Photovoltaic charging start control method and device, vehicle and storage medium

Abstract

The invention relates to the technical field of vehicle control, in particular to a photovoltaic charging starting control method and device, a vehicle and a storage medium. The method comprises the steps of obtaining a current operation condition of a vehicle, the current operation working conditions comprise that the vehicle is in a preset parking state and has no remote photovoltaic charging starting request, the vehicle is in the preset parking state and has a remote photovoltaic charging starting request, the vehicle is in a driving state and has a photovoltaic charging request, and the vehicle is in a high-voltage power-on state and has a photovoltaic charging request; based on the current operation condition, a photovoltaic charging start control strategy of the vehicle is determined; and controlling a photovoltaic system to perform photovoltaic charging on a high-voltage battery of the vehicle according to the photovoltaic charging start control strategy. Therefore, the problems that an existing photovoltaic charging technology is not mature in the aspect of high-voltage charging of a vehicle power battery, and all working condition states of the vehicle cannot be considered are solved, and therefore the user experience feeling is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to a photovoltaic charging startup control method, device, vehicle and storage medium. Background Art

[0002] With the increasingly severe global energy crisis and the improvement of environmental protection awareness, it is becoming increasingly important to seek sustainable energy solutions. Against this background, automotive photovoltaic charging technology has emerged. It uses solar energy to provide clean and renewable energy for electric vehicles, providing an effective way to reduce dependence on fossil fuels and reduce greenhouse gas emissions. Automotive photovoltaic charging technology mainly involves installing photovoltaic panels on the surface of the vehicle (such as the roof, hood, trunk lid, etc.). These panels can convert sunlight into electrical energy to directly charge the vehicle's battery or power the vehicle's auxiliary systems. The advantage of this technology is that it can provide additional power when the vehicle is parked or driving, thereby reducing dependence on traditional charging stations and improving the energy efficiency of electric vehicles.

[0003] In the related art, the vehicle power battery can be charged through photovoltaic components.

[0004] However, the existing photovoltaic charging technology is still immature in high-voltage charging of vehicle power batteries and cannot take into account all operating conditions of the vehicle, and urgently needs to be improved. Summary of the invention

[0005] The present application provides a photovoltaic charging start-up control method, device, vehicle and storage medium to solve the problem that the existing photovoltaic charging technology for electric vehicles is not yet mature in high-voltage charging of vehicle power batteries and cannot take into account all operating conditions of the vehicle, thereby improving the user experience.

[0006] To achieve the above-mentioned purpose, the first embodiment of the present application proposes a photovoltaic charging startup control method, comprising the following steps:

[0007] Acquire the current operating condition of the vehicle, the current operating condition including the vehicle being in a preset parking state and having no remote photovoltaic charging start request, the vehicle being in the preset parking state and having a remote photovoltaic charging start request, the vehicle being in a driving state and having a photovoltaic charging request, and the vehicle being in a high voltage power-on state and having a photovoltaic charging request;

[0008] Based on the current operating condition, determining a photovoltaic charging start control strategy for the vehicle;

[0009] According to the photovoltaic charging start-up control strategy, the photovoltaic system is controlled to perform photovoltaic charging on the vehicle high-voltage battery.

[0010] According to an embodiment of the present application, the current operating condition is that the vehicle is in a preset parking state and there is no remote photovoltaic charging start request, and the photovoltaic system is controlled to perform photovoltaic charging on the vehicle at high voltage according to the photovoltaic charging start control strategy, including:

[0011] Obtaining a first CAN (Controller Area Network) message of a static photovoltaic charging request;

[0012] Based on the first CAN message, a first power state of the photovoltaic energy storage battery, a first state of the vehicle door lock, and a first power state of the vehicle high-voltage battery are obtained, and it is determined whether the first power state of the photovoltaic energy storage battery is greater than a first preset value, whether the first state of the vehicle door lock is in a preset closed state, and whether the first power state of the vehicle high-voltage battery is less than a second preset value;

[0013] When the first state of charge of the photovoltaic energy storage battery is greater than the first preset value, the first state of the vehicle door lock is in the preset closed state, and the first state of charge of the vehicle high-voltage battery is less than the second preset value, the high-voltage system is controlled to start and power on the high voltage, and the photovoltaic system is controlled to perform photovoltaic charging on the vehicle high-voltage battery.

[0014] According to one embodiment of the present application, after controlling the photovoltaic system to charge the vehicle high-voltage battery, the method further includes:

[0015] Obtain the key power-on status, gun insertion signal, continuous photovoltaic charging time, the second power state of the photovoltaic energy storage battery and the second state of the vehicle door lock;

[0016] Determine whether the key power-on state is in a preset open state, or whether the gun insertion signal satisfies a preset connection signal, or whether the continuous photovoltaic charging time is greater than a third preset value, or whether the second power state of the photovoltaic energy storage battery is less than a fourth preset value, or whether the second state of the vehicle door lock is in a preset unlocked state;

[0017] When the key power-on state is in the preset on state, or the gun plug signal satisfies the preset connection signal, or the continuous photovoltaic charging time is greater than the third preset value, or the second power state of the photovoltaic energy storage battery is less than the fourth preset value, or the second state of the vehicle door lock is in the preset unlocked state, the vehicle is controlled to exit the photovoltaic charging mode, and the high-voltage system is controlled to power off the high voltage.

[0018] According to one embodiment of the present application, the current operating condition is that the vehicle is in the preset parking state and there is a remote photovoltaic charging start request, and the photovoltaic system is controlled to perform photovoltaic charging on the vehicle high-voltage battery according to the photovoltaic charging start control strategy, including:

[0019] Get the second CAN message of the remote photovoltaic charging request;

[0020] Based on the second CAN message, obtaining a third power state of the photovoltaic energy storage battery and a second power state of the vehicle high-voltage battery, and determining whether the third power state of the photovoltaic energy storage battery is greater than a fifth preset value, and whether the second power state of the vehicle high-voltage battery is less than a sixth preset value;

[0021] When the third state of charge of the photovoltaic energy storage battery is greater than the fifth preset value and the second state of charge of the vehicle's high-voltage battery is less than the sixth preset value, the high-voltage system is controlled to start and power on the high voltage, and the photovoltaic system is controlled to perform photovoltaic charging on the vehicle's high-voltage battery.

[0022] According to one embodiment of the present application, after controlling the photovoltaic system to charge the vehicle high-voltage battery, the method further includes:

[0023] Obtaining remote request and third power status of photovoltaic energy storage battery;

[0024] Determining whether the remote request is a remote photovoltaic charging shutdown request, or whether the third power state of the photovoltaic energy storage battery is less than a seventh preset value;

[0025] When the remote request is the remote photovoltaic charging shutdown request, or the third power state of the photovoltaic energy storage battery is less than the seventh preset value, the vehicle is controlled to exit the photovoltaic charging mode, and the high-voltage system is controlled to shut down the high voltage.

[0026] According to one embodiment of the present application, the current operating condition is that the vehicle is in a driving state and has a photovoltaic charging request or the vehicle is in a high-voltage power-on state and has a photovoltaic charging request, and the photovoltaic system is controlled to perform photovoltaic charging on the high-voltage battery of the vehicle according to the photovoltaic charging start control strategy, including:

[0027] Obtaining a fourth power state of the photovoltaic energy storage battery and a third power state of the vehicle high-voltage battery;

[0028] Determining whether the fourth state of charge of the photovoltaic energy storage battery is greater than an eighth preset value, and whether the third state of charge of the vehicle high-voltage battery is less than a ninth preset value;

[0029] When the fourth state of charge of the photovoltaic energy storage battery is greater than the eighth preset value and the third state of charge of the vehicle high-voltage battery is less than the ninth preset value, the photovoltaic system is controlled to perform photovoltaic charging on the vehicle high-voltage battery.

[0030] According to one embodiment of the present application, after controlling the photovoltaic system to charge the vehicle high-voltage battery, the method further includes:

[0031] Obtain the fifth power state of the photovoltaic energy storage battery;

[0032] Determining whether a fifth power state of the photovoltaic energy storage battery is less than a tenth preset value;

[0033] When the fifth power state of the photovoltaic energy storage battery is less than the tenth preset value, the vehicle is controlled to exit the photovoltaic charging mode.

[0034] According to the photovoltaic charging start control method proposed in the embodiment of the present application, the current operating condition of the vehicle is obtained, and based on the current operating condition, the photovoltaic charging start control strategy of the vehicle is determined, so as to control the photovoltaic system to perform photovoltaic charging on the vehicle's high-voltage battery according to the photovoltaic charging start control strategy. Thus, the problem that the existing photovoltaic charging technology is not mature enough in charging the high-voltage power battery of the vehicle and cannot take into account all the operating conditions of the vehicle is solved, thereby improving the user experience.

[0035] To achieve the above-mentioned purpose, the second embodiment of the present application proposes a photovoltaic charging start control device, comprising:

[0036] an acquisition module, configured to acquire a current operating condition of the vehicle, wherein the current operating condition includes the vehicle being in a preset parking state and having no remote photovoltaic charging start request, the vehicle being in the preset parking state and having a remote photovoltaic charging start request, the vehicle being in a driving state and having a photovoltaic charging request, and the vehicle being in a high voltage power-on state and having a photovoltaic charging request;

[0037] A determination module, configured to determine a photovoltaic charging start control strategy for the vehicle based on the current operating condition;

[0038] The control module is used to control the photovoltaic system to perform photovoltaic charging on the vehicle high-voltage battery according to the photovoltaic charging start control strategy.

[0039] According to one embodiment of the present application, the current operating condition is that the vehicle is in a preset parking state and there is no remote photovoltaic charging start request, and the control module includes:

[0040] A first acquisition unit, used to acquire a first CAN message of a static photovoltaic charging request;

[0041] a first judgment unit, configured to obtain, based on the first CAN message, a first power state of a photovoltaic energy storage battery, a first state of a vehicle door lock, and a first power state of a vehicle high-voltage battery, and to judge whether the first power state of the photovoltaic energy storage battery is greater than a first preset value, whether the first state of the vehicle door lock is in a preset closed state, and whether the first power state of the vehicle high-voltage battery is less than a second preset value;

[0042] A first control unit is used to control the high-voltage system to start and power on the high voltage, and control the photovoltaic system to perform photovoltaic charging on the vehicle high-voltage battery when the first power state of the photovoltaic energy storage battery is greater than the first preset value, the first state of the vehicle door lock is in the preset closed state, and the first power state of the vehicle high-voltage battery is less than the second preset value.

[0043] According to one embodiment of the present application, after controlling the photovoltaic system to charge the vehicle high-voltage battery, the first control unit is further used to:

[0044] Obtain the key power-on status, gun insertion signal, continuous photovoltaic charging time, the second power state of the photovoltaic energy storage battery and the second state of the vehicle door lock;

[0045] Determine whether the key power-on state is in a preset open state, or whether the gun insertion signal satisfies a preset connection signal, or whether the continuous photovoltaic charging time is greater than a third preset value, or whether the second power state of the photovoltaic energy storage battery is less than a fourth preset value, or whether the second state of the vehicle door lock is in a preset unlocked state;

[0046] When the key power-on state is in the preset on state, or the gun plug signal satisfies the preset connection signal, or the continuous photovoltaic charging time is greater than the third preset value, or the second power state of the photovoltaic energy storage battery is less than the fourth preset value, or the second state of the vehicle door lock is in the preset unlocked state, the vehicle is controlled to exit the photovoltaic charging mode, and the high-voltage system is controlled to power off the high voltage.

[0047] According to one embodiment of the present application, the current operating condition is that the vehicle is in the preset parking state and there is a remote photovoltaic charging start request, and the control module includes:

[0048] A second acquisition unit, used to acquire a second CAN message of a remote photovoltaic charging request;

[0049] a second judgment unit, configured to obtain a third power state of the photovoltaic energy storage battery and a second power state of the vehicle high-voltage battery based on the second CAN message, and judge whether the third power state of the photovoltaic energy storage battery is greater than a fifth preset value, and whether the second power state of the vehicle high-voltage battery is less than a sixth preset value;

[0050] The second control unit is used to control the high-voltage system to start and power on the high voltage when the third power state of the photovoltaic energy storage battery is greater than the fifth preset value and the second power state of the vehicle high-voltage battery is less than the sixth preset value, and control the photovoltaic system to perform photovoltaic charging on the vehicle high-voltage battery.

[0051] According to one embodiment of the present application, after controlling the photovoltaic system to charge the vehicle high-voltage battery, the second control unit is further used to:

[0052] Obtaining remote request and third power status of photovoltaic energy storage battery;

[0053] Determining whether the remote request is a remote photovoltaic charging shutdown request, or whether the third power state of the photovoltaic energy storage battery is less than a seventh preset value;

[0054] When the remote request is the remote photovoltaic charging shutdown request, or the third power state of the photovoltaic energy storage battery is less than the seventh preset value, the vehicle is controlled to exit the photovoltaic charging mode, and the high-voltage system is controlled to shut down the high voltage.

[0055] According to one embodiment of the present application, the current operating condition is that the vehicle is in a driving state and has a photovoltaic charging request or the vehicle is in a high-voltage power-on state and has a photovoltaic charging request, and the control module includes:

[0056] a third acquisition unit, used to acquire a fourth power state of the photovoltaic energy storage battery and a third power state of the vehicle high-voltage battery;

[0057] a third judgment unit, used to judge whether the fourth power state of the photovoltaic energy storage battery is greater than an eighth preset value, and whether the third power state of the vehicle high-voltage battery is less than a ninth preset value;

[0058] The third control unit is used to control the photovoltaic system to perform photovoltaic charging on the vehicle high-voltage battery when the fourth power state of the photovoltaic energy storage battery is greater than the eighth preset value and the third power state of the vehicle high-voltage battery is less than the ninth preset value.

[0059] According to one embodiment of the present application, after controlling the photovoltaic system to charge the vehicle high-voltage battery, the third control unit is further used to:

[0060] Obtain the fifth power state of the photovoltaic energy storage battery;

[0061] Determining whether a fifth power state of the photovoltaic energy storage battery is less than a tenth preset value;

[0062] When the fifth power state of the photovoltaic energy storage battery is less than the tenth preset value, the vehicle is controlled to exit the photovoltaic charging mode.

[0063] According to the photovoltaic charging start control device proposed in the embodiment of the present application, the current operating condition of the vehicle is obtained, and based on the current operating condition, the photovoltaic charging start control strategy of the vehicle is determined, so as to control the photovoltaic system to perform photovoltaic charging on the vehicle's high-voltage battery according to the photovoltaic charging start control strategy. Thus, the problem that the existing photovoltaic charging technology is not mature enough in charging the high-voltage power battery of the vehicle and cannot take into account all the operating conditions of the vehicle is solved, thereby improving the user experience.

[0064] To achieve the above objectives, the third aspect of the present application proposes 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 charging start-up control method as described in the above embodiments.

[0065] To achieve the above-mentioned purpose, the fourth aspect of the present application proposes a computer-readable storage medium on which a computer program is stored. The program is executed by a processor to implement the photovoltaic charging start-up control method as described in the above-mentioned embodiment.

[0066] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0068] Figure 1 A flowchart of a photovoltaic charging start control method provided according to an embodiment of the present application;

[0069] Figure 2 A schematic diagram of connecting a vehicle and a photovoltaic charging system according to an embodiment of the present application;

[0070] Figure 3 is a flow chart of a photovoltaic charging start control method when a vehicle is in a preset parking state and there is no remote photovoltaic charging start request according to an embodiment of the present application;

[0071] Figure 4It is a flowchart of a photovoltaic charging start control method when a vehicle is in a preset parking state and there is a remote photovoltaic charging start request according to an embodiment of the present application;

[0072] Figure 5 It is a flowchart of a photovoltaic charging start control method when a vehicle is in a driving state / a vehicle is in a high-voltage power-on state and there is a photovoltaic charging request according to an embodiment of the present application;

[0073] Figure 6 A schematic block diagram of a photovoltaic charging start control device provided according to an embodiment of the present application;

[0074] Figure 7 It is a schematic diagram of the structure of a vehicle provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0075] The embodiments of the present application are described in detail below, and examples of the embodiments 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 application, and should not be construed as limiting the present application.

[0076] The photovoltaic charging start control method, device, vehicle and storage medium proposed in the embodiments of the present application are described below with reference to the accompanying drawings. First, the photovoltaic charging start control proposed in the embodiments of the present application will be described with reference to the accompanying drawings.

[0077] Figure 1 This is a flow chart of a photovoltaic charging start-up control method according to an embodiment of the present application.

[0078] Before introducing the photovoltaic charging start control method proposed in the embodiment of the present application, the connection between the vehicle and the photovoltaic charging system is first introduced. Figure 2 As shown, the photovoltaic charging system is connected to the main high-voltage circuit of the vehicle through a high-voltage distribution box, wherein the photovoltaic charging system is equipped with an energy storage battery, which is a low-voltage battery for storing the electrical energy generated by the photovoltaic charging system. The system includes two charging start modes: automatic charging start mode and forced charging start mode. In the automatic charging start mode, if the energy storage battery is not fully charged, the photovoltaic charging system will be disconnected from the main high-voltage battery and will not recharge the main high-voltage battery; when the energy storage battery is fully charged, the system will communicate with the vehicle's main control unit (VCU) and control the boost direct current (DC) module to recharge the main high-voltage battery. In the forced charging start mode, the user can remotely control the photovoltaic charging system through a mobile phone application to recharge the main high-voltage battery, thereby increasing the vehicle's mileage.

[0079] For example, Figure 1 As shown, the photovoltaic charging start control method includes the following steps:

[0080] In step S101, the current operating condition of the vehicle is obtained, and the current operating condition includes the vehicle being in a preset parking state and having no remote photovoltaic charging start request, the vehicle being in a preset parking state and having a remote photovoltaic charging start request, the vehicle being in a driving state and having a photovoltaic charging request, and the vehicle being in a high-voltage power-on state and having a photovoltaic charging request.

[0081] It is understandable that the vehicle's OBD (On-Board Diagnostics) system or similar technology can be used to monitor the vehicle's status in real time, including parking status, driving status, high-voltage power-on status, etc.; the vehicle's real-time status information can be obtained through the vehicle's communication system (such as CAN bus, vehicle network, etc.); and the vehicle's remote communication system (such as vehicle network, mobile phone APP, etc.) can detect whether there is a remote photovoltaic charging start request. The remote photovoltaic charging request can be triggered by user operations (such as sending a charging instruction through a mobile phone APP).

[0082] In step S102, a photovoltaic charging start control strategy for the vehicle is determined based on the current operating conditions.

[0083] In other words, different photovoltaic charging start control strategies can be formulated according to different operating conditions of the vehicle. The formulation of this strategy will take into account the current specific state of the vehicle to ensure that the start of photovoltaic charging meets the operating requirements of the vehicle and does not interfere with the normal operation of the vehicle.

[0084] In step S103, according to the photovoltaic charging start control strategy, the photovoltaic system is controlled to perform photovoltaic charging on the vehicle high-voltage battery.

[0085] After determining the mapping relationship between the operating conditions and the photovoltaic charging start control strategy, the vehicle high-voltage battery can be charged through the control system of the photovoltaic system according to the photovoltaic charging start control strategy. In this way, it can be ensured that the vehicle can efficiently and safely use solar energy for charging under different operating conditions, thereby extending the vehicle's cruising range and reducing dependence on traditional energy.

[0086] For ease of understanding, the following will explain in detail how to control the photovoltaic system to perform photovoltaic charging of the vehicle high voltage according to the photovoltaic charging start control strategy based on different vehicle operating conditions.

[0087] As a possible implementation method, in some embodiments, the current operating condition is that the vehicle is in a preset parking state and there is no remote photovoltaic charging start request. According to the photovoltaic charging start control strategy, the photovoltaic system is controlled to perform photovoltaic charging on the vehicle high voltage, including: obtaining a first CAN message of a static photovoltaic charging request; based on the first CAN message, obtaining a first power state of the photovoltaic energy storage battery, a first state of the vehicle door lock, and a first power state of the vehicle high-voltage battery, and judging whether the first power state of the photovoltaic energy storage battery is greater than a first preset value, whether the first state of the vehicle door lock is in a preset closed state, and whether the first power state of the vehicle high-voltage battery is less than a second preset value; when the first power state of the photovoltaic energy storage battery is greater than the first preset value, and the first state of the vehicle door lock is in a preset closed state, and the first power state of the vehicle high-voltage battery is less than the second preset value, controlling the high-voltage system to start and power on the high voltage, and controlling the photovoltaic system to perform photovoltaic charging on the vehicle high-voltage battery.

[0088] Specifically, when the vehicle is parked and has not received a remote photovoltaic charging start request, if the energy storage battery of the photovoltaic charging system is fully charged, the photovoltaic charging controller can wake itself up and send a CAN message to request photovoltaic charging (i.e., the first CAN message of the static photovoltaic charging request). The VCU is awakened by the first CAN message of the static photovoltaic charging request, and then determines whether the following conditions are all met:

[0089] (1) The first state of charge of the photovoltaic energy storage battery is greater than a first preset value (i.e., the SOC (State Of Charge) of the photovoltaic energy storage battery is greater than 90%);

[0090] (2) The first state of the vehicle door lock is in the preset closed state (i.e., the entire vehicle door lock is closed);

[0091] (3) The first state of charge of the vehicle's high-voltage battery is less than a second preset value (ie, the SOC of the vehicle's high-voltage battery is less than 95%).

[0092] When the above three conditions are met at the same time, the system will execute the next step, that is, control the high-voltage system to start and power on the high voltage, while allowing the photovoltaic charging system to charge the vehicle's high-voltage battery so that the vehicle can be replenished with energy.

[0093] Furthermore, in some embodiments, after controlling the photovoltaic system to charge the vehicle's high-voltage battery, it also includes: obtaining the key power-on state, the gun plug signal, the continuous photovoltaic charging time, the second power state of the photovoltaic energy storage battery and the second state of the vehicle door lock; judging whether the key power-on state is in a preset turn-on state, or whether the gun plug signal satisfies the preset connection signal, or whether the continuous photovoltaic charging time is greater than a third preset value, or whether the second power state of the photovoltaic energy storage battery is less than a fourth preset value, or whether the second state of the vehicle door lock is in a preset unlocked state; when the key power-on state is in the preset turn-on state, or the gun plug signal satisfies the preset connection signal, or the continuous photovoltaic charging time is greater than the third preset value, or the second power state of the photovoltaic energy storage battery is less than the fourth preset value, or the second state of the vehicle door lock is in the preset unlocked state, controlling the vehicle to exit the photovoltaic charging mode, and controlling the high-voltage system to power off the high voltage.

[0094] That is to say, when the vehicle is in a preset parking state and there is no remote photovoltaic charging start request, the VCU will continue to monitor during the photovoltaic charging process. When any of the following conditions is met, the vehicle can be controlled to exit the photovoltaic charging mode and perform high-voltage system high-voltage power-off operation.

[0095] (1) The key is powered on in the preset state (i.e., the key is powered on ON);

[0096] (2) The gun plug signal meets the preset connection signal (i.e. the charging gun is connected);

[0097] (3) The continuous photovoltaic charging time is greater than the third preset value (i.e., the cumulative photovoltaic charging time is greater than 0.5 hours);

[0098] (4) The second state of charge of the photovoltaic energy storage battery is less than a fourth preset value (i.e., the SOC of the photovoltaic energy storage battery is less than 30%);

[0099] (5) The second state of the vehicle door lock is in a preset unlocked state (i.e., the entire vehicle door lock is unlocked).

[0100] In addition, during the photovoltaic charging process of the vehicle, if a vehicle malfunctions, the system will immediately take measures to terminate the photovoltaic charging process and perform high-voltage power-off operations on the entire vehicle to ensure vehicle safety.

[0101] As another possible implementation method, in some embodiments, the current operating condition is that the vehicle is in a preset parking state and there is a remote photovoltaic charging start request. According to the photovoltaic charging start control strategy, the photovoltaic system is controlled to perform photovoltaic charging on the vehicle's high-voltage battery, including: obtaining a second CAN message of the remote photovoltaic charging request; based on the second CAN message, obtaining a third power state of the photovoltaic energy storage battery and a second power state of the vehicle's high-voltage battery, and determining whether the third power state of the photovoltaic energy storage battery is greater than a fifth preset value, and whether the second power state of the vehicle's high-voltage battery is less than a sixth preset value; when the third power state of the photovoltaic energy storage battery is greater than the fifth preset value, and the second power state of the vehicle's high-voltage battery is less than the sixth preset value, controlling the high-voltage system to start and power on the high voltage, and controlling the photovoltaic system to perform photovoltaic charging on the vehicle's high-voltage battery.

[0102] Specifically, when the vehicle is in a preset parking state and receives a remote photovoltaic charging start request, after receiving the remote photovoltaic charging start request, the VCU can send a CAN message (i.e., the second CAN message of the remote photovoltaic charging request) to wake up the VCU and the photovoltaic charging controller. The awakened VCU further determines whether the following conditions are all met:

[0103] (1) The third state of charge of the photovoltaic energy storage battery is greater than the fifth preset value (i.e., the SOC of the photovoltaic energy storage battery is greater than 50%);

[0104] (2) The second state of charge of the vehicle's high-voltage battery is less than a sixth preset value (ie, the vehicle's high-voltage battery SOC is less than 95%).

[0105] When the above two conditions are met at the same time, the system can control the high-voltage system to start and power on the high voltage, while allowing the photovoltaic charging system to charge the vehicle's high-voltage battery so that the vehicle can be replenished with energy.

[0106] Furthermore, in some embodiments, after controlling the photovoltaic system to charge the vehicle's high-voltage battery, it also includes: obtaining a remote request and a third power state of the photovoltaic energy storage battery; determining whether the remote request is a remote photovoltaic charging shutdown request, or whether the third power state of the photovoltaic energy storage battery is less than a seventh preset value; when the remote request is a remote photovoltaic charging shutdown request, or the third power state of the photovoltaic energy storage battery is less than the seventh preset value, controlling the vehicle to exit the photovoltaic charging mode, and controlling the high-voltage system to power off the high voltage.

[0107] That is to say, when the vehicle is in a preset parking state and there is a remote photovoltaic charging start request, during the photovoltaic charging process, when the VCU detects that any of the following conditions are met, the vehicle can be controlled to exit the photovoltaic charging mode and perform high-voltage system high-voltage power-down operation.

[0108] (1) The remote request is a remote photovoltaic charging shutdown request (i.e., a remote photovoltaic charging request shutdown);

[0109] (2) The third state of charge of the photovoltaic energy storage battery is less than the seventh preset value (ie, the SOC of the photovoltaic energy storage battery is less than 20%).

[0110] It should be noted that during the photovoltaic charging process of the vehicle, if a vehicle malfunctions, the system will immediately take measures to terminate the photovoltaic charging process and perform the high-voltage power-off operation of the entire vehicle to ensure vehicle safety.

[0111] As another possible implementation method, in some embodiments, the current operating condition is that the vehicle is in a driving state and there is a photovoltaic charging request or the vehicle is in a high-voltage power-on state and there is a photovoltaic charging request. According to the photovoltaic charging start-up control strategy, the photovoltaic system is controlled to perform photovoltaic charging on the vehicle's high-voltage battery, including: obtaining a fourth power state of the photovoltaic energy storage battery and a third power state of the vehicle's high-voltage battery; determining whether the fourth power state of the photovoltaic energy storage battery is greater than an eighth preset value, and whether the third power state of the vehicle's high-voltage battery is less than a ninth preset value; when the fourth power state of the photovoltaic energy storage battery is greater than the eighth preset value, and the third power state of the vehicle's high-voltage battery is less than the ninth preset value, controlling the photovoltaic system to perform photovoltaic charging on the vehicle's high-voltage battery.

[0112] Specifically, when the vehicle is in driving state and receives a photovoltaic charging request or the vehicle is in high voltage power-on state and receives a photovoltaic charging request, the VCU can directly determine whether the following conditions are all met:

[0113] (1) The fourth state of charge of the photovoltaic energy storage battery is greater than the eighth preset value (i.e., the SOC of the photovoltaic energy storage battery is greater than 90%);

[0114] (2) The third state of charge of the vehicle's high-voltage battery is less than a ninth preset value (ie, the vehicle's high-voltage battery SOC is less than 95%).

[0115] When the above two conditions are met at the same time, the photovoltaic charging system can be controlled to charge the vehicle's high-voltage battery so that the vehicle can be replenished with energy.

[0116] Furthermore, in some embodiments, after controlling the photovoltaic system to charge the vehicle's high-voltage battery, it also includes: obtaining the fifth power state of the photovoltaic energy storage battery; determining whether the fifth power state of the photovoltaic energy storage battery is less than a tenth preset value; when the fifth power state of the photovoltaic energy storage battery is less than the tenth preset value, controlling the vehicle to exit the photovoltaic charging mode.

[0117] That is to say, when the vehicle is in a preset parking state and there is no remote photovoltaic charging start request, during the photovoltaic charging process, the VCU will continue to monitor. When it is detected that the fifth power state of the photovoltaic energy storage battery is less than the tenth preset value (that is, the photovoltaic energy storage battery SOC is less than 30%), the vehicle can be controlled to exit the photovoltaic charging mode.

[0118] To facilitate those skilled in the art to further understand the photovoltaic charging start control method proposed in the embodiment of the present application, the following is combined with Figure 2 to Figure 4 For further elaboration.

[0119] like Figure 3 As shown, the photovoltaic charging start control method when the vehicle is in a preset parking state and there is no remote photovoltaic charging start request includes the following steps:

[0120] Step S301, obtaining a static photovoltaic charging request.

[0121] Step S302: The CAN message wakes up the VCU.

[0122] Step S303, determine whether the SOC of the photovoltaic energy storage battery is greater than 90%, whether the vehicle door lock is closed, and whether the SOC of the vehicle high-voltage battery is less than 95%. If yes, execute step S304, otherwise execute step S303.

[0123] Step S304: the high voltage system is started and the high voltage is powered on.

[0124] Step S305a, determine whether the key is powered on in the ON state, or whether the charging gun is connected, or whether the accumulated photovoltaic charging time is greater than 0.5 hours, or whether the photovoltaic energy storage battery SOC is less than 30%, or whether the vehicle door lock is unlocked. If yes, execute step S306a, otherwise execute step S304.

[0125] Step S305b, determine whether the vehicle has a fault. If so, execute step S306b, otherwise execute step S304.

[0126] Step S306a, the vehicle is powered off at high voltage.

[0127] Step S306b, power off due to failure.

[0128] like Figure 4 As shown, the photovoltaic charging start control method when the vehicle is in a preset parking state and there is a remote photovoltaic charging start request includes the following steps:

[0129] Step S401: The VCU receives a remote photovoltaic charging start request.

[0130] Step S402: The CAN message wakes up the VCU.

[0131] Step S403, determine whether the SOC of the photovoltaic energy storage battery is greater than 50%, and whether the SOC of the vehicle high-voltage battery is less than 95%. If yes, execute step S404, otherwise execute step S403.

[0132] Step S404: the high voltage system is started and the high voltage is powered on.

[0133] Step S405a, determine whether the remote photovoltaic charging request is closed, or whether the photovoltaic energy storage battery SOC is less than 20%. If yes, execute step S406a, otherwise execute step S404.

[0134] Step S405b, determine whether the vehicle has a fault. If so, execute step S406b, otherwise execute step S404.

[0135] Step S406a, the vehicle is powered off at high voltage.

[0136] Step S406b, power off due to failure.

[0137] like Figure 5 As shown, the photovoltaic charging start control method when the vehicle is in a driving state / the vehicle is in a high-voltage power-on state and there is a photovoltaic charging request includes the following steps:

[0138] Step S501: The vehicle is running or the high voltage is powered on, and a photovoltaic charging request is received.

[0139] Step S502, determine whether the SOC of the photovoltaic energy storage battery is greater than 90%, and whether the SOC of the vehicle high-voltage battery is less than 95%. If yes, execute step S501, otherwise execute step S503.

[0140] Step S503, controlling the photovoltaic charging system to charge the vehicle.

[0141] Step S504a, determining whether the SOC of the photovoltaic energy storage battery is less than 30%. If so, executing step S505a, otherwise executing step S503.

[0142] Step S504b, determine whether the vehicle has a fault. If so, execute step S505b, otherwise execute step S503.

[0143] Step S505a, charging is completed.

[0144] Step S505b, interrupt charging.

[0145] According to the photovoltaic charging start control method proposed in the embodiment of the present application, the current operating condition of the vehicle is obtained, and based on the current operating condition, the photovoltaic charging start control strategy of the vehicle is determined, so as to control the photovoltaic system to perform photovoltaic charging on the vehicle's high-voltage battery according to the photovoltaic charging start control strategy. Thus, the problem that the existing photovoltaic charging technology is not mature enough in charging the high-voltage power battery of the vehicle and cannot take into account all the operating conditions of the vehicle is solved, thereby improving the user experience.

[0146] Next, the photovoltaic charging start control device proposed in accordance with the embodiment of the present application will be described with reference to the accompanying drawings.

[0147] Figure 6 It is a block diagram of a photovoltaic charging start control device according to an embodiment of the present application.

[0148] like Figure 6 As shown, the photovoltaic charging start control device 10 includes: an acquisition module 100 , a determination module 200 and a control module 300 .

[0149] Among them, the acquisition module 100 is used to acquire the current operating condition of the vehicle, and the current operating condition includes the vehicle being in a preset parking state and having no remote photovoltaic charging start request, the vehicle being in a preset parking state and having a remote photovoltaic charging start request, the vehicle being in a driving state and having a photovoltaic charging request, and the vehicle being in a high-voltage power-on state and having a photovoltaic charging request;

[0150] A determination module 200, for determining a photovoltaic charging start control strategy for a vehicle based on a current operating condition;

[0151] The control module 300 is used to control the photovoltaic system to perform photovoltaic charging on the vehicle high-voltage battery according to the photovoltaic charging start control strategy.

[0152] Optionally, in some embodiments, the current operating condition is that the vehicle is in a preset parking state and there is no remote photovoltaic charging start request, and the control module 300 includes:

[0153] A first acquisition unit, used to acquire a first CAN message of a static photovoltaic charging request;

[0154] a first judgment unit, configured to obtain, based on the first CAN message, a first power state of the photovoltaic energy storage battery, a first state of the vehicle door lock, and a first power state of the vehicle high-voltage battery, and to judge whether the first power state of the photovoltaic energy storage battery is greater than a first preset value, whether the first state of the vehicle door lock is in a preset closed state, and whether the first power state of the vehicle high-voltage battery is less than a second preset value;

[0155] The first control unit is used to control the high-voltage system to start and power on the high voltage, and control the photovoltaic system to perform photovoltaic charging on the vehicle's high-voltage battery when the first power state of the photovoltaic energy storage battery is greater than a first preset value, the first state of the vehicle door lock is in a preset closed state, and the first power state of the vehicle's high-voltage battery is less than a second preset value.

[0156] Optionally, in some embodiments, after controlling the photovoltaic system to charge the high-voltage battery of the vehicle, the first control unit is further configured to:

[0157] Obtain the key power-on status, gun insertion signal, continuous photovoltaic charging time, the second power state of the photovoltaic energy storage battery and the second state of the vehicle door lock;

[0158] Determine whether the key power-on state is in a preset open state, or whether the gun insertion signal satisfies the preset connection signal, or whether the continuous photovoltaic charging time is greater than a third preset value, or whether the second power state of the photovoltaic energy storage battery is less than a fourth preset value, or whether the second state of the vehicle door lock is in a preset unlocked state;

[0159] When the key power-on state is in the preset on state, or the gun plug signal meets the preset connection signal, or the continuous photovoltaic charging time is greater than the third preset value, or the second power state of the photovoltaic energy storage battery is less than the fourth preset value, or the second state of the vehicle door lock is in the preset unlocked state, the vehicle is controlled to exit the photovoltaic charging mode, and the high-voltage system is controlled to power off the high voltage.

[0160] Optionally, in some embodiments, the current operating condition is that the vehicle is in a preset parking state and there is a remote photovoltaic charging start request, and the control module 300 includes:

[0161] A second acquisition unit, used to acquire a second CAN message of a remote photovoltaic charging request;

[0162] a second judgment unit, configured to obtain a third power state of the photovoltaic energy storage battery and a second power state of the vehicle high-voltage battery based on the second CAN message, and to judge whether the third power state of the photovoltaic energy storage battery is greater than a fifth preset value, and whether the second power state of the vehicle high-voltage battery is less than a sixth preset value;

[0163] The second control unit is used to control the high-voltage system to start and power on the high voltage, and control the photovoltaic system to perform photovoltaic charging on the vehicle's high-voltage battery when the third power state of the photovoltaic energy storage battery is greater than the fifth preset value and the second power state of the vehicle's high-voltage battery is less than the sixth preset value.

[0164] Optionally, in some embodiments, after controlling the photovoltaic system to charge the high-voltage battery of the vehicle, the second control unit is further configured to:

[0165] Obtaining remote request and third power status of photovoltaic energy storage battery;

[0166] Determining whether the remote request is a remote photovoltaic charging shutdown request, or whether the third power state of the photovoltaic energy storage battery is less than a seventh preset value;

[0167] When the remote request is a remote photovoltaic charging shutdown request, or the third power state of the photovoltaic energy storage battery is less than a seventh preset value, the vehicle is controlled to exit the photovoltaic charging mode, and the high-voltage system is controlled to power off the high voltage.

[0168] Optionally, in some embodiments, the current operating condition is that the vehicle is in a driving state and there is a photovoltaic charging request or the vehicle is in a high-voltage power-on state and there is a photovoltaic charging request, and the control module 300 includes:

[0169] a third acquisition unit, used to acquire a fourth power state of the photovoltaic energy storage battery and a third power state of the vehicle high-voltage battery;

[0170] a third judgment unit, used to judge whether the fourth power state of the photovoltaic energy storage battery is greater than an eighth preset value, and whether the third power state of the vehicle high-voltage battery is less than a ninth preset value;

[0171] The third control unit is used to control the photovoltaic system to perform photovoltaic charging on the vehicle high-voltage battery when the fourth power state of the photovoltaic energy storage battery is greater than an eighth preset value and the third power state of the vehicle high-voltage battery is less than a ninth preset value.

[0172] Optionally, in some embodiments, after controlling the photovoltaic system to charge the vehicle high-voltage battery, the third control unit is further configured to:

[0173] Obtain the fifth power state of the photovoltaic energy storage battery;

[0174] Determining whether a fifth power state of the photovoltaic energy storage battery is less than a tenth preset value;

[0175] When the fifth power state of the photovoltaic energy storage battery is less than the tenth preset value, the vehicle is controlled to exit the photovoltaic charging mode.

[0176] It should be noted that the above explanation of the photovoltaic charging start-up control method embodiment is also applicable to the photovoltaic charging start-up control device of this embodiment, and will not be repeated here.

[0177] According to the photovoltaic charging start control device proposed in the embodiment of the present application, the current operating condition of the vehicle is obtained, and based on the current operating condition, the photovoltaic charging start control strategy of the vehicle is determined, so as to control the photovoltaic system to perform photovoltaic charging on the vehicle's high-voltage battery according to the photovoltaic charging start control strategy. Thus, the problem that the existing photovoltaic charging technology is not mature enough in charging the high-voltage power battery of the vehicle and cannot take into account all the operating conditions of the vehicle is solved, thereby improving the user experience.

[0178] Figure 7 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application. The vehicle may include:

[0179] A memory 701 , a processor 702 , and a computer program stored in the memory 701 and executable on the processor 702 .

[0180] When the processor 702 executes the program, the photovoltaic charging start control method provided in the above embodiment is implemented.

[0181] Furthermore, the vehicle also includes:

[0182] The communication interface 703 is used for communication between the memory 701 and the processor 702 .

[0183] The memory 701 is used to store computer programs that can be executed on the processor 702 .

[0184] The memory 701 may include a high-speed RAM (Random Access Memory) memory, and may also include a non-volatile memory, such as at least one disk memory.

[0185] If the memory 701, the processor 702 and the communication interface 703 are implemented independently, the communication interface 703, the memory 701 and the processor 702 can be connected to each other through a bus and communicate with each other. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 7 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.

[0186] Optionally, in a specific implementation, if the memory 701, the processor 702 and the communication interface 703 are integrated on a chip, the memory 701, the processor 702 and the communication interface 703 can communicate with each other through an internal interface.

[0187] The processor 702 may be a CPU (Central Processing Unit), or an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present application.

[0188] The embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the photovoltaic charging startup control method as described above is implemented.

[0189] 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 this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0190] 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 application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more 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.

[0191] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A photovoltaic charging start-up control method, characterized in that: The following steps are involved: Acquire the current operating condition of the vehicle, the current operating condition including the vehicle being in a preset parking state and having no remote photovoltaic charging start request, the vehicle being in the preset parking state and having a remote photovoltaic charging start request, the vehicle being in a driving state and having a photovoltaic charging request, and the vehicle being in a high voltage power-on state and having a photovoltaic charging request; Based on the current operating condition, determining a photovoltaic charging start control strategy for the vehicle; According to the photovoltaic charging start-up control strategy, the photovoltaic system is controlled to perform photovoltaic charging on the vehicle high-voltage battery.

2. The method according to claim 1, characterized in that The current operating condition is that the vehicle is in a preset parking state and there is no remote photovoltaic charging start request, and the photovoltaic system is controlled to perform photovoltaic charging on the vehicle at high voltage according to the photovoltaic charging start control strategy, including: Get the first CAN message of static photovoltaic charging request; Based on the first CAN message, a first power state of the photovoltaic energy storage battery, a first state of the vehicle door lock, and a first power state of the vehicle high-voltage battery are obtained, and it is determined whether the first power state of the photovoltaic energy storage battery is greater than a first preset value, whether the first state of the vehicle door lock is in a preset closed state, and whether the first power state of the vehicle high-voltage battery is less than a second preset value; When the first state of charge of the photovoltaic energy storage battery is greater than the first preset value, the first state of the vehicle door lock is in the preset closed state, and the first state of charge of the vehicle high-voltage battery is less than the second preset value, the high-voltage system is controlled to start and power on the high voltage, and the photovoltaic system is controlled to perform photovoltaic charging on the vehicle high-voltage battery.

3. The method according to claim 2, characterized in that After controlling the photovoltaic system to charge the vehicle high-voltage battery, the method further includes: Obtain the key power-on status, gun insertion signal, continuous photovoltaic charging time, the second power state of the photovoltaic energy storage battery and the second state of the vehicle door lock; Determine whether the key power-on state is in a preset open state, or whether the gun insertion signal satisfies a preset connection signal, or whether the continuous photovoltaic charging time is greater than a third preset value, or whether the second power state of the photovoltaic energy storage battery is less than a fourth preset value, or whether the second state of the vehicle door lock is in a preset unlocked state; When the key power-on state is in the preset on state, or the gun plug signal satisfies the preset connection signal, or the continuous photovoltaic charging time is greater than the third preset value, or the second power state of the photovoltaic energy storage battery is less than the fourth preset value, or the second state of the vehicle door lock is in the preset unlocked state, the vehicle is controlled to exit the photovoltaic charging mode, and the high-voltage system is controlled to power off the high voltage.

4. The method according to claim 1, characterized in that: The current operating condition is that the vehicle is in the preset parking state and there is a remote photovoltaic charging start request, and the photovoltaic system is controlled to perform photovoltaic charging on the high-voltage battery of the vehicle according to the photovoltaic charging start control strategy, including: Get the second CAN message of the remote photovoltaic charging request; Based on the second CAN message, obtaining a third power state of the photovoltaic energy storage battery and a second power state of the vehicle high-voltage battery, and determining whether the third power state of the photovoltaic energy storage battery is greater than a fifth preset value, and whether the second power state of the vehicle high-voltage battery is less than a sixth preset value; When the third state of charge of the photovoltaic energy storage battery is greater than the fifth preset value and the second state of charge of the vehicle's high-voltage battery is less than the sixth preset value, the high-voltage system is controlled to start and power on the high voltage, and the photovoltaic system is controlled to perform photovoltaic charging on the vehicle's high-voltage battery.

5. The method according to claim 4, characterized in that After controlling the photovoltaic system to charge the vehicle high-voltage battery, the method further includes: Obtaining remote request and third power status of photovoltaic energy storage battery; Determining whether the remote request is a remote photovoltaic charging shutdown request, or whether the third power state of the photovoltaic energy storage battery is less than a seventh preset value; When the remote request is the remote photovoltaic charging shutdown request, or the third power state of the photovoltaic energy storage battery is less than the seventh preset value, the vehicle is controlled to exit the photovoltaic charging mode, and the high-voltage system is controlled to shut down the high voltage.

6. The method according to claim 1, characterized in that The current operating condition is that the vehicle is in a driving state and has a photovoltaic charging request or the vehicle is in a high-voltage power-on state and has a photovoltaic charging request, and the photovoltaic system is controlled to perform photovoltaic charging on the high-voltage battery of the vehicle according to the photovoltaic charging start control strategy, including: Obtaining a fourth power state of the photovoltaic energy storage battery and a third power state of the vehicle high-voltage battery; Determining whether the fourth state of charge of the photovoltaic energy storage battery is greater than an eighth preset value, and whether the third state of charge of the vehicle high-voltage battery is less than a ninth preset value; When the fourth state of charge of the photovoltaic energy storage battery is greater than the eighth preset value and the third state of charge of the vehicle high-voltage battery is less than the ninth preset value, the photovoltaic system is controlled to perform photovoltaic charging on the vehicle high-voltage battery.

7. The method according to claim 6, characterized in that After controlling the photovoltaic system to charge the vehicle high-voltage battery, the method further includes: Obtain the fifth power state of the photovoltaic energy storage battery; Determining whether a fifth power state of the photovoltaic energy storage battery is less than a tenth preset value; When the fifth power state of the photovoltaic energy storage battery is less than the tenth preset value, the vehicle is controlled to exit the photovoltaic charging mode.

8. A photovoltaic charging start control device, characterized in that: include: an acquisition module, configured to acquire a current operating condition of the vehicle, wherein the current operating condition includes the vehicle being in a preset parking state and having no remote photovoltaic charging start request, the vehicle being in the preset parking state and having a remote photovoltaic charging start request, the vehicle being in a driving state and having a photovoltaic charging request, and the vehicle being in a high voltage power-on state and having a photovoltaic charging request; A determination module, configured to determine a photovoltaic charging start control strategy for the vehicle based on the current operating condition; The control module is used to control the photovoltaic system to perform photovoltaic charging on the vehicle high-voltage battery according to the photovoltaic charging start control strategy.

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 charging start-up control method according to any one of claims 1 to 7.

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 charging start-up control method as described in any one of claims 1 to 7.

Images