Vehicle power distribution integrated architecture, vehicle management system, and vehicle

Abstract

The present application discloses a vehicle power distribution integrated architecture, a vehicle management system, and a vehicle. The vehicle power distribution integrated architecture comprises 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; the low-voltage power distribution module is provided with low-voltage load connection ends to be connected to low-voltage loads; and the battery management module and the low-voltage power distribution module share a same controller. By integrating a function of managing the low-voltage battery and a function of performing power distribution control on the low-voltage loads into a controller, control modules in a battery management scheme and a low-voltage power distribution scheme are creatively integrated into a same controller, so that a control circuit is simplified, and the advantages of low costs and a simple architecture are achieved.

Description

Vehicle power distribution integrated architecture, vehicle management system, automobile

[0001] This application refers to Chinese Patent Application No. 202311162274.6 filed on September 8, 2023, entitled “Vehicle Power Distribution Integrated Architecture, Vehicle Management System, Automobile”, which is incorporated into this application in its entirety by reference. Technical Field

[0002] The present application relates to the field of automobile technology, and in particular to a vehicle power distribution integrated architecture, a vehicle management system, and an automobile. Background Art

[0003] The existing low-voltage power distribution of vehicle bodies mainly adopts discrete low-voltage lithium-ion battery technology, equipped with fuse box products to realize the first-level power distribution of low-voltage loads, and then the battery management system manages the low-voltage lithium-ion batteries.

[0004] However, in the current power supply architecture, the low-voltage distribution system and the battery management system are set up independently, and the fuse box used in the low-voltage distribution system usually adopts traditional relays or fuses, which have problems such as large size, complex wiring, and high maintenance costs. Technical issues

[0005] In view of the above problems, the present application provides a vehicle power distribution integrated architecture, a vehicle management system, and a vehicle, which can solve the problems of large size, complex wiring, and high maintenance costs caused by the independent setting of the low-voltage distribution system and the battery management system in the current vehicle power supply architecture. Technical Solutions

[0006] A first aspect of an embodiment of the present application provides a vehicle power distribution integrated architecture, the vehicle power distribution integrated architecture comprising: a low-voltage battery, a battery management module, and a low-voltage power distribution module;

[0007] The low-voltage battery is electrically connected to the low-voltage power distribution module;

[0008] The low-voltage power distribution module is provided with a low-voltage load access terminal for accessing a low-voltage load;

[0009] The battery management module and the low-voltage power distribution module share a 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.

[0010] In the technical solution of the embodiment of the present application, the low-voltage power distribution module is configured with a low-voltage load access terminal for accessing a low-voltage load. The low-voltage power distribution module configures the power output of the low-voltage battery, and 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. By integrating the functions of managing the low-voltage battery and the functions of power distribution control for the low-voltage load in the controller, the battery management solution and the low-voltage power distribution control solution in the low-voltage power electronics field 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.

[0011] In some embodiments, the vehicle power distribution integrated architecture further includes:

[0012] A low-voltage power input terminal electrically connected to the low-voltage power distribution module, used to access the low-voltage power converted by the power battery;

[0013] The low-voltage power distribution module is also used to distribute power to the low-voltage power supply.

[0014] In the technical solution of the embodiment of the present application, the low-voltage power supply input terminal is used to connect to the low-voltage power supply obtained by voltage conversion of the power battery, and 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, power distribution is performed according to the power demand of the low-voltage load connected to each low-voltage load access terminal, and power distribution can also be performed according to the working status of the connected low-voltage load, so as to realize 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.

[0015] In some embodiments, the battery management module includes: a first switch module controlled by the controller;

[0016] The first switch module is used to manage the charging and discharging process of the low-voltage battery under the control of the controller.

[0017] In the technical solution of the embodiment of the present application, 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 operations of the low-voltage battery, so that the low-voltage power distribution 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 problem of safety hazards caused by short circuits in the wiring harnesses between different circuit boards.

[0018] In some embodiments, the low-voltage battery is electrically connected to the low-voltage power distribution module via the first switch module.

[0019] In the technical solution of the embodiment of the present application, 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 the controller. The controller 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 problem of safety hazards caused by short circuits in the wiring harnesses between different circuit boards.

[0020] In some embodiments, the low-voltage power distribution module further includes: a second switch module controlled by the controller;

[0021] The second switch module is used to control the input state of the low-voltage power input terminal.

[0022] In the technical solution of the embodiment of the present application, the second switch module is controlled by the controller, which can control the input state of the low-voltage power supply input end, thereby controlling the power distribution output of the low-voltage distribution module. For example, the low-voltage power supply input end can be controlled to charge the low-voltage battery, or at least one of the low-voltage power supply input end and the low-voltage battery can be controlled to supply power to the low-voltage load access end, thereby realizing integrated control of the battery management module and the low-voltage distribution module.

[0023] In some embodiments, the second switch module is connected between the low-voltage power input terminal and the low-voltage load access terminal; and / or

[0024] The second switch module is connected between the low-voltage power input terminal and the battery management module.

[0025] In the technical solution of the embodiment of the present application, the second switch module is controlled by the controller, which can control the input state of the low-voltage power supply input end, thereby controlling the power distribution output of the low-voltage distribution module. For example, the low-voltage power supply input end can be controlled to charge the low-voltage battery, or at least one of the low-voltage power supply input end and the low-voltage battery can be controlled to supply power to the low-voltage load access end, thereby realizing integrated control of the battery management module and the low-voltage distribution module.

[0026] In some embodiments, the low-voltage power distribution module further includes: a third switch module controlled by the controller;

[0027] The third switch module is used to control the current direction between the low-voltage power input terminal and the low-voltage battery.

[0028] In some embodiments, the third switch module is connected between the second switch module and the first switch module.

[0029] In the technical solution of the embodiment of the present application, the third switch module is controlled by the controller, and the third switch module is connected between the second switch module and the first 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, and the low-voltage power input end can be controlled to charge the low-voltage battery, or at least one of the low-voltage power input end and the low-voltage battery can be controlled to output power to the low-voltage load access end, so that the current direction between the low-voltage power input end and the low-voltage battery can be controlled by the third switch module, thereby realizing integrated control of the power output of the battery management module and the low-voltage distribution module.

[0030] 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;

[0031] 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.

[0032] In the technical solution of the embodiment of the present application, the first low-voltage load access end and the second low-voltage load access end are respectively connected to the first end and the second end 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, and the current direction between the low-voltage power supply input end and the low-voltage battery is controlled by the third switch module to realize the integrated control of the power output of the battery management module and the low-voltage distribution module.

[0033] In some embodiments, the low-voltage power distribution module further includes:

[0034] 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;

[0035] and a fifth switch module connected to the second end of the third switch module and the second low-voltage load access end and controlled by the controller.

[0036] In the technical solution of the embodiment of the present application, multiple first low-voltage load access terminals can be provided to connect to multiple low-voltage loads respectively, and a fourth switch module can be provided between each first low-voltage load access terminal and the second switch module, and the fourth switch module can control the power-on state of the corresponding first low-voltage load access terminal. Multiple second low-voltage load access terminals can be provided to connect to multiple low-voltage loads respectively, and a fifth switch module can be provided between each second low-voltage load access terminal and the third switch module, and the fifth switch module can control the power-on state of the corresponding second low-voltage load access terminal.

[0037] In some embodiments, the low-voltage power distribution module and the battery management module are integrated into the same circuit board.

[0038] In the technical solution of the embodiment of the present application, 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 reuse the same controller, the battery management module composed of the controller and a part of its peripheral driving devices manages the status of the low-voltage battery, and the low-voltage power distribution module composed of the controller and another part of its peripheral driving devices performs power distribution control on the low-voltage load connected to the low-voltage load access end. 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 is conducive to simplifying the circuit and reducing the probability of wiring harness failure.

[0039] In some embodiments, the vehicle power distribution integrated architecture also includes a vehicle heat sink; the circuit board is arranged on a first side of the vehicle heat sink, and the low-voltage battery is arranged 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 for the circuit board and the low-voltage battery.

[0040] In the technical solution of the embodiment of the present application, 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, the heat dissipation efficiency of the vehicle heat sink can be improved and the volume of the vehicle can be reduced.

[0041] In some embodiments, the controller has at least two cores.

[0042] In the technical solution of the embodiment of the present application, the controller has at least two cores, and multiple functions of the controller can be distributed to multiple cores to improve the processing efficiency of the controller.

[0043] In some embodiments, at least one core of the controller is used to process a 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 a corresponding control signal based on the control data to control the working state of the low-voltage battery and / or control the distribution power of the low-voltage load.

[0044] In the technical solution of the embodiment of the present application, the controller includes at least two cores, one or part of the cores can be used to process the sampling signal to obtain corresponding sampling data, and the other core or another part of the cores can be used to process the sampling data, obtain control data according to the preset operation, and generate a control signal based on the control data to output to the peripheral drive device, thereby controlling the working state of the low-voltage battery by controlling the working state of the drive device, and / or controlling the distribution power of the low-voltage load by controlling the working state of the drive device.

[0045] In some embodiments, the vehicle power distribution integrated architecture includes:

[0046] The SBC power supply module connected to the controller is used to supply power to the controller.

[0047] In the technical solution of the embodiment of the present application, an SBC power supply module is integrated in the battery management module. The SBC power supply module is used to power the controller. The power source of the SBC power supply module can be a low-voltage battery.

[0048] In some embodiments, the power input end of the SBC power supply module is connected to the low-voltage battery and the low-voltage power input end respectively, and the power output end of the SBC power supply module is connected to the controller.

[0049] In the technical solution of the embodiment of the present application, the power input end of the SBC power supply module can draw power from a low-voltage battery or a low-voltage power input end respectively. By converting the voltage input from the low-voltage battery or the low-voltage power input end into the controller power supply voltage, the purpose of powering the controller is achieved, avoiding the problem of the controller requiring an additional wiring harness to draw power from an external power supply.

[0050] In some embodiments, the vehicle power distribution integrated architecture further includes:

[0051] A sampling module, configured 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 a sampling signal;

[0052] The controller is connected to the sampling module, and is further configured to control the working state of the low-voltage battery according to the sampling signal.

[0053] In the technical solution of the embodiment of the present application, multiple sampling nodes are set in the low-voltage battery, battery management module, and low-voltage power distribution module, and the voltage or current of the multiple sampling nodes are sampled to obtain sampling signals. The controller determines whether the voltage or current of the sampling node corresponding to the sampling signal meets the working conditions of the current working state based on the received sampling signal, thereby controlling the working state of the low-voltage battery and the working state of the low-voltage power distribution module, so that the low-voltage battery and the low-voltage power distribution module can adjust the working state in real time according to the electrical parameters of the low-voltage battery, battery management module, and low-voltage power distribution module, thereby reducing safety hazards caused by line faults.

[0054] In some embodiments, when the low-voltage load access terminal is connected to multiple low-voltage loads, 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.

[0055] In the technical solution of the embodiment of the present application, multiple low-voltage load access terminals of the low-voltage power distribution module can be respectively connected to multiple low-voltage loads consuming power. When multiple low-voltage loads consuming power 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 power on in time, thereby avoiding the problem of multiple low-voltage load access terminals being powered on at the same time, which causes the output current to be too high and leads to safety hazards.

[0056] In some embodiments, the vehicle power distribution integrated architecture also 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 via a non-multiplexed synchronous serial communication interface.

[0057] In the technical solution of the embodiment of the present application, the AFE module is connected to the low-voltage battery and the controller at the same time. The AFE module can collect information about the low-voltage battery and exchange information with the controller. The controller is connected to the AFE module through a non-multiplexed synchronous serial communication interface. High-speed full-duplex communication can be established between the controller and the AFE module. The data pin of the controller executes a set type of data transmission. For example, each communication module corresponds to an interactive function module and is not affected by other pins or modules.

[0058] A second aspect of the embodiments of the present application further provides a vehicle management system, which includes the vehicle power distribution integrated architecture as described in any one of the above embodiments.

[0059] A third aspect of the embodiments of the present application further provides a car, which includes the vehicle power distribution integrated architecture as described in any one of the above embodiments.

[0060] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. Beneficial effects

[0061] In the technical solution of the embodiments of the present application, 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 one structural component, and the low-voltage power distribution module and the battery management module reuse the same controller, thereby optimizing the electrical architecture of the vehicle management system, simplifying the relevant components of the entire vehicle, and greatly reducing the cost of the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0063] FIG1 is a schematic diagram of a first structural embodiment of a vehicle power distribution integrated architecture provided by an embodiment of the present application;

[0064] FIG2 is a schematic diagram of a second structural embodiment of a vehicle power distribution integrated architecture provided in an embodiment of the present application;

[0065] FIG3 is a schematic diagram of a third structure of a vehicle power distribution integrated architecture provided in an embodiment of the present application;

[0066] FIG4 is a schematic diagram of a fourth structure of a vehicle power distribution integrated architecture provided in an embodiment of the present application;

[0067] FIG5 is a schematic diagram of a fifth structural embodiment of a vehicle power distribution integrated architecture provided in an embodiment of the present application;

[0068] FIG6 is a sixth structural diagram of a vehicle power distribution integrated architecture provided in an embodiment of the present application;

[0069] FIG7 is a seventh structural diagram of a vehicle power distribution integrated architecture provided in an embodiment of the present application;

[0070] FIG8 is a schematic diagram of an eighth structural embodiment of a vehicle power distribution integrated architecture provided in an embodiment of the present application;

[0071] FIG9 is a ninth structural diagram of a vehicle power distribution integrated architecture provided in an embodiment of the present application;

[0072] FIG10 is a schematic diagram of the tenth structure of the vehicle power distribution integrated architecture provided in an embodiment of the present application;

[0073] FIG11 is a schematic diagram of the eleventh structure of the vehicle power distribution integrated architecture provided in an embodiment of the present application;

[0074] FIG12 is a twelfth structural diagram of the vehicle power distribution integrated architecture provided in an embodiment of the present application. Modes for Carrying Out the Invention

[0075] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0076] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0077] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0078] References to "embodiments" herein mean 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. References to the phrase "second connection port" at various locations in the specification do not necessarily refer to the same embodiment, nor do they constitute independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0079] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0080] In the description of the embodiments of the present application, the term "multi-frame" refers to two or more (including two).

[0081] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0082] In related technologies, low-voltage power distribution in vehicle bodies typically uses discrete low-voltage lithium-ion battery technology. For example, a fuse box configured with lithium-ion batteries implements primary power distribution for low-voltage loads within the vehicle. Relays, fuses, and other devices are typically used within the fuse box as driver and protection devices. However, currently, regional controllers are typically used to control each functional module within the vehicle. Therefore, each functional module requires an independent controller to process data and control the components within the module. Similarly, each functional module requires an independent SBC module to power the controller. Furthermore, an independent AFE module is required to establish communication between the control module and the host computer. The associated control architecture not only requires a large number of wiring harnesses, but also suffers from large size and inconvenient maintenance.

[0083] To address the aforementioned technical issues, embodiments of the present application provide an integrated vehicle power distribution 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, which is equipped with a low-voltage load access terminal 210 for accessing a low-voltage load. The battery management module 100 and the low-voltage power distribution module 200 share a common controller 120, which integrates functions for managing the low-voltage battery 300 and controlling power distribution to the low-voltage load.

[0084] In this embodiment, the low-voltage power distribution module 200 is configured with a low-voltage load access terminal 210 for accessing a low-voltage load. 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. 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 function of managing the low-voltage battery 300 and the function of power distribution control for the low-voltage load in the controller 120, the control modules in the battery management solution and the low-voltage power distribution solution in the low-voltage power electronics field are creatively integrated into the same controller 120, and the control circuit is simplified by reusing some components. The design, debugging and installation of the vehicle's entire circuit are simplified. Compared with the independent setting of the battery management solution and the low-voltage power distribution solution, it has the characteristics of low cost, simple architecture, and lower failure rate.

[0085] In some specific application embodiments, in the vehicle low-voltage power distribution system, the controller 120 and a part of the power devices form a battery management module 100, and the controller 120 and another part of the power devices form a low-voltage power distribution module 200, thereby integrating the entire vehicle low-voltage power distribution system. The control and management of the vehicle low-voltage power distribution system are realized by the same controller 120, optimizing the energy management of the entire low-voltage power distribution system, and improving the power utilization efficiency and power supply stability of the low-voltage power distribution system of the entire vehicle.

[0086] In some specific application embodiments, since the controller 120 and a part of the power devices are used to form the battery management module 100, and the controller 120 and another part of the power devices are used to form the low-voltage distribution module 200, there is no need for a larger fuse box, and the battery management module 100, the low-voltage distribution module 200 and the low-voltage battery 300 can be further integrated into the low-voltage battery assembly, which not only reduces the volume of the vehicle's low-voltage distribution system, but also shortens the wiring harness distance between the low-voltage battery 300 and the battery management module 100, and also shortens the wiring harness distance between the low-voltage battery 300 and the low-voltage distribution module 200, thereby reducing the probability of failure of the power supply and communication wiring harnesses in the vehicle's low-voltage distribution system.

[0087] In some embodiments, as shown in Figure 2, 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 supply obtained by power battery conversion, and the low-voltage power distribution module 200 distributes power to the input low-voltage power supply.

[0088] In this embodiment, the low-voltage power supply input terminal 400 is used to access the low-voltage power supply obtained by voltage conversion from the power battery, and 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, power distribution is performed according to the power demand of the low-voltage load connected to each low-voltage load access terminal 210, and power distribution can also be performed according to the working status of the connected 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.

[0089] In some embodiments, as shown in FIG. 3 , the battery management module 100 includes a first switch module 101 . The first switch module 101 is configured to manage the charge and discharge process of the low-voltage battery 300 under the control of the controller 120 .

[0090] In this embodiment, the first switch module 101 is controlled by the controller 120, and the controller 120 controls the switching state of the first switch module 101 to perform the charging and discharging operations of the low-voltage battery 300, so that the low-voltage distribution module 200 can reuse the first switch module 101 as its distribution management unit. There is no need to set up a distribution management device in the low-voltage distribution module 200, and the wiring harness between the low-voltage distribution module 200 and the battery management module 100 is reduced, thereby reducing the problem of safety hazards caused by short circuits in the wiring harnesses between different circuit boards.

[0091] 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 .

[0092] 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. The controller 120 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 problem of safety hazards caused by short circuits in the wiring harnesses between different circuit boards.

[0093] 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 ; the second switch module 202 is used to control the input state of the low-voltage power input terminal 400 .

[0094] 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 distribution module 200. For example, the low-voltage power input terminal 400 can be controlled to charge the low-voltage battery 300, or at least one of the low-voltage power input terminal 400 and the low-voltage battery 300 can be controlled to supply power to the low-voltage load access terminal 210, thereby realizing integrated control of the battery management module 100 and the low-voltage distribution module 200.

[0095] 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 .

[0096] In some embodiments, the second switch module 202 is connected between the low-voltage power input terminal 400 and the battery management module 100 .

[0097] 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 distribution module 200. For example, the low-voltage power input terminal 400 can be controlled to charge the low-voltage battery 300, or at least one of the low-voltage power input terminal 400 and the low-voltage battery 300 can be controlled to supply power to the low-voltage load access terminal 210, thereby realizing integrated control of the battery management module 100 and the low-voltage distribution module 200.

[0098] In some embodiments, as shown in Figure 4, the low-voltage power distribution module 200 also includes a third switch module 203, which is controlled by the third switch module 203 of 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.

[0099] In some embodiments, the third switch module 203 is connected between the second switch module 202 and the first switch module 101 .

[0100] In this embodiment, the third switch module 203 is controlled by the controller 120, and the third switch module 203 is connected between the second switch module 202 and the first switch module 101. 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, and the low-voltage power input terminal 400 can be controlled to charge the low-voltage battery 300, or at least one of the low-voltage power input terminal 400 and the low-voltage battery 300 can be controlled to output power to the low-voltage load access terminal 210, so that 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 integrated control of the power output of the battery management module 100 and the low-voltage distribution module 200.

[0101] In some embodiments, as shown in Figure 5, 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 end and the second end of the third switch module 203.

[0102] 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 end and the second end 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, and the current direction between the low-voltage power supply input terminal 400 and the low-voltage battery 300 can be controlled by the third switch module 203 to realize the integrated control of the power output of the battery management module 100 and the low-voltage distribution module 200.

[0103] In some embodiments, as shown in Figure 5, the low-voltage 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 end 211, and the fourth switch module 204 is controlled by the controller 120, the fifth switch module 205 is connected to the second end of the third switch module 203 and the second low-voltage load access end 212, and the fifth switch module 205 is controlled by the controller 120.

[0104] 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 independent control and management of each low-voltage load.

[0105] In some embodiments, the fourth switch module 204 and the fifth switch module 205 are both MOS devices.

[0106] 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 the fourth switch modules 204 are arranged in a one-to-one correspondence; there are multiple second low-voltage load access terminals 212 and the fifth switch modules 205, and the second low-voltage load access terminals 212 and the fifth switch modules 205 are arranged in a one-to-one correspondence.

[0107] In this embodiment, multiple first low-voltage load access terminals 211 can be provided to connect to multiple low-voltage loads, and a fourth switch module 204 can be provided between each first low-voltage load access terminal 211 and the second switch module 202, so that the fourth switch module 204 controls the power-on state of the corresponding first low-voltage load access terminal 211. Multiple second low-voltage load access terminals 212 can be provided to connect to multiple low-voltage loads, and a fifth switch module 205 can be provided between each second low-voltage load access terminal 212 and the third switch module 203, so that the fifth switch module 205 controls the power-on state of the corresponding second low-voltage load access terminal 212, thereby achieving separate control and management of each low-voltage load.

[0108] In one embodiment, as shown in FIG. 6 , the low-voltage battery 300 may be composed of a plurality of battery cells BAT.

[0109] In one embodiment, as shown in FIG6 , in the vehicle power distribution integrated architecture 800 of this embodiment, the first switch module 101 includes a first switch transistor Q1. The first switch transistor Q1 can be a bidirectional switch device. A first end of the first switch transistor Q1 is connected to the low-voltage battery 300, and a second end of the first switch transistor Q1 is connected to the second end of the third switch module 203. Both control ends of the first switch transistor 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 via the first switch module 101. When the first switch module 101 is in a first conduction condition, the low-voltage battery 300 supplies power to the first low-voltage load input 211 or the second low-voltage load input 212 via the first switch module 101. In this case, the low-voltage power input 400 cannot charge the low-voltage battery 300.

[0110] 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 .

[0111] 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 .

[0112] In some embodiments, the first switch Q1 may be a MOS device.

[0113] In some embodiments, as shown in FIG6 , 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 may 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 is in the first conduction condition and the third switch module 203 is 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. However, the current output by the low-voltage power input terminal 400 cannot pass through the third switch module 203.

[0114] 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 required power of the first low-voltage load access 211, the first switch module 101 and the third switch module 203 can be controlled to be in the first conduction condition, so that the low-voltage battery 300 compensates the power of the high-power low-voltage load connected to the first low-voltage load access terminal 211, thereby avoiding the problem of unstable power supply caused by excessive power connected to the low-voltage load.

[0115] In some embodiments, the third switch Q3 may be a MOS device.

[0116] In some embodiments, as shown in Figure 6, the second switch module 202 includes a second switch tube Q2, the first end of the second switch tube Q2 is connected to the low-voltage power input terminal 400, the second end of the second switch tube 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 tube Q2 is connected to the first end of the third switch module 203, and the control end of the second switch tube Q2 is connected to the controller 120. The second switch tube Q2 is turned on or off according to the control signal sent by the controller 120.

[0117] In some embodiments, the second switch transistor Q2 may be a MOS device.

[0118] In some embodiments, referring to FIG6 , the fourth switch module 204 includes a plurality of switch devices (switch devices Q1p, ..., switch devices Qnp), the first low-voltage load access terminal 211 includes a plurality of load access terminals (load access terminal L1p, ..., load access terminal Lnp), and the plurality of load access terminals (load access terminal L1p, ..., load access terminal Lnp) are respectively connected to the first terminal of the third switch module 203 via a plurality of switch devices (switch devices Q1p, ..., switch devices Qnp), and the plurality of switch devices (switch devices Q1p, ..., switch devices Qnp) are all controlled by the controller 120, and the controller 120 controls the switching state of each switch device to achieve the purpose of power distribution management for the low-voltage load connected to each load access terminal.

[0119] In some embodiments, as shown in Figure 6, the fifth switch module 205 includes multiple switching devices (switch devices Q1s, ..., switch devices Qns), the second low-voltage load access terminal 212 includes multiple load access terminals (load access terminals L1s, ..., load access terminals Lns), and the multiple load access terminals (load access terminals L1s, ..., load access terminals Lns) are respectively connected to the second end of the third switch module 203 via multiple switching devices (switch devices Q1s, ..., switch devices Qns). The multiple switching devices (switch devices Q1s, ..., switch devices Qns) are all controlled by the controller 120, and 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.

[0120] In some embodiments, the switching devices Q1s, . . . , the switching devices Qns, the switching devices Q1s, . . . , the switching devices Qns are all MOS devices.

[0121] In some embodiments, the first switch tube Q1, the second switch tube Q2, the third switch tube Q3, the switch device Q1s, ..., the switch device Qns are all MOS devices, and the first switch tube Q1, the second switch tube Q2, the third switch tube Q3, the switch device Q1s, ..., the switch device Qns and the controller 120 are integrated on the same circuit board, reducing the communication wiring harness set between the independent low-voltage power distribution system and the independent thermal management system, and there is no need to set up an independent controller and related SBC power supply chip, saving the number of chips used and reducing the probability of failure of the power supply and communication wiring harness in the vehicle's low-voltage power distribution system.

[0122] In some embodiments, as shown in FIG. 7 , the low-voltage power distribution module 200 and the battery management module 100 are integrated into the same circuit board 123 .

[0123] 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, and the battery management module 100 composed of the controller 120 and a part of its peripheral driving devices manages the status of the low-voltage battery, and the low-voltage power distribution module 200 composed of the controller 120 and another part of its peripheral driving devices performs power distribution control on 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 can avoid the problem that the original battery management module 100 and the low-voltage power distribution module 200 are independently set, resulting in a large number of wiring harnesses required to connect between the circuit boards, and reduce the probability of wiring harness failure by simplifying the lines.

[0124] In some embodiments, the external pins of the controller 120 can not only form a low-voltage distribution module 200 and a battery management module 100 with its peripheral driving devices, but also expand its external pins. For example, by soldering its external expansion pins to the expansion circuit on the circuit board 123 and connecting the expansion circuit on the circuit board 123 through multiple pads, the external expansion pins of the controller 120 can be functionally customized and reused to achieve the purpose of customization for vehicle functions.

[0125] In some embodiments, as shown in Figure 8, the vehicle power distribution integrated architecture also includes a vehicle heat sink 310, the circuit board 123 is arranged on the first side of the vehicle heat sink 310, and the low-voltage battery 300 is arranged 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, and the vehicle heat sink 310 is used to dissipate heat for the circuit board 123 and the low-voltage battery 300.

[0126] In this embodiment, the low-voltage battery 300 and the circuit board 123 are respectively arranged 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 volume of the vehicle can be reduced.

[0127] In some embodiments, as shown in Figure 9, the low-voltage battery assembly includes a product lower cover 125 and a product upper cover 126. The low-voltage battery 300 is arranged in the product lower cover 125. The product lower cover 125 has a concave structure. The product lower cover 125 and the product upper cover 126 form a storage cavity. The circuit board 123 and the vehicle heat sink 310 are arranged on the low-voltage battery 300. The circuit board 123 and the vehicle heat sink 310 are fixed by an installation structure. The distance between the circuit board 123, the vehicle heat sink 310 and the low-voltage battery 300 can be set according to the heat dissipation requirements and wiring harness requirements. In this embodiment, the battery management module 100, the low-voltage distribution module 200 and the low-voltage battery 300 are integrated into the low-voltage battery assembly, and a heat sink is provided on the side of the circuit board 123 close to the low-voltage battery 300. The side of the circuit board 123 close to the product cover 126 is used for welding the battery management module 100, the controller 120 in the low-voltage distribution module 200 and related power devices, and the shape of the product cover 126 is determined according to the shape of the controller 120 and the related power devices, so that the shape of the battery management module 100 and the low-voltage distribution module 200 matches the shape of the product cover 126. This not only reduces the volume of the vehicle's low-voltage distribution system, but also shortens the wiring harness distance between the low-voltage battery 300 and the battery management module 100, and also shortens the wiring harness distance between the low-voltage battery 300 and the low-voltage distribution module 200, thereby reducing the probability of failure of the power supply and communication wiring harness in the vehicle's low-voltage distribution system.

[0128] In some embodiments, the vehicle heat sink 310 can be a water-cooled plate, which is arranged between the circuit board 123 and the low-voltage battery 300. After the car is started, the heat emitted by the low-voltage battery 300 and the circuit board 123 is absorbed by the water-cooled plate, thereby improving the space utilization efficiency inside the vehicle and reducing the size and volume of the vehicle management system.

[0129] In some embodiments, the controller 120 has at least two cores.

[0130] In this embodiment, the controller 120 has at least two cores, and multiple functions of the controller 120 can be distributed to multiple cores to improve the processing efficiency of the controller 120.

[0131] 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 a corresponding control signal based on the control data to control the working state of the low-voltage battery 300.

[0132] In this embodiment, the controller 120 includes at least two cores, one or part of the cores can be used to process the sampling signal to obtain corresponding sampling data, and the other core or another part of the cores can be used to process the sampling data, obtain control data according to the preset operation, and generate a control signal based on the control data and output it to the peripheral driving device, thereby controlling the working state of the low-voltage battery 300 by controlling the working state of the driving device.

[0133] In some embodiments, at least one core of the controller 120 is used to process a 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 a corresponding control signal based on the control data to control the distribution power of the low-voltage load.

[0134] In this embodiment, the controller 120 includes at least two cores, one or part of the cores can be used to process the sampling signal to obtain corresponding sampling data, and the other core or another part of the cores can be used to process the sampling data, obtain control data according to the preset operation, and generate a control signal based on the control data and output it to the peripheral drive device, thereby controlling the distribution power of the low-voltage load by controlling the working state of the drive device.

[0135] In some embodiments, as shown in FIG. 10 , the vehicle power distribution integrated architecture includes an SBC power supply module 510 . The SBC power supply module 510 is connected to the controller 120 . The SBC power supply module 510 is used to supply power to the controller 120 .

[0136] In this embodiment, the SBC power supply module 510 within 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 use of wiring harnesses within the vehicle power distribution integrated architecture can be reduced, and the stability of the line can be improved.

[0137] 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 .

[0138] In this embodiment, the power input end of the SBC power supply module 510 can draw power from the low-voltage battery 300 or the low-voltage power input end 400 respectively. By converting the voltage input from the low-voltage battery 300 or the low-voltage power input end 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 requiring an additional wiring harness to draw power from an external power supply.

[0139] In some embodiments, the power input end of the SBC power supply module 510 can be connected to the low-voltage battery 300 and the low-voltage power input end 400 at the same time. An anti-backflow circuit is set between the power input end of the SBC power supply module 510 and the low-voltage battery 300. An anti-backflow circuit is set between the power input end of the SBC power supply module 510 and the low-voltage power input end 400, which can prevent the current backflow generated when the low-voltage battery 300 and the low-voltage power input end 400 output current, thereby improving the safety of the power supply circuit.

[0140] The power management chip (System Base Chip, SBC) is the provider of the operating voltage for the controller 120 and its peripheral devices. Without the SBC power supply, the peripheral devices of the controller cannot work. In this embodiment, the controller 120 and a part of the power devices form a battery management module 100, and the controller 120 and another part of the power devices form a low-voltage power distribution module 200. The controller 120 integrates the functions of managing the low-voltage battery 300 and the function of power distribution control for the low-voltage load. Therefore, the SBC power supply module 510 outputs multiple voltages according to the input power supply, which can power the controller 120 and its peripheral power devices. Only one SBC chip is needed to power the components of the low-voltage power distribution system of the entire vehicle, which not only saves the SBC chip, but also optimizes the low voltage. The power management solution of the power distribution system reduces the performance instability problem caused by inconsistent power supply voltage in the independent SBC solution, 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 a 3.3V independent power supply to power the controller 120. In addition, it can also output a 3.3V independent power supply to power the analog chip on the circuit board 123, and a 5V independent power supply to power the communication chip on the circuit board 123. The input power supply of the SBC power supply module 510 is consistent, which can improve the consistency of its output voltage.

[0141] In some embodiments, as shown in Figure 11, the vehicle power distribution integrated architecture also includes a sampling module 520, which 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 a sampling signal. The controller 120 is connected to the sampling module 520, and the controller 120 is also used to control the working state of the low-voltage battery 300 according to the sampling signal.

[0142] In this embodiment, multiple sampling nodes are set in the low-voltage battery 300, the battery management module 100, and the low-voltage power distribution module 200, and the voltages of the multiple sampling nodes are sampled to obtain sampling signals. The controller 120 determines whether the voltage of the sampling node corresponding to the sampling signal meets the working conditions of the current working state based on the received sampling signal, thereby controlling the working state of the low-voltage battery 300, so that the low-voltage battery 300 can adjust the working state of the low-voltage battery 300 in real time according to the electrical parameters of the low-voltage power distribution module 200 and the low-voltage battery 300, thereby reducing safety hazards caused by line failures.

[0143] In some embodiments, the sampling module 520 is used to sample current at the sampling nodes of the low-voltage battery 300, the battery management module 100, and the low-voltage 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.

[0144] In this embodiment, multiple sampling nodes are set in the low-voltage battery 300, the battery management module 100, and the low-voltage power distribution module 200, and the currents of the multiple sampling nodes are sampled to obtain sampling signals. The controller 120 determines whether the current of the sampling node corresponding to the sampling signal meets the working conditions of the current working state based on the received sampling signal, thereby controlling the working state of the low-voltage battery 300, so that the low-voltage battery 300 can adjust the working state of the low-voltage battery 300 in real time according to the electrical parameters of the low-voltage power distribution module 200 and the low-voltage battery 300, thereby reducing safety hazards caused by line faults.

[0145] 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. It is only necessary to sample the common node of the low-voltage power distribution module 200 and the battery management module 100 to sample their output current, which can save at least one current sampling chip.

[0146] In some embodiments, the sampling module 520 is used to perform current sampling and voltage sampling on the sampling nodes of the low-voltage battery 300, the battery management module 100, and the low-voltage 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.

[0147] In this embodiment, multiple sampling nodes are set in the low-voltage battery 300, the battery management module 100, and the low-voltage power distribution module 200, and the voltage or current of the multiple sampling nodes are sampled to obtain sampling signals. The controller 120 determines whether the voltage or current of the sampling node corresponding to the sampling signal meets the working conditions of the current working state based on the received sampling signal, thereby controlling the working state of the low-voltage battery 300, so that the low-voltage battery 300 can adjust the working state of the low-voltage battery 300 in real time according to the electrical parameters of the low-voltage power distribution module 200 and the low-voltage battery 300, thereby reducing safety hazards caused by line failures or failures of the low-voltage battery 300.

[0148] In some embodiments, the sampling module 520 can also set the temperatures of multiple sampling nodes of the low-voltage battery 300, the battery management module 100, and the low-voltage power distribution module 200 to sample and obtain corresponding sampling signals. The controller 120 determines whether the temperature of the sampling node corresponding to the sampling signal meets the working conditions of the current working state based on the received sampling signal, thereby controlling the working state of the low-voltage battery 300, so that the low-voltage battery can adjust the working state of the low-voltage battery 300 in real time according to the electrical parameters of the low-voltage power distribution module 200 and the low-voltage battery 300, thereby reducing safety hazards caused by line failures.

[0149] 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 there is no need to be affected by the outside world, which reduces the problem of information loss caused by message failure.

[0150] In some embodiments, the controller 120 is further configured to control the working state of the low-voltage power distribution module 200 according to the sampling signal.

[0151] In this embodiment, multiple sampling nodes are set in the low-voltage battery 300, the battery management module 100, and the low-voltage power distribution module 200, and the voltage or current of the multiple sampling nodes are sampled to obtain sampling signals. The controller 120 determines whether the voltage or current of the sampling node corresponding to the sampling signal meets the working conditions of the current working state based on the received sampling signal, thereby controlling the working state of the low-voltage battery 300, so that the low-voltage battery 300 can 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, thereby reducing safety hazards caused by line failures or failures of the low-voltage battery 300.

[0152] In some embodiments, when the low-voltage load access terminal 210 is connected to multiple low-voltage loads, 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.

[0153] In this embodiment, the multiple low-voltage load access terminals of the low-voltage power distribution module 200 can be respectively connected to multiple low-voltage loads consuming power. When multiple low-voltage loads consuming power 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 power on in time, thereby avoiding the problem of multiple low-voltage load access terminals 210 being powered on at the same time, which causes the output current to be too high and leads to safety hazards.

[0154] In some embodiments, as shown in Figure 12, 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 exchange information with the controller 120.

[0155] In this embodiment, the AFE module 530 is connected to the low-voltage battery 300 and the controller 120 at the same time. The AFE module 530 can collect information from the low-voltage battery 300 and exchange information with the controller 120.

[0156] In some embodiments, the controller 120 is connected to the AFE module 530 via a non-multiplexed synchronous serial communication interface.

[0157] In this embodiment, the controller 120 is connected to the AFE module 530 through a non-multiplexed synchronous serial communication interface, and high-speed full-duplex communication can be established between the controller 120 and the AFE module 530. The data pins of the controller 120 perform a set type of data transmission. For example, each communication module corresponds to an interactive function module and is not affected by other pins or modules.

[0158] In some embodiments, the output voltage of the low-voltage battery 300 ranges from 12V to 72V.

[0159] In some embodiments, the low-voltage battery 300 includes a 12-volt lithium-ion battery or a sodium-ion battery, or other rechargeable batteries.

[0160] In some embodiments, the low-voltage battery 300 includes a 24-volt lithium-ion battery or a sodium-ion battery, or other rechargeable batteries.

[0161] In some embodiments, the low-voltage battery 300 includes a 48-volt lithium-ion battery or a sodium-ion battery, or other rechargeable battery.

[0162] In some embodiments, the low-voltage battery 300 includes a 72V lithium-ion battery or a sodium-ion battery, or other rechargeable batteries.

[0163] In this embodiment, the vehicle power distribution integrated architecture in the embodiment of the present application can be applied to fuel vehicles and new energy vehicles, wherein the output voltage of the low-voltage battery in the vehicle does not exceed 72V.

[0164] An embodiment of the present application also provides a vehicle management system, which includes the vehicle power distribution integrated architecture as described in any one of the above embodiments.

[0165] 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 the fields of passenger cars or commercial vehicles.

[0166] An embodiment of the present application also provides a car, which includes the vehicle power distribution integrated architecture as described in any one of the above embodiments.

[0167] In this 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 one structural component, and the low-voltage power distribution module and the battery management module reuse the same controller, thereby optimizing the electrical architecture of the vehicle management system, simplifying the relevant components of the entire vehicle, and greatly reducing the cost of the entire vehicle.

[0168] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned functions can be distributed and completed by 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 embodiment can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0169] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0170] 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 function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0171] Units described as separate components may or may not be physically separate, and 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 these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0172] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0173] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A vehicle power distribution integrated architecture, characterized in that: include: Low-voltage battery, battery management module, low-voltage power distribution module; The low-voltage battery is electrically connected to the low-voltage power distribution module; The low-voltage power distribution module is provided with a low-voltage load access terminal for accessing a low-voltage load; 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 of the low-voltage load.

2. The vehicle power distribution integrated architecture according to claim 1, characterized in that: The vehicle power distribution integrated architecture further includes: A low-voltage power input terminal electrically connected to the low-voltage power distribution module, used to access the low-voltage power converted by the power battery; The low-voltage power distribution module is also used to distribute power to the low-voltage power supply.

3. The vehicle power distribution integrated architecture according to claim 2, characterized in that: 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.

4. The vehicle power distribution integrated architecture according to claim 3, characterized in that: The low-voltage battery is electrically connected to the low-voltage power distribution module via the first switch module.

5. The vehicle power distribution integrated architecture according to claim 3, characterized in that: The low voltage power distribution module further comprises: 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.

6. The vehicle power distribution integrated architecture according to claim 5, characterized in that: The second switch module is connected between the low-voltage power input terminal and the low-voltage load access terminal; and / or The second switch module is connected between the low-voltage power input terminal and the battery management module.

7. The vehicle power distribution integrated architecture according to claim 5, characterized in that: 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 current direction between the low-voltage power input terminal and the low-voltage battery.

8. The vehicle power distribution integrated architecture according to claim 7, characterized in that: The third switch module is connected between the second switch module and the first switch module.

9. The vehicle power distribution integrated architecture according to claim 7, characterized in that: The low-voltage load access terminal includes a first low-voltage load access terminal and a second low-voltage load access terminal; The first low-voltage load access terminal and the second low-voltage load access terminal are respectively connected to a first end and a second end of the third switch module.

10. The vehicle power distribution integrated architecture according to claim 9, characterized in that: The low voltage power distribution module also includes: 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; And, a fifth switch module connected to the second end of the third switch module and the second low-voltage load access end and controlled by the controller.

11. The vehicle power distribution integrated architecture according to any one of claims 1 to 10, characterized in that: The low-voltage power distribution module and the battery management module are integrated on the same circuit board.

12. The vehicle power distribution integrated architecture according to claim 11, characterized in that: The vehicle power distribution integrated architecture also includes a vehicle heat sink; the circuit board is arranged on a first side of the vehicle heat sink, and the low-voltage battery is arranged 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 for the circuit board and the low-voltage battery.

13. The vehicle power distribution integrated architecture according to any one of claims 1 to 10, characterized in that: The controller has at least two cores.

14. The vehicle power distribution integrated architecture according to claim 13, characterized in that: At least one core of the controller is used to process a 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 a corresponding control signal based on the control data to control the working state of the low-voltage battery and / or control the distribution power of the low-voltage load.

15. The vehicle power distribution integrated architecture according to any one of claims 1 to 10, characterized in that: The vehicle power distribution integrated architecture comprises: The SBC power supply module connected to the controller is used to supply power to the controller.

16. The vehicle power distribution integrated architecture according to claim 15, characterized in that: The power input end of the SBC power supply module is connected to the low-voltage battery and / or the low-voltage power input end, and the power output end of the SBC power supply module is connected to the controller.

17. The vehicle power distribution integrated architecture according to any one of claims 1 to 10, characterized in that: The vehicle power distribution integrated architecture further includes: A sampling module, 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 a sampling signal; 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.

18. The vehicle power distribution integrated architecture according to any one of claims 1 to 10, characterized in that: The controller controls multiple low-voltage load access terminals of the low-voltage power distribution module to be powered on in a time-sharing manner when multiple low-voltage loads are connected to the low-voltage load access terminal.

19. The vehicle power distribution integrated architecture according to claim 1, characterized in that The vehicle power distribution integrated architecture also includes: an AFE module connected to the low-voltage battery and the controller respectively, for collecting information from the low-voltage battery and exchanging information with the controller; the controller is connected to the AFE module via a non-multiplexed synchronous serial communication interface.

20. A vehicle management system, characterized in that: The vehicle management system includes a vehicle power distribution integrated architecture as described in any one of claims 1 to 19.

21. A car, characterized in that: The automobile comprises the vehicle power distribution integrated architecture as described in any one of claims 1 to 19.

Images