Vehicle power distribution integrated architecture, vehicle management system, automobile

Abstract

This application discloses a vehicle power distribution integrated architecture, a vehicle management system, and a motor vehicle. The vehicle power distribution integrated architecture includes a low-voltage battery, a battery management module, and a low-voltage power distribution module, wherein the low-voltage battery is electrically connected to the low-voltage power distribution module, and a low-voltage load input terminal for inputting low-voltage loads is disposed on the low-voltage power distribution module. The battery management module and the low-voltage power distribution module share the same controller, and the controller integrates the function of managing the low-voltage battery and the function of controlling power distribution for the low-voltage loads, thereby creatively integrating the control modules of the battery management scheme and the low-voltage power distribution scheme into the same controller, resulting in features such as a simplified control circuit, low cost, and simple architecture.

Description

[Technical Field]

[0001] [CROSS-REFERENCE TO RELATED APPLICATIONS] This application incorporates by reference Chinese patent application No. 202311162274.6, entitled "Vehicle Power Distribution Integrated Architecture, Vehicle Management System, Automobile," filed on September 8, 2023, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the field of automotive technology, and more particularly to vehicle power distribution integration architectures, vehicle management systems, and automobiles. [Background technology]

[0003] Conventional body low-voltage power distribution mainly uses discrete low-voltage lithium-ion battery technology, deploys fuse box products to realize primary power distribution for low-voltage loads, and uses battery management systems to manage the low-voltage lithium-ion batteries.

[0004] However, in the current power supply architecture, the low-voltage power distribution system and the battery management system are installed independently, and the fuse box used in the low-voltage power distribution system generally adopts a conventional relay or fuse solution, which has problems such as large size, complex circuitry, and high maintenance costs. Summary of the Invention [Problem to be solved by the invention]

[0005] In view of the above problems, the present application provides a vehicle power distribution integrated architecture, a vehicle management system, and a vehicle that can solve the problems of current vehicle power supply architectures, which are large in size, have complex circuits, and have high maintenance costs because the low-voltage power distribution system and the battery management system are installed independently. [Means for solving the problem]

[0006] A first aspect of an embodiment of the present application provides a vehicle power distribution integrated architecture, the vehicle power distribution integrated architecture including: a low-voltage battery; a battery management module; and a low-voltage power distribution module; the low voltage battery is electrically connected to the low voltage power distribution module; a low-voltage load input terminal for inputting a low-voltage load is disposed on the low-voltage power distribution module; The battery management module and the low-voltage power distribution module share the same controller, and the controller integrates the function of managing the low-voltage battery and the function of controlling power distribution to the low-voltage load.

[0007] In the technical solution of the embodiments of the present application, a low-voltage load input terminal for inputting a low-voltage load is arranged in the low-voltage power distribution module, and the power output of the low-voltage battery is configured by the low-voltage power distribution module. The battery management module is used to manage the low-voltage battery. The battery management module and the low-voltage power distribution module share the same controller, and the controller integrates the function of managing the low-voltage battery and the function of controlling the power distribution for the low-voltage load. This creatively integrates the battery management solution and the low-voltage power distribution control solution in the low-voltage power electronics field into the same controller, and simplifies the control circuit by multiplexing some devices, resulting in low cost and simple architecture.

[0008] In some embodiments, the vehicle power distribution integration architecture comprises: The low-voltage power supply input terminal is electrically connected to the low-voltage power distribution module for inputting the low-voltage power converted by the power battery; The low voltage power distribution module is further used to provide power allocation to the low voltage power source.

[0009] In the technical solution of the embodiments of the present application, the low-voltage power input terminal is used to input the low-voltage power obtained by converting the voltage of the power battery, and the low-voltage power distribution module allocates the low-voltage power to the low-voltage load input terminal. For example, in the case of multiple low-voltage load input terminals, power can be allocated to each low-voltage load input terminal according to the power demand of the low-voltage load input, and power can also be allocated based on the working state of the input low-voltage load, thereby realizing dynamic adjustment of the output power of the low-voltage power supply and achieving the purpose of protecting the battery and the low-voltage load.

[0010] In some embodiments, the battery management module includes a first switch module controlled by the controller; The first switch module is used to manage the charging and discharging process of the low-voltage battery under the control of the controller.

[0011] In the technical solution of the embodiment of the present application, the first switch module is controlled by a controller, and the controller controls the on / off state of the first switch module to perform the charging and discharging operation of the low-voltage battery, so that the low-voltage power distribution module can multiplex the first switch module, reduce the wire harness between the low-voltage power distribution module and the battery management module, and reduce the safety risk issue caused by short-circuiting of the wire harness between different circuit boards.

[0012] In some embodiments, the low voltage battery is electrically connected to the low voltage power distribution module via the first switch module.

[0013] In the technical solution of the embodiments of the present application, a first switch module is connected between a low-voltage battery and a low-voltage power distribution module, and the low-voltage battery is electrically connected to the low-voltage power distribution module through the first switch module. The first switch module is controlled by a controller, and the controller controls the on / off state of the first switch module to control the on / off state between the low-voltage battery and the low-voltage power distribution module. The first switch module controls the power distribution output of the low-voltage power distribution module, so that the low-voltage power distribution module and the battery management module can multiplex the first switch module, thereby reducing the wire harness between the low-voltage power distribution module and the battery management module and reducing safety risk issues caused by short-circuiting of the wire harness between different circuit boards.

[0014] In some embodiments, the low voltage power distribution module further includes a second switch module controlled by the controller; The second switch module is used to control the input state of the low-voltage power input terminal.

[0015] In the technical solution of the embodiments of the present application, the second switch module is controlled by the controller, and can control the input state of the low-voltage power input terminal to control the power distribution output of the low-voltage power distribution module, for example, control the low-voltage power input terminal to charge the low-voltage battery, or control at least one of the low-voltage power input terminal and the low-voltage battery to supply power to the low-voltage load input terminal for output, thereby realizing integrated control of the battery management module and the low-voltage power distribution module.

[0016] In some embodiments, the second switch module is connected between the low voltage power supply input and the low voltage load input; and / or The second switch module is connected between the low-voltage power input terminal and the battery management module.

[0017] In the technical solution of the embodiments of the present application, the second switch module is controlled by the controller, and can control the input state of the low-voltage power input terminal to control the power distribution output of the low-voltage power distribution module, for example, control the low-voltage power input terminal to charge the low-voltage battery, or control at least one of the low-voltage power input terminal and the low-voltage battery to supply power to the low-voltage load input terminal for output, thereby realizing integrated control of the battery management module and the low-voltage power distribution module.

[0018] In some embodiments, the low voltage power distribution module further includes a third switch module controlled by the controller; The third switch module is used to control the direction of current between the low-voltage power supply input terminal and the low-voltage battery.

[0019] In some embodiments, the third switch module is connected between the second switch module and the first switch module.

[0020] In the technical solution of the embodiments of the present application, the third switch module is controlled by a controller, and the third switch module is connected between the second switch module and the first switch module. The controller can control the on / off states of the first switch module, the second switch module and the third switch module, and can control the low-voltage power input terminal to charge the low-voltage battery, or control at least one of the low-voltage power input terminal and the low-voltage battery to supply power to the low-voltage load input terminal for output, so that the third switch module controls the current direction between the low-voltage power input terminal and the low-voltage battery, and realizes integrated control of the power output of the battery management module and the low-voltage power distribution module.

[0021] In some embodiments, the low voltage load input includes a first low voltage load input and a second low voltage load input; The first low-voltage load input terminal and the second low-voltage load input terminal are respectively connected to a first terminal and a second terminal of the third switch module.

[0022] In the technical solution of the embodiment of the present application, the first low-voltage load input terminal and the second low-voltage load input terminal are respectively connected to the first terminal and the second terminal of the third switch module, and the controller can control the on / off states of the first switch module, the second switch module and the third switch module, and the third switch module controls the current direction between the low-voltage power supply input terminal and the low-voltage battery, thereby realizing integrated control of the power output of the battery management module and the low-voltage power distribution module.

[0023] In some embodiments, the low voltage power distribution module comprises: a fourth switch module connected between the first end of the third switch module and the first low-voltage load input end and controlled by the controller; The power supply further includes a fifth switch module connected to the second end of the third switch module and the second low-voltage load input end and controlled by the controller.

[0024] In the technical solution of the embodiments of the present application, a plurality of first low-voltage load input terminals are provided to respectively connect low-voltage loads of multiple paths, and a fourth switch module is provided between the first low-voltage load input terminal of each path and the second switch module, and the fourth switch module controls the power-up state of the corresponding first low-voltage load input terminal. A plurality of second low-voltage load input terminals are provided to respectively connect low-voltage loads of multiple paths, and a fifth switch module is provided between the second low-voltage load input terminal of each path and the third switch module, and the fifth switch module controls the power-up state of the corresponding second low-voltage load input terminal.

[0025] In some embodiments, the low voltage power distribution module and the battery management module are integrated on the same circuit board.

[0026] In the technical solution of the embodiments of the present application, the battery management module and the low-voltage power distribution module share the same controller, and therefore the battery management module and the low-voltage power distribution module multiplex the same controller, and the controller and some of its peripheral driving devices form the battery management module to manage the status of the low-voltage battery, and the controller and other peripheral driving devices form the low-voltage power distribution module to control the power distribution for the low-voltage load input to the low-voltage load input terminal, and the low-voltage power distribution module and the battery management module are integrated on the same circuit board, and the controller and its external driving devices that need to be controlled are integrated on the same circuit board, which is advantageous for simplifying the circuit and reducing the probability of wire harness failure.

[0027] In some embodiments, the vehicle power distribution integrated architecture further includes a vehicle heat sink, wherein the circuit board is installed on a first side of the vehicle heat sink, the low-voltage battery is installed on a second side of the vehicle heat sink, the second side of the vehicle heat sink faces the first side of the vehicle heat sink, and the vehicle heat sink is used to dissipate heat from the circuit board and the low-voltage battery.

[0028] In the technical solution of the embodiments of the present application, the low-voltage battery and the circuit board are respectively installed on both sides of the same vehicle heat sink. By sharing the same vehicle heat sink for the low-voltage battery and the circuit board, the heat dissipation efficiency of the vehicle heat sink can be improved and the volume of the vehicle can be reduced.

[0029] In some embodiments, there are at least two kernels of the controller.

[0030] In the technical solution of the embodiment of the present application, the controller has at least two kernels, and multiple functions of the controller can be assigned to multiple kernels to improve the processing efficiency of the controller.

[0031] In some embodiments, at least one kernel of the controller is used to process a sampling signal to obtain sampling data, and at least one kernel of the controller is used to generate control data based on the sampling data, and to output a corresponding control signal based on the control data to control an operating state of the low-voltage battery and / or control the distributed power of the low-voltage load.

[0032] In the technical solution of the embodiments of the present application, the controller includes at least two kernels, one or a part of which may be used to process a sampling signal to obtain corresponding sampling data, and another kernel or another part of which may be used to process the sampling data and obtain control data according to a preset calculation, and based on the control data, generate and output a control signal to a peripheral driving device, and control the working state of the driving device to control the working state of the low-voltage battery, and / or control the distributed power of a low-voltage load by controlling the working state of the driving device.

[0033] In some embodiments, the vehicle power distribution integration architecture comprises: and an SBC power supply module connected to the controller for supplying power to the controller.

[0034] In the technical solution of the embodiment of the present application, an SBC power supply module is integrated into the battery management module, and the SBC power supply module is used to supply power to the controller, and the power source of the SBC power supply module can be a low-voltage battery.

[0035] In some embodiments, the power input terminal of the SBC power supply module is connected to the low-voltage battery and the low-voltage power supply input terminal respectively, and the power output terminal of the SBC power supply module is connected to the controller.

[0036] In the technical solution of the embodiments of the present application, the power input terminal of the SBC power supply module can obtain power from a low-voltage battery or a low-voltage power supply input terminal, respectively. The voltage input from the low-voltage battery or the low-voltage power supply input terminal is converted into the power supply voltage of the controller, thereby achieving the purpose of powering the controller and avoiding the problem that the controller needs an additional wiring harness to obtain power from an external power source.

[0037] In some embodiments, the vehicle power distribution integration architecture comprises: Further comprising a sampling module for sampling voltages and / or currents of the sampling nodes of the low-voltage battery, the battery management module, and the low-voltage power distribution module to generate sampling signals; The controller is connected to the sampling module, and the controller is further used for controlling the working state of the low-voltage battery based on the sampling signal.

[0038] In the technical solution of the embodiments of the present application, a plurality of sampling nodes are installed in the low-voltage battery, the battery management module, and the low-voltage power distribution module, and sampling is performed on the voltages or currents of the plurality of sampling nodes to obtain sampling signals. The controller determines based on the received sampling signals whether the voltages or currents of the sampling nodes corresponding to the sampling signals meet the operating conditions of the current operating state, thereby controlling the operating states of the low-voltage battery and the low-voltage power distribution module. In this way, the low-voltage battery and the low-voltage power distribution module can adjust their operating states in real time based on the electrical parameters of the low-voltage battery, the battery management module, and the low-voltage power distribution module, thereby reducing the safety risks caused by circuit failures.

[0039] In some embodiments, the controller controls the multiple low-voltage load input terminals of the low-voltage power distribution module to power up in a time-sharing manner when the low-voltage load input terminal is powering up multiple power-consuming low-voltage loads.

[0040] In the technical solution of the embodiments of the present application, multiple low-voltage load input terminals of a low-voltage power distribution module can respectively input multiple power-consuming low-voltage loads. When multiple power-consuming low-voltage loads are input, the controller controls the multiple low-voltage load input terminals to power up in a time-division manner, thereby increasing the output current of the low-voltage power distribution module and avoiding the problem of the output current being too high due to the simultaneous power-up of multiple low-voltage load input terminals, which brings about safety risks.

[0041] In some embodiments, the vehicle power distribution integration architecture further includes AFE modules coupled to the low-voltage battery and the controller, respectively, for collecting information from the low-voltage battery and for interacting with the controller, the controller being coupled to the AFE modules via a non-multiplexed synchronous serial communication interface.

[0042] In the technical solution of the embodiment of the present application, the AFE module is simultaneously connected to the low-voltage battery and the controller, and the AFE module can collect information about the low-voltage battery and exchange information with the controller. The controller can be connected to the AFE module via a non-multiplexed synchronous serial communication interface to establish high-speed full-duplex communication between the controller and the AFE module, and perform data transmission of a set type via the data pin of the controller. For example, each communication module can correspond to one interaction function module without being affected by other pins or modules.

[0043] A second aspect of an embodiment of the present application further provides a vehicle management system including the vehicle power distribution integration architecture according to any one of the above embodiments.

[0044] A third aspect of an embodiment of the present application further provides a motor vehicle including the vehicle power distribution integration architecture according to any one of the above embodiments.

[0045] The above description is merely an outline of the technical solution of the present application. In order to make the technical solution of the present application more clearly understood and implemented according to the content of the specification, and to make the above and other objectives, features and advantages of the present application more clearly comprehensible, specific embodiments of the present application are given below. [Effects of the Invention]

[0046] In the technical solution of the embodiments of the present application, by integrating the vehicle power distribution integrated architecture described in any one of the above embodiments into a vehicle, the low-voltage power distribution module and the battery management module can be integrated into one structural component, and the low-voltage power distribution module and the battery management module use the same multiplexed controller, optimizing the electrical architecture of the vehicle management system, thereby simplifying the related components of the finished vehicle and significantly reducing the cost of the finished vehicle. [Brief explanation of the drawings]

[0047] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of the preferred embodiments. The drawings are used only to illustrate the preferred embodiments and are not to be considered limiting of the present application. And throughout the drawings, like elements are represented by like reference numerals. In the drawings, [Figure 1] FIG. 1 is a first structural schematic diagram of a vehicle power distribution integration architecture according to an embodiment of the present application; [Figure 2] FIG. 2 is a second structural schematic diagram of a vehicle power distribution integration architecture according to an embodiment of the present application; [Figure 3] FIG. 2 is a third structural schematic diagram of a vehicle power distribution integration architecture according to an embodiment of the present application. [Figure 4] FIG. 10 is a fourth structural schematic diagram of a vehicle power distribution integration architecture according to an embodiment of the present application. [Figure 5] FIG. 10 is a fifth structural schematic diagram of a vehicle power distribution integration architecture according to an embodiment of the present application. [Figure 6] FIG. 10 is a sixth structural schematic diagram of a vehicle power distribution integration architecture according to an embodiment of the present application. [Figure 7] FIG. 10 is a structural schematic diagram of a seventh type of vehicle power distribution integration architecture according to an embodiment of the present application. [Figure 8] FIG. 10 is a structural schematic diagram of an eighth type of vehicle power distribution integration architecture according to an embodiment of the present application. [Figure 9] FIG. 10 is a structural schematic diagram of a ninth type of vehicle power distribution integration architecture according to an embodiment of the present application. [Figure 10] FIG. 10 is a structural schematic diagram of a vehicle power distribution integration architecture according to an embodiment of the present application. [Figure 11] FIG. 16 is a structural schematic diagram of a eleventh vehicle power distribution integration architecture according to an embodiment of the present application. [Figure 12] FIG. 12 is a structural schematic diagram of a twelfth type of vehicle power distribution integration architecture according to an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0048] The following detailed description will be given of the embodiments of the technical solution of the present application in conjunction with the drawings. The following embodiments are only used to more clearly explain the technical solution of the present application, and are merely examples, which do not limit the scope of protection of the present application.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art of this application, and the terms used herein are only for describing specific embodiments and are not intended to limit this application. The terms "comprises" and "having" and any variations thereof in the specification and claims of this application and the description of the drawings above are intended to cover a non-exclusive "comprise."

[0050] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only intended to distinguish between different objects, and should not be understood as expressing or suggesting relative importance, or as implicitly indicating the number, specific order, or primary / subordinate relationship of the indicated technical features. In the description of the embodiments of the present application, unless otherwise specifically and clearly limited, "plurality" means two or more.

[0051] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The phrase "second connection port" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive from other embodiments. Those skilled in the art can explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0052] In the description of the embodiments of this application, the term "and / or" merely describes the relationship between related objects and indicates that three relationships may exist. For example, A and / or B may represent three cases: A alone, a combination of A and B, and B alone. In addition, the character " / " in this specification generally indicates that the related objects before and after it are in an "or" relationship.

[0053] In describing embodiments of the present application, the term "multiple frames" refers to two or more (including two).

[0054] In describing the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" are orientations or positional relationships shown in the drawings, and are intended merely to facilitate and simplify the description of the embodiments of the present application. They do not indicate or imply that the devices or elements referred to have a specific orientation or are required to be constructed and operated in a specific orientation, and therefore should not be understood as limiting the embodiments of the present application.

[0055] In related technologies, body low-voltage power distribution generally employs discrete low-voltage lithium-ion battery technology, for example, a fuse box based on a lithium-ion battery is configured to realize primary power distribution for low-voltage loads within the vehicle, and the fuse box generally employs devices such as relays and fuses as driving and protective devices. However, current vehicle power supply generally employs zone controllers to control each functional module within the vehicle, and each functional module requires an independent controller to process data and control the devices within the functional module. Similarly, each functional module further requires an independent SBC module to power the controller, and an independent AFE module to establish communication between the control module and a host computer. This not only requires a large number of wire harnesses for connection, but also results in problems such as large size and difficult maintenance.

[0056] In order to solve the above technical problems, an embodiment of the present application provides a vehicle power distribution integrated architecture, which includes a low-voltage battery 300, a battery management module 100, and a low-voltage power distribution module 200. The low-voltage battery 300 is electrically connected to the low-voltage power distribution module 200, and a low-voltage load input terminal 210 for inputting low-voltage loads is disposed in the low-voltage power distribution module 200. The battery management module 100 and the low-voltage power distribution module 200 share the same controller 120, which integrates the function of managing the low-voltage battery 300 and the function of controlling power distribution for the low-voltage loads.

[0057] In this embodiment, a low-voltage load input terminal 210 for inputting a low-voltage load is arranged in the low-voltage power distribution module 200, the low-voltage power distribution module 200 is connected to the low-voltage battery 300, and the low-voltage power distribution module 200 configures the power output of the low-voltage battery 300, and the battery management module 100 is used to manage the low-voltage battery 300, and the battery management module 100 and the low-voltage power distribution module 200 share the same controller 120. At this time, the battery management module 100 and the low-voltage power distribution module 200 include the same controller 120, and the controller By integrating the function of managing the low-voltage battery 300 and the function of controlling power distribution for low-voltage loads into the controller 120, the control modules of the battery management scheme and the low-voltage power distribution scheme in the low-voltage power electronics field are creatively integrated into the same controller 120, and the control circuit is simplified by multiplexing some devices, so that the design, debugging and implementation of the entire vehicle circuit are all simplified, and compared to setting up the battery management scheme and the low-voltage power distribution scheme independently, it has the advantages of lower cost, simpler architecture and lower failure rate.

[0058] In some specific application embodiments, in a vehicle low-voltage power distribution system, the controller 120 configures some power devices and the battery management module 100, and the controller 120 configures another part of power devices and the low-voltage power distribution module 200, thereby integrating the entire vehicle low-voltage power distribution system, realizing the control and management of the vehicle low-voltage power distribution system through the same controller 120, optimizing the energy management of the entire low-voltage power distribution system, and improving the electric energy utilization efficiency and power supply stability of the low-voltage power distribution system of the completed vehicle.

[0059] In some specific application embodiments, the controller 120 and some power devices are used to form the battery management module 100, and the controller 120 and other power devices are used to form the low-voltage power distribution module 200, so that a large fuse box is not required. Furthermore, the battery management module 100, the low-voltage power distribution module 200, and the low-voltage battery 300 can be integrated into a low-voltage battery assembly, which not only reduces the volume of the vehicle low-voltage power distribution system, but also shortens the wiring harness distance between the low-voltage battery 300 and the battery management module 100, and between the low-voltage battery 300 and the low-voltage power distribution module 200, thereby reducing the probability of failure in the power supply and communication wiring harnesses in the vehicle low-voltage power distribution system.

[0060] In some embodiments, as shown in FIG. 2 , the vehicle power distribution integrated architecture in this embodiment further includes a low-voltage power supply input terminal 400, which is electrically connected to the low-voltage power distribution module 200, and the low-voltage power supply input terminal 400 may be used to input the low-voltage power supply converted by the power battery, and allocate power to the low-voltage power supply input by the low-voltage power distribution module 200.

[0061] In this embodiment, the low-voltage power input terminal 400 is used to input the low-voltage power obtained by converting the voltage of the power battery, and the low-voltage power distribution module 200 allocates the low-voltage power to the low-voltage load input terminal 210. For example, in the case of multiple low-voltage load input terminals 210, power can be allocated according to the power demand of the low-voltage load input to each low-voltage load input terminal 210, and power can also be allocated based on the operating status of the input low-voltage load, thereby realizing dynamic adjustment of the output power of the low-voltage power supply and achieving the purpose of protecting the battery and the low-voltage load.

[0062] In some embodiments, as shown in FIG. 3 , the battery management module 100 includes a first switch module 101, which is used to manage the charging and discharging process of the low-voltage battery 300 under the control of the controller 120.

[0063] In this embodiment, the first switch module 101 is controlled by the controller 120, and the controller 120 controls the on / off state of the first switch module 101 to perform the charging and discharging operations of the low-voltage battery 300. This allows the low-voltage power distribution module 200 to multiplex the first switch module 101 as its power distribution management unit, eliminating the need to install a power distribution management device in the low-voltage power distribution module 200 and reducing the wire harness between the low-voltage power distribution module 200 and the battery management module 100, thereby reducing the safety risk caused by short-circuiting of the wire harness between different circuit boards.

[0064] In some embodiments, the low-voltage battery 300 is electrically connected to the low-voltage power distribution module 200 via the first switch module 101 .

[0065] In this embodiment, the first switch module 101 is connected between the low-voltage battery 300 and the low-voltage power distribution module 200, and the low-voltage battery 300 is electrically connected to the low-voltage power distribution module 200 via the first switch module 101. The first switch module 101 is controlled by the controller 120, which controls the on / off state of the first switch module 101 to control the on / off state between the low-voltage battery 300 and the low-voltage power distribution module 200. The first switch module 101 controls the power distribution output of the low-voltage power distribution module 200. This allows the low-voltage power distribution module 200 and the battery management module 100 to be multiplexed through the first switch module 101, thereby reducing the wire harness between the low-voltage power distribution module 200 and the battery management module 100 and reducing safety risks caused by short-circuiting of the wire harness between different circuit boards.

[0066] In some embodiments, as shown in FIG. 4 , the low-voltage power distribution module 200 further includes a second switch module 202 controlled by the controller 120, and the second switch module 202 is used to control the input state of the low-voltage power supply input terminal 400.

[0067] In this embodiment, the second switch module 202 is controlled by the controller 120 and can control the input state of the low-voltage load input terminal 210 to control the power distribution output of the low-voltage power distribution module 200, for example, by controlling the low-voltage power input terminal 400 to charge the low-voltage battery 300, or by controlling at least one of the low-voltage power input terminal 400 and the low-voltage battery 300 to supply power to the low-voltage load input terminal 210 for output, thereby realizing integrated control of the battery management module 100 and the low-voltage power distribution module 200.

[0068] In some embodiments, the second switch module 202 is connected between the low voltage power supply input 400 and the low voltage load input 210 .

[0069] In some embodiments, the second switch module 202 is connected between the low voltage power supply input 400 and the battery management module 100 .

[0070] In this embodiment, the second switch module 202 is controlled by the controller 120 and can control the input state of the low-voltage power input terminal 400 to control the power distribution output of the low-voltage power distribution module 200, for example, by controlling the low-voltage power input terminal 400 to charge the low-voltage battery 300, or by controlling at least one of the low-voltage power input terminal 400 and the low-voltage battery 300 to supply power to the low-voltage load input terminal 210 for output, thereby realizing integrated control of the battery management module 100 and the low-voltage power distribution module 200.

[0071] In some embodiments, as shown in FIG. 4 , the low-voltage power distribution module 200 further includes a third switch module 203, which is controlled by the controller 120, and the third switch module 203 is used to control the current direction between the low-voltage power supply input terminal 400 and the low-voltage battery 300 under the control of the controller 120.

[0072] In some embodiments, the third switch module 203 is connected between the second switch module 202 and the first switch module 101 .

[0073] In this embodiment, the third switch module 203 is controlled by the controller 120. The third switch module 203 is connected between the second switch module 202 and the first switch module 101. The controller 120 can control the on / off states of the first switch module 101, the second switch module 202, and the third switch module 203, and can control the low-voltage power input terminal 400 to charge the low-voltage battery 300, or control at least one of the low-voltage power input terminal 400 and the low-voltage battery 300 to supply power to the low-voltage load input terminal 210 for output. This allows the third switch module 203 to control the current direction between the low-voltage power input terminal 400 and the low-voltage battery 300, and realize integrated control of the power output of the battery management module 100 and the low-voltage power distribution module 200.

[0074] In some embodiments, as shown in FIG. 5 , the low-voltage load input terminal 210 includes a first low-voltage load input terminal 211 and a second low-voltage load input terminal 212, and the first low-voltage load input terminal 211 and the second low-voltage load input terminal 212 are respectively connected to a first terminal and a second terminal of the third switch module 203.

[0075] In this embodiment, the first low-voltage load input terminal 211 and the second low-voltage load input terminal 212 are respectively connected to the first terminal and the second terminal of the third switch module 203, and the controller 120 can control the on / off states of the first switch module 101, the second switch module 202 and the third switch module 203, and the third switch module 203 controls the current direction between the low-voltage power supply input terminal 400 and the low-voltage battery 300, thereby realizing integrated control of the power output of the battery management module 100 and the low-voltage power distribution module 200.

[0076] In some embodiments, as shown in FIG. 5 , the low-voltage power distribution module 200 further includes a fourth switch module 204 and a fifth switch module 205, where the fourth switch module 204 is connected between the first end of the third switch module 203 and the first low-voltage load input end 211 and the fourth switch module 204 is controlled by the controller 120, and the fifth switch module 205 is connected to the second end of the third switch module 203 and the second low-voltage load input end 212 and the fifth switch module 205 is controlled by the controller 120.

[0077] In this embodiment, the first low-voltage load input terminal 211 is connected to the first terminal of the third switch module 203 via the fourth switch module 204, and the second low-voltage load input terminal 212 is connected to the second terminal of the third switch module 203 via the fifth switch module 205. The fourth switch module 204 controls the power-up state of the corresponding first low-voltage load input terminal 211, and the fifth switch module 205 controls the power-up state of the corresponding second low-voltage load input terminal 212, thereby achieving independent control and management for each low-voltage load.

[0078] In some embodiments, the fourth switch module 204 and the fifth switch module 205 are both MOS devices.

[0079] In some embodiments, the first low-voltage load input terminal 211 and the fourth switch module 204 are multiple, and the first low-voltage load input terminal 211 and the fourth switch module 204 are installed in a one-to-one correspondence; the second low-voltage load input terminal 212 and the fifth switch module 205 are multiple, and the second low-voltage load input terminal 212 and the fifth switch module 205 are installed in a one-to-one correspondence.

[0080] In this embodiment, a plurality of first low-voltage load input terminals 211 are installed to respectively connect low-voltage loads for a plurality of paths, and a fourth switch module 204 is installed between the first low-voltage load input terminal 211 of each path and the second switch module 202, and the fourth switch module 204 controls the power-up state of the corresponding first low-voltage load input terminal 211. A plurality of second low-voltage load input terminals 212 are installed to respectively connect low-voltage loads for a plurality of paths, and a fifth switch module 205 is installed between the second low-voltage load input terminal 212 of each path and the third switch module 203, and the fifth switch module 205 controls the power-up state of the corresponding second low-voltage load input terminal 212, thereby achieving independent control and management for each low-voltage load.

[0081] In one embodiment, as shown in FIG. 6, the low-voltage battery 300 may be composed of a plurality of battery units BAT.

[0082] In one embodiment, as shown in FIG. 6 , in the vehicle power distribution integrated architecture 800 of this embodiment, the first switch module 101 includes a first switch transistor Q1, which may be a bidirectional switch device, a first end of the first switch transistor Q1 is connected to the low-voltage battery 300, a second end of the first switch transistor Q1 is connected to the second end of the third switch module 203, and two control ends of the first switch transistor Q1 are both connected to the controller 120. The bidirectional switch device is controlled by the controller 120 to control the charging and discharging of the low-voltage battery 300. The second end of the third switch module 203 is connected to the low-voltage battery 300 via the first switch module 101. When the first switch module 101 is in a first conducting condition, the low-voltage battery 300 supplies power to the first low-voltage load input terminal 211 or the second low-voltage load input terminal 212 via the first switch module 101. At this time, the low-voltage power supply input terminal 400 cannot charge the low-voltage battery 300.

[0083] When the first switch module 101 is in the second conductive condition, the low-voltage power supply input terminal 400 charges the low-voltage battery 300 through the first switch module 101 .

[0084] When the first switch module 101 is in a cutoff condition, the low voltage battery 300 is cut off from the third switch module 203 and the fifth switch module 205 .

[0085] In some embodiments, the first switch transistor Q1 may be a MOS device.

[0086] 6 , the third switch module 203 includes a third switch transistor Q3, a first end and a second end of which are respectively the first end and the second end of the third switch module 203, and the third switch transistor Q3 may be a bidirectional switch device, and two control ends of the third switch transistor Q3 are both connected to the controller 120. When the first switch module 101 is in a first conductive condition and the third switch module 203 is in a first conductive condition, the low-voltage battery 300 supplies power to the first low-voltage load input terminal 211 through the first switch module 101 and the third switch module 203. At this time, the low-voltage power supply input terminal 400 can supply power to the first low-voltage load input terminal 211 through the second switch module 202, but the current output from the low-voltage power supply input terminal 400 cannot pass through the third switch module 203.

[0087] In one embodiment, a high-power low-voltage load may be input to the first low-voltage load input terminal 211. Since the battery management module 100 and the low-voltage power distribution module 200 are integrated on the same circuit board 123, when the controller 120 detects that the output power of the low-voltage power input terminal 400 cannot meet the power demand of the first low-voltage load input terminal 211, it may control the first switch module 101 and the third switch module 203 to be in a first conductive condition, thereby allowing the low-voltage battery 300 to perform power compensation for the high-power low-voltage load input to the first low-voltage load input terminal 211, thereby avoiding the problem of the input low-voltage load's power being too large and causing unstable power supply.

[0088] In some embodiments, the third switch transistor Q3 may be a MOS device.

[0089] In some embodiments, as shown in FIG. 6 , the second switch module 202 includes a second switch transistor Q2, a first end of the second switch transistor Q2 is connected to the low-voltage power supply input terminal 400, a second end of the second switch transistor Q2 is connected to the first low-voltage load input terminal 211 via the fourth switch module 204, or a second end of the second switch transistor Q2 is connected to the first end of the third switch module 203, and a control end of the second switch transistor Q2 is connected to the controller 120, and the second switch transistor Q2 is turned on or off according to a control signal sent from the controller 120.

[0090] In some embodiments, the second switch transistor Q2 may be a MOS device.

[0091] In some embodiments, as shown in FIG. 6 , the fourth switch module 204 includes a plurality of switch devices (switch device Q1p, ..., switch device Qnp), and the first low-voltage load input terminal 211 includes a plurality of load input terminals (load input terminal L1p, ..., load input terminal Lnp), and the plurality of load input terminals (load input terminal L1p, ..., load input terminal Lnp) are respectively connected to the first terminal of the third switch module 203 via a plurality of switch devices (switch device Q1p, ..., switch device Qnp), and the plurality of switch devices (switch device Q1p, ..., switch device Qnp) are all controlled by the controller 120, and the on / off state of each switch device is controlled by the controller 120 to achieve the purpose of power distribution management of the low-voltage loads input to each load input terminal.

[0092] In some embodiments, as shown in FIG. 6 , the fifth switch module 205 includes a plurality of switch devices (switch device Q1s, ..., switch device Qns), and the second low-voltage load input terminal 212 includes a plurality of load input terminals (load input terminal L1s, ..., load input terminal Lns), which are respectively connected to the second terminal of the third switch module 203 via a plurality of switch devices (switch device Q1s, ..., switch device Qns), and the plurality of switch devices (switch device Q1s, ..., switch device Qns) are all controlled by the controller 120, which controls the on / off state of each switch device to achieve the purpose of power distribution management of the low-voltage loads input to each load input terminal.

[0093] In some embodiments, switch device Q1s, ..., switch device Qns, switch device Q1s, ..., switch device Qns are all MOS devices.

[0094] In some embodiments, the first switch transistor Q1, the second switch transistor Q2, the third switch transistor Q3, the switch devices Q1s, ..., and Qns are all MOS devices, and the first switch transistor Q1, the second switch transistor Q2, the third switch transistor Q3, the switch devices Q1s, ..., and Qns and the controller 120 are integrated on the same circuit board, reducing the communication wiring harness installed between the independent low-voltage power distribution system and the independent thermal management system, eliminating the need to install a separate controller and associated SBC power supply chip, saving chip usage, and reducing the probability of failure in the power supply and communication wiring harness in the vehicle low-voltage power distribution system.

[0095] In some embodiments, the low voltage power distribution module 200 and the battery management module 100 are integrated on the same circuit board 123, as shown in FIG.

[0096] In this embodiment, the battery management module 100 and the low-voltage power distribution module 200 share the same controller 120, and therefore the battery management module 100 and the low-voltage power distribution module 200 multiplex the same controller 120. The battery management module 100 is configured using the controller 120 and some of its peripheral driving devices to manage the status of the low-voltage battery, and the low-voltage power distribution module 200 is configured using the controller 120 and other peripheral driving devices to control the power distribution for the low-voltage load input to the low-voltage load input terminal 210. The low-voltage power distribution module 200 and the battery management module 100 are integrated onto the same circuit board 123, and the controller 120 and the external driving devices that it needs to control are integrated onto the same circuit board. This avoids the problem of the conventional battery management module 100 and low-voltage power distribution module 200 being installed independently, which requires a large number of wire harnesses to connect the circuit boards, and by simplifying the circuitry, the probability of wire harness failure is reduced.

[0097] In some embodiments, the external pins of the controller 120 can not only configure its peripheral driving devices and the low-voltage power distribution module 200 and the battery management module 100, but also can be expanded, for example, by welding the external expansion pins to an expansion circuit on the circuit board 123 and connecting the expansion circuit on the circuit board 123 through multiple bonding pads, thereby customizing and multiplexing functions for the external expansion pins of the controller 120 and achieving the purpose of customizing vehicle functions.

[0098] In some embodiments, as shown in FIG. 8 , the vehicle power distribution integrated architecture further includes a vehicle heat sink 310, where the circuit board 123 is installed on a first side of the vehicle heat sink 310, the low-voltage battery 300 is installed on a second side of the vehicle heat sink 310, the second side of the vehicle heat sink 310 faces the first side of the vehicle heat sink 310, and the vehicle heat sink 310 is used to dissipate heat from the circuit board 123 and the low-voltage battery 300.

[0099] In this embodiment, the low-voltage battery 300 and the circuit board 123 are installed on either side of the same vehicle heat sink 310. By sharing the same vehicle heat sink 310 for the low-voltage battery 300 and the circuit board 123, the heat dissipation efficiency of the vehicle heat sink 310 can be improved and the volume of the vehicle can be reduced.

[0100] In some embodiments, as shown in FIG. 9 , the low-voltage battery assembly includes a product bottom cover 125 and a product top cover 126, the low-voltage battery 300 is disposed in the product bottom cover 125, the product bottom cover 125 has a concave structure, the product bottom cover 125 and the product top cover 126 form an accommodating cavity, the circuit board 123 and the vehicle heat sink 310 are disposed on the low-voltage battery 300, and the circuit board 123 and the vehicle heat sink 310 are fixed by an attachment structure, where the distance between the circuit board 123, the vehicle heat sink 310 and the low-voltage battery 300 may be set based on the heat dissipation demand and the requirements of the wiring harness. In this embodiment, the battery management module 100, the low-voltage power distribution module 200, and the low-voltage battery 300 are integrated into a low-voltage battery assembly. Heat dissipation fins are installed on the surface of the circuit board 123 closest to the low-voltage battery 300. The side of the circuit board 123 closest to the product lid 126 is used for welding the controller 120 and related power devices in the battery management module 100 and the low-voltage power distribution module 200. The shape of the product lid 126 is determined according to the shape of the controller 120 and related power devices, so that the shapes of the battery management module 100 and the low-voltage power distribution module 200 match the shape of the product lid 126. This not only reduces the volume of the vehicle low-voltage power distribution system, but also shortens the wiring harness distance between the low-voltage battery 300 and the battery management module 100, and the wiring harness distance between the low-voltage battery 300 and the low-voltage power distribution module 200, thereby reducing the probability of failure of the power supply and communication wiring harnesses in the vehicle low-voltage power distribution system.

[0101] In some embodiments, the vehicle heat sink 310 may be a water-cooled plate, which is installed between the circuit board 123 and the low-voltage battery 300. After the vehicle starts, the water-cooled plate absorbs the heat emitted from the low-voltage battery 300 and the circuit board 123, thereby improving the utilization efficiency of the vehicle's interior space and reducing the size and volume of the vehicle management system.

[0102] In some embodiments, the controller 120 has at least two kernels.

[0103] In this embodiment, the controller 120 has at least two kernels, and multiple functions of the controller 120 can be assigned to multiple kernels, thereby improving the processing efficiency of the controller 120.

[0104] In some embodiments, at least one kernel of the controller 120 is used to process the sampling signal to obtain sampling data, and at least one kernel of the controller 120 is used to generate control data based on the sampling data, and output a corresponding control signal based on the control data to control the operating state of the low-voltage battery 300.

[0105] In this embodiment, the controller 120 includes at least two kernels, one or a part of which may be used to process the sampling signal to obtain corresponding sampling data, and another kernel or a part of which may be used to process the sampling data and obtain control data according to a preset calculation, and based on the control data, generate and output a control signal to a peripheral driving device, thereby controlling the operating state of the driving device, and thereby controlling the operating state of the low-voltage battery 300.

[0106] In some embodiments, at least one kernel of the controller 120 is used to process the sampling signal to obtain sampling data, and the at least one kernel of the controller 120 is used to generate control data based on the sampling data, and to output corresponding control signals based on the control data to control distributed power of low-voltage loads.

[0107] In this embodiment, the controller 120 includes at least two kernels, one or a part of which may be used to process a sampling signal to obtain corresponding sampling data, and another kernel or a part of which may be used to process the sampling data and obtain control data according to a preset calculation, and based on the control data, generate and output control signals to peripheral driving devices, and control the operating states of the driving devices, thereby controlling the distributed power of low-voltage loads.

[0108] In some embodiments, as shown in FIG. 10 , the vehicle power distribution integration architecture includes an SBC power supply module 510, which is connected to the controller 120, and the SBC power supply module 510 is used to supply power to the controller 120.

[0109] In this embodiment, the SBC power supply module 510 in the vehicle power distribution integrated architecture may be integrated into the battery management module 100 or the low-voltage power distribution module 200. The power source of the SBC power supply module 510 may be the low-voltage battery 300. The battery management module 100 and the low-voltage power distribution module 200 multiplex the SBC power supply module 510, thereby reducing the number of chips required in the vehicle power distribution integrated architecture, reducing the use of wire harnesses within the vehicle power distribution integrated architecture, and improving the stability of the circuit.

[0110] In some embodiments, the power input terminal of the SBC power supply module 510 is connected to the low-voltage battery 300 and the low-voltage power supply input terminal 400 respectively, and the power output terminal of the SBC power supply module 510 is connected to the controller 120 .

[0111] In this embodiment, the power input terminal of the SBC power supply module 510 can obtain power from the low-voltage battery 300 or the low-voltage power supply input terminal 400, respectively. The voltage input from the low-voltage battery 300 or the low-voltage power supply input terminal 400 is converted into the power supply voltage of the controller 120, thereby achieving the purpose of powering the controller 120 and avoiding the problem of the controller 120 needing an additional wiring harness to obtain power from an external power source.

[0112] In some embodiments, the power input terminal of the SBC power supply module 510 may be connected to the low-voltage battery 300 and the low-voltage power supply input terminal 400 simultaneously. A one-path backflow prevention circuit is installed between the power input terminal of the SBC power supply module 510 and the low-voltage battery 300, and a one-path backflow prevention circuit is installed between the power input terminal of the SBC power supply module 510 and the low-voltage power supply input terminal 400 to prevent backflow of current that occurs when the low-voltage battery 300 and the low-voltage power supply input terminal 400 output current, thereby improving the safety of the power supply circuit.

[0113] The power management chip (System Base Chip, SBC) provides the operating voltage for the controller 120 and its peripheral devices. Without power supply from the SBC, the peripheral devices of the controller cannot operate. In this embodiment, the controller 120 configures a battery management module 100 with some power devices, and the controller 120 configures a low-voltage power distribution module 200 with other power devices. The controller 120 integrates the functions of managing the low-voltage battery 300 and controlling power distribution for low-voltage loads. The SBC power supply module 510 outputs voltages over multiple paths based on the input power source, thereby supplying power to the controller 120 and its peripheral power devices. Only one SBC chip can supply power to the elements of the low-voltage power distribution system of a complete vehicle, which not only saves SBC chips but also improves the low-voltage power distribution system. By optimizing the system's power management scheme, the problem of unstable performance caused by mismatched power supply voltages that exists in the independent SBC scheme can be reduced, and the operation consistency of power devices and chips in the low-voltage power distribution system can be improved. For example, SBC power supply module 510 can output one path of 3.3V independent power to power controller 120, one path of 3.3V independent power to power analog chips on circuit board 123, and one path of 5V independent power to power communications chips on circuit board 123. The input power supplies of SBC power supply module 510 are consistent, and the consistency of its output voltages can be improved.

[0114] In some embodiments, as shown in FIG. 11 , the vehicle power distribution integrated architecture further includes a sampling module 520, which is used to sample voltages at sampling nodes of the low-voltage battery 300, the battery management module 100, and the low-voltage power distribution module 200 and generate a sampling signal, and the controller 120 is connected to the sampling module 520, which is further used to control the operating state of the low-voltage battery 300 based on the sampling signal.

[0115] In this embodiment, multiple sampling nodes are installed in the low-voltage battery 300, the battery management module 100, and the low-voltage power distribution module 200, and sampling is performed on the voltages of the multiple sampling nodes to obtain sampling signals. The controller 120 controls the working state of the low-voltage battery 300 by determining based on the received sampling signals whether the voltages of the sampling nodes corresponding to the sampling signals meet the working conditions of the current working state. This allows the low-voltage battery 300 to adjust its working state in real time based on the electrical parameters of the low-voltage power distribution module 200 and the low-voltage battery 300, thereby reducing safety risks caused by circuit failures.

[0116] In some embodiments, the sampling module 520 is used to sample currents at sampling nodes of the low-voltage battery 300, the battery management module 100, and the low-voltage power distribution module 200, and generate a sampling signal, and the controller 120 is further used to control the operating state of the low-voltage battery 300 based on the sampling signal.

[0117] In this embodiment, multiple sampling nodes are installed in the low-voltage battery 300, the battery management module 100, and the low-voltage power distribution module 200, and sampling is performed on the currents of the multiple sampling nodes to obtain sampling signals. The controller 120 controls the working state of the low-voltage battery 300 by determining based on the received sampling signals whether the current of the sampling node corresponding to the sampling signal meets the working conditions of the current working state. In this way, the low-voltage battery 300 can adjust the working state of the low-voltage battery 300 in real time based on the electrical parameters of the low-voltage power distribution module 200 and the low-voltage battery 300, thereby reducing the safety risks caused by circuit failure.

[0118] In some embodiments, the low-voltage power distribution module 200 and the battery management module 100 are integrated on the same circuit board 123, and the low-voltage power distribution module 200 is connected to the battery management module 100, and the output current can be sampled by simply sampling the common node between the low-voltage power distribution module 200 and the battery management module 100, thereby saving one current sampling chip.

[0119] In some embodiments, the sampling module 520 is used to perform current sampling and voltage sampling on sampling nodes of the low-voltage battery 300, the battery management module 100, and the low-voltage power distribution module 200, and generate sampling signals, and the controller 120 is further used to control the operating state of the low-voltage battery 300 based on the sampling signals.

[0120] In this embodiment, multiple sampling nodes are installed in the low-voltage battery 300, the battery management module 100, and the low-voltage power distribution module 200, and sampling is performed on the voltages or currents of the multiple sampling nodes to obtain sampling signals. The controller 120 controls the working state of the low-voltage battery 300 by determining based on the received sampling signals whether the voltage or current of the sampling node corresponding to the sampling signal meets the working conditions of the current working state, so that the low-voltage battery 300 can adjust the working state of the low-voltage battery 300 in real time based on the electrical parameters of the low-voltage power distribution module 200 and the low-voltage battery 300, thereby reducing the safety risks caused by circuit failure or failure of the low-voltage battery 300.

[0121] In some embodiments, the sampling module 520 may further sample the temperatures of multiple sampling nodes installed in the low-voltage battery 300, the battery management module 100, and the low-voltage power distribution module 200 to obtain corresponding sampling signals, and the controller 120 controls the operating state of the low-voltage battery 300 by determining based on the received sampling signals whether the temperatures of the sampling nodes corresponding to the sampling signals meet the operating conditions of the current operating state, so that the low-voltage battery can adjust the operating state of the low-voltage battery 300 in real time based on the electrical parameters of the low-voltage power distribution module 200 and the low-voltage battery 300, thereby reducing the safety risks caused by circuit failure.

[0122] In some embodiments, the controller 120 includes at least two kernels. After the battery management module 100 and the low-voltage power distribution module 200 are multiplexed into the same controller 120, the data collected by the sampling module 520 can be directly output to the controller 120 and processed in a unified manner by the controller 120. This eliminates the need for a higher-level processor to send messages via the CAN bus, and reduces the risk of information loss due to message failure without being affected by external factors.

[0123] In some embodiments, the controller 120 is further used to control the operating state of the low-voltage power distribution module 200 based on the sampled signal.

[0124] In this embodiment, multiple sampling nodes are installed in the low-voltage battery 300, the battery management module 100, and the low-voltage power distribution module 200, and sampling is performed on the voltages or currents of the multiple sampling nodes to obtain sampling signals. The controller 120 controls the working state of the low-voltage battery 300 by determining based on the received sampling signals whether the voltage or current of the sampling node corresponding to the sampling signal meets the working conditions of the current working state. This allows the low-voltage battery 300 to adjust the working state of the low-voltage power distribution module 200 in real time based on the electrical parameters of the low-voltage battery 300 and the low-voltage power distribution module 200, thereby reducing the safety risks caused by circuit failure or failure of the low-voltage battery 300.

[0125] In some embodiments, the controller 120 controls the multiple low-voltage load inputs 210 of the low-voltage power distribution module 200 to power up in a time-sharing manner when the low-voltage load inputs 210 are powering multiple power-consuming low-voltage loads.

[0126] In this embodiment, the multiple low-voltage load input terminals of the low-voltage power distribution module 200 can respectively input multiple power-consuming low-voltage loads. When multiple power-consuming low-voltage loads are input, the controller 120 controls the multiple low-voltage load input terminals to power up in a time-division manner, thereby increasing the output current of the low-voltage power distribution module 200 and avoiding the problem of the output current being too high due to the simultaneous power-up of multiple low-voltage load input terminals 210, which poses a safety risk.

[0127] In some embodiments, as shown in FIG. 12 , the vehicle power distribution integration architecture further includes an AFE module 530, which is connected to the low-voltage battery 300 and the controller 120, respectively, and which is used to collect information from the low-voltage battery 300 and to interact with the controller 120.

[0128] In this embodiment, the AFE module 530 is connected to the low-voltage battery 300 and the controller 120 at the same time, and the AFE module 530 can collect information from the low-voltage battery 300 and exchange information with the controller 120; In some embodiments, the controller 120 is connected to the AFE module 530 via a non-multiplexed synchronous serial communication interface.

[0129] In this embodiment, the controller 120 is connected to the AFE module 530 via a non-multiplexed synchronous serial communication interface, and high-speed full-duplex communication may be established between the controller 120 and the AFE module 530, and data transmission of a set type may be performed on the data pins of the controller 120. For example, each communication module may correspond to one interaction function module without being affected by other pins or modules.

[0130] In some embodiments, the output voltage of the low voltage battery 300 ranges from 12V to 72V.

[0131] In some embodiments, low voltage battery 300 comprises a 12 volt lithium ion or sodium ion battery, or other rechargeable battery.

[0132] In some embodiments, low voltage battery 300 comprises a 24 volt lithium ion or sodium ion battery, or other rechargeable battery.

[0133] In some embodiments, low voltage battery 300 comprises a 48 volt lithium ion or sodium ion battery, or other rechargeable battery.

[0134] In some embodiments, low voltage battery 300 includes a 72V lithium ion or sodium ion battery, or other rechargeable battery.

[0135] In this embodiment, the vehicle power distribution integrated architecture in the embodiment of the present application may be applied to gasoline vehicles and new energy vehicles, where the output voltage of the on-board low-voltage battery is 72V or less.

[0136] An embodiment of the present application further provides a vehicle management system including the vehicle power distribution integration architecture described in any one of the above embodiments.

[0137] The vehicle management system in this embodiment is not limited to the field of passenger cars or commercial vehicles, but may also be applied to low-voltage batteries installed in gasoline vehicles and new energy vehicles.

[0138] An embodiment of the present application further provides a motor vehicle including the vehicle power distribution integration architecture described in any one of the above embodiments.

[0139] In this embodiment, by integrating the vehicle power distribution integrated architecture described in any one of the above embodiments into a vehicle, the low-voltage power distribution module and the battery management module can be integrated into one structural component, and the low-voltage power distribution module and the battery management module multiplex the same controller, optimizing the electrical architecture of the vehicle management system, thereby simplifying the related components of the finished vehicle and significantly reducing the cost of the finished vehicle.

[0140] As will be apparent to those skilled in the art, the above-described division of each functional unit and module has been described as an example for convenience and brevity. In actual applications, the above-described functional allocation may be completed by different functional units or modules as needed, i.e., the internal structure of the device may be divided into different functional units or modules to complete all or part of the above-described functions. The functional units and modules in the embodiments may be integrated into a single processing unit, each unit may exist physically independently, or two or more units may be integrated into a single unit. Furthermore, the specific names of the functional units and modules are merely for convenience of division and are not intended to limit the scope of protection of the present application. For the specific operating processes of the units and modules in the above-described system, please refer to the corresponding processes in the above-described method embodiments, and further description will be omitted here.

[0141] In the above embodiments, the description of each embodiment has its own emphasis, and for the parts not detailed or described in one embodiment, please refer to the related descriptions of other embodiments.

[0142] In the embodiments of the present application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the above-described embodiments of the electronic devices are merely schematic. For example, the division into modules or units is merely a logical functional division, and in actual implementation, other division methods may be used. For example, multiple units or assemblies may be combined or integrated into another system, or some features may be omitted or not implemented. Furthermore, the couplings or direct couplings or communication connections between devices shown or discussed may be indirect couplings or communication connections through some interfaces, devices, or units, and may be electrical, mechanical, or other types of couplings.

[0143] Units described as separate components may or may not be physically separated, and components shown as units may or may not be physical units, located in one location, or distributed across multiple network units, some or all of which may be selected to achieve the objectives of the solutions of this embodiment according to actual needs.

[0144] Furthermore, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist physically independently, or two or more units may be integrated into one unit. The integrated unit may be realized in the form of hardware or in the form of a software functional unit.

[0145] The above examples are only for illustrating the technical solutions of the present application, and are not intended to limit the same. Although the present application has been described in detail with reference to the above examples, it should be understood by those skilled in the art that modifications may still be made to the technical solutions described in the above examples, or equivalent replacements may be made for some of the technical features therein. Such modifications or replacements do not deviate from the essence of the corresponding technical solutions and the spirit and scope of the technical solutions of the examples of the present application, and all should be included within the protection scope of the present application.

Claims

1. A vehicle power distribution integrated architecture, comprising: a low-voltage battery; a battery management module; and a low-voltage power distribution module; the low voltage battery is electrically connected to the low voltage power distribution module; a low-voltage load input terminal for inputting a low-voltage load is disposed on the low-voltage power distribution module; The battery management module and the low-voltage power distribution module share a same controller, and the controller integrates a function for managing the low-voltage battery and a function for controlling power distribution to the low-voltage load.

2. The vehicle power distribution integrated architecture comprises: The low-voltage power supply input terminal is electrically connected to the low-voltage power distribution module for inputting the low-voltage power converted by the power battery; The vehicle power distribution integration architecture of claim 1 , wherein the low voltage power distribution module is further used to perform power allocation for the low voltage power source.

3. the battery management module further includes a first switch module controlled by the controller; The vehicle power distribution integration architecture of claim 2 , wherein the first switch module is used to manage a charging and discharging process of the low-voltage battery under the control of the controller.

4. The vehicle power distribution integration architecture of claim 3 , wherein the low voltage battery is electrically connected to the low voltage power distribution module through the first switch module.

5. the low voltage power distribution module further includes a second switch module controlled by the controller; The vehicle power distribution integration architecture according to claim 3 , wherein the second switch module is used to control the input state of the low-voltage power supply input terminal.

6. the second switch module is connected between the low-voltage power supply input terminal and the low-voltage load input terminal; and / or The vehicle power distribution integration architecture of claim 5 , wherein the second switch module is connected between the low-voltage power supply input and the battery management module.

7. the low voltage power distribution module further includes a third switch module controlled by the controller; 6. The vehicle power distribution integration architecture of claim 5, wherein the third switch module is used to control a current direction between the low-voltage power supply input terminal and the low-voltage battery.

8. The vehicle power distribution integration architecture of claim 7 , wherein the third switch module is connected between the second switch module and the first switch module.

9. the low voltage load input terminal includes a first low voltage load input terminal and a second low voltage load input terminal; 8. The vehicle power distribution integration architecture of claim 7, wherein the first low-voltage load input terminal and the second low-voltage load input terminal are respectively connected to a first terminal and a second terminal of the third switch module.

10. The low voltage power distribution module includes: a fourth switch module connected between the first end of the third switch module and the first low-voltage load input end and controlled by the controller; 10. The vehicle power distribution integration architecture of claim 9, further comprising: a fifth switch module connected to the second end of the third switch module and the second low-voltage load input end and controlled by the controller.

11. 11. The vehicle power distribution integration architecture of claim 1, wherein the low voltage power distribution module and the battery management module are integrated on the same circuit board.

12. 12. The vehicle power distribution integrated architecture of claim 11, further comprising a vehicle heat sink, wherein the circuit board is installed on a first side of the vehicle heat sink, the low-voltage battery is installed on a second side of the vehicle heat sink, the second side of the vehicle heat sink faces the first side of the vehicle heat sink, and the vehicle heat sink is used to dissipate heat from the circuit board and the low-voltage battery.

13. The vehicle power distribution integration architecture according to any one of claims 1 to 10, wherein the number of the controller kernels is at least two.

14. 14. The vehicle power distribution integrated architecture of claim 13, wherein at least one kernel of the controller is used to process a sampling signal to obtain sampling data, and at least one kernel of the controller is used to generate control data based on the sampling data, and to output corresponding control signals based on the control data to control an operating state of the low-voltage battery and / or control the distributed power of the low-voltage loads.

15. The vehicle power distribution integrated architecture comprises:

11. The vehicle power distribution integration architecture of claim 1, further comprising an SBC power supply module connected to the controller for powering the controller.

16. 16. The vehicle power distribution integration architecture of claim 15, wherein a power input terminal of the SBC power supply module is connected to the low-voltage battery and / or low-voltage power supply input terminal, and a power output terminal of the SBC power supply module is connected to the controller.

17. The vehicle power distribution integrated architecture comprises: Further comprising a sampling module for sampling voltages and / or currents of the low-voltage battery, the battery management module, and the sampling nodes of the low-voltage power distribution module to generate sampling signals; 11. The vehicle power distribution integration architecture of claim 1, wherein the controller is connected to the sampling module, and the controller is further used to control an operating state of the low-voltage battery and / or the low-voltage power distribution module based on the sampling signal.

18. 11. The vehicle power distribution integrated architecture of claim 1, wherein the controller controls the plurality of low-voltage load input terminals of the low-voltage power distribution module to be powered up in a time-sharing manner when the low-voltage load input terminal is supplying a plurality of power-consuming low-voltage loads.

19. 2. The vehicle power distribution integration architecture of claim 1, further comprising: an AFE module connected to the low-voltage battery and the controller, respectively, for collecting information from the low-voltage battery and for interacting with the controller, the AFE module being connected to the low-voltage battery and the controller via a non-multiplexed synchronous serial communication interface.

20. A vehicle management system comprising the vehicle power distribution integration architecture of any one of claims 1 to 19.

21. 20. A motor vehicle comprising the vehicle power distribution integration architecture of any one of claims 1 to 19.

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