A power supply system of a vehicle, a control method, device, vehicle and medium thereof

Abstract

The application provides a power supply system of a vehicle, a control method and device thereof, the vehicle and a medium, and the power supply system comprises: area controllers, including a first area controller, a second area controller and a third area controller; the first area controller is connected in series with a first power supply and the second area controller through a first wire; the second area controller is connected in series with a second power supply through the first wire; the third area controller is connected in series with the second power supply and a third power supply through the first wire; a first balance switch is arranged on the first wire in each area controller, and each area controller is electrically connected with a load device of the vehicle. Through the application, the stability and robustness of the power supply system of the vehicle can be effectively improved, and the risk of function abnormality caused by power failure of the whole vehicle in a sudden situation can be reduced.

Description

Technical Field

[0001] This invention relates to the field of vehicle electrical technology, and in particular to vehicle power supply systems and their control methods, devices, vehicles, and media. Background Technology

[0002] With the rapid growth in the number 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 under various emergencies.

[0004] In related technologies, vehicle power supply systems use two power buses to connect a high-voltage battery pack and a low-voltage small battery to supply power to the entire vehicle. When a vehicle is involved in a collision, the circuit of one of the power supplies may be damaged, and even current backflow may affect the other power supply that is working normally, causing the entire vehicle to lose power and malfunction. Moreover, for complex collision accidents, such as multiple collisions or front and rear sandwich collisions, the risk of both power supplies failing at the same time increases. Summary of the Invention

[0005] In view of the above problems, a vehicle power supply system and its control method, apparatus, 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 area controller includes a first area controller, a second area controller, and a third area controller; The first area controller is connected in series with the first power supply and the second area controller via a first wire; The second area controller is connected in series with the second power supply via the first wire; The third area controller is connected in series with the second power supply and the third power supply respectively via the first wire; Each area controller has a first balance switch installed on its first wire, and each area controller is electrically connected to the load equipment of the vehicle.

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

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

[0008] Optionally, the first balance switch and / or the second balance switch may contain two field-effect transistors electrically connected with opposite polarities.

[0009] Optionally, the first area controller is located in the front compartment of the vehicle, the third area controller is located in the rear compartment of the vehicle, and the second area controller is located between the first area controller and the third area controller.

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

[0011] A control method for a vehicle's power supply system, applied to the aforementioned power supply system, the method comprising: In the event of a target power failure, a target area controller associated with the target power is identified in the area controller; wherein the target power includes one or more of the first power, the second power, and the third power. The first balance switch within the target area controller is controlled to disconnect the current path from the target power supply.

[0012] A control device for a vehicle's power supply system, applied to the power supply system described above, the device comprising: A target area controller determination module is used to determine, in the case of a target power supply failure, a target area controller associated with the target power supply in the area controller; 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 balance switch in the target area controller to disconnect the current path from the target power supply.

[0013] A vehicle comprising the power supply system described above.

[0014] A computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described control method for the power supply system of a vehicle.

[0015] The embodiments of the present invention have the following advantages: By connecting the first power supply, the second power supply, the third power supply, and the first area controller, the second area controller, and the third area controller in series with the first wire, each area controller supplies power to the vehicle's load equipment, effectively reducing the wiring cost of the power supply system and simplifying the circuit design; moreover, combined with the balance switch in each area controller, the path between the power supply and the faulty power supply can be disconnected in time, realizing the isolation of the faulty power supply and ensuring that it does not affect other normal power supplies or area controllers, improving the stability and robustness of the power supply system, and reducing the risk of vehicle power failure due to sudden situations; furthermore, the power supplies connected to each area controller can form a dual backup, so even if a serious collision accident causes two sets of power supplies to fail, the load equipment can still be powered by the other normally operating power supply without being affected by the faulty power supply, further reducing the risk of the vehicle losing power completely. Attached Figure Description

[0016] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a power supply system according to an embodiment of the present invention; Figure 2 This is a schematic diagram of another power supply system provided in an embodiment of the present invention; Figure 3 This is a flowchart of the steps of a control method for 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 in an embodiment of the present invention; Figure 5 This is a flowchart of a balance switch control provided in an embodiment of the present invention; Figure 6 This is a structural block diagram of a control device for a vehicle power supply system provided in an embodiment of the present invention. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] Reference Figure 1 The diagram illustrates a structural schematic of a vehicle power supply system according to an embodiment of the present invention, which may specifically include: The area controller includes a first area controller, a second area controller, and a third area controller; The first area controller is connected in series with the first power supply and the second area controller via a first wire; The second area controller is connected in series with the second power supply via the first wire; The third area controller is connected in series with the second power supply and the third power supply respectively via the first wire; Each area controller has a first balance switch installed on its first wire, and each area controller is electrically connected to the load equipment 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 ​​a 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 operation of the entire vehicle's electronic systems. The first, second, and third zone controllers can be located in different parts of the vehicle.

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

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

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

[0024] Load equipment refers to the equipment in a vehicle that requires a power supply. This can be conventional load equipment such as the power system (e.g., electric motor) and electrical system (e.g., headlights, audio, air conditioning), 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 area controller, the second area controller, and the third area controller may be the same or different, or may be partially the same.

[0026] In practical applications, the power input and output terminals inside each area controller are bridged by the first wire, so that each area controller can be connected to the power input of at least two power sources. For example, when the second power source is not working as a backup power source, the first area controller, the second area controller, and the third area controller are connected to the first power source and the third power source respectively through the first wire, and each supplies power to the load equipment of the vehicle, so as to achieve load balancing and redundancy design of power supply. When any power source fails or malfunctions, each area controller can isolate the power source by controlling its internal first balance 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, area controllers, or power sources. For example, when the first power source fails, controlling the first balance switch in the first area controller to disconnect the current path from the first power source allows the vehicle's load devices to still be powered by the third power source connected to the third area controller; when the third power source fails, controlling the first balance switch in the third area controller to disconnect the current path from the third power source allows the vehicle's load devices to still be powered by the first power source connected to the first area controller; when both the first and third power sources fail, controlling the first balance switch in the first area controller to disconnect the current path from the first power source and controlling the first balance switch in the third area controller to disconnect the current path from the third power source allows the vehicle's load devices to still be powered by the second power source connected to the second area controller.

[0027] In this way, by connecting each power source and area controller in series with the first wire, and the design of the balance switch on the first wire in each area controller, not only can wiring costs be saved, but the stability and robustness of the vehicle power supply system can also be effectively improved, reducing the risk of the whole vehicle losing power in the event of an emergency.

[0028] In some embodiments of the present invention, a second balance switch is provided on the first wire inside the second power supply.

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

[0030] Specifically, when the power supply system is working normally, the control of the second balance switch disconnects the current path of the first wire in the second power supply, the second power supply does not work, the first area controller and the second area controller are powered by the first power supply to supply power to the vehicle's load equipment, and the third area controller is powered by the third power supply to supply power to the vehicle's load equipment. When the first power supply and the third power supply have low power, the control of the second balance switch connects the current path of the first wire in the second power supply, and the second power supply works. The first area controller, the second area controller, and the third area controller can simultaneously supply power to the vehicle's load equipment by the first power supply, the second power supply, and the third power supply. When both the first and third power supplies fail, the first balance switch in the first area controller disconnects the current path from the first power supply, and the first balance switch in the third area controller disconnects the current path from the third power supply. At this time, the second balance switch connects the current path of the first wire in the second power supply, and the second power supply resumes operation. The vehicle's load equipment can be powered by the second power supply connected to the second area controller.

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

[0032] Connecting two field-effect transistors with opposite polarities means that their electrodes are connected in opposite directions, such as source to source or drain to drain, allowing bidirectional current blocking within a balanced switch. When both field-effect transistors are on, current can flow bidirectionally; when one field-effect transistor is on, current can flow unidirectionally; thus, the opening and closing of the current path can be controlled.

[0033] In this embodiment, two field-effect transistors connected with opposite polarities can achieve functions such as conduction balance, reverse connection protection, and short-circuit protection. They can also provide higher current control accuracy and flexibility, effectively prevent reverse current or leakage current, and improve 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. With 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 transistors and promptly disconnect or open the current path.

[0035] In some embodiments, each area controller can also draw power from a wire connected between two field-effect transistors for power distribution to secondary load devices (i.e., low-voltage, relatively low-importance load devices). For example, in a 48V low-voltage power supply system, after the area controller draws power from the middle of the two MOSFETs of the first balancing switch, it can use a 48V to 12V DC / DC converter to be compatible with power distribution to 12V secondary load devices.

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

[0037] The first combiner and the second combiner can 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, such as Figure 2 As shown, ZCU_F is the first area controller, ZCU_FR is the second area controller, ZCU_R is the third area controller, combiner A is the first combiner, combiner B is the second combiner, the first power source can be a battery pack output through a DC / DC converter, or a small battery, the second power source can be a small battery used as a backup power source, and the third power source can be another battery pack output through a DC / DC converter; AMC1 and AMC2 are automotive motor controllers. The first balance switch in each area controller is electrically connected to combiner A and combiner B respectively. The electrical connection between combiner A and combiner B forms a combiner circuit for the electrical connection of 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 and / or third power supply passes through the second combiner in ZCU_F. The currents are combined in the combining circuit formed by the electrical connection of the first and second combiners. This combining circuit can provide a larger total output current to power the load devices connected to ZCU_F. Moreover, the first and second combiners can also evenly distribute the load to each power supply, avoiding overload of a single power supply and extending the power supply life.

[0040] Furthermore, when the power supply connected to either end of the first balance switch of ZCU_F fails, another normally functioning power supply can still power the load devices connected to ZCU_F through the combining circuit. For example, assuming that the first, second, and third power supplies are all functioning normally, when the first power supply fails, ZCU_F controls the first balance switch to disconnect the current path from the first power supply. At this time, the second and third power supplies can still power the load devices connected to ZCU_F through the combining circuit, avoiding the situation where the load fails to power and malfunctions, effectively improving the robustness of the vehicle power supply system.

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

[0042] In this embodiment, by supplying power to the load device through area controllers at different locations, it is possible to effectively deal with the situation where the load device loses power in the event of a collision, reduce the risk of the whole vehicle losing power, and further improve the robustness of the power supply system.

[0043] As an example, when a collision occurs in the front compartment of the vehicle, the first power supply fails, and the first balance switch in the first area controller disconnects the current path from 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 compartment of the vehicle, the third power supply fails, and the first balance switch in the third area controller disconnects the current path from 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 between vehicles in front and behind, both the first and third power supplies fail. The first balance switch in the first area controller disconnects the current path from the first power supply, and the first balance switch in the third area controller disconnects the current path from 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 area controller via a DC-to-DC converter, and / or the third power supply is electrically connected to the third area controller via a DC-to-DC converter.

[0045] In this embodiment, the first power supply and / or the third power supply are first electrically connected to a DC-DC converter. The DC-DC converter processes the current output from the first power supply and / or the third power supply before connecting it to other components. The DC-DC converter can realize functions such as voltage transformation, improve power efficiency, and achieve electrical isolation, enabling the first power supply and / or the third power supply to adapt to different loads.

[0046] Reference Figure 3 The diagram illustrates a step flowchart of a control method for a vehicle power supply system according to an embodiment of the present invention. Applied to the power supply system described above, the method may specifically include the following steps: Step 301: In the event of a target power supply failure, determine the target area controller associated with the target power supply in the area controller; wherein the target power supply includes one or more of the first power supply, the second power supply, and the third power supply; Step 302: Control the first balance switch in the target area controller to disconnect the current path from the target power supply.

[0047] In this embodiment, each area controller can disconnect the current path from the faulty target power supply by controlling its internal first balance switch to isolate the target power supply and ensure that the target power supply does not affect other load devices, area controllers, or power supplies.

[0048] For example, when the first power supply fails, the target area controller associated with the first power supply is identified as the first area controller. The first balance switch in the first area controller is controlled to disconnect the current path from 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 area controller. When the third power supply fails, the target area controller associated with the third power supply is identified as the third area controller. The first balance switch in the third area controller is controlled to disconnect the current path from 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 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 identified as the first area controller and the third area controller. The first balance switch in the first area controller is controlled to disconnect the current path from the first power supply, and the first balance switch in the third area controller is controlled to disconnect the current path from 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, such as Figure 4 As shown, VBAT / DCDC represents the first power supply, and DCDC represents the third power supply; the first area controller, the second area controller, the third area controller, and the second power supply are all equipped with a balance switch, and the balance switch is equipped with MOS transistors 1 and MOS transistor 2 connected with opposite polarities; V represents the current transmitted on the first conductor, and V1, V2, V3, and V4 are branches of V; Efuse is a fuse. Taking the first area controller as an example, its internal MOSFET 1 controls the switching on and off of the current path between the balance switch and the first power supply, and MOSFET 2 controls the switching on and off of the current path between the balance switch and the second power supply and / or the third power supply. In MOSFET 1, P represents the positive terminal of the sampling resistor, N represents the negative terminal of the sampling resistor, and the sampling resistor is used to detect the current in the circuit; G represents the pin used to control the conduction of MOSFET A; OUT represents the power output terminal; VS represents the power input terminal. The circuit structure of MOSFET 2 is similar to that of MOSFET 3, and will not be described in detail 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, MOSFETs 1 and 2 are turned on, and the circuit between VA, the balance switch, and VB is normally conductive within the first area controller. When a short circuit to ground is detected through the sampling resistor, indicating a fault in VA, the G pin of MOSFET 1 within the first area controller is controlled to turn off MOSFET 1, thereby disconnecting the current path between the balance switch and VB, thus protecting VB. When a short circuit to ground is detected through the sampling resistor, indicating a fault in VB, the G pin of MOSFET 2 within the first area controller is controlled to turn off MOSFET 2, thereby disconnecting the current path between the balance switch and VA, thus protecting VA.

[0051] The embodiments of the present invention have the following advantages: By connecting the first power supply, the second power supply, the third power supply, and the first area controller, the second area controller, and the third area controller in series with the first wire, each area controller supplies power to the vehicle's load equipment, effectively reducing the wiring cost of the power supply system and simplifying the circuit design; moreover, combined with the balance switch in each area controller, the path between the power supply and the faulty power supply can be disconnected in time, realizing the isolation of the faulty power supply and ensuring that it does not affect other normal power supplies or area controllers, improving the stability and robustness of the power supply system, and reducing the risk of vehicle power failure due to sudden situations; furthermore, the power supplies connected to each area controller can form a dual backup, so even if a serious collision accident causes two sets of power supplies to fail, the load equipment can still be powered by the other normally operating power supply without being affected by the faulty power supply, further reducing the risk of the vehicle losing power completely.

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

[0053] Reference Figure 6 The diagram shows a structural schematic of a control device for a vehicle power supply system according to an embodiment of the present invention, which may specifically include the following modules: The target area controller determination module 601 is used to determine the target area controller associated with the target power supply in the area controller when the 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 used to control the first balance switch in the target area controller to disconnect the current path from the target power supply.

[0054] Some embodiments of the present invention also provide a vehicle including the power supply system described above.

[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, it implements the control method of the power supply system of the vehicle described above.

[0056] Some embodiments of the present invention also provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the control method for the power supply system of the vehicle described above.

[0057] Some embodiments of the present invention also provide a computer program product, including a computer program that, when executed by a processor, implements the control method for the power supply system of the vehicle described above.

[0058] As the device embodiment is basically similar to the method embodiment, the description is relatively simple, and relevant parts can be found in the 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, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties. Furthermore, the collection, use and processing of the relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions, and corresponding operation entry points are provided for users to choose to authorize or refuse.

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

[0061] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, apparatus, or computer program products. Therefore, embodiments of the present invention can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, embodiments of the present invention can take the form of computer program products implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0062] Embodiments of the present invention are described with reference to flowchart illustrations and / or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0063] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing terminal device to operate in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more 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 equipment, causing a series of operational steps to be performed on the computer or other programmable terminal equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable terminal equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0065] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling 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" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes the aforementioned element.

[0067] The above describes a vehicle power supply system and its control method, device, vehicle, and medium. The invention has been described in detail, and specific examples have been used to illustrate the principles and implementation methods of the invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the invention. Therefore, the content of this specification should not be construed as a limitation of the invention.

Claims

1. A power supply system for a vehicle, characterized in that, The power supply system includes: The area controller includes a first area controller, a second area controller, and a third area controller; The first area controller is connected in series with the first power supply and the second area controller via a first wire; The second area controller is connected in series with the second power supply via the first wire; The third area controller is connected in series with the second power supply and the third power supply respectively via the first wire; A first balance switch is provided on the first wire in each area controller, and each area controller is electrically connected to the load equipment of the vehicle. The first power source is located in the front compartment of the vehicle, the third power source is located in the rear compartment of the vehicle, and the second power source is located between the first power source and the third power source.

2. The power supply system according to claim 1, characterized in that, A second balance switch is installed on the first wire inside the second power supply.

3. The power supply system according to claim 1, characterized in that, Each area controller is also equipped with a first combiner and a second combiner. The first balance switch is electrically connected to the first combiner and the second combiner respectively. The first combiner and the second combiner are electrically connected to form a merging circuit, and the merging circuit is electrically connected to the load device.

4. The power supply system according to claim 2, characterized in that, The first balance switch and / or the second balance switch contain two field-effect transistors electrically connected with opposite polarities.

5. The power supply system according to claim 1, characterized in that, The first area controller is located in the front compartment of the vehicle, the third area controller is located in the rear compartment of the vehicle, and the second area controller is located between the first area controller and the third area controller.

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

7. A control method for a vehicle's power supply system, characterized in that, Applied to the power supply system as described in any one of claims 1-6, the method comprises: In the event of a target power failure, a target area controller associated with the target power is identified in the area controller; wherein the target power includes one or more of the first power, the second power, and the third power. The first balance switch within the target area controller is controlled to disconnect the current path from the target power supply.

8. A control device for a vehicle's power supply system, characterized in that, Applied to the power supply system as described in any one of claims 1-6, the device comprises: A target area controller determination module is used to determine, in the area controllers, a target area controller associated with the target power supply in the event of a target power supply failure; 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 balance switch in the target area controller to disconnect the current path from the target power supply.

9. A vehicle, characterized in that, Includes the power supply system of the vehicle as described in any one of claims 1-6.

10. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium, which, when executed by a processor, implements the control method for the power supply system of the vehicle as described in claim 7.

Images