Control method and device of vehicle power supply system, electronic device, vehicle and computer program product

Abstract

The application discloses a control method and device of a vehicle power supply system, an electronic device, a vehicle and a computer program product, and relates to the technical field of vehicle control. The control method comprises the following steps: controlling the low-voltage power supply of the whole vehicle according to low-voltage power supply opening times, the low-voltage power supply opening times are multiple and are set at intervals, and the low-voltage power supply opening time is the starting time of the low-voltage power supply for the low-voltage power supply of the whole vehicle each time. The application can avoid the problem of battery depletion of the vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle control, and more particularly, to a control method of a vehicle power supply system, a control device of a vehicle power supply system, a vehicle power supply system, an electronic device, a vehicle, and a computer program product. BACKGROUND

[0002] When an electric vehicle is transported by a roll-on / roll-off ship, the vehicle battery state needs to be monitored in real time to avoid the vehicle battery from burning out due to thermal runaway, because the transportation time is relatively long. Currently, an operator sets a low-voltage power supply of the vehicle to continuously supply power to the entire vehicle, so as to ensure that a detection device of the vehicle is in an open state to detect the battery state of the vehicle. However, in long-distance transportation, this mode may cause the problem of battery depletion of the vehicle. SUMMARY

[0003] The embodiments of the present application provide a control method of a vehicle power supply system, a control device of a vehicle power supply system, a vehicle power supply system, an electronic device, a vehicle, and a computer program product, which can avoid the problem of battery depletion of the vehicle.

[0004] The control method of the vehicle power supply system in the embodiments of the present application comprises: controlling the low-voltage power supply of the entire vehicle according to the low-voltage power supply opening time, the low-voltage power supply opening time being a plurality of intervals, and the low-voltage power supply opening time being the start time of the low-voltage power supply for the entire vehicle each time.

[0005] In some embodiments, the low-voltage power supply opening time comprises a preset time and a wake-up time, and the controlling the low-voltage power supply of the entire vehicle according to the low-voltage power supply opening time comprises: controlling the low-voltage power supply of the entire vehicle according to the preset time, the preset time being the start time of the low-voltage power supply for the entire vehicle the first time; obtaining state information of the high-voltage power supply, and determining the wake-up time according to the state information of the high-voltage power supply, the wake-up time being the start time of the low-voltage power supply for the entire vehicle the next time; and controlling the low-voltage power supply of the entire vehicle according to the wake-up time.

[0006] In some embodiments, the low-voltage power supply opening time comprises a preset time and a wake-up time, and the controlling the low-voltage power supply of the entire vehicle according to the low-voltage power supply opening time comprises: controlling the low-voltage power supply of the entire vehicle according to the preset time, the preset time being the start time of the low-voltage power supply for the entire vehicle the first time; obtaining the state of charge of the high-voltage power supply, and determining the wake-up time according to the state of charge of the high-voltage power supply, the wake-up time being the start time of the low-voltage power supply for the entire vehicle the next time; and controlling the low-voltage power supply of the entire vehicle according to the wake-up time.

[0007] In some embodiments, the wake-up time is negatively correlated with a state of charge of the high-voltage power supply.

[0008] In some embodiments, the vehicle power supply system comprises a control device, a wireless communication gateway, and a low-voltage power supply circuit, and the control of the low-voltage power supply of the entire vehicle according to the preset time comprises: the control device sends a low-voltage power supply instruction to the wireless communication gateway in response to the current time being equal to the preset time; and the wireless communication gateway determines a target vehicle according to the low-voltage power supply instruction, and turns on the low-voltage power supply circuit of the target vehicle to supply low-voltage power to the entire vehicle.

[0009] In some embodiments, the low-voltage power supply instruction comprises frame number information, and the wireless communication gateway determines the target vehicle according to the low-voltage power supply instruction by using the frame number information.

[0010] In some embodiments, the vehicle power supply system further comprises a data acquisition tool and an interface module, and the turning on of the low-voltage power supply circuit of the target vehicle to supply low-voltage power to the entire vehicle comprises: the data acquisition tool receives the low-voltage power supply instruction, lowers the level of the wake-up wire harness through the interface module, connects the wireless communication gateway, and connects the low-voltage power supply circuit through the interface module and the wake-up wire harness; and in response to the lowering of the level of the wake-up wire harness, the low-voltage power supply circuit is controlled to be turned on to supply low-voltage power to the entire vehicle.

[0011] In some embodiments, the low-voltage power supply circuit comprises a low-voltage power supply controller and an internal contactor, and the turning on of the low-voltage power supply circuit to supply low-voltage power to the entire vehicle in response to the lowering of the level of the wake-up wire harness comprises: the internal contactor is controlled to be attracted in response to the lowering of the level of the wake-up wire harness from high to low; and in the case that the internal contactor is attracted, the low-voltage power supply of the target vehicle is used to supply low-voltage power to the entire vehicle.

[0012] In some embodiments, the vehicle power supply system further comprises a data acquisition tool and an interface module, and the interface module comprises a wire harness connector or a diagnostic interface, and the turning on of the low-voltage power supply circuit of the target vehicle to supply low-voltage power to the entire vehicle comprises: the data acquisition tool receives the low-voltage power supply instruction, lowers the level of the wake-up wire harness through the wire harness connector, connects the wireless communication gateway, and connects the low-voltage power supply circuit through the wire harness connector and the wake-up wire harness; or the data acquisition tool receives the low-voltage power supply instruction, lowers the level of the wake-up wire harness through the diagnostic interface, connects the wireless communication gateway, and connects the low-voltage power supply circuit through the diagnostic interface and the wake-up wire harness; and in response to the lowering of the level of the wake-up wire harness, the low-voltage power supply circuit is controlled to be turned on to supply low-voltage power to the entire vehicle.

[0013] In some embodiments, the vehicle power supply system comprises a control device and a wireless communication gateway, and the method for obtaining the state of charge of the high-voltage power supply comprises: in the case of low-voltage power supply of the whole vehicle, the high-voltage power supply controller obtains the state of charge of the high-voltage power supply and sends it to the control device through the wireless communication gateway.

[0014] In some embodiments, the vehicle power supply system further comprises a data acquisition tool, and the method for obtaining the state of charge of the high-voltage power supply in the case of low-voltage power supply of the whole vehicle comprises: in the case of low-voltage power supply of the whole vehicle, the high-voltage power supply controller obtains the state of charge of the high-voltage power supply and transmits it to the data acquisition tool, and the data acquisition tool is connected to the wireless communication gateway; the data acquisition tool sends the state of charge of the high-voltage power supply to the control device through the wireless communication gateway.

[0015] In some embodiments, the method for obtaining the state of charge of the high-voltage power supply in the case of low-voltage power supply of the whole vehicle comprises: in the case of low-voltage power supply of the whole vehicle, the high-voltage power supply controller obtains the state of charge of the high-voltage power supply and sends it to the CAN communication network; in the case that the data acquisition tool detects the presence of the state of charge of the high-voltage power supply on the CAN communication network, the data acquisition tool acquires the state of charge of the high-voltage power supply from the CAN communication network.

[0016] In some embodiments, the vehicle power supply system further comprises a server, a control device, a wireless communication gateway, and a low-voltage power supply circuit, and the control method further comprises: the control device receives a low-voltage power supply instruction from the server and sends it to the wireless communication gateway; the wireless communication gateway determines a target vehicle according to the low-voltage power supply instruction and turns on the low-voltage power supply circuit of the target vehicle to supply low-voltage power to the whole vehicle.

[0017] In some embodiments, the vehicle power supply system further comprises a data acquisition tool and an interface module, and the method for supplying low-voltage power to the whole vehicle according to the low-voltage power supply instruction comprises: the data acquisition tool receives the low-voltage power supply instruction, reduces the level of the wake-up wire harness through the interface module, and connects the low-voltage power supply circuit through the interface module and the wake-up wire harness; in response to the reduction of the level of the wake-up wire harness, the low-voltage power supply circuit is turned on to supply low-voltage power to the whole vehicle.

[0018] In some embodiments, the vehicle power supply system further comprises a base station, a satellite and a satellite transceiver, and the control device receives the low-voltage power supply instruction from the server, including: the base station receives the low-voltage power supply instruction from the server and sends the low-voltage power supply instruction to the satellite; the satellite receives the low-voltage power supply instruction and sends it to the control device through the satellite transceiver.

[0019] The application further provides a control device of a vehicle power supply system, which comprises a control module; the control module is configured to control the low-voltage power supply of the whole vehicle according to the low-voltage power supply start time, and the low-voltage power supply start time is multiple and is arranged at intervals.

[0020] The application further provides an electronic device, which comprises a memory and a processor, the memory is configured to store a computer program, and the processor implements the control method in any one of the above embodiments when executing the computer program.

[0021] The application further provides a vehicle comprising the control device of the vehicle power supply system in any one of the above embodiments or the electronic device in any one of the above embodiments.

[0022] The application further provides a computer program product, which stores a computer program, and the program is executed by a processor to implement the control method in any one of the above embodiments.

[0023] In the control method of the vehicle power supply system, the control device of the vehicle power supply system, the electronic device, the vehicle and the computer program product provided by the application, the number of low-voltage power supply start times is multiple and arranged at intervals, so that the low-voltage power supply of the whole vehicle can be determined according to the low-voltage power supply start time, and the interval length between the start times of two adjacent low-voltage power supplies of the whole vehicle, so that the low-voltage power supply of the whole vehicle can be started at a fixed time, and the problem of power loss of the vehicle power supply due to long-time maintenance of the low-voltage power supply of the whole vehicle during long-distance transportation of the vehicle can be avoided.

[0024] Additional aspects and advantages of the embodiments will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and / or can be learned by practice of the embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0025] The above and / or additional aspects and advantages of the application will become apparent and be readily appreciated from the following description, taken in conjunction with the following drawings in which:

[0026] Figure 1is a flowchart of a control method of a vehicle power supply system according to some embodiments of the present application;

[0027] Figure 2 is a structural diagram of a control device of a vehicle power supply system according to some embodiments of the present application;

[0028] Figure 3 is a flowchart of a control method of a vehicle power supply system according to some embodiments of the present application, in which the low-voltage power supply of the whole vehicle is controlled according to the low-voltage power supply start time;

[0029] Figure 4 is a flowchart of a control method of a vehicle power supply system according to some embodiments of the present application, in which the low-voltage power supply of the whole vehicle is controlled according to the low-voltage power supply start time;

[0030] Figure 5 is a structural diagram of a vehicle power supply system according to some embodiments of the present application;

[0031] Figure 6 is a flowchart of a control method of a vehicle power supply system according to some embodiments of the present application, in which the low-voltage power supply of the whole vehicle is controlled according to the preset time;

[0032] Figure 7 is a flowchart of a control method of a vehicle power supply system according to some embodiments of the present application, in which the target vehicle is determined according to the low-voltage power supply instruction;

[0033] Figure 8 is a structural diagram of a vehicle power supply system according to some embodiments of the present application;

[0034] Figure 9 is a flowchart of a control method of a vehicle power supply system according to some embodiments of the present application, in which the low-voltage power supply of the whole vehicle is controlled by controlling the conduction of the low-voltage power supply circuit of the target vehicle;

[0035] Figure 10 is a flowchart of a control method of a vehicle power supply system according to some embodiments of the present application, in which the low-voltage power supply of the whole vehicle is controlled by controlling the conduction of the low-voltage power supply circuit in response to the decrease of the level of the wake-up wire harness;

[0036] Figure 11 is a flowchart of a control method of a vehicle power supply system according to some embodiments of the present application, in which the target vehicle is determined according to the low-voltage power supply instruction, and the low-voltage power supply of the whole vehicle is controlled by controlling the conduction of the low-voltage power supply circuit of the target vehicle;

[0037] Figure 12 is a flowchart of a control method of a vehicle power supply system according to some embodiments of the present application, in which the state of charge of the high-voltage power supply is obtained, and the wake-up time is determined according to the state of charge of the high-voltage power supply;

[0038] Figure 13 This is a schematic diagram of the process in which, in the case of low-voltage power supply to the whole vehicle, the high-voltage power controller obtains the state of charge of the high-voltage power supply and sends it to the control device through a wireless communication gateway in the control method of the vehicle power supply system of some embodiments of this application.

[0039] Figure 14 This is a flowchart illustrating the process of a vehicle power supply system control method according to some embodiments of this application, in which the high-voltage power controller acquires the state of charge of the high-voltage power supply and transmits it to the data acquisition tool when the vehicle is under low-voltage power supply.

[0040] Figure 15 This is a structural schematic diagram of a vehicle power supply system according to some embodiments of this application;

[0041] Figure 16 This is a flowchart illustrating a control method for a vehicle power supply system according to some embodiments of this application;

[0042] Figure 17 This is a schematic diagram of the process of determining the target vehicle according to the low-voltage power supply command and controlling the low-voltage power supply circuit of the target vehicle to provide low-voltage power supply to the whole vehicle in some embodiments of the vehicle power supply system control method of this application.

[0043] Figure 18 This is a flowchart illustrating the process of receiving a low-voltage power supply command from a server in the control method of a vehicle power supply system according to some embodiments of this application.

[0044] Figure 19 This is a structural schematic diagram of a vehicle according to certain embodiments of this application;

[0045] Figure 20 This is a schematic diagram showing the connection state of a computer program product and a processor according to certain embodiments of this application.

[0046] Explanation of key component symbols:

[0047] 100 vehicles;

[0048] Control device 10 for vehicle power supply system;

[0049] Control module 11;

[0050] Processor 20;

[0051] Computer program product 200; Computer program 202;

[0052] Electronic device 30. Detailed Implementation

[0053] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference numbers represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the embodiments of the present application, and cannot be understood as a limitation on the embodiments of the present application.

[0054] In the process of transoceanic transportation of electric vehicles by using a roll-on / roll-off ship, considering the special working condition that the sea voyage usually needs to last for several days or weeks, ensuring the stability of the high-voltage power supply system has become an important part of ensuring the safety of the entire transportation process. Therefore, during the transportation of electric vehicles, the battery state of the battery must be continuously tracked. This is because in a closed cabin environment, if the lithium battery of an electric vehicle locally overheats or internally shorts, it may cause uncontrollable heat diffusion phenomenon, for example, the lithium battery of an electric vehicle catches fire and spreads, and then causes multiple vehicles in the cabin to catch fire and burn. In order to maintain the normal operation of the monitoring system, the usual practice is to keep the connection state of the vehicle-mounted low-voltage power supply and the vehicle electrical system, and continuously output power by the low-voltage power supply to maintain the operation of the low-voltage electrical equipment inside the vehicle, including the equipment for detecting the battery state, so as to ensure that the battery state is continuously tracked. However, this power supply mode has problems in actual application. When the ship sails for a long time, the continuously working low-voltage electrical equipment inside the vehicle (including determination modules, data acquisition devices, communication units, etc.) will gradually consume the electrical energy stored in the low-voltage power supply. As the sailing time increases, the remaining electrical energy of the low-voltage power supply and the high-voltage power supply for supplying power to the low-voltage power supply may gradually decrease to below the critical value (i.e., the battery is in a state of power loss), thereby affecting the normal use of the vehicle. Therefore, how to avoid the problem of battery power loss of the electric vehicle during long-time transportation has become a difficult problem that needs to be solved by those skilled in the art. To solve this problem, the present application provides a control method of a vehicle power supply system (as shown in Figure 1 , a control device 10 of a vehicle power supply system (as shown in Figure 2 ), an electronic device 30 (as shown in Figure 19 ), a vehicle 100 (as shown in Figure 19 ), and a computer program product 200 (as shown in Figure 20 ).

[0055] Please refer to Figure 1 and Figure 2 , the control method of the vehicle power supply system of the embodiments of the present application comprises:

[0056] 03: controlling the whole vehicle low-voltage power supply according to the low-voltage power supply opening time, the low-voltage power supply opening time being multiple interval settings, and the low-voltage power supply opening time being the start time of the low-voltage power supply for the whole vehicle low-voltage power supply each time.

[0057] The control method of the vehicle power supply system can be applied to the control device 10 of the vehicle power supply system. The control device 10 of the vehicle power supply system in the embodiments of the present application comprises a control module 11, wherein the control module 11 is configured to control the low-voltage power supply of the vehicle according to the low-voltage power supply start time. The low-voltage power supply start time is a plurality of intervals. The low-voltage power supply start time is the start time of the low-voltage power supply for the vehicle each time.

[0058] Specifically, the control device 10 of the vehicle power supply system is one of the core control components installed in the vehicle, responsible for managing and coordinating the operation of the vehicle power supply system in the vehicle. The control device 10 of the vehicle power supply system is a device that ensures that the battery of the vehicle does not run out of power during transportation. The control device 10 of the vehicle power supply system can control the low-voltage power supply of the vehicle according to the preset start time of the low-voltage power supply for the vehicle, and obtain the state of charge of the high-voltage power supply, so as to determine the wake-up time according to the state of charge of the high-voltage power supply. In the present application, the control device 10 of the vehicle power supply system comprises a control module 11, and the control device 10 of the vehicle power supply system is configured to control the low-voltage power supply of the vehicle through the control module 11 according to the low-voltage power supply start time.

[0059] Further, the number of low-voltage power supply start times is a plurality, for example, the low-voltage power supply start times can be 6 hours, 12 hours, 18 hours and 24 hours. The control module 11 controls the low-voltage power supply of the vehicle according to the low-voltage power supply start time, which can realize the wake-up of the vehicle every 6 hours, controls the low-voltage power supply of the vehicle, and realizes the timed detection of the state of the vehicle battery, avoiding the problem of the vehicle battery running out of power during long-time transportation.

[0060] Please refer to Figure 2 and Figure 3 , the low-voltage power supply start time comprises a preset time and a wake-up time, 03: controlling the low-voltage power supply of the vehicle according to the low-voltage power supply start time, comprising:

[0061] 031: controlling the low-voltage power supply of the vehicle according to the preset time, wherein the preset time is the start time of the low-voltage power supply for the vehicle;

[0062] 032: obtaining the state information of the high-voltage power supply, and determining the wake-up time according to the state information of the high-voltage power supply, wherein the wake-up time is the start time of the low-voltage power supply for the vehicle next time;

[0063] 033: controlling the low-voltage power supply of the vehicle according to the wake-up time.

[0064] The control method of the vehicle power supply system can be applied to the control device 10 of the vehicle power supply system. The control device 10 of the vehicle power supply system in the embodiments of the present application comprises a control module 11. The control module 11 is configured to control the low-voltage power supply to supply low-voltage power to the whole vehicle according to a preset time, the preset time being the start time of the first time that the low-voltage power supply supplies low-voltage power to the whole vehicle; acquire state information of the high-voltage power supply, and determine a wake-up time according to the state information of the high-voltage power supply, the wake-up time being the start time of the next time that the low-voltage power supply supplies low-voltage power to the whole vehicle; and control the low-voltage power supply to supply low-voltage power to the whole vehicle according to the wake-up time.

[0065] Specifically, the preset time refers to a specific time node programmed by the control system in advance, which is used to trigger the power supply operation of the low-voltage power supply to supply low-voltage power to the whole vehicle, i.e., the preset time is the start time of the first time that the low-voltage power supply supplies low-voltage power to the whole vehicle (for example, the initial trigger time when the low-voltage power supply switches from the sleep mode to the power supply mode). In the vehicle transportation scenario, the specific time node can also be set by the operator as needed. For example, in the process of roll-on / roll-off ship transportation, the preset time can be set to the first wake-up at the 6th hour after the ship departs from the port, for detecting the initial state of the vehicle battery.

[0066] Further, the state information of the high-voltage power supply includes the state of charge of the high-voltage power supply, which is the percentage of the current available amount of the high-voltage power supply to the total amount of the high-voltage power supply. The state of charge is a core parameter of the energy management of the vehicle battery. Since the high-voltage power supply is used to charge the low-voltage power supply in the process of roll-on / roll-off ship transportation, when the whole vehicle is supplied with low-voltage power by the low-voltage power supply, the device for detecting the state of the vehicle battery in the low-voltage device of the whole vehicle can detect the state of charge of the high-voltage power supply, so that the wake-up time is determined by the determination module 12 according to the state of charge of the high-voltage power supply. The wake-up time is the start time of the next time that the low-voltage power supply supplies low-voltage power to the whole vehicle (for example, the time when the low-voltage power supply switches from the sleep mode to the power supply mode next time). For the relationship between the wake-up time and the state of charge of the high-voltage power supply, for example, if the state of charge of the battery is detected to be 90%, the wake-up time can be set to five hours later, and if the state of charge of the battery is detected to be 80%, the wake-up time can be set to seven hours later.

[0067] It can be understood that the present application provides a control method of a vehicle power supply system. Since the number of low-voltage power supply start times is multiple and is arranged at intervals, the low-voltage power supply needs to supply low-voltage power to the whole vehicle at what time and the interval length between the start times of two adjacent times of low-voltage power supply to the whole vehicle can be determined according to the low-voltage power supply start times, so that the low-voltage power supply to the whole vehicle is started at a fixed time, thereby avoiding the problem that the vehicle power supply is depleted due to long-time maintenance of low-voltage power supply to the whole vehicle in the process of long-distance transportation of the vehicle.

[0068] In some embodiments, please refer to Figure 2 andFigure 4 The low-voltage power supply start time includes a preset time and a wake-up time, 03: controlling the low-voltage power supply of the whole vehicle according to the low-voltage power supply start time, including:

[0069] 034: controlling the low-voltage power supply of the whole vehicle according to the preset time, the preset time being the start time of the low-voltage power supply of the whole vehicle for the first time;

[0070] 035: obtaining the state of charge of the high-voltage power supply, and determining the wake-up time according to the state of charge of the high-voltage power supply, the wake-up time being the start time of the low-voltage power supply of the whole vehicle for the next time;

[0071] 036: controlling the low-voltage power supply of the whole vehicle according to the wake-up time.

[0072] The control method of the vehicle power supply system can be applied to the control device 10 of the vehicle power supply system. The control module 11 is used to control the low-voltage power supply of the whole vehicle according to the preset time, the preset time being the start time of the low-voltage power supply of the whole vehicle for the first time; obtain the state of charge of the high-voltage power supply, and determine the wake-up time according to the state of charge of the high-voltage power supply, the wake-up time being the start time of the low-voltage power supply of the whole vehicle for the next time; and control the low-voltage power supply of the whole vehicle according to the wake-up time.

[0073] Specifically, the preset time refers to a specific time node programmed by the control system in advance, which is used to trigger the power supply operation of the low-voltage power supply of the whole vehicle, that is, the preset time is the start time of the low-voltage power supply of the whole vehicle for the first time (for example, the initial triggering time when the low-voltage power supply switches from the sleep mode to the power supply mode). In the vehicle transportation scenario, the specific time node can also be set by the operator as needed. For example, in the process of roll-on / roll-off ship transportation, the preset time can be set to wake up for the first time at the 6th hour after the ship departs, so as to detect the initial state of the vehicle battery.

[0074] Further, the state information of the high-voltage power supply includes a state of charge of the high-voltage power supply, and the state of charge is a percentage of a current available amount of the high-voltage power supply to a total amount of capacity, and the state of charge is a core parameter of vehicle battery energy management. Since the high-voltage power supply is used to charge the low-voltage power supply during the roll-on / roll-off ship transportation, when the entire vehicle is powered by the low-voltage power supply, a device for detecting the state of the vehicle battery in the low-voltage device of the entire vehicle can detect the state of charge of the high-voltage power supply, so as to determine the wake-up time by the determination module 12 according to the state of charge of the high-voltage power supply. The wake-up time is the start time of the next low-voltage power supply of the low-voltage power supply to the entire vehicle (for example, the time when the low-voltage power supply switches from the sleep mode to the power supply mode next time). For the relationship between the wake-up time and the state of charge of the high-voltage power supply, for example, if the state of charge of the battery is detected to be 90%, the wake-up time can be set to five hours later, and if the state of charge of the battery is detected to be 80%, the wake-up time can be set to seven hours later.

[0075] It can be understood that the application provides a control method of a vehicle power supply system. Since the number of low-voltage power supply start times is multiple and is arranged at intervals, the low-voltage power supply needs to supply power to the entire vehicle at what time and the interval length between the start times of adjacent two low-voltage power supplies of the entire vehicle can be determined according to the low-voltage power supply start times, so as to realize the low-voltage power supply of the entire vehicle at a fixed time, thereby avoiding the problem that the vehicle power supply is depleted due to long-time maintenance of the low-voltage power supply of the entire vehicle during long-distance transportation.

[0076] In some embodiments, referring to Figure 2 , Figure 3 and Figure 4 , the wake-up time is negatively correlated with the state of charge of the high-voltage power supply.

[0077] It can be understood that since a certain amount of power supply is consumed each time the vehicle is woken up and the low-voltage power supply of the entire vehicle is performed, the less the amount of the high-voltage power supply, the longer the time interval between adjacent two low-voltage power supplies of the entire vehicle, i.e. the wake-up time, so as to avoid the battery depletion phenomenon due to frequent low-voltage power supply of the entire vehicle.

[0078] In some embodiments, referring to Figure 2 , Figure 5 and Figure 6 , the vehicle power supply system includes a control device, a wireless communication gateway, and a low-voltage power supply circuit, the wireless communication gateway is connected to the control device and the low-voltage power supply circuit, and the control device is configured to control the low-voltage power supply circuit to supply power to the entire vehicle according to a preset time, including:

[0079] 0341: The control device sends a low-voltage power supply instruction to the wireless communication gateway in response to the current time being equal to the preset time;

[0080] 0343: The wireless communication gateway determines the target vehicle according to the low-voltage power supply instruction, and controls the low-voltage power supply circuit of the target vehicle to be turned on to supply low-voltage power to the whole vehicle.

[0081] The control method of the vehicle power supply system can be applied to the control device 10 of the vehicle power supply system. The control module 11 is configured to send a low-voltage power supply instruction to the wireless communication gateway through the control equipment in response to the current time being equal to the preset time. The wireless communication gateway determines the target vehicle according to the low-voltage power supply instruction, and controls the low-voltage power supply circuit of the target vehicle to be turned on to supply low-voltage power to the whole vehicle.

[0082] Specifically, referring to Figure 5 , the vehicle power supply system includes a control device, a wireless communication gateway, and a low-voltage power supply circuit. The wireless communication gateway is connected to the control device and the low-voltage power supply circuit. The control device is the core decision unit of the vehicle power supply system, and can execute timing tasks and generate various control instructions to ensure the safety of the vehicle power supply system. The wireless communication gateway is a module in the vehicle power supply system that undertakes functions such as protocol conversion, data routing, device management, and safety control. In this application, the wireless communication gateway is used to receive a low-voltage power supply instruction from the control device, determine the target vehicle according to the vehicle frame number information in the low-voltage power supply instruction, and send the low-voltage power supply instruction to the target vehicle. After the low-voltage power supply circuit of the target vehicle receives the low-voltage power supply instruction, the low-voltage power supply circuit of the target vehicle controls the low-voltage power supply of the whole vehicle.

[0083] Please refer to Figure 2 , Figure 5 and Figure 7 , in some embodiments, the low-voltage power supply instruction includes vehicle frame number information, and the wireless communication gateway determines the target vehicle according to the low-voltage power supply instruction, which includes:

[0084] 03431: The wireless communication gateway determines the target vehicle according to the vehicle frame number information.

[0085] The control method of the vehicle power supply system can be applied to the control device 10 of the vehicle power supply system. The control module 11 is configured to send a low-voltage power supply instruction to the wireless communication gateway through the control equipment in response to the current time being equal to the preset time. The wireless communication gateway determines the target vehicle according to the low-voltage power supply instruction, and controls the low-voltage power supply circuit of the target vehicle to be turned on to supply low-voltage power to the whole vehicle.

[0086] Specifically, the low-voltage power supply instruction includes vehicle frame number information, which can be used to help the wireless communication gateway lock the target vehicle receiving the instruction.

[0087] Please refer to Figure 2 , Figure 8 and Figure 9In some embodiments, the vehicle power supply system further comprises a data acquisition tool and an interface module, the data acquisition tool is connected to the wireless communication gateway, the data acquisition tool is connected to the low-voltage power supply circuit through the interface module and the wake-up wire harness,0343: controlling the low-voltage power supply of the target vehicle through the low-voltage power supply circuit of the target vehicle to supply low-voltage power to the whole vehicle, including:

[0088] 03432: The data acquisition tool receives a low-voltage power supply instruction, reduces the level of the wake-up wire harness through the interface module, and connects the low-voltage power supply circuit through the interface module and the wake-up wire harness.

[0089] 03433: In response to the reduction of the level of the wake-up wire harness, the low-voltage power supply circuit is controlled to be turned on to supply low-voltage power to the whole vehicle.

[0090] The control method of the vehicle power supply system described above can be applied to the control device 10 of the vehicle power supply system. The control module 11 is used to receive a low-voltage power supply instruction by the data acquisition tool, reduce the level of the wake-up wire harness through the interface module, connect the low-voltage power supply circuit through the interface module and the wake-up wire harness, and control the low-voltage power supply circuit to be turned on in response to the reduction of the level of the wake-up wire harness to supply low-voltage power to the whole vehicle.

[0091] Specifically, the data acquisition tool is a peripheral tool responsible for receiving and analyzing low-voltage power supply instructions from the control unit. The connection between the data acquisition tool and the wireless communication gateway can be a communication connection or a hard-wired connection. The interface module can be a vehicle diagnostic interface or a wire harness connector (the wire harness connector can connect the low-voltage power supply circuit through a hard-wired connection, and the wire harness connector can allow the data acquisition tool to directly connect the low-voltage power supply circuit through a hard-wired connection without going through the vehicle diagnostic interface). The data acquisition tool is connected to the interface module. Taking the vehicle diagnostic interface as an example, the vehicle diagnostic interface has sixteen pins. Among the sixteen pins of the vehicle diagnostic interface, two are used to connect the CAN network, and three are respectively connected to the constant power supply, the power ground, and the communication ground of the vehicle. Therefore, the other pins of the vehicle diagnostic interface can be used for the control method provided by the present application (i.e., for connecting the wake-up wire harness). The data acquisition tool receives a low-voltage power supply instruction, reduces the level of the wake-up wire harness through the interface module (i.e., reduces the wake-up wire harness from high level to low level), and controls the low-voltage power supply circuit in response to the reduction of the level of the wake-up wire harness to supply low-voltage power to the whole vehicle.

[0092] In some embodiments, please refer to Figure 2 , Figure 8 and Figure 10 The low-voltage power supply circuit includes a low-voltage power supply controller and an internal contactor,03433: in response to the reduction of the level of the wake-up wire harness, the low-voltage power supply circuit is controlled to be turned on to supply low-voltage power to the whole vehicle, including:

[0093] 034331: in response to the wake-up harness being reduced from high level to low level, control the internal contactor to be attracted;

[0094] 034333: in the case that the internal contactor is attracted, the low-voltage power supply of the target vehicle is used to supply low-voltage power to the whole vehicle.

[0095] The control method of the vehicle power supply system can be applied to the control device 10 of the vehicle power supply system, and the control module 11 is used to control the internal contactor to be attracted in response to the wake-up harness being reduced from high level to low level; in the case that the internal contactor is attracted, the low-voltage power supply of the target vehicle is used to supply low-voltage power to the whole vehicle.

[0096] Specifically, the low-voltage power supply controller is a kind of controller for controlling the internal contactor to be attracted and disconnected according to the level state of the wake-up harness, and the internal contactor can be a relay switch. The low-voltage power supply controller is responsible for managing the distribution and power supply state control of the low-voltage power supply, and the low-voltage power supply controller can receive the level signal from the wake-up harness and decide whether to start the whole vehicle low-voltage power supply according to the change of the level signal of the wake-up harness. The wake-up harness is a wire specially used to transmit the wake-up signal. The wake-up harness connects the low-voltage power supply controller and the interface module, and is used to trigger the wake-up of the vehicle power supply system and the whole vehicle low-voltage power supply through the high and low change of the level when the vehicle needs to be in the battery state detection.

[0097] In some embodiments, please refer to Figure 2 、 Figure 8 and Figure 11 , the vehicle power supply system further comprises a data acquisition tool and an interface module, the interface module comprises a harness connector or a diagnostic interface, and the vehicle power supply system comprises:

[0098] 03434: the data acquisition tool receives a low-voltage power supply instruction, reduces the level of the wake-up harness through the harness connector, the data acquisition tool is connected with a wireless communication gateway, and the low-voltage power supply circuit is connected through the harness connector and the wake-up harness; or,

[0099] 03435: the data acquisition tool receives a low-voltage power supply instruction, reduces the level of the wake-up harness through the diagnostic interface, the data acquisition tool is connected with a wireless communication gateway, and the low-voltage power supply circuit is connected through the diagnostic interface and the wake-up harness;

[0100] 03436: in response to the level of the wake-up harness being reduced, control the low-voltage power supply circuit to be turned on to supply low-voltage power to the whole vehicle.

[0101] The control method of the vehicle power supply system can be applied to the control device 10 of the vehicle power supply system. The control module 11 is configured to receive a low-voltage power supply instruction through a data acquisition tool, reduce the voltage level of the wake-up wire harness through a wire harness connector, connect the data acquisition tool to a wireless communication gateway, and connect the low-voltage power supply circuit through the wire harness connector and the wake-up wire harness; or receive a low-voltage power supply instruction through a data acquisition tool, reduce the voltage level of the wake-up wire harness through a diagnostic interface, connect the data acquisition tool to a wireless communication gateway, and connect the low-voltage power supply circuit through the diagnostic interface and the wake-up wire harness; in response to the reduction of the voltage level of the wake-up wire harness, control the low-voltage power supply circuit to be turned on to supply low-voltage power to the vehicle.

[0102] Specifically, the data acquisition tool is a peripheral tool responsible for receiving and analyzing low-voltage power supply instructions from the control unit. The interface module can be a vehicle diagnostic interface, or a wire harness connector (the wire harness connector can connect the low-voltage power supply circuit through a hard wire, and the wire harness connector can allow the data acquisition tool to directly connect the low-voltage power supply circuit through a hard wire without the vehicle diagnostic interface). The data acquisition tool is connected to the interface module. Taking the vehicle diagnostic interface as an example, the vehicle diagnostic interface has sixteen pins. Among the sixteen pins of the vehicle diagnostic interface, two pins are used to connect the CAN communication network, and three pins are respectively connected to the constant power supply, the power ground, and the communication ground of the vehicle. Therefore, the other pins of the vehicle diagnostic interface can be used for the control method provided by the present application (i.e., for connecting the wake-up wire harness). The data acquisition tool receives a low-voltage power supply instruction and reduces the voltage level of the wake-up wire harness through the interface module (i.e., reduces the wake-up wire harness from high voltage to low voltage). In response to the reduction of the voltage level of the wake-up wire harness, the low-voltage power supply circuit controls the low-voltage power supply of the target vehicle to supply low-voltage power to the vehicle.

[0103] In some embodiments, referring to Figure 2 , Figure 8 and Figure 12 , the vehicle power supply system includes a control device, a wireless communication gateway, and a low-voltage power supply circuit. The wireless communication gateway is connected to the control device and the low-voltage power supply circuit. The low-voltage power supply circuit includes a low-voltage power supply controller.035: Obtain the state of charge of the high-voltage power supply, including:

[0104] 0351: In the case of vehicle low-voltage power supply, the high-voltage power supply controller obtains the state of charge of the high-voltage power supply and sends it to the control device through the wireless communication gateway.

[0105] The control method of the vehicle power supply system can be applied to the control device 10 of the vehicle power supply system. The control module 11 is configured to receive a low-voltage power supply instruction through a data acquisition tool, reduce the voltage level of the wake-up wire harness through a wire harness connector, connect the data acquisition tool to a wireless communication gateway, and connect the low-voltage power supply circuit through the wire harness connector and the wake-up wire harness; or receive a low-voltage power supply instruction through a data acquisition tool, reduce the voltage level of the wake-up wire harness through a diagnostic interface, connect the data acquisition tool to a wireless communication gateway, and connect the low-voltage power supply circuit through the diagnostic interface and the wake-up wire harness; in response to the reduction of the voltage level of the wake-up wire harness, control the low-voltage power supply circuit to be turned on to supply low-voltage power to the vehicle.

[0106] It can be understood that, in the case of low-voltage power supply of the whole vehicle, the control module 11 can obtain the state of charge of the high-voltage power supply through the low-voltage power supply controller and send it to the control device through the wireless communication gateway.

[0107] In some embodiments, referring to Figure 2 、 Figure 8 and Figure 13 , the vehicle power supply system further comprises a data acquisition tool, and in the case of low-voltage power supply of the whole vehicle, the high-voltage power supply controller obtains the state of charge of the high-voltage power supply and sends it to the control device through the wireless communication gateway, including:

[0108] 03511: In the case of low-voltage power supply of the whole vehicle, the high-voltage power supply controller obtains the state of charge of the high-voltage power supply and transmits it to the data acquisition tool, and the data acquisition tool is connected to the wireless communication gateway.

[0109] 03513: The data acquisition tool sends the state of charge of the high-voltage power supply to the control device through the wireless communication gateway.

[0110] The control method of the vehicle power supply system described above can be applied to the control device 10 of the vehicle power supply system, and the control module 11 is configured to: in the case of low-voltage power supply of the whole vehicle, obtain the state of charge of the high-voltage power supply through the high-voltage power supply controller and transmit it to the data acquisition tool, and the data acquisition tool is connected to the wireless communication gateway; and send the state of charge of the high-voltage power supply to the control device through the wireless communication gateway through the data acquisition tool.

[0111] It can be understood that, in the case of low-voltage power supply of the whole vehicle, the control module 11 obtains the state of charge of the high-voltage power supply through the low-voltage power supply controller and sends it to the data acquisition tool, and the data acquisition tool receives the state of charge of the high-voltage power supply. The data acquisition tool sends the state of charge of the high-voltage power supply to the control device through the wireless communication gateway, so that the control device determines the wake-up time according to the state of charge of the high-voltage power supply, thereby avoiding the battery from being discharged due to frequent wake-up of the vehicle.

[0112] Further, the detection result of the state of charge of the high-voltage power supply is in the form of message data, which is uploaded to the CAN network by the battery manager. After the data acquisition tool detects that the CAN network has received the message data, the message data is packaged and transmitted back to the wireless communication gateway, and the wireless communication gateway transmits the data to the background control device through the network.

[0113] In some embodiments, referring to Figure 2 、 Figure 8 and Figure 14 , 03511: In the case of low-voltage power supply of the whole vehicle, the high-voltage power supply controller obtains the state of charge of the high-voltage power supply and transmits it to the data acquisition tool, including:

[0114] 035111: In the case of low-voltage power supply of the whole vehicle, the high-voltage power supply controller acquires the state of charge of the high-voltage power supply and sends it to the CAN communication network.

[0115] 035113: In the case of detection by the data acquisition tool of the state of charge of the high-voltage power supply on the CAN communication network, the data acquisition tool acquires the state of charge of the high-voltage power supply from the CAN communication network.

[0116] The control method of the vehicle power supply system can be applied to the control device 10 of the vehicle power supply system. The control module 11 is configured to: in the case of low-voltage power supply of the whole vehicle, acquire the state of charge of the high-voltage power supply through the high-voltage power supply controller and send it to the CAN communication network; and in the case of detection by the data acquisition tool of the state of charge of the high-voltage power supply on the CAN communication network, acquire the state of charge of the high-voltage power supply from the CAN communication network through the data acquisition tool.

[0117] Specifically, in the case of low-voltage power supply of the whole vehicle, the control module 11 acquires the state of charge of the high-voltage power supply through the low-voltage power supply controller and sends it to the data acquisition tool, which then receives the state of charge of the high-voltage power supply. In the case of detection by the data acquisition tool of the state of charge of the high-voltage power supply on the CAN communication network, the data acquisition tool acquires the state of charge of the high-voltage power supply from the CAN communication network, so that the control device can determine the wake-up time according to the state of charge of the high-voltage power supply, thereby avoiding the situation of battery depletion due to frequent wake-up of the vehicle.

[0118] In some embodiments, referring to Figure 2 , Figure 15 and Figure 16 , the vehicle power supply system further comprises a server, a control device, a wireless communication gateway, and a low-voltage power supply circuit, and the control method further comprises:

[0119] 01: The control device receives a low-voltage power supply instruction from the server and sends it to the wireless communication gateway;

[0120] 02: The wireless communication gateway determines the target vehicle according to the low-voltage power supply instruction and turns on the low-voltage power supply circuit of the target vehicle to supply low-voltage power to the whole vehicle.

[0121] The control method of the vehicle power supply system can be applied to the control device 10 of the vehicle power supply system. The control module 11 is configured to: receive a low-voltage power supply instruction from the server through the control device and send it to the wireless communication gateway; and determine the target vehicle according to the low-voltage power supply instruction through the wireless communication gateway and turn on the low-voltage power supply circuit of the target vehicle to supply low-voltage power to the whole vehicle.

[0122] Referring to Figure 15The vehicle power supply system comprises a control device, a wireless communication gateway and a low-voltage power supply circuit, the wireless communication gateway is connected to the control device and the low-voltage power supply circuit, the control device is a core decision unit of the vehicle power supply system, and the control device can execute a timing task and generate various control instructions, thereby ensuring the safety of the vehicle power supply system. The wireless communication gateway is a module used for undertaking functions such as protocol conversion, data routing, device management and safety control in the vehicle power supply system. The wireless communication gateway is used for receiving a low-voltage power supply instruction from the control device, determining a target vehicle according to vehicle frame number information in the low-voltage power supply instruction, and sending the low-voltage power supply instruction to the target vehicle. After the low-voltage power supply circuit of the target vehicle receives the low-voltage power supply instruction, the low-voltage power supply circuit of the target vehicle controls the low-voltage power supply of the whole vehicle.

[0123] In some embodiments, referring to Figure 2 , Figure 15 and Figure 17 , the vehicle power supply system further comprises a data acquisition tool and an interface module, 02: determining a target vehicle according to a low-voltage power supply instruction, and turning on a low-voltage power supply circuit of the target vehicle to supply low-voltage power to the whole vehicle, comprising:

[0124] 021: The data acquisition tool receives a low-voltage power supply instruction, reduces the level of a wake-up wire harness through the interface module, the data acquisition tool is connected to the wireless communication gateway, and the data acquisition tool is connected to the low-voltage power supply circuit through the interface module and the wake-up wire harness;

[0125] 023: In response to the reduction of the level of the wake-up wire harness, the low-voltage power supply circuit is controlled to be turned on to supply low-voltage power to the whole vehicle.

[0126] The control method of the vehicle power supply system can be applied to a control device 10 of the vehicle power supply system, and a control module 11 is used for: receiving a low-voltage power supply instruction through a data acquisition tool, reducing the level of a wake-up wire harness through an interface module, connecting the data acquisition tool to a wireless communication gateway, and connecting the data acquisition tool to a low-voltage power supply circuit through the interface module and the wake-up wire harness; and in response to the reduction of the level of the wake-up wire harness, controlling the low-voltage power supply circuit to be turned on to supply low-voltage power to the whole vehicle.

[0127] Specifically, the data acquisition tool is a peripheral tool responsible for receiving and analyzing low-voltage power supply instructions from the control unit. The interface module can be a vehicle diagnostic interface, or a wire harness connector (the wire harness connector can connect the low-voltage power supply circuit through a hard wire, and the wire harness connector can enable the data acquisition tool to directly connect the low-voltage power supply circuit through a hard wire without the vehicle diagnostic interface). The data acquisition tool is connected to the interface module. Taking the vehicle diagnostic interface as an example, the vehicle diagnostic interface has sixteen pins, among which two pins are used to connect the CAN network, and three pins are respectively connected to the constant power supply, the power ground, and the communication ground of the vehicle. Therefore, the other pins of the vehicle diagnostic interface can be used for the control method provided in the present application. The data acquisition tool receives the low-voltage power supply instruction, reduces the level of the wake-up wire harness through the interface module (reduces the wake-up wire harness from high level to low level), and the low-voltage power supply circuit responds to the level reduction of the wake-up wire harness to control the low-voltage power supply of the target vehicle to supply power to the entire vehicle.

[0128] In some embodiments, referring to Figure 2 , Figure 15 and Figure 18 , the vehicle power supply system further comprises a base station, a satellite, and a satellite transceiver device, 01: the control device receives the low-voltage power supply instruction from the server, comprising:

[0129] 011: the base station receives the low-voltage power supply instruction from the server and sends the low-voltage power supply instruction to the satellite;

[0130] 013: the satellite receives the low-voltage power supply instruction and sends it to the control device through the satellite transceiver device.

[0131] The control method of the vehicle power supply system described above can be applied to the control device 10 of the vehicle power supply system, and the control module 11 is used to receive the low-voltage power supply instruction from the server through the base station, and send the low-voltage power supply instruction to the satellite; receive the low-voltage power supply instruction through the satellite, and send it to the control device through the satellite transceiver device.

[0132] Specifically, the control module 11 is used to receive the low-voltage power supply instruction from the server through the base station, and send the low-voltage power supply instruction to the satellite. Then receive the low-voltage power supply instruction through the satellite, and send it to the control device through the satellite transceiver device. This embodiment enables the operator to directly issue a command to start the low-voltage power supply of the target vehicle through the server, so as to further avoid the phenomenon of battery thermal runaway of the vehicle during transportation by manually sending the low-voltage power supply instruction when the battery state detection frequency of the vehicle is low (i.e., the frequency of the low-voltage power supply of the entire vehicle is low).

[0133] In conclusion, the application provides a control method of a vehicle power supply system. Since the low-voltage power supply opening time is multiple and is arranged at intervals, the low-voltage power supply needs to supply power to the whole vehicle at what time can be determined according to the low-voltage power supply opening time, and the interval length between the start time of the adjacent two whole vehicle low-voltage power supply, so as to realize the timing start of the whole vehicle low-voltage power supply, and further avoid the problem of power shortage of the vehicle power supply due to long time maintaining the whole vehicle low-voltage power supply in the long distance transportation process.

[0134] In some embodiments, referring to Figure 19 The application also provides an electronic device 30, which comprises a memory configured to store a computer program and a processor. When the processor executes the computer program, the control method in any of the above embodiments is realized.

[0135] For example, when the processor of the electronic device 30 executes the computer program stored in the memory, the following control method is realized:

[0136] 03: Control the whole vehicle low-voltage power supply according to the low-voltage power supply opening time. The low-voltage power supply opening time is multiple and is arranged at intervals. The low-voltage power supply opening time is the start time of the low-voltage power supply for the whole vehicle low-voltage power supply each time.

[0137] For another example, when the processor of the electronic device 30 executes the computer program stored in the memory, the following control method is realized:

[0138] 031: Control the low-voltage power supply to supply power to the whole vehicle according to the preset time. The preset time is the start time of the low-voltage power supply for the whole vehicle low-voltage power supply for the first time.

[0139] 032: Obtain the state information of the high-voltage power supply, and determine the wake-up time according to the state information of the high-voltage power supply. The wake-up time is the start time of the low-voltage power supply for the next whole vehicle low-voltage power supply.

[0140] 033: Control the low-voltage power supply to supply power to the whole vehicle according to the wake-up time.

[0141] For another example, when the processor of the electronic device 30 executes the computer program stored in the memory, the control method in 01, 011, 013, 02, 021, 023, 034, 0341, 0343, 03431, 03432, 03433, 034331, 034333, 03434, 03435, 03436, 035, 0351, 03511, 035111, 035113, 03513 and 036 can also be realized.

[0142] In some embodiments, referring to Figure 19The application also provides a vehicle 100 comprising the control device 10 of the vehicle power supply system in any of the above embodiments or the electronic device 30 in any of the above embodiments.

[0143] In some embodiments, the application also provides a computer program product 200 having a computer program 202 stored thereon, which, when executed by a processor, implements the control method in any of the above embodiments.

[0144] Please refer to Figure 20 In some embodiments, the application also provides a computer program product 200 having a computer program 202 stored thereon, which, when executed by a processor, implements the control method in any of the above embodiments.

[0145] For example, when the computer program 202 is executed by the processor 20, the following control method is implemented:

[0146] 03: controlling the low-voltage power supply of the vehicle according to the low-voltage power supply start time, the low-voltage power supply start time being a plurality of intervals, and the low-voltage power supply start time being the start time of the low-voltage power supply of the vehicle each time.

[0147] For another example, when the computer program 202 is executed by the processor 20, the following control method is implemented:

[0148] 031: controlling the low-voltage power supply of the vehicle according to the preset time, the preset time being the start time of the low-voltage power supply of the vehicle for the first time;

[0149] 032: obtaining the state information of the high-voltage power supply, and determining the wake-up time according to the state information of the high-voltage power supply, the wake-up time being the start time of the low-voltage power supply of the vehicle for the next time;

[0150] 033: controlling the low-voltage power supply of the vehicle according to the wake-up time.

[0151] For another example, when the computer program 202 is executed by the processor 20, the control methods in 01, 011, 013, 02, 021, 023, 034, 0341, 0343, 03431, 03432, 03433, 034331, 034333, 03434, 03435, 03436, 035, 0351, 03511, 035111, 035113, 03513 and 036 can also be implemented.

[0152] In the computer program product 200 in the present application, since the number of low-voltage power supply on time is multiple and is arranged at intervals, the low-voltage power supply needs to supply power to the whole vehicle at what time can be determined according to the low-voltage power supply on time, and the interval length between the start time of the adjacent two whole vehicle low-voltage power supply, so as to realize the timing start of the whole vehicle low-voltage power supply, and further avoid the problem of power shortage of the vehicle power supply due to long time maintaining the whole vehicle low-voltage power supply in the long distance transportation process of the vehicle.

[0153] In the description of the present specification, the description referring to the terms "certain embodiments", "in one example", "exemplarily" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0154] Any process or method descriptions in flow charts or described elsewhere herein can be understood as representing code modules, segments, or portions of code which include one or more executable instructions for performing specific logic functions or steps in the process. The various embodiments of the application can include additional or fewer steps or processes in addition to or other than those of the specific embodiments described herein, and the order of the steps can be changed from the order described.

[0155] Although the embodiments of the present application have been shown and described above, it should be understood that the above-described embodiments are exemplary, and should not be construed as limiting the present application, and those of ordinary skill in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A control method for a vehicle power supply system, characterized in that, include: The low-voltage power supply to the vehicle is controlled according to the low-voltage power supply turn-on time. The low-voltage power supply supplies power to low-voltage electrical equipment. The low-voltage power supply turn-on time is set at multiple intervals. The low-voltage power supply turn-on time is the start time of each time the low-voltage power supply supplies low-voltage power to the vehicle. When the vehicle is supplied with low-voltage power, the low-voltage electrical equipment is used to detect the vehicle's power status. The low-voltage power supply is charged by the high-voltage power supply. The low-voltage power supply activation time includes a preset time and a wake-up time. Controlling the vehicle's low-voltage power supply according to the low-voltage power supply activation time includes: According to a preset time, the low-voltage power supply is controlled to provide low-voltage power to the whole vehicle for the first time. The preset time is the start time when the low-voltage power supply first provides low-voltage power to the whole vehicle. The state of charge of the high-voltage power supply is obtained, and the wake-up time is determined based on the state of charge of the high-voltage power supply. The wake-up time is the start time of the next low-voltage power supply to the vehicle. Based on the wake-up time, the low-voltage power supply is controlled to provide low-voltage power to the entire vehicle.

2. The control method according to claim 1, characterized in that, The wake-up time is negatively correlated with the state of charge of the high-voltage power supply.

3. The control method according to claim 1, characterized in that, The vehicle power supply system includes a control device, a wireless communication gateway, and a low-voltage power supply circuit. The step of controlling the low-voltage power supply to provide low-voltage power to the entire vehicle according to a preset time includes: The control device responds when the current time equals the preset time by sending a low-voltage power supply command to the wireless communication gateway; The wireless communication gateway determines the target vehicle based on the low-voltage power supply command, and supplies low-voltage power to the entire vehicle by controlling the low-voltage power supply circuit of the target vehicle to be turned on.

4. The control method according to claim 3, characterized in that, The low-voltage power supply command includes vehicle identification number (VIN) information. The wireless communication gateway determines the target vehicle based on the low-voltage power supply command, including: The wireless communication gateway determines the target vehicle based on the vehicle identification number (VIN) information.

5. The control method according to claim 3, characterized in that, The vehicle power supply system also includes data acquisition tools and an interface module. The step of controlling the low-voltage power supply circuit of the target vehicle to provide low-voltage power to the entire vehicle includes: The data acquisition tool receives the low-voltage power supply command, reduces the level of the wake-up harness through the interface module, connects to the wireless communication gateway, and connects to the low-voltage power supply circuit through the interface module and the wake-up harness. In response to a decrease in the level of the wake-up harness, the low-voltage power supply circuit is turned on to provide low-voltage power to the entire vehicle.

6. The control method according to claim 5, characterized in that, The low-voltage power supply circuit includes a low-voltage power controller and an internal contactor. The low-voltage power supply circuit is controlled to conduct in response to a decrease in the level of the wake-up harness, providing low-voltage power to the entire vehicle. This includes: In response to the wake-up harness decreasing from a high level to a low level, the internal contactor is controlled to engage. When the internal contactor is engaged, the low-voltage power supply of the target vehicle is used to supply low-voltage power to the entire vehicle.

7. The control method according to claim 3, characterized in that, The vehicle power supply system also includes data acquisition tools and an interface module. The interface module includes wiring harness connectors or diagnostic interfaces. The process of controlling the low-voltage power supply circuit of the target vehicle to provide low-voltage power to the entire vehicle includes: The data acquisition tool receives the low-voltage power supply command, reduces the level of the wake-up harness through the wiring harness connector, connects to the wireless communication gateway, and connects to the low-voltage power supply circuit through the wiring harness connector and the wake-up harness; or... The data acquisition tool receives the low-voltage power supply command, reduces the level of the wake-up harness through the diagnostic interface, the data acquisition tool is connected to the wireless communication gateway, and is connected to the low-voltage power supply circuit through the diagnostic interface and the wake-up harness; In response to a decrease in the level of the wake-up harness, the low-voltage power supply circuit is turned on to provide low-voltage power to the entire vehicle.

8. The control method according to claim 1, characterized in that, The vehicle power supply system includes control equipment and a wireless communication gateway. The step of acquiring the state of charge of the high-voltage power supply includes: When the vehicle is powered by low voltage, the high voltage power controller acquires the state of charge of the high voltage power supply and sends it to the control device through the wireless communication gateway.

9. The control method according to claim 8, characterized in that, The vehicle power supply system also includes a data acquisition tool. In the case of low-voltage power supply to the entire vehicle, the high-voltage power controller acquires the state of charge of the high-voltage power supply and transmits it to the control device via the wireless communication gateway, including: In the case of low-voltage power supply for the whole vehicle, the high-voltage power controller acquires the state of charge of the high-voltage power supply and transmits it to the data acquisition tool, which is connected to the wireless communication gateway. The data acquisition tool transmits the state of charge of the high-voltage power supply to the control device through the wireless communication gateway.

10. The control method according to claim 9, characterized in that, In the case of low-voltage power supply to the vehicle, the high-voltage power controller acquires the state of charge of the high-voltage power supply and transmits it to the data acquisition tool, including: When the vehicle is powered by low voltage, the high voltage power controller acquires the state of charge of the high voltage power supply and sends it to the CAN communication network. When the data acquisition tool detects the state of charge of the high-voltage power supply on the CAN communication network, the data acquisition tool acquires the state of charge of the high-voltage power supply from the CAN communication network.

11. The control method according to claim 1, characterized in that, The vehicle power supply system also includes a server, control equipment, a wireless communication gateway, and a low-voltage power supply circuit; the control method further includes: The control device receives a low-voltage power supply command from the server and sends the low-voltage power supply command to the wireless communication gateway. The wireless communication gateway determines the target vehicle based on the low-voltage power supply command, and supplies low-voltage power to the entire vehicle by controlling the low-voltage power supply circuit of the target vehicle to be turned on.

12. The control method according to claim 11, characterized in that, The vehicle power supply system also includes data acquisition tools and an interface module. The step of determining the target vehicle based on the low-voltage power supply command and controlling the low-voltage power supply circuit of the target vehicle to provide low-voltage power to the entire vehicle includes: The data acquisition tool receives the low-voltage power supply command, reduces the level of the wake-up harness through the interface module, connects to the wireless communication gateway, and connects to the low-voltage power supply circuit through the interface module and the wake-up harness. In response to a decrease in the level of the wake-up harness, the low-voltage power supply circuit is turned on to provide low-voltage power to the entire vehicle.

13. The control method according to claim 11, characterized in that, The vehicle power supply system also includes a base station, a satellite, and a satellite transceiver. The control device receives low-voltage power supply commands from the server, including: The base station receives a low-voltage power supply command from the server and sends the low-voltage power supply command to the satellite; The satellite receives the low-voltage power supply command and transmits it to the control device via the satellite transceiver.

14. A control device for a vehicle power supply system, characterized in that, The control device includes a control module; The control module is used to control the low-voltage power supply of the whole vehicle according to the low-voltage power supply turn-on time. The low-voltage power supply supplies power to low-voltage electrical equipment. The low-voltage power supply turn-on time is set at multiple intervals. The low-voltage power supply turn-on time is the start time of each time the low-voltage power supply supplies low-voltage power to the whole vehicle. When the whole vehicle is supplied with low-voltage power, the low-voltage electrical equipment is used to detect the vehicle power status. The low-voltage power supply is charged by the high-voltage power supply. The low-voltage power supply turn-on time includes a preset time and a wake-up time. The control module is also used for: According to a preset time, the low-voltage power supply is controlled to provide low-voltage power to the whole vehicle for the first time. The preset time is the start time when the low-voltage power supply first provides low-voltage power to the whole vehicle. The state of charge of the high-voltage power supply is obtained, and the wake-up time is determined based on the state of charge of the high-voltage power supply. The wake-up time is the start time of the next low-voltage power supply to the vehicle. Based on the wake-up time, the low-voltage power supply is controlled to provide low-voltage power to the entire vehicle.

15. An electronic device, characterized in that, The electronic device includes a memory and a processor, the memory being configured to store a computer program, and the processor, when executing the computer program, implementing the control method according to any one of claims 1-13.

16. A vehicle, characterized in that, It includes the control device for the vehicle power supply system as described in claim 14, or the electronic device as described in claim 15.

17. A computer program product having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the control method according to any one of claims 1-13.

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