Power distribution system of vehicle, vehicle, power distribution method, equipment and medium

Abstract

The invention discloses a power distribution system of a vehicle, the vehicle, a power distribution method, equipment and a medium. The power distribution system of the vehicle comprises a whole vehicle domain controller; the trailer battery power distribution unit is connected with the whole vehicle domain controller; the trailer power supply converter is connected with the trailer related controller and the trailer battery power distribution unit, and is used for converting high voltage of a power battery configured by a trailer into working voltage required by the trailer related controller after being awakened by the trailer battery power distribution unit, and supplying power to the trailer related controller; and the tractor storage battery is connected with the whole vehicle domain controller and the trailer battery power distribution unit and supplies power to the whole vehicle domain controller and the trailer battery power distribution unit. According to the embodiment of the invention, the tractor storage battery supplies power to the tractor and the trailer in a unified manner, the weight and cost of the vehicle can be effectively reduced, the power shortage of the trailer is reduced, and the state of the trailer can be monitored in real time, so that the system safety and the user experience are improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a vehicle power distribution system, vehicle, power distribution method, equipment and medium. Background Technology

[0002] Powered trailers are widely used in long-distance logistics transportation. During use, it is necessary to distribute power to both the tractor and the trailer.

[0003] Existing solutions typically equip the tractor and trailer with separate batteries, such as... Figure 3 As shown, the tractor battery powers the vehicle's domain controller, while the trailer battery powers the trailer's various controllers. However, in practical applications, this independent power supply scheme has several shortcomings: First, it adds extra weight and cost to the vehicle; second, the trailer may experience battery depletion. Tractors typically have automatic recharging capabilities, but trailers generally lack an effective recharging mechanism. In scenarios requiring long-term parking or frequent power cycling, such as waiting for loading / unloading for extended periods or frequently shutting down after short-term operations, the battery is prone to deep depletion due to static current consumption, affecting vehicle restart and system operation; furthermore, because the tractor and trailer power supply systems are independent and lack coordination, the driver cannot monitor the trailer's operation or charging status in real time when either the tractor or trailer is charging independently, thus increasing system complexity and potential failure risks. Summary of the Invention

[0004] Based on this, the present invention provides a vehicle power distribution system, vehicle, power distribution method, equipment and medium, which provides unified power supply to the tractor and trailer through the tractor's battery, which can effectively reduce vehicle weight and cost, reduce trailer power loss, and monitor trailer status in real time, thereby improving system safety and user experience.

[0005] Firstly, a vehicle power distribution system is provided, comprising:

[0006] Vehicle domain controller;

[0007] Trailer battery power distribution unit, which is connected to the vehicle domain controller;

[0008] The trailer power converter and trailer-related controller are respectively connected to the trailer-related controller and the trailer battery power distribution unit. The trailer power converter is used to convert the high voltage of the power battery configured in the trailer into the working voltage required by the trailer-related controller after being awakened by the trailer battery power distribution unit, and to supply power to the trailer-related controller.

[0009] The tractor battery is connected to both the vehicle domain controller and the trailer battery distribution unit to supply power to them.

[0010] Furthermore, among which:

[0011] After the tractor starts, the tractor battery supplies power to the vehicle domain controller and the trailer battery distribution unit, and sends a power-on command to the trailer battery distribution unit.

[0012] The trailer battery power distribution unit wakes up the trailer power converter according to the power-on command.

[0013] After the trailer power converter is activated, it converts the high-voltage electricity from the power battery configured in the trailer into the operating voltage required by the trailer-related controller and supplies power to the trailer-related controller.

[0014] Furthermore, when the tractor unit is shut down, the vehicle domain controller sends a power-off or hibernation command to the trailer battery power distribution unit;

[0015] The trailer battery power distribution unit controls the trailer-related controllers and trailer power converters on the trailer to power down based on preset power-down logic;

[0016] When the trailer-related controller and the trailer power converter are powered off, the trailer battery power distribution unit enters a low-power sleep mode.

[0017] Furthermore, when the trailer battery power distribution unit enters a low-power sleep mode, it maintains power supply to preserve communication monitoring and wake-up capabilities.

[0018] Furthermore, when the vehicle is in a power-down sleep state, if the tractor is in a charging state and the trailer is in a non-charging state, the vehicle domain controller is woken up, and the trailer battery power distribution unit enters a low-power sleep mode.

[0019] Furthermore, when the vehicle is in a power-down sleep state, if both the trailer and the tractor are charging, or if the tractor is not charging while the trailer is charging, the trailer battery distribution unit wakes up the vehicle domain controller and the tractor-related controllers to obtain the trailer's charging status in real time.

[0020] In a second aspect, a vehicle is provided, comprising: an electrical distribution system for the vehicle according to the first aspect described above.

[0021] Thirdly, a power distribution method for a vehicle's power distribution system is provided, wherein the power distribution system is the same as the vehicle's power distribution system described in the first aspect above, and the power distribution method includes:

[0022] After the tractor starts, the tractor battery supplies power to the vehicle domain controller and the trailer battery distribution unit, and sends a power-on command to the trailer battery distribution unit.

[0023] The trailer battery power distribution unit wakes up the trailer power converter according to the power-on command.

[0024] After the trailer power converter is activated, it converts the high-voltage electricity of the power battery configured in the trailer into the working voltage required by the trailer-related controller and supplies power to the trailer-related controller.

[0025] When the tractor is shut down, the vehicle domain controller sends a power-off or hibernation command to the trailer battery power distribution unit;

[0026] The trailer battery power distribution unit controls the trailer-related controllers and trailer power converters on the trailer to power down based on preset power-down logic;

[0027] After the trailer-related controller and the trailer power converter are powered off, the trailer battery power distribution unit enters a low-power sleep mode.

[0028] When the vehicle is in a power-down sleep state, if the tractor is in a charging state and the trailer is in a non-charging state, the vehicle domain controller is woken up and the trailer battery power distribution unit is in a low-power sleep mode.

[0029] When the vehicle is in a power-down sleep state, if both the trailer and the tractor are charging, or if the tractor is not charging while the trailer is charging, the trailer battery distribution unit wakes up the vehicle domain controller and the tractor-related controllers to obtain the real-time charging status of the trailer.

[0030] Fourthly, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, it implements a power distribution method for a vehicle's power distribution system according to the second aspect described above.

[0031] Fifthly, a computer-readable storage medium is provided, including a memory and a computer program stored on the memory and executable on a processor, which, when executed by the processor, implements a power distribution method for a vehicle's power distribution system according to the second aspect described above.

[0032] The vehicle power distribution system proposed in this application comprises a vehicle domain controller, a trailer battery power distribution unit, a trailer power converter, a trailer-related controller, and a tractor battery. The trailer battery power distribution unit is connected to the vehicle domain controller. The trailer power converter is connected to both the trailer-related controller and the trailer battery power distribution unit, and after being activated by the trailer battery power distribution unit, it converts the high-voltage electricity from the trailer's power battery into the operating voltage required by the trailer-related controller, thus powering the trailer-related controller. The tractor battery is connected to both the vehicle domain controller and the trailer battery power distribution unit, providing power to both. Therefore, by using the tractor battery to provide unified power to both the tractor and trailer, vehicle weight and cost can be effectively reduced, trailer battery depletion can be minimized, and trailer status can be monitored in real time, thereby improving system safety and user experience. Attached Figure Description

[0033] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0034] Figure 1 A schematic diagram of the vehicle's power distribution system provided in an embodiment of this application;

[0035] Figure 2 A trailer-to-vehicle topology diagram of the vehicle's power distribution system provided in this application embodiment;

[0036] Figure 3 This is a diagram of the trailer power distribution scheme before optimization provided in the embodiments of this application;

[0037] Figure 4 This is a diagram illustrating the optimized trailer power distribution scheme provided in an embodiment of this application.

[0038] Figure 5 A flowchart illustrating the power distribution method of the vehicle's power distribution system provided in this application embodiment;

[0039] Figure 6 This is a structural block diagram of a computer device provided in an embodiment of this application. Detailed Implementation

[0040] The present application will now be described in further detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the application. Furthermore, it should be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings.

[0041] It should be noted that, unless otherwise specified, the embodiments and features of the embodiments in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] The following describes in detail, with reference to the accompanying drawings, the vehicle's power distribution system, vehicle, power distribution method, equipment, and medium according to embodiments of this application.

[0043] Before describing the power distribution system of a vehicle according to embodiments of the present invention, the vehicle itself is first described. In embodiments of the present invention, the vehicle generally refers to a large vehicle including a tractor and a trailer. The trailer is a powered trailer, that is, a trailer including a power battery, a drive motor, a braking system, and an energy recovery device. The trailer and the tractor work together to share the driving load and recover braking energy, thereby increasing the overall vehicle torque and reducing the power consumption of the tractor, effectively extending the overall driving range.

[0044] Figure 1 This is a schematic diagram of a vehicle's power distribution system according to one embodiment of this application. Figure 1 As shown, a vehicle power distribution system according to one embodiment of this application includes: a vehicle domain controller 110, a trailer battery power distribution unit 120, a trailer power converter 130, a trailer-related controller 140, and a tractor battery 150, wherein:

[0045] The vehicle domain controller 110 is used to manage and coordinate the various controllers in the vehicle.

[0046] Trailer battery power distribution unit 120, which is connected to the vehicle domain controller.

[0047] The trailer power converter 130 and the trailer-related controller 140 are respectively connected to the trailer-related controller and the trailer battery power distribution unit. The trailer power converter is used to convert the high voltage of the power battery configured in the trailer into the working voltage required by the trailer-related controller after being awakened by the trailer battery power distribution unit, and to supply power to the trailer-related controller.

[0048] The tractor battery 150 is connected to the vehicle domain controller and the trailer battery distribution unit to supply power to the vehicle domain controller and the trailer battery distribution unit.

[0049] Existing trailer power distribution solutions, such as Figure 3 As shown, the tractor and trailer are each equipped with independent batteries. The tractor's battery powers the vehicle domain controller, while the trailer's battery powers the various controllers within the trailer. The optimized vehicle power distribution scheme proposed in this application is as follows: Figure 4 As shown, the independent battery on the trailer has been eliminated, and the trailer battery distribution unit is connected to the tractor battery, and the trailer power converter and related trailer controllers are also connected.

[0050] In one embodiment of this application, after the tractor unit starts, the tractor unit's battery supplies power to the vehicle domain controller and the trailer battery distribution unit, and sends a power-on command to the trailer battery distribution unit; the trailer battery distribution unit wakes up the trailer power converter according to the power-on command; after the trailer power converter is woken up, it converts the high-voltage electricity of the power battery configured in the trailer into the working voltage required by the trailer-related controllers, and supplies power to the trailer-related controllers.

[0051] In the above process, combined with Figure 2 As shown, the vehicle domain controller sends commands to the trailer battery power distribution unit via the CAN bus; the trailer battery power distribution unit wakes up the trailer power converter via a hard-wired signal; after the trailer-related controllers are powered on, they communicate with the vehicle domain controller and the trailer battery power distribution unit via the CAN bus to complete system initialization.

[0052] In one embodiment of this application, when the tractor is turned off, the vehicle domain controller sends a power-down or sleep command to the trailer battery power distribution unit; the trailer battery power distribution unit controls the trailer-related controllers and the trailer power converter on the trailer to power down based on preset power-down logic; after the trailer-related controllers and the trailer power converter are powered down, the trailer battery power distribution unit enters a low-power sleep mode.

[0053] In one embodiment of this application, when the trailer battery power distribution unit enters a low-power sleep mode, it maintains power supply to preserve communication monitoring and wake-up capabilities.

[0054] During this process, the trailer battery power distribution unit is powered by the tractor's battery.

[0055] In one embodiment of this application, when the vehicle is in a power-down sleep state, if the tractor is in a charging state and the trailer is in a non-charging state, the vehicle domain controller is woken up and the trailer battery power distribution unit is in a low-power sleep mode.

[0056] In one embodiment of this application, when the vehicle is in a power-down sleep state, if both the trailer and the tractor are charging, or if the tractor is not charging while the trailer is charging, the trailer battery distribution unit wakes up the vehicle domain controller and the tractor-related controller to obtain the charging status of the trailer in real time.

[0057] Once the vehicle domain controller is activated, the trailer's charging status, such as charging progress and status, can be viewed intuitively through the instrument panel or vehicle networking system. This allows the driver to have real-time and intuitive control over the trailer's condition.

[0058] Meanwhile, during the wake-up process, the battery power consumed by the tractor due to the wake-up process can be replenished in time by the tractor's own power replenishment system, thereby avoiding a power outage.

[0059] The vehicle power distribution system according to an embodiment of the present invention comprises a vehicle domain controller, a trailer battery power distribution unit, a trailer power converter, a trailer-related controller, and a tractor battery. The trailer battery power distribution unit is connected to the vehicle domain controller. The trailer power converter is connected to both the trailer-related controller and the trailer battery power distribution unit, and is used to convert the high-voltage electricity from the trailer's power battery into the operating voltage required by the trailer-related controller after being awakened by the trailer battery power distribution unit, and to power the trailer-related controller. The tractor battery is connected to both the vehicle domain controller and the trailer battery power distribution unit to power both. Therefore, by providing unified power to both the tractor and trailer through the tractor battery, vehicle weight and cost can be effectively reduced, trailer battery depletion can be minimized, and trailer status can be monitored in real time, thereby improving system safety and user experience.

[0060] Figure 5 This is a flowchart of a power distribution method for a vehicle's power distribution system according to an embodiment of this application. Figure 5 As shown, a power distribution method for a vehicle's power distribution system according to an embodiment of this application is provided. The power distribution system is the power distribution system of any of the above embodiments of the vehicle. The vehicle includes a tractor and a trailer. The power distribution method includes the following steps:

[0061] S501: After the tractor starts, the tractor battery supplies power to the vehicle domain controller and the trailer battery power distribution unit, and sends a power-on command to the trailer battery power distribution unit;

[0062] S502: The trailer battery power distribution unit wakes up the trailer power converter according to the power-on command;

[0063] S503: After the trailer power converter is woken up, it converts the high voltage of the power battery configured in the trailer into the working voltage required by the trailer-related controller and supplies power to the trailer-related controller.

[0064] S504: When the tractor unit is shut down, the vehicle domain controller sends a power-off or hibernation command to the trailer battery power distribution unit;

[0065] S505: The trailer battery power distribution unit controls the trailer-related controllers and the trailer power converter on the trailer to power down based on a preset power-down logic;

[0066] S506: After the trailer-related controller and the trailer power converter are powered off, the trailer battery power distribution unit enters a low-power sleep mode;

[0067] S507: When the vehicle is in a power-down sleep state, if the tractor is in a charging state and the trailer is in a non-charging state, the vehicle domain controller is woken up and the trailer battery power distribution unit is in a low-power sleep mode.

[0068] S508: When the vehicle is in a power-down sleep state, if both the trailer and the tractor are charging, or if the tractor is not charging while the trailer is charging, the trailer battery distribution unit wakes up the vehicle domain controller and the tractor-related controllers to obtain the charging status of the trailer in real time.

[0069] The power distribution method of the vehicle's power distribution system according to an embodiment of this application comprises a vehicle domain controller, a trailer battery power distribution unit, a trailer power converter, a trailer-related controller, and a tractor battery. The trailer battery power distribution unit is connected to the vehicle domain controller. The trailer power converter is connected to both the trailer-related controller and the trailer battery power distribution unit, and is used to convert the high-voltage electricity from the trailer's power battery into the operating voltage required by the trailer-related controller after being awakened by the trailer battery power distribution unit, and to supply power to the trailer-related controller. The tractor battery is connected to both the vehicle domain controller and the trailer battery power distribution unit to supply power to both. Therefore, by using the tractor battery to provide unified power to both the tractor and the trailer, vehicle weight and cost can be effectively reduced, trailer battery drain can be minimized, and trailer status can be monitored in real time, thereby improving system safety and user experience.

[0070] Specific limitations regarding the power distribution method of a vehicle's electrical distribution system can be found in the limitations of the vehicle's electrical distribution system described above, and will not be repeated here. Each module of the aforementioned power distribution method of the vehicle's electrical distribution system can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device in hardware form, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0071] Furthermore, embodiments of this application provide a vehicle, including a power distribution system according to any of the above embodiments. The vehicle comprises a vehicle domain controller, a trailer battery power distribution unit, a trailer power converter, a trailer-related controller, and a tractor battery. The trailer battery power distribution unit is connected to the vehicle domain controller. The trailer power converter is connected to both the trailer-related controller and the trailer battery power distribution unit, and, upon being activated by the trailer battery power distribution unit, converts the high-voltage electricity from the trailer's power battery into the operating voltage required by the trailer-related controller, thus powering the trailer-related controller. The tractor battery is connected to both the vehicle domain controller and the trailer battery power distribution unit, providing power to both. Therefore, by using the tractor battery to provide unified power to both the tractor and trailer, vehicle weight and cost can be effectively reduced, trailer battery depletion can be minimized, and trailer status can be monitored in real time, thereby improving system safety and user experience.

[0072] Furthermore, other components and functions of the vehicle according to the embodiments of this application are known to those skilled in the art and will not be described in detail here.

[0073] The following is for reference. Figure 6 , Figure 6 A schematic diagram of a computer device structure suitable for implementing embodiments of this application is shown.

[0074] like Figure 6 As shown, the computer system 1000 includes a central processing unit (CPU) 1001, which can perform various appropriate actions and processes based on programs stored in read-only memory (ROM) 1002 or programs loaded from storage section 1008 into random access memory (RAM) 1003. The RAM 1003 also stores various programs and data required for the system's operating instructions. The CPU 1001, ROM 1002, and RAM 1003 are interconnected via a bus 1004. An input / output (I / O) interface 1005 is also connected to the bus 1004.

[0075] The following components are connected to I / O interface 1005: an input section 1006 including a keyboard, mouse, etc.; an output section 1007 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 1008 including a hard disk, etc.; and a communication section 1009 including a network interface card such as a LAN card, modem, etc. The communication section 1009 performs communication processing via a network such as the Internet. A drive 1010 is also connected to I / O interface 1005 as needed. A removable medium 1011, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on drive 1010 as needed so that computer programs read from it can be installed into storage section 1008 as needed.

[0076] Specifically, according to embodiments of this application, the flowchart above refers to... Figure 5 The described process can be implemented as a computer-readable storage medium. For example, embodiments of this application include a computer-readable storage medium comprising a computer program containing program code for performing the methods shown in the flowchart, such as executing: after the tractor unit starts, the tractor unit battery supplies power to the vehicle domain controller and the trailer battery distribution unit, and sends a power-on command to the trailer battery distribution unit; the trailer battery distribution unit wakes up the trailer power converter according to the power-on command; after the trailer power converter is woken up, it converts the high-voltage electricity of the power battery configured in the trailer into the operating voltage required by the trailer-related controller, and supplies power to the trailer-related controller; when the tractor unit is turned off, the vehicle domain controller sends a power-off or hibernation command to the trailer battery distribution unit; the trailer battery... Based on preset power-down logic, the power distribution unit controls the trailer-related controllers and trailer power converters on the trailer to power down. After the trailer-related controllers and trailer power converters are powered down, the trailer battery power distribution unit enters a low-power sleep mode. When the vehicle is in a power-down sleep state, if the tractor is charging and the trailer is not charging, the vehicle domain controller is woken up, and the trailer battery power distribution unit enters a low-power sleep mode. When the vehicle is in a power-down sleep state, if both the trailer and the tractor are charging, or if the tractor is not charging and the trailer is charging, the trailer battery power distribution unit wakes up the vehicle domain controller and the tractor-related controllers to obtain the charging status of the trailer in real time.

[0077] Specifically, according to embodiments of this application, the flowchart above refers to... Figure 5The described process can be implemented as a computer software program. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowchart, such as executing: after the tractor unit starts, the tractor unit battery supplies power to the vehicle domain controller and the trailer battery distribution unit, and sends a power-on command to the trailer battery distribution unit; the trailer battery distribution unit wakes up the trailer power converter according to the power-on command; after the trailer power converter is woken up, it converts the high-voltage electricity of the power battery configured in the trailer into the operating voltage required by the trailer-related controller, and supplies power to the trailer-related controller; when the tractor unit is turned off, the vehicle domain controller sends a power-off or hibernation command to the trailer battery distribution unit; The trailer battery power distribution unit, based on preset power-down logic, controls the trailer-related controllers and trailer power converters on the trailer to power down. After the trailer-related controllers and trailer power converters are powered down, the trailer battery power distribution unit enters a low-power sleep mode. When the vehicle is in a power-down sleep state, if the tractor is charging and the trailer is not charging, the vehicle domain controller is woken up, and the trailer battery power distribution unit enters a low-power sleep mode. When the vehicle is in a power-down sleep state, if both the trailer and the tractor are charging, or if the tractor is not charging and the trailer is charging, the trailer battery power distribution unit wakes up the vehicle domain controller and the tractor-related controllers to obtain the charging status of the trailer in real time.

[0078] In such an embodiment, the computer program includes program code for performing the methods shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via communication section 1009, and / or installed from removable media 1011. When the computer program is executed by central processing unit (CPU) 1001, it performs the functions defined in the system of this application.

[0079] It should be noted that the computer-readable medium shown in this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media can also be any computer-readable medium other than computer-readable storage media, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber, RF, etc., or any suitable combination thereof.

[0080] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operational instructions of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two connected blocks may actually be executed substantially in parallel, or they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified functions or operational instructions, or using a combination of dedicated hardware and computer instructions.

[0081] The units or modules described in the embodiments of this application can be implemented in software or hardware. The described units or modules can also be located in a processor. The names of these units or modules do not, in certain circumstances, constitute a limitation on the unit or module itself.

[0082] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A vehicle power distribution system, characterized in that, The vehicle includes a tractor and a trailer, and the power distribution system includes: Vehicle domain controller; Trailer battery power distribution unit, which is connected to the vehicle domain controller; The trailer power converter and trailer-related controller are respectively connected to the trailer-related controller and the trailer battery power distribution unit. The trailer power converter is used to convert the high voltage of the power battery configured in the trailer into the working voltage required by the trailer-related controller after being awakened by the trailer battery power distribution unit, and to supply power to the trailer-related controller. The tractor battery is connected to both the vehicle domain controller and the trailer battery distribution unit to supply power to them.

2. The vehicle power distribution system according to claim 1, characterized in that, in: After the tractor starts, the tractor battery supplies power to the vehicle domain controller and the trailer battery distribution unit, and sends a power-on command to the trailer battery distribution unit. The trailer battery power distribution unit wakes up the trailer power converter according to the power-on command. After the trailer power converter is activated, it converts the high-voltage electricity from the power battery configured in the trailer into the operating voltage required by the trailer-related controller and supplies power to the trailer-related controller.

3. The vehicle power distribution system according to claim 1, characterized in that, in: When the tractor is shut down, the vehicle domain controller sends a power-off or hibernation command to the trailer battery power distribution unit; The trailer battery power distribution unit controls the trailer-related controllers and trailer power converters on the trailer to power down based on preset power-down logic; When the trailer-related controller and the trailer power converter are powered off, the trailer battery power distribution unit enters a low-power sleep mode.

4. The vehicle power distribution system according to claim 3, characterized in that, When the trailer battery power distribution unit enters a low-power sleep mode, it maintains power supply to preserve communication monitoring and wake-up capabilities.

5. The vehicle power distribution system according to claim 3 or 4, characterized in that, in: When the vehicle is in a power-down sleep state, if the tractor is charging and the trailer is not charging, the vehicle domain controller will be woken up and the trailer battery power distribution unit will enter a low-power sleep mode.

6. The vehicle power distribution system according to claim 3 or 4, characterized in that, in: When the vehicle is in a power-down sleep state, if both the trailer and the tractor are charging, or if the tractor is not charging while the trailer is charging, the trailer battery distribution unit wakes up the vehicle domain controller and the tractor-related controllers to obtain the charging status of the trailer in real time.

7. A vehicle, characterized in that, include: The vehicle power distribution system according to any one of claims 1-6.

8. A power distribution method for a vehicle's power distribution system, characterized in that, The power distribution system is the power distribution system of a vehicle according to any one of claims 1-6, the vehicle including a tractor and a trailer, and the power distribution method includes: After the tractor starts, the tractor battery supplies power to the vehicle domain controller and the trailer battery distribution unit, and sends a power-on command to the trailer battery distribution unit. The trailer battery power distribution unit wakes up the trailer power converter according to the power-on command. After the trailer power converter is activated, it converts the high-voltage electricity of the power battery configured in the trailer into the working voltage required by the trailer-related controller and supplies power to the trailer-related controller. When the tractor is shut down, the vehicle domain controller sends a power-off or hibernation command to the trailer battery power distribution unit; The trailer battery power distribution unit controls the trailer-related controllers and trailer power converters on the trailer to power down based on preset power-down logic; After the trailer-related controller and the trailer power converter are powered off, the trailer battery power distribution unit enters a low-power sleep mode. When the vehicle is in a power-down sleep state, if the tractor is in a charging state and the trailer is in a non-charging state, the vehicle domain controller is woken up and the trailer battery power distribution unit is in a low-power sleep mode. When the vehicle is in a power-down sleep state, if both the trailer and the tractor are charging, or if the tractor is not charging while the trailer is charging, the trailer battery distribution unit wakes up the vehicle domain controller and the tractor-related controllers to obtain the charging status of the trailer in real time.

9. A computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the power distribution method of the vehicle's power distribution system according to claim 8.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the power distribution method of the vehicle's power distribution system according to claim 8.

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