Charging system, charging method, storage medium and vehicle for photovoltaic automobile

Abstract

The application relates to a photovoltaic vehicle charging system, a charging method, a storage medium and a vehicle. The photovoltaic vehicle charging system belongs to the technical field of new energy and comprises a power battery system, which is used for issuing a charging instruction to a photovoltaic charging module when the photovoltaic charging module meets a charging condition, and controlling the state of a photovoltaic contactor in the power battery system according to the charging instruction; the photovoltaic charging module is electrically connected with the power battery system, is used for receiving the charging instruction issued by the power battery system when the photovoltaic charging module meets the charging condition, and controlling the state of the photovoltaic contactor in the photovoltaic charging module according to the charging instruction, so as to control the photovoltaic charging module to charge the power battery of the power battery system; and the photovoltaic charging interface of the photovoltaic charging module is connected to a connection circuit between the power battery system and a power load module, so that the vehicle can be directly charged by photovoltaic power, and the utilization of green energy during charging of the electric vehicle is facilitated.

Description

Technical Field

[0001] This disclosure relates to the field of new energy technology, and in particular to a charging system for a photovoltaic vehicle, a charging method for a photovoltaic vehicle, a storage medium, and a vehicle. Background Technology

[0002] Photovoltaic power generation is a technology that converts solar energy into electrical energy, and it is characterized by its green and environmentally friendly nature. In recent years, stationary photovoltaic power generation has been widely used globally. However, the application of photovoltaic power generation in automobiles is relatively limited. Currently, electric vehicles (including pure electric vehicles and hybrid electric vehicles, referred to as electric vehicles in this article) need to be connected to the power grid and parked at fixed points to charge their batteries. Adding photovoltaic modules and controllers to electric vehicles would enable photovoltaic charging. Summary of the Invention

[0003] In view of this, the present disclosure aims to provide a charging system for a photovoltaic vehicle, a charging method for a photovoltaic vehicle, a storage medium, and a vehicle.

[0004] The technical solution disclosed herein is implemented as follows:

[0005] In one aspect, this disclosure provides a charging system for a photovoltaic vehicle.

[0006] The charging system for a photovoltaic vehicle provided in this disclosure includes:

[0007] The power battery system is used to receive a charging request when the photovoltaic charging module meets the charging conditions, and to issue a charging command to the photovoltaic charging module based on the charging request, and to control the state of the photovoltaic contactor in the power battery system according to the charging request.

[0008] A photovoltaic charging module is electrically connected to the power battery system. When the photovoltaic charging module meets the charging conditions, it receives a charging command issued by the power battery system and controls the state of the photovoltaic contactor in the photovoltaic charging module according to the charging command, so as to regulate the photovoltaic charging module to charge the power battery of the power battery system.

[0009] The power load module is electrically connected to the power battery system and is used to receive power from the power battery system; wherein, the photovoltaic charging interface of the photovoltaic charging module is connected to the connection circuit between the power battery system and the power load module.

[0010] In some embodiments, a pre-charging circuit is connected in series in the connection circuit between the power battery system and the electrical load module; wherein, the pre-charging circuit includes a first main positive contactor; the first main positive contactor is connected in series in the connection circuit between the power battery system and the electrical load module;

[0011] The circuit between the first main positive contactor and the electrical load module is connected to a photovoltaic fuse circuit; the photovoltaic fuse circuit includes a first photovoltaic contactor and a fuse connected in series; the first photovoltaic contactor is connected to the positive terminal of the power battery of the power battery system.

[0012] A second main positive contactor is connected in series in the connection circuit between the access point of the first photovoltaic contactor and the electrical load module.

[0013] In some embodiments, a pre-charging circuit is connected in series in the connection circuit between the power battery system and the electrical load module; wherein, the pre-charging circuit includes a first main positive contactor; the first main positive contactor is connected in series in the connection circuit between the power battery system and the electrical load module;

[0014] The circuit between the positive terminal of the power battery in the power battery system and the first main positive contactor is connected to a photovoltaic fuse circuit; the photovoltaic fuse circuit includes a first photovoltaic contactor and a fuse connected in series; the first photovoltaic contactor is connected to the positive terminal of the power battery in the power battery system.

[0015] In some embodiments, the photovoltaic charging module includes a photovoltaic charging interface, a boost module, and a photovoltaic panel;

[0016] The photovoltaic charging interface is connected to the boost module, and the boost module is connected to the photovoltaic panel;

[0017] The photovoltaic charging interface has a first connection end and a second connection end; the first connection end of the photovoltaic charging interface is connected to the fuse of the photovoltaic fuse circuit; the second connection end of the photovoltaic charging interface is connected to the negative terminal of the power battery of the power battery system.

[0018] In some embodiments, a second photovoltaic contactor is connected in series in the connection circuit between the photovoltaic charging interface and the boost module;

[0019] The pre-charge circuit includes a pre-charge resistor and a pre-charge contactor.

[0020] The pre-charge resistor and the pre-charge contactor are connected in series and then connected in parallel with the first main positive contactor;

[0021] A main negative contactor is connected in series between the second connection terminal of the photovoltaic charging interface and the negative terminal of the power battery.

[0022] Secondly, this disclosure provides a charging method for a photovoltaic vehicle, applied to a charging system for a photovoltaic vehicle, the charging system including a power battery system, a photovoltaic charging module, and an electrical load module; wherein, the photovoltaic charging interface of the photovoltaic charging module is connected to the connection circuit between the power battery system and the electrical load module;

[0023] The charging method includes:

[0024] When the photovoltaic charging module meets the charging conditions, the power battery system receives the charging request from the photovoltaic charging module, issues a charging command to the photovoltaic charging module based on the charging request, and controls the state of the photovoltaic contactor in the power battery system according to the charging request.

[0025] After receiving the charging command issued by the power battery system, the photovoltaic contactor in the photovoltaic charging module is controlled according to the charging command to regulate the photovoltaic charging module to charge the power battery of the power battery system through the photovoltaic charging interface.

[0026] In some embodiments, a pre-charging circuit is connected in series in the connection circuit between the power battery system and the electrical load module; wherein the pre-charging circuit includes a first main positive contactor; the first main positive contactor is connected in series in the connection circuit between the power battery system and the electrical load module; wherein the circuit between the first main positive contactor and the electrical load module is connected to a photovoltaic fuse circuit; wherein the photovoltaic fuse circuit includes a first photovoltaic contactor and a fuse connected in series; the first photovoltaic contactor is connected to the positive terminal of the power battery of the power battery system; a second main positive contactor is connected in series in the connection circuit between the connection point of the first photovoltaic contactor and the electrical load module; the photovoltaic charging module includes a photovoltaic charging interface. The system includes a boost module and a photovoltaic panel; the photovoltaic charging interface is connected to the boost module, and the boost module is connected to the photovoltaic panel; the photovoltaic charging interface has a first connection end and a second connection end; the first connection end of the photovoltaic charging interface is connected to the fuse of the photovoltaic fuse circuit; the second connection end of the photovoltaic charging interface is connected to the negative terminal of the power battery system; a second photovoltaic contactor is connected in series in the connection circuit between the photovoltaic charging interface and the boost module; the pre-charging circuit includes a pre-charging resistor and a pre-charging contactor; the pre-charging resistor and the pre-charging contactor are connected in series and then in parallel with the first main positive contactor; a main negative contactor is connected in series in the circuit between the second connection end of the photovoltaic charging interface and the negative terminal of the power battery.

[0027] The step of controlling the state of the photovoltaic contactor in the power battery system according to the charging command includes:

[0028] If the vehicle is in the OFF position, then the first main positive contactor, the main negative contactor, and the first photovoltaic contactor of the power battery system are closed; or,

[0029] If the vehicle is in the ON position, the first photovoltaic contactor of the power battery system and the second photovoltaic contactor in the photovoltaic charging module will be closed.

[0030] The step of controlling the state of the photovoltaic contactor in the photovoltaic charging module according to the charging command includes:

[0031] If the vehicle is in the OFF position, then the second photovoltaic contactor within the photovoltaic charging module will close; or,

[0032] If the vehicle is in the ON position, the second main positive contactor will be closed.

[0033] In some embodiments, a pre-charging circuit is connected in series in the connection circuit between the power battery system and the electrical load module; wherein, the pre-charging circuit includes a first main positive contactor; the first main positive contactor is connected in series in the connection circuit between the power battery system and the electrical load module; wherein, the circuit between the positive terminal of the power battery of the power battery system and the first main positive contactor is connected to a photovoltaic fuse circuit; wherein, the photovoltaic fuse circuit includes a first photovoltaic contactor and a fuse connected in series; the first photovoltaic contactor is connected to the positive terminal of the power battery of the power battery system, and the photovoltaic charging module includes a photovoltaic charging interface, a boost module, and a photovoltaic panel; the photovoltaic charging interface... The photovoltaic charging interface is connected to the boost module, which in turn is connected to the photovoltaic panel. The photovoltaic charging interface has a first connection terminal and a second connection terminal. The first connection terminal of the photovoltaic charging interface is connected to the fuse in the photovoltaic fuse circuit. The second connection terminal of the photovoltaic charging interface is connected to the negative terminal of the power battery in the power battery system. A second photovoltaic contactor is connected in series in the connection circuit between the photovoltaic charging interface and the boost module. The pre-charging circuit includes a pre-charging resistor and a pre-charging contactor. The pre-charging resistor and the pre-charging contactor are connected in series and then in parallel with the first main positive contactor. A main negative contactor is connected in series in the circuit between the second connection terminal of the photovoltaic charging interface and the negative terminal of the power battery.

[0034] The step of controlling the state of the photovoltaic contactor in the power battery system according to the charging command includes:

[0035] If the vehicle is in the OFF position, then the main negative contactor and the first photovoltaic contactor of the power battery system are closed; or,

[0036] If the vehicle is in the ON position, the first photovoltaic contactor of the power battery system is closed;

[0037] The step of controlling the state of the photovoltaic contactor in the photovoltaic charging module according to the charging command includes:

[0038] If the vehicle is in the OFF position, then the second photovoltaic contactor within the photovoltaic charging module will close; or,

[0039] If the vehicle is in the ON position, the second photovoltaic contactor in the photovoltaic charging module will be closed.

[0040] In some embodiments, including:

[0041] If the photovoltaic charging module does not meet the charging conditions, and the vehicle is in the OFF position, then the first main positive contactor, the main negative contactor, the first photovoltaic contactor of the power battery system, and the second photovoltaic contactor in the photovoltaic charging module are disconnected.

[0042] If the photovoltaic charging module does not meet the charging conditions, and the vehicle is in the ON position, then the first photovoltaic contactor of the power battery system, the second photovoltaic contactor in the photovoltaic charging module, and the second main positive contactor are disconnected.

[0043] In some embodiments, including:

[0044] If the photovoltaic charging module does not meet the charging conditions, then disconnect the main negative contactor of the power battery system, the first photovoltaic contactor, and the second photovoltaic contactor in the photovoltaic charging module.

[0045] If the vehicle is in the ON position, the first photovoltaic contactor of the power battery system and the second photovoltaic contactor in the photovoltaic charging module are disconnected.

[0046] Thirdly, this disclosure provides a computer-readable storage medium storing a charging method program for a photovoltaic vehicle, which, when executed by a processor, implements the charging method for the photovoltaic vehicle described in the first aspect.

[0047] Fourthly, this disclosure provides a vehicle including the charging system for the photovoltaic vehicle described in the first aspect above.

[0048] A charging system for a photovoltaic vehicle according to an embodiment of this disclosure includes: a power battery system, configured to issue a charging command to the photovoltaic charging module when the photovoltaic charging module meets the charging conditions, and control the state of the photovoltaic contactor within the power battery system according to the charging command; a photovoltaic charging module, electrically connected to the power battery system, configured to receive the charging command issued by the power battery system when the photovoltaic charging module meets the charging conditions, and control the state of the photovoltaic contactor within the photovoltaic charging module according to the charging command, so as to regulate the photovoltaic charging module to charge the power battery of the power battery system; and an electrical load module, electrically connected to the power battery system, configured to receive the power supply from the power battery system; wherein the photovoltaic charging interface of the photovoltaic charging module is connected to the connection circuit between the power battery system and the electrical load module. This application involves connecting a photovoltaic charging module to a power battery system in a vehicle. When the photovoltaic charging module meets the charging conditions, a charging command is sent to it. The photovoltaic charging module receives the charging command from the power battery system when the charging conditions are met, and controls the state of the photovoltaic contactors in the power battery system and the photovoltaic contactors in the photovoltaic charging module according to the charging command. This regulates the photovoltaic charging module to charge the power battery of the power battery system, thereby enabling the vehicle to be directly charged by photovoltaics, which is beneficial to the utilization of green energy when charging electric vehicles.

[0049] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of a charging system structure for a photovoltaic vehicle according to an exemplary embodiment;

[0051] Figure 2 This is a charging system structure for a photovoltaic vehicle illustrated according to an exemplary embodiment. Figure 1 ;

[0052] Figure 3 This is a charging system structure for a photovoltaic vehicle illustrated according to an exemplary embodiment. Figure 2 ;

[0053] Figure 4 This is a flowchart illustrating a charging method for a photovoltaic vehicle according to an exemplary embodiment;

[0054] Figure 5 This is a charging process for a photovoltaic vehicle illustrated according to an exemplary embodiment. Figure 1 ;

[0055] Figure 6 This is a charging process for a photovoltaic vehicle illustrated according to an exemplary embodiment. Figure 2 ;

[0056] Figure 7 This is a charging process for a photovoltaic vehicle illustrated according to an exemplary embodiment. Figure 3 ;

[0057] Figure 8 This is a charging process for a photovoltaic vehicle illustrated according to an exemplary embodiment. Figure 4 . Detailed Implementation

[0058] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0059] Photovoltaic power generation is a technology that converts solar energy into electrical energy, and it is characterized by its green and environmentally friendly nature. In recent years, stationary photovoltaic power generation has been widely used globally. However, the application of photovoltaic power generation in automobiles is relatively limited. Currently, electric vehicles (including pure electric vehicles and hybrid electric vehicles, referred to as electric vehicles in this article) need to be connected to the power grid and parked at fixed points to charge their batteries. Adding photovoltaic modules and controllers to electric vehicles would enable photovoltaic charging.

[0060] In view of the above situation, this disclosure provides a charging system for a photovoltaic vehicle. Figure 1 This is a schematic diagram illustrating the structure of a charging system for a photovoltaic vehicle according to an exemplary embodiment. Figure 1 As shown, the charging system for this photovoltaic vehicle includes:

[0061] The power battery system 01 is used to receive a charging request when the photovoltaic charging module meets the charging conditions, and to issue a charging command to the photovoltaic charging module based on the charging request, and to control the state of the photovoltaic contactor in the power battery system according to the charging request.

[0062] The photovoltaic charging module 02 is electrically connected to the power battery system. When the photovoltaic charging module meets the charging conditions, it receives the charging command issued by the power battery system and controls the state of the photovoltaic contactor in the photovoltaic charging module according to the charging command, so as to regulate the photovoltaic charging module to charge the power battery of the power battery system.

[0063] The power load module 03 is electrically connected to the power battery system and is used to receive power from the power battery system; wherein, the photovoltaic charging interface of the photovoltaic charging module is connected to the connection circuit between the power battery system and the power load module.

[0064] In this exemplary embodiment, the charging conditions that the photovoltaic charging module needs to meet when charging include the charging preparation state of the photovoltaic charging module and the battery state of the vehicle's power battery. For example, the charging preparation state of the photovoltaic charging module may include the light intensity reaching a predetermined light intensity value, the power generation power of the photovoltaic panel reaching a predetermined power value, and so on.

[0065] In this exemplary embodiment, the photovoltaic charging module can send a charging request to the power battery system when the charging conditions are met. When the power battery system receives the charging request, it can issue a charging command to the photovoltaic charging module.

[0066] In this exemplary embodiment, before charging the power battery, if the vehicle is in the OFF position, the BMS (Battery Management System) of the power battery system is first woken up. After the BMS is woken up, if the BMS receives a charging request from the photovoltaic charging module, it controls the state of the photovoltaic contactor in the power battery system according to the charging request.

[0067] After receiving a charging command from the power battery system, the photovoltaic charging module can control the state of the photovoltaic contactor within the photovoltaic charging module according to the charging command, so as to regulate the photovoltaic charging module to charge the power battery of the power battery system.

[0068] In this exemplary embodiment, when the power battery is charged by the photovoltaic charging module, the states of the photovoltaic contactors in the power battery system and the photovoltaic contactors in the photovoltaic charging module need to be coordinated. With the coordination of the states of the photovoltaic contactors in the power battery system and the photovoltaic contactors in the photovoltaic charging module, the photovoltaic charging module can charge the power battery.

[0069] A charging system for a photovoltaic vehicle according to an embodiment of this disclosure includes: a power battery system, configured to issue a charging command to the photovoltaic charging module when the photovoltaic charging module meets the charging conditions, and control the state of the photovoltaic contactor within the power battery system according to the charging command; a photovoltaic charging module, electrically connected to the power battery system, configured to receive the charging command issued by the power battery system when the photovoltaic charging module meets the charging conditions, and control the state of the photovoltaic contactor within the photovoltaic charging module according to the charging command, so as to regulate the photovoltaic charging module to charge the power battery of the power battery system; and an electrical load module, electrically connected to the power battery system, configured to receive the power supply from the power battery system; wherein the photovoltaic charging interface of the photovoltaic charging module is connected to the connection circuit between the power battery system and the electrical load module. This application involves connecting a photovoltaic charging module to a power battery system in a vehicle. When the photovoltaic charging module meets the charging conditions, a charging command is sent to it. The photovoltaic charging module receives the charging command from the power battery system when the charging conditions are met, and controls the state of the photovoltaic contactors in the power battery system and the photovoltaic contactors in the photovoltaic charging module according to the charging command. This regulates the photovoltaic charging module to charge the power battery of the power battery system, thereby enabling the vehicle to be directly charged by photovoltaics, which is beneficial to the utilization of green energy when charging electric vehicles.

[0070] In some embodiments, Figure 2 This is a charging system structure for a photovoltaic vehicle illustrated according to an exemplary embodiment. Figure 1 .like Figure 2 As shown, a pre-charging circuit is connected in series in the connection circuit between the power battery system and the electrical load module; wherein, the pre-charging circuit includes a first main positive contactor; the first main positive contactor is connected in series in the connection circuit between the power battery system and the electrical load module;

[0071] The circuit between the first main positive contactor and the electrical load module is connected to a photovoltaic fuse circuit; the photovoltaic fuse circuit includes a first photovoltaic contactor and a fuse connected in series; the first photovoltaic contactor is connected to the positive terminal of the power battery of the power battery system.

[0072] A second main positive contactor is connected in series in the connection circuit between the access point of the first photovoltaic contactor and the electrical load module.

[0073] In this exemplary embodiment, there are two possible connection methods between the photovoltaic charging module and the power battery system and the electrical load module. The first method is... Figure 2The circuit shown connects the first photovoltaic contactor in the pre-charging circuit to the electrical load module, which is then connected to a photovoltaic fuse circuit. The photovoltaic charging module is connected between the photovoltaic fuse circuit and the negative terminal of the power battery. The first photovoltaic contactor is connected to the positive terminal of the power battery in the power battery system. Thus, the photovoltaic charging module can be connected between the positive and negative terminals of the power battery to charge the power battery of the power battery system. The photovoltaic charging module includes... Figure 2 The diagram shows a photovoltaic charging interface, a second photovoltaic contactor, a boost module, and a photovoltaic panel. In this application, the photovoltaic charging module, when connected to a photovoltaic charging system, utilizes a connection method between a photovoltaic fuse circuit and the photovoltaic charging interface. This improves both the ease of connection for the photovoltaic charging module and the charging safety of the module.

[0074] In some embodiments, Figure 3 This is a charging system structure for a photovoltaic vehicle illustrated according to an exemplary embodiment. Figure 2 .like Figure 3 As shown, a pre-charging circuit is connected in series in the connection circuit between the power battery system and the electrical load module; wherein, the pre-charging circuit includes a first main positive contactor; the first main positive contactor is connected in series in the connection circuit between the power battery system and the electrical load module;

[0075] The circuit between the positive terminal of the power battery in the power battery system and the first main positive contactor is connected to a photovoltaic fuse circuit; the photovoltaic fuse circuit includes a first photovoltaic contactor and a fuse connected in series; the first photovoltaic contactor is connected to the positive terminal of the power battery in the power battery system.

[0076] In this exemplary embodiment, there are two possible connection methods between the photovoltaic charging module and the power battery system and the electrical load module. The second method is as follows: Figure 3 The photovoltaic fuse circuit shown is connected between the positive terminal of the power battery in the power battery system and the first main positive contactor. The photovoltaic charging module is connected between the photovoltaic fuse circuit and the negative terminal of the power battery; wherein, the first photovoltaic contactor is connected to the positive terminal of the power battery in the power battery system. In this way, the photovoltaic charging module can be connected between the positive and negative terminals of the power battery to charge the power battery of the power battery system.

[0077] In some embodiments, the photovoltaic charging module includes a photovoltaic charging interface, a boost module, and a photovoltaic panel;

[0078] The photovoltaic charging interface is connected to the boost module, and the boost module is connected to the photovoltaic panel;

[0079] The photovoltaic charging interface has a first connection end and a second connection end; the first connection end of the photovoltaic charging interface is connected to the fuse of the photovoltaic fuse circuit; the second connection end of the photovoltaic charging interface is connected to the negative terminal of the power battery of the power battery system.

[0080] In this exemplary embodiment, a photovoltaic panel is used to generate and output electrical energy, and a boost module is used to boost the output voltage of the photovoltaic panel to match the charging voltage of the power battery. The fuse in the photovoltaic fuse circuit is used to protect the photovoltaic charging module connected to the photovoltaic fuse circuit. The photovoltaic fuse circuit is connected to the positive terminal of the power battery, and the first connection terminal of the photovoltaic charging interface is connected to the fuse in the photovoltaic fuse circuit. This ensures that the first connection terminal of the photovoltaic charging interface is connected to the positive terminal of the power battery, and the second connection terminal of the photovoltaic charging interface is connected to the negative terminal of the power battery system. This allows the two connection terminals of the photovoltaic charging interface to be connected to the positive and negative terminals of the power battery respectively, facilitating the connection of the photovoltaic charging module to the positive and negative terminals of the power battery, thereby establishing a charging circuit for the photovoltaic charging module to charge the power battery. In this application, the connection method of the photovoltaic charging module in conjunction with the photovoltaic fuse circuit and the photovoltaic charging interface when connected to the photovoltaic charging system improves both the convenience of connecting the photovoltaic charging module and the charging safety of the photovoltaic charging module.

[0081] In some embodiments, a second photovoltaic contactor is connected in series in the connection circuit between the photovoltaic charging interface and the boost module;

[0082] The pre-charge circuit includes a pre-charge resistor and a pre-charge contactor.

[0083] The pre-charge resistor and the pre-charge contactor are connected in series and then connected in parallel with the first main positive contactor;

[0084] A main negative contactor is connected in series between the second connection terminal of the photovoltaic charging interface and the negative terminal of the power battery.

[0085] In this exemplary embodiment, the electrical load module includes a bus capacitor C and a resistor R. 主 Resistance R 被 The power-on process is as follows: first, close the first main negative contactor, then close the pre-charge contactor, and then the power battery charges the bus capacitor C. After it is fully charged, close the main positive contactor, and then open the pre-charge contactor. All electrical components of the vehicle then operate normally.

[0086] The power-off process is as follows: first, disconnect the main positive contactor, then disconnect the main negative contactor, and finally close the discharge switch. The charge in the bus capacitor C flows through the resistor R. 主 Discharge (time can be 2s), power-off process completed (if R 主 If damaged, it needs to be repaired by R.被 Discharge, duration can be 5 minutes.

[0087] In this application, the photovoltaic charging module charges the power battery by regulating the state of the photovoltaic contactor in the power battery system and the state of the photovoltaic contactor in the photovoltaic charging module, and the power battery discharges to the electrical load by regulating the discharge switch in the electrical load module.

[0088] This disclosure provides a charging method for a photovoltaic vehicle, applied to a charging system for a photovoltaic vehicle. The charging system includes a power battery system, a photovoltaic charging module, and an electrical load module. The photovoltaic charging interface of the photovoltaic charging module is connected to the connection circuit between the power battery system and the electrical load module.

[0089] Figure 4 This is a flowchart illustrating a charging method for a photovoltaic vehicle according to an exemplary embodiment. Figure 4 As shown, the charging method includes:

[0090] Step 10: When the photovoltaic charging module meets the charging conditions, the power battery system receives the charging request from the photovoltaic charging module, issues a charging command to the photovoltaic charging module based on the charging request, and controls the state of the photovoltaic contactor in the power battery system according to the charging request.

[0091] Step 11: After receiving the charging command issued by the power battery system, control the state of the photovoltaic contactor in the photovoltaic charging module according to the charging command, so as to regulate the photovoltaic charging module to charge the power battery of the power battery system through the photovoltaic charging interface.

[0092] In this exemplary embodiment, the charging conditions that the photovoltaic charging module needs to meet when charging include the charging preparation state of the photovoltaic charging module and the battery state of the vehicle's power battery. For example, the charging preparation state of the photovoltaic charging module may include the light intensity reaching a predetermined light intensity value, the power generation power of the photovoltaic panel reaching a predetermined power value, and so on.

[0093] In this exemplary embodiment, the photovoltaic charging module can send a charging request to the power battery system when the charging conditions are met. When the power battery system receives the charging request, it can issue a charging command to the photovoltaic charging module.

[0094] In this exemplary embodiment, before charging the power battery, if the vehicle is in the OFF position, the BMS (Battery Management System) of the power battery system is first woken up. After the BMS is woken up, if the BMS receives a charging request from the photovoltaic charging module, it controls the state of the photovoltaic contactor in the power battery system according to the charging request.

[0095] After receiving a charging command from the power battery system, the photovoltaic charging module can control the state of the photovoltaic contactor within the photovoltaic charging module according to the charging command, so as to regulate the photovoltaic charging module to charge the power battery of the power battery system.

[0096] In this exemplary embodiment, when the power battery is charged by the photovoltaic charging module, the states of the photovoltaic contactors in the power battery system and the photovoltaic contactors in the photovoltaic charging module need to be coordinated. With the coordination of the states of the photovoltaic contactors in the power battery system and the photovoltaic contactors in the photovoltaic charging module, the photovoltaic charging module can charge the power battery.

[0097] A charging method for a photovoltaic vehicle according to an embodiment of this disclosure includes: when the photovoltaic charging module meets the charging conditions, receiving a charging request from the photovoltaic charging module through the power battery system, issuing a charging command to the photovoltaic charging module based on the charging request, and controlling the state of the photovoltaic contactor in the power battery system according to the charging request; after receiving the charging command issued by the power battery system, controlling the state of the photovoltaic contactor in the photovoltaic charging module according to the charging command, so as to regulate the photovoltaic charging module to charge the power battery of the power battery system through the photovoltaic charging interface, thereby enabling the vehicle to be directly charged by photovoltaics, which is conducive to the utilization of green energy when charging electric vehicles.

[0098] In some embodiments, a pre-charging circuit is connected in series in the connection circuit between the power battery system and the electrical load module; wherein the pre-charging circuit includes a first main positive contactor; the first main positive contactor is connected in series in the connection circuit between the power battery system and the electrical load module; wherein the circuit between the first main positive contactor and the electrical load module is connected to a photovoltaic fuse circuit; wherein the photovoltaic fuse circuit includes a first photovoltaic contactor and a fuse connected in series; the first photovoltaic contactor is connected to the positive terminal of the power battery of the power battery system; a second main positive contactor is connected in series in the connection circuit between the connection point of the first photovoltaic contactor and the electrical load module; the photovoltaic charging module includes a photovoltaic charging interface. The system includes a boost module and a photovoltaic panel; the photovoltaic charging interface is connected to the boost module, and the boost module is connected to the photovoltaic panel; the photovoltaic charging interface has a first connection end and a second connection end; the first connection end of the photovoltaic charging interface is connected to the fuse of the photovoltaic fuse circuit; the second connection end of the photovoltaic charging interface is connected to the negative terminal of the power battery system; a second photovoltaic contactor is connected in series in the connection circuit between the photovoltaic charging interface and the boost module; the pre-charging circuit includes a pre-charging resistor and a pre-charging contactor; the pre-charging resistor and the pre-charging contactor are connected in series and then in parallel with the first main positive contactor; a main negative contactor is connected in series in the circuit between the second connection end of the photovoltaic charging interface and the negative terminal of the power battery.

[0099] The step of controlling the state of the photovoltaic contactor in the power battery system according to the charging command includes:

[0100] If the vehicle is in the OFF position, then the first main positive contactor, the main negative contactor, and the first photovoltaic contactor of the power battery system are closed; or,

[0101] If the vehicle is in the ON position, the first photovoltaic contactor of the power battery system and the second photovoltaic contactor in the photovoltaic charging module will be closed.

[0102] The step of controlling the state of the photovoltaic contactor in the photovoltaic charging module according to the charging command includes:

[0103] If the vehicle is in the OFF position, then the second photovoltaic contactor within the photovoltaic charging module will close; or,

[0104] If the vehicle is in the ON position, the second main positive contactor will be closed.

[0105] In this exemplary embodiment, the photovoltaic charging module may include an SCU (Service Control Unit). When adjusting the state of the photovoltaic contactors within the photovoltaic charging module, this can be performed through the SCU. For example, if the photovoltaic charging module does not meet the charging conditions, and if the vehicle is in the OFF position, the first main positive contactor, the main negative contactor, the first photovoltaic contactor of the power battery system, and the second photovoltaic contactor within the photovoltaic charging module are disconnected.

[0106] If the photovoltaic charging module does not meet the charging conditions, and the vehicle is in the ON position, then the first photovoltaic contactor of the power battery system, the second photovoltaic contactor in the photovoltaic charging module, and the second main positive contactor are disconnected.

[0107] In this exemplary embodiment, when the photovoltaic charging module meets the charging conditions, if the vehicle is in the OFF position and the vehicle key is off, the first main positive contactor, the main negative contactor of the power battery system, and the second contactor of the vehicle's high-voltage PDU are not closed.

[0108] The SCU sends a wake-up signal to the BMS, waking the BMS. Then, the SCU sends a charging request signal to the BMS. Upon receiving the request, the BMS closes the first main positive contactor and the main negative contactor of the power battery system, closes the first photovoltaic contactor, and sends a charging permission command to the SCU. The SCU then closes the second photovoltaic contactor, connecting the entire photovoltaic charging circuit, and the photovoltaic system charges the power battery (since the second main positive contactor inside the PDU is open, the photovoltaic system only charges the power battery at this time).

[0109] Conversely, when the photovoltaic charging conditions are not met, the SCU requests the BMS to stop charging, and the second photovoltaic contactor, the first photovoltaic contactor, the first main positive contactor of the power battery system, and the main negative contactor are disconnected in sequence, thus ending the photovoltaic charging process.

[0110] When the vehicle is in the OFF position and the photovoltaic system is charging, the second main positive contactor in the high-voltage PDU of the vehicle is disconnected, and electrical appliances such as the MCU are not energized with high voltage. This ensures the safety of all electrical components when the vehicle is in the OFF position and the photovoltaic system is charging.

[0111] When the vehicle is in the ON position (the vehicle key is turned on, at which point the first main positive contactor and main negative contactor of the power battery system, and the second main positive contactor of the vehicle's high-voltage PDU are already closed), when the photovoltaic charging conditions are met, the SCU sends a charging request signal to the BMS. After receiving the charging request, the BMS sends a charging permission response command to the SCU, then the first photovoltaic contactor closes, and finally the second photovoltaic contactor in the SCU closes; the entire photovoltaic high-voltage circuit is connected, and the photovoltaic system can then be charged.

[0112] Conversely, when the photovoltaic charging conditions are not met, the SCU sends a stop charging request signal to the BMS and disconnects the second photovoltaic contactor; after receiving the stop charging request signal from the SCU, the BMS disconnects the first photovoltaic contactor, and the photovoltaic charging ends.

[0113] Figure 5 This is a charging process for a photovoltaic vehicle illustrated according to an exemplary embodiment. Figure 1 ;like Figure 5 As shown, when the vehicle is in the OFF position, the charging process for a photovoltaic vehicle includes:

[0114] Step 50: Determine whether the charging conditions of the photovoltaic system are met;

[0115] Step 51: If the charging conditions of the photovoltaic system are met, send a charging request signal to the BMS;

[0116] Step 52: BMS is woken up;

[0117] Step 53: The SCU sends a charging request signal to the BMS;

[0118] Step 54: Determine if the BMS has received a charging request;

[0119] Step 55: If the BMS receives a charging request, it closes the main negative contactor, the first main positive contactor, and the first photovoltaic contactor of the power battery system.

[0120] Step 56: Send a charging permission command to the SCU;

[0121] Step 57: Determine whether the SCU has received a charging command from the BMS;

[0122] Step 58: If a charging command is received from the BMS, close the second photovoltaic contactor of the photovoltaic charging module.

[0123] Step 59: Charging the photovoltaic system;

[0124] Step 60: The charging conditions for the photovoltaic system are not met;

[0125] Step 61: If the charging conditions of the photovoltaic system are not met, the SCU sends a stop charging request signal to the BMS.

[0126] Step 62: Disconnect the second photovoltaic contactor in the photovoltaic charging module;

[0127] Step 63: Determine whether the BMS has received a stop charging request from the SCU;

[0128] Step 64: When the BMS receives the SCU's request to stop charging, it disconnects the main negative contactor, the first main positive contactor, and the first photovoltaic contactor of the power battery system.

[0129] Figure 6 This is a charging process for a photovoltaic vehicle illustrated according to an exemplary embodiment. Figure 2 .like Figure 6 As shown, when the vehicle is in the ON position, the charging process for a photovoltaic vehicle includes:

[0130] Step 65: Determine whether the charging conditions of the photovoltaic system are met;

[0131] Step 66: If the charging conditions of the photovoltaic system are met, send a charging request signal to the BMS;

[0132] Step 67: Determine if the BMS has received a charging request;

[0133] Step 68: If the BMS receives a charging request, it closes the first photovoltaic contactor of the power battery system.

[0134] Step 69: Send a charging permission command to the SCU;

[0135] Step 70: Determine whether the SCU has received a charging command from the BMS;

[0136] Step 71: If a charging command is received from the BMS, close the second photovoltaic contactor of the photovoltaic charging module.

[0137] Step 72: Charging the photovoltaic system;

[0138] Step 73: The charging conditions for the photovoltaic system are not met;

[0139] Step 74: If the charging conditions of the photovoltaic system are not met, the SCU sends a stop charging request signal to the BMS.

[0140] Step 75: Disconnect the second photovoltaic contactor in the photovoltaic charging module;

[0141] Step 76: Determine whether the BMS has received a stop charging request from the SCU;

[0142] Step 77: When the BMS receives the SCU's request to stop charging, it disconnects the first photovoltaic contactor of the power battery system.

[0143] In some embodiments, a pre-charging circuit is connected in series in the connection circuit between the power battery system and the electrical load module; wherein, the pre-charging circuit includes a first main positive contactor; the first main positive contactor is connected in series in the connection circuit between the power battery system and the electrical load module; wherein, the circuit between the positive terminal of the power battery of the power battery system and the first main positive contactor is connected to a photovoltaic fuse circuit; wherein, the photovoltaic fuse circuit includes a first photovoltaic contactor and a fuse connected in series; the first photovoltaic contactor is connected to the positive terminal of the power battery of the power battery system, and the photovoltaic charging module includes a photovoltaic charging interface, a boost module, and a photovoltaic panel; the photovoltaic charging interface... The photovoltaic charging interface is connected to the boost module, which in turn is connected to the photovoltaic panel. The photovoltaic charging interface has a first connection terminal and a second connection terminal. The first connection terminal of the photovoltaic charging interface is connected to the fuse in the photovoltaic fuse circuit. The second connection terminal of the photovoltaic charging interface is connected to the negative terminal of the power battery in the power battery system. A second photovoltaic contactor is connected in series in the connection circuit between the photovoltaic charging interface and the boost module. The pre-charging circuit includes a pre-charging resistor and a pre-charging contactor. The pre-charging resistor and the pre-charging contactor are connected in series and then in parallel with the first main positive contactor. A main negative contactor is connected in series in the circuit between the second connection terminal of the photovoltaic charging interface and the negative terminal of the power battery.

[0144] The step of controlling the state of the photovoltaic contactor in the power battery system according to the charging command includes:

[0145] If the vehicle is in the OFF position, then the main negative contactor and the first photovoltaic contactor of the power battery system are closed; or,

[0146] If the vehicle is in the ON position, the first photovoltaic contactor of the power battery system is closed;

[0147] The step of controlling the state of the photovoltaic contactor in the photovoltaic charging module according to the charging command includes:

[0148] If the vehicle is in the OFF position, then the second photovoltaic contactor within the photovoltaic charging module will close; or,

[0149] If the vehicle is in the ON position, the second photovoltaic contactor in the photovoltaic charging module will be closed.

[0150] In this exemplary embodiment, it includes:

[0151] If the photovoltaic charging module does not meet the charging conditions, then disconnect the main negative contactor of the power battery system, the first photovoltaic contactor, and the second photovoltaic contactor in the photovoltaic charging module.

[0152] If the vehicle is in the ON position, the first photovoltaic contactor of the power battery system and the second photovoltaic contactor in the photovoltaic charging module are disconnected.

[0153] In this exemplary embodiment, when the vehicle is in the ON position, photovoltaic charging can be achieved simply by closing the first photovoltaic contactor and the second photovoltaic contactor (at this time, the first main positive contactor and the main negative contactor of the power battery system are already closed because the electrical components need power).

[0154] When the vehicle is in the OFF position, the power battery can be charged simply by closing the first photovoltaic contactor, the second photovoltaic contactor, and the main negative contactor of the power battery system (at this time, the MCU and other components do not need power, and the first main positive contactor of the power battery system does not need to be closed).

[0155] After the BMS receives the SCU's request to stop charging:

[0156] When the vehicle is in the ON position, simply disconnecting the first and second photovoltaic contactors will stop the photovoltaic charging process (at this time, the MCU and other components require power, so the first main positive contactor and the main negative contactor of the power battery system do not need to be disconnected).

[0157] When the vehicle is in the OFF position, charging can be stopped simply by disconnecting the second photovoltaic contactor, the first photovoltaic contactor, and the main negative contactor of the power battery system (at this time, the MCU and other components do not require power, and the first main positive contactor of the power battery system is also not closed).

[0158] This application charges the entire vehicle through the on-board charging port, while photovoltaic charging can play an auxiliary charging role. Based on the high-voltage architecture of electric vehicles, the modification of vehicle parts is minimal, the layout is convenient, and the cost is low. Furthermore, when the vehicle is in the OFF position (especially when parked for a long time and unattended), the electrical appliances of the entire vehicle are not in a high-voltage state, which helps to ensure the high-voltage safety of the vehicle.

[0159] Figure 7 This is a charging process for a photovoltaic vehicle illustrated according to an exemplary embodiment. Figure 3 ;like Figure 7 As shown, when the vehicle is in the OFF position, the charging process for a photovoltaic vehicle includes:

[0160] Step 30: Determine whether the charging conditions of the photovoltaic system are met;

[0161] Step 31: If the charging conditions of the photovoltaic system are met, send a charging request signal to the BMS;

[0162] Step 32: BMS is woken up;

[0163] Step 33: The SCU sends a charging request signal to the BMS;

[0164] Step 34: Determine if the BMS has received a charging request;

[0165] Step 35: If the BMS receives a charging request, it closes the main negative contactor and the first photovoltaic contactor of the power battery system.

[0166] Step 36: Send a charging permission command to the SCU;

[0167] Step 37: Determine whether the SCU has received a charging command from the BMS;

[0168] Step 38: If a charging command is received from the BMS, close the second photovoltaic contactor of the photovoltaic charging module.

[0169] Step 39: Charging the photovoltaic system;

[0170] Step 40: The charging conditions for the photovoltaic system are not met;

[0171] Step 41: If the charging conditions of the photovoltaic system are not met, the SCU sends a stop charging request signal to the BMS.

[0172] Step 42: Disconnect the second photovoltaic contactor in the photovoltaic charging module;

[0173] Step 43: Determine whether the BMS has received a stop charging request from the SCU;

[0174] Step 44: When the BMS receives the SCU's request to stop charging, it disconnects the main negative contactor and the first photovoltaic contactor of the power battery system.

[0175] Figure 8 This is a charging process for a photovoltaic vehicle illustrated according to an exemplary embodiment. Figure 4 .like Figure 8 As shown, when the vehicle is in the ON position, the charging process for a photovoltaic vehicle includes:

[0176] Step 80: Determine whether the charging conditions of the photovoltaic system are met;

[0177] Step 81: If the charging conditions of the photovoltaic system are met, send a charging request signal to the BMS;

[0178] Step 82: Determine if the BMS has received a charging request;

[0179] Step 83: If the BMS receives a charging request, it closes the first photovoltaic contactor of the power battery system.

[0180] Step 84: Send a charging permission command to the SCU;

[0181] Step 85: Determine whether the SCU has received a charging command from the BMS;

[0182] Step 86: If a charging command is received from the BMS, close the second photovoltaic contactor of the photovoltaic charging module.

[0183] Step 87: Charging the photovoltaic system;

[0184] Step 88: The charging conditions for the photovoltaic system are not met;

[0185] Step 89: If the charging conditions of the photovoltaic system are not met, the SCU sends a stop charging request signal to the BMS.

[0186] Step 90: Disconnect the second photovoltaic contactor in the photovoltaic charging module;

[0187] Step 91: Determine whether the BMS has received a stop charging request from the SCU;

[0188] Step 92: When the BMS receives the SCU's request to stop charging, it disconnects the first photovoltaic contactor of the power battery system.

[0189] This disclosure provides a computer-readable storage medium storing a charging method program for a photovoltaic vehicle. When the charging method program for a photovoltaic vehicle is executed by a processor, it implements the charging method for a photovoltaic vehicle described in the above embodiments.

[0190] This disclosure provides a vehicle including the charging system for the photovoltaic vehicle described in the above embodiments.

[0191] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Furthermore, computer-readable media can even be paper or other suitable media on which programs can be printed, because programs can be obtained electronically, for example, by optically scanning the paper or other media, followed by editing, interpreting, or otherwise processing as necessary, and then stored in computer memory.

[0192] It should be understood that various parts of this disclosure can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0193] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0194] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0195] Furthermore, the terms "first," "second," etc., used in the embodiments of this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance, or implicitly specifying the number of technical features indicated in this embodiment. Therefore, features defined with terms such as "first" and "second" in the embodiments of this disclosure can explicitly or implicitly indicate that the embodiment includes at least one of those features. In the description of this disclosure, the word "multiple" means at least two or more, such as two, three, four, etc., unless otherwise explicitly specified in the embodiments.

[0196] In this disclosure, unless otherwise explicitly specified or limited in the embodiments, the terms "installation," "connection," "joining," and "fixing," etc., appearing in the embodiments should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral part; it can also be a mechanical connection, an electrical connection, etc. Of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication between two components, or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific implementation.

[0197] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0198] Although embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A charging system for a photovoltaic vehicle, characterized in that, The application relates to a charging system applied to a photovoltaic automobile. The charging system comprises a power battery system, a photovoltaic charging module and a power consumption load module. The photovoltaic charging module is electrically connected with the power battery system and is used for receiving a charging instruction issued by the power battery system when the photovoltaic charging module meets a charging condition and controlling a photovoltaic contactor state in the photovoltaic charging module according to the charging instruction so as to regulate and control the photovoltaic charging module to charge the power battery of the power battery system. The power consumption load module is electrically connected with the power battery system and is used for receiving power supply of the power battery system. The photovoltaic charging interface of the photovoltaic charging module is connected to a connecting circuit between the power battery system and the power consumption load module. A pre-charging circuit is connected in series in the connecting circuit between the power battery system and the power consumption load module. The first main positive contactor is connected in series in the connecting circuit between the power battery system and the power consumption load module. A photovoltaic fuse circuit is connected between the first main positive contactor and the power consumption load module.

2. The photovoltaic charging system for an automobile according to claim 1, wherein The photovoltaic fuse circuit comprises a first photovoltaic contactor and a fuse connected in series.

3. The charging system of a photovoltaic car according to claim 1 or 2, characterized in that, The first photovoltaic contactor is connected with the positive electrode of the power battery of the power battery system. The first photovoltaic contactor is connected with the positive electrode of the power battery of the power battery system. The photovoltaic charging module comprises a photovoltaic charging interface, a boost module and a photovoltaic panel.

4. The photovoltaic charging system for an automobile according to claim 3, wherein The photovoltaic charging interface is connected with the boost module, and the boost module is connected with the photovoltaic panel. The photovoltaic charging interface has a first connecting end and a second connecting end. The first connecting end of the photovoltaic charging interface is connected with the fuse of the photovoltaic fuse circuit. The second connecting end of the photovoltaic charging interface is connected with the negative electrode of the power battery of the power battery system.

5. A method of charging a photovoltaic vehicle, characterized by, A second photovoltaic contactor is connected in series in the connecting circuit between the photovoltaic charging interface and the boost module. The pre-charging circuit comprises a pre-charging resistor and a pre-charging contactor. The pre-charging resistor and the pre-charging contactor are connected in parallel with the first main positive contactor. A main negative contactor is connected in series in the circuit between the second connecting end of the photovoltaic charging interface and the negative electrode of the power battery. The charging system applied to the photovoltaic automobile comprises a power battery system, a photovoltaic charging module and a power consumption load module. The photovoltaic charging interface of the photovoltaic charging module is connected to a connecting circuit between the power battery system and the power consumption load module. The charging method comprises the following steps. When the photovoltaic charging module meets the charging condition, the power battery system receives a charging request of the photovoltaic charging module, and issues a charging instruction to the photovoltaic charging module based on the charging request, and controls the state of the photovoltaic contactor in the power battery system according to the charging request; After receiving the charging instruction issued by the power battery system, the state of the photovoltaic contactor in the photovoltaic charging module is controlled according to the charging instruction, so as to control the photovoltaic charging module to charge the power battery of the power battery system through the photovoltaic charging interface; The connection circuit between the power battery system and the power load module is connected in series with a pre-charging circuit; wherein the first main positive contactor is contained in the pre-charging circuit; the first main positive contactor is connected in series in the connection circuit between the power battery system and the power load module; The circuit between the first main positive contactor and the power load module is connected with a photovoltaic fuse circuit; wherein the photovoltaic fuse circuit comprises a first photovoltaic contactor and a fuse connected in series; the first photovoltaic contactor is connected with the positive electrode of the power battery of the power battery system; The connection circuit between the access point of the first photovoltaic contactor and the power load module is connected in series with a second main positive contactor.

6. The method of charging a photovoltaic vehicle of claim 5, wherein, The photovoltaic charging module comprises a photovoltaic charging interface, a boost module and a photovoltaic panel; the photovoltaic charging interface is connected with the boost module, and the boost module is connected with the photovoltaic panel; the photovoltaic charging interface has a first connection end and a second connection end; the first connection end of the photovoltaic charging interface is connected with the fuse of the photovoltaic fuse circuit; the second connection end of the photovoltaic charging interface is connected with the negative electrode of the power battery of the power battery system; the connection circuit between the photovoltaic charging interface and the boost module is connected in series with a second photovoltaic contactor; wherein the pre-charging circuit contains a pre-charging resistor and a pre-charging contactor; the pre-charging resistor and the pre-charging contactor are connected in parallel with the first main positive contactor; the circuit between the second connection end of the photovoltaic charging interface and the negative electrode of the power battery is connected in series with a main negative contactor; The control of the state of the photovoltaic contactor in the power battery system according to the charging instruction comprises: If the vehicle is in OFF gear, the first main positive contactor, the main negative contactor and the first photovoltaic contactor of the power battery system are closed; or, If the vehicle is in ON gear, the first photovoltaic contactor of the power battery system and the second photovoltaic contactor in the photovoltaic charging module are closed; The control of the state of the photovoltaic contactor in the photovoltaic charging module according to the charging instruction comprises: If the vehicle is in OFF gear, the second photovoltaic contactor in the photovoltaic charging module is closed; or, If the vehicle is in ON gear, the second main positive contactor is closed.

7. The method of charging a photovoltaic vehicle of claim 5, wherein, Or, the power battery system of the power battery positive and the first main positive contactor between the circuit access photovoltaic fuse circuit; wherein, the photovoltaic fuse circuit includes the first photovoltaic contactor and fuse in series; The first photovoltaic contactor is connected with the positive electrode of the power battery system, and the photovoltaic charging module includes photovoltaic charging interface, boost module and photovoltaic panel; The photovoltaic charging interface is connected with the boost module, and the boost module is connected with the photovoltaic panel; The photovoltaic charging interface has a first connection end and a second connection end; The first connection end of the photovoltaic charging interface is connected with the fuse of the photovoltaic fuse circuit; The second connection end of the photovoltaic charging interface is connected with the negative electrode of the power battery system, and the connection circuit between the photovoltaic charging interface and the boost module is connected with the second photovoltaic contactor in series; Wherein, the pre-charging circuit contains pre-charging resistance and pre-charging contactor; The pre-charging resistance and the pre-charging contactor are connected in parallel with the first main positive contactor; The circuit between the second connection end of the photovoltaic charging interface and the negative electrode of the power battery is connected with the main negative contactor in series; The control of the photovoltaic contactor state in the power battery system according to the charging instruction comprises: If the vehicle is in OFF gear, the main negative contactor of the power battery system, the first photovoltaic contactor is closed; or, If the vehicle is in ON gear, the first photovoltaic contactor of the power battery system is closed; The control of the photovoltaic contactor state in the photovoltaic charging module according to the charging instruction comprises: If the vehicle is in OFF gear, the second photovoltaic contactor in the photovoltaic charging module is closed; or, If the vehicle is in ON gear, the second photovoltaic contactor in the photovoltaic charging module is closed.

8. The method of charging a photovoltaic vehicle of claim 6, wherein, Including: If the photovoltaic charging module does not meet the charging condition, if the vehicle is in OFF gear, the first main positive contactor, the main negative contactor, the first photovoltaic contactor of the power battery system and the second photovoltaic contactor in the photovoltaic charging module are disconnected; If the photovoltaic charging module does not meet the charging condition, if the vehicle is in ON gear, the first photovoltaic contactor of the power battery system, the second photovoltaic contactor in the photovoltaic charging module and the second main positive contactor are disconnected.

9. The method of charging a photovoltaic vehicle of claim 7, wherein, Including: If the photovoltaic charging module does not meet the charging condition, the main negative contactor, the first photovoltaic contactor of the power battery system and the second photovoltaic contactor in the photovoltaic charging module are disconnected; If the vehicle is in ON gear, the first photovoltaic contactor of the power battery system and the second photovoltaic contactor in the photovoltaic charging module are disconnected.

10. A computer-readable storage medium, characterized in that, The photovoltaic automobile charging method program is stored on the photovoltaic automobile charging method program, which is executed by the processor, and the photovoltaic automobile charging method of any one of claims 5-9 is realized.

11. A vehicle characterized by comprising: The photovoltaic automobile charging system of any one of claims 1-4 is included.

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