Photovoltaic energy complementing method and device of vehicle, vehicle and storage medium

Abstract

The invention relates to the technical field of vehicles, in particular to a photovoltaic energy complementing method and device for a vehicle, the vehicle and a storage medium, and the method comprises the steps that whether the vehicle is in a power-on state or not is judged, and the power-on state comprises a driving state; if the vehicle is in the power-on state, high-voltage direct current is provided through a booster circuit of the photovoltaic controller to supply power to a high-voltage system of the vehicle, and meanwhile power is supplied to the high-voltage system of the vehicle through a power battery of the vehicle. Therefore, the problem that a photovoltaic power generation system can only complement energy for a low-voltage system and cannot complement energy for a high-voltage system in the vehicle running process in the related technology is solved, and the vehicle energy complement experience of a user is improved.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a photovoltaic energy replenishment method and device for a vehicle, a vehicle and a storage medium. Background Art

[0002] With the continuous development of photovoltaic technology, the efficiency of solar panels has increased and the cost has decreased. It has become a trend to use on-board photovoltaic power generation systems to replenish electric vehicles.

[0003] In the related art, solar panels are generally installed on vehicles to supply power to some electrical equipment of the vehicle.

[0004] However, in the related art, solar panels can only power low-voltage systems (such as air conditioners, car computers and other electrical equipment) when the vehicle is stopped, and cannot meet the demand for replenishing energy for the vehicle's high-voltage system during driving, which urgently needs to be solved. Summary of the invention

[0005] The present invention provides a photovoltaic energy replenishment method, device, vehicle and storage medium for a vehicle, so as to solve the problems in the related technology that high-voltage systems such as the vehicle power motor cannot be powered, and low-voltage systems can only be powered when the vehicle is stopped, and the demand for powering the high-voltage system during driving cannot be met, thereby improving the user's vehicle power replenishment experience.

[0006] A first aspect of the present invention provides a photovoltaic energy replenishment method for a vehicle, wherein the vehicle is provided with a photovoltaic module and a photovoltaic controller, wherein the photovoltaic controller includes a boost circuit and a buck circuit, wherein the method includes the following steps: determining whether the vehicle is in a powered-on state, wherein the powered-on state includes a driving state; if the vehicle is in the powered-on state, converting a first direct current output by the photovoltaic module into a second direct current that meets a preset high-voltage requirement through the boost circuit of the photovoltaic controller to power the high-voltage system of the vehicle, and at the same time powering the high-voltage system of the vehicle through the power battery of the vehicle.

[0007] Furthermore, in one embodiment, after determining whether the vehicle is in the power-on state, it also includes: if the vehicle is in the power-off state, determining whether the charge state of the battery of the vehicle is less than a first preset charge state; if the charge state of the battery is less than the first preset charge state, sending a first charging signal to the photovoltaic controller to charge the battery through the step-down circuit of the photovoltaic controller.

[0008] Furthermore, in one embodiment, after controlling the photovoltaic component to charge the battery through the photovoltaic controller, it also includes: determining whether the battery meets a preset stop charging condition; if the battery meets the preset stop charging condition, determining whether the charge state of the power battery of the vehicle is less than or equal to a second preset charge state; if the power battery is less than or equal to the second preset charge state, sending a second charging signal to the photovoltaic controller, and charging the power battery through the boost circuit of the photovoltaic controller.

[0009] Furthermore, in one embodiment, after determining that the vehicle is in the power-off state, it also includes: determining whether the power generation power of the photovoltaic component is less than the total power of the normal power controller when the vehicle is powered off and in sleep mode; if the power generation power of the photovoltaic component is less than the total power of the normal power controller when the vehicle is powered off and in sleep mode, then stopping charging the storage battery or the power battery through the photovoltaic controller.

[0010] Further, in one embodiment, the first preset state of charge is greater than the battery state of charge when the power battery is charging a storage battery.

[0011] According to the photovoltaic energy replenishment method for a vehicle in an embodiment of the present invention, when the vehicle is powered on, the boost circuit of the photovoltaic controller can convert the first direct current output by the photovoltaic module into a second direct current that meets the preset high-voltage requirement to power the vehicle's high-voltage system, and at the same time, the vehicle's power battery can power the vehicle's high-voltage system. This solves the problem that the existing photovoltaic power generation system can only replenish energy for the low-voltage system, but cannot replenish energy for the high-voltage system during vehicle driving, and improves the user's vehicle energy replenishment experience.

[0012] A second aspect of the present invention provides a photovoltaic energy replenishment device for a vehicle, wherein the vehicle is provided with a photovoltaic component and a photovoltaic controller, wherein the photovoltaic controller includes a boost circuit and a buck circuit, wherein the device includes: a judgment module, used to judge whether the vehicle is in a powered-on state, wherein the powered-on state includes a driving state; a power supply module, used to convert the first direct current output by the photovoltaic component into a second direct current that meets a preset high-voltage requirement through the boost circuit of the photovoltaic controller when the vehicle is in the powered-on state to power the vehicle's high-voltage system, and at the same time power the vehicle's high-voltage system through the vehicle's power battery.

[0013] Furthermore, in one embodiment, after determining whether the vehicle is in the power-on state, the power supply module is also used to: when the vehicle is in the power-off state, determine whether the charge state of the battery of the vehicle is less than a first preset charge state; if the charge state of the battery is less than the first preset charge state, send a first charging signal to the photovoltaic controller to charge the battery through the step-down circuit of the photovoltaic controller.

[0014] Furthermore, in one embodiment, after controlling the photovoltaic assembly to charge the battery through the photovoltaic controller, the power supply module is also used to: determine whether the battery meets a preset stop charging condition; if the battery meets the preset stop charging condition, determine whether the charge state of the power battery of the vehicle is less than or equal to a second preset charge state; if the power battery is less than or equal to the second preset charge state, send a second charging signal to the photovoltaic controller, and charge the power battery through the boost circuit of the photovoltaic controller.

[0015] Furthermore, in one embodiment, after determining that the vehicle is in the power-off state, the power supply module is also used to: determine whether the power generation power of the photovoltaic component is less than the total power of the normal power controller when the vehicle is powered off and in sleep mode; if the power generation power of the photovoltaic component is less than the total power of the normal power controller when the vehicle is powered off and in sleep mode, stop charging the storage battery or the power battery through the photovoltaic controller.

[0016] According to the photovoltaic energy replenishment device of the vehicle in the embodiment of the present invention, when the vehicle is in the power-on state, the first direct current output by the photovoltaic module can be converted into a second direct current that meets the preset high-voltage requirement through the boost circuit of the photovoltaic controller to power the high-voltage system of the vehicle, and the high-voltage system of the vehicle can be powered by the power battery of the vehicle at the same time. Thus, the problem that the existing photovoltaic power generation system can only replenish the low-voltage system but cannot replenish the high-voltage system during the vehicle driving is solved, and the user's vehicle energy replenishment experience is improved.

[0017] A third aspect of the present invention provides a vehicle, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the photovoltaic energy replenishment method for the vehicle as described in the above embodiment.

[0018] A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, the program being executed by a processor to implement the photovoltaic power replenishment method for a vehicle as described in the above embodiment.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0021] Figure 1 A flowchart of a photovoltaic energy replenishment method for a vehicle provided according to an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of a vehicle photovoltaic power generation and energy replenishment system provided according to a specific embodiment of the present invention;

[0023] Figure 3 A schematic diagram of another vehicle photovoltaic power generation and energy replenishment system provided according to a specific embodiment of the present invention;

[0024] Figure 4 A flowchart of a vehicle overall energy replenishment control method provided according to a specific embodiment of the present invention;

[0025] Figure 5 A block diagram of a photovoltaic energy replenishment device for a vehicle provided according to an embodiment of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of a vehicle provided according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0028] The following describes the photovoltaic energy replenishment method, device, vehicle and storage medium of the vehicle in the embodiment of the present invention with reference to the accompanying drawings. In view of the problem mentioned in the above background technology that it can only supply power to the low-voltage system, but cannot supply power to the high-voltage system such as the vehicle power motor, and can only replenish the low-voltage system first when the vehicle is stopped, and cannot meet the requirements of replenishing the high-voltage system during driving, the present invention provides a photovoltaic energy replenishment method for a vehicle. In this method, when the vehicle is in a powered-on state, the boost circuit of the photovoltaic controller can convert the first direct current output by the photovoltaic module into a second direct current that meets the preset high-voltage requirement to power the high-voltage system of the vehicle, and at the same time, the high-voltage system of the vehicle is powered by the power battery of the vehicle. In this way, the problem that the existing photovoltaic power generation system can only replenish power to the low-voltage system and cannot replenish power to the high-voltage system during the driving of the vehicle is solved.

[0029] Specifically, Figure 1A schematic flow chart of a photovoltaic energy replenishment method for a vehicle provided in an embodiment of the present invention.

[0030] In this embodiment, if Figure 2 and Figure 3 As shown, Figure 2 is a schematic diagram of a photovoltaic energy replenishment system for a vehicle according to a specific embodiment of the present invention, Figure 3 FIG. 1 is a schematic diagram of a photovoltaic power replenishment system for a vehicle according to another embodiment of the present invention.

[0031] Specifically, Figure 2 As shown in the figure, the photovoltaic energy replenishment system of the vehicle includes photovoltaic components, photovoltaic controllers, high-voltage systems and low-voltage systems. Among them, the photovoltaic components are generally photovoltaic panels embedded in the skylight glass, and the front hood or trunk cover covers the photovoltaic panels. It also includes a photovoltaic controller and high and low voltage wiring harnesses, which can match the original vehicle circuit and adopt energy replenishment control strategies to realize photovoltaic energy replenishment in vehicle driving, parking, sleeping and other situations.

[0032] Furthermore, if Figure 3 As shown, the photovoltaic energy replenishment system of a vehicle according to another embodiment of the present invention is composed of Figure 2 Consistent, Figure 3 The photovoltaic controller is mainly introduced in detail. Among them, the photovoltaic controller realizes the boost function through the internal BOOST circuit, and increases the power generation voltage of the photovoltaic module (for example, the voltage of a 600W photovoltaic module is generally 10-50V) to about 400V of a general electric vehicle, which is used to power the vehicle's power battery, drive motor, air conditioner and other high-voltage systems. The buck function is realized through the BUCK circuit, and the voltage is reduced to about 12V, which is used to power the vehicle's 12V battery, central control, instrumentation and other low-voltage systems. The full name of the PPT controller is "Maximum Power Point Tracking" (MPPT), which can detect the power generation voltage of the solar panel in real time and track the highest voltage and current value (VI), so that the system can charge the battery with maximum power output.

[0033] like Figure 1 As shown, the photovoltaic energy replenishment method for the vehicle includes the following steps:

[0034] In step S101 , it is determined whether the vehicle is in a powered-on state, wherein the powered-on state includes a driving state.

[0035] Furthermore, the power-on state also includes the working states of the vehicle's electronic components and high and low voltage systems, and the vehicle controller can determine whether it is in the power-on state.

[0036] In step S102, if the vehicle is in a powered-on state, the first direct current output by the photovoltaic component is converted into a second direct current that meets a preset high-voltage requirement to power the high-voltage system of the vehicle through the boost circuit of the photovoltaic controller, and the high-voltage system of the vehicle is powered by the power battery of the vehicle.

[0037] The second DC voltage should be greater than the first DC voltage. The preset high voltage requirement can be manually set by relevant technicians, or determined by experiments in vehicle testing, and is not specifically limited here.

[0038] Furthermore, in one embodiment, after determining whether the vehicle is in a powered-on state, it also includes: if the vehicle is in a powered-off state, determining whether the state of charge of the vehicle's battery is less than a first preset state of charge; if the state of charge of the battery is less than the first preset state of charge, sending a first charging signal to the photovoltaic controller to charge the battery through the step-down circuit of the photovoltaic controller.

[0039] Among them, when the vehicle is in a power-off state, only the low-voltage system of the vehicle is working. The battery SOC is detected by the low-voltage energy management unit to determine whether charging is needed. When charging is needed, a signal is sent to the photovoltaic controller through the on-board network, and the photovoltaic controller provides low-voltage DC power to charge the battery.

[0040] Furthermore, in one embodiment, after controlling the photovoltaic assembly to charge the battery through the photovoltaic controller, it also includes: determining whether the battery meets the preset stop charging condition; if the battery meets the preset stop charging condition, determining whether the charge state of the vehicle's power battery is less than or equal to a second preset charge state; if the power battery is less than or equal to the second preset charge state, sending a second charging signal to the photovoltaic controller, and charging the power battery through the boost circuit of the photovoltaic controller.

[0041] Among them, when the battery is fully charged, the battery management unit (BMS) detects the power battery SOC to determine whether charging is needed. When charging is needed, the surplus power of photovoltaic power generation is provided by the photovoltaic controller with high-voltage direct current, which supplies power to the high-voltage system together with the power battery.

[0042] It should be noted that in order to prevent the power battery from charging the storage battery first and wasting the power battery power, the low-voltage battery voltage lower limit threshold TBD1 must be greater than the threshold TBD0 for charging the low-voltage battery by the power battery through the DC / DC converter.

[0043] Furthermore, in one embodiment, after determining that the vehicle is in a power-off state, it also includes: determining whether the power generation power of the photovoltaic component is less than the total power of the normal power controller when the vehicle is powered off and in sleep mode; if the power generation power of the photovoltaic component is less than the total power of the normal power controller when the vehicle is powered off and in sleep mode, then stopping charging the storage battery or the power battery through the photovoltaic controller.

[0044] Among them, when the vehicle is in a power-off state and the photovoltaic power generation power is less than the total power of the normal power controller when the vehicle is powered off and in sleep mode, the photovoltaic controller does not output power to the outside and does not wake up the related sleep controllers. Otherwise, the photovoltaic controller outputs power to the outside.

[0045] It should be noted that the first preset state of charge and the second preset state of charge may be manually set by a person skilled in the art, or may be determined by experimental data, and are not specifically limited here.

[0046] Further, in one embodiment, the first preset state of charge is greater than the state of charge of the storage battery when the power battery charges the storage battery.

[0047] To facilitate those skilled in the art to further understand the photovoltaic energy replenishment method for a vehicle in an embodiment of the present invention, the method will be described in detail below in conjunction with a specific embodiment.

[0048] Figure 4 The present invention is a flowchart of a photovoltaic energy replenishment method for a vehicle according to a specific embodiment of the present invention.

[0049] In step S401, it is determined whether the vehicle is in a power-off state. If the vehicle is not in a power-off state, step S402 is executed, and if the vehicle is in a power-off state, step S404 is executed.

[0050] In step S402, the photovoltaic controller outputs high voltage direct current.

[0051] In step S403, the power battery and photovoltaic power generation together supply power to the high voltage system.

[0052] In step S404, the energy management unit is awakened.

[0053] In step S405, the state of charge of the low-voltage battery is detected.

[0054] In step S406, it is determined whether the SOC of the low-voltage battery TBD1 is less than or equal to the SOC of the power battery. If it is less than or equal to the SOC of the power battery, step S407 is executed. If it is greater than the SOC of the power battery, step S411 is executed.

[0055] In step S407 , the battery management system BMS is awakened to detect the power battery SOC.

[0056] In step S408, it is determined whether the power battery SOC is less than or equal to TBD2, if the power battery SOC is less than or equal to TBD2, step S409 is executed. If the power battery SOC is greater than TBD2, step S405 is executed.

[0057] In step S409, the photovoltaic controller outputs high voltage direct current.

[0058] In step S410, the power battery is charged via the PDU.

[0059] In step S411, the SOC of the low-voltage battery TBD1 is greater than that of the power battery, and the photovoltaic controller outputs low-voltage direct current.

[0060] In step S412, the low-voltage battery is directly charged.

[0061] In step S413, it is determined whether the low voltage battery TBD1 is less than or equal to the power battery SOC. If so, step S407 is executed. If greater than the power battery SOC, the measurement is repeated until the low voltage battery TBD1 is less than or equal to the power battery SOC.

[0062] In this way, the photovoltaic power generation system can replenish energy for the vehicle's high-voltage system during operation, thereby increasing the vehicle's mileage and meeting the user's energy replenishment needs.

[0063] According to the photovoltaic energy replenishment method for a vehicle in an embodiment of the present invention, when the vehicle is powered on, the boost circuit of the photovoltaic controller can convert the first direct current output by the photovoltaic module into a second direct current that meets the preset high-voltage requirement to power the vehicle's high-voltage system, and at the same time, the vehicle's power battery can power the vehicle's high-voltage system. This solves the problem that the existing photovoltaic power generation system can only replenish energy for the low-voltage system, but cannot replenish energy for the high-voltage system during vehicle driving, and improves the user's vehicle energy replenishment experience.

[0064] Next, a photovoltaic energy replenishment device for a vehicle according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0065] Figure 5 It is a block diagram of a photovoltaic energy replenishment device for a vehicle according to an embodiment of the present invention.

[0066] like Figure 5 As shown, the photovoltaic energy replenishment device 10 of the vehicle includes: a judgment module 100 and a power supply module 200.

[0067] Among them, the judgment module 100 is used to judge whether the vehicle is in a powered-on state, and the powered-on state includes a driving state; the power supply module 200 is used to convert the first direct current output by the photovoltaic component into a second direct current that meets the preset high-voltage requirement through the boost circuit of the photovoltaic controller when the vehicle is in a powered-on state to power the vehicle's high-voltage system, and at the same time power the vehicle's high-voltage system through the vehicle's power battery.

[0068] Furthermore, in one embodiment, the power supply module 200 is also used to: if the vehicle is in a power-off state, determine whether the state of charge of the vehicle's battery is less than a first preset state of charge; if the state of charge of the battery is less than the first preset state of charge, send a first charging signal to the photovoltaic controller to charge the battery through the step-down circuit of the photovoltaic controller.

[0069] Furthermore, in one embodiment, the power supply module 200 is also used to: determine whether the battery meets the preset stop charging condition; if the battery meets the preset stop charging condition, determine whether the charge state of the vehicle's power battery is less than or equal to a second preset charge state; if the power battery is less than or equal to the second preset charge state, send a second charging signal to the photovoltaic controller, and charge the power battery through the boost circuit of the photovoltaic controller.

[0070] Furthermore, in one embodiment, the power supply module 200 is also used to: determine whether the power generation power of the photovoltaic component is less than the total power of the normal power controller when the vehicle is powered off and in sleep mode; if the power generation power of the photovoltaic component is less than the total power of the normal power controller when the vehicle is powered off and in sleep mode, stop charging the storage battery or the power battery through the photovoltaic controller.

[0071] Further, in one embodiment, the first preset state of charge is greater than the state of charge of the storage battery when the power battery charges the storage battery.

[0072] It should be noted that the above explanation of the embodiment of the photovoltaic power replenishment method for a vehicle is also applicable to the photovoltaic power replenishment device for the vehicle in this embodiment, and will not be repeated here.

[0073] According to the photovoltaic energy replenishment device of the vehicle of the embodiment of the present invention, it is possible to determine whether the vehicle is in the power-on state. When the vehicle is in the power-on state, the first direct current output by the photovoltaic module is converted into the second direct current that meets the preset high-voltage requirement through the boost circuit of the photovoltaic controller to power the high-voltage system of the vehicle, and at the same time, the high-voltage system of the vehicle is powered by the power battery of the vehicle. Thus, the problem that the existing photovoltaic power generation system can only replenish the low-voltage system and cannot replenish the high-voltage system during the vehicle driving is solved, and the user's vehicle energy replenishment experience is improved.

[0074] Figure 6 A schematic diagram of the structure of a vehicle provided in an embodiment of the present invention. The vehicle may include:

[0075] A memory 601 , a processor 602 , and a computer program stored in the memory 601 and executable on the processor 602 .

[0076] When the processor 602 executes the program, the photovoltaic energy replenishment method for the vehicle provided in the above embodiment is implemented.

[0077] Furthermore, the vehicle also includes:

[0078] The communication interface 603 is used for communication between the memory 601 and the processor 602 .

[0079] The memory 601 is used to store computer programs that can be executed on the processor 602 .

[0080] The memory 601 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0081] If the memory 601, the processor 602 and the communication interface 603 are implemented independently, the communication interface 603, the memory 601 and the processor 602 can be connected to each other through a bus and communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 6 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0082] Optionally, in a specific implementation, if the memory 601, the processor 602 and the communication interface 603 are integrated on a chip, the memory 601, the processor 602 and the communication interface 603 can communicate with each other through an internal interface.

[0083] The processor 602 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention.

[0084] An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, wherein the program, when executed by a processor, implements the above-mentioned photovoltaic energy replenishment method for a vehicle.

[0085] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0086] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "N" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0087] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present invention belong.

[0088] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0089] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

Claims

1. A photovoltaic energy replenishment method for a vehicle, characterized in that: The vehicle is provided with a photovoltaic assembly and a photovoltaic controller, the photovoltaic controller includes a boost circuit and a buck circuit, wherein the method includes the following steps: Determining whether the vehicle is in a powered-on state, wherein the powered-on state includes a driving state; If the vehicle is in the power-on state, the first direct current output by the photovoltaic component is converted into a second direct current that meets the preset high-voltage requirement to power the high-voltage system of the vehicle through the boost circuit of the photovoltaic controller, and the high-voltage system of the vehicle is also powered by the power battery of the vehicle.

2. The method according to claim 1, characterized in that After determining whether the vehicle is in the power-on state, the method further includes: If the vehicle is in a power-off state, determining whether the state of charge of the battery of the vehicle is less than a first preset state of charge; If the state of charge of the storage battery is less than the first preset state of charge, a first charging signal is sent to the photovoltaic controller to charge the storage battery through the step-down circuit of the photovoltaic controller.

3. The method according to claim 2, characterized in that After the photovoltaic controller controls the photovoltaic assembly to charge the battery, the method further includes: Determining whether the battery meets a preset charging stop condition; If the battery meets the preset stop charging condition, determine whether the state of charge of the power battery of the vehicle is less than or equal to a second preset state of charge If the power battery is less than or equal to the second preset state of charge, a second charging signal is sent to the photovoltaic controller, and the power battery is charged through the boost circuit of the photovoltaic controller.

4. The method according to claim 2, characterized in that: After determining that the vehicle is in the power-off state, the method further includes: Determining whether the power generation power of the photovoltaic assembly is less than the total power of the normal power controller when the vehicle is powered off and in sleep mode; If the power generation power of the photovoltaic assembly is less than the total power of the normal power controller when the vehicle is powered off and in sleep mode, the photovoltaic controller stops charging the storage battery or the power battery.

5. The method according to claim 2, characterized in that: The first preset state of charge is greater than the battery state of charge when the power battery charges the storage battery.

6. A photovoltaic energy replenishment device for a vehicle, characterized in that: The vehicle is provided with a photovoltaic assembly and a photovoltaic controller, the photovoltaic controller includes a boost circuit and a buck circuit, and the device includes: A judging module, used to judge whether the vehicle is in a powered-on state, wherein the powered-on state includes a driving state; A power supply module is used to convert the first direct current output by the photovoltaic component into a second direct current that meets the preset high-voltage requirement to power the high-voltage system of the vehicle through the boost circuit of the photovoltaic controller when the vehicle is in the power-on state, and at the same time, the high-voltage system of the vehicle is powered by the power battery of the vehicle.

7. The photovoltaic power supply device for a vehicle according to claim 6, characterized in that: After determining whether the vehicle is in the power-on state, the power supply module is further used to: When the vehicle is in a power-off state, determining whether a state of charge of a battery of the vehicle is less than a first preset state of charge; If the state of charge of the storage battery is less than the first preset state of charge, a first charging signal is sent to the photovoltaic controller to charge the storage battery through the step-down circuit of the photovoltaic controller.

8. The photovoltaic energy replenishment device for a vehicle according to claim 6, characterized in that: After the photovoltaic controller controls the photovoltaic assembly to charge the battery, the power supply module is further used to: Determining whether the battery meets a preset charging stop condition; If the battery meets the preset stop charging condition, determining whether the state of charge of the power battery of the vehicle is less than or equal to a second preset state of charge; If the power battery is less than or equal to the second preset state of charge, a second charging signal is sent to the photovoltaic controller, and the power battery is charged through the boost circuit of the photovoltaic controller.

9. A vehicle, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the photovoltaic energy replenishment method for a vehicle as described in any one of claims 1 to 5.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the photovoltaic energy replenishment method for a vehicle as described in any one of claims 1 to 5.

Images