An electric energy distribution method, apparatus and electronic device

Abstract

The application provides an electric energy distribution method and device and electronic equipment, and relates to the technical field of new energy sources.In the application, firstly, in response to the current vehicle starting the automatic power compensation function, the low-voltage electrical appliance loop is closed, and the power generation power of the vehicle-mounted solar cell is determined based on the load power of the low-voltage electrical appliance on the low-voltage electrical appliance loop; then, it is determined whether the power generation power is greater than a set first power threshold; if yes, the low-voltage electrical appliance loop is disconnected, the whole vehicle high-voltage loop is closed, and the power compensation of the power battery is performed based on the electric energy output by the whole vehicle high-voltage loop; if no, the power supply of the storage battery is performed based on the electric energy output by the low-voltage electrical appliance loop. In this way, the power compensation of the power battery can be effectively performed according to the power generation power of the solar cell, and the utilization rate of the power generation power of the solar cell is improved.

Description

Technical Field

[0001] This application relates to the field of new energy technology, and in particular to an energy distribution method, device and electronic equipment. Background Technology

[0002] With the maturation of the photovoltaic industry and technological innovation, more and more photovoltaic products have been widely used in various industries. For example, vehicle-mounted solar cells.

[0003] Currently, when using automotive solar cells in vehicles, the power output of these solar cells is typically divided into two outputs. Specifically, one output is connected to the vehicle's high-voltage circuit to replenish the battery when the vehicle is stationary or in a dormant state; the other output is connected to the low-voltage electrical circuit to provide power to the electrical loads when the vehicle is moving or stationary.

[0004] While existing technology indicates that the power output of vehicle-mounted solar cells can be split into two outputs—one through the vehicle's high-voltage circuit to replenish the power battery, and the other through the low-voltage electrical appliance circuit to replenish the load appliances—the output power of vehicle-mounted solar cells is affected by sunlight intensity. That is, the output power changes accordingly with different sunlight intensities. Therefore, there is a possibility that the output power of the vehicle-mounted solar cells may be insufficient to support the power losses of the relevant electrical appliances, resulting in ineffective replenishment of the power battery. Summary of the Invention

[0005] This invention application provides a power distribution method, apparatus, and electronic device to improve the utilization rate of solar cell power generation. The specific technical solution is as follows:

[0006] In a first aspect, this application provides a method for distributing electrical energy, including:

[0007] In response to the vehicle activating the automatic charging function, the low-voltage electrical circuit is closed, and the power generation capacity of the vehicle-mounted solar cell is determined based on the load power of the low-voltage electrical appliances in the low-voltage electrical circuit.

[0008] Determine whether the power generation is greater than a set first power threshold;

[0009] If so, disconnect the low-voltage electrical appliance circuit, close the vehicle high-voltage circuit, and replenish the power battery based on the electrical energy output from the vehicle high-voltage circuit;

[0010] If not, the battery is powered by the electrical energy output from the low-voltage electrical appliance circuit.

[0011] Based on the above method, the power generation capacity of the vehicle-mounted solar cell is determined according to the load power of the low-voltage electrical appliances in the low-voltage electrical appliance circuit. Then, based on the power generation capacity of the solar cell, it is determined whether to enter the high-voltage charging mode to charge the power battery, which can improve the utilization rate of the solar cell's power generation capacity.

[0012] In one possible implementation, determining the power generation capacity of the vehicle-mounted solar panel based on the load power of the low-voltage appliance in the low-voltage appliance circuit includes:

[0013] Adjust the load voltage across the low-voltage appliance and determine the voltage value across the low-voltage appliance when the load voltage is at a stable value;

[0014] Calculate the load power of the low-voltage appliance based on the voltage value and the load current of the low-voltage appliance;

[0015] The load power of the low-voltage electrical appliance is used as the power generation power of the vehicle-mounted solar cell.

[0016] Based on the above method, the power generation capacity of the vehicle-mounted solar cell can be determined based on the load power of the low-voltage electrical appliances.

[0017] In one possible implementation, replenishing the power battery based on the electrical energy output from the vehicle's high-voltage circuit includes:

[0018] The power generation capacity is tested according to the set testing cycle;

[0019] When the power generation is determined to be greater than the set second power threshold, the power battery is continuously recharged based on the electrical energy output from the vehicle's high-voltage circuit. The first power threshold represents the threshold for the vehicle to enter the high-voltage recharge condition, and the first power threshold is related to the power loss of the high-voltage electrical appliances on the vehicle's high-voltage circuit. The second power threshold represents the minimum power generation required for the vehicle to continuously recharge the power battery after entering the high-voltage recharge condition. The second power threshold is greater than the sum of the power losses of all high-voltage electrical appliances on the vehicle's high-voltage circuit, and less than the first power threshold.

[0020] Based on the above methods, it can be ensured that the power battery is effectively charged after the vehicle enters the high-voltage charging condition, thereby improving the utilization rate of solar cell power generation.

[0021] In one possible implementation, when it is determined that the power generation is less than or equal to the second power threshold, the method further includes:

[0022] Disconnect the high-voltage circuit of the vehicle and close the low-voltage electrical appliance circuit;

[0023] The battery is powered by the electrical energy output from the low-voltage electrical appliance circuit, and the power generation of the vehicle-mounted solar cell is detected at set time intervals to see if it is greater than the first power threshold.

[0024] Based on the above method, when the power generation of the vehicle's solar cells is insufficient to replenish the power battery, the output mode of the power generation can be switched to supply power to the vehicle's battery.

[0025] In one possible implementation, the first power threshold is associated with the power loss of high-voltage electrical appliances on the vehicle's high-voltage circuit, the high-voltage electrical appliances including at least:

[0026] Vehicle controller, battery controller, and power converter;

[0027] The first power threshold is greater than the sum of the power losses of the vehicle controller, the battery controller, and the power converter;

[0028] The first power threshold is greater than the second power threshold.

[0029] The above methods can ensure effective recharging of the power battery and improve the utilization rate of solar cell power generation.

[0030] Secondly, this application provides an electrical power distribution device, comprising:

[0031] The data acquisition module is used to close the low-voltage electrical appliance circuit in response to the current vehicle activating the automatic charging function, and determine the power generation power of the vehicle solar cell based on the load power of the low-voltage electrical appliance in the low-voltage electrical appliance circuit.

[0032] The power distribution module is used to determine whether the power generation is greater than a set first power threshold.

[0033] If so, disconnect the low-voltage electrical appliance circuit, close the vehicle high-voltage circuit, and replenish the power battery based on the electrical energy output from the vehicle high-voltage circuit;

[0034] If not, the battery is powered by the electrical energy output from the low-voltage electrical appliance circuit.

[0035] In one possible implementation, the data acquisition module is specifically used for:

[0036] Adjust the load voltage across the low-voltage appliance and determine the voltage value across the low-voltage appliance when the load voltage is at a stable value;

[0037] Calculate the load power of the low-voltage appliance based on the voltage value and the load current of the low-voltage appliance;

[0038] The load power of the low-voltage electrical appliance is used as the power generation power of the vehicle-mounted solar cell.

[0039] In one possible implementation, the power distribution module is specifically used for:

[0040] The power generation capacity is tested according to the set testing cycle;

[0041] When the power generation is determined to be greater than the set second power threshold, the power battery is continuously recharged based on the electrical energy output from the vehicle's high-voltage circuit. The first power threshold represents the threshold for the vehicle to enter the high-voltage recharge condition, and the first power threshold is related to the power loss of the high-voltage electrical appliances on the vehicle's high-voltage circuit. The second power threshold represents the minimum power generation required for the vehicle to continuously recharge the power battery after entering the high-voltage recharge condition. The second power threshold is greater than the sum of the power losses of all high-voltage electrical appliances on the vehicle's high-voltage circuit, and less than the first power threshold.

[0042] Thirdly, this application provides an electronic device, comprising:

[0043] Memory, used to store computer programs;

[0044] When a processor executes a computer program stored in the memory, it implements the steps of the above-described power distribution method.

[0045] Fourthly, this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the above-described power distribution method.

[0046] For the various aspects of the second to fourth aspects mentioned above, and the technical effects that each aspect may achieve, please refer to the above description of the technical effects that can be achieved for the first aspect or the various possible solutions in the first aspect, which will not be repeated here. Attached Figure Description

[0047] Figure 1 One of the flowcharts for an embodiment of the power distribution method provided in this application;

[0048] Figure 2 A schematic diagram of the application system architecture for the power distribution method provided in the embodiments of this application;

[0049] Figure 3 A connection diagram of a solar cell module, a solar controller, and a low-voltage electrical appliance is provided for an embodiment of this application;

[0050] Figure 4 A second flowchart illustrating an energy distribution method provided in this application embodiment;

[0051] Figure 5 This is a schematic diagram of the structure of an electrical power distribution device provided in an embodiment of this application;

[0052] Figure 6 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. The specific operational methods in the method embodiments can also be applied to the device embodiments or system embodiments. It should be noted that in the description of this application, "multiple" is understood as "at least two". "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. A connected to B can represent: A and B directly connected, and A and B connected through C. Furthermore, in the description of this application, terms such as "first" and "second" are used only for distinguishing the purpose of description and should not be construed as indicating or implying relative importance or order.

[0054] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0055] With the maturation of the photovoltaic industry and technological innovation, more and more photovoltaic products have been widely used in various industries. For example, vehicle-mounted solar cells.

[0056] Currently, when using automotive solar cells in vehicles, the power output of these solar cells is typically divided into two outputs. Specifically, one output is connected to the vehicle's high-voltage circuit to replenish the battery when the vehicle is stationary or in a dormant state; the other output is connected to the low-voltage electrical circuit to provide power to the electrical loads when the vehicle is moving or stationary.

[0057] While existing technology indicates that the power output of vehicle-mounted solar cells can be split into two outputs—one through the vehicle's high-voltage circuit to replenish the power battery, and the other through the low-voltage electrical appliance circuit to replenish the load appliances—the output power of vehicle-mounted solar cells is affected by sunlight intensity. That is, the output power changes accordingly with different sunlight intensities. Therefore, there is a possibility that the output power of the vehicle-mounted solar cells may be insufficient to support the power losses of the relevant electrical appliances, resulting in ineffective replenishment of the power battery.

[0058] In view of this, in order to effectively replenish the power battery based on the power output of the vehicle-mounted solar cells and improve the utilization rate of solar cell power, this application provides a power distribution method, which specifically includes: firstly, in response to the current vehicle activating the automatic power replenishment function, closing the low-voltage electrical appliance circuit, and determining the power output of the vehicle-mounted solar cells based on the load power of the low-voltage electrical appliances on the low-voltage electrical appliance circuit; then determining whether the power output is greater than a set first power threshold; if so, disconnecting the low-voltage electrical appliance circuit and closing the vehicle high-voltage circuit, replenishing the power battery based on the power output of the vehicle high-voltage circuit; if not, supplying power to the storage battery based on the power output of the low-voltage electrical appliance circuit.

[0059] The method provided in this application enables the solar controller to determine the power output of the vehicle's solar cells based on the load power of the low-voltage electrical appliances in the low-voltage electrical appliance circuit. Then, based on the power output of the solar cells, it determines whether to enter the high-voltage charging mode, that is, to disconnect the low-voltage electrical appliance circuit, close the vehicle's high-voltage circuit, and charge the power battery based on the electrical energy output from the vehicle's high-voltage circuit. This effectively charges the power battery and improves the utilization rate of the solar cell's power output.

[0060] Reference Figure 1 The diagram shown is a flowchart of an energy distribution method provided in an embodiment of this application. The method includes:

[0061] S1, in response to the current vehicle activating the automatic charging function, closes the low-voltage electrical appliance circuit and determines the power generation capacity of the vehicle's solar cells based on the load power of the low-voltage electrical appliances in the low-voltage electrical appliance circuit.

[0062] Firstly, the method provided in this application can be applied to Figure 2 The system architecture shown includes: a solar cell module and a solar controller; the solar controller is used to control the power output of the solar cell module to be output through a low-voltage electrical circuit or a vehicle high-voltage circuit. The vehicle high-voltage circuit is equipped with a power battery pack and an on-board DC-DC converter, and the low-voltage electrical circuit is equipped with a battery and low-voltage electrical appliances. This application does not impose specific restrictions on the types and quantities of devices installed in the vehicle high-voltage circuit and the low-voltage electrical circuit, and the method provided in this application can be operated in the solar controller.

[0063] In this embodiment of the application, before the solar controller replenishes the vehicle's power battery, it first needs to determine whether the vehicle has the automatic charging function enabled. In specific implementation, the automatic charging function can be automatically triggered when the vehicle is in a stationary sleep state.

[0064] When the solar controller determines that the vehicle's automatic charging function is activated, it first closes the low-voltage electrical circuit. Based on the load power of the low-voltage electrical appliances in the circuit, it determines the power generation capacity of the vehicle's solar panels. The steps for determining the power generation capacity of the vehicle's solar panels are as follows:

[0065] As attached Figure 3 As shown, Figure 3 This is a connection diagram of the solar cell module, solar controller, and low-voltage electrical appliance provided in the embodiments of this application. When the automatic charging function of the vehicle is activated, the solar controller first selects the output of the low-voltage electrical appliance circuit and conducts the low-voltage electrical appliance circuit by closing the low-voltage electrical appliance relay set in the low-voltage electrical appliance circuit. Then, the load voltage across the low-voltage electrical appliance is adjusted by PWM control to determine the voltage value applied across the low-voltage electrical appliance when the load is stable (the load voltage is at a stable value). Then, based on the voltage value applied across the low-voltage electrical appliance and the load current of the low-voltage electrical appliance at this time, the load power of the low-voltage electrical appliance can be calculated. In this application, the load current of the low-voltage electrical appliance can be obtained by connecting an ammeter in series in the low-voltage electrical appliance circuit. This application does not impose specific restrictions on the method of obtaining the load current.

[0066] After determining the load power of the low-voltage electrical appliances, the solar controller can use the load power of the low-voltage electrical appliances as the power generation power of the vehicle's solar cells.

[0067] In this application, the low-voltage electrical appliances may be blowers or PTC vehicle electrical appliances. This application does not impose specific restrictions on the type or quantity of low-voltage electrical appliances.

[0068] By performing load tests on low-voltage electrical appliances in a low-voltage electrical appliance circuit, and using the voltage value across the low-voltage electrical appliance and the load current of the low-voltage electrical circuit when the load is stable, the real-time power output of the vehicle-mounted solar cell can be determined, providing data for further selection of power output methods.

[0069] S2, determine whether the power generation is greater than the set first power threshold;

[0070] In this embodiment, after determining the power generation of the vehicle's solar cells, the solar controller can first determine whether the power generation exceeds a set first power threshold. The first power threshold represents the threshold for the vehicle to enter the high-voltage charging state, and it is related to the power loss of high-voltage electrical appliances in the vehicle's high-voltage circuit. These high-voltage electrical appliances can be the vehicle control unit (VCU), battery management system (BMS), or digital converter (DCDC). This application does not impose specific limitations on the number or type of high-voltage electrical appliances.

[0071] Because the solar controller activates high-voltage electrical components on the vehicle's high-voltage circuit when selecting output power to pre-charge the battery, and these components incur losses during operation, the solar panel's power output must exceed the power loss of the high-voltage components to ensure the vehicle can enter high-voltage charging mode and effectively charge the battery. In practice, if the high-voltage components on the vehicle's high-voltage circuit are VCU, BMS, and DC-DC converters, the first power threshold can be determined based on the sum of the power losses of these components, and this first power threshold must be greater than the sum of their power losses. For example, if the sum of the power losses of all high-voltage components is 120W, the first power threshold can be 350W. This application does not impose specific limitations on the size of the first power threshold; it can be adjusted according to actual application needs.

[0072] By setting a first power threshold, it is possible to determine whether the power generated by the solar cell is output through the vehicle's high-voltage circuit (high-voltage power supply mode) or the low-voltage electrical appliance circuit, thereby improving the utilization rate of the solar cell's power generation.

[0073] In this embodiment of the application, if the power generation is greater than the set first power threshold, then step S31 is executed. If the power generation is less than or equal to the set first power threshold, then step S32 is executed.

[0074] S31: Disconnect the low-voltage electrical appliance circuit, close the vehicle's high-voltage circuit, and replenish the power battery based on the electrical energy output from the vehicle's high-voltage circuit.

[0075] S32: Power the battery based on the electrical energy output from the low-voltage electrical appliance circuit.

[0076] Specifically, when the solar controller determines that the power generation is greater than the set first power threshold, it can first disconnect the low-voltage electrical circuit and close the high-voltage circuit of the vehicle, that is, determine that the vehicle has entered the high-voltage charging condition. Then, according to the set detection cycle, the power generation of the vehicle solar cell is detected. The detection cycle can be set to 1s, 5s, 20s or other arbitrary durations. This application does not impose any specific restrictions on this.

[0077] When the solar controller detects that the power output of the vehicle's solar cells exceeds the set second power threshold, it can continuously replenish the power battery based on the electrical energy output from the vehicle's high-voltage circuit.

[0078] In practical implementation, to ensure that the electrical energy output from the vehicle's high-voltage circuit can effectively replenish the power battery after the vehicle enters the high-voltage charging condition, a minimum power generation power (second power threshold) required for the vehicle to replenish the power battery after entering the high-voltage charging condition is set. This second power threshold must also be set to be greater than the sum of the power losses of all high-voltage electrical appliances on the vehicle's high-voltage circuit, and it must be less than the first power threshold. For example, assuming the second power threshold is set to 220W, when the solar controller determines that the vehicle has entered the high-voltage charging condition and detects that the solar cell's power generation power is greater than 220W, it will continuously replenish the power battery based on the electrical energy output from the vehicle's high-voltage circuit.

[0079] In this embodiment, when the solar controller determines that the vehicle has entered a high-voltage charging mode and detects that the power generation of the solar cells is less than or equal to a second power threshold, it can disconnect the high-voltage circuit of the vehicle and close the low-voltage electrical circuit, that is, switch the vehicle's high-voltage charging mode to a low-voltage power supply mode. When the solar controller is running in the low-voltage power supply mode, on the one hand, the solar controller can supply power to the battery according to the electrical energy output from the low-voltage electrical circuit; on the other hand, in order to improve the utilization rate of the solar cell's electrical energy, the solar controller will also detect whether the power generation of the vehicle's solar cells is greater than a first power threshold at set time intervals, that is, determine whether the vehicle has re-entered the high-voltage charging mode and replenishes the power battery with the electrical energy output from the vehicle's high-voltage circuit.

[0080] By setting a second power threshold, it can be ensured that after the vehicle enters the high-voltage charging condition, the electrical energy output by the vehicle's high-voltage circuit can effectively charge the power battery, thereby improving the utilization rate of solar cell power generation.

[0081] In this embodiment, when the solar controller determines that the power generation is less than or equal to a set first power threshold, it can first keep the low-voltage electrical appliance circuit closed and the high-voltage relay of the vehicle high-voltage circuit open, and supply power to the battery according to the electrical energy output by the low-voltage electrical appliance circuit; then, according to the set time interval, after a delay time T1, it detects the current power generation of the solar cell again, and controls the power generation of the solar cell to be output through the low-voltage electrical appliance circuit to supply power to the battery or through the vehicle high-voltage circuit to enter the high-voltage charging condition to charge the power battery.

[0082] To illustrate the power distribution method provided in this application in more detail, the following is a reference to the appendix. Figure 4 Explanation:

[0083] 1. In response to the vehicle activating the automatic power replenishment function, close the low-voltage electrical circuit (keeping the high-voltage circuit of the entire vehicle disconnected);

[0084] 2. Start low-voltage electrical appliances;

[0085] 3. Detect whether the current power generation of the vehicle's solar cells is greater than the first power threshold Y1;

[0086] 4.1 When the power generation is determined to be greater than Y1, close the high-voltage circuit of the whole vehicle, charge the power battery, and detect whether the current power generation of the solar cell is lower than the second power threshold Y2. If the power generation is lower than Y2, open the low-voltage electrical circuit (disconnect the high-voltage circuit of the whole vehicle), supply power to the battery, and after a set time interval T1, detect the power generation of the solar cell. If the power generation is greater than or equal to Y2, maintain the current power to continuously charge the power battery.

[0087] 4.2 When the power generation is determined to be less than or equal to Y1, power is supplied to the battery. After a certain time T1 delay according to the set time interval, the power generation of the solar cell is detected again.

[0088] In summary, the method provided in this application, by performing a load test on a low-voltage electrical appliance in a low-voltage electrical appliance circuit, and using the voltage value across the low-voltage electrical appliance and the load current of the low-voltage electrical circuit when the load is stable, can determine the real-time power output of the vehicle's solar cell; by setting a first power threshold and a second power threshold, it can ensure that when the vehicle enters a high-voltage charging condition, the power battery can be effectively charged through the electrical energy output from the vehicle's high-voltage circuit, thereby improving the utilization rate of solar power generation.

[0089] Based on the methods provided in the above embodiments, this application also provides an electrical energy distribution device, such as... Figure 5 The diagram shown is a structural schematic of an electrical energy distribution device according to an embodiment of this application. The device includes:

[0090] The data acquisition module 501 is used to close the low-voltage electrical appliance circuit in response to the current vehicle activating the automatic charging function, and determine the power generation power of the vehicle solar cell based on the load power of the low-voltage electrical appliance in the low-voltage electrical appliance circuit.

[0091] The power distribution module 502 is used to determine whether the power generation is greater than a set first power threshold.

[0092] If so, disconnect the low-voltage electrical appliance circuit, close the vehicle high-voltage circuit, and replenish the power battery based on the electrical energy output from the vehicle high-voltage circuit;

[0093] If not, the battery is powered by the electrical energy output from the low-voltage electrical appliance circuit.

[0094] In one possible implementation, the data acquisition module 501 is specifically used for:

[0095] Adjust the load voltage across the low-voltage appliance and determine the voltage value across the low-voltage appliance when the load voltage is at a stable value;

[0096] Calculate the load power of the low-voltage appliance based on the voltage value and the load current of the low-voltage appliance;

[0097] The load power of the low-voltage electrical appliance is used as the power generation power of the vehicle-mounted solar cell.

[0098] In one possible implementation, the power distribution module 502 is specifically used for:

[0099] The power generation capacity is tested according to the set testing cycle;

[0100] When the power generation is determined to be greater than the set second power threshold, the power battery is continuously recharged based on the electrical energy output from the vehicle's high-voltage circuit. The first power threshold represents the threshold for the vehicle to enter the high-voltage recharge condition, and the first power threshold is related to the power loss of the high-voltage electrical appliances on the vehicle's high-voltage circuit. The second power threshold represents the minimum power generation required for the vehicle to continuously recharge the power battery after entering the high-voltage recharge condition. The second power threshold is greater than the sum of the power losses of all high-voltage electrical appliances on the vehicle's high-voltage circuit, and less than the first power threshold.

[0101] Based on the same inventive concept, this application also provides an electronic device that can realize the function of the aforementioned power distribution device. (Refer to...) Figure 6 The electronic device includes:

[0102] At least one processor 601 and a memory 602 connected to at least one processor 601. In this embodiment, the specific connection medium between the processor 601 and the memory 602 is not limited. Figure 6 The example shown is the connection between processor 601 and memory 602 via bus 600. Bus 600 is... Figure 6 The connections between other components are indicated by thick lines and are for illustrative purposes only, not as limiting information. The 600 bus can be divided into address bus, data bus, control bus, etc., for ease of representation. Figure 6 The term is represented by a single thick line, but this does not imply that there is only one bus or one type of bus. Alternatively, the processor 601 can also be called a controller; there is no restriction on the name.

[0103] In this embodiment, memory 602 stores instructions executable by at least one processor 601. By executing the instructions stored in memory 602, at least one processor 601 can perform the power distribution method described above. Processor 601 can implement... Figure 5 The functions of each module in the device shown.

[0104] The processor 601 is the control center of the device. It can connect to various parts of the control device through various interfaces and lines. By running or executing instructions stored in memory 602 and calling data stored in memory 602, the processor can perform various functions and process data, thereby monitoring the device as a whole.

[0105] In one possible design, processor 601 may include one or more processing units. Processor 601 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications, and the modem processor mainly handles wireless communication. It is understood that the modem processor may also not be integrated into processor 601. In some embodiments, processor 601 and memory 602 may be implemented on the same chip; in some embodiments, they may also be implemented on separate chips.

[0106] The processor 601 can be a general-purpose processor, such as a central processing unit (CPU), digital signal processor, application-specific integrated circuit, field-programmable gate array or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, capable of implementing or executing the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the power distribution method disclosed in the embodiments of this application can be directly manifested as being executed by a hardware processor, or executed by a combination of hardware and software modules within the processor.

[0107] Memory 602, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules. Memory 602 may include at least one type of storage medium, such as flash memory, hard disk, multimedia card, card-type memory, random access memory (RAM), static random access memory (SRAM), programmable read-only memory (PROM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), magnetic storage, magnetic disk, optical disk, etc. Memory 602 can be any other medium capable of carrying or storing desired program code in the form of instructions or data structures that can be accessed by a computer, but is not limited thereto. In the embodiments of this application, memory 602 may also be a circuit or any other device capable of implementing storage functions for storing program instructions and / or data.

[0108] By designing and programming the processor 601, the code corresponding to the power distribution method described in the foregoing embodiments can be embedded into the chip, enabling the chip to execute the code during operation. Figure 1 The steps of the power distribution method in the illustrated embodiment are as follows. How to design and program the processor 601 is a technique well-known to those skilled in the art and will not be described further here.

[0109] Based on the same inventive concept, embodiments of this application also provide a storage medium storing computer instructions that, when executed on a computer, cause the computer to perform the power distribution method described above.

[0110] In some possible implementations, various aspects of the power distribution method provided in this application may also be implemented in the form of a program product, which includes program code that, when the program product is run on a device, causes the control device to perform the steps in the power distribution method according to the various exemplary embodiments of this application described above.

[0111] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0112] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0113] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0114] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0115] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A method for distributing electrical energy, characterized in that, include: In response to the vehicle being in a stationary sleep state and the automatic power replenishment function being activated, the low-voltage electrical appliance circuit is closed, and the power generation capacity of the vehicle-mounted solar cell is determined based on the load power of the low-voltage electrical appliances in the low-voltage electrical appliance circuit. Determine whether the power generation is greater than a set first power threshold; If so, disconnect the low-voltage electrical appliance circuit, close the vehicle high-voltage circuit, and test the power generation according to the set testing cycle; When the power generation is determined to be greater than the set second power threshold, the power battery is continuously replenished based on the electrical energy output from the high-voltage circuit of the vehicle. Wherein, the first power threshold represents the threshold for the vehicle to enter the high-voltage charging condition, and the first power threshold is related to the power loss of the high-voltage electrical appliances on the high-voltage circuit of the vehicle; the second power threshold represents the minimum power generation required for the power battery to continuously charge after the vehicle enters the high-voltage charging condition, and the second power threshold is greater than the sum of the power losses of all high-voltage electrical appliances on the high-voltage circuit of the vehicle, and less than the first power threshold. When the power generation is determined to be less than or equal to the second power threshold, the high-voltage circuit of the vehicle is disconnected, the low-voltage electrical circuit is closed, and the battery is powered based on the electrical energy output by the low-voltage electrical circuit. At a set time interval, the power generation of the vehicle solar cell is checked to see if it is greater than the first power threshold. If not, the battery is powered by the electrical energy output from the low-voltage electrical appliance circuit.

2. The method as described in claim 1, characterized in that, Determining the power generation capacity of the vehicle-mounted solar panel based on the load power of the low-voltage electrical appliances in the circuit includes: Adjust the load voltage across the low-voltage appliance and determine the voltage value across the low-voltage appliance when the load voltage is at a stable value; Calculate the load power of the low-voltage appliance based on the voltage value and the load current of the low-voltage appliance; The load power of the low-voltage electrical appliance is used as the power generation power of the vehicle-mounted solar cell.

3. The method as described in claim 1, characterized in that, The first power threshold is related to the power loss of the high-voltage electrical appliances in the high-voltage circuit of the vehicle, and the high-voltage electrical appliances include at least: Vehicle controller, battery controller, and power converter; The first power threshold is greater than the sum of the power losses of the vehicle controller, the battery controller, and the power converter; The first power threshold is greater than the second power threshold.

4. An electrical energy distribution device, characterized in that, include: The data acquisition module is used to respond to the current vehicle being in a stationary sleep state and the automatic charging function being activated, close the low-voltage electrical appliance circuit, and determine the power generation power of the vehicle solar cell based on the load power of the low-voltage electrical appliance in the low-voltage electrical appliance circuit. The power distribution module is used to determine whether the power generation is greater than a set first power threshold. If so, disconnect the low-voltage electrical appliance circuit, close the vehicle high-voltage circuit, and replenish the power battery based on the electrical energy output from the vehicle high-voltage circuit; If not, the battery is powered by the electrical energy output from the low-voltage electrical appliance circuit. Specifically, the power distribution module is used to: detect the power generation power according to a set detection cycle; when it is determined that the power generation power is greater than a set second power threshold, continuously replenish the power battery based on the power output of the vehicle's high-voltage circuit. The first power threshold represents the threshold for the vehicle to enter the high-voltage replenishment condition, and is associated with the power loss of high-voltage electrical appliances on the vehicle's high-voltage circuit. The second power threshold represents the minimum power generation required for continuous replenishment of the power battery after the vehicle enters the high-voltage replenishment condition, and is greater than the sum of the power losses of all high-voltage electrical appliances on the vehicle's high-voltage circuit and less than the first power threshold. The power distribution device further includes: when it is determined that the power generation power is less than or equal to the second power threshold, disconnecting the high-voltage circuit of the vehicle, closing the low-voltage electrical appliance circuit, supplying power to the battery based on the power output of the low-voltage electrical appliance circuit, and detecting whether the power generation power of the vehicle solar cell is greater than the first power threshold at set time intervals.

5. The apparatus as described in claim 4, characterized in that, The data acquisition module is specifically used for: Adjust the load voltage across the low-voltage appliance and determine the voltage value across the low-voltage appliance when the load voltage is at a stable value; Calculate the load power of the low-voltage appliance based on the voltage value and the load current of the low-voltage appliance; The load power of the low-voltage electrical appliance is used as the power generation power of the vehicle-mounted solar cell.

6. An electronic device, characterized in that, include: Memory, used to store computer programs; A processor, when executing a computer program stored in the memory, implements the method steps of any one of claims 1-3.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the method described in any one of claims 1-3.

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