Power supply system of vehicle, control method and device of power supply system, vehicle and medium

Abstract

The invention provides a power supply system of a vehicle, a control method and device of the power supply system, the vehicle and a medium, and the power supply system comprises area controllers which comprise a first area controller, a second area controller and a third area controller; the first area controller is connected with the first power source and the second area controller in series through first wires. The second area controller is connected in series with a second power supply through a first wire; the third area controller is respectively connected in series with the second power supply and the third power supply through first wires; a first balance switch is arranged on the first wire in each area controller, and each area controller is electrically connected with load equipment of the vehicle. According to the invention, the stability and robustness of the vehicle power supply system can be effectively improved, and the risk of functional abnormality caused by power failure of the whole vehicle in emergency is reduced.

Description

Technical Field

[0001] The present invention relates to the field of vehicle electrical technology, and in particular to a vehicle power supply system and a control method, device, vehicle, and medium thereof. Background Art

[0002] With the rapid growth of new energy vehicles and the development of intelligent driving technology, the demand for the performance and stability of vehicle power supply systems is also increasing.

[0003] The vehicle power supply system not only needs to supply power to basic load equipment such as lighting, air conditioning, and audio, but also needs to support more complex power management to cope with the power supply needs of various load equipment in various emergency situations.

[0004] In related technologies, the vehicle power supply system uses two power busbars to connect a high-voltage battery pack and a low-voltage small battery to power the entire vehicle. When the vehicle is involved in a collision accident, the line of one of the power supply groups may be damaged, and even due to current backflow and other phenomena, it may affect the normal operation of the other power supply group, causing the entire vehicle to lose power and malfunction. Moreover, for complex collision accidents, such as multiple collisions, front and rear collisions, etc., the risk of both power supply groups failing at the same time increases. Summary of the Invention

[0005] In view of the above problems, a vehicle power supply system and control method, device, vehicle, and medium are proposed to overcome or at least partially solve the above problems, including: A power supply system for a vehicle, the power supply system comprising: The regional controllers include a first regional controller, a second regional controller, and a third regional controller; The first regional controller is connected in series with the first power supply and the second regional controller via a first wire; The second zone controller is connected in series with the second power supply via the first conductor; The third regional controller is connected in series with the second power supply and the third power supply through the first wire respectively; A first balancing switch is provided on the first conductive line in each zone controller, and each zone controller is electrically connected to the load device of the vehicle.

[0006] Optionally, a second balancing switch is provided on the first wire in the second power supply.

[0007] Optionally, each area controller is further provided with a first combiner and a second combiner, the first balancing switch is electrically connected to the first combiner and the second combiner respectively, the first combiner and the second combiner are electrically connected to each other and form a combining circuit, and the combining circuit is electrically connected to the load device.

[0008] Optionally, two field effect transistors electrically connected with opposite polarities are provided in the first balancing switch and / or the second balancing switch.

[0009] Optionally, the first zone controller is arranged in the front cabin of the vehicle, the third zone controller is arranged in the rear cabin of the vehicle, and the second zone controller is arranged between the first zone controller and the third zone controller.

[0010] Optionally, the first power supply is electrically connected to the first regional controller via a DC-DC converter, and / or the third power supply is electrically connected to the third regional controller via a DC-DC converter.

[0011] A method for controlling a vehicle power supply system is applied to the above power supply system, the method comprising: In the event that a target power source fails, determining a target zone controller associated with the target power source in the zone controller; wherein the target power source includes one or more of the first power source, the second power source, and the third power source; The first balancing switch in the target area controller is controlled to disconnect the current path with the target power supply.

[0012] A control device for a vehicle power supply system, applied to the above power supply system, comprises: a target zone controller determination module, configured to determine, in the zone controller, a target zone controller associated with the target power supply when a target power supply fails; wherein the target power supply includes one or more of the first power supply, the second power supply, and the third power supply; The control module is used to control the first balancing switch in the target area controller to disconnect the current path with the target power supply.

[0013] A vehicle comprises the above power supply system.

[0014] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the above-mentioned method for controlling a power supply system of a vehicle.

[0015] The embodiment of the present invention has the following advantages: the first power supply, the second power supply, the third power supply and the first regional controller, the second regional controller and the third regional controller are connected in series via a first wire, and each regional controller supplies power to the load equipment of the vehicle, effectively reducing the wiring cost of the power supply system and simplifying the circuit design; moreover, in combination with the balancing switch in each regional controller, the path between the power supply and the faulty power supply can be promptly disconnected to achieve isolation of the faulty power supply, ensuring that it does not affect other normal power supplies or regional controllers, thereby improving the stability and robustness of the power supply system and reducing the risk of functional abnormalities caused by power failure of the entire vehicle in the event of an emergency; furthermore, the power supplies electrically connected to each regional controller can form a dual backup, and even if a serious collision accident causes two groups of power supplies to fail, the load equipment can still be powered by the other group of normally functioning power supplies without being affected by the faulty power supply, further reducing the risk of complete power failure of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the description of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic structural diagram of a power supply system provided by one embodiment of the present invention; Figure 2 is a structural diagram of another power supply system provided by an embodiment of the present invention; Figure 3 This is a flowchart of a method for controlling a vehicle power supply system according to an embodiment of the present invention; Figure 4 This is a circuit structure diagram of a power supply system provided by one embodiment of the present invention; Figure 5 This is a balancing switch control flow chart provided by one embodiment of the present invention; Figure 6 This is a structural block diagram of a control device for a vehicle power supply system provided by one embodiment of the present invention. DETAILED DESCRIPTION

[0018] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0019] Reference Figure 1 , which shows a schematic structural diagram of a vehicle power supply system provided by an embodiment of the present invention, and may specifically include: The regional controllers include a first regional controller, a second regional controller, and a third regional controller; The first regional controller is connected in series with the first power supply and the second regional controller via a first wire; The second zone controller is connected in series with the second power supply via the first conductor; The third regional controller is connected in series with the second power supply and the third power supply through the first wire respectively; A first balancing switch is provided on the first conductive line in each zone controller, and each zone controller is electrically connected to the load device of the vehicle.

[0020] A zone controller, also known as a zone control unit (ZCU), is an electronic control unit located in a specific area of ​​the vehicle. It manages the electrical loads, sensors, actuators, and network communications within that area. It communicates with the central computing unit via a high-speed in-vehicle network (such as Ethernet or CAN FD) to coordinate the entire vehicle's electronic systems. The first, second, and third zone controllers can be located in different locations within the vehicle.

[0021] The first power supply can be a low-voltage power supply (12 / 48V) or a small-capacity power supply, such as a small vehicle-mounted battery, which is used to start the vehicle and power low-voltage electronic equipment on board (such as lighting and audio); it can also be a high-voltage power supply or a large-capacity power supply, such as a vehicle-mounted battery pack, which is used to power the electric vehicle and drive the motor; the second power supply is a small vehicle-mounted battery, which serves as a backup power supply; the third power supply can be a high-voltage power supply or a large-capacity power supply, such as a vehicle-mounted battery pack.

[0022] The first conductor serves as the busbar of the overall power supply system circuit, collecting and distributing electrical energy to various devices. In practical applications, a conductor with strong current carrying capacity and good insulation performance can be used as the first conductor.

[0023] A balancing switch is an electronic component used to control the working state of a switching unit, such as the disconnection and closing of a current path, while also maintaining signal balance.

[0024] Load equipment refers to equipment in the vehicle that requires power supply. For example, it can be conventional load equipment such as the power system (such as electric motors), electrical systems (such as headlights, audio, air conditioning, etc.), or redundant load equipment such as backup batteries and backup braking systems.

[0025] In some embodiments of the present invention, the load devices electrically connected to the first zone controller, the second zone controller, and the third zone controller may be the same or different, or may be partially the same.

[0026] In practical applications, a first wire is used to bridge the power input and output terminals inside each zone controller, so that each zone controller is connected to the power input of at least two power supplies. For example, when the second power supply as a backup power supply does not work, the first zone controller, the second zone controller, and the third zone controller are respectively connected to the first power supply and the third power supply through the first wire, and each supplies power to the load equipment in the vehicle, thereby achieving load balancing and redundancy design of power supply. When any power source fails or malfunctions, each regional controller can isolate the power source by controlling its internal first balancing switch to disconnect the current path from the failed power source, ensuring that the failed or malfunctioning power source does not affect other load devices, regional controllers, or power sources. For example, when the first power source fails, the first balancing switch in the first regional controller is controlled to disconnect the current path from the first power source, and the vehicle's load devices can still be powered by the third power source connected to the third regional controller; when the third power source fails, the first balancing switch in the third regional controller is controlled to disconnect the current path from the third power source, and the vehicle's load devices can still be powered by the first power source connected to the first regional controller; when both the first and third power sources fail, the first balancing switch in the first regional controller is controlled to disconnect the current path from the first power source, and the first balancing switch in the third regional controller is controlled to disconnect the current path from the third power source, and the vehicle's load devices can still be powered by the second power source connected to the second regional controller.

[0027] In this way, by connecting each power supply and regional controller in series in sequence through the first wire, and designing a balancing switch on the first wire in each regional controller, not only can wiring costs be saved, but the stability and robustness of the vehicle's power supply system can also be effectively improved, reducing the risk of power outage of the entire vehicle in the event of an emergency.

[0028] In some embodiments of the present invention, a second balancing switch is provided on the first conductive line in the second power supply.

[0029] In this embodiment, the second power supply can be used as a backup power supply, and the second balancing switch is used to control whether the second power supply is working.

[0030] Specifically, when the power supply system is operating normally, the second balancing switch is controlled to disconnect the current path of the first conductor in the second power supply, the second power supply is not operating, the first regional controller and the second regional controller are powered by the first power supply to the load equipment of the vehicle, and the third regional controller is powered by the third power supply to the load equipment of the vehicle; When the power level of the first power supply and the third power supply is low, the second balancing switch is controlled to connect the current path of the first wire in the second power supply, the second power supply is turned on, and the first, second, and third regional controllers can simultaneously use the first, second, and third power supplies to supply power to the vehicle's load equipment. When both the first power supply and the third power supply fail, the first balancing switch in the first zone controller is controlled to disconnect the current path with the first power supply, and the first balancing switch in the third zone controller is controlled to disconnect the current path with the third power supply. At this time, the second balancing switch is controlled to connect the current path of the first wire in the second power supply. The second power supply resumes operation, and the vehicle's load equipment can be powered by the second power supply connected to the second zone controller.

[0031] In some embodiments of the present invention, two field effect transistors electrically connected with opposite polarities are provided in the first balancing switch and / or the second balancing switch. In this embodiment, the two field-effect transistors may be of the same type, such as a metal-oxide-semiconductor (MOS) field-effect transistor, which has a three-terminal structure consisting of a drain (electrode for current output), a source (electrode for current input), and a gate. The conductivity of the conductive channel in the semiconductor is controlled by the gate voltage, thereby achieving a switching or amplification function. Specifically, when a voltage is applied to the gate, a conductive channel is formed on the semiconductor surface below the oxide. The formation of the conductive channel allows current to flow between the source and drain electrodes, and the conductivity of the channel can be controlled by adjusting the gate voltage.

[0032] Electrically connected with opposite polarity means that the electrodes of the two field-effect transistors are connected in opposite directions, such as source to source or drain to drain, so that the current can be blocked in both directions within the balanced switch. When both field-effect transistors are turned on, the current can flow in both directions; when one field-effect transistor is turned on, the current can flow in one direction, thus achieving the disconnection and connection of the control current path.

[0033] In this embodiment, by using two field effect transistors electrically connected with opposite polarities, conduction balance, anti-reverse connection, short-circuit protection and the like can be achieved. It can also provide higher current control accuracy and flexibility, and can effectively prevent reverse current or leakage current, thereby improving the reliability of the power supply system.

[0034] In practical applications, each field-effect transistor can also be connected to a pre-driver chip, or form an integrated circuit with the pre-driver chip. Through the design of two pre-driver chips and two field-effect transistors, it is possible to quickly control the on and off of the field-effect transistor and timely disconnect or conduct the current path.

[0035] In some embodiments, each regional controller can also draw power from a wire connected between two field-effect transistors to distribute power to secondary loads (i.e., low-voltage, less critical loads). For example, in a 48V low-voltage power system, the regional controller can draw power from between the two MOSFETs in the first balancing switch and then use a 48V to 12V DC / DC converter to distribute power to 12V secondary loads.

[0036] In some embodiments of the present invention, each regional controller is further provided with a first combiner and a second combiner, the first balancing switch is electrically connected to the first combiner and the second combiner respectively, the first combiner and the second combiner are electrically connected to each other and form a combining circuit, and the combining circuit is electrically connected to the load device.

[0037] The first combiner and the second combiner may be combiners with the same structure. A combiner is a device used to combine multiple input signals or power supplies into a single output.

[0038] As an example, Figure 2 As shown, ZCU_F is the first zone controller, ZCU_FR is the second zone controller, ZCU_R is the third zone controller, combiner A is the first combiner, combiner B is the second combiner, the first power supply can be a battery pack or a small battery through the output of a DC / DC converter, the second power supply can be a small battery as a backup power supply, and the third power supply can be another battery pack through the output of a DC / DC converter; AMC1 and AMC2 are automotive motor controllers (Automotive Motor Controller); The first balancing switch in each zone controller is electrically connected to the combiner A and combiner B respectively. The combiner A and combiner B are electrically connected to form a combiner circuit to electrically connect the vehicle's load equipment; among them, ZCU_F supplies power to redundant load equipment and conventional load equipment, ZCU_FR supplies power to redundant load equipment, and ZCU_R supplies power to redundant load equipment and conventional load equipment.

[0039] In practical applications, taking ZCU_F as an example, the current generated by the first power supply passes through the first combiner in ZCU_F, and the current generated by the second power supply and / or the third power supply passes through the second combiner in ZCU_F, and is combined in a combining circuit formed by the electrical connection of the first combiner and the second combiner. The combining circuit can provide a larger total output current to power the load equipment connected to ZCU_F; moreover, the first combiner and the second combiner can also evenly distribute the load to each power supply to avoid overload of a single power supply and extend the life of the power supply.

[0040] Furthermore, if the power source connected to either end of the ZCU_F's first balancing switch fails, the remaining functioning power source can still power the connected load device via the combined circuit. For example, assuming the first, second, and third power sources are all functioning normally, if the first power source fails, the ZCU_F controls the first balancing switch to disconnect the current path from the first power source. At this point, the second and third power sources can still power the connected load device via the combined circuit, preventing load malfunctions caused by power loss and effectively improving the robustness of the onboard power supply system.

[0041] In some embodiments of the present invention, the first zone controller is disposed in the front cabin of the vehicle, the third zone controller is disposed in the rear cabin of the vehicle, and the second zone controller is disposed between the first zone controller and the third zone controller.

[0042] In this embodiment, powering the load devices through regional controllers at different locations can effectively deal with power outages of the load devices caused by a collision, reduce the risk of power outages of the entire vehicle, and further improve the robustness of the power supply system.

[0043] As an example, when a collision occurs in the front cabin of the vehicle, the first power supply fails and the first balancing switch in the first area controller is controlled to disconnect the current path with the first power supply. At this time, the vehicle's load equipment can still be powered by the third power supply connected to the third area controller; when a collision occurs in the rear cabin of the vehicle, the third power supply fails and the first balancing switch in the third area controller is controlled to disconnect the current path with the third power supply. At this time, the vehicle's load equipment can still be powered by the first power supply connected to the first area controller; when the vehicle is sandwiched and collided by vehicles in front and behind, both the first power supply and the third power supply fail and the first balancing switch in the first area controller is controlled to disconnect the current path with the first power supply, and the first balancing switch in the third area controller is controlled to disconnect the current path with the third power supply. At this time, the vehicle's load equipment can still be powered by the second power supply connected to the second area controller.

[0044] In some embodiments of the present invention, the first power supply is electrically connected to the first zone controller via a DC-DC converter, and / or the third power supply is electrically connected to the third zone controller via a DC-DC converter.

[0045] In this embodiment, the first and / or third power supplies are first electrically connected to a DC-to-DC converter (DC / DC converter). The DC / DC converter processes the current output by the first and / or third power supplies before connecting them to other components. The DC / DC converter can perform voltage conversion, improve power efficiency, and achieve electrical isolation, allowing the first and / or third power supplies to adapt to different loads.

[0046] Reference Figure 3 , which shows a flowchart of a method for controlling a vehicle power supply system according to an embodiment of the present invention, and is applied to the above power supply system, specifically includes the following steps: Step 301: When a target power source fails, determine a target regional controller associated with the target power source in the regional controller; wherein the target power source includes one or more of the first power source, the second power source, and the third power source; Step 302: Control the first balancing switch in the target area controller to disconnect the current path with the target power supply.

[0047] In this embodiment, each regional controller can control the first balancing switch inside it to disconnect the current path between the target power supply and the faulty power supply to isolate the target power supply and ensure that the target power supply does not affect other load devices, regional controllers or power supplies.

[0048] For example, when the first power supply fails, the target regional controller associated with the first power supply is determined to be the first regional controller, and the first balancing switch in the first regional controller is controlled to disconnect the current path with the first power supply. At this time, the load equipment of the vehicle can still be powered by the third power supply connected to the third regional controller; When the third power supply fails, the target regional controller associated with the third power supply is determined to be the third regional controller, and the first balancing switch in the third regional controller is controlled to disconnect the current path to the third power supply. At this time, the load equipment of the vehicle can still be powered by the first power supply connected to the first regional controller; When both the first power supply and the third power supply fail, the target area controllers associated with the first power supply and the third power supply are determined to be the first area controller and the third area controller, and the first balancing switch in the first area controller is controlled to disconnect the current path with the first power supply, and the first balancing switch in the third area controller is controlled to disconnect the current path with the third power supply. At this time, the vehicle's load equipment can still be powered by the second power supply connected to the second area controller.

[0049] Specifically, if Figure 4 As shown in the figure, VBAT / DCDC represents the first power supply, DCDC represents the third power supply; the first regional controller, the second regional controller, the third regional controller and the second power supply are all provided with a balancing switch, and the balancing switch is provided with MOS transistors 1 and MOS transistors 2 connected with opposite polarities; V represents the current transmitted on the first wire, V1, V2, V3, and V4 are branches of V; Efuse is a fuse; Taking the first regional controller as an example, the MOS transistor 1 inside it controls the on / off of the current path between the balancing switch and the first power supply, and the MOS transistor 2 controls the on / off of the current path between the balancing switch and the second power supply and / or the third power supply; In MOS transistor 1, P represents the positive terminal of the sampling resistor, and N represents the negative terminal of the sampling resistor, which is used to detect the current in the circuit. G represents the pin used to control the conduction of MOS transistor A. OUT represents the power output terminal; and VS represents the power input terminal. The circuit structure of MOS transistor 2 is similar to that of MOS transistor 2 and will not be repeated here.

[0050] like Figure 5 As shown, VA is the second power supply and / or the third power supply, and VB is the first power supply. Under normal conditions, MOS transistors 1 and 2 are turned on, and in the first regional controller, the circuit between VA, the balancing switch, and VB is normally conducted. When a short circuit to ground of VA is detected through the sampling resistor, that is, a fault occurs in VA, MOS transistor 1 is turned off by controlling the G pin in MOS transistor 1 in the first regional controller, thereby disconnecting the current path between the balancing switch and VB, thereby protecting VB. When a short circuit to ground of VB is detected through the sampling resistor, that is, a fault occurs in VB, MOS transistor 2 is turned off by controlling the G pin in MOS transistor 2 in the first regional controller, thereby disconnecting the current path between the balancing switch and VA, thereby protecting VA.

[0051] The embodiment of the present invention has the following advantages: the first power supply, the second power supply, the third power supply and the first regional controller, the second regional controller and the third regional controller are connected in series via a first wire, and each regional controller supplies power to the load equipment of the vehicle, effectively reducing the wiring cost of the power supply system and simplifying the circuit design; moreover, in combination with the balancing switch in each regional controller, the path between the power supply and the faulty power supply can be promptly disconnected to achieve isolation of the faulty power supply, ensuring that it does not affect other normal power supplies or regional controllers, thereby improving the stability and robustness of the power supply system and reducing the risk of functional abnormalities caused by power failure of the entire vehicle in the event of an emergency; furthermore, the power supplies electrically connected to each regional controller can form a dual backup, and even if a serious collision accident causes two groups of power supplies to fail, the load equipment can still be powered by the other group of normally functioning power supplies without being affected by the faulty power supply, further reducing the risk of complete power failure of the vehicle.

[0052] It should be noted that for the sake of simplicity, the method embodiments are described as a series of actions. However, those skilled in the art should be aware that the embodiments of the present invention are not limited by the order of the actions described, because according to the embodiments of the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0053] Reference Figure 6 , shows a schematic structural diagram of a control device for a vehicle power supply system provided by an embodiment of the present invention, which may specifically include the following modules: a target zone controller determining module 601, configured to determine, in the zone controller, a target zone controller associated with the target power supply when a target power supply fails; wherein the target power supply includes one or more of the first power supply, the second power supply, and the third power supply; The control module 602 is configured to control the first balancing switch in the target area controller to disconnect the current path from the target power supply.

[0054] Some embodiments of the present invention further provide a vehicle comprising the above power supply system.

[0055] Some embodiments of the present invention also provide an electronic device, which may include a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, the control method of the power supply system of the vehicle as described above is implemented.

[0056] Some embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the control method of the power supply system of the vehicle as described above is implemented.

[0057] Some embodiments of the present invention further provide a computer program product, including a computer program, which implements the above-mentioned method for controlling the power supply system of a vehicle when executed by a processor.

[0058] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0059] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of relevant countries and regions, and provide corresponding operation entrances for users to choose to authorize or refuse.

[0060] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0061] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, apparatus, or computer program products. Thus, embodiments of the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0062] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0063] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0064] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0065] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they become aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0066] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or terminal device. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of additional identical elements in the process, method, article, or terminal device that includes the above elements.

[0067] The above provides a vehicle power supply system and its control method, device, vehicle, medium , and a detailed introduction is given. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A vehicle power supply system, characterized in that: The power supply system includes: The regional controllers include a first regional controller, a second regional controller, and a third regional controller; The first regional controller is connected in series with the first power supply and the second regional controller via a first wire; The second zone controller is connected in series with the second power supply via the first conductor; The third regional controller is connected in series with the second power supply and the third power supply through the first wire respectively; A first balancing switch is provided on the first conductive line in each zone controller, and each zone controller is electrically connected to the load device of the vehicle.

2. The power supply system according to claim 1, characterized in that: A second balancing switch is provided on the first conductive line in the second power supply.

3. The power supply system according to claim 1, wherein: Each regional controller is also provided with a first combiner and a second combiner. The first balancing switch is electrically connected to the first combiner and the second combiner respectively. The first combiner and the second combiner are electrically connected to each other and form a combining circuit. The combining circuit is electrically connected to the load device.

4. The power supply system according to claim 2, characterized in that: Two field effect transistors electrically connected with opposite polarities are provided in the first balancing switch and / or the second balancing switch.

5. The power supply system according to claim 1, wherein: The first zone controller is disposed in a front cabin of the vehicle, the third zone controller is disposed in a rear cabin of the vehicle, and the second zone controller is disposed between the first zone controller and the third zone controller.

6. The power supply system according to claim 1, characterized in that: The first power supply is electrically connected to the first regional controller via a DC-DC converter, and / or the third power supply is electrically connected to the third regional controller via a DC-DC converter.

7. A method for controlling a vehicle power supply system, characterized in that: Applied to the power supply system according to any one of claims 1 to 6, the method comprises: In the event that a target power source fails, determining a target zone controller associated with the target power source in the zone controller; wherein the target power source includes one or more of the first power source, the second power source, and the third power source; The first balancing switch in the target area controller is controlled to disconnect the current path with the target power supply.

8. A control device for a vehicle power supply system, characterized in that: Applied to the power supply system according to any one of claims 1 to 6, the device comprises: a target zone controller determination module, configured to determine, in the zone controller, a target zone controller associated with the target power supply when a target power supply fails; wherein the target power supply includes one or more of the first power supply, the second power supply, and the third power supply; The control module is used to control the first balancing switch in the target area controller to disconnect the current path with the target power supply.

9. A vehicle, characterized in that: A power supply system for a vehicle comprising the vehicle according to any one of claims 1 to 6.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method for controlling the power supply system of a vehicle according to claim 7 is implemented.

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