Vehicle power distribution integrated architecture, vehicle management system, automobile

Abstract

The application discloses a vehicle power distribution integrated architecture, a vehicle management system and an automobile. The vehicle power distribution integrated architecture comprises a low-voltage battery, a battery management module and a low-voltage power distribution module. The low-voltage battery is electrically connected with the low-voltage power distribution module. The low-voltage power distribution module is provided with a low-voltage load access end for accessing a low-voltage load. The battery management module and the low-voltage power distribution module share the same controller. By integrating the functions of managing the low-voltage battery and the functions of distributing power to the low-voltage load in the controller, the control modules in the battery management scheme and the low-voltage power distribution scheme are creatively integrated into the same controller, the control circuit is simplified, and the vehicle power distribution integrated architecture has the characteristics of low cost and simple architecture.

Description

Technical Field

[0001] This application relates to the field of automotive technology, specifically to a vehicle power distribution integrated architecture, a vehicle management system, and an automobile. Background Technology

[0002] The existing vehicle body low-voltage power distribution mainly adopts discrete low-voltage lithium-ion battery technology, equipped with fuse box products to realize primary power distribution to low-voltage loads, and then the battery management system manages the low-voltage lithium-ion batteries.

[0003] However, in the current power supply architecture, the low-voltage power distribution system and the battery management system are set up independently, and the fuse boxes used in the low-voltage power distribution system usually adopt the traditional relay or fuse solution, which has problems such as large size, complex wiring and high maintenance costs. Summary of the Invention

[0004] In view of the above problems, this application provides a vehicle power distribution integrated architecture, a vehicle management system, and a car, which can solve the problems of large size, complex wiring, and high maintenance costs caused by the independent setting of low-voltage power distribution system and battery management system in the current vehicle power supply architecture.

[0005] The first aspect of this application provides a vehicle power distribution integrated architecture, which includes: a low-voltage battery, a battery management module, and a low-voltage power distribution module;

[0006] The low-voltage battery is electrically connected to the low-voltage power distribution module;

[0007] The low-voltage power distribution module is equipped with a low-voltage load access terminal for connecting low-voltage loads;

[0008] The battery management module and the low-voltage power distribution module share the same controller, which integrates the functions of managing the low-voltage battery and controlling the power distribution of the low-voltage load.

[0009] In the technical solution of this application embodiment, the low-voltage power distribution module is configured with a low-voltage load access terminal for connecting low-voltage loads. The low-voltage power distribution module configures the power output of the low-voltage battery, and the battery management module manages the low-voltage battery. The battery management module and the low-voltage power distribution module share the same controller. By integrating the functions of managing the low-voltage battery and controlling the power distribution of the low-voltage load into the controller, the battery management scheme and the low-voltage power distribution control scheme in the field of low-voltage power electronics are creatively integrated into the same controller. By reusing some components, the control circuit is simplified, and it has the characteristics of low cost and simple architecture.

[0010] In some embodiments, the vehicle power distribution integration architecture further includes:

[0011] The low-voltage power input terminal, which is electrically connected to the low-voltage power distribution module, is used to connect to the low-voltage power obtained by conversion from the power battery.

[0012] The low-voltage power distribution module is also used to distribute power to the low-voltage power supply.

[0013] In the technical solution of this application embodiment, the low-voltage power input terminal is used to connect to the low-voltage power supply obtained by voltage conversion from the power battery. The low-voltage power distribution module distributes the low-voltage power supply to the low-voltage load access terminal. For example, in the case of multiple low-voltage load access terminals, the power is allocated according to the power requirements of the low-voltage load connected to each low-voltage load access terminal, or the power is allocated according to the working state of the connected low-voltage load, so as to realize the dynamic adjustment of the output power of the low-voltage power supply and achieve the purpose of protecting the battery and the low-voltage load.

[0014] In some embodiments, the battery management module includes: a first switch module controlled by the controller;

[0015] The first switch module is used to manage the charging and discharging process of the low-voltage battery under the control of the controller.

[0016] In the technical solution of this application embodiment, the first switch module is controlled by the controller, and the controller controls the switching state of the first switch module to perform the charging and discharging operation of the low-voltage battery. This allows the low-voltage power distribution module to reuse the first switch module, reducing the wiring harness between the low-voltage power distribution module and the battery management module, and reducing the safety hazards caused by short circuits in the wiring harnesses between different circuit boards.

[0017] In some embodiments, the low-voltage battery is electrically connected to the low-voltage power distribution module via the first switching module.

[0018] In the technical solution of this application embodiment, the first switch module is connected between the low-voltage battery and the low-voltage power distribution module. 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, which controls the switching state of the first switch module to control the switching 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 reuse the first switch module, reducing the wiring harness between the low-voltage power distribution module and the battery management module, and reducing the safety hazards caused by short circuits in the wiring harnesses between different circuit boards.

[0019] In some embodiments, the low-voltage power distribution module further includes: a second switching module controlled by the controller;

[0020] The second switch module is used to control the input state of the low-voltage power supply input terminal.

[0021] In the technical solution of this application embodiment, the second switch module is controlled by the controller, which can control the input state of the low-voltage power input terminal, thereby controlling the power distribution output of the low-voltage power distribution module. For example, it 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 access terminal, thereby realizing the integrated control of the battery management module and the low-voltage power distribution module.

[0022] In some embodiments, the second switching module is connected between the low-voltage power input terminal and the low-voltage load connection terminal; and / or

[0023] The second switch module is connected between the low-voltage power input terminal and the battery management module.

[0024] In the technical solution of this application embodiment, the second switch module is controlled by the controller, which can control the input state of the low-voltage power input terminal, thereby controlling the power distribution output of the low-voltage power distribution module. For example, it 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 access terminal, thereby realizing the integrated control of the battery management module and the low-voltage power distribution module.

[0025] In some embodiments, the low-voltage power distribution module further includes: a third switch module controlled by the controller;

[0026] The third switch module is used to control the current direction between the low-voltage power input terminal and the low-voltage battery.

[0027] In some embodiments, the third switch module is connected between the second switch module and the first switch module.

[0028] In the technical solution of this application embodiment, the third switch module is controlled by the controller. The third switch module is connected between the second switch module and the first switch module. The controller can control the switching states of the first switch module, the second switch module and the third switch module. It 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 access terminal. Thus, the third switch module can control the current direction between the low-voltage power input terminal and the low-voltage battery, realizing integrated control of the power output of the battery management module and the low-voltage power distribution module.

[0029] In some embodiments, the low-voltage load access terminal includes a first low-voltage load access terminal and a second low-voltage load access terminal.

[0030] The first low-voltage load access terminal and the second low-voltage load access terminal are respectively connected to the first terminal and the second terminal of the third switch module.

[0031] In the technical solution of this application embodiment, the first low-voltage load access terminal and the second low-voltage load access terminal are respectively connected to the first terminal and the second terminal of the third switch module. The switching states of the first switch module, the second switch module and the third switch module can be controlled by the controller. The current direction between the low-voltage power input terminal and the low-voltage battery can be controlled by the third switch module, thereby realizing the integrated control of the power output of the battery management module and the low-voltage power distribution module.

[0032] In some embodiments, the low-voltage power distribution module further includes:

[0033] A fourth switch module connected between the first end of the third switch module and the first low-voltage load access end, and controlled by the controller;

[0034] And a fifth switch module connected to the second terminal of the third switch module and the second low-voltage load access terminal, and controlled by the controller.

[0035] In the technical solution of this application embodiment, multiple first low-voltage load access terminals are set to connect to multiple low-voltage loads respectively, and a fourth switch module is set between each first low-voltage load access terminal and a second switch module. The fourth switch module controls the power-on state of its corresponding first low-voltage load access terminal. Multiple second low-voltage load access terminals are set to connect to multiple low-voltage loads respectively, and a fifth switch module is set between each second low-voltage load access terminal and a third switch module. The fifth switch module controls the power-on state of its corresponding second low-voltage load access terminal.

[0036] In some embodiments, the low-voltage power distribution module and the battery management module are integrated on the same circuit board.

[0037] In the technical solution of this application embodiment, since the battery management module and the low-voltage power distribution module share the same controller, the battery management module and the low-voltage power distribution module reuse the same controller. The controller and a part of the peripheral driving devices form the battery management module to manage the state of the low-voltage battery, and the controller and another part of the peripheral driving devices form the low-voltage power distribution module to control the power distribution of the low-voltage load connected to the low-voltage load access terminal. The low-voltage power distribution module and the battery management module are integrated on the same circuit board, and the controller and the external driving devices that need to be controlled are integrated on the same circuit board, which helps to simplify the circuit and reduce the probability of wiring harness failure.

[0038] In some embodiments, the vehicle power distribution integrated architecture further includes a vehicle heat sink; the circuit board is disposed on a first side of the vehicle heat sink, the low-voltage battery is disposed on a second side of the vehicle heat sink, the second side of the vehicle heat sink is opposite to 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.

[0039] In the technical solution of this application embodiment, the low-voltage battery and the circuit board are respectively arranged on both sides of the same vehicle heat sink. By sharing the same vehicle heat sink with the low-voltage battery and the circuit board, the heat dissipation efficiency of the vehicle heat sink can be improved and the size of the vehicle can be reduced.

[0040] In some embodiments, the controller has at least two kernels.

[0041] In the technical solution of this application embodiment, the controller has at least two kernels, which can distribute multiple functions of the controller to multiple kernels to improve the processing efficiency of the controller.

[0042] In some embodiments, at least one core of the controller is used to process the sampling signal to obtain sampling data, and at least one core of the controller is used to generate control data based on the sampling data, and output corresponding control signals based on the control data to control the operating state of the low-voltage battery and / or control the power distribution of the low-voltage load.

[0043] In the technical solution of this application embodiment, the controller includes at least two cores. One or some of the cores can be used to process the sampling signal to obtain the corresponding sampling data, and the other core or some of the cores can be used to process the sampling data, obtain control data according to the preset calculation, and generate control signals based on the control data and output them to the peripheral driving devices. The working state of the low-voltage battery is controlled by controlling the working state of the driving devices, and / or the power distribution of the low-voltage load is controlled by controlling the working state of the driving devices.

[0044] In some embodiments, the vehicle power distribution integration architecture includes:

[0045] The SBC power supply module, connected to the controller, is used to supply power to the controller.

[0046] In the technical solution of this application embodiment, the battery management module integrates an SBC power supply module, which is used to supply power to the controller. The power source of the SBC power supply module can be a low-voltage battery.

[0047] 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 input terminal, respectively, and the power output terminal of the SBC power supply module is connected to the controller.

[0048] In the technical solution of this application embodiment, the power input terminal of the SBC power supply module can draw power from a low-voltage battery or a low-voltage power input terminal respectively. By converting the voltage input from the low-voltage battery or the low-voltage power input terminal into the controller power supply voltage, the purpose of powering the controller is achieved, avoiding the problem of the controller needing additional wiring harnesses when drawing power from an external power source.

[0049] In some embodiments, the vehicle power distribution integration architecture further includes:

[0050] The sampling module is used to perform voltage sampling and / or current sampling on the sampling nodes of the low-voltage battery, the battery management module, and the low-voltage power distribution module and generate sampling signals.

[0051] The controller is connected to the sampling module, and the controller is also used to control the operating state of the low-voltage battery according to the sampling signal.

[0052] In the technical solution of this application embodiment, multiple sampling nodes are set in the low-voltage battery, battery management module, and low-voltage power distribution module, and sampling signals are obtained by sampling the voltage or current of multiple sampling nodes. The controller determines whether the voltage or current of the sampling node corresponding to the received sampling signal meets the working conditions of the current working state, thereby controlling the working state of the low-voltage battery and the working state of the low-voltage power distribution module. This allows the low-voltage battery and the low-voltage power distribution module to adjust their working state in real time according to the electrical parameters of the low-voltage battery, battery management module, and low-voltage power distribution module, reducing safety hazards caused by line faults.

[0053] In some embodiments, when multiple low-voltage loads are connected to the low-voltage load access terminal, the controller controls the multiple low-voltage load access terminals of the low-voltage power distribution module to be powered on in a time-sharing manner.

[0054] In the technical solution of this application embodiment, multiple low-voltage load access terminals of the low-voltage power distribution module can be connected to multiple low-voltage loads respectively. When multiple low-voltage loads are connected, the controller can increase the output current of the low-voltage power distribution module by controlling the multiple low-voltage load access terminals to be powered on in a time-sharing manner, thereby avoiding the problem of excessive output current caused by multiple low-voltage load access terminals being powered on at the same time, which could lead to safety hazards.

[0055] In some embodiments, the vehicle power distribution integration architecture further includes: an AFE module connected to the low-voltage battery and the controller respectively, for collecting information from the low-voltage battery and interacting with the controller; the controller is connected to the AFE module through a non-multiplexed synchronous serial communication interface.

[0056] In the technical solution of this application embodiment, the AFE module is connected to both the low-voltage battery and the controller. The AFE module can collect information from the low-voltage battery and interact with the controller. The controller is connected to the AFE module through a non-multiplexed synchronous serial communication interface, which can establish high-speed full-duplex communication between the controller and the AFE module. The controller's data pins perform data transmission of a set type. For example, each communication module corresponds to an interactive function module and can be unaffected by other pins or modules.

[0057] A second aspect of this application also provides a vehicle management system, which includes the vehicle power distribution integration architecture as described in any of the above embodiments.

[0058] A third aspect of this application also provides a vehicle, the vehicle including the vehicle power distribution integrated architecture as described in any of the foregoing embodiments.

[0059] In the technical solution of this application embodiment, by integrating the vehicle power distribution integrated architecture described in any of the above embodiments into the automobile, the low-voltage power distribution module and the battery management module can be integrated into a single structural component, and the low-voltage power distribution module and the battery management module can reuse the same controller, thereby optimizing the electrical architecture of the vehicle management system, simplifying the relevant components of the vehicle, and greatly reducing the overall vehicle cost.

[0060] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0061] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0062] Figure 1 This is a schematic diagram of a first structural design of the vehicle power distribution integration architecture provided in an embodiment of this application;

[0063] Figure 2 This is a schematic diagram of a second structure of the vehicle power distribution integration architecture provided in the embodiments of this application;

[0064] Figure 3 This is a schematic diagram of a third structure of the vehicle power distribution integration architecture provided in the embodiments of this application;

[0065] Figure 4This is a schematic diagram of the fourth structure of the vehicle power distribution integration architecture provided in the embodiments of this application;

[0066] Figure 5 A schematic diagram of the fifth structure of the vehicle power distribution integration architecture provided in the embodiments of this application;

[0067] Figure 6 A schematic diagram of the sixth structure of the vehicle power distribution integration architecture provided in the embodiments of this application;

[0068] Figure 7 A schematic diagram of the seventh structure of the vehicle power distribution integration architecture provided in the embodiments of this application;

[0069] Figure 8 This is a schematic diagram of the eighth structure of the vehicle power distribution integration architecture provided in the embodiments of this application;

[0070] Figure 9 A ninth structural schematic diagram of the vehicle power distribution integration architecture provided in the embodiments of this application;

[0071] Figure 10 A schematic diagram of the tenth structure of the vehicle power distribution integration architecture provided in the embodiments of this application;

[0072] Figure 11 This is an eleventh structural schematic diagram of the vehicle power distribution integration architecture provided in the embodiments of this application;

[0073] Figure 12 This is a schematic diagram of the twelfth structure of the vehicle power distribution integration architecture provided in the embodiments of this application. Detailed Implementation

[0074] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0075] 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 to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0076] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0077] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The phrase "second connection port" at various locations in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0078] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0079] In the description of the embodiments of this application, the term "multiple frames" refers to two or more (including two).

[0080] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0081] In related technologies, low-voltage power distribution in vehicle bodies typically employs discrete low-voltage lithium-ion battery technology. For example, a fuse box based on a lithium-ion battery is used to achieve primary power distribution to low-voltage loads within the vehicle. The fuse box typically uses relays, fuses, and other devices as driving and protective components. However, current vehicle power supply systems often use regional controllers to control various functional modules within the vehicle. Therefore, each functional module requires an independent controller to process data and control the devices within that module. Similarly, each functional module also requires an independent SBC module to power the controller, and an independent AFE module to establish communication between the control module and the host computer. This control architecture not only requires numerous wiring harnesses but also suffers from large size and inconvenient maintenance.

[0082] To address the aforementioned technical problems, this application provides a vehicle power distribution integrated architecture, comprising: 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 the low-voltage power distribution module 200 is equipped with a low-voltage load access terminal 210 for connecting low-voltage loads. The battery management module 100 and the low-voltage power distribution module 200 share the same controller 120, which integrates functions for managing the low-voltage battery 300 and for power distribution control of the low-voltage loads.

[0083] In this embodiment, the low-voltage power distribution module 200 is configured with a low-voltage load access terminal 210 for connecting low-voltage loads. The low-voltage power distribution module 200 is connected to the low-voltage battery 300, and the power output of the low-voltage battery 300 is configured by the low-voltage power distribution module 200. The battery management module 100 is used to manage the low-voltage battery 300. 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. By integrating the functions of managing the low-voltage battery 300 and controlling the power distribution of the low-voltage load in the controller 120, the control module of the battery management scheme and the low-voltage power distribution scheme in the field of low-voltage power electronics is creatively integrated into the same controller 120. Furthermore, the control circuit is simplified by reusing some components. The design, debugging and installation of the vehicle's overall circuit are simplified. Compared with the independent setting of the battery management scheme and the low-voltage power distribution scheme, it has the characteristics of low cost, simple architecture and lower failure rate.

[0084] In some specific application embodiments, in the vehicle low-voltage power distribution system, the controller 120 and a portion of power devices form a battery management module 100, and the controller 120 and another portion of power devices form a low-voltage power distribution module 200, thereby integrating the entire vehicle low-voltage power distribution system. The same controller 120 realizes the control and management of the vehicle low-voltage power distribution system, optimizes the energy management of the entire low-voltage power distribution system, and improves the power utilization efficiency and power supply stability of the entire vehicle low-voltage power distribution system.

[0085] In some specific application embodiments, since the controller 120 and a portion of power devices are used to form the battery management module 100, and the controller 120 and another portion of power devices are used to form the low-voltage power distribution module 200, there is no need for a bulky fuse box. The battery management module 100, the low-voltage power distribution module 200 and the low-voltage battery 300 can be further integrated into the low-voltage battery assembly. This not only reduces the size of the vehicle's low-voltage power distribution system, but also shortens the wiring harness distance between the low-voltage battery 300 and the battery management module 100, as well as between the low-voltage battery 300 and the low-voltage power distribution module 200, thereby reducing the probability of power and communication wiring harness failures in the vehicle's low-voltage power distribution system.

[0086] In some embodiments, see Figure 2 As shown, the vehicle power distribution integrated architecture in this embodiment also includes a low-voltage power input terminal 400, which is electrically connected to the low-voltage power distribution module 200. The low-voltage power input terminal 400 can be used to access the low-voltage power obtained by the power battery, and the low-voltage power distribution module 200 can distribute the power of the input low-voltage power.

[0087] In this embodiment, the low-voltage power input terminal 400 is used to connect to the low-voltage power supply obtained by voltage conversion from the power battery. The low-voltage power distribution module 200 distributes the low-voltage power supply to the low-voltage load access terminal 210. For example, in the case of multiple low-voltage load access terminals 210, the power is allocated according to the power requirements of the low-voltage load connected to each low-voltage load access terminal 210, or according to the working state of the connected low-voltage load, so as to realize the dynamic adjustment of the output power of the low-voltage power supply and achieve the purpose of protecting the battery and the low-voltage load.

[0088] In some embodiments, see Figure 3 As shown, 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.

[0089] In this embodiment, the first switch module 101 is controlled by the controller 120. The controller 120 controls the switching state of the first switch module 101 to perform the charging and discharging operation of the low-voltage battery 300. This allows the low-voltage power distribution module 200 to reuse the first switch module 101 as its power distribution management unit. There is no need to set up a power distribution management device in the low-voltage power distribution module 200. In addition, the wiring harness between the low-voltage power distribution module 200 and the battery management module 100 is reduced, which reduces the safety hazards caused by short circuits in the wiring harnesses between different circuit boards.

[0090] 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.

[0091] In this embodiment, the first switch module 101 is connected between the low-voltage battery 300 and the low-voltage power distribution module 200. 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 switching state of the first switch module 101 to control the switching 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, so that the low-voltage power distribution module 200 and the battery management module 100 can reuse the first switch module 101, reducing the wiring harness between the low-voltage power distribution module 200 and the battery management module 100, and reducing the safety hazards caused by short circuits in the wiring harnesses between different circuit boards.

[0092] In some embodiments, see Figure 4 As shown, the low-voltage power distribution module 200 also includes a second switch module 202 controlled by the controller 120; the second switch module 202 is used to control the input state of the low-voltage power input terminal 400.

[0093] 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 access terminal 210, thereby controlling the power distribution output of the low-voltage power distribution module 200. For example, it 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 access terminal 210, thereby realizing the integrated control of the battery management module 100 and the low-voltage power distribution module 200.

[0094] In some embodiments, the second switch module 202 is connected between the low-voltage power input terminal 400 and the low-voltage load access terminal 210.

[0095] In some embodiments, the second switch module 202 is connected between the low-voltage power input terminal 400 and the battery management module 100.

[0096] 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, thereby controlling the power distribution output of the low-voltage power distribution module 200. For example, it 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 access terminal 210, thereby realizing the integrated control of the battery management module 100 and the low-voltage power distribution module 200.

[0097] In some embodiments, see Figure 4As shown, the low-voltage power distribution module 200 also includes a third switch module 203, which is controlled by the controller 120. The third switch module 203 is used to control the current direction between the low-voltage power input terminal 400 and the low-voltage battery 300 under the control of the controller 120.

[0098] In some embodiments, the third switch module 203 is connected between the second switch module 202 and the first switch module 101.

[0099] 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 switching states of the first switch module 101, the second switch module 202 and the third switch module 203. It 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 access terminal 210. Thus, the third switch module 203 can control the current direction between the low-voltage power input terminal 400 and the low-voltage battery 300, thereby realizing the integrated control of the power output of the battery management module 100 and the low-voltage power distribution module 200.

[0100] In some embodiments, see Figure 5 As shown, the low-voltage load access terminal 210 includes a first low-voltage load access terminal 211 and a second low-voltage load access terminal 212; the first low-voltage load access terminal 211 and the second low-voltage load access terminal 212 are respectively connected to the first terminal and the second terminal of the third switch module 203.

[0101] In this embodiment, the first low-voltage load access terminal 211 and the second low-voltage load access terminal 212 are respectively connected to the first terminal and the second terminal of the third switch module 203. The switching states of the first switch module 101, the second switch module 202 and the third switch module 203 can be controlled by the controller 120. The current direction between the low-voltage power input terminal 400 and the low-voltage battery 300 can be controlled by the third switch module 203, thereby realizing the integrated control of the power output of the battery management module 100 and the low-voltage power distribution module 200.

[0102] In some embodiments, see Figure 5 As shown, the low-voltage power distribution module 200 also includes a fourth switch module 204 and a fifth switch module 205. The fourth switch module 204 is connected between the first end of the third switch module 203 and the first low-voltage load access terminal 211, and the fourth switch module 204 is controlled by the controller 120. The fifth switch module 205 is connected between the second end of the third switch module 203 and the second low-voltage load access terminal 212, and the fifth switch module 205 is controlled by the controller 120.

[0103] In this embodiment, the first low-voltage load access 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 access 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-on state of the corresponding first low-voltage load access terminal 211, and the fifth switch module 205 controls the power-on state of the corresponding second low-voltage load access terminal 212, thereby achieving individual control and management of each low-voltage load.

[0104] In some embodiments, both the fourth switch module 204 and the fifth switch module 205 are MOS devices.

[0105] In some embodiments, there are multiple first low-voltage load access terminals 211 and fourth switch modules 204, and the first low-voltage load access terminals 211 and fourth switch modules 204 are configured in a one-to-one correspondence; there are multiple second low-voltage load access terminals 212 and fifth switch modules 205, and the second low-voltage load access terminals 212 and fifth switch modules 205 are configured in a one-to-one correspondence.

[0106] In this embodiment, multiple first low-voltage load access terminals 211 are configured to connect to multiple low-voltage loads respectively. A fourth switch module 204 is configured between each first low-voltage load access terminal 211 and the second switch module 202, and the fourth switch module 204 controls the power-on state of its corresponding first low-voltage load access terminal 211. Multiple second low-voltage load access terminals 212 are configured to connect to multiple low-voltage loads respectively. A fifth switch module 205 is configured between each second low-voltage load access terminal 212 and the third switch module 203, and the fifth switch module 205 controls the power-on state of its corresponding second low-voltage load access terminal 212, thus achieving individual control and management of each low-voltage load.

[0107] In one embodiment, see Figure 6 As shown, the low-voltage battery 300 can be composed of multiple battery cells BAT.

[0108] In one embodiment, see Figure 6As shown, in the vehicle power distribution integrated architecture 800 of this embodiment, the first switch module 101 includes a first switch tube Q1, which can be a bidirectional switch device. The first end of the first switch tube Q1 is connected to the low-voltage battery 300, and the second end of the first switch tube Q1 is connected to the second end of the third switch module 203. Both control ends of the first switch tube Q1 are connected to the controller 120. This bidirectional switch device is controlled by the controller 120 and can 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 through the first switch module 101. When the first switch module 101 is in the first conduction condition, the low-voltage battery 300 supplies power to the first low-voltage load access 211 or the second low-voltage load access 212 through the first switch module 101. At this time, the low-voltage power input terminal 400 cannot charge the low-voltage battery 300.

[0109] When the first switch module 101 is in the second conduction condition, the low-voltage power input terminal 400 charges the low-voltage battery 300 through the first switch module 101.

[0110] When the first switch module 101 is in the off condition, the low-voltage battery 300 is disconnected from the third switch module 203 and the fifth switch module 205.

[0111] In some embodiments, the first switch Q1 may be a MOS device.

[0112] In some embodiments, see Figure 6 As shown, the third switch module 203 includes a third switch transistor Q3. The first and second ends of the third switch transistor Q3 serve as the first and second ends of the third switch module 203, respectively. The third switch transistor Q3 can be a bidirectional switch device, and both control ends of the third switch transistor Q3 are connected to the controller 120. When the first switch module 101 and the third switch module 203 are both in the first conduction condition, the low-voltage battery 300 supplies power to the first low-voltage load access terminal 211 via the first switch module 101 and the third switch module 203. At this time, the low-voltage power input terminal 400 can also supply power to the first low-voltage load access terminal 211 via the second switch module 202, but the current output from the low-voltage power input terminal 400 cannot pass through the third switch module 203.

[0113] In one embodiment, the first low-voltage load access terminal 211 can be connected to a high-power low-voltage load. 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 requirements of the first low-voltage load access terminal 211, it can control the first switch module 101 and the third switch module 203 to be in the first conduction condition, so that the low-voltage battery 300 can compensate the high-power low-voltage load connected to the first low-voltage load access terminal 211 for power, thereby avoiding the problem of unstable power supply caused by excessive power of the connected low-voltage load.

[0114] In some embodiments, the third switch Q3 can be a MOS device.

[0115] In some embodiments, see Figure 6 As shown, the second switch module 202 includes a second switch transistor Q2. The first end of the second switch transistor Q2 is connected to the low-voltage power input terminal 400. The second end of the second switch transistor Q2 is connected to the first low-voltage load access terminal 211 via the fourth switch module 204, or the second end of the second switch transistor Q2 is connected to the first end of the third switch module 203. The control terminal of the second switch transistor Q2 is connected to the controller 120. The second switch transistor Q2 is turned on or off according to the control signal sent by the controller 120.

[0116] In some embodiments, the second switch Q2 may be a MOS device.

[0117] In some embodiments, see Figure 6 As shown, the fourth switch module 204 includes multiple switching devices (switching devices Q1p, ..., switching devices Qnp), and the first low-voltage load access terminal 211 includes multiple load access terminals (load access terminals L1p, ..., load access terminals Lnp). The multiple load access terminals (load access terminals L1p, ..., load access terminals Lnp) are respectively connected to the first terminal of the third switch module 203 via multiple switching devices (switching devices Q1p, ..., switching devices Qnp). The multiple switching devices (switching devices Q1p, ..., switching devices Qnp) are all controlled by the controller 120. The controller 120 controls the switching state of each switching device to achieve the purpose of power distribution management of the low-voltage load connected to each load access terminal.

[0118] In some embodiments, see Figure 6As shown, the fifth switch module 205 includes multiple switching devices (switching devices Q1s, ..., switching devices Qns), and the second low-voltage load access terminal 212 includes multiple load access terminals (load access terminals L1s, ..., load access terminals Lns). The multiple load access terminals (load access terminals L1s, ..., load access terminals Lns) are respectively connected to the second terminal of the third switch module 203 via multiple switching devices (switching devices Q1s, ..., switching devices Qns). The multiple switching devices (switching devices Q1s, ..., switching devices Qns) are all controlled by the controller 120. The controller 120 controls the switching state of each switching device to achieve the purpose of power distribution management of the low-voltage load connected to each load access terminal.

[0119] In some embodiments, the switching devices Q1s, ..., Qns, Q1s, ..., Qns are all MOS devices.

[0120] In some embodiments, the first switch Q1, the second switch Q2, the third switch Q3, the switching device Q1s, ..., the switching device Qns are all MOS devices, and the first switch Q1, the second switch Q2, the third switch Q3, the switching device Q1s, ..., the switching device Qns are integrated with the controller 120 on the same circuit board. This reduces the communication harness between the independent low-voltage power distribution system and the independent thermal management system, and also eliminates the need for a separate controller and related SBC power supply chip, saving the number of chips used and reducing the probability of power supply and communication harness failures in the vehicle's low-voltage power distribution system.

[0121] In some embodiments, see Figure 7 As shown, the low-voltage power distribution module 200 and the battery management module 100 are integrated on the same circuit board 123.

[0122] In this embodiment, since the battery management module 100 and the low-voltage power distribution module 200 share the same controller 120, the battery management module 100 and the low-voltage power distribution module 200 reuse the same controller 120. The controller 120 and a part of its peripheral driving devices form the battery management module 100 to manage the state of the low-voltage battery, and the controller 120 and another part of its peripheral driving devices form the low-voltage power distribution module 200 to control the power distribution of the low-voltage load connected to the low-voltage load access terminal 210. The low-voltage power distribution module 200 and the battery management module 100 are integrated on the same circuit board 123, and the controller 120 and the external driving devices that need to be controlled are integrated on the same circuit board. This avoids the problem of needing a lot of wiring harnesses between the circuit boards due to the original independent setting of the battery management module 100 and the low-voltage power distribution module 200, and reduces the probability of wiring harness failure by simplifying the wiring.

[0123] In some embodiments, the external pins of the controller 120 can not only form a low-voltage power distribution module 200 and a battery management module 100 with its peripheral driving devices, but also can be extended. For example, by soldering its external extension pins to the extension lines on the circuit board 123 and connecting the extension lines on the circuit board 123 through multiple pads, the external extension pins of the controller 120 can be functionally customized and reused to achieve the purpose of customizing vehicle functions.

[0124] In some embodiments, see Figure 8 As shown, the vehicle power distribution integrated architecture also includes a vehicle heat sink 310, a circuit board 123 is disposed on the first side of the vehicle heat sink 310, and a low-voltage battery 300 is disposed on the second side of the vehicle heat sink 310. The second side of the vehicle heat sink 310 is opposite to the first side of the vehicle heat sink 310. The vehicle heat sink 310 is used to dissipate heat from the circuit board 123 and the low-voltage battery 300.

[0125] In this embodiment, the low-voltage battery 300 and the circuit board 123 are respectively disposed on both sides of the same vehicle heat sink 310. By sharing the same vehicle heat sink 310 with 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 size of the vehicle can be reduced.

[0126] In some embodiments, see Figure 9As shown, the low-voltage battery assembly includes a lower cover 125 and an upper cover 126. The low-voltage battery 300 is disposed inside the lower cover 125, which has a concave structure. The lower cover 125 and the upper cover 126 form a storage cavity. The circuit board 123 and the vehicle heat sink 310 are disposed on the low-voltage battery 300. The circuit board 123 and the vehicle heat sink 310 are fixed by a mounting structure. The distance between the circuit board 123, the vehicle heat sink 310, and the low-voltage battery 300 can be set according to heat dissipation requirements and wiring harness requirements. In this embodiment, the battery management module 100, low-voltage power distribution module 200, and low-voltage battery 300 are integrated into a low-voltage battery assembly. A heat sink is provided on the side of the circuit board 123 near the low-voltage battery 300. The side of the circuit board 123 near the product cover 126 is used to solder the controller 120 in the battery management module 100 and the low-voltage power distribution module 200, as well as related power devices. The shape of the product cover 126 is determined according to the shape of the controller 120 and related power devices, so that the shape of the battery management module 100 and the low-voltage power distribution module 200 matches the shape of the product cover 126. This not only reduces the volume of the vehicle's 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 also reduces the probability of power and communication wiring harness failures in the vehicle's low-voltage power distribution system.

[0127] In some embodiments, the vehicle heat sink 310 can be a water-cooled plate, which is disposed between the circuit board 123 and the low-voltage battery 300. After the vehicle is started, the water-cooled plate absorbs the heat dissipated by the low-voltage battery 300 and the circuit board 123, thereby improving the space utilization efficiency inside the vehicle and reducing the size and volume of the vehicle management system.

[0128] In some embodiments, the controller 120 has at least two cores.

[0129] In this embodiment, the controller 120 has at least two cores, which can distribute multiple functions of the controller 120 to multiple cores, thereby improving the processing efficiency of the controller 120.

[0130] In some embodiments, at least one core of the controller 120 is used to process the sampling signal to obtain sampling data, and at least one core of the controller 120 is used to generate control data based on the sampling data, and output the corresponding control signal based on the control data to control the working state of the low-voltage battery 300.

[0131] In this embodiment, the controller 120 includes at least two cores. One or some of the cores can be used to process the sampling signal to obtain the corresponding sampling data, and the other core or some of the cores can be used to process the sampling data to obtain control data according to a preset calculation. Based on the control data, a control signal is generated and output to the peripheral driving device. The working state of the low-voltage battery 300 is controlled by controlling the working state of the driving device.

[0132] In some embodiments, at least one core of the controller 120 is used to process the sampling signal to obtain sampling data, and the at least one core 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 power distribution of the low-voltage load.

[0133] In this embodiment, the controller 120 includes at least two cores. One or some of the cores can be used to process the sampling signal to obtain the corresponding sampling data, and the other core or some of the cores can be used to process the sampling data, obtain control data according to the preset calculation, and generate control signals based on the control data and output them to the peripheral driving devices. The power distribution of the low-voltage load is controlled by controlling the working state of the driving devices.

[0134] In some embodiments, see Figure 10 As shown, the vehicle power distribution integrated architecture includes an SBC power supply module 510, which is connected to the controller 120 and is used to supply power to the controller 120.

[0135] In this embodiment, the SBC power supply module 510 in the vehicle power distribution integrated architecture can be integrated into the battery management module 100 or into the low-voltage power distribution module 200. The power source of the SBC power supply module 510 can be the low-voltage battery 300. By reusing the SBC power supply module 510 between the battery management module 100 and the low-voltage power distribution module 200, the chips required for the vehicle power distribution integrated architecture can be saved, the wiring harness usage inside the vehicle power distribution integrated architecture can be reduced, and the stability of the line can be improved.

[0136] 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 input terminal 400, respectively, and the power output terminal of the SBC power supply module 510 is connected to the controller 120.

[0137] In this embodiment, the power input terminal of the SBC power supply module 510 can draw power from the low-voltage battery 300 or the low-voltage power input terminal 400 respectively. By converting the voltage input from the low-voltage battery 300 or the low-voltage power input terminal 400 into the power supply voltage of the controller 120, the purpose of powering the controller 120 is achieved, avoiding the problem of the controller 120 needing additional wiring harnesses to draw power from an external power source.

[0138] In some embodiments, the power input terminal of the SBC power supply module 510 can be simultaneously connected to the low-voltage battery 300 and the low-voltage power input terminal 400. An anti-reverse current circuit is provided between the power input terminal of the SBC power supply module 510 and the low-voltage battery 300, and an anti-reverse current circuit is provided between the power input terminal of the SBC power supply module 510 and the low-voltage power input terminal 400. This can prevent current backflow generated when the low-voltage battery 300 and the low-voltage power input terminal 400 output current, thereby improving the safety of the power supply circuit.

[0139] The System Base Chip (SBC) provides the operating voltage for the controller 120 and its peripheral devices. Without SBC power, the controller's peripheral devices cannot function. In this embodiment, the controller 120 and some power devices form the battery management module 100, and the controller 120 and other power devices form the low-voltage power distribution module 200. The controller 120 integrates functions for managing the low-voltage battery 300 and controlling the power distribution of low-voltage loads. Therefore, by outputting multiple voltages from the input power supply through the SBC power supply module 510, power can be supplied to the controller 120 and its peripheral power devices. Only one SBC chip is needed to power the components of the vehicle's low-voltage power distribution system, saving on the cost of an SBC chip and optimizing the low-voltage power distribution. The power management scheme of the power distribution system reduces the performance instability caused by inconsistent power supply voltage in the independent SBC scheme, and improves the working consistency of power devices and chips in the low-voltage power distribution system. For example, the SBC power supply module 510 outputs one independent 3.3V power supply to power the controller 120, and can also output one independent 3.3V power supply to power the analog chip on the circuit board 123, and one independent 5V power supply to power the communication chip on the circuit board 123. The consistent input power supply of the SBC power supply module 510 can improve the consistency of its output voltage.

[0140] In some embodiments, see Figure 11 As shown, the vehicle power distribution integrated architecture also includes a sampling module 520. The sampling module 520 is used to sample the voltage of the 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. The controller 120 is connected to the sampling module 520 and is also used to control the working state of the low-voltage battery 300 according to the sampling signals.

[0141] In this embodiment, multiple sampling nodes are set in the low-voltage battery 300, battery management module 100, and low-voltage power distribution module 200, and sampling signals are obtained by sampling the voltage of multiple sampling nodes. The controller 120 determines whether the voltage of the sampling node corresponding to the received sampling signal meets the working conditions of the current working state, thereby controlling the working state of the low-voltage battery 300. This allows the low-voltage battery 300 to adjust its working state in real time according to the electrical parameters of the low-voltage power distribution module 200 and the low-voltage battery 300, reducing safety hazards caused by line faults.

[0142] In some embodiments, the sampling module 520 is used to sample the current of the 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; the controller 120 is also used to control the working state of the low-voltage battery 300 according to the sampling signal.

[0143] In this embodiment, multiple sampling nodes are set in the low-voltage battery 300, battery management module 100, and low-voltage power distribution module 200, and the current of the multiple sampling nodes is sampled to obtain sampling signals. The controller 120 determines whether the current of the sampling node corresponding to the received sampling signal meets the working conditions of the current working state, thereby controlling the working state of the low-voltage battery 300. This allows the low-voltage battery 300 to adjust its working state in real time according to the electrical parameters of the low-voltage power distribution module 200 and the low-voltage battery 300, reducing safety hazards caused by line faults.

[0144] In some embodiments, the low-voltage power distribution module 200 and the battery management module 100 are integrated on the same circuit board 123. The low-voltage power distribution module 200 and the battery management module 100 are connected. Only the common node of the low-voltage power distribution module 200 and the battery management module 100 needs to be sampled to sample their output current, which can save at least one current sampling chip.

[0145] In some embodiments, the sampling module 520 is used to sample the current and voltage of the 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. The controller 120 is also used to control the working state of the low-voltage battery 300 according to the sampling signals.

[0146] In this embodiment, multiple sampling nodes are set in the low-voltage battery 300, battery management module 100, and low-voltage power distribution module 200, and sampling signals are obtained by sampling the voltage or current of multiple sampling nodes. The controller 120 determines whether the voltage or current of the sampling node corresponding to the received sampling signal meets the working conditions of the current working state, thereby controlling the working state of the low-voltage battery 300. This allows the low-voltage battery 300 to adjust its working state in real time according to the electrical parameters of the low-voltage power distribution module 200 and the low-voltage battery 300, reducing safety hazards caused by line faults or low-voltage battery 300 failures.

[0147] In some embodiments, the sampling module 520 can also sample the temperature of multiple sampling nodes of the low-voltage battery 300, the battery management module 100, and the low-voltage power distribution module 200 to obtain corresponding sampling signals. The controller 120 determines whether the temperature of the sampling node corresponding to the received sampling signal meets the working conditions of the current working state, thereby controlling the working state of the low-voltage battery 300. This allows the low-voltage battery to adjust its working state in real time according to the electrical parameters of the low-voltage power distribution module 200 and the low-voltage battery 300, reducing safety hazards caused by line faults.

[0148] In some embodiments, the controller 120 includes at least two cores. After the battery management module 100 and the low-voltage power distribution module 200 reuse the same controller 120, the data collected by the sampling module 520 can be directly output to the controller 120 and processed uniformly by the controller 120. There is no need for the upper-level processor to send messages through the CAN bus, and it is not affected by external factors, which reduces the problem of information loss caused by message failure.

[0149] In some embodiments, the controller 120 is also configured to control the operating state of the low-voltage power distribution module 200 based on the sampled signal.

[0150] In this embodiment, multiple sampling nodes are set in the low-voltage battery 300, battery management module 100, and low-voltage power distribution module 200, and sampling signals are obtained by sampling the voltage or current of multiple sampling nodes. The controller 120 determines whether the voltage or current of the sampling node corresponding to the received sampling signal meets the working conditions of the current working state, thereby controlling the working state of the low-voltage battery 300. This allows the low-voltage battery 300 to adjust the working state of the low-voltage power distribution module 200 in real time according to the electrical parameters of the low-voltage power distribution module 200 and the low-voltage battery 300, reducing safety hazards caused by line faults or low-voltage battery 300 failures.

[0151] In some embodiments, when multiple low-voltage loads are connected to the low-voltage load access terminal 210, the controller 120 controls the multiple low-voltage load access terminals 210 of the low-voltage power distribution module 200 to be powered on in a time-sharing manner.

[0152] In this embodiment, the multiple low-voltage load access terminals of the low-voltage power distribution module 200 can be connected to multiple low-voltage loads respectively. When multiple low-voltage loads are connected, the controller 120 can increase the output current of the low-voltage power distribution module 200 by controlling the multiple low-voltage load access terminals to be powered on in a time-sharing manner, thereby avoiding the problem of excessive output current caused by multiple low-voltage load access terminals 210 being powered on at the same time, which could lead to safety hazards.

[0153] In some embodiments, see Figure 12 As shown, the vehicle power distribution integrated architecture also includes an AFE module 530, which is connected to the low-voltage battery 300 and the controller 120 respectively. The AFE module 530 is used to collect information from the low-voltage battery 300 and to interact with the controller 120.

[0154] In this embodiment, the AFE module 530 is connected to both the low-voltage battery 300 and the controller 120. The AFE module 530 can collect information from the low-voltage battery 300 and interact with the controller 120.

[0155] In some embodiments, the controller 120 is connected to the AFE module 530 via a non-multiplexed synchronous serial communication interface.

[0156] In this embodiment, the controller 120 is connected to the AFE module 530 through a non-multiplexed synchronous serial communication interface, which can establish high-speed full-duplex communication between the controller 120 and the AFE module 530. The data pins of the controller 120 perform data transmission of a set type. For example, each communication module corresponds to an interactive function module and can be unaffected by other pins or modules.

[0157] In some embodiments, the output voltage range of the low-voltage battery 300 is 12V-72V.

[0158] In some embodiments, the low-voltage battery 300 includes a 12-volt lithium-ion battery or a sodium-ion battery, or other rechargeable batteries.

[0159] In some embodiments, the low-voltage battery 300 includes a 24-volt lithium-ion battery or a sodium-ion battery, or other rechargeable batteries.

[0160] In some embodiments, the low-voltage battery 300 includes a 48-volt lithium-ion battery or a sodium-ion battery, or other rechargeable batteries.

[0161] In some embodiments, the low-voltage battery 300 includes a 72V lithium-ion battery or a sodium-ion battery, or other rechargeable batteries.

[0162] In this embodiment, the vehicle integrated domain controller architecture of this application embodiment can be applied to fuel vehicles and new energy vehicles, wherein the output voltage of its in-vehicle low-voltage battery does not exceed 72V.

[0163] This application also provides a vehicle management system, which includes the vehicle power distribution integration architecture as described in any of the above embodiments.

[0164] The vehicle management system in this embodiment can be applied to low-voltage batteries configured in fuel vehicles and new energy vehicles, and is not limited to passenger cars or commercial vehicles.

[0165] This application also provides a vehicle that includes the vehicle power distribution integrated architecture as described in any of the above embodiments.

[0166] In this embodiment, by integrating the vehicle power distribution integrated architecture described in any of the above embodiments into the vehicle, the low-voltage power distribution module and the battery management module can be integrated into a single structural component, and the low-voltage power distribution module and the battery management module can reuse the same controller, thereby optimizing the electrical architecture of the vehicle management system, simplifying the relevant components of the vehicle, and greatly reducing the overall vehicle cost.

[0167] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0168] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0169] In the embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the electronic device embodiments described above are merely illustrative. For example, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0170] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0171] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0172] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A vehicle power distribution integrated architecture, characterized in that, include: Low-voltage battery, battery management module, and low-voltage power distribution module integrated into the low-voltage battery assembly; The low-voltage battery is electrically connected to the low-voltage power distribution module; The low-voltage power distribution module is configured with a low-voltage load access terminal for connecting low-voltage loads; the battery management module and the low-voltage power distribution module share the same controller, which integrates the functions of managing the low-voltage battery and controlling the power distribution of the low-voltage load. The low-voltage power input terminal, which is electrically connected to the low-voltage power distribution module, is used to connect to the low-voltage power obtained by the power battery. The low-voltage power distribution module is also used to distribute the power of the low-voltage power. When multiple low-voltage loads are connected to the low-voltage load access terminal, the controller controls the multiple low-voltage load access terminals of the low-voltage power distribution module to be powered on in a time-sharing manner. The low-voltage load access terminal includes a first low-voltage load access terminal and a second low-voltage load access terminal. The battery management module further 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; The low-voltage power distribution module further includes: a second switch module, a third switch module, a fourth switch module, and a fifth switch module controlled by the controller, wherein the first low-voltage load access terminal and the second low-voltage load access terminal are respectively connected to the first terminal and the second terminal of the third switch module; The second switch module is used to control the input state of the low-voltage power input terminal, the third switch module is used to control the current direction between the low-voltage power input terminal and the low-voltage battery, the fourth switch module is connected between the first terminal of the third switch module and the first low-voltage load access terminal, and the fifth switch module is connected between the second terminal of the third switch module and the second low-voltage load access terminal.

2. The vehicle power distribution integrated architecture according to claim 1, characterized in that, The low-voltage battery is electrically connected to the low-voltage power distribution module via the first switch module.

3. The vehicle power distribution integrated architecture according to claim 1, characterized in that, The second switching module is connected between the low-voltage power input terminal and the low-voltage load connection terminal; and / or The second switch module is connected between the low-voltage power input terminal and the battery management module.

4. The vehicle power distribution integrated architecture according to claim 1, characterized in that, The third switch module is connected between the second switch module and the first switch module.

5. The vehicle power distribution integration architecture according to any one of claims 1-4, characterized in that, The low-voltage power distribution module and the battery management module are integrated on the same circuit board.

6. The vehicle power distribution integrated architecture according to claim 5, characterized in that, The vehicle power distribution integrated architecture also includes a vehicle heat sink; the circuit board is disposed on the first side of the vehicle heat sink, and the low-voltage battery is disposed on the second side of the vehicle heat sink, the second side of the vehicle heat sink being opposite to 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.

7. The vehicle power distribution integrated architecture according to any one of claims 1-4, characterized in that, The controller has at least two kernels.

8. The vehicle power distribution integrated architecture according to claim 7, characterized in that, At least one core of the controller is used to process the sampling signal to obtain sampling data. The at least one core of the controller is used to generate control data based on the sampling data, and output corresponding control signals based on the control data to control the working state of the low-voltage battery and / or control the power distribution of the low-voltage load.

9. The vehicle power distribution integrated architecture according to any one of claims 1-4, characterized in that, The vehicle power distribution integration architecture includes: The SBC power supply module, connected to the controller, is used to supply power to the controller.

10. The vehicle power distribution integrated architecture according to claim 9, characterized in that, The power input terminal of the SBC power supply module is connected to the low-voltage battery and / or the low-voltage power input terminal, and the power output terminal of the SBC power supply module is connected to the controller.

11. The vehicle power distribution integration architecture according to any one of claims 1-4, characterized in that, The vehicle power distribution integration architecture also includes: The sampling module is used to perform voltage sampling and / or current sampling on the sampling nodes of the low-voltage battery, the battery management module, and the low-voltage power distribution module and generate sampling signals. The controller is connected to the sampling module, and the controller is also used to control the working state of the low-voltage battery and / or the low-voltage power distribution module according to the sampling signal.

12. The vehicle power distribution integrated architecture according to claim 1, characterized in that... The vehicle power distribution integrated architecture further includes: an AFE module connected to the low-voltage battery and the controller respectively, used to collect information from the low-voltage battery and interact with the controller; the controller is connected to the AFE module through a non-multiplexed synchronous serial communication interface.

13. A vehicle management system, characterized in that, The vehicle management system includes the vehicle power distribution integration architecture as described in any one of claims 1 to 12.

14. A car, characterized in that, The vehicle includes the vehicle power distribution integration architecture as described in any one of claims 1 to 12.

Images