Power supply system, power control method and related device

Abstract

A power supply system, a power control method and a related device relate to the technical field of vehicles. The power supply system comprises a power supply module and first electric equipment, and second electric equipment is a rear part of a vehicle; the power supply module is used for outputting first power and supplying power to the first electric equipment and the second electric equipment; the first electric equipment is used for acquiring first power; and the first electric equipment is also used for controlling the power of the first electric equipment according to the first power and the allowable power of the power supply module, so that the sum of the power of the first electric equipment and the power of the second electric equipment is smaller than or equal to the allowable power. By controlling the power of the first electric equipment, the sum of the power of the first electric equipment and the power of the second electric equipment is smaller than or equal to the allowable power of the power supply module, so that the over-current protection of the power supply module is prevented from being triggered as much as possible, and the working reliability of the first electric equipment and the second electric equipment is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to a power supply system, power control method, and related devices. Background Technology

[0002] With the continuous improvement of automotive intelligence and comfort, some vehicles are equipped with in-vehicle water dispensers to provide convenient drinking water for passengers. Currently, in-vehicle water dispensers share the same power supply circuit as other in-vehicle electrical equipment (such as induction cookers, computers, etc.). When used simultaneously, this increases the power consumption of the on-board charger (OBC), potentially triggering the OBC overcurrent protection and causing the relays on that power supply circuit to disconnect, rendering the in-vehicle electrical equipment unusable.

[0003] Therefore, a feasible solution is urgently needed to improve the reliability of in-vehicle electrical equipment. Summary of the Invention

[0004] This application provides a power supply system, a power control method, and related devices, which can improve the reliability of in-vehicle electrical equipment.

[0005] In a first aspect, embodiments of this application provide a power supply system, which includes: a power supply module and a first electrical device; the power supply module is used to output a first power to supply power to the first electrical device and a second electrical device; the first electrical device is used to acquire the first power; the first electrical device is also used to control the power of the first electrical device according to the first power and the allowable power of the power supply module, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power.

[0006] The power supply system can be a pre-installed component of the vehicle, with both the power supply module and the first electrical device being pre-installed components. The second electrical device is a retrofit component. Pre-installed components can monitor their own power in real time through integrated sensors and communicate with other pre-installed components of the vehicle through an integrated communication protocol. The power data of pre-installed components can typically be measured in real time. Retrofitted components lack integrated power measurement sensors and communication protocols, cannot monitor their own power in real time, and cannot communicate with pre-installed components. The power of retrofitted components cannot be measured in real time. The first power output by the power supply module can be allocated to the first and second electrical devices. The first power is the output power of the power supply module, which can be measured in real time by the power supply device and can change dynamically. The power of the first electrical device can also be measured in real time. Both the first electrical device and the power supply device are pre-installed components; the power of the first electrical device and the output power of the power supply device can be measured in real time. The second electrical device is a retrofit component, and its power cannot be measured in real time.

[0007] In this embodiment, when the power of the second electrical device cannot be measured in real time, the power of the first electrical device is controlled based on the first power and the allowable power of the power supply module. This control ensures that the sum of the power of the first and second electrical devices is less than or equal to the allowable power of the power supply module, thereby minimizing the triggering of the power supply module's overcurrent protection and improving the reliability of both devices. In this embodiment, the power of the second electrical device cannot be measured in real time, nor can it be controlled. By controlling the power of the first electrical device, the overcurrent protection of the power supply module is avoided, and the power output from the power supply module is preferentially allocated to the second electrical device.

[0008] In one possible implementation of the first aspect, the power supply module includes: an AC power supply module or a DC power supply module.

[0009] In this embodiment, when the power supply module includes an AC power supply module, the power supply module outputs AC power to supply power to the first and second electrical devices. In this case, both the first and second electrical devices are AC loads, and the power supply system is an AC architecture. When the power supply module includes a DC power supply module, the power supply module outputs DC power to supply power to the first and second electrical devices. In this case, both the first and second electrical devices are DC loads, and the power supply system is a DC architecture. The power supply system in this embodiment can be either an AC architecture or a DC architecture, enabling power control of the first electrical device under either an AC or DC architecture.

[0010] In one possible implementation of the first aspect, the AC power supply module includes: an on-board charger (OBC) and a power battery; OBC is used to convert the DC power output from the power battery into AC power, which is then used to power the first and second electrical devices. The OBC is also used to acquire first power and send the first power to the first electrical device, where the first power is the output power of the OBC.

[0011] In this embodiment, the OBC operates in discharge mode, converting the DC power from the power battery into AC power to supply AC loads. Both the first and second electrical devices are AC loads.

[0012] In one possible implementation of the first aspect, the power supply system further includes a first switching unit, and the power supply module is used to supply power to the first electrical device and the second electrical device through the first switching unit.

[0013] The first switching unit can be in a conducting or disconnected state. When the first switching unit is in a conducting state, the power supply module can supply power to the first and second electrical devices. When the first switching unit is in a disconnected state, the power supply module cannot supply power to the first and second electrical devices. When the output current of the power supply module exceeds the current threshold corresponding to the overcurrent protection, the first switching unit can be controlled to be in a disconnected state, thereby realizing the overcurrent protection of the power supply module. The current threshold corresponding to the overcurrent protection can be higher than the rated output current of the power supply module.

[0014] In one possible implementation of the first aspect, the power supply system further includes an electronic control unit (ECU), which is used to acquire the first power sent by the power supply module and to transmit the first power to the first electrical device.

[0015] The ECU has communication and control functions. The ECU can act as a gateway; for example, it can acquire the initial power from the power supply module and transmit that power to the first electrical device. The ECU can also control the first switching unit.

[0016] In one possible implementation of the first aspect, the first electrical device is further configured to control the power of the first electrical device according to the first power and the allowable power of the power supply module, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power, including: The first electrical device is also used to determine the state of the first electrical device and the second electrical device based on the power of the first electrical device and the first power; The first electrical device is also used to control the first electrical device to operate at a second power when the first electrical device is in a working state and the second electrical device is in a non-working state, wherein the second power is the rated power of the first electrical device; or, The first electrical device is also used to, when the first electrical device is in a non-operating state, the second electrical device is in an operating state, and a start command for the first electrical device is detected, control the first electrical device to operate at a third power or control the first electrical device to not operate, wherein the sum of the third power and the power of the second electrical device is less than or equal to the allowable power; or, The first electrical device is also used to reduce the power of the first electrical device when the first electrical device is in operation and the second electrical device switches from a non-operational state to an operation state, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power; or, The first electrical device is also used to adjust the power of the first electrical device when both the first electrical device and the second electrical device are in operation, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power.

[0017] The status of the first and second electrical devices can be determined based on the power of the first electrical device and the first power rating. If the power of the first electrical device and the first power rating are equal and not zero, it indicates that the first electrical device is in operation and the second electrical device is not in operation. If the power of the first electrical device and the first power rating are equal and zero, it indicates that both the first and second electrical devices are not in operation. If the first power rating is greater than the power of the first electrical device, and the power of the first electrical device is zero, it indicates that the first electrical device is not in operation and the second electrical device is in operation. If the first power rating is greater than the power of the first electrical device, and the power of the first electrical device is not zero, it indicates that both the first and second electrical devices are in operation.

[0018] In this embodiment, when the first electrical device is in a working state and the second electrical device is in a non-working state, the power supply module will not face the risk of overcurrent protection. At this time, the first electrical device can be controlled to operate at its rated power, allowing it to operate at a higher power to meet its power needs as much as possible. When the first electrical device is in a working state and the second electrical device switches from a non-working state to a working state, since the power of the second electrical device is unknown, in order to provide greater redundant power to the second electrical device, the first electrical device lowers its power so that the sum of its power and the power of the second electrical device is less than or equal to the allowable power of the power supply module, thereby minimizing the risk of triggering the power supply module's overcurrent protection. When the first electrical device is in a non-working state and the second electrical device is in a working state, if a start command for the first electrical device is detected, the first electrical device controls itself to operate at a third power or controls itself to be non-working. The sum of the third power and the power of the second electrical device is less than or equal to the allowable power of the power supply module, thereby minimizing the risk of triggering the power supply module's overcurrent protection. When both the first and second electrical devices are in operation, the power of the first electrical device is adjusted so that the sum of the power of the first and second electrical devices is less than or equal to the allowable power of the power supply module, thereby minimizing the triggering of the overcurrent protection of the power supply module.

[0019] In one possible implementation of the first aspect, the first electrical device is further configured to, when the first electrical device is in a non-operating state, the second electrical device is in an operating state, and a start command for the first electrical device is detected, control the first electrical device to operate at a third power or control the first electrical device to be non-operating, including: The first electrical device is further configured to, when the first electrical device is in a non-operating state, the second electrical device is in an operating state, a start command for the first electrical device is detected, and the difference between the allowable power and the first power is greater than or equal to the lower power limit of the first electrical device in the operating state, control the first electrical device to operate at a third power, wherein the sum of the third power and the power of the second electrical device is less than or equal to the allowable power; or, The first electrical device is also used to control the first electrical device to not work when the first electrical device is in a non-working state, the second electrical device is in a working state, a start command for the first electrical device is detected, and the difference between the allowable power and the first power is less than the lower limit of the power when the first electrical device is in a working state.

[0020] In this embodiment, the lower power limit of the first electrical device in the working state is the minimum power value at which the first electrical device can operate normally. When the first electrical device is in an inactive state and the second electrical device is in the working state, the first power is the power of the second electrical device. At this time, if a start command for the first electrical device is detected, and the difference between the allowable power of the power supply module and the first power is greater than or equal to the lower power limit, it indicates that the first electrical device can operate at a power greater than or equal to the lower power limit. In this case, the first electrical device can be controlled to operate at a third power. The third power is greater than or equal to the lower power limit, and the sum of the third power and the power of the second electrical device is less than or equal to the allowable power of the power supply module, thereby minimizing the risk of triggering the overcurrent protection of the power supply module. When the first electrical device is in an inactive state and the second electrical device is in the working state, the first power is the power of the second electrical device. At this point, if a start command for the first electrical device is detected, and the difference between the allowable power of the power supply module and the first power is less than the lower power limit, it indicates that the sum of the lower power limit and the first power is greater than the allowable power of the power supply module. Even if the first electrical device operates at the lower power limit, it may still trigger the overcurrent protection of the power supply module. In this case, the first electrical device can be controlled to not operate, thereby minimizing the risk of triggering the overcurrent protection of the power supply module.

[0021] In one possible implementation of the first aspect, the first electrical device is further configured to reduce the power of the first electrical device when the first electrical device is in an operating state and the second electrical device switches from an inactive state to an operating state, including: The first electrical device is also used to reduce the power of the first electrical device by a first value when the first electrical device is in working state and the second electrical device switches from a non-working state to a working state; the first value is positively correlated with the power of the second electrical device, and the power of the second electrical device is the difference between the first power and the power of the first electrical device.

[0022] In this embodiment, the greater the power of the second electrical device, the greater the first threshold, and the lower the adjusted power of the first electrical device, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power of the power supply module, thereby minimizing the triggering of the overcurrent protection of the power supply module.

[0023] In one possible implementation of the first aspect, the power of the first electrical device can be dynamically adjusted.

[0024] In this embodiment, the power of the first electrical device can be dynamically adjusted. By adjusting the power of the first electrical device, the sum of the power of the first electrical device and the power of the second electrical device can be less than or equal to the allowable power of the power supply module, thereby minimizing the triggering of the overcurrent protection of the power supply module.

[0025] In one possible implementation of the first aspect, the first electrical device includes: a vehicle-mounted water dispenser or a vehicle-mounted heating device.

[0026] In this embodiment, the power of the vehicle-mounted water dispenser or vehicle-mounted heating device can be dynamically adjusted, and the dynamic adjustment range is relatively large. For example, the power of the vehicle-mounted water dispenser can be dynamically adjusted from tens of watts to two kilowatts. Since the power of the vehicle-mounted water dispenser can be dynamically adjusted, the power of the vehicle-mounted water dispenser can be controlled so that the sum of the power of the vehicle-mounted water dispenser and the power of the second electrical device is less than or equal to the allowable power of the power supply module, thereby minimizing the triggering of the overcurrent protection of the power supply module and improving the reliability of the operation of the first and second electrical devices.

[0027] In one possible implementation of the first aspect, where the first electrical device includes a vehicle-mounted water dispenser, the vehicle-mounted water dispenser includes a controller, a heating module, a second switching unit, and a water dispensing module; the power supply module supplies power to the heating module through the second switching unit.

[0028] The controller is also used to keep the second switching unit in the off state in the event of a detected malfunction in the water outlet module.

[0029] In this embodiment, when the water dispensing module malfunctions (e.g., no water dispensing, blocked water outlet), the vehicle-mounted water dispenser cannot function properly. If the heating module is still running, the vehicle-mounted water dispenser will consume some power, potentially limiting the power of the second electrical device. At this time, the controller controls the second switching unit to be in the off state, preventing the vehicle-mounted water dispenser from consuming power from the power supply module. The power supply module then allocates power to the second electrical device as much as possible, thereby ensuring the reliability of the second electrical device's operation.

[0030] In one possible implementation of the first aspect, the water outlet speed of the water outlet module is positively correlated with the power of the first electrical device.

[0031] In this embodiment, the water dispensing speed of the water dispensing module of the vehicle-mounted water dispenser is positively correlated with the power of the vehicle-mounted water dispenser. This ensures the consistency of the water temperature of the water dispensing module when the vehicle-mounted water dispenser is operating at different power levels, avoids fluctuations in water temperature, and improves the user experience.

[0032] In one possible implementation of the first aspect, the second electrical device includes at least one electrical device.

[0033] In this embodiment, the number of electrical devices in the second electrical device can change in real time, and the power of the second electrical device can also change in real time. Since the power of the second electrical device cannot be measured in real time, the power of the first electrical device can be adjusted so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power of the power supply module, thereby minimizing the triggering of the overcurrent protection of the power supply module and improving the reliability of the operation of the first and second electrical devices.

[0034] In one possible implementation of the first aspect, the sum of the rated power of the first electrical device and the rated power of the second electrical device is greater than the allowable power.

[0035] In this embodiment, when both the first and second electrical devices operate at their rated power, the output power of the power supply module may exceed its allowable power. In this case, the power of the first electrical device needs to be adjusted so that the sum of its power and the power of the second electrical device is less than or equal to the allowable power of the power supply module. This minimizes the risk of triggering the overcurrent protection of the power supply module and improves the reliability of both devices.

[0036] In one possible implementation of the first aspect, the rated power of the first electrical device is less than the allowable power, and the rated power of the second electrical device is less than the allowable power.

[0037] In this embodiment, the rated power of the first electrical device is less than the allowable power, and the rated power of the second electrical device is also less than the allowable power. When the first electrical device is in operation and the second electrical device is not in operation, the first electrical device can be controlled to operate at its rated power, allowing it to operate at a higher power. This satisfies the power demand of the first electrical device as much as possible without triggering the overcurrent protection of the power supply module.

[0038] Secondly, embodiments of this application provide a power supply system, which includes a power supply module, a first electrical device, and a controller; the power supply module is used to output a first power to supply power to the first electrical device and a second electrical device, the second electrical device being an aftermarket component of a vehicle; the controller is used to acquire the first power; the controller is also used to control the power of the first electrical device according to the first power and the allowable power of the power supply module, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power.

[0039] In this embodiment, the power control device controls the power of the first electrical device based on the first power and the allowable power of the power supply module, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power of the power supply module, thereby minimizing the overcurrent protection of the power supply module and improving the reliability of the operation of the first and second electrical devices.

[0040] Thirdly, embodiments of this application provide a power control method, which can be executed by a power control device. The power control device may be a device with control and / or computing capabilities, or a software and / or hardware module within a standalone device.

[0041] The power control method includes: a power control device acquiring a first power, the first power being the output power of a power supply module; and controlling the power of a first electrical device based on the first power and the allowable power of the power supply module, so that the sum of the power of the first electrical device and the power of a second electrical device is less than or equal to the allowable power of the power supply module.

[0042] In this embodiment, the power control device controls the power of the first electrical device based on the first power and the allowable power of the power supply module, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power of the power supply module, thereby minimizing the overcurrent protection of the power supply module and improving the reliability of the operation of the first and second electrical devices.

[0043] In one possible implementation of the third aspect, the power control device controls the power of the first electrical device based on the first power and the allowable power of the power supply module, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power. Specifically, this can be achieved, but is not limited to, the following: the power control device determines the state of the first and second electrical devices based on the power of the first electrical device and the first power; when the first electrical device is in an operating state and the second electrical device is in an inoperable state, the power control device controls the first electrical device to operate at a second power, where the second power is the rated power of the first electrical device; or, when the first electrical device is in an inoperable state, the second electrical device is in an operating state, and a second power is detected... When a start command is given to the first electrical device, the power control device controls the first electrical device to operate at a third power or controls the first electrical device to not operate, such that the sum of the third power and the power of the second electrical device is less than or equal to the allowable power; or, when the first electrical device is in operating state and the second electrical device switches from non-operating state to operating state, the power control device reduces the power of the first electrical device so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power; or, when both the first and second electrical devices are in operating state, the power control device adjusts the power of the first electrical device so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power.

[0044] In one possible implementation of the third aspect, when the first electrical device is in a non-operating state, the second electrical device is in an operating state, and a start command for the first electrical device is detected, the power control device controls the first electrical device to operate at a third power or controls the first electrical device to not operate, wherein the sum of the third power and the power of the second electrical device is less than or equal to the allowable power. Specifically, this can be achieved in ways including but not limited to the following: when the first electrical device is in a non-operating state, the second electrical device is in an operating state, the power control device detects a start command for the first electrical device, and the difference between the allowable power and the first power is greater than or equal to the lower limit of the power when the first electrical device is in an operating state, the power control device controls the first electrical device to operate at a third power, wherein the sum of the third power and the power of the second electrical device is less than or equal to the allowable power; or, when the first electrical device is in a non-operating state, the second electrical device is in an operating state, the power control device detects a start command for the first electrical device, and the difference between the allowable power and the first power is less than the lower limit of the power when the first electrical device is in an operating state, the power control device controls the first electrical device to not operate.

[0045] In one possible implementation of the third aspect, when the first electrical device is in an operating state and the second electrical device switches from an inactive state to an operating state, the power control device reduces the power of the first electrical device. Specifically, this can be achieved in ways including but not limited to the following: when the first electrical device is in an operating state and the second electrical device switches from an inactive state to an operating state, the power control device reduces the power of the first electrical device by a first value; the first value is positively correlated with the power of the second electrical device, and the power of the second electrical device is the difference between the first power and the power of the first electrical device.

[0046] Fourthly, embodiments of this application provide a power control device that includes a unit for performing the method as described in any of the third aspects.

[0047] In one possible implementation, the device includes: The communication unit is used to obtain the first power, which is the output power of the power supply module.

[0048] The processing unit is configured to control the power of the first electrical device based on the first power and the allowable power of the power supply module, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power.

[0049] Regarding the processing unit and communication unit of the fourth aspect and any possible implementation, the steps performed thereon can be referred to the corresponding implementation of the third aspect.

[0050] For the technical effects of the fourth aspect and any possible implementation, please refer to the description of the technical effects corresponding to the third aspect and the corresponding implementation.

[0051] Optionally, in the power control device of the fourth aspect and any of the possible embodiments described above: In one implementation, the power control device is a power control apparatus. When the power control device is a power control apparatus, the communication unit can be a transceiver or an input / output interface; the processing unit can be at least one processor (e.g., at least one of a processor for intelligent driving or a vehicle-mounted processor). Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0052] In another implementation, the power control device is a chip (system) or circuit used in a power control device. When the power control device is a chip (system) or circuit used in a power control device, the communication unit can be a communication interface (input / output interface), interface circuit, output circuit, input circuit, pin, or related circuit on the chip (system) or circuit; the processing unit can be at least one processor, processing circuit, or logic circuit.

[0053] Fifthly, embodiments of this application provide a power control device including a processor. The processor is coupled to a memory and can be used to execute instructions in the memory to implement the methods described in the third aspect and any of the possible implementations. Optionally, the power control device further includes a memory. Optionally, the power control device further includes a communication interface, and the processor is coupled to the communication interface.

[0054] Sixthly, embodiments of this application provide a chip, including: logic circuitry and an interface. The interface is used to receive or send information; the logic circuitry is used to receive or send information through the interface, causing the chip to execute the methods described in the third aspect and any of the possible implementations above.

[0055] In a seventh aspect, embodiments of this application provide a computer-readable storage medium for storing a computer program (also referred to as code or instructions); when the computer program is run on a computer, the methods described in the third aspect and any possible implementation are implemented.

[0056] Eighthly, embodiments of this application provide a computer program product, which includes: a computer program (also referred to as code or instructions); and a method that, when the computer program is run, causes the computer to perform the methods described in the third aspect and any of the possible implementations.

[0057] Ninthly, embodiments of this application provide a vehicle that includes at least one power control device as described in the fourth aspect, or the fifth aspect, or the sixth aspect.

[0058] Optionally, the vehicle may include commercial vehicles, passenger vehicles, industrial vehicles (such as forklifts, trailers, tractors, etc.), engineering vehicles (such as excavators, bulldozers, cranes, etc.), etc., and this application embodiment does not limit this.

[0059] Optionally, the vehicle is used to implement the method described in the third aspect and any possible implementation.

[0060] Furthermore, in the process of implementing any aspect of the third aspect and any possible implementation of the method described above, the processes related to sending and / or receiving information can be understood as the process of the processor outputting information and / or the processor receiving input information. When outputting information, the processor can output the information to a transceiver (or communication interface, or transmitting module) for transmission. After the information is output by the processor, it may require further processing before reaching the transceiver. Similarly, when the processor receives input information, the transceiver (or communication interface, or transmitting module) receives the information and inputs it to the processor. Furthermore, after the transceiver receives the information, it may require further processing before being input to the processor.

[0061] Based on the above principles, for example, the information sent mentioned in the aforementioned method can be understood as information output by the processor. Similarly, the information received can be understood as information received by the processor from input.

[0062] Optionally, unless otherwise specified, or unless they contradict their actual function or internal logic in the relevant description, the operations of the processor, such as transmitting, sending, and receiving, can be more generally understood as processor output and receiving, input, and other operations.

[0063] Optionally, in performing the methods of the third aspect and any possible implementation described above, the processor may be a processor specifically designed to perform these methods, or it may be a processor that performs these methods by executing computer instructions stored in memory, such as a general-purpose processor. The memory may be a non-transitory memory, such as read-only memory (ROM), which may be integrated with the processor on the same chip or disposed on different chips. This application does not limit the type of memory or the arrangement of the memory and processor.

[0064] In one possible implementation, at least one of the aforementioned memories is located outside the device.

[0065] In yet another possible implementation, at least one of the aforementioned memories is located within the device.

[0066] In another possible implementation, a portion of the memory of the at least one memory is located inside the device, while another portion is located outside the device.

[0067] In this application, the processor and memory may also be integrated into a single device, that is, the processor and memory can be integrated together. Attached Figure Description

[0068] Figure 1 This is a schematic diagram of a power supply system provided in an embodiment of this application; Figure 2 This is a schematic diagram of another power supply system provided in an embodiment of this application; Figure 3 This is a schematic diagram of another power supply system provided in an embodiment of this application; Figure 4 A schematic diagram of another power supply system provided in this application embodiment; Figure 5 This is a schematic diagram of another power supply system provided in an embodiment of this application; Figure 6 A schematic flowchart of a power control method provided in an embodiment of this application; Figure 7 A schematic diagram of a power control process in a given scenario is provided for an embodiment of this application; Figure 8 This application provides a schematic diagram of a power control process in scenario two. Figure 9 This application provides a schematic diagram of a power control process in scenario three, as illustrated in an embodiment of the present application. Figure 10 This is a schematic diagram of the structure of a power control device provided in an embodiment of this application; Figure 11 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application; Figure 12 This is a schematic diagram of the structure of a chip provided in an embodiment of this application. Detailed Implementation

[0069] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described below with reference to the accompanying drawings.

[0070] The terms "first" and "second," etc., used in the specification, claims, and drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0071] In the embodiments of this application, "connection" refers to electrical connection. The connection between two electrical components can be a direct or indirect connection between the two electrical components. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through one or more other electrical components, such as the connection between A and B. Alternatively, A can be directly connected to C, and C can be directly connected to B, with A and B connected through C.

[0072] The term "embodiment" as used herein means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the various embodiments of this application are consistent and can be mutually referenced, and technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0073] It should be understood that in this application, "at least one (item)" means one or more, "more than one" means two or more, "at least two (items)" means two or three or more, and "and / or" is used to describe the relationship between related objects, indicating that there can be three relationships. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "At least one (item) 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 (item) of a, b, or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0074] It should be noted that, in this application, "instruction" can include direct instruction, indirect instruction, explicit instruction, and implicit instruction. When describing a certain instruction information for the purpose of instructing A, it can be understood that the instruction information carries A, directly instructs A, or indirectly instructs A.

[0075] In this application, the information indicated by the instruction information is called the information to be instructed. In specific implementations, there are many ways to indicate the information to be instructed, such as, but not limited to, directly indicating the information to be instructed, such as the information to be instructed itself or its index. It can also indirectly indicate the information to be instructed by indicating other information, where there is a correlation between the other information and the information to be instructed. It can also indicate only a part of the information to be instructed, while the other parts are known or pre-agreed upon. For example, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol-defined) arrangement of various information, thereby reducing instruction overhead to some extent. The information to be instructed can be sent as a whole or divided into multiple sub-information units, and the sending period and / or timing of these sub-information units can be the same or different. This application does not limit the specific sending method. The sending period and / or timing of these sub-information units can be predefined, for example, according to a protocol, or configured by the transmitting device by sending configuration information to the receiving device.

[0076] It should be noted that in this application, "send" can be understood as "output" and "receive" can be understood as "input". "Send information to A", where "to A" simply indicates the direction of information transmission, and A is the destination, does not limit "send information to A" to a direct transmission over the air interface. "Send information to A" includes sending information directly to A, as well as sending information indirectly to A through a transmitter. Therefore, "send information to A" can also be understood as "outputting information destined for A". Similarly, "receive information from A" indicates that the source of the information is A, including receiving information directly from A, as well as receiving information indirectly from A through a receiver. Therefore, "receive information from A" can also be understood as "inputting information from A".

[0077] The terminology used in the embodiments of this application will be explained below.

[0078] An OBC (On-Board Converter) is used to convert the direct current (DC) power from a battery to alternating current (AC). It can also convert 220V / 380V AC power from household outlets or charging stations to the DC power required by the battery. When operating in charging mode, the OBC converts the AC power from the charging station to the DC power required by the battery to charge it. When operating in discharging mode, the OBC converts the DC power from the battery to AC power to supply AC loads. The OBC has bidirectional conversion capability, allowing it to operate in both charging and discharging modes.

[0079] A power battery is a battery whose output voltage is greater than or equal to a first set threshold. A high-voltage battery can be composed of multiple smaller batteries connected in series and / or parallel. A high-voltage battery can be a lithium battery (e.g., ternary lithium batteries and lithium iron phosphate batteries). For example, a high-voltage battery can be a power battery or power battery pack in a vehicle. A power battery, also known as a "large battery," can output a voltage of several hundred volts (V), and its capacity is typically tens to hundreds of kilowatt-hours (kWh). The capacity of the power battery directly affects the vehicle's driving range.

[0080] A low-voltage battery is a battery whose output voltage is less than or equal to a second preset threshold. The first preset threshold is greater than or equal to the second preset threshold. A low-voltage battery can be a rechargeable battery (e.g., a lead-acid battery) or a lithium battery (e.g., a lithium iron phosphate battery). For example, a low-voltage battery can be a rechargeable battery used in a vehicle. Low-voltage batteries, also known as "small batteries," can output voltages of approximately 12V, 24V, or 48V. The capacity of a low-voltage battery is generally less than or equal to the capacity of the main battery. Low-voltage batteries can power low-voltage loads in a vehicle. Low-voltage loads can include various control devices, sensors, interior and exterior lighting, power windows and doors, seat motors, etc.

[0081] An AC load is any electrical device capable of receiving alternating current (AC). Examples of AC loads include water dispensers, induction cookers, microwave ovens, rice cookers, and computers. For instance, an AC load can be supplied with 220V AC power.

[0082] A DC load is any electrical device capable of receiving direct current. Examples of DC loads include seat motors, car cigarette lighters, air conditioning systems, and audio systems. Seat motors can provide functions such as massage, ventilation, and heating.

[0083] The switching unit can be controlled by the control module to switch its state (the switching unit is in a conducting state or an open state). For example, the switching unit can be any of the following: relay, contactor, metal oxide semiconductor field effect transistor (MOSFET), or insulated gate bipolar transistor (IGBT).

[0084] Original equipment (OEM) components, as factory-installed parts, typically integrate power measurement sensors (such as voltage and current sensors) and communication protocols. They can monitor their own power in real time through these integrated sensors and communicate with other OEM components in the vehicle via the integrated communication protocol. The power data of OEM components can usually be measured in real time.

[0085] Aftermarket components, being installed later, lack integrated power measurement sensors and communication protocols, making it impossible to monitor their own power in real time or communicate with pre-installed components on the vehicle. Therefore, the power of aftermarket components cannot be measured in real time.

[0086] Permissible power refers to the maximum power value that can be used continuously under the premise of ensuring the safe operation of the equipment.

[0087] Rated power is the maximum power that a device can continuously operate under normal working conditions.

[0088] Rated power is a fixed value, while allowable power is related to the device's current operating environment. The allowable power of the same device is less than or equal to its rated power. For example, the rated power of an OBC is typically greater than or equal to its allowable power. The rated power of an OBC is its maximum output power under ideal conditions. The allowable power of an OBC is a safe upper limit considering actual operating conditions (such as heat dissipation and load fluctuations). For example, an OBC with a rated power of 10 kilowatts (kW) may have its allowable power reduced to 9 kW due to heat dissipation limitations. In actual use, the output power of the OBC is limited by its allowable power to ensure safe operation of the device.

[0089] With the continuous improvement of automotive intelligence and comfort, some vehicles are equipped with in-vehicle water dispensers to provide convenient drinking water for passengers. Currently, these in-vehicle water dispensers share the same power supply circuit as other in-vehicle electrical equipment (such as induction cookers and computers). When used simultaneously, this increases the power consumption of the on-board charger (OBC), potentially triggering the OBC's overcurrent protection. This could cause the relay in that power supply circuit to disconnect, rendering the in-vehicle electrical equipment unusable.

[0090] Please see Figure 1 , Figure 1 This is a schematic diagram of a power supply system provided in an embodiment of this application. Figure 1 As shown, the power supply system 100 includes a power supply module 10 and a first electrical device 20.

[0091] Both the first electrical device 20 and the power supply module 10 are pre-installed components in the vehicle. The first electrical device 20 can report its own power (measured by sensors) to the power supply module 10 or receive the power of the first electrical device 20 transmitted by the power supply module 10 (measured by sensors). The power of the first electrical device 20 can be measured in real time, and the output power of the power supply module 10 can also be measured in real time.

[0092] The second electrical device 30 is an aftermarket component of the vehicle. It lacks integrated power measurement sensors and communication protocols, making it unable to monitor its own power in real time or communicate with pre-installed components. The power of the first electrical device 20 cannot be measured in real time. The power of the first electrical device 20 cannot be measured by sensors.

[0093] The power supply module 10 outputs a first power to power the first electrical device 20 and the second electrical device 30. The power of the power supply branch of the power supply module 10 is the first power. The first power output by the power supply module 10 can be allocated to the first electrical device 20 and the second electrical device 30. The first power is the output power of the power supply module 10, and the output power of the power supply module 10 can be dynamically adjusted according to the needs of the load (the first electrical device 20 and the second electrical device 30). For example, if the first electrical device 20 is a car water dispenser and the second electrical device 30 is an induction cooker, the user can adjust the heating power of the car water dispenser and the power of the induction cooker. The power supply module 10 can dynamically adjust its output first power according to the power requirements of the first electrical device 20 and the second electrical device 30. The second electrical device 30 may include at least one electrical device. Figure 1 As shown, when both the first electrical device 20 and the second electrical device 30 are AC loads, the second electrical device 30 may include electrical devices connected to a 220V socket, such as appliance 1 and appliance 2.

[0094] The power of the first electrical device 20 can be dynamically adjusted according to changes in the power of other electrical devices. In one possible example, when the power of the second electrical device 30 changes, the first electrical device 20 can dynamically adjust its own power through an internal controller. In another possible example, other control modules (e.g., Figure 5 The controller 60 can dynamically adjust the power of the first electrical device 20. The power of the first electrical device 20 can be manually adjusted by the user.

[0095] The power of the second electrical device 30 cannot be dynamically adjusted according to changes in the power of other electrical devices. For example, when the power of the first electrical device 20 changes, the second electrical device 30 cannot dynamically adjust its own power through its internal controller, nor can it dynamically adjust its power through other control modules. The power of the second electrical device 30 can be adjusted manually.

[0096] The first electrical device 20 is used to obtain first power. The first electrical device 20 can communicate with the power supply module 10 to obtain the output power of the power supply module 10.

[0097] The first electrical device 20 is also used to control the power of the first electrical device 20 according to the first power and the allowable power of the power supply module 10, so that the sum of the power of the first electrical device 20 and the power of the second electrical device 30 is less than or equal to the allowable power of the power supply module 10.

[0098] The allowable power of the power supply module 10 is the maximum power value that can be continuously used under the premise of ensuring the safe operation of the power supply module 10. Optionally, the allowable power of the power supply module 10 is related to the current operating environment of the power supply module 10. When the current operating environment is determined, the allowable power of the power supply module 10 is a fixed value. The current operating environment may include: the ambient temperature, ambient humidity, ambient air pressure, etc. of the power supply module 10. For example, if the allowable ambient temperature range of the power supply module 10 is -40 degrees Celsius (°C) to 85°C, the corresponding allowable power may be different in different ambient temperature ranges. For example, when the ambient temperature range is 0°C to 45°C, the allowable power is P1; when the ambient temperature range is -40°C to 0°C, the allowable power is P2; and when the ambient temperature range is 45°C to 85°C, the allowable power is P3. Among them, P2 is greater than P1, and P2 is greater than P3.

[0099] When the initial power output of power supply module 10 exceeds its allowable power, the output current of power supply module 10 becomes excessive, which may trigger overcurrent protection, causing the output of power supply module 10 to disconnect. The initial power output of power supply module 10 must be less than or equal to its allowable power to avoid triggering overcurrent protection.

[0100] The first electrical device 20 is an electronic device with control and / or computing capabilities, or a software and / or hardware module within an electronic device. The first electrical device 20 can implement the power control method described below. Examples of hardware and software implementations are given below.

[0101] As an example of hardware implementation, the first electrical device 20 may include at least one processor, which is a module with processing capabilities. In one implementation, the processor includes circuitry with instruction read and execute capabilities, such as an arithmetic logic unit (ALU), processor core, central processing unit (CPU), microprocessor, microcontroller unit (MCU), etc. For example, in the case where the first electrical device 20 is a vehicle-mounted water dispenser, the processor may be the controller within the water dispenser.

[0102] As an example of software implementation, the first electrical device 20 may include software functional units. As another example of software functional units, the first electrical device 20 may include one or more of the following: an executable computer program, computer code, or computer instructions, where "executable" means capable of running on a processor or computing instance.

[0103] In this embodiment of the application, when the power of the second electrical device 30 cannot be measured in real time, the first electrical device 20 controls its power based on the first power and the allowable power of the power supply module 10, so that the sum of the power of the first electrical device 20 and the power of the second electrical device 30 is less than or equal to the allowable power of the power supply module 10, thereby minimizing the triggering of the overcurrent protection of the power supply module 10 and improving the reliability of the operation of the first electrical device 20 and the second electrical device 30.

[0104] Please see Figure 2 , Figure 2 This is a schematic diagram of another power supply system provided in an embodiment of this application. Figure 2 As shown, the power supply system 100 includes a power supply module 10 and a first electrical device 20. The power supply module 10 is an AC power supply module 10, which includes an OBC 11 and a power battery 12.

[0105] OBC11 is used to convert the direct current output from the power battery 12 into alternating current, which is used to power the first electrical device 20 and the second electrical device 30. The alternating current can be 220V, 110V, 240V, or 120V.

[0106] OBC11 is also used to acquire first power and send the first power to the first electrical device 20, whereby the first power is the output power of OBC11.

[0107] OBC11 can periodically acquire the first power, and the first power will also change dynamically when the power of the first electrical device 20 and the power of the second electrical device 30 change.

[0108] Since the power of the first electrical device 20 and the power of the second electrical device 30 change dynamically, the actual output power of OBC11 may not be equal to the first power when the first electrical device 20 receives the first power. In order to ensure that the actual output power of OBC11 is less than or equal to the allowable power of OBC11, the power of the first electrical device 20 can be adjusted to leave a certain amount of redundant power, thereby avoiding the actual output power of OBC11 from exceeding the allowable power of OBC11, thus avoiding triggering the overcurrent protection of OBC11 and improving the reliability of the use of in-vehicle electrical devices (first electrical device 20 and second electrical device 30).

[0109] In this embodiment, OBC11 operates in discharge mode, and both the first electrical device 20 and the second electrical device 30 are AC loads. For example, the first electrical device 20 is an AC load whose power can be measured in real time, while the second electrical device 30 is an AC load whose power cannot be measured in real time.

[0110] In one possible implementation, the power of the first electrical device 20 can be dynamically adjusted, and the adjustment range is relatively large. For example, the first electrical device 20 can be a vehicle-mounted water dispenser or a vehicle-mounted heating device (e.g., vehicle-mounted floor heating). The power of the vehicle-mounted water dispenser or vehicle-mounted heating device can be dynamically adjusted, and the adjustment range is relatively large. For example, the power of the vehicle-mounted water dispenser can be dynamically adjusted from tens of watts to two kilowatts. Because the power of the vehicle-mounted water dispenser can be dynamically adjusted, the sum of the power of the vehicle-mounted water dispenser and the power of the second electrical device 30 can be controlled to be less than or equal to the allowable power of the power supply module 10, thereby minimizing the triggering of the overcurrent protection of the power supply module 10 and improving the reliability of the operation of the first electrical device 20 and the second electrical device 30.

[0111] In one possible implementation, such as Figure 3 As shown, when the first electrical device 20 is a vehicle-mounted water dispenser, the water dispenser includes a controller, a heating module, a second switching unit, and a water dispensing module; the power supply module 10 supplies power to the heating module through the second switching unit. The controller is a device with control and / or computing capabilities. The controller is responsible for implementing the power control algorithm and controlling the heating module and the second switching unit. Simultaneously, the controller can detect the operating power of the vehicle-mounted water dispenser in real time. The heating module has heating capabilities and can heat the drinking water in the vehicle-mounted water dispenser. When the second switching unit is in the ON state, the power supply module 10 can supply power to the heating module in the vehicle-mounted water dispenser. When the second switching unit is in the OFF state, the power supply module 10 cannot supply power to the heating module in the vehicle-mounted water dispenser. The second switching unit can be any one of a relay, contactor, MOSFET, or IGBT. The water dispensing module can control the water dispensing speed of the drinking water in the vehicle-mounted water dispenser through the controller. The controller can control the second switching unit to be in the OFF state if a fault is detected in the water dispensing module. The heating method of the vehicle-mounted water dispenser can be instantaneous.

[0112] In this embodiment, when the water outlet module malfunctions (e.g., water pipe leakage, water outlet blockage), the vehicle-mounted water dispenser cannot function properly. If the heating module is still running, the vehicle-mounted water dispenser will consume some power, potentially limiting the power of the second electrical device 30. At this time, the controller controls the second switching unit to be in the off state, preventing the vehicle-mounted water dispenser from consuming power from the power supply module 10. The power supply module 10 then supplies as much power as possible to the second electrical device 30, ensuring the reliability of its operation. When the water outlet module malfunction is resolved, the controller can control the second switching unit to be in the on state to meet the heating requirements of the vehicle-mounted water dispenser.

[0113] Car-mounted water dispensers can be installed as a system component inside a vehicle and used as a pre-installed part. Unlike household water dispensers, the high-pressure power inside a vehicle is not always sufficient. Figure 3 As shown, the vehicle-mounted water dispenser and the second electrical device 30 (electrical devices connected to a 220V socket, such as appliance 1 and appliance 2) are in the same high-voltage branch (e.g., a 220V high-voltage branch). The OBC11 operates in discharge mode. When the vehicle-mounted water dispenser and the second electrical device 30 are used simultaneously, they both consume the first power output of the OBC11. Since the OBC11 has a limited allowable power, if the first power output of the OBC11 exceeds its allowable power, it may trigger the OBC11 overcurrent protection, causing the first switching unit 40 to be in the open state. This prevents the normal operation of the second electrical device 30 and also affects the lifespan of the OBC11. The OBC11 can only detect the first power output of the OBC11, which is the total power consumption of the vehicle-mounted water dispenser and the second electrical device 30. The OBC11 cannot identify the power of the vehicle-mounted water dispenser, nor the power of the second electrical device 30, and therefore cannot control the on / off operation of either the vehicle-mounted water dispenser or the electrical appliances in the second electrical device 30. The electrical appliances in the second electrical device 30 can adjust their power according to user selection during operation, but the operating power of these appliances cannot be detected. The first switching unit 40 can be found in the following embodiment.

[0114] In this embodiment, OBC11 can detect the total power consumption under this high-voltage branch in real time, i.e., the first power output by OBC11. OBC11 can transmit the detected first power to the controller of the vehicle-mounted water dispenser in real time through ECU50. When the first power exceeds the allowable power of OBC11, OBC11 will trigger overcurrent protection, thereby causing the first switching unit 40 to be in the open state to protect OBC11. This embodiment utilizes the adjustable power characteristic of the vehicle-mounted water dispenser. The vehicle-mounted water dispenser can predict the future operating power of the vehicle-mounted water dispenser based on the first power detected by OBC11 and the power detected by the vehicle-mounted water dispenser itself in real time. The second electrical device 30 can be prioritized to operate at full power, while ensuring that OBC11 does not trigger overcurrent protection.

[0115] In one possible implementation, the water output speed of the water output module is positively correlated with the power of the first electrical device 20.

[0116] In this embodiment, the vehicle-mounted water dispenser can be an instant hot water dispenser, and the water dispensing speed of the water dispensing module is positively correlated with the power of the vehicle-mounted water dispenser. The higher the power of the vehicle-mounted water dispenser, the faster the heating module heats the water.

[0117] The water dispensing speed of the vehicle-mounted water dispenser's water dispensing module is positively correlated with the dispenser's power, meaning that as the dispenser's power increases, the water dispensing speed remains constant or increases. The mapping relationship between the water dispensing speed and the dispenser's power can be a monotonically increasing function. Monotonically increasing functions can be classified as strictly monotonically increasing functions or non-strictly monotonically increasing functions (e.g., a step function). For example, the monotonically increasing function in this embodiment can be either strictly monotonically increasing or non-strictly monotonically increasing.

[0118] The water dispensing speed of the vehicle-mounted water dispenser's module is positively correlated with its power. This ensures consistent water temperature across different power levels, preventing temperature fluctuations and improving user experience. For example, when the water dispenser's power is halved, the water dispensing speed is also halved.

[0119] In one possible implementation, the second electrical device 30 can be any one of an induction cooker, microwave oven, rice cooker, computer, or electric kettle. The second electrical device 30 may include at least one electrical device. The number of electrical devices in the second electrical device 30 can change in real time, and the power of the second electrical device 30 can also change in real time.

[0120] Please see Figure 4 , Figure 4 This is a schematic diagram of another power supply system provided as an embodiment of this application. For example... Figure 4As shown, the power supply system 100 includes a power supply module 10, a first electrical device 20, and a second electrical device 30. The power supply module 10 is a DC power supply module. The DC power supply module 10 may include a low-voltage battery, or it may include a power battery 12 and a DC-DC converter. When the DC power supply module 10 includes a power battery 12 and a DC-DC converter, the DC-DC converter can convert one type of DC power output from the power battery 12 into another type of DC power, thereby supplying power to the DC load.

[0121] In this embodiment, the first electrical device 20 can be a DC load with real-time power measurement, such as a seat motor, a car cigarette lighter, or an air conditioner. The second electrical device 30 can be a DC load with non-real-time power measurement, such as a car audio system or car lights.

[0122] Please see Figure 5 , Figure 5 This is a schematic diagram of another power supply system provided in an embodiment of this application. Figure 5 As shown, the power supply system 100 includes a power supply module 10, a first electrical device 20, and a controller 60. The power supply module 10 outputs a first power to supply power to the first electrical device 20 and a second electrical device 30, where the second electrical device is an aftermarket component of the vehicle. The controller 60 acquires the first power. The controller 60 also controls the power of the first electrical device 20 based on the first power and the allowable power of the power supply module 10, such that the sum of the power of the first electrical device 20 and the power of the second electrical device 30 is less than or equal to the allowable power. In the case where the first electrical device 20 is a vehicle-mounted water dispenser, the vehicle-mounted water dispenser includes a heating module, a second switching unit, and a water dispensing module. The controller 60 is a device with control and / or computing capabilities. It is responsible for implementing the power control algorithm and controlling the heating module and the second switching unit. Simultaneously, the controller 60 can monitor the operating power of the vehicle-mounted water dispenser in real time. For example, it can communicate with voltage and current sensors to obtain the operating voltage and current of the heating module detected by these sensors, thereby determining the power of the vehicle-mounted water dispenser. The power supply module 10 supplies power to the heating module through the second switching unit. Further descriptions of the heating module, the second switching unit, and the water dispensing module can be found above. Figure 3 For a corresponding embodiment, the relevant description of the power supply module 10 can be found above. Figure 2 The corresponding implementation examples will not be described in detail here.

[0123] Optional, such as Figure 2 or Figure 3 or Figure 4 or Figure 5As shown, the power supply system 100 also includes a first switching unit 40, and the power supply module 10 is used to supply power to the first electrical device 20 and the second electrical device 30 through the first switching unit 40. When the first switching unit 40 is in the on state, the power supply module 10 can supply power to the first electrical device 20 and the second electrical device 30. When the first switching unit 40 is in the off state, the power supply module 10 cannot supply power to the first electrical device 20 and the second electrical device 30.

[0124] The first switching unit 40 can be any of a relay, contactor, MOSFET, or IGBT. When the output current of the power supply module 10 exceeds the current threshold corresponding to the overcurrent protection, the first switching unit 40 can be controlled to be in the open state. The current threshold corresponding to the overcurrent protection can be higher than the rated output current of the power supply module 10. For example, the current threshold corresponding to the overcurrent protection can be 1.1 times the rated output current of the power supply module 10.

[0125] Optional, such as Figure 2 or Figure 3 or Figure 4 or Figure 5 As shown, the power supply system 100 also includes an electronic control unit (ECU) 50, which has communication and control functions. The ECU 50 can act as a gateway; for example, it can acquire the first power sent by the power supply module 10 and transmit the first power to the first electrical device 20. The ECU 50 can also control the first switching unit 40. The power supply module 10 can measure its output current using a current sensor and send the output current to the ECU 50. The ECU 50 determines whether the output current of the power supply module 10 exceeds the current threshold corresponding to the overcurrent protection. If it does, the ECU 50 can control the first switching unit 40 to be in the off state; if it does not exceed the threshold, the ECU 50 can control the first switching unit 40 to be in the on state.

[0126] The above Figures 1 to 5 In the diagram, the thicker lines represent electrical power transmission lines, while the thinner lines represent data or signal transmission lines.

[0127] The above description of the power supply system can be applied to the method embodiments below.

[0128] Please see Figure 6 , Figure 6 This is a schematic flowchart illustrating a power control method provided in an embodiment of this application. This power control method can be used in the aforementioned power supply system 100. For example... Figure 6The power control method shown may include steps 601 to 602. The order of these steps is merely an example, and the embodiments of this application are equally applicable to other step execution orders, multiple executions of a particular step, etc. Steps 601 to 602 are as follows: 601, The power control device obtains the first power, which is the output power of the power supply module.

[0129] A power control device is a device with control and / or computing capabilities. For example, the power control device may be the first electrical device 20 described above, the controller in the vehicle-mounted water dispenser described above, or the controller 60 in the power supply system 100 described above. A power supply module may be a device with control and / or computing capabilities. For example, the power supply module may be the power supply module 10 described above.

[0130] The power control device can acquire a first power from the power supply module. The power supply module can measure the first power output by the power supply module and transmit the measured first power to the power control device. The power supply module can periodically measure the first power output by the power supply module and transmit the measured first power to the power control device. The first power can change dynamically.

[0131] 602, the power control device controls the power of the first electrical device according to the first power and the allowable power of the power supply module, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power of the power supply module.

[0132] The second electrical device can be the aforementioned second electrical device 30.

[0133] The allowable power of a power supply module is the maximum power value that can be continuously used while ensuring the safe operation of the power supply module. For example, if the allowable power of the power supply module is P, the first power is A, and the power of the first electrical device is B, where B is less than or equal to A. If A is greater than P, then the power of the first electrical device is adjusted from B to B1, where B1 ≤ P - A + B. If A is less than or equal to P, then the power of the first electrical device does not need to be adjusted. The power of the second electrical device is the difference between the first power and the first electrical device's power. If the power of the second electrical device is C, then C = AB. Steps 601 to 602 can be executed periodically.

[0134] In this embodiment of the application, when the power of the second electrical device cannot be measured in real time, the power control device controls the power of the first electrical device according to the first power and the allowable power of the power supply module, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power of the power supply module, thereby minimizing the triggering of the overcurrent protection of the power supply module and improving the reliability of the operation of the first and second electrical devices.

[0135] In one possible implementation, the sum of the rated power of the first electrical device and the rated power of the second electrical device is greater than the allowable power of the power supply module.

[0136] In this embodiment, when both the first and second electrical devices operate at their rated power, the output power of the power supply module may exceed its allowable power. In this case, the power of the first electrical device needs to be adjusted so that the sum of its power and the power of the second electrical device is less than or equal to the allowable power of the power supply module. This minimizes the risk of triggering the overcurrent protection of the power supply module and improves the reliability of both devices.

[0137] In one possible implementation, the rated power of the first electrical device is less than the allowable power, and the rated power of the second electrical device is less than the allowable power.

[0138] In this embodiment, the rated power of the first electrical device is less than its allowable power, and the rated power of the second electrical device is also less than its allowable power. When the first electrical device is in operation and the second electrical device is not in operation, the power control device can control the first electrical device to operate at its rated power, allowing it to operate at a higher power to meet its power demand as much as possible without triggering the overcurrent protection of the power supply module. When the first electrical device is not in operation and the second electrical device is in operation, the second electrical device operates at its rated power, and the overcurrent protection of the power supply module is also not triggered.

[0139] In this context, "electrical equipment in working state" means that the power of the electrical equipment is not 0, and "electrical equipment in non-working state" means that the power of the electrical equipment is 0.

[0140] In one possible implementation, the power control device controls the power of the first electrical device based on the first power and the allowable power of the power supply module, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power of the power supply module, which may include any of the following three methods.

[0141] Method 1: The power control device determines the status of the first and second electrical devices based on the power of the first electrical device and the first power. When the first electrical device is in the working state and the second electrical device is in the non-working state, the power control device controls the first electrical device to operate at the second power, which is the rated power of the first electrical device. When the first electrical device is in the working state and the second electrical device switches from the non-working state to the working state, the power control device reduces the power of the first electrical device so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power of the power supply module.

[0142] In this embodiment, the power control device can determine the state of the first and second electrical devices based on the power of the first electrical device and a first power. If the power of the first electrical device and the first power are equal and not zero, it indicates that the first electrical device is in a working state and the second electrical device is in a non-working state. If the power of the first electrical device and the first power are equal and zero, it indicates that both the first and second electrical devices are in a non-working state. If the first power is greater than the power of the first electrical device, and the power of the first electrical device is zero, it indicates that the first electrical device is in a non-working state and the second electrical device is in a working state. If the first power is greater than the power of the first electrical device, and the power of the first electrical device is not zero, it indicates that both the first and second electrical devices are in a working state.

[0143] In the first method described above, during the first stage, when the first electrical device is in operation and the second electrical device is not in operation, the power supply module will not face the risk of overcurrent protection. At this time, the power control device can control the first electrical device to operate at its rated power, allowing it to operate at a higher power to meet its power demand as much as possible. The rated power of the first electrical device is the maximum power value that the first electrical device can continuously use under normal operating conditions. In the second stage, when the first electrical device is in operation and the second electrical device switches from an off-state to an operating state, since the power of the second electrical device is unknown, in order to provide a larger redundant power to the second electrical device, the power control device reduces the power of the first electrical device so that the sum of the power of the first and second electrical devices is less than or equal to the allowable power of the power supply module, thereby minimizing the risk of triggering the overcurrent protection of the power supply module.

[0144] Method 2: The power control device determines the status of the first and second electrical devices based on the power of the first electrical device and the first power. When the first electrical device is in a non-operating state, the second electrical device is in an operating state, and a start command for the first electrical device is detected, the power control device controls the first electrical device to operate at a third power or controls the first electrical device to be inactive. The sum of the third power and the power of the second electrical device is less than or equal to the allowable power of the power supply module. When both the first and second electrical devices are in an operating state, the power control device adjusts the power of the first electrical device so that the sum of the power of the first and second electrical devices is less than or equal to the allowable power of the power supply module. The third power can be less than or equal to the rated power of the first electrical device.

[0145] In this embodiment, the power control device determines the state of the first electrical device and the second electrical device based on the power of the first electrical device and the first power, as described in the above-mentioned method one, and will not be repeated here.

[0146] In Method Two described above, in the first stage, when the first electrical device is inactive and the second electrical device is active, the power of the second electrical device cannot be dynamically adjusted based on changes in the power of other electrical devices. The power of the second electrical device can be manually adjusted by the user or remain unchanged. At this time, if a start command for the first electrical device is detected, the power control device controls the first electrical device to operate at a third power or controls the first electrical device to be inactive. The sum of the third power and the power of the second electrical device is less than or equal to the allowable power of the power supply module, thereby minimizing the triggering of the power supply module's overcurrent protection. In the second stage, when both the first and second electrical devices are active, the power control device adjusts the power of the first electrical device so that the sum of the power of the first and second electrical devices is less than or equal to the allowable power of the power supply module, thereby minimizing the triggering of the power supply module's overcurrent protection.

[0147] In the second method described above, when the first electrical device is in a non-operating state, the second electrical device is in an operating state, and a start command for the first electrical device is detected, the power control device controls the first electrical device to operate at a third power or controls the first electrical device to not operate. The sum of the third power and the power of the second electrical device is less than or equal to the allowable power of the power supply module, which can include the following two situations: Case 1: When the first electrical device is in a non-operating state, the second electrical device is in an operating state, a start command for the first electrical device is detected, and the difference between the allowable power of the power supply module and the first power is greater than or equal to the lower limit of the power when the first electrical device is in an operating state, the power control device controls the first electrical device to operate at a third power, and the sum of the third power and the power of the second electrical device is less than or equal to the allowable power of the power supply module.

[0148] In this embodiment, the power dynamic range of the first electrical device when it is in the working state is P11~P21. The lower limit of the power of the first electrical device in the working state is P11, and the upper limit of the power is P21. When the first electrical device is in the working state, the power of the first electrical device can vary between P11 and P21. When the first electrical device is in the non-working state and the second electrical device is in the working state, the first power is the power of the second electrical device. At this time, when a start command for the first electrical device is detected, and the difference between the allowable power of the power supply module and the first power is greater than or equal to P11, it indicates that the first electrical device can operate at a power greater than or equal to P11. At this time, the power control device can control the first electrical device to operate at a third power. The third power is greater than or equal to P11, and the sum of the third power and the power of the second electrical device is less than or equal to the allowable power of the power supply module, thereby minimizing the triggering of the overcurrent protection of the power supply module.

[0149] Scenario 2: When the first electrical device is in a non-operating state, the second electrical device is in an operating state, a start command for the first electrical device is detected, and the difference between the allowable power and the first power is less than the lower limit of the power when the first electrical device is in an operating state, the power control device controls the first electrical device to not operate.

[0150] In this embodiment, when the first electrical device is in operation, its power can vary between P11 and P21. When the first electrical device is not in operation and the second electrical device is in operation, the first power is the power of the second electrical device. In this case, if a start command for the first electrical device is detected, and the difference between the allowable power of the power supply module and the first power is less than P11, it indicates that the sum of P11 and the first power is greater than the allowable power of the power supply module. Even if the first electrical device operates at power P11, it may still trigger the overcurrent protection of the power supply module. In this situation, the power control device can control the first electrical device to not operate, thereby minimizing the risk of triggering the overcurrent protection of the power supply module.

[0151] In the above method one, when the first electrical device is in working state and the second electrical device switches from a non-working state to a working state, the power control device reduces the power of the first electrical device, which can be achieved in ways including but not limited to the following: When the first electrical device is in operation and the second electrical device switches from a non-operational state to an operational state, the power control device lowers the power of the first electrical device by a first value; the first value is positively correlated with the power of the second electrical device, and the power of the second electrical device is the difference between the first power and the power of the first electrical device.

[0152] In this embodiment, the first value is positively correlated with the power of the second electrical device, meaning that as the power of the second electrical device increases, the first value remains constant or increases. The mapping relationship between the first value and the power of the second electrical device can be a monotonically increasing function. Monotonically increasing functions can be classified as strictly monotonically increasing functions or non-strictly monotonically increasing functions (e.g., a step function). For example, the monotonically increasing function in this embodiment can be either strictly monotonically increasing or non-strictly monotonically increasing. The first value is less than or equal to the first power.

[0153] In this embodiment, the greater the power of the second electrical device, the greater the first threshold, and the lower the adjusted power of the first electrical device, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power of the power supply module, thereby minimizing the triggering of the overcurrent protection of the power supply module.

[0154] The following is based on Figure 3 The power supply system, taking the vehicle-mounted water dispenser as the first electrical device and the controller of the vehicle-mounted water dispenser as the power control device, will be used as an example to explain Method 1. Please refer to Scenario 1 below.

[0155] Scenario 1: The vehicle-mounted water dispenser is used as a secondary electrical device during operation.

[0156] Please see Figure 7 , Figure 7 This is a schematic diagram of a power control process in a given scenario, provided as an embodiment of this application. For example... Figure 7As shown, in the first stage, the vehicle-mounted water dispenser operates first, while the second electrical device does not. At this time, the water dispenser operates at its rated power. If the second electrical device operates at this time, the first power output by the OBC may exceed the OBC's allowable power, triggering the OBC's overcurrent protection and disconnecting the first switching unit. In the second stage, when the water dispenser's controller detects that the second electrical device is operating (detecting that the first power output by the OBC is not equal to the water dispenser's power), it immediately implements a power reduction operation, lowering the water dispenser's power by a first value m (the first value m can be determined based on the power of the second electrical device, and the first value m is positively correlated with the power of the second electrical device), leaving a large redundant power for the second electrical device. When the water dispenser and the second electrical device operate simultaneously, the water dispenser's controller automatically adjusts its own power based on the real-time calculated power B1. Where B1 = P - A + B, P is the allowable power of the OBC, A is the power detected by the OBC itself, i.e., the first power output by the OBC, B is the power of the vehicle-mounted water dispenser, and B1 is the predicted available power of the vehicle-mounted water dispenser. Both B and A are measured in real time.

[0157] The following is based on Figure 3 The power supply system, taking the vehicle-mounted water dispenser as the first electrical device and the controller of the vehicle-mounted water dispenser as the power control device, will be used as an example to explain Method 2. Please refer to Scenario 2 below.

[0158] Scenario 2: The second electrical device starts working before the vehicle-mounted water dispenser.

[0159] Please see Figure 8 , Figure 8 This is a schematic diagram of a power control process in scenario two, provided as an embodiment of this application. Figure 8 As shown, in the first stage, when the vehicle-mounted water dispenser is not running, the controller of the vehicle-mounted water dispenser receives the first power, which is the power C of the second electrical device. At this time, the vehicle-mounted water dispenser can operate according to the power B1 to prevent excessive power from triggering the overcurrent protection of the OBC, thereby disconnecting the first switching unit. In the first stage, B1 = PA, where P is the allowable power of the OBC, A is the power detected by the OBC itself, i.e., the first power output by the OBC, and B1 is the predicted available power of the vehicle-mounted water dispenser. In the second stage, when the vehicle-mounted water dispenser and the second electrical device are running simultaneously, the vehicle-mounted water dispenser can operate according to the power B1. Wherein, B1 = P - A + B, where P is the allowable power of the OBC, A is the power detected by the OBC itself, i.e., the first power output by the OBC, B is the power of the vehicle-mounted water dispenser, and B1 is the predicted available power of the vehicle-mounted water dispenser. B and A are both measured in real time.

[0160] The following is based on Figure 3The power supply system, taking the vehicle-mounted water dispenser as the first electrical device and the controller of the vehicle-mounted water dispenser as the power control device, is used as an example to explain the handling method when the first electrical device fails. Please refer to Scenario 3 below.

[0161] Scenario 3: How to handle a malfunction in a vehicle-mounted water dispenser.

[0162] Please see Figure 9 , Figure 9 This is a schematic diagram of a power control process in scenario three, provided as an embodiment of this application. Figure 9 As shown, when the vehicle-mounted water dispenser malfunctions (for example, the water dispensing module of the vehicle-mounted water dispenser malfunctions while the heating module of the vehicle-mounted water dispenser is still working), the controller of the vehicle-mounted water dispenser controls the second switching unit to be in the off state, so that the vehicle-mounted water dispenser does not occupy the power output of the power supply module, and the power supply module supplies power to the second electrical device as much as possible, thereby ensuring the reliability of the second electrical device.

[0163] The following is based on Figure 3 The power supply system, taking the vehicle-mounted water dispenser as the first electrical device, the controller of the vehicle-mounted water dispenser as the power control device, and the computer as the second electrical device as an example, will be used to explain Method 2. Please refer to Scenario 4 below.

[0164] Scenario 4: The user first plugs the computer charger into a 220V socket to charge, and then turns on the car water dispenser. The power control method for Scenario 4 may include steps 11 to 14 below.

[0165] Step 11: After the vehicle is powered on, the controller of the vehicle-mounted water dispenser starts working.

[0166] Vehicle power-on includes low-voltage power-on and high-voltage power-on. Low-voltage power-on refers to the vehicle's low-voltage battery starting to supply power to the vehicle's low-voltage loads. High-voltage power-on refers to the vehicle's power battery starting to supply power to the vehicle's high-voltage loads. Generally, low-voltage and high-voltage power-on are performed sequentially. High-voltage loads can be the aforementioned AC loads. After low-voltage power-on, the onboard water dispenser's controller starts working, the heating module is not working, and the second switching unit of the onboard water dispenser is in the off state.

[0167] Step 12: The user plugs the computer charger into a 220V socket. The OBC sends the detected first power to the controller of the car water dispenser in real time. The first power is the output power of the OBC.

[0168] Step 13: The user then operates the vehicle-mounted water dispenser to boil water.

[0169] Step 14: The controller of the vehicle water dispenser performs a power reduction operation, which slows down the water dispensing speed of the water dispensing module.

[0170] In this embodiment, if the power of the user operating the corresponding vehicle-mounted water dispenser is the rated power of the water dispenser, and the sum of the rated power of the water dispenser and the first power is greater than the allowable power of the OBC, then the controller of the water dispenser will reduce the power of the water dispenser by a set value based on the rated power, so that the sum of the rated power of the water dispenser and the power of the computer is less than the allowable power of the OBC, thereby minimizing the triggering of the OBC's overcurrent protection. The controller's power reduction operation provides greater redundant power to the electrical equipment connected to the 220V socket. For example, the controller controls the second switching unit to be in the ON state, controlling the heating module to operate below its rated power, thus slowing down the water dispensing speed of the water dispenser's water dispensing module.

[0171] The following is based on Figure 3 The power supply system, taking the vehicle-mounted water dispenser as the first electrical device, the controller of the vehicle-mounted water dispenser as the power control device, and the induction cooker as the second electrical device, will be used as an example to explain Method 2. Please refer to Scenario 5 below.

[0172] Scenario 5: The user first plugs the induction cooker into a 220V socket, and then turns on the car water dispenser. The power control method for Scenario 5 may include steps 21 to 24 below.

[0173] Step 21: After the vehicle is powered on, the controller of the vehicle-mounted water dispenser starts working.

[0174] Step 22: The user adjusts the induction cooker's power to maximum (without exceeding the OBC's allowable power). The OBC sends the detected first power to the vehicle's water dispenser controller in real time. The first power is the OBC's output power.

[0175] Step 23: The user then operates the water dispenser to boil water.

[0176] Step 24: The controller of the vehicle water dispenser detects that the remaining power of the OBC is insufficient to meet its own heating needs and stops working.

[0177] In this embodiment, the remaining power of the OBC is the difference between the allowable power of the OBC and the first power. The remaining power of the OBC being insufficient to meet its own heating needs means that the remaining power of the OBC is less than the lower limit of the power when the OBC is in operation. Since the remaining power of the OBC is insufficient to meet the heating needs of the vehicle-mounted water dispenser, the controller of the vehicle-mounted water dispenser prevents the heating module from operating, thereby minimizing the triggering of the OBC's overcurrent protection and providing greater redundant power to the electrical equipment connected to the 220V socket.

[0178] The following is based on Figure 3 The power supply system, taking the vehicle-mounted water dispenser as the first electrical device, the controller of the vehicle-mounted water dispenser as the power control device, and the computer as the second electrical device as an example, will be used to explain Method 1. Please refer to Scenario 6 below.

[0179] Scenario 6: The user first uses a water dispenser to boil water, and then plugs the computer charger into a 220V socket to charge it. The power control method for Scenario 6 may include steps 31 to 34 below.

[0180] Step 31: After the vehicle is powered on, the controller of the vehicle-mounted water dispenser starts working.

[0181] Step 32: The user operates the car water dispenser to boil water, and during the boiling process, the computer charger is plugged into a 220V socket.

[0182] Before the computer charger is plugged into a 220V socket, the user can operate the car water dispenser to boil water, and the car water dispenser can operate at its rated power.

[0183] Step 33: The OBC sends the detected first power to the controller of the vehicle water dispenser in real time. The controller of the vehicle water dispenser detects that the power of the vehicle water dispenser is not equal to the first power, that is, it detects that there is a load connected to the 220V socket.

[0184] The first power is the output power of the OBC.

[0185] Step 34: When a load is detected connected to the 220V socket, the controller of the vehicle water dispenser immediately performs a power reduction operation to reduce the power of the vehicle water dispenser by a first value.

[0186] Specifically, after reducing the power of the vehicle's water dispenser by a certain value, the dispenser operates at the reduced power for a short period. This ensures that the sum of the water dispenser's power and the computer's power is less than or equal to the OBC's allowable power, thereby minimizing the risk of triggering the OBC's overcurrent protection.

[0187] The following is based on Figure 3 The power supply system, taking the vehicle-mounted water dispenser as the first electrical device, the controller of the vehicle-mounted water dispenser as the power control device, and the induction cooker as the second electrical device, is used as an example to illustrate Method 2. Please refer to Scenario 7 below.

[0188] Scenario 7: The car water dispenser and induction cooker are working simultaneously. While the car water dispenser is boiling water, the user continuously adjusts the induction cooker's settings. The operating power of the car water dispenser will change according to the user's adjustments, and the water dispensing speed of the car water dispenser's dispensing module will also change synchronously.

[0189] The vehicle-mounted water dispenser can be an instant hot water dispenser, and its water dispensing speed is positively correlated with its power. For example, when the power of the vehicle-mounted water dispenser is reduced by half, the water dispensing speed of the water module is also reduced by half.

[0190] The following is based on Figure 3 The power supply system, taking a vehicle-mounted water dispenser as the first electrical device, a power control device as the controller of the vehicle-mounted water dispenser, and an induction cooker as the second electrical device, is used as an example to illustrate a scenario in which the vehicle-mounted water dispenser malfunctions. Please refer to Scenario Eight below.

[0191] Scenario 8: If the car water dispenser malfunctions during operation, for example, if a mechanical failure of the water outlet module causes blockage, the controller of the car water dispenser will immediately disconnect the second switching unit, causing the heating module of the car water dispenser to stop heating and allocate all the output power of the OBC to the induction cooker, thereby ensuring the reliability of the induction cooker.

[0192] In the above scenario, the second electrical device is exemplified by a single electrical appliance (computer or induction cooker). It is understood that the second electrical device can include one or more electrical appliances. For example, the second electrical device can include at least one computer, at least one induction cooker, at least one microwave oven, and at least one rice cooker.

[0193] In this embodiment, in the scenario where "the second electrical device operates first, followed by the vehicle-mounted water dispenser," the vehicle-mounted water dispenser's controller determines the available power (the difference between the OBC's allowable power and the first power) when the water dispenser intervenes in power allocation by judging the first power output from the OBC and the OBC's allowable power. When the power of the second electrical device is high, the vehicle-mounted water dispenser's controller performs a power reduction operation or controls the water dispenser's heating module to not operate, avoiding triggering the OBC's overcurrent protection and extending the OBC's lifespan. In the scenario where "the vehicle-mounted water dispenser operates first, followed by the second electrical device," the vehicle-mounted water dispenser's controller identifies whether the second electrical device is connected by judging the first power output from the OBC and the water dispenser's own power (if the first power output from the OBC and the water dispenser's own power are not equal, then the second electrical device is identified as connected). When the second electrical device is identified as connected, the vehicle-mounted water dispenser's controller performs a power reduction operation, reserving more redundant power for the second electrical device to increase its power. When the second electrical device starts working, the OBC's overcurrent protection will not be triggered due to excessive power consumption of the second electrical device. In the scenario of "simultaneous operation of the vehicle-mounted water dispenser and the second electrical device," the controller of the vehicle-mounted water dispenser automatically adjusts its power based on the real-time power fluctuations of the second electrical device. This ensures that the sum of the power of the vehicle-mounted water dispenser and the power of the second electrical device is less than the allowable power of the OBC, thus avoiding triggering the OBC's overcurrent protection and guaranteeing that the vehicle-mounted water dispenser and the second electrical device can be used simultaneously, improving the reliability of their simultaneous operation. If a malfunction is detected in the vehicle-mounted water dispenser, the controller will preemptively disconnect the second switching unit of the vehicle-mounted water dispenser to prevent it from consuming excess power, ensuring that all the OBC's output power is allocated to the second electrical device, further improving the reliability of the second electrical device's operation.

[0194] The foregoing has described the application scenarios and methods provided by the embodiments of this application. The following provides the apparatus of the embodiments of this application. It is understood that the various apparatuses provided in the embodiments of this application, such as power control devices and vehicles, include hardware structures, software units, or combinations of hardware and software structures to perform the functions described in the above method embodiments. Those skilled in the art should readily recognize that the apparatus and its modules can be implemented in hardware or a combination of hardware and computer software in conjunction with the various functions described in the embodiments disclosed herein. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different apparatus implementations in different application scenarios to implement the aforementioned method embodiments, and different implementations of the apparatus should not be considered beyond the scope of the embodiments of this application.

[0195] Please see Figure 10 , Figure 10 This is a schematic diagram of a power control device provided in an embodiment of this application. Figure 10 As shown, the power control device 130 may include a communication unit 1001 and a processing unit 1002. The communication unit 1001 and the processing unit 1002 may be software, hardware, or a combination of software and hardware.

[0196] The communication unit 1001 can implement sending and / or receiving functions, and can also be described as a transceiver unit. The communication unit 1001 can also be a unit integrating an acquisition unit and a sending unit, wherein the acquisition unit is used to implement the receiving function, and the sending unit is used to implement the sending function. Optionally, the communication unit 1001 can be used to receive information sent by other devices, and can also be used to send information to other devices.

[0197] In one possible design, the power control device 130 may correspond to the above. Figure 6 The power control device in the illustrated method embodiment, such as power control device 130, can be an electronic device or a chip within an electronic device. The power control device 130 may include components for performing the above-described... Figure 6 The unit in the method embodiment shown is the one that performs the operation by the power control device, and each unit in the power control device 130 is respectively for implementing the above-mentioned... Figure 6 The operation performed by the power control device in the illustrated method embodiment is described below: The communication unit 1001 is used to obtain the first power, which is the output power of the power supply module.

[0198] The processing unit 1002 is used to control the power of the first electrical device according to the first power and the allowable power of the power supply module, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power.

[0199] The communication unit 1001 can communicate with the power supply module to obtain the output power of the power supply module.

[0200] The execution steps of the communication unit 1001 and processing unit 1002 in this design can be referred to the steps described above. Figure 6 The implementation method shown corresponds to the power control device in the method embodiment.

[0201] Regarding the technical effects of the implementation methods performed by the communication unit 1001 and the processing unit 1002 of this design, please refer to the description above. Figure 6 The technical effects of the illustrated method embodiments are described below.

[0202] exist Figure 10 In the described power control device 130, when the power of the first electrical device can be measured in real time but the power of the second electrical device cannot be measured in real time, the power of the first electrical device is controlled according to the first power and the allowable power of the power supply module, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power of the power supply module, thereby minimizing the triggering of the overcurrent protection of the power supply module and improving the reliability of the operation of the first and second electrical devices.

[0203] For cases where the power control device 130 described above can be an electronic device, please refer to [reference needed]. Figure 11 The diagram shows the structure of the electronic device.

[0204] It should be understood that Figure 11 The illustrated electronic device 110 is merely an example; the electronic device in this application embodiment may also include other components, or include components related to... Figure 11 Components with similar functions, or not necessarily including Figure 11 All components.

[0205] Electronic device 110 includes a transceiver interface 1101 and at least one processor 1102.

[0206] The electronic device 110 can correspond to a power control device. The transceiver interface 1101 is used for transmitting and receiving signals, and at least one processor 1102 executes program instructions, causing the electronic device 110 to implement the corresponding flow of the method executed by the corresponding device in the above method embodiments.

[0207] In one possible design, the electronic device 110 may correspond to the above. Figure 6 The power control device in the illustrated method embodiment, such as the electronic device 110, can be a power control device or a chip within a power control device. The electronic device 110 may include components for performing the operations executed by the power control device in the above method embodiment, and each component in the electronic device 110 is specifically designed to implement the operations executed by the power control device in the above method embodiment. Specifically, it can be as follows: The transceiver interface 1101 is used to obtain the first power, which is the output power of the power supply module.

[0208] The processor 1102 is configured to control the power of the first electrical device based on the first power and the allowable power of the power supply module, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power.

[0209] Regarding the transceiver interface 1101 and at least one processor 1102 of this design, the execution steps can be referred to the corresponding steps described above. Figure 6The implementation method shown corresponds to the power control device in the method embodiment.

[0210] Regarding the technical effects of the transceiver interface 1101 and the implementation methods executed by at least one processor 1102 of this design, please refer to the description above. Figure 6 The technical effects of the illustrated method embodiments are described below.

[0211] exist Figure 11 In the described electronic device 110, when the power of the first electrical device can be measured in real time but the power of the second electrical device cannot be measured in real time, the power of the first electrical device is controlled according to the first power and the allowable power of the power supply module, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power of the power supply module, thereby minimizing the triggering of the overcurrent protection of the power supply module and improving the reliability of the operation of the first and second electrical devices.

[0212] For cases where the power control device 130 described above can be a chip or a chip system, please refer to [reference needed]. Figure 12 The diagram shows the structure of the chip.

[0213] like Figure 12 As shown, chip 120 includes processor 1201 and interface 1202. The number of processors 1201 can be one or more, and the number of interfaces 1202 can be multiple. It should be noted that the functions of processor 1201 and interface 1202 can be implemented through hardware design, software design, or a combination of both; no restrictions are placed here.

[0214] Optionally, the chip 120 may also include a memory 1203 for storing necessary program instructions and data.

[0215] In one possible design, processor 1201 may be used to call an implementation program of the power control method provided in one or more embodiments of this application in a power control device from memory 1203 and execute the instructions included in the program.

[0216] Interface 1202 can be used to output the execution results of processor 1201. In this application, interface 1202 can specifically be used to output various messages or information of processor 1201.

[0217] The power control method provided by one or more embodiments of this application can be found in the foregoing. Figure 6 The various embodiments shown are not described in detail here.

[0218] The processor in this application embodiment can be a central processing unit (CPU), but it can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor.

[0219] The memory in this application embodiment is used to provide storage space, in which data such as operating system and computer programs can be stored. The memory includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or compact disc read-only memory (CD-ROM).

[0220] According to the method provided in the embodiments of this application, the embodiments of this application also provide a computer-readable storage medium storing a computer program. When the computer program is run on one or more processors, it can implement the above-mentioned... Figure 6 The method shown.

[0221] According to the method provided in the embodiments of this application, the embodiments of this application also provide a computer program product, which includes a computer program. When the computer program runs on a processor, it can achieve the above-mentioned... Figure 6 The method shown.

[0222] This application also provides a vehicle that includes at least one power control device 130, or electronic device 110, or chip 120. The vehicle may include the aforementioned power supply system 100.

[0223] Optionally, the vehicle may include commercial vehicles, passenger vehicles, industrial vehicles (such as forklifts, trailers, and tractors), and engineering vehicles (such as excavators, bulldozers, and cranes), etc., and this application embodiment does not limit this. The vehicle may be any of the following: electric vehicles, hybrid vehicles, and gasoline vehicles.

[0224] Optionally, the vehicle is used to achieve the above. Figure 6 The method shown.

[0225] Optionally, the above Figure 6 The method shown can be implemented as an executable file within the vehicle operating system (VOS).

[0226] This application also provides a power control device, including a processor and an interface. The processor is used to execute the methods in any of the above method embodiments.

[0227] It should be understood that the above-described processing device can be a chip. The units in the various device embodiments and the electronic devices in the method embodiments correspond completely, with corresponding modules or units executing corresponding steps. For example, the communication unit (transceiver) executes the receiving or sending steps in the method embodiments, while other steps besides sending and receiving can be executed by the processing unit (processor). The specific functions of each unit can be found in the corresponding method embodiments. There can be one or more processors.

[0228] It is understood that in the embodiments of this application, the electronic device may perform some or all of the steps in the embodiments of this application. These steps or operations are merely examples, and the embodiments of this application may also perform other operations or variations thereof. Furthermore, the steps may be performed in different orders as presented in the embodiments of this application, and it is not necessarily necessary to perform all the operations in the embodiments of this application.

[0229] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0230] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0231] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0232] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the contributing part, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0233] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A power supply system, characterized in that, The power supply system includes: a power supply module and a first electrical device; The power supply module is used to output a first power to supply power to the first electrical device and the second electrical device, wherein the second electrical device is an aftermarket part of the vehicle. The first electrical device is used to obtain the first power; The first electrical device is further configured to control the power of the first electrical device according to the first power and the allowable power of the power supply module, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power.

2. The power supply system according to claim 1, characterized in that, The power supply module includes: an AC power supply module or a DC power supply module.

3. The power supply system according to claim 2, characterized in that, The AC power supply module includes: an on-board charger (OBC) and a power battery; The OBC is used to convert the DC power output from the power battery into AC power, and the AC power is used to power the first electrical device and the second electrical device. The OBC is also used to acquire a first power and send the first power to the first electrical device, wherein the first power is the output power of the OBC.

4. The power supply system according to any one of claims 1 to 3, characterized in that, The power supply system further includes a first switching unit, and the power supply module is used to supply power to the first electrical device and the second electrical device through the first switching unit.

5. The power supply system according to any one of claims 1 to 4, characterized in that, The power supply system also includes an electronic control unit (ECU), which is used to acquire the first power sent by the power supply module and to transmit the first power to the first electrical device.

6. The power supply system according to any one of claims 1 to 5, characterized in that, The first electrical device is further configured to control its power based on the first power and the allowable power of the power supply module, such that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power, including: The first electrical device is further configured to determine the state of the first electrical device and the second electrical device based on the power of the first electrical device and the first power; The first electrical device is further configured to, when the first electrical device is in an operating state and the second electrical device is in an inactive state, control the first electrical device to operate at a second power, wherein the second power is the rated power of the first electrical device; or, The first electrical device is further configured to, when the first electrical device is in a non-operating state, the second electrical device is in an operating state, and a start command for the first electrical device is detected, control the first electrical device to operate at a third power or control the first electrical device to not operate, wherein the sum of the third power and the power of the second electrical device is less than or equal to the allowable power; or, The first electrical device is further configured to, when the first electrical device is in an operating state and the second electrical device switches from an inactive state to an operating state, reduce the power of the first electrical device so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power; or, The first electrical device is further configured to adjust the power of the first electrical device when both the first electrical device and the second electrical device are in operation, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power.

7. The power supply system according to claim 6, characterized in that, The first electrical device is further configured to, when the first electrical device is in a non-operating state, the second electrical device is in an operating state, and a start command for the first electrical device is detected, control the first electrical device to operate at a third power or control the first electrical device to not operate, including: The first electrical device is further configured to, when the first electrical device is in a non-operating state, the second electrical device is in an operating state, a start command for the first electrical device is detected, and the difference between the allowable power and the first power is greater than or equal to the lower power limit of the first electrical device in the operating state, control the first electrical device to operate at a third power, wherein the sum of the third power and the power of the second electrical device is less than or equal to the allowable power; or, The first electrical device is further configured to control the first electrical device to not work when the first electrical device is in a non-working state, the second electrical device is in a working state, a start command for the first electrical device is detected, and the difference between the allowable power and the first power is less than the lower limit of the power when the first electrical device is in a working state.

8. The power supply system according to claim 6 or 7, characterized in that, The first electrical device is further configured to reduce the power of the first electrical device when the first electrical device is in an operating state and the second electrical device switches from an inactive state to an operating state, including: The first electrical device is further configured to reduce the power of the first electrical device by a first value when the first electrical device is in a working state and the second electrical device switches from a non-working state to a working state; the first value is positively correlated with the power of the second electrical device, and the power of the second electrical device is the difference between the first power and the power of the first electrical device.

9. The power supply system according to any one of claims 1 to 8, characterized in that, The power of the first electrical device can be dynamically adjusted.

10. The power supply system according to any one of claims 1 to 9, characterized in that, The first electrical equipment includes: a vehicle-mounted water dispenser or a vehicle-mounted heating device.

11. The power supply system according to claim 10, characterized in that, When the first electrical device includes the vehicle-mounted water dispenser, the vehicle-mounted water dispenser includes a controller, a heating module, a second switching unit, and a water dispensing module; the power supply module supplies power to the heating module through the second switching unit; The controller is also used to control the second switching unit to be in an open state when a malfunction of the water outlet module is detected.

12. The power supply system according to claim 11, characterized in that, The water output speed of the water output module is positively correlated with the power of the first electrical device.

13. The power supply system according to any one of claims 1 to 12, characterized in that, The second electrical device includes at least one electrical device.

14. The power supply system according to any one of claims 1 to 13, characterized in that, The sum of the rated power of the first electrical device and the rated power of the second electrical device is greater than the allowable power; the rated power of the first electrical device is less than the allowable power, and the rated power of the second electrical device is less than the allowable power.

15. A power supply system, characterized in that, The power supply system includes: a power supply module, a first electrical device, and a controller; The power supply module is used to output a first power to supply power to the first electrical device and the second electrical device, wherein the second electrical device is an aftermarket part of the vehicle. The controller is used to acquire the first power; The controller is further configured to control the power of the first electrical device based on the first power and the allowable power of the power supply module, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power.

16. A power control method, characterized in that, The power control method is applied to the power supply system as described in any one of claims 1 to 15, and the power control method includes: Obtain the first power, which is the output power of the power supply module; Based on the first power and the allowable power of the power supply module, the power of the first electrical device is controlled so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power.

17. The method according to claim 16, characterized in that, The step of controlling the power of the first electrical device based on the first power and the allowable power of the power supply module, so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power, includes: The states of the first and second electrical devices are determined based on the power of the first electrical device and the first power. When the first electrical device is in operation and the second electrical device is not in operation, the first electrical device is controlled to operate at a second power, which is the rated power of the first electrical device; or, When the first electrical device is in a non-operating state, the second electrical device is in an operating state, and a start command for the first electrical device is detected, the system controls the first electrical device to operate at a third power or controls the first electrical device to be non-operating, wherein the sum of the third power and the power of the second electrical device is less than or equal to the allowable power; or, When the first electrical device is in operation and the second electrical device switches from a non-operational state to an operation state, the power of the first electrical device is reduced so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power; or, When the first electrical device is in operation and the second electrical device is in operation, the power of the first electrical device is adjusted so that the sum of the power of the first electrical device and the power of the second electrical device is less than or equal to the allowable power.

18. The method according to claim 17, characterized in that, When the first electrical device is in a non-operating state, the second electrical device is in an operating state, and a start command for the first electrical device is detected, controlling the first electrical device to operate at a third power or controlling the first electrical device to not operate, wherein the sum of the third power and the power of the second electrical device is less than or equal to the allowable power, includes: When the first electrical device is in a non-operating state, the second electrical device is in an operating state, a start command for the first electrical device is detected, and the difference between the allowable power and the first power is greater than or equal to the lower power limit of the first electrical device when it is in an operating state, the first electrical device is controlled to operate at a third power, wherein the sum of the third power and the power of the second electrical device is less than or equal to the allowable power; or, When the first electrical device is in a non-operating state, the second electrical device is in an operating state, a start command for the first electrical device is detected, and the difference between the allowable power and the first power is less than the lower limit of the power when the first electrical device is in an operating state, the first electrical device is controlled to not operate.

19. The method according to claim 17 or 18, characterized in that, The step of reducing the power of the first electrical device when the first electrical device is in operation and the second electrical device switches from a non-operational state to an operation state includes: When the first electrical device is in operation and the second electrical device switches from a non-operational state to an operational state, the power of the first electrical device is reduced by a first value; the first value is positively correlated with the power of the second electrical device, and the power of the second electrical device is the difference between the first power and the power of the first electrical device.

20. A power control device, characterized in that, The apparatus includes a unit for performing the method as described in any one of claims 16 to 19.

21. A power control device, characterized in that, The apparatus includes a processor for performing the method as described in any one of claims 16 to 19.

22. A chip, characterized in that, The chip includes logic circuitry and an interface, wherein the logic circuitry and the interface are coupled. The interface is used for inputting and / or outputting information, and the logic circuit is used for performing the method as described in any one of claims 16 to 19.

23. A vehicle, characterized in that, The vehicle includes a power supply system as described in any one of claims 1 to 14, or a power supply system as described in claim 15, or a power control device as described in claim 20, or a power control device as described in claim 21, or a chip as described in claim 22.

24. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program, which, when executed, performs the method as described in any one of claims 16 to 19.

25. A computer program product, characterized in that, The computer program product includes a computer program, which, when executed, performs the method as described in any one of claims 16 to 19.

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