Power supply system and power supply method

Abstract

This application provides a power supply system and method, relating to the field of power supply technology. In this method, when a control device determines that the output power of the power supply component is greater than the first load power, it controls the first output power of the power supply component to supply power to the load device (i.e., the low-voltage load), and controls the second output power of the power supply component to charge the battery and / or the power battery; or, when the output power is less than or equal to the first load power, it controls the output power of the power supply component to supply power to the load device. This reduces energy loss and improves energy utilization.

Description

Technical Field

[0001] This application relates to the field of power supply technology for electronic devices, and more particularly to power supply systems and power supply methods. Background Technology

[0002] Currently, photovoltaic technology has wide applications in end-user devices. Taking vehicles as an example, with the increasing popularity of hybrid electric vehicles (HEVs) and electric vehicles (EVs), the electrification level of vehicles is rising, and vehicle-integrated photovoltaics (VIPV) technology is gradually becoming an important technology for improving driving range and optimizing energy efficiency. For example, photovoltaic modules can be integrated into the roof, hood, and other parts of a vehicle. These photovoltaic modules can convert solar energy into electrical energy to charge the vehicle's battery; furthermore, when operating low-voltage loads (such as air conditioners, refrigerators, oxygen concentrators, etc.), the battery can also supply power to those low-voltage loads.

[0003] However, such a scheme results in significant energy loss and low energy utilization. Summary of the Invention

[0004] This application provides a power supply system and power supply method that can reduce the loss of electrical energy output from power generation components and improve energy utilization.

[0005] In a first aspect, this application provides a power supply method applied to a control device. The control device can be an electronic device, such as a vehicle, drone, home appliance, or device within a vehicle; it can also be a component within an electronic device (e.g., a controller, chip, chip system, circuit, software, and / or hardware module, etc.). For example, the control device can be a controller within a vehicle, such as a vehicle controller.

[0006] The method includes: acquiring the output power of a power generation component and a first load power, wherein the first load power is the sum of the rated power of one or more load devices, and the rated voltage of the load devices is a first voltage; when the output power of the power generation component is greater than the first load power, controlling the output power of the power generation component to perform power distribution and outputting a first output power and a second output power, controlling the first output power to supply power to the load devices, and controlling the second output power to charge the energy storage device; or, when the output power is less than or equal to the first load power, controlling the output power of the power generation component to supply power to the load devices.

[0007] The rated power of one or more load devices is used to calculate the first load power. The rated power of each of the one or more load devices can be a preset value. The control device can determine one or more load devices through pre-configured rules and calculate the sum of the rated power of the one or more load devices to obtain the first load power.

[0008] The power supply method provided in this application, when the output power is greater than the first load power, allows the output power of the power generation component to not only supply power to the load equipment, but also to charge the storage battery and / or power battery with the remaining power, thus fully utilizing the output power of the power generation component and improving energy utilization efficiency. When the output power is less than or equal to the first load power, the output power of the power generation component is used to supply power to the load equipment.

[0009] In this way, the power generated by the power generation components does not need to first undergo rectification and voltage conversion to charge the power battery, and then the output power of the power battery needs to undergo a second voltage conversion to supply power to the load equipment. This reduces the energy loss caused by voltage conversion during the power supply process and improves energy utilization.

[0010] In addition, fully utilizing the output power of the power generation components to supply power to the load equipment can reduce the charging and discharging pressure of the power battery while supplying power to the load equipment, thereby reducing the impact of the load equipment's operation on the driving range and helping to improve the lifespan of the power battery.

[0011] In conjunction with the first aspect, in some possible implementations, one or more load devices are all load devices, operating load devices, all devices that can be directly powered by the power generation components, or operating load devices that can be directly powered by the power generation components.

[0012] The term "all load devices" can refer to all load devices in an electronic device, or all load devices in an electronic device that can be directly powered by the power generation component. For example, all load devices or all comfort loads in a vehicle, or all load devices or comfort loads in a vehicle that can be directly powered by the power generation component.

[0013] In this case, the first load power is the sum of the rated power of all load devices. An output power greater than the first load power indicates that the power generation components can support the operation of all load devices.

[0014] Operating load devices can be all operating load devices in electronic devices, or load devices in electronic devices that can be directly powered by power generation components and are in operation. For example, all operating load devices or all comfort loads in a vehicle, or all operating load devices or comfort loads in a vehicle that can be directly powered by power generation components.

[0015] In this case, the first load power is the sum of the rated power of the operating load equipment. An output power greater than the first load power indicates that the output power of the power generation component can support the stable operation of the operating load equipment.

[0016] Load devices that can be directly powered by power generation components are those that can be directly powered by the power generation components. The output power of the power generation components does not need to first charge the energy storage device, and then the energy storage device supplies power to the load device. This reduces energy loss during the charging process of the power generation components to the energy storage device and improves energy utilization. Load devices that can be directly powered by power generation components can also be understood as load devices connected to the power generation components through a first power conversion device.

[0017] In conjunction with the first aspect, in some possible implementations, when the output power is less than the first load power, the method further includes: controlling the energy storage device to supply power to the load device.

[0018] If the output power is less than the first load power, it means that the power generation component is insufficient to support the smooth operation of one or more load devices. Therefore, the control device can also control the energy storage device to supply power to the load devices so that the load devices can operate smoothly.

[0019] In conjunction with the first aspect, in some possible implementations, the energy storage device includes a power battery or a storage battery, wherein the rated voltage of the storage battery is a first voltage and the rated voltage of the power battery is a second voltage; controlling the energy storage device to supply power to the load device includes: controlling the power battery to supply power to the load device when the electronic device is powered on; or, controlling the storage battery to supply power to the load device when the electronic device is powered off.

[0020] It is understandable that in scenarios where electronic devices are powered down, the circuitry supplying power to the load device via the battery is either powered down or disconnected, preventing the battery from supplying power. Therefore, in such scenarios, the battery can supply power to the load device, thereby improving its reliability.

[0021] In scenarios where electronic devices are powered on, both storage batteries and main batteries can supply power to the load. However, because the cycle life of storage batteries is typically shorter than that of main batteries, and their instantaneous discharge capacity is limited, prolonged high-load discharge can lead to voltage drops. Therefore, in scenarios where electronic devices are powered on, the main battery can supply power to the load, which can improve battery life and help maintain the normal operating condition of the load.

[0022] Furthermore, if power is supplied by a storage battery, it must be charged by a power battery, increasing the energy loss during the charging process. Therefore, in scenarios where electronic devices are powered, the power battery can supply the load, reducing energy loss and improving energy utilization.

[0023] In conjunction with the first aspect, in some possible implementations, controlling the power battery to supply power to the load device includes: controlling the output power of the power battery to perform voltage conversion and output a third output power, the voltage of the third output power being the first voltage; and supplying power to the load device through the third output power.

[0024] For example, the control device uses a second power conversion device, such as a bidirectional DC-DC circuit, to convert the output power of the power battery into a third output power with the first voltage; and controls the second power conversion device to input the third output power into the load device.

[0025] In this context, a bidirectional DC-DC circuit can be understood as a DC-DC circuit with reversible power flow and the ability to perform voltage conversion. For example, a bidirectional DC-DC circuit can control the power output from the power battery to flow to the load device, and perform voltage conversion on the power output from the power battery to adapt to the first voltage of the load device, thereby providing power to the load device.

[0026] In conjunction with the first aspect, in some possible implementations, the energy storage device includes a power battery or a storage battery, wherein the rated voltage of the storage battery is a first voltage, and the rated voltage of the power battery is a second voltage; controlling the second output power to charge the energy storage device includes: controlling the second output power to charge the storage battery when the storage battery meets a first charging condition; or, controlling the second output power to charge the power battery when the storage battery does not meet the first charging condition. The first charging condition includes the storage battery's charge being less than or equal to a first threshold.

[0027] The first threshold can be a preset value, such as 100%, or a value close to 100%, such as 90%.

[0028] In this way, the second output power is prioritized for charging the battery, minimizing energy loss caused by the power battery charging the battery when its charge is insufficient.

[0029] Optionally, the first charging condition may also include one or more of the following: the battery temperature is within temperature range 1; the battery is not in a faulty state, etc.

[0030] Temperature range 1 can be understood as the normal temperature range of the battery. When the battery temperature is within temperature range 1, it means the battery is in a temperature range where it can operate normally (charge and discharge). This improves the safety of charging the battery.

[0031] In conjunction with the first aspect, in some possible implementations, controlling the second output power to charge the power battery includes: when the electronic device is powered off, and after the electronic device is powered on, controlling the second output power to charge the power battery.

[0032] It is understandable that in scenarios where electronic devices are powered down, the charging circuit for the power battery may be in a powered-down or disconnected state, preventing the secondary output power from the power battery from reaching it. For example, when the vehicle is powered down, the vehicle controller typically instructs the battery management system (BMS) to disconnect the main positive and negative contactors of the power battery, thereby achieving electrical isolation between the high-voltage system and the vehicle to prevent safety hazards such as high-voltage leakage and accidental power-on. In this situation, external electrical energy cannot be transmitted to the power battery. Furthermore, the BMS may be in a non-operational state, ceasing charge and discharge management of the power battery, thus preventing charging of the battery.

[0033] Therefore, the control device can first control the vehicle to power on, so that the charging circuit of the power generation component to charge the power battery is powered on (or switched to a closed state), and related components such as BMS can also be powered on and switched to working state, so that the second output power output by the power generation component can charge the power battery.

[0034] Optionally, controlling the vehicle's power-on can also be switched to controlling the power-on of the charging circuit and related components such as the BMS. That is, in some scenarios, the control device may not control the power-on of the entire vehicle, but instead control the power-on of the charging circuit and related components such as the BMS. The charging circuit and related components such as the BMS are the smallest units that enable the power generation components to charge the power battery.

[0035] In conjunction with the first aspect, in some possible implementations, the method further includes: sending first information to a user terminal, the first information being used to request the electronic device to power on; and receiving second information from the user terminal, the second information being used to confirm that the electronic device is powered on.

[0036] This allows the system to confirm the user's consent before powering on the electronic device, thus improving the user experience.

[0037] Optionally, upon receiving third information from the user terminal, which is used to refuse power to the electronic device, the control device may control the output power of the power generation component to supply power to the load device, without charging the storage battery and the power battery.

[0038] In conjunction with the first aspect, in some possible implementations, controlling the second output power to charge the power battery includes: controlling the second output power to charge the power battery when the power battery meets the second charging conditions.

[0039] The second charging condition includes: the electronic device is powered on, and the power battery charge is less than or equal to the second threshold.

[0040] It is understandable that the second threshold can be a preset value, such as 100%, or a value close to 100%, such as 95%. The second threshold can be the same as or different from the first threshold.

[0041] In this way, the power generation component can charge the power battery when the power battery has a low charge level, and control the power generation component not to charge the power battery when the power battery has a high charge level, so as to reduce damage to the power battery.

[0042] Optionally, the second charging condition may also include one or more of the following: the temperature of the power battery is within temperature range 2; the power battery is not in a fault state, etc.

[0043] Temperature range 2 refers to the temperature range within which the power battery can operate normally (charge and discharge). This further improves the safety of charging the power battery.

[0044] In conjunction with the first aspect, in some possible implementations, the load device is started based on a user request; or, the load device is started based on the fulfillment of triggering conditions.

[0045] This approach can meet different user needs, be applicable to various application scenarios, and improve the user experience.

[0046] In conjunction with the first aspect, in some possible implementations, the triggering conditions include one or more of the following:

[0047] The cabin temperature is higher than the first temperature; the cabin temperature is lower than the second temperature; the cabin air quality is lower than the first level; the load device temperature is higher than the third temperature; the load device temperature is lower than the fourth temperature; the cabin outside temperature is higher than the fifth temperature; the output power is higher than the third threshold; the ambient light intensity is greater than or equal to the fourth threshold; or, the time interval between the current time and the start time of the scheduled trip is less than the first duration.

[0048] In other words, when the cabin environment is poor, the photovoltaic power generation conditions are good (such as sufficient sunlight), or before the user is about to use the vehicle, the low-voltage loads in the electronic devices (i.e., the load devices mentioned above) can be started. Some or all of the load devices mentioned above can be comfort loads, thereby improving the user's riding comfort and enhancing the level of intelligence.

[0049] In conjunction with the first aspect, in some possible implementations, the load device is a device that implements a specific purpose.

[0050] In other words, as the cabin environment changes, the system can adaptively activate load devices (such as comfort loads) that match the current cabin environment, thereby improving comfort, reducing energy waste, and enhancing the level of intelligence.

[0051] In conjunction with the first aspect, in some possible implementations, controlling the output power of the power generation component to output a first output power and a second output power after power distribution includes: controlling a first power conversion device to distribute the output power of the power generation component and output the first output power and the second output power.

[0052] For example, by using a maximum power point tracking (MPPT) circuit, the output power of the power generation component can be controlled to be allocated as a first output power and a second output power. The first output power can be controlled to supply power to the load equipment, and the second output power can be controlled to charge the energy storage device.

[0053] The voltage of the first output power and the voltage of the second output power are referred to as the first voltage.

[0054] It is understood that the MPPT circuit has a power distribution function. Therefore, the control device can control the first output power of the power generation component to supply power to the load equipment through the MPPT circuit; and control the second output power to charge the storage battery and / or the power battery.

[0055] In conjunction with the first aspect, in some possible implementations, the energy storage device includes a power battery and a storage battery, wherein the rated voltage of the storage battery is a first voltage and the rated voltage of the power battery is a second voltage; controlling the second output power to charge the energy storage device includes: controlling the first power conversion device to charge the storage battery through the second output power; or, controlling the second power conversion device to perform voltage conversion on the second output power to output a fourth output power and charge the power battery through the fourth output power, wherein the voltage of the fourth output power is the second voltage.

[0056] The first power conversion device can be an MPPT circuit, and the second power conversion device can be a bidirectional DC-DC circuit.

[0057] In this way, the power distribution of the power generation component can be realized based on the MPPT circuit, and the second output power can be controlled to flow to the power battery based on the bidirectional DC-DC circuit. Furthermore, the voltage of the second output power can be converted based on the bidirectional DC-DC circuit to match the rated voltage of the power battery, thereby enabling the charging of the power battery.

[0058] Optionally, the bidirectional DC-DC circuit can be a bidirectional isolated DC-DC circuit. This enables electrical isolation between the input and output sides, improving system safety.

[0059] Secondly, this application provides a power supply system, which includes: a control device, a power generation component, and an energy storage device;

[0060] The control device is used to: acquire the output power of the power generation component and the first load power; when the output power is greater than the first load power, control the output power of the power generation component to perform power distribution and output the first output power and the second output power, control the first output power to supply power to the load device, and control the second output power to charge the energy storage device; or, when the output power is less than or equal to the first load power, control the output power of the power generation component to supply power to the load device.

[0061] The first load power is the sum of the rated power of one or more load devices. The rated voltage of one or more load devices is the first voltage.

[0062] In conjunction with the second aspect, in some possible implementations, the energy storage device includes a storage battery or a power battery, wherein the rated voltage of the storage battery is a first voltage and the rated voltage of the power battery is a second voltage; the system also includes: a first power conversion device and a second power conversion device;

[0063] The power generation component is connected to the battery and the load device respectively through the first power conversion device; the power generation component is connected to the power battery through the first power conversion device and the second power conversion device; the second output power is output as the fourth output power through the second power conversion device; the voltage of the first output power and the second output power is the first voltage, and the voltage of the fourth output power is the second voltage.

[0064] Thirdly, this application provides another power supply method applied to a control device, which can be referred to in the description in the first aspect.

[0065] The method includes: acquiring the output power of a power generation component and a first load power; the first load power is the sum of the rated power of one or more load devices, and the rated voltage of the load devices is a first voltage; controlling the output power of the power generation component to supply power to the load devices; and controlling an energy storage device to supply power to the load devices when the output power of the power generation component is less than the first load power.

[0066] That is, compared with the discharge method provided in the first aspect, in the power supply method provided in the third aspect, when the output power is greater than or equal to the first load power, the power generation component does not charge the power battery and / or storage battery.

[0067] In this power supply method, the power generation components are used to supply power to the load equipment, which can reduce the pressure of charging and discharging the power battery, reduce the impact on the driving range, and improve the life of the power battery.

[0068] In addition, the power generation components directly supply power to the load equipment, reducing the energy loss during the process of the power battery supplying power to the load equipment, which helps to improve energy utilization.

[0069] In conjunction with the third aspect, in some possible implementations, the energy storage device includes a storage battery or a power battery; controlling the energy storage device to supply power to the load device includes: controlling the power battery to supply power to the load device when the electronic device is powered on; and controlling the storage battery to supply power to the load device when the electronic device is powered off.

[0070] In conjunction with the third aspect, some possible implementations involve controlling the output power of the power generation components to supply power to the load equipment, including:

[0071] The output power of the power generation component is controlled by a first power conversion device (such as an MPPT circuit) to supply power to the load device. For example, the first power conversion device converts the output power of the power generation component into voltage so that the voltage value of the output power of the power generation component is a first voltage.

[0072] In conjunction with the third aspect, in some possible implementations, controlling the storage battery and / or power battery to supply power to the load equipment includes:

[0073] The control switch module switches to the second state to enable the storage battery and / or power battery to supply power to the load equipment.

[0074] In conjunction with the third aspect, some possible implementations include controlling the power battery to supply power to the load device, including:

[0075] The second power conversion device controls the voltage conversion of the power battery's output power and directs it to the load device. Furthermore, the second power conversion device also converts the power battery's output power to output a third output power, the voltage of which is the same as the first voltage, and this third output power supplies power to the load device.

[0076] The second power conversion device is, for example, a bidirectional DC-DC circuit.

[0077] In conjunction with the third aspect, in some possible implementations, the load device is started based on a user request; or, the load device is started based on the fulfillment of triggering conditions.

[0078] In conjunction with the third aspect, in some possible implementations, the triggering conditions include one or more of the following:

[0079] The cabin temperature is higher than the first temperature; the cabin temperature is lower than the second temperature; the cabin air quality is lower than the first level; the load device temperature is higher than the third temperature; the load device temperature is lower than the fourth temperature; the cabin outside temperature is higher than the fifth temperature; the output power is higher than the third threshold; the ambient light intensity is greater than or equal to the fourth threshold; or, the time interval between the current time and the start time of the scheduled trip is less than the first duration.

[0080] It should be understood that the specific implementation of the third aspect or any possible implementation of the third aspect is similar to the specific implementation of the first aspect or any possible implementation of the first aspect, and can be described in the first aspect, and will not be repeated here.

[0081] Fourthly, this application provides another power supply system, which includes: a control device, a power generation component, and an energy storage device; the control device is used to obtain the output power of the power generation component and the first load power; control the output power of the power generation component to supply power to the load device; and control the energy storage device to supply power to the load device when the output power is less than the first load power.

[0082] The first load power is the sum of the rated power of one or more load devices. The rated voltage of the load device is the first voltage.

[0083] In conjunction with the fourth aspect, in some possible implementations, the energy storage device includes a power battery or a storage battery.

[0084] In conjunction with the fourth aspect, in some possible implementations, the system also includes a switching module. The energy storage device is connected to the load device via the switching module.

[0085] The control device is used to: control the switch module to be in a first state when the output power is greater than or equal to the first load power; and control the switch module to be in a second state when the output power is less than the first load power.

[0086] The first state is, for example, an open state, so that when the output power of the power generation component is greater than or equal to the first load power, the output power of the battery and / or the power battery will not flow to the load device. The second state is, for example, a closed state, so that when the output power of the power generation component is less than the first load power, the output power of the battery and / or the power battery can flow to the load device to power the load device.

[0087] In conjunction with the fourth aspect, in some possible implementations, the energy storage device includes a storage battery or a power battery; the system also includes a first power conversion device and a second power conversion device, with the storage battery having a rated voltage of the first voltage and the power battery having a rated voltage of the second voltage. Specifically, the power generation component is connected to the load device via the first power conversion device; the storage battery is connected to the load device; the power battery is connected to the load device via the second power conversion device; the output power of the power battery is converted into a third output power via the second power conversion device, and the voltage of the power generation component's output power and the third output power is the first voltage.

[0088] For example, the power battery is connected to the load device through a second power conversion device and a switching module; the storage battery is connected to the load device through a switching module.

[0089] Fifthly, this application provides a control device capable of implementing the method in the first aspect or any possible implementation of the first aspect, or the method in the third aspect or any possible implementation of the third aspect. The device includes corresponding units (or modules) for performing the above-described methods. The units (or modules) included in the device can be implemented in software and / or hardware.

[0090] Sixthly, this application provides another control device, which includes at least one processor, each of the at least one processor being configured to implement the method in the first aspect or any possible implementation of the first aspect, or the method in the third aspect or any possible implementation of the third aspect.

[0091] Optionally, the device may also include a communication interface (or transceiver), with the processor coupled to the communication interface.

[0092] In a seventh aspect, this application provides an electronic device for implementing the method shown in the first aspect or any possible implementation of the first aspect, or the method shown in the third aspect or any possible implementation of the third aspect.

[0093] Eighthly, this application provides a chip system including at least one processor for supporting the implementation of the methods shown in the first aspect and any possible implementation of the first aspect, or the third aspect and any possible implementation of the third aspect.

[0094] In one possible design, the chip system also includes a memory for storing program instructions and data, which may be located inside or outside the processor.

[0095] The chip system can consist of chips or include chips and other discrete components.

[0096] Ninthly, this application provides a terminal device comprising: a power supply system as shown in the second aspect or any possible implementation thereof; or a power supply system as shown in the fourth aspect or any possible implementation thereof. The terminal device may further include one or more load devices as described above.

[0097] The terminal device can be a vehicle, or a smart terminal such as a drone or robot.

[0098] In a tenth aspect, this application provides a computer-readable storage medium storing a computer program (also referred to as code or instructions) that, when executed by a processor, enables the implementation of the methods in the first aspect and any possible implementation of the first aspect, or the methods in the third aspect and any possible implementation of the third aspect.

[0099] In the eleventh aspect, this application provides a computer program product comprising: a computer program (also referred to as code or instructions) that, when executed, enables the implementation of the methods in the first aspect and any possible implementation of the first aspect, or the methods in the third aspect and any possible implementation of the third aspect.

[0100] It should be understood that the second to eleventh aspects of this application correspond to the technical solutions of the first aspect of this application, and the beneficial effects achieved by each aspect and the corresponding feasible implementation are similar, and will not be repeated here. Attached Figure Description

[0101] Figure 1 This is a schematic diagram of a charging system architecture;

[0102] Figure 2 A schematic block diagram of an intelligent driving device provided in an embodiment of this application;

[0103] Figure 3 A schematic block diagram of an intelligent driving system provided in an embodiment of this application;

[0104] Figure 4 A schematic diagram of a process for supplying power to a low-voltage load;

[0105] Figure 5 A schematic block diagram of a first power supply system provided in the embodiments of this application;

[0106] Figure 6 A schematic block diagram of a second power supply system provided in the embodiments of this application;

[0107] Figure 7A schematic diagram illustrating how a photovoltaic module, provided in an embodiment of this application, simultaneously supplies power to a low-voltage load and charges a power battery;

[0108] Figure 8 A schematic diagram illustrating how a photovoltaic module, provided in an embodiment of this application, simultaneously supplies power to a low-voltage load and charges a battery.

[0109] Figure 9 A schematic diagram illustrating how photovoltaic modules and batteries simultaneously supply power to a low-voltage load, as provided in an embodiment of this application.

[0110] Figure 10 A schematic diagram illustrating how photovoltaic modules and power batteries simultaneously supply power to a low-voltage load, as provided in an embodiment of this application.

[0111] Figure 11 A flowchart illustrating the first power supply method provided in an embodiment of this application;

[0112] Figure 12 A schematic flowchart illustrating the power supply method for a vehicle power-on scenario provided in this application embodiment;

[0113] Figure 13 This is a flowchart illustrating the power supply method in a vehicle power-off scenario provided in an embodiment of this application.

[0114] Figure 14 A schematic block diagram of a third power supply system provided in the embodiments of this application;

[0115] Figure 15 A schematic flowchart illustrating the second power supply method provided in this application embodiment;

[0116] Figure 16 A schematic block diagram of a control device provided in an embodiment of this application;

[0117] Figure 17 A schematic block diagram of another control device provided in an embodiment of this application. Detailed Implementation

[0118] To facilitate understanding of the embodiments of this application, the following points will be explained first:

[0119] First, in the embodiments of this application, the indication includes explicit indication (also known as direct indication) and implicit indication (also known as indirect indication). Explicit indication information A refers to including information A; implicit indication information A refers to indicating information A through the correspondence between information A and information B and direct indication information B. The correspondence between information A and information B can be predefined, pre-stored, pre-burned, or pre-configured; or it can refer to indicating information A through information B and preset rules.

[0120] Second, in the embodiments of this application, information C is used to determine information D, which includes determining information D based solely on information C, as well as determining it based on information C and other information. Furthermore, information C can also be used to determine information D indirectly, for example, in the case where information D is determined based on information E, and information E is determined based on information C.

[0121] Third, in the embodiments of this application, "at least one" refers to one or more, and "more than one" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates an "or" relationship between the preceding and following related objects, but it does not exclude the possibility of indicating an "and" relationship. The specific meaning can be understood in conjunction with the context. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c; a and b; a and c; b and c; or a and b and c. Here, a, b, and c can be single or multiple.

[0122] Fourth, in the embodiments of this application, the use of prefixes such as "first" and "second" is merely for the purpose of distinguishing and describing different things belonging to the same name category, and does not constrain the order, size, or quantity of things. For example, "first threshold" and "second threshold" are simply different thresholds, and there is no temporal order, size, or priority relationship between them.

[0123] Fifth, the "sending" and "receiving" in the embodiments of this application can be performed between devices, such as between a second device and a first device; or they can be performed within a device, such as between components, modules, chips, software modules, or hardware modules within a device via a bus, wiring, or interface.

[0124] Sixth, in the embodiments of this application, "when," "if," and "if" all refer to the device making corresponding processing under certain objective circumstances, and are not limited to a time, nor do they require the device to make a judgment action when it is implemented, nor do they mean that there are other limitations.

[0125] Seventh, in the embodiments of this application, the words "example," "exemplarily," "for example," or "such as" are used to indicate that they are examples, illustrations, or explanations. Any embodiment or design that is described as "example," "exemplarily," "for example," or "such as" in this application should not be construed as being more preferred or advantageous than other embodiments or design options. Specifically, the use of the words "example," "exemplarily," "for example," or "such as" is intended to present the relevant concepts in a specific manner.

[0126] Ninth, the power supply system and power supply method provided in the embodiments of this application can be applied to vehicles or devices in vehicles. For example, the power supply system can be installed in a vehicle or a device in a vehicle. The power supply method can be executed by a device in the vehicle, which can be, for example, a hardware unit, a software module, or a combination of a hardware unit and a software module; such device includes, but is not limited to: vehicle terminal, vehicle controller, vehicle module, vehicle assembly, vehicle component, vehicle chip, vehicle unit, etc.

[0127] Of course, the power supply system and power supply method provided in this application embodiment can also be used in other electronic devices besides vehicles, or installed in other electronic devices besides vehicles, or installed in components of such electronic devices. Such electronic devices include, for example, intelligent transportation equipment, robots, drones, smart home devices, etc.

[0128] To facilitate understanding, the terminology used in the embodiments of this application will be explained first.

[0129] 1. Power batteries and storage batteries

[0130] A power battery, which can be understood as a high-voltage power source in electronic devices, is also called a power battery pack or high-voltage battery pack. It is used to supply power to the high-voltage loads in electronic devices, ensuring their operation. For example, a power battery is a power source used to provide power to electronic devices.

[0131] A storage battery, also known as a low-voltage battery, is a low-voltage power source in electronic devices. It is used to supply power to low-voltage loads in electronic devices and ensure their operation.

[0132] It's understandable that "low voltage" and "high voltage" here are relative terms. The rated voltage of a high-voltage load or power battery is greater than the rated voltage of a storage battery or low-voltage load. For example, loads in electronic devices can be divided into two types: the rated voltage of the first type of load is voltage 1, and the rated voltage of the second type of load is voltage 2, where voltage 2 is greater than voltage 1. Therefore, the first type of load can be understood as a low-voltage load, and the second type of load as a high-voltage load. Furthermore, the rated voltage of a storage battery can be voltage 1, and the rated voltage of a power battery can be voltage 2.

[0133] Taking vehicles as an example, the rated voltage of a power battery in a vehicle is typically 200V-800V. It can be understood as an integrated high-voltage energy storage device that powers the vehicle's drive motor and determines the vehicle's driving range. Storage batteries are usually 12V or 24V batteries, used to power low-voltage loads in the vehicle; storage batteries do not participate in the vehicle's power drive.

[0134] It is understood that the 200V-800V, 12V, and 24V mentioned above are merely examples, and the rated voltage of the power battery and / or storage battery may be replaced with others in other electronic devices. Furthermore, even in vehicles, these voltage values ​​may be replaced with others as the vehicle industry develops, and this application does not specifically limit this.

[0135] It is also understood that the embodiments of this application describe the power supply system as applied to a vehicle. When the power supply system is applied to other electronic devices, components such as power batteries and storage batteries can be replaced with other names. The embodiments of this application do not make specific limitations in this regard.

[0136] 2. Power factor correction circuit (PFC)

[0137] When applied to vehicles, Power Factor Correction (PFC) can be understood as a pre-processing unit in the vehicle charging process, used to adjust the input power factor. By controlling the input current waveform to follow the voltage waveform, PFC can reduce harmonic pollution and improve grid utilization.

[0138] 3. On-board charger (OBC) circuit

[0139] OBC can be understood as the on-board charging component in hybrid and electric vehicles. The OBC circuit is the core component of OBC, and it is a set of hardware circuit topologies that can realize alternating current to direct current (AC-DC) conversion.

[0140] For example, such as Figure 1 As shown, when charging a vehicle, the output power of the charging pile can be input to the power battery through the vehicle's OBC circuit to charge the power battery. The OBC circuit converts the AC power output from the charging pile into DC power that can be input to the power battery.

[0141] In some possible implementations, the OBC circuit may include: an input filter circuit, a PFC circuit, a DC-DC converter circuit, and a control and protection circuit. During charging, the output power of the charging pile can be processed sequentially through the input filter circuit, PFC circuit, DC-DC converter circuit, and control and protection circuit before being input to the power battery.

[0142] Among them, the input filtering circuit is, for example, an electromagnetic compatibility (EMC) filter, which can filter out power grid harmonic interference.

[0143] PFC circuits can improve the power factor and suppress harmonics. They can also initially boost AC power into stable high-voltage DC power.

[0144] A DC-DC converter circuit (or simply a DCDC circuit) can adjust the voltage to the range required by the power battery and control the charging current. A DC-DC converter circuit may include, for example, an inductor-inductor-capacitor (LLC) resonant converter (or LLC circuit), which can also be understood as a power conversion unit. It can receive the high-voltage DC output from the PFC circuit and achieve high-frequency isolation step-down.

[0145] The control and protection circuit can be used to monitor parameters such as charging voltage, charging current, and power battery temperature. If these parameters exceed the normal range, the OBC circuit can be cut off to improve charging safety.

[0146] 4. Low-voltage load

[0147] Low-voltage loads are devices typically powered by batteries, or devices with the same rated voltage as the battery. In vehicles, low-voltage loads can be categorized into three types based on their function: control low-voltage loads, starting and power supply low-voltage loads, and comfort loads.

[0148] Among them, control-type low-voltage loads may include, but are not limited to, various control units such as: on-board electronic control unit (ECU), engine ECU, transmission control unit (TCU), body control module (BCM), battery management system (BMS), vehicle control unit (VCU), airbag control unit (ACU), anti-lock braking system (ABS) and / or electronic stability program (ESP) controller; and may also include sensors such as throttle position sensor, oxygen sensor, fuel injector, relay, fuse, etc.

[0149] Low-voltage loads for starting and power supply are responsible for starting the vehicle and replenishing the battery's energy. These may include, but are not limited to, starter motors, generators, and DC-DC converters.

[0150] Comfort loads may include, but are not limited to: in-vehicle refrigerator, in-vehicle air conditioner, display device, headlights, window lift motor, door lock motor, windshield wipers, rearview mirror adjustment motor, audio system, in-vehicle charger (such as USB interface), seat heating, ventilation module, electronic parking brake, electric power steering (EPS), and auto hold controller, etc.

[0151] 5. Vehicle-integrated photovoltaics (VIPV)

[0152] VIPV integrates photovoltaic modules, such as photovoltaic panels, into the vehicle body structure, enabling the photovoltaic modules to absorb solar energy and convert the absorbed solar energy into electrical energy, thereby powering the vehicle's electrical system or replenishing the power battery.

[0153] It should be understood that, in the embodiments of this application, photovoltaic modules may be integrated into the vehicle roof, sunroof, door surface, fender surface, window, trunk lid, or hood, etc., and the embodiments of this application do not specifically limit this.

[0154] 6. Maximum Power Point Tracking (MPPT) Circuit

[0155] An MPPT circuit is a circuit used in renewable energy power generation scenarios such as photovoltaic and wind power systems. It can track (or detect) the maximum power point (MPP) of the power generation device in real time. The MPPT circuit acts as the "brain" and "optimizer" between the photovoltaic module and the energy storage device and / or load device, converting the power output of the variable photovoltaic module into usable voltage and current to power the load device or charge the energy storage device.

[0156] Taking photovoltaic (PV) modules as an example, the output power of a PV module is not a constant value; it varies with changes in light intensity, ambient temperature, or load impedance. PV modules exhibit an MPP (Maximum Power Limitation). Understandably, when a PV module is directly connected to a load or battery, its output power may deviate from the MPP, leading to energy waste. The MPPT (Maximum Power Limitation and Test) circuit dynamically adjusts the circuit's equivalent load impedance by real-time monitoring of the PV module's output voltage and current, enabling the PV module to operate at its MPP and thus maximizing its output power.

[0157] MPPT circuits may include, but are not limited to, boost MPPT circuits, buck MPPT circuits, and buck-boost MPPT circuits.

[0158] Among them, the boost-type MPPT circuit is used to convert the input DC power into an output DC power of equal amplitude or higher voltage.

[0159] A step-down MPPT circuit is used to convert input DC power into output DC power of equal amplitude or lower voltage.

[0160] A step-up / step-down MPPT circuit can be used to achieve either a step-up or step-down voltage. That is, the output voltage can be higher than, lower than, or equal to the input voltage.

[0161] 7. Power generation components

[0162] A power generation component is a component that can generate electricity itself, such as a photovoltaic module that generates electricity through solar power or a wind power generation module. In specific implementations, it may also be other devices with power generation functions, which are not specifically limited here. In this embodiment, a photovoltaic module is used as an example for introduction.

[0163] 8. Power generation and output power of the power generation components

[0164] For example, when the power generation module is a photovoltaic module, the power generation is the actual power output of the photovoltaic module after converting solar energy, which is mainly affected by factors such as solar radiation intensity, ambient temperature, shading, module performance and aging. The greater the solar radiation intensity, the lower the ambient temperature (within a reasonable range), the less shading, and the newer and better matched the module, the higher the output power; conversely, it will decrease.

[0165] The output power of a photovoltaic (PV) module is the actual usable power output with a usable voltage after rectification or voltage conversion of the PV module's generated power. In practice, the PV module's generated power is rectified or converted to form the output power. This output power may have certain system losses compared to the generated power. For example, the rectification or voltage conversion circuit can be an MPPT circuit or a two-phase DC-DC circuit. In practice, it may also be other circuits or devices with rectification or voltage conversion functions, which are not specifically limited here.

[0166] The power supply system and power supply method provided in this application embodiment can be applied to intelligent driving devices or electronic devices equipped with intelligent driving systems. Below, in conjunction with... Figure 2 and Figure 3 A detailed description of intelligent driving equipment and intelligent driving systems is provided.

[0167] Figure 2 This is a functional block diagram of an intelligent driving device 200 to which this application embodiment applies. For example... Figure 2 As shown, the intelligent driving device 200 may include a perception system 210, a computing platform 220, a display device 230, and a power supply system 240.

[0168] The perception system 210 includes several sensors for sensing information about the environment surrounding the intelligent driving device 200.

[0169] Optionally, the sensing system 210 may include one or more sensors selected from light sensors, temperature sensors, or environmental sensors.

[0170] Among them, the light sensor can be used to detect the intensity and brightness of ambient light. In this embodiment, the light sensor can be an ambient light sensor used to detect light intensity.

[0171] Temperature sensors may include one or more of the following: temperature sensors located inside the cabin, temperature sensors located outside the cabin, or temperature sensors located under low-pressure loads (such as temperature sensors located in vehicle refrigerators).

[0172] For example, in this embodiment of the application, a temperature sensor installed in the cabin can be used to detect the outside temperature of the cabin, and a temperature sensor installed in the cabin can be used to detect the inside temperature of the cabin. A temperature sensor installed in a low-pressure load, such as a temperature sensor installed in a car refrigerator, can be used to detect the temperature in the low-pressure load; a temperature sensor installed on the steering wheel can be used to detect the temperature of the steering wheel; and a sensor installed in the seat can be used to detect the seat temperature. The seat in this embodiment of the application can include the driver's seat in the vehicle, or it can include seats in other locations.

[0173] Environmental sensors can be understood as sensors that can be used to detect the quality of the environment inside the cabin, such as PM2.5, oxygen content, and the presence of odors.

[0174] It should be understood that the sensors shown above are merely examples. In actual application scenarios, the sensing system 210 may include more or fewer sensors, and this application embodiment does not specifically limit this.

[0175] Some or all of the functions of the intelligent driving device 200 may be controlled by the computing platform 220. For example, the computing platform 220 may include processors 221 to 22n.

[0176] The computing platform 220 can also control the operation of intelligent driving systems, which may include, for example, advanced driving assistance systems (ADAS) and autonomous driving systems (ADS).

[0177] In some possible implementations, the computing platform 220 may acquire sensor data from the sensing system 210 to determine information such as cabin temperature, outside cabin temperature, cabin environmental quality, and ambient light intensity, in order to determine whether to activate or deactivate comfort-related loads in the vehicle. Specific details are provided below and will not be elaborated upon here.

[0178] The display devices 230 in the cockpit of intelligent driving equipment 200 are mainly divided into two categories: the first category is the vehicle-mounted display screen; the second category is the projection display screen, such as the head-up display (HUD).

[0179] For example, the vehicle display screen may display controls for starting and / or turning off the low-voltage load. When the display device 230 detects user input to the controls, it may transmit corresponding information, such as information for instructing the starting or turning off of the low-voltage load, to the computing platform 220 so that the computing platform 220 can instruct the controller of the low-voltage load to start or turn off the low-voltage load.

[0180] In this way, users can control the start and stop of low-voltage loads through the low-voltage load control module.

[0181] The power supply system 240 can be used to supply power to low-voltage loads. The power supply system 240 may include: energy storage devices (e.g., batteries and power batteries), a first power conversion device (e.g., an MPPT circuit), and power generation components (e.g., photovoltaic modules). Batteries, power batteries, and power generation components can all be used to supply power to low-voltage loads. A detailed description of the power supply system 240 follows, but will not be elaborated upon here.

[0182] Figure 3 A schematic block diagram of an intelligent driving system 300 provided in an embodiment of this application is shown. Figure 3 As shown, the system 300 includes a sensing module 310, a control module 320, a human-computer interaction module 330, a display module 340, and a power supply system 350.

[0183] In this context, the power supply system 350 can be understood as part of the intelligent driving system 300; or, in some scenarios, the power supply system 350 can also be understood as a device outside of the intelligent driving system 300.

[0184] The sensing module 310 may include Figure 2 The perception system 210 shown includes one or more sensors capable of collecting environmental information about the area where the vehicle is located, such as information about parking lines and obstacles. For details, please refer to the description above; further details will not be repeated here.

[0185] Furthermore, the perception module 310 can process the collected environmental information to create a world model consisting of roads, obstacles, etc., for downstream modules (such as the human-computer interaction module 330 and the control module 320). The perception module 310 can send the collected and / or determined information to the control module 320.

[0186] The human-computer interaction module 330 may include Figure 2 One or more of the display devices 230 shown may include, for example, an HMI; the human-computer interaction module 330 may also include a sound-generating device (such as a speaker, audio jack, etc.) and a sound-receiving device (such as a microphone). The display module 340 may include... Figure 2 One or more of the display devices 230 shown are included, and the display module 340 can display the vehicle's infotainment interface. The human-machine interaction module 330 can receive user commands (including voice commands, touchscreen commands, etc.) and then control the changes of the interface displayed by the display module 340 according to the commands.

[0187] In some possible implementations, in response to user input, the human-machine interface module 330 can detect a command to start or stop the low-voltage load; the human-machine interface module 330 can transmit the command to the control module 320 so that the control module 320 can control the start or stop of the low-voltage load. The user input can be HMI-based touch input, voice input based on a radio device, or key input, etc., and this application embodiment does not specifically limit this.

[0188] The power supply system 350 is similar to the power supply system 240, as described above, and will not be repeated here.

[0189] In this embodiment, the control module 320 can control the power generation component to supply power to a low-voltage load; it can also control the storage battery and / or power battery to supply power to a low-voltage load. Furthermore, the control module 320 can also control the power generation component to charge the storage battery and / or power battery. For details, please refer to the description below; further details will not be provided here.

[0190] In some possible implementations, the control module 320 can also acquire sensor data from the sensing module 310; and can control the start and stop of low-voltage loads based on the sensor data, for example, when the sensor data indicates that the cabin temperature is greater than a certain threshold, the control module 320 controls the start of the vehicle air conditioner, etc. For details, please refer to the description below, which will not be elaborated here.

[0191] Understandable. Figure 2 and Figure 3 The architecture shown is merely an example. In some scenarios, intelligent driving devices and / or intelligent driving systems may include more or fewer modules or devices. For example, intelligent driving devices and / or intelligent driving systems may also include a communication module to facilitate communication with other devices (such as user terminals). This application does not specifically limit the scope of the embodiments described herein.

[0192] With the development of photovoltaic technology, it has been widely applied in electronic devices. In some types of electronic devices, photovoltaic panels and other components can be installed. These photovoltaic modules can absorb solar energy and convert it into electrical energy to power the electronic devices.

[0193] Taking the application of photovoltaic modules in vehicles as an example, in one embodiment, the output power of the photovoltaic modules can be reused by the vehicle's OBC circuit to charge the power battery.

[0194] like Figure 4 As shown, the power generated by the photovoltaic module, after being processed by the OBC circuit, can be input into the power battery to charge it. For example, the OBC circuit includes a PFC circuit and a first-stage LLC circuit. The first-stage LLC circuit can be used to perform boost processing, adjusting the output voltage of the photovoltaic module to the rated voltage of the power battery.

[0195] When a vehicle starts under low-voltage load conditions, the output power of the power battery is stepped down by the second-stage LLC circuit and then input to the low-voltage load to supply power. The second-stage LLC circuit converts the voltage of the power battery output power to the rated voltage of the low-voltage load, thereby supplying power to the low-voltage load. The first-stage LLC circuit and the second-stage LLC circuit can be understood as different DC-DC circuits.

[0196] However, this approach has the following problems:

[0197] Question 1: The photovoltaic modules reuse the vehicle's OBC circuit when charging the power battery via a charging station (e.g., ...). Figure 1 As shown in the figure, the OBC circuit needs to transmit the output power of the charging pile to the power battery. At this time, the power battery cannot be charged through the photovoltaic module, which limits the application scenarios.

[0198] Question 2: The OBC circuit itself is designed for charging piles to charge vehicles, and it is difficult to adapt to the dynamic fluctuations in the output power of photovoltaic modules, resulting in large energy loss.

[0199] Question 3: The output power of the photovoltaic (PV) modules needs to first charge the power battery; then the power battery supplies power to the low-voltage load. During this process, there are significant voltage differences between the PV modules and the power battery, and between the power battery and the low-voltage load. The output power of the PV modules needs to be processed by multiple circuits, such as the boost processing of the first-stage LLC circuit and the buck processing of the second-stage LLC circuit, before it can supply power to the low-voltage load. This results in significant energy loss and low energy utilization.

[0200] In view of this, embodiments of this application provide a power supply system and a power supply method. Combined with... Figure 5 The power supply system 500 includes: a control device, a storage battery, photovoltaic modules, and a power battery.

[0201] When the output power of the photovoltaic (PV) module exceeds the sum of the rated power of one or more load devices, the control device controls the PV module to supply power to the load devices. Simultaneously, the control device also controls the PV module to charge the storage battery and / or power battery. That is, when there is sufficient sunlight and the PV module has a large output power, it can not only supply power to low-voltage loads but also input the surplus power into the storage battery and / or power battery. The PV module's power generation, after a first processing step, is converted into output power with a voltage equal to the rated voltage of the load device, thus directly supplying power to the load device. This eliminates the need for a second processing step: first, processing the PV module's power generation to charge the power battery, and then processing the power battery's output power to convert its voltage to the rated power of the load device before supplying power. This significantly improves the utilization rate of the PV module's power generation.

[0202] Furthermore, when the output power of the photovoltaic modules is less than the sum of the rated power of one or more load devices, the control device can control the output power of the photovoltaic modules to supply power to one or more load devices. This can improve passenger comfort while reducing the charging and discharging stress of the power battery and extending its lifespan.

[0203] Furthermore, combined Figure 5The output power of photovoltaic modules does not need to first charge the power battery before the power battery supplies power to the low-voltage load, which can reduce energy loss and improve energy utilization.

[0204] Furthermore, the photovoltaic modules and the power battery can be connected without an OBC circuit, meaning the photovoltaic modules can charge the power battery without reusing the OBC circuit. In scenarios where the vehicle is charging at a charging station, the power battery can also be charged simultaneously through the photovoltaic modules. This broadens the application scenarios, allowing for efficient utilization of the photovoltaic module's output power in various situations.

[0205] The power supply system and power supply method of this application will now be described in detail with reference to the accompanying drawings. The specific form and quantity of each device shown are merely examples and should not be construed as limiting the implementation of the method provided in this application.

[0206] It is understood that the power supply system and power supply method can be applied to vehicles, as well as other electronic devices, such as intelligent transportation equipment, drones, robots, etc., and the embodiments of this application do not specifically limit them.

[0207] To facilitate understanding of the methods provided in the embodiments of this application, the power supply system will first be described in detail.

[0208] like Figure 5 As shown, the power supply system includes: a control device, photovoltaic modules, and an energy storage device (batteries and / or power batteries).

[0209] The photovoltaic modules are connected to both the energy storage device and the load device. Taking a vehicle as an example, the energy storage device may include a battery and / or a power battery. The following description uses a battery and a power battery as examples. In the case of other electronic devices, the battery and the power battery may be replaced with other types of energy storage devices.

[0210] The control device can be used to: when the output power of the photovoltaic module is greater than the first load power, control the output power of the photovoltaic module to perform power distribution and output a first output power and a second output power, and control the first output power to supply power to the load device; and control the second output power to charge the energy storage device.

[0211] The first load power is the sum of the rated power of one or more load devices. These one or more load devices can be all load devices, operating load devices, all load devices that can be directly powered by photovoltaic modules, or operating load devices that can be directly powered by photovoltaic modules.

[0212] It should be noted that photovoltaic modules can directly supply power, meaning that the power generation of photovoltaic modules, after processing, has the output power of the rated voltage of the load device, and can directly supply power to the load device without first charging the power battery and then using the output power of the power battery to supply power to the load device.

[0213] The control device can also be used to: control the output power of the photovoltaic module to supply power to the load device when the output power of the photovoltaic module is less than or equal to the first load power. Optionally, the control device can also control the storage battery and / or power battery to supply power to the load device.

[0214] In other words, when the output power of the photovoltaic modules cannot support the operation of the load equipment, the storage battery and / or power battery can be controlled to supply power to the load equipment so that the load equipment can operate smoothly.

[0215] It is understood that in this embodiment, when the output power of the photovoltaic module is sufficient to power the load device, the photovoltaic module can power the load device alone. When the output power of the photovoltaic module is insufficient to power the load device, the photovoltaic module and the energy storage device jointly power the load device. When the load device and the photovoltaic module are connected through a first power conversion device, the photovoltaic module can directly power the load device. The load device may include: devices directly powered by the photovoltaic module and / or devices that cannot be directly powered by the photovoltaic module. The control device selects some or all of the load devices from the load devices according to pre-configured rules to calculate the first load power.

[0216] In this context, devices that cannot be directly powered by photovoltaic modules can also be understood as load devices that can be indirectly powered by photovoltaic modules. Indirectly powering load devices means that the output power of photovoltaic modules cannot be directly input to the load device, but needs to first charge the power battery or storage battery, and then the power battery or storage battery supplies power to it.

[0217] Furthermore, the power supply system may also include: a first power conversion device and a second power conversion device.

[0218] like Figure 6 As shown, exemplarily, the first power conversion device can be an MPPT circuit, or other circuits or devices, as long as they can convert the power generated by the photovoltaic module into the output power of the photovoltaic module capable of supplying power to the load device; the second power conversion device can be a bidirectional DC-DC circuit, or other circuits or devices, as long as they can convert the output power of the power battery into a third output power capable of supplying power to the load device or convert the output power of the photovoltaic module into a fourth output power capable of charging the power battery. In this embodiment, the first power conversion device is an MPPT circuit and the second power conversion device is a bidirectional DC-DC circuit as an example for description.

[0219] The photovoltaic (PV) modules are connected to the battery and load devices respectively via MPPT circuits. The load devices connected to the MPPT circuits can be all or part of an electronic load device, and these load devices must be devices that can directly power the PV modules. The power battery is connected to the MPPT circuit via a bidirectional DC-DC converter, and then to the PV modules. In other words, the PV modules are connected to the battery, power battery, and load devices respectively via MPPT circuits, allowing the output power of the PV modules to flow to the battery, power battery, and load devices.

[0220] In addition, the control device is connected to the MPPT circuit, the bidirectional DC-DC circuit, and the battery. This allows the control device to control the direction and distribution of the photovoltaic module's output power through the MPPT circuit, and to control the current flow of the power battery through the bidirectional DC-DC circuit.

[0221] The MPPT circuit can be used to detect the output power of the photovoltaic module. The control device can then be used to obtain the output power of the photovoltaic module from the MPPT circuit. Furthermore, the control device can be used to obtain a first load power, which is the sum of the rated power of one or more load devices, the selection rules for which one or more load devices can be pre-configured. The control device can obtain the rated power of each of the one or more load devices according to the pre-configured selection rules, and calculate the first load power by summing them.

[0222] After obtaining the output power of the photovoltaic module and the first load power, the control device can determine whether the output power of the photovoltaic module is greater than the first load power.

[0223] In the first case, the output power of the photovoltaic module is greater than the first load power, and the control device can perform the following operations.

[0224] The control device can be used to: distribute the output power of the photovoltaic module through the MPPT circuit and output a first output power and a second output power. The first output power supplies power to the load device, which is a load device that can be directly powered by the photovoltaic device; the second output power charges the storage battery and / or the power battery.

[0225] It is understood that in the embodiments of this application, the MPPT circuit may have a power distribution function. For example, the MPPT circuit includes a DC-DC power distribution topology circuit. This allows the control device to distribute the output power of the photovoltaic module into two parts: a first output power and a second output power. This allows the control device to control the first output power to supply power to the load device, and the second output power to charge the battery and / or the power battery.

[0226] As an example and not a limitation, the control device may send a power distribution command to the MPPT circuit. This command instructs the first output power to supply power to the load device. It can be understood that the load device supplied by the first output power is a running load device that can be directly powered by the photovoltaic device. That is, the first output power is the sum of the rated power of the running load devices that can be powered by the photovoltaic device. The command also instructs the second output power to charge the storage battery and / or the power battery. It can be understood that the second output power is the output power of the photovoltaic module excluding the first output power. Based on this command, the MPPT circuit controls the first output power to supply power to the load device and controls the second output power to charge the storage battery and / or the power battery.

[0227] In some possible scenarios, such as Figure 7 As shown, the control device controls the photovoltaic module to output a first power to power the load device, and a second power to charge the power battery, as detailed below.

[0228] Based on the above, the MPPT circuit has a power distribution function. Therefore, the control device can be used to: distribute the output power of the photovoltaic module through the MPPT circuit and output a first output power and a second output power. The first output power supplies power to the load device, and the second output power charges the battery. Alternatively, it can be understood that the control device uses the MPPT circuit to prevent the output power of the photovoltaic module from being input to the battery, or to control the output power of the photovoltaic module to be zero when input to the battery.

[0229] It is understandable that a bidirectional DC-DC circuit can be used to control the direction of current (or power) flow. For example, it can control the power flow from the MPPT circuit to the power battery to charge it.

[0230] Based on the bidirectional DC-DC circuit, the control device can be used to control the flow of the second output power to the power battery through the bidirectional DC-DC circuit, so that the second output power output by the photovoltaic module can charge the power battery.

[0231] Furthermore, it can be understood that the voltage value of the second output power output by the MPPT can be the rated voltage of the battery and / or the load device, i.e., the first voltage. The rated voltage of the power battery is the second voltage, which differs from the first voltage; for example, the second voltage is greater than the first voltage. Therefore, the control device is also used to control the bidirectional DC-DC converter to perform voltage conversion on the second output power, outputting a fourth output power, and charging the power battery through the fourth output power. The voltage of the fourth output power is the second voltage.

[0232] It should be understood that this description uses a storage battery and a power battery as examples. The bidirectional DC-DC circuit described above can perform voltage conversion on the second output power to obtain a fourth output power. In some possible scenarios, if the second voltage is less than the first voltage, the bidirectional DC-DC circuit can perform voltage conversion on the second output power to obtain a fourth output power. This application does not specifically limit this aspect.

[0233] In other possible scenarios, such as Figure 8 As shown, the control device controls the first output power of the photovoltaic module to supply power to the load equipment, and the second output power to charge the battery, as detailed below.

[0234] Based on the above, the MPPT circuit has a power distribution function. Therefore, the control device can be used to: distribute the output power of the photovoltaic module through the MPPT circuit and output a first output power and a second output power. The first output power supplies power to the load device, and the second output power charges the battery. Alternatively, it can be understood that the control device also uses the MPPT circuit to prevent the output power of the photovoltaic module from being input to the power battery, or to control the power input to the power battery from the output power of the photovoltaic module to be 0.

[0235] In the second case, if the output power of the photovoltaic module is less than or equal to the first load power, the control device can perform the following operations.

[0236] The control device is used to: control the output power of the photovoltaic modules to supply power to the load equipment via the MPPT circuit. Furthermore, since the output power of the photovoltaic modules may be insufficient to support the operation of the load equipment, the control device may optionally also control the storage battery and / or power battery to supply power to the load equipment.

[0237] In some possible scenarios, such as Figure 9 As shown, the control device controls the storage battery and photovoltaic modules to supply power to the load equipment.

[0238] For example, the control device is configured to: send instruction 1 to the battery, instruction 1 instructing the battery to supply power to the load device; then the battery is configured to: supply power to the load device based on instruction 1. For example, the battery outputs a fifth output power, the fifth output power supplies power to the load device, and the voltage of the fifth output power is the first voltage. The sum of the fifth output power and the output power of the photovoltaic module is greater than or equal to the sum of the rated power of the load device.

[0239] The control device can control the output power of the photovoltaic modules to power the load equipment via the MPPT circuit. Alternatively, the control device can instruct the MPPT circuit to allocate zero power to the storage battery and the mains battery.

[0240] In this scenario, both photovoltaic modules and batteries supply power to the load equipment to support its stable operation.

[0241] In other possible scenarios, such as Figure 10 As shown, the control device controls the power battery and photovoltaic modules to supply power to the load equipment.

[0242] For example, the control device can be used to control the output power of the power battery to flow to the load device through a bidirectional DC-DC circuit, that is, to control the power battery to supply power to the load device.

[0243] The control device is also used to: convert the output power of the power battery into a third output power through a bidirectional DC-DC circuit, the voltage of the third output power being the first voltage, i.e. the rated voltage of the load device; and to supply power to the load device through the third output power.

[0244] For example, the control device uses a bidirectional DC-DC circuit to perform voltage conversion on the output power of the power battery, such as step-down processing, to obtain a third output power.

[0245] In addition, the control device is also used to: control the output power of the photovoltaic modules to supply power to the load equipment via the MPPT circuit.

[0246] In this scenario, both the photovoltaic modules and the power batteries supply power to the load device to support its stable operation. For example, the sum of the output power of the photovoltaic modules and the third output power is greater than or equal to the sum of the rated power of the load device.

[0247] It should be understood that Figure 10 For illustrative purposes only, in real-world applications, the output power of a power battery can be used not only to power load devices but also to power other devices, such as powering a power system. This application does not specifically limit this aspect.

[0248] Based on the above embodiments, it can be understood that the MPPT circuit can be a boost MPPT circuit, a buck MPPT circuit, or a buck-boost MPPT circuit. Alternatively, with technological advancements, the MPPT circuit can also be other types of circuits, and this application does not specifically limit this.

[0249] For example, when the rated voltage (i.e., the first voltage) of the battery and / or load equipment is relatively large, such as the first voltage being greater than the voltage value of the photovoltaic module's power generation, for example, 24V, the MPPT circuit can be a boost-type MPPT circuit or a buck-boost-type MPPT circuit, so that the power generation of the photovoltaic module can be boosted through the MPPT circuit, so that the voltage value of the output power after processing by the MPPT circuit is the first voltage, such as 24V.

[0250] When the first voltage is relatively low, such as less than the voltage value of the photovoltaic module's power generation, for example, 12V, the MPPT circuit can be a buck MPPT circuit or a buck-boost MPPT circuit, so that the power generation of the photovoltaic module can be stepped down through the MPPT circuit, so that the voltage value of the output power after processing by the MPPT circuit is the first voltage, such as 12V.

[0251] It should be understood that in some possible scenarios, such as when the voltage value of the photovoltaic module's power generation is equal to the first voltage, the MPPT circuit can be replaced by other circuits with power distribution functions. Furthermore, these other circuits may not have boost or buck functions. This application does not specifically limit this aspect.

[0252] Based on the power supply system described above, the power supply method implemented by the control device will be described in detail below.

[0253] It is understood that the control device can be the electronic device itself, or a chip, chip system, or processor within the electronic device capable of implementing the power supply method, or a logic module or software capable of implementing all or part of the functions of the electronic device. The electronic device can be a vehicle, or a robot, drone, or other similar device. Taking the application of the power supply system and method to a vehicle as an example, the control device can be the vehicle itself, or a device within the vehicle. For example, the control device can be a central controller, such as a vehicle controller or battery management system, or a controller newly installed in the vehicle to implement the power supply method provided in this application embodiment. This application embodiment does not specifically limit the control device.

[0254] Figure 11 This is a schematic flowchart of the power supply method 1100 provided in an embodiment of this application. Figure 11 As shown, method 1100 includes the following steps:

[0255] S1101, The control device obtains the output power of the photovoltaic module and the first load power, wherein the first load power is the sum of the rated power of one or more load devices, and the rated voltage of the load device is the first voltage.

[0256] It should be understood that the explanations of the first load power, output power, load device, and one or more load devices can be found in the description above, and will not be repeated here.

[0257] Optionally, taking a vehicle as an example, the load device may include, but is not limited to, a first comfort load and a controller for the first comfort load. The first comfort load may be some or all of the comfort loads in the vehicle. For example, in-vehicle air conditioning, in-vehicle refrigerator, steering wheel heating, seat heating, etc. The photovoltaic module can be directly connected to the controller of the first comfort load through an MPPT circuit; it can also be connected to the first comfort load through a distribution box. This application embodiment does not specifically limit the number and type of load devices.

[0258] Based on the output power and the first load power, the control device can determine whether the output power is greater than the first load power.

[0259] S1102. When the output power of the power generation module is greater than the first load power, the output power of the photovoltaic module is controlled to distribute the power and output the first output power and the second output power. The first output power is controlled to supply power to the load device, and the second output power is controlled to charge the energy storage device.

[0260] In this context, "output power greater than the first load power" means that the output power of the photovoltaic module can not only power one or more load devices, but also has some power surplus.

[0261] Therefore, the control device can allocate the output power of the photovoltaic module, dividing it into a first output power and a second output power. The first output power supplies power to the load device, while the second output power charges the energy storage device, thereby achieving the goal of fully utilizing the output power of the photovoltaic module and improving energy efficiency. In other words, when the output power of the photovoltaic module is sufficient to power the load device, it is used directly to supply power. When the output power of the photovoltaic module is insufficient to power the load device, electrical energy from other energy storage devices, such as batteries or power batteries, is used to supply power.

[0262] It is understood that the sum of the first output power and the second output power can be equal to the output power of the photovoltaic module. Alternatively, in practical applications, there may be some energy loss, causing the sum of the first output power and the second output power to be slightly less than the output power of the photovoltaic module. This application does not impose specific limitations on this.

[0263] In one possible implementation, S1102 is carried out in the following manner: the control device controls the MPPT circuit to distribute the output power of the photovoltaic module, outputting a first output power and a second output power. Furthermore, the control device also controls the first output power to supply power to the load device and controls the second output power to charge the energy storage device via the MPPT circuit.

[0264] The voltage of the first output power and the voltage of the second output power are collectively referred to as the first voltage. That is, the voltage value of the output power after processing by the MPPT circuit is equal to the rated voltage of the load device.

[0265] In one possible implementation, the energy storage device includes a power battery and a storage battery. The storage battery has a rated voltage of a first voltage, and the power battery has a rated voltage of a second voltage.

[0266] Optionally, controlling the second output power to charge the battery can be implemented in the following way: controlling the MPPT circuit to charge the battery through the second output power, where the voltage of the second output power is the rated voltage of the battery. That is, since the voltage of the second output power output after processing by the MPPT circuit is the rated voltage of the battery, the second output power can be directly input to the battery to charge it.

[0267] Furthermore, since the rated voltage of the power battery is greater than that of the storage battery, controlling the second output power to charge the power battery can be implemented in the following way: controlling the bidirectional DC-DC circuit to convert the voltage of the second output power to output a fourth output power, and using the fourth output power to charge the power battery. The voltage of the fourth output power is the rated voltage of the power battery, i.e., the second voltage.

[0268] It is understandable that the control device allocates a second output power from the photovoltaic module's output power to charge the power battery via the MPPT circuit. Since the voltage of the output power processed by the MPPT circuit is the battery's rated voltage, which is lower than the power battery's rated voltage, the second output power needs to be boosted via a bidirectional DC-DC circuit before charging the power battery.

[0269] In addition, the control device also controls the current flow to the power battery through a bidirectional DC-DC circuit, that is, controls the second output power output from the MPPT to flow to the power battery.

[0270] For example, the control device can send a current direction control command to the bidirectional DC-DC circuit, which instructs the current to flow to the power battery; so that the bidirectional DC-DC circuit controls the current to flow to the power battery based on the command.

[0271] Based on the above embodiments, optionally, the load device can be a load device that can be directly powered by the photovoltaic module. In this way, the photovoltaic module directly powers the load device, which reduces energy loss and improves energy utilization compared to first charging the energy storage device and then having the energy storage device power the load device.

[0272] S1103. When the output power of the photovoltaic module is less than or equal to the first load power, control the output power of the photovoltaic module to supply power to the load device.

[0273] For example, the control device uses the MPPT circuit to control the output power of the photovoltaic module to supply power to the load equipment.

[0274] Optionally, S1103 includes: when the output power is less than the first load power, controlling the output power of the photovoltaic module to supply power to the load device, and controlling the energy storage device to supply power to the load device. Alternatively, when the output power is equal to the first load power, controlling the output power of the photovoltaic module to supply power to the load device.

[0275] When the output power is less than the first load power, it means that the output power of the photovoltaic module may not be sufficient to power the load device. In this case, the output power of the energy storage device can be used to power the load device to support its operation. When the output power is equal to the first load power, it means that the output power of the photovoltaic module may be sufficient to power the load device, and the energy storage device can be used to power the load device.

[0276] In other words, prioritizing the use of photovoltaic modules' output power to supply power to the load equipment reduces the charging and discharging stress on the storage and power batteries, thus helping to extend their lifespan. Furthermore, to ensure the operation of the load equipment, the output power of other energy storage devices can also be used to supply power.

[0277] This power supply method allows the control device to dynamically adjust the power supply strategy based on the output power of the photovoltaic modules and the initial load power, maximizing energy utilization. Furthermore, prioritizing power supply to the load devices via the photovoltaic modules reduces the load devices' reliance on the power battery, lowers the battery's discharge stress, and significantly extends the battery's range. Under sufficient sunlight, the photovoltaic modules can not only power the load devices but also charge the power battery and / or storage battery, effectively improving energy efficiency.

[0278] In one scenario, one or more load devices may be running load devices.

[0279] The first load power is the sum of the rated power of the load devices in operation. For example, when the seat heating device and the vehicle air conditioner are in operation, the first load power is the sum of the rated power of the seat heating device and the vehicle air conditioner. The seat heating device and the vehicle air conditioner are one or more load devices.

[0280] In another scenario, one or more load devices are all the load devices in the electronic device, regardless of the current operating state of the load devices.

[0281] In other words, the first load power acquired by the control device is the sum of the rated power of all load devices that the photovoltaic module can directly or indirectly power, regardless of the operating status of the load devices. For example, load devices in a vehicle include a car refrigerator, seat heating, steering wheel heating, and car air conditioning. Whether these load devices are in operation or not, the first load power acquired by the control device is the sum of the rated power of these load devices.

[0282] In another scenario, one or more load devices can be all load devices that the photovoltaic modules can directly power.

[0283] For example, if a photovoltaic module is connected to a vehicle refrigerator, vehicle air conditioner, seat heating device, and steering wheel heating device via an MPPT circuit, then one or more load devices are the vehicle refrigerator, vehicle air conditioner, seat heating device, and steering wheel heating device, regardless of the operating status of these devices.

[0284] In another scenario, one or more load devices can be load devices that are directly powered by the photovoltaic modules and are in operation.

[0285] For example, if a photovoltaic module is connected to a vehicle refrigerator, vehicle air conditioner, seat heating device, and steering wheel heating device via an MPPT circuit, and the vehicle refrigerator and vehicle air conditioner are in operation, then one or more load devices are the vehicle refrigerator and vehicle air conditioner, excluding the seat heating device and steering wheel heating device.

[0286] Optionally, method 1100 may further include: controlling the output power of the photovoltaic module to charge the energy storage device when the load devices are not operating.

[0287] The fact that none of the load devices are running means that none of the load devices that the photovoltaic modules can directly or indirectly power are started and do not require power. Since the load devices do not require power, the output power of the photovoltaic modules can be used to charge energy storage devices, such as batteries and / or power batteries in vehicles.

[0288] The following is a detailed explanation of how the control device controls the energy storage device to supply power to the load equipment.

[0289] Optionally, the control device controls the energy storage device to supply power to the load device, including: controlling the power battery to supply power to the load device when the electronic device is powered on; or, controlling the battery to supply power to the load device when the electronic device is powered off.

[0290] Among them, electronic devices can be vehicles or other devices.

[0291] Taking a vehicle as an example, when a vehicle is powered on, although both the storage battery and the power battery are capable of supplying power to low-voltage loads, the storage battery's cycle life is generally shorter than that of the power battery, and the storage battery's instantaneous discharge capacity is limited. Prolonged high-load discharge may cause voltage drops. In addition, if power is supplied through the storage battery, it must be charged by the power battery afterward, increasing the energy loss of the power battery charging the storage battery. Therefore, in scenarios where a vehicle is powered on, the output power of the power battery can be used to supply power to the load equipment.

[0292] In scenarios where the vehicle is powered off, the main positive and main negative contactors of the power battery are disconnected. If the high-voltage circuit were to be connected at this time, there might be a risk of leakage. Therefore, in scenarios where the vehicle is powered off, the output power of the battery can be used to power the load equipment.

[0293] Based on the above embodiments, optionally, controlling the power battery to supply power to the load device may include: the control device converts the output power of the power battery into a voltage and outputs a third output power, the voltage of the third output power being the first voltage; and supplying power to the load device through the third output power.

[0294] It can be understood that the output power of the power battery is the rated voltage of the power battery, that is, the second voltage. The second voltage is different from the first voltage. Therefore, the voltage conversion mentioned above can include converting the output power of the second voltage into the third output power of the first voltage.

[0295] For example, the control device uses a bidirectional DC-DC circuit to step down the output power of the power battery to obtain a third output power.

[0296] It is understandable that, on the one hand, the control device can control the current flow from the power battery to the load device through a bidirectional DC-DC circuit. On the other hand, since the output voltage of the power battery is higher than the rated voltage of the load device, the output voltage of the power battery needs to be stepped down to match the rated voltage of the operating load device.

[0297] It is understandable that if the rated voltage of the load device is the same as the rated voltage of the battery, then the rated voltage of one or more load devices can also be replaced by the rated voltage of the battery.

[0298] Optionally, in this embodiment, the bidirectional DC-DC converter can be a bidirectional isolated DC-DC circuit. Based on the bidirectional isolated DC-DC circuit, electrical isolation between the input and output sides can also be achieved, thereby improving system security.

[0299] The following section details the method for controlling the photovoltaic modules to charge the energy storage device when the output power exceeds the first load power.

[0300] As an optional embodiment, the energy storage device includes a power battery and a storage battery, and the control device controls the second output power to charge the storage battery and / or the power battery, which can be implemented in the following ways:

[0301] When the battery meets the first charging condition, the control device controls the second output power to charge the battery; or, when the battery does not meet the first charging condition, the control device controls the second output power to charge the power battery.

[0302] The first charging condition includes the battery charge being less than or equal to a first threshold.

[0303] It should be understood that the first threshold can be a preset battery level threshold, such as 100%, or a value close to 100%, such as 90%, 95%, etc. A battery level below the first threshold means that the current battery level is low and needs charging; a battery level greater than or equal to the first threshold means that the current battery level is high and does not need charging.

[0304] It's understandable that if electronic devices don't have photovoltaic modules, the main battery can charge the battery when its charge is insufficient. Therefore, if the second output power from the photovoltaic modules prioritizes charging the main battery, subsequent charging of the battery via the main battery might still be necessary, increasing energy loss during the charging process. Therefore, if the battery meets the first charging condition, the control device should prioritize using the second output power to charge the battery, improving energy utilization.

[0305] Optionally, the first charging condition may also include other conditions, such as: the battery temperature is within temperature range 1, and / or the battery is not in a fault state, etc.

[0306] Temperature range 1 can be a preset temperature range, representing the normal temperature range of the battery during charging. Charging the battery is safer when its temperature is within temperature range 1.

[0307] A battery fault condition can refer to an abnormal working state in which the battery cannot meet the charging and discharging requirements or safe operation requirements due to performance degradation, internal faults, or external anomalies.

[0308] For example, a battery fault condition may include, but is not limited to, the ratio of the current battery capacity to the rated capacity being less than a threshold of 1; and / or, structural damage to the battery, etc.

[0309] Threshold 1 can be a preset value between 0 and 1, such as 50% or 40%. Structural damage to the battery indicates that the battery is in a failed state, which may include, but is not limited to, the following: the positive and negative plates inside the battery are in direct contact due to plate deformation, loss of active material, or damage to the separator; electrolyte leakage; or the battery's internal resistance is greater than or equal to threshold 2. Threshold 2 can be a preset threshold, which is the normal threshold for the battery's internal resistance.

[0310] If the battery does not meet the first charging condition, it means that the battery is currently in a state where it cannot be charged. In this case, the photovoltaic module can be controlled to charge the power battery.

[0311] It is understandable that in some scenarios, such as when electronic devices (e.g., vehicles) are powered off, the charging circuit for photovoltaic modules to charge the power battery may be disconnected, preventing the photovoltaic modules from charging the power battery.

[0312] Therefore, when the electronic device is powered off, controlling the second output power to charge the power battery can be implemented in the following way:

[0313] The control device powers on the charging circuit of the power battery; and after the charging circuit of the power battery is powered on, it controls the second output power to charge the power battery.

[0314] The charging circuit of the power battery is used to connect the photovoltaic module and the power battery. It is the smallest unit for the photovoltaic module to charge the power battery, and may include a bidirectional DC-DC circuit. When the electronic device is powered off, the charging circuit of the power battery may not be closed. The control device can then control the charging circuit of the power battery to be powered on, for example, by sending command 2 to the charging circuit of the power battery or its controller. Command 2 is used to instruct the closing of the charging circuit of the power battery, or to instruct the charging circuit of the power battery to be powered on.

[0315] It is understood that in some scenarios, in addition to controlling the power-on of the charging circuit, the control device can also control the power-on of other components. This application does not specifically limit this aspect.

[0316] For example, the control device controls the electronic device to power on; and after the electronic device is powered on, it controls the second output power to charge the power battery.

[0317] Taking a vehicle as an example, the control device can control the vehicle to power on. When the vehicle is powered on, the charging circuit of the power battery is energized, allowing the photovoltaic modules to charge the power battery through this circuit. Furthermore, if the control device is not the vehicle controller, it can send command 3 to the vehicle controller, which instructs the vehicle to power on; the vehicle controller then controls the vehicle to power on based on command 3. Alternatively, if the control device is the vehicle controller, the vehicle controller can execute the vehicle power-on process.

[0318] Based on the above embodiments, before powering on the electronic device, the user may be asked to confirm whether they agree to powering on the electronic device. For example, before the control device controls the electronic device to power on, method 1100 further includes:

[0319] S01. The control device sends first information to the user terminal, the first information being used to request the electronic device to be powered on; correspondingly, the user terminal receives the first information from the control device.

[0320] S02. Based on the first information, the user terminal displays a first prompt, which is used to confirm with the user whether they agree to power on the electronic device.

[0321] S03. When the user terminal displays the first information, it receives the first user input, which is used to indicate consent to powering on the electronic device.

[0322] S04. The user terminal sends second information to the control device based on the first user input; correspondingly, the control device receives the second information from the user terminal, which is used to confirm that the electronic device is powered on. Then, the control device can control the electronic device to power on based on the second information.

[0323] The first information can be understood as information used to confirm with the user whether they agree to power on the electronic device; the second information can be understood as the user terminal's response to the first information based on the first user input. The user terminal can generate the second information if the user agrees to power on the electronic device.

[0324] It should be understood that the first user input can be, but is not limited to, any type of user input such as touch input, voice input, or key operation, and the embodiments of this application do not specifically limit it in this regard.

[0325] The first prompt can be, but is not limited to, information displayed in any form such as SMS, notification, bubble, card, or capsule. The first user input is the operation entered by the user based on the first prompt to confirm that the electronic device is powered on.

[0326] Optionally, if the user does not agree to powering on the electronic device, the user terminal can send a third message to the control device to refuse powering on the electronic device; correspondingly, the control device receives the third message from the user terminal. Based on the third message, the control device can control the output power of the photovoltaic module to supply power to the load device, and control the output power to be the sum of the rated power of the load device. That is, if the output power of the photovoltaic module is sufficient to support the operation of the load device and there is a surplus, the surplus output power can be released.

[0327] It is understandable that, in order to enable the load to operate stably, the control device can control the power input to the load device to be the sum of the rated power of the load device. For example, the control device can control the output power of the MPPT circuit to be the sum of the rated power of the load device.

[0328] It is understood that the user terminal can be any type of device, such as a user's mobile phone, tablet, smartwatch, etc. The primary information can be, but is not limited to, any type of information such as SMS messages, voice calls, and application notifications.

[0329] It is understandable that the control device sends the first information to the user terminal, which could be done through other modules, such as through the communication module in the vehicle.

[0330] In addition, in one scenario, the control device (or vehicle) can directly send the first information to the user terminal. For example, if the vehicle and the user terminal can communicate via wireless short-range communication technology or wired short-range communication technology, the communication module in the vehicle can send the first information to the user terminal via wireless short-range communication technology or wired short-range communication technology.

[0331] The wireless short-range communication technologies may include, but are not limited to, Bluetooth, Wi-Fi, near field communication (NFC), radio frequency identification (RFID), infrared communication, ZigBee, and long-range radio (LoRa). Wired communication technologies may include, but are not limited to, USB. This application does not specifically limit these technologies.

[0332] In another scenario, where communication between the vehicle and the user terminal cannot be achieved via wireless or wired short-range communication technologies (e.g., when the distance between the vehicle and the user terminal is relatively far), communication can be established through the cloud. For example, the control device sends first information to the cloud; the cloud receives the first information from the control device and forwards it to the user terminal.

[0333] Based on the above embodiments, optionally, the control device controls the second output power output by the photovoltaic module to charge the power battery, which can be implemented in the following ways:

[0334] When the power battery meets the second charging condition, the second output power of the photovoltaic module is controlled to charge the power battery; or, when the power battery does not meet the second charging condition, the output power of the photovoltaic module is controlled to supply power to the load device. For details, please refer to the description above.

[0335] The second charging condition includes: the electronic device is powered on, and the power battery charge is less than or equal to the second threshold.

[0336] The second threshold can be a preset battery level threshold, such as 100%, or a value close to 100%, such as 90% or 95%. The second threshold can be the same as or different from the first threshold.

[0337] If the battery charge is less than the second threshold, it means that the battery needs to be charged; if the battery charge is greater than or equal to the second threshold, it means that the battery does not need to be charged.

[0338] If the power battery does not meet the second condition, it indicates that the power battery has a high charge level and may be fully charged, so it does not need to be charged. In this case, the photovoltaic module neither charges the storage battery nor the power battery, and the output power of the photovoltaic module supplies power to the load equipment.

[0339] It is understood that the second charging condition may also include other conditions, such as: the temperature of the power battery is within temperature range 2; and / or, the power battery is not in a fault state, etc.

[0340] Temperature range 2 can be a preset temperature range. Temperature range 2 can be understood as the temperature range within which the power battery can be charged normally. This ensures a high level of safety when charging the power battery under the second charging condition.

[0341] A power battery's fault condition refers to an abnormal operating state where the battery cannot meet charging / discharging or safe operation requirements due to factors such as cell performance degradation, structural damage, abnormal thermal management, or electrical connection failures. The power battery's fault condition can be monitored in real time by the battery management system.

[0342] For example, the fault state of a power battery may include, but is not limited to, one or more of the following: the ratio of the current battery capacity to the rated capacity is lower than threshold 3; the internal resistance of the power battery cell is greater than or equal to threshold 4; the voltage difference between the power battery cells is greater than or equal to threshold 5; the positive and negative electrodes inside the cell are in direct contact; or the insulation resistance between the positive or negative electrode of the power battery and the vehicle chassis is lower than the safety threshold, etc.

[0343] Among them, threshold 3, threshold 4, threshold 5 and safety threshold can be preset values.

[0344] Based on the information above, the control strategies of the control device differ slightly between vehicle power-on and vehicle power-off scenarios. The power supply methods for these scenarios are explained below.

[0345] The following is combined Figure 12 The power supply method 1200 implemented by the control device when the vehicle is powered on is described in detail.

[0346] Figure 12 This is a schematic flowchart of the power supply method 1200 provided in an embodiment of this application. Figure 12 As shown, method 1200 includes the following steps:

[0347] S1201, The control device obtains the output power of the photovoltaic module and the first load power.

[0348] S1202, The control device determines whether the output power is greater than the first load power.

[0349] If the output power is greater than the first load power, the control device executes S1203-S1208.

[0350] S1203 The control device controls the output power of the photovoltaic module to perform power distribution and outputs the first output power and the second output power, and controls the first output power to supply power to the load equipment.

[0351] S1204. The control device determines whether the battery meets the first charging condition.

[0352] If the battery meets the first charging condition, the control device executes S1205 until the first charging condition is no longer met.

[0353] If the battery does not meet the first charging condition, the control device executes S1206.

[0354] S1205, The control device controls the second output power of the photovoltaic module to charge the battery.

[0355] Furthermore, the control device can continue executing S1204 until the battery no longer meets the first charging condition. For example, while charging the battery, the control device determines that the battery's charge level is greater than a first threshold. In this case, the control device can continue executing S1206.

[0356] S1206, The control device determines whether the power battery meets the second charging condition.

[0357] If the power battery meets the second charging condition, the control device executes S1207 until the second charging condition is no longer met.

[0358] If the power battery does not meet the second charging condition, the control device executes S1208.

[0359] S1207, The control device controls the second output power of the photovoltaic module to charge the power battery.

[0360] Furthermore, the control device can continue executing S1206 until the power battery no longer meets the second charging condition. For example, as the power battery is being charged, its charge level exceeds the second threshold. In this case, the control device can continue executing S1208.

[0361] S1208 The control device controls the output power of the photovoltaic module to charge the load device, and can control the output power to be the sum of the rated power of the load device.

[0362] In S1202, if it is determined that the output power is less than or equal to the first load power, the control device executes S1209-S1210.

[0363] S1209, The control device controls the output power of the photovoltaic module to supply power to the load equipment.

[0364] S1210, The control device controls the power battery to supply power to the load equipment.

[0365] S1210 is an optional step. For example, when the output power is equal to the first load power, S1210 may not be executed.

[0366] It should be understood that the specific implementation methods of each step in method 1200 can be referred to the description of method 1100 above, and will not be repeated here.

[0367] The following is combined Figure 13 The power supply method 1300 implemented by the control device when the vehicle is powered off is described in detail.

[0368] Figure 13 This is a schematic flowchart of the power supply method 1300 provided in an embodiment of this application. Figure 13As shown, the differences between method 1300 and method 1200 include: in S1311, the low-voltage load is powered by a battery; and S1306 also needs to be executed.

[0369] like Figure 13 As shown, method 1300 includes the following steps:

[0370] S1301, The control device obtains the output power of the photovoltaic module and the first load power.

[0371] S1302, The control device determines whether the output power is greater than the first load power.

[0372] If the output power is greater than the first load power, the control device executes S1303-S1309.

[0373] S1303 The control device controls the output power of the photovoltaic module to perform power distribution and outputs the first output power and the second output power, and controls the first output power to supply power to the load equipment.

[0374] S1304, The control device determines whether the battery meets the first charging condition.

[0375] If the battery meets the first charging condition, the control device executes S1305 until the first charging condition is no longer met.

[0376] If the battery does not meet the first charging condition, the control device executes S1306-S1309.

[0377] S1305, The control device controls the second output power of the photovoltaic module to charge the battery.

[0378] Furthermore, the control device can continue executing S1304 until it determines that the battery no longer meets the first charging condition. For example, as the battery is being charged, the battery's charge level exceeds the first threshold. In this case, the control device can continue executing S1306-S1309.

[0379] S1306. The control device controls the charging circuit of the power battery to be powered on. For example, it controls the power-on of electronic devices.

[0380] S1307, The control device determines whether the power battery meets the second charging condition.

[0381] If the power battery meets the second charging condition, the control device executes S1308 until the second charging condition is no longer met.

[0382] If the power battery does not meet the second charging condition, the control device executes S1309.

[0383] S1308, The control device controls the second output power of the photovoltaic module to charge the power battery.

[0384] Furthermore, the control device can continue executing S1307 until it determines that the power battery no longer meets the second charging condition. For example, as the power battery is being charged, the power battery's charge level exceeds the second threshold. In this case, the control device can continue executing S1309.

[0385] S1309, The control device controls the output power of the photovoltaic module to charge the load equipment.

[0386] At this time, even if the output power of the photovoltaic module is greater than the first load power, since neither the storage battery nor the power battery meets the charging conditions, the photovoltaic module only supplies power to the load device, and the power input to the load device can be the rated power of the load device.

[0387] In S1302, if it is determined that the output power is less than or equal to the first load power, the control device executes S1310-S1311.

[0388] S1310, The control device controls the output power of the photovoltaic module to supply power to the load equipment.

[0389] S1311, The control device controls the storage battery to supply power to the load equipment.

[0390] S1311 is an optional step. For example, if the output power is equal to the sum of the rated power of the load devices, S1311 may not be executed.

[0391] It should be understood that the specific implementation of each step in method 1300 can be found in the description of method 1100 above, and will not be repeated here.

[0392] It is understood that a load device powered by photovoltaic modules, or by a combination of photovoltaic modules and energy storage devices, is an operating load device among all load devices, or an operating load device to which photovoltaic modules can directly power. This load device can be started up in the following ways.

[0393] Method 1: The load device is started based on a user request.

[0394] For example, the load device is activated in response to user input, such as by the user activating the load device via a human-machine interface module. Alternatively, the load device is activated based on information from a user terminal instructing the user to activate the load device. That is, the user remotely activates the load device via a user terminal.

[0395] The user input can be, but is not limited to, any type of input such as touch input, voice input, keypad input, or knob input. Based on this user input, the controller of the load device can start the load device.

[0396] Method 2: Automatically start the load device.

[0397] For example, the load device is started based on a trigger condition. For instance, when the control device detects that the trigger condition is met, it sends instruction 4 to the controller of the load device, which instructs the load device to start; then the controller of the load device starts the load device based on instruction 4.

[0398] As an example rather than a limitation, the triggering conditions include one or more of the following.

[0399] Item 1: The cabin temperature is higher than the first temperature.

[0400] Item 2: The cabin temperature is lower than the second temperature.

[0401] Item 3: The air quality inside the cabin is below Level 1.

[0402] Item 4: The equipment temperature of the load device is greater than the third temperature.

[0403] Item 5: The equipment temperature of the load device is less than the fourth temperature.

[0404] Item 6: The cabin outside temperature is greater than the fifth temperature.

[0405] Item 7: The output power of the photovoltaic module is greater than the third threshold.

[0406] Item 8: Ambient light intensity is greater than or equal to the fourth threshold.

[0407] Item 9: The time interval between the current time and the start time of the scheduled trip is less than the first duration.

[0408] Among them, items 1 through 5 are related to the cabin environment.

[0409] The first temperature indicates that the cabin temperature is too low, so the vehicle's air conditioning or other equipment can be activated to raise the cabin temperature; the second temperature indicates that the cabin temperature is too high, so the vehicle's air conditioning or other equipment can be activated to lower the cabin temperature. The first and second temperatures can be preset values. For example, the cabin temperature can be determined using a temperature sensor within the cabin.

[0410] Item 3 indicates poor air quality inside the cabin, including, for example, oxygen levels below a certain threshold, particulate matter (PM2.5) levels above a certain threshold, and unpleasant odors inside the vehicle. Cabin air quality can be determined, for example, by environmental sensors installed within the cabin.

[0411] Item 4 indicates that the temperature of some or all of the load devices is too high. For example, if the temperature inside the car refrigerator is higher than the third temperature, the car refrigerator can be turned on to lower the temperature inside. The third temperature can be a preset value.

[0412] Item 5 indicates that the equipment temperature of the load device is too low. For example, if the temperature of the seat and steering wheel is lower than the fourth temperature, the seat heating device and steering wheel heating device can be activated to heat the seat and steering wheel. The fourth temperature can be a preset value.

[0413] For items 6 to 8, high cabin temperature, high output power, and high ambient light intensity all indicate that the current conditions for photovoltaic power generation are good. Therefore, in order to make full use of the output power of the photovoltaic modules, the load equipment can be started and the photovoltaic modules can be used to power these load equipment to improve the comfort of the vehicle.

[0414] The fifth temperature, third threshold, and fourth threshold can be preset values. The outside temperature can be determined by a temperature sensor located outside the cockpit. Ambient light intensity can be determined by a light sensor.

[0415] For item 9, a scheduled trip refers to a trip booked by the user. For example, a user can book a trip through an application installed on their terminal or in the vehicle. Before the start time of the scheduled trip, the vehicle can automatically activate the relevant equipment to improve comfort and enhance the user experience. For example, the vehicle's air conditioning, seat heating, steering wheel heating, and other equipment may automatically start before the start time of the scheduled trip.

[0416] The initial duration can be a preset duration, such as 20 minutes or 30 minutes. By activating the load device in advance before the scheduled trip, the cabin environment is already adjusted to a more comfortable state when the user uses the vehicle, such as adjusting the cabin temperature to a suitable range.

[0417] It is understood that the load device can be a preset load device. That is, the load device is activated every time the above triggering conditions are detected. Alternatively, the load device can be a load device determined in real time. For example, the air conditioning is activated when the cabin temperature is greater than 25°C.

[0418] For example, the car refrigerator can be activated when the temperature inside is detected to be higher than a third temperature; the driver's seat can be activated when the temperature is detected to be lower than a fourth temperature; and the steering wheel heater can be activated when the steering wheel temperature is detected to be lower than a fourth temperature. As another example, all load devices directly powered by the photovoltaic modules can be activated when the output power exceeds a fourth threshold.

[0419] In this way, low-voltage loads can be started based on real-time conditions, balancing power consumption for supplying low-voltage loads with user comfort.

[0420] This application also provides another power supply system and power supply method, as detailed below.

[0421] Figure 14 This is a schematic block diagram of a power supply system 1400 provided in an embodiment of this application. Figure 14 As shown, the power supply system 1400 includes:

[0422] The system includes a control device, photovoltaic modules, energy storage devices (such as power batteries and accumulators), and a switching module. Optionally, the system 1400 also includes a second power conversion device (such as a bidirectional DC-DC circuit) and a first power conversion device (such as an MPPT circuit).

[0423] The control device is connected to the bidirectional DC-DC circuit, the battery, the switching module, and the MPPT circuit. The photovoltaic modules are connected to the load equipment and the battery via the MPPT circuit. The power battery is connected to the photovoltaic modules via the bidirectional DC-DC circuit and the MPPT circuit. The power battery is connected to the switching module via the bidirectional DC-DC circuit, and the battery is also connected to the switching module.

[0424] The differences between power supply system 1400 and power supply system 600 include: In power supply system 1400, the photovoltaic modules are not connected to the battery and bidirectional DC-DC circuit separately via the MPPT circuit. That is, in power supply system 1400, the photovoltaic modules are used to supply power to the load equipment, not to charge the battery or the power battery.

[0425] Similar to the power supply system 600, the control device is used to: obtain the first load power; and can also obtain the output power of the photovoltaic module through the MPPT circuit.

[0426] The control device is used to control the output power of the photovoltaic modules to supply power to the load equipment. For example, the control device can control the switching module to a first state, such as an open state, so that the output power of the battery and / or power battery does not flow to the load equipment. That is, at this time, there is no need to supply power to the load equipment through the battery and / or power battery.

[0427] Furthermore, if the output power of the photovoltaic module is less than the first load power, the control device is also used to control the output power of the photovoltaic module to supply power to the load device; and to control the storage battery and / or power battery to supply power to the load device. For example, the control device is also used to control the switch module to be in a second state, such as a closed state, so that the output power of the storage battery and / or power battery can flow to the load device to supply power to the load device.

[0428] For example, when an electronic device (such as a vehicle) is powered on, the control device controls the power battery to supply power to the load device; when the vehicle is powered off, the control device controls the storage battery to supply power to the load device.

[0429] It is understood that the switching module in the power supply system 1400 is optional. That is, in some scenarios, the control device can also control whether the storage battery and / or power battery supplies power to the load device in other ways, and this application embodiment does not specifically limit this.

[0430] Based on the power supply system 1400, the control device can execute the power supply method 1500.

[0431] Figure 15 This is a schematic flowchart of the power supply method 1500 provided in an embodiment of this application. Figure 15 As shown, method 1500 includes the following steps:

[0432] S1501, The control device acquires the output power of the photovoltaic module and the first load power. The first load power is the sum of the rated power of one or more load devices, and the rated voltage of the load devices is the first voltage.

[0433] It should be understood that the implementation methods of S1501 and S1101 are similar, and can be referred to the description above, which will not be repeated here.

[0434] S1502, The control device controls the output power of the photovoltaic module to supply power to the load equipment.

[0435] For example, when the output power of the photovoltaic module is greater than or equal to the first load power, the control device controls the first switch to the first state, so that the energy storage device will not supply power to the load device.

[0436] It should be understood that the implementation of S1502 is similar to that of S1102, except that in S1502, the photovoltaic module does not charge the storage battery / power battery. For example, the control device can control the power input to the load device to be the sum of the rated power of the load device.

[0437] It is understandable that, similar to method 1100, in method 1500, the control device can also control the output power of the photovoltaic module to supply power to the load device through the MPPT circuit.

[0438] For example, the power output of the photovoltaic module can be boosted or bucked through the MPPT circuit so that the voltage value of the power input to the load device is the rated voltage of the load device, i.e., the first voltage.

[0439] S1503. When the output power of the photovoltaic module is less than the first load power, control the energy storage device (such as a battery and / or a power battery) to supply power to the load device.

[0440] In other words, when the output power of the photovoltaic module is less than the first load power, the control device controls both the photovoltaic module and the energy storage device to supply power to the load device.

[0441] For example, the control device uses the MPPT circuit to control the output power of the photovoltaic module to supply power to the load equipment.

[0442] For example, the control device controls the storage battery and / or power battery to supply power to the load equipment through a switching module, such as controlling the switching module to switch to a second state so that the storage battery and / or power battery supplies power to the load equipment.

[0443] Furthermore, based on the above embodiments, optionally, controlling the power battery to supply power to the load device may include: the control device controlling the output power of the power battery to flow to the load device through a bidirectional DC-DC circuit. The control device performs voltage conversion on the output power of the power battery through the bidirectional DC-DC circuit, outputting a third output power, the voltage of which is the rated voltage of the load device, i.e., the first voltage.

[0444] In one possible implementation, controlling the energy storage device to supply power to the load device includes:

[0445] When the electronic device is powered on, control the power battery to supply power to the load device; or, when the electronic device is powered off, control the storage battery to supply power to the load device.

[0446] It is understood that, similar to method 1100, the load device is started based on a user request; or, the load device is started based on the fulfillment of triggering conditions. The specific implementation method is similar to that in method 1100, and can be referred to the description above, which will not be repeated here.

[0447] In other words, the difference between method 1500 and method 1100 is that the photovoltaic module is not connected to the storage battery and the power battery through the MPPT circuit, and the photovoltaic module does not charge the storage battery and / or the power battery. The output power of the photovoltaic module is used to power the load equipment. The remaining implementation methods are similar, and can be found in the detailed description of method 1100, which will not be repeated here.

[0448] It is understandable that the aforementioned load devices can be comfort loads. In this way, by utilizing the output power of photovoltaic modules, vehicle comfort can be improved.

[0449] It should be noted that, in the embodiments of this application, all steps in the accompanying drawings are merely examples, and the order of the numbers of the methods described above does not imply the order of execution and should not constitute any limitation on the embodiments of this application. For example, in practical applications, the execution order of the steps shown in this application can be adjusted, and some steps can be added or removed; the embodiments of this application do not limit this.

[0450] The above text combined Figures 5 to 15 The power supply system and power supply method of the embodiments of this application are described in detail below. Figure 16 and Figure 17 This application describes in detail the control device according to embodiments of the present application. The control device includes modules or units for executing each part of the above embodiments. The modules or units shown may be software or hardware, or hardware, or a combination of software and hardware. The control device is only briefly illustrated below; for details of the implementation, please refer to the description of the foregoing method embodiments, which will not be repeated below.

[0451] Figure 16 This is a schematic block diagram of a control device 1600 provided in an embodiment of this application. Figure 16 As shown, the device 1600 includes a communication module 1601 and a processing module 1602.

[0452] The communication module 1601 can realize corresponding communication functions, such as interaction with other devices; and the communication module 1601 can also be called a communication interface, input / output interface, or communication unit, etc. The processing module 1602 can realize data processing functions.

[0453] In one possible implementation, the device 1600 is used to implement the steps performed by the control device in the above method embodiments.

[0454] The communication module 1601 is used to acquire the output power of the power generation component and the first load power, wherein the first load power is the sum of the rated power of one or more load devices. The rated voltage of the load device is the first voltage.

[0455] The processing module 1602 is used to, when the output power is greater than the first load power, control the output power of the power generation component to perform power distribution and output a first output power and a second output power, control the first output power to supply power to the load device, and control the second output power to charge the energy storage device; or, when the output power is less than or equal to the first load power, control the output power of the power generation component to supply power to the load device.

[0456] It is understood that the processing module 1602 can implement the corresponding steps through the communication module 1601. For example, the communication module 1601 can send instruction a to the MPPT circuit, so that the MPPT circuit can allocate the output power of the power generation component, so that the first output power supplies the load device and the second output power charges the energy storage device. Alternatively, the communication module 1601 can send instruction b to the MPPT circuit, so that the MPPT circuit allocates the output power of the power generation component to the load device, so that the output power of the power generation component supplies the load device.

[0457] Optionally, one or more load devices may be all load devices, operating load devices, all load devices that can be directly powered by the power generation components, or load devices that can be directly powered by the power generation components and are in operation.

[0458] Optionally, the processing module 1602 is used to control the energy storage device to supply power to the load device.

[0459] Optionally, the energy storage device includes a power battery or a storage battery, wherein the rated voltage of the storage battery is a first voltage and the rated voltage of the power battery is a second voltage; the processing module 1602 is used to control the power battery to supply power to the load device when the electronic device is powered on; or, when the electronic device is powered off, control the storage battery to supply power to the load device.

[0460] Optionally, the processing module 1602 is used to convert the output power of the power battery into a voltage and output a third output power, the voltage of which is the first voltage; and to supply power to the load device through the third output power.

[0461] Optionally, the energy storage device includes a power battery or a storage battery, wherein the rated voltage of the storage battery is a first voltage and the rated voltage of the power battery is a second voltage; the processing module 1602 is used to control a second output power to charge the storage battery when the storage battery meets a first charging condition; or, when the storage battery does not meet the first charging condition, control the second output power to charge the power battery. The first charging condition includes the storage battery's charge being less than or equal to a first threshold.

[0462] Optionally, the processing module 1602 is used to control the second output power to charge the power battery after the electronic device is powered on, in the case of the electronic device being powered off.

[0463] Optionally, the processing module 1602 is used to control the second output power to charge the power battery when the power battery meets the second charging conditions. The second charging conditions include: the electronic device is powered on, and the power battery's charge level is less than or equal to a second threshold.

[0464] Optionally, the load device is started based on a user request; or, the load device is started based on the fulfillment of trigger conditions.

[0465] Optionally, the triggering conditions include one or more of the following: the cabin temperature is greater than a first temperature; the cabin temperature is less than a second temperature; the cabin air quality is lower than a first level; the load device temperature is greater than a third temperature; the load device temperature is less than a fourth temperature; the cabin outside temperature is greater than a fifth temperature; the output power is greater than a third threshold; the ambient light intensity is greater than or equal to a fourth threshold; or, the time interval between the current time and the start time of the scheduled trip is less than a first duration.

[0466] Optionally, the processing module 1602 is used to control the first power conversion device to distribute the output power of the power generation component and output a first output power and a second output power; wherein the voltage of the first output power and the voltage of the second output power are the first voltage.

[0467] Optionally, the processing module 1602 is used to control the first power conversion device to charge the battery through the second output power; or to control the second power conversion device to perform voltage conversion on the second output power, output a fourth output power, and charge the power battery through the fourth output power, wherein the voltage of the fourth output power is the second voltage.

[0468] It should be understood that the device 1600 here is embodied in the form of a functional module. The term "module" here can refer to application-specific integrated circuits (ASICs), electronic circuits, processors (e.g., shared processors, proprietary processors, or group processors) and memory for executing one or more software or firmware programs, integrated logic circuits, and / or other suitable components supporting the described functionality. For example, when a module is implemented in the form of a processing element scheduler code, the processing element can be a general-purpose processor, such as a central processing unit (CPU), or other processors capable of calling program code, such as a controller. Furthermore, these modules can be integrated together and implemented as a System-on-a-Chip (SoC).

[0469] In an optional example, those skilled in the art will understand that the device 1600 may specifically be the control device in the above embodiments. The device 1600 may be used to execute the various processes and / or steps corresponding to the control device in the above method embodiments. To avoid repetition, it will not be described again here.

[0470] The aforementioned device 1600 has the function of implementing the corresponding steps executed by the control device in the aforementioned method; the aforementioned function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the aforementioned function. In embodiments of this application, Figure 16 The device 1600 in the text can also be a chip, such as a SOC.

[0471] Figure 17 A schematic block diagram of a control device 1700 provided in an embodiment of this application is shown. The device 1700 can be a chip system; or it can be an apparatus configured with a chip system to implement the methods shown in the above method embodiments. In this embodiment, the chip system can be composed of chips, or it can include chips and other discrete devices.

[0472] like Figure 17 As shown, the device 1700 may include a processor 1710, which can be used to execute computer programs or instructions in memory to perform the various steps and / or processes corresponding to the control device in the above method embodiments.

[0473] In one possible implementation, device 1700 further includes a communication interface 1720. The communication interface 1720 can be used to communicate with other devices via a transmission medium, thereby enabling device 1700 to communicate with other devices. The communication interface 1720 may be, for example, a transceiver, an input / output interface, a pin, a bus, a transceiver circuit, or a device capable of transmitting and receiving functions. Processor 1710 can utilize the communication interface 1720 to input and output data for executing the various steps and / or processes corresponding to the control device in the above method embodiments.

[0474] In one possible implementation, device 1700 further includes at least one memory 1730 for storing program instructions and / or data. Memory 1730 is coupled to processor 1710. The coupling in this embodiment is an indirect coupling or communication connection between devices, units, or modules, and can be electrical, mechanical, or other forms, for information exchange between devices, units, or modules. Processor 1710 may operate in conjunction with memory 1730. Processor 1710 may execute program instructions stored in memory 1730.

[0475] Optionally, the memory 1730 may be a memory disposed in the device 1700. Exemplarily, the memory 1730 may be integrated with the processor 1710; or, the memory 1730 may be disposed separately from the processor 1710.

[0476] Optionally, memory 1730 can be memory outside of device 1700. It may also be memory outside of device 1700.

[0477] This application provides an electronic device, which includes a processor and a memory; the memory stores computer execution instructions; the processor executes the computer execution instructions stored in the memory, causing the electronic device to perform the above-described method.

[0478] This application provides a chip. The chip includes a processor, which is used to call a computer program in memory to execute the technical solutions in the above embodiments. Its implementation principle and technical effects are similar to those in the related embodiments described above, and will not be repeated here.

[0479] This application provides a vehicle that includes the power supply system described in the above method embodiments to implement the above method embodiments.

[0480] This application provides a power supply system, which includes a control device, a storage battery, a power battery, an MPPT circuit, and a bidirectional DC-DC circuit. This system is used to implement methods 1100, 1200, or 1300 described above.

[0481] Alternatively, the system may include: a control device, a storage battery, a power battery, an MPPT circuit, a bidirectional DC-DC circuit, and a switching module. This system is used to implement method 1500 described above.

[0482] This application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program. When the computer program is executed by a processor, it implements the methods described above. The methods described in the above embodiments can be implemented wholly or partially by software, hardware, firmware, or any combination thereof. If implemented in software, the functionality can be stored as one or more instructions or code on or transmitted over the computer-readable medium. The computer-readable medium can include computer storage media and communication media, and can also include any medium that can transfer a computer program from one place to another. The storage medium can be any target medium accessible by a computer.

[0483] In one possible implementation, a computer-readable medium may include random access memory (RAM), read-only memory (ROM), compact disc read-only memory (CD-ROM) or other optical disc storage, magnetic disk storage or other magnetic storage devices, or any other medium intended to carry or store required program code in the form of instructions or data structures, and accessible by a computer. Furthermore, any connection is appropriately referred to as a computer-readable medium. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. As used herein, disks and optical discs include optical discs, laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs, where disks typically reproduce data magnetically, while optical discs optically reproduce data using lasers. Combinations of the above should also be included within the scope of computer-readable media.

[0484] This application provides a computer program product, which includes a computer program that, when run, causes a computer to perform the above-described method.

[0485] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0486] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application.

[0487] It is understood that, in the embodiments of this application, the order of the above-mentioned process numbers does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

Claims

1. A power supply method, characterized in that, The method includes: The output power of the power generation component and the first load power are obtained, wherein the first load power is the sum of the rated power of one or more load devices, and the rated voltage of the load devices is the first voltage; When the output power of the power generation component is greater than the first load power, the output power of the power generation component is controlled to distribute power and output a first output power and a second output power. The first output power is controlled to supply power to the load device, and the second output power is controlled to charge the energy storage device; or... When the output power of the power generation component is less than or equal to the first load power, the output power of the power generation component is controlled to supply power to the load device.

2. The method according to claim 1, characterized in that, The one or more load devices can be all load devices, running load devices, all load devices that can be directly powered by the power generation component, or running load devices that can be directly powered by the power generation component.

3. The method according to claim 1 or 2, characterized in that, When the output power is less than the first load power, the method further includes: Control the energy storage device to supply power to the load device.

4. The method according to claim 3, characterized in that, The energy storage device includes a power battery or a storage battery, wherein the rated voltage of the storage battery is the first voltage, and the rated voltage of the power battery is the second voltage. The control of the energy storage device to supply power to the load device includes: When the electronic device is powered on, the power battery is controlled to supply power to the load device; or, When the electronic device is powered off, the battery is controlled to supply power to the load device.

5. The method according to claim 4, characterized in that, The control of the power battery to supply power to the load device includes: The output power of the power battery is controlled to be converted into a third output power, the voltage of which is the first voltage; and the load device is powered by the third output power.

6. The method according to any one of claims 1 to 5, characterized in that, The energy storage device includes a power battery or a storage battery, wherein the rated voltage of the storage battery is the first voltage, and the rated voltage of the power battery is the second voltage. The control of the second output power to charge the energy storage device includes: When the battery meets the first charging condition, the second output power is controlled to charge the battery; or, If the battery does not meet the first charging condition, control the second output power to charge the power battery; The first charging condition includes the battery charge being less than or equal to a first threshold.

7. The method according to claim 6, characterized in that, The control of the second output power to charge the power battery includes: When the electronic device is powered off, after the electronic device is powered on, the second output power is controlled to charge the power battery.

8. The method according to claim 6 or 7, characterized in that, The control of the second output power to charge the power battery includes: When the power battery meets the second charging condition, the second output power is controlled to charge the power battery. The second charging condition includes: the electronic device is powered on, and the power battery's charge is less than or equal to a second threshold.

9. The method according to any one of claims 1 to 8, characterized in that, The load device is started based on a user request; or, the load device is started based on the fulfillment of trigger conditions.

10. The method according to claim 9, characterized in that, The triggering conditions include one or more of the following: The cabin temperature is higher than the first temperature. The temperature inside the cabin is lower than the second temperature; The air quality inside the cabin is below Level 1. The temperature of the load device is greater than the third temperature. The temperature of the load device is lower than the fourth temperature. The outside temperature of the cabin is greater than the fifth temperature. The output power is greater than the third threshold; Ambient light intensity is greater than or equal to the fourth threshold; or, The time interval between the current moment and the start moment of the scheduled trip is less than the first duration.

11. The method according to any one of claims 1 to 10, characterized in that, The control of the power generation component involves power distribution to output a first output power and a second output power, including: The first power conversion device is controlled to distribute the output power of the power generation component, and output the first output power and the second output power; Wherein, the voltage of the first output power and the voltage of the second output power are the first voltage.

12. The method according to claim 11, characterized in that, The energy storage device includes a power battery and a storage battery, wherein the rated voltage of the storage battery is the first voltage and the rated voltage of the power battery is the second voltage. The control of the second output power to charge the energy storage device includes: Control the first power conversion device to charge the battery using the second output power; or... The second power conversion device is controlled to convert the second output power into a voltage, outputting a fourth output power, and charging the power battery through the fourth output power, wherein the voltage of the fourth output power is the second voltage.

13. A power supply system, characterized in that, The system includes: a control device, a power generation component, and an energy storage device; The control device is used to: acquire the output power of the power generation component and the first load power; when the output power of the power generation component is greater than the first load power, control the output power of the power generation component to perform power distribution and output the first output power and the second output power, control the first output power to supply power to the load device, and control the second output power to charge the energy storage device; or, when the output power is less than or equal to the first load power, control the output power of the power generation component to supply power to the load device. Wherein, the first load power is the sum of the rated power of one or more load devices, and the rated voltage of the load device is the first voltage.

14. The system according to claim 13, characterized in that, The system also includes a first power conversion device and a second power conversion device. The energy storage device includes a storage battery or a power battery. The rated voltage of the storage battery is the first voltage, and the rated voltage of the power battery is the second voltage. The power generation component is connected to the battery and the load device respectively through the first power conversion device; the power generation component is connected to the power battery through the first power conversion device and the second power conversion device; the second output power is output as the fourth output power through the second power conversion device; the voltage of the first output power and the second output power is the first voltage, and the voltage of the fourth output power is the second voltage.

15. A power supply method, characterized in that, The method includes: The output power of the power generation component and the first load power are obtained, wherein the first load power is the sum of the rated power of one or more load devices, and the rated voltage of the load devices is the first voltage; The output power of the power generation component is controlled to supply power to the load device; When the output power of the power generation component is less than the first load power, the energy storage device is controlled to supply power to the load device.

16. A power supply system, characterized in that, The system includes: a control device, a power generation component, and an energy storage device; The control device is used to: acquire the output power of the power generation component and the first load power; control the output power of the power generation component to supply power to the load device; and control the energy storage device to supply power to the load device when the output power is less than the first load power. Wherein, the first load power is the sum of the rated power of one or more load devices, and the rated voltage of the load device is the first voltage.

17. The system according to claim 16, characterized in that, The system also includes a first power conversion device, a second power conversion device, and a switching module. The energy storage device includes a storage battery or a power battery. The rated voltage of the storage battery is the first voltage, and the rated voltage of the power battery is the second voltage. The power generation component is connected to the load device via the first power conversion device; the storage battery is connected to the load device; the power battery is connected to the load device via the second power conversion device and the switching module; the output power of the power battery is output as a third output power via the second power conversion device, and the voltage of the output power and the third output power is the first voltage.

18. A control device, characterized in that, include: Used to perform the method as described in any one of claims 1 to 12 or 15.

19. An electronic device, characterized in that, Includes the power supply system described in claim 13, 14, 16 or 17.

20. A computer program product, characterized in that, The computer program product includes computer program code that, when run on an electronic device, causes the electronic device to perform the method as described in any one of claims 1 to 12 or 15.

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