Integrated direct-drive thermal management controller architecture for vehicle, and vehicle management system and vehicle

Abstract

Disclosed in the present application are an integrated direct-drive thermal management controller architecture for a vehicle, and a vehicle management system and a vehicle. The integrated direct-drive thermal management controller architecture for a vehicle comprises: a low-voltage battery, a battery management module and a thermal management module, wherein the low-voltage battery is connected to the battery management module, the thermal management module is configured with a load connection end which is used for being connected to a thermal management load, and the battery management module and the thermal management module share the same controller. The function of managing the low-voltage battery and the function of managing the thermal management load are integrated into the controller, so that a control module in a battery management scheme, and a control module and a drive module in a thermal management scheme are creatively integrated into the same controller, thereby simplifying a control circuit. The present application has the characteristics of low costs, simple architecture, etc.

Description

Vehicle integrated direct drive thermal management controller architecture, vehicle management system, automobile

[0001] This application refers to Chinese Patent Application No. 202311166093.0 filed on September 8, 2023, entitled “Vehicle Integrated Direct Drive Thermal Management Controller 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-integrated direct-drive thermal management controller 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 thermal management 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 uses discrete low-voltage lithium-ion battery technology, and a separate thermal management system is installed on other circuit boards. These two products are set up independently, which not only has problems such as large size and inability to integrate control, but also requires the design of more redundant components for the two systems, increasing system costs. Technical issues

[0005] In view of the above problems, the present application provides a vehicle-integrated direct-drive thermal management controller architecture, a vehicle management system, and a vehicle, which can solve the problem that the current vehicle power supply architecture is large in size and cannot be integrated and controlled due to the independent settings of the battery management system and the thermal management system, thereby increasing the system cost. Technical Solutions

[0006] A first aspect of an embodiment of the present application provides a vehicle integrated direct drive thermal management controller architecture, comprising: a low voltage battery, a battery management module, and a thermal management module;

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

[0008] The thermal management module is configured with a load access terminal for accessing a thermal management load;

[0009] The battery management module and the thermal management module share a same controller, and the controller integrates functions of managing the low-voltage battery and the thermal management load.

[0010] In the technical solution of the embodiment of the present application, the thermal management module is configured with a load access terminal for accessing the thermal management load, the battery management module manages the charging and discharging process of the low-voltage battery, the thermal management module is controlled by the controller to manage the thermal management load, the battery management module and the thermal management module share the same controller, and by integrating the function of managing the low-voltage battery and the function of managing the thermal management load in the controller, the control modules in the battery management scheme and the thermal management scheme are creatively integrated into the same controller, which simplifies the control circuit and has the characteristics of low cost and simple architecture.

[0011] In some embodiments, the battery management module includes: a first switch module controlled by the controller;

[0012] The first switch module is used to manage the charging and discharging process of the low-voltage battery under the control of the controller.

[0013] 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 charging and discharging operations of the low-voltage battery, so that the thermal management module can reuse the first switch module, and the first switch module performs power distribution management on the thermal management module, thereby reducing the wiring harness between the thermal management 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.

[0014] In some embodiments, the low-voltage battery is electrically connected to the thermal management module via the first switch module.

[0015] In the technical solution of the embodiment of the present application, the first switch module is connected between the low-voltage battery and the thermal management module. The low-voltage battery is electrically connected to the thermal management 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 thermal management module. The first switch module controls the power distribution output of the thermal management module, so that the thermal management module and the battery management module can reuse the first switch module, reducing the wiring harness between the thermal management 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.

[0016] In some embodiments, the controller is further connected to the thermal management load, and the controller is configured to send a thermal management control signal to the thermal management load to manage the thermal management load.

[0017] In the technical solution of the embodiment of the present application, the controller can be directly connected to the thermal management load and send a thermal management control signal to the thermal management load. The thermal management load can adjust its own state according to the received thermal management control signal to achieve the purpose of thermal management of the vehicle under the condition of sharing the same controller with the battery management module.

[0018] In some embodiments, the thermal management module further includes: a plurality of thermal management drive units;

[0019] The thermal management driving unit is used to manage the thermal management load according to the thermal management control instruction sent by the controller.

[0020] In the technical solution of the embodiment of the present application, the load access end is connected to multiple thermal management loads, and each thermal management drive unit controls the state of the corresponding thermal management load according to the thermal management control instructions sent by the controller. The thermal management load does not need to be connected to a separate power supply or a separate control line, thereby realizing direct driving of the thermal management load, simplifying the circuit layout of the thermal management load, and reducing the thermal management load path.

[0021] In some embodiments, the thermal management module further comprises: a thermal management power distribution unit;

[0022] The thermal management power distribution unit is connected to the battery management module and is used to perform power distribution management on the plurality of thermal management drive units according to the power distribution instructions sent by the controller.

[0023] In the technical solution of the embodiment of the present application, the thermal management distribution unit can perform power distribution management on multiple thermal management drive units according to the power distribution instructions sent by the controller, the load access end can connect to multiple thermal management loads, and each thermal management drive unit controls the state of the corresponding thermal management load according to the thermal management control instructions sent by the controller, thereby realizing direct drive thermal management control of the vehicle.

[0024] In some embodiments, the thermal management module further includes a plurality of sensor units, which are used to sample sampling nodes in the thermal management load to obtain thermal management sampling signals and send them to the controller; the controller is also used to adjust the state of the thermal management drive unit according to the thermal management sampling signals.

[0025] In the technical solution of the embodiment of the present application, the thermal management load is sampled by the sensor unit to obtain the working status of the thermal management load, and the controller determines whether the thermal management load is working abnormally based on the thermal management sampling signal obtained by sampling, and adjusts the status of the thermal management drive unit in real time to reduce the probability of safety hazards in the entire vehicle.

[0026] In some embodiments, the thermal management drive unit includes at least one of a motor water pump control unit, a battery water pump control unit, an air conditioning water pump control unit, a fan control unit, a water valve control unit, an air intake grille control unit, an expansion valve control unit, a stop valve control unit, a stepper motor control unit, and a blower control unit;

[0027] The motor water pump control unit is controlled by the controller and is used to control and drive the motor water pump;

[0028] The battery water pump control unit is controlled by the controller and is used to control and drive the battery water pump;

[0029] The air conditioning water pump control unit is controlled by the controller and is used to control and drive the air conditioning water pump;

[0030] The fan control unit is controlled by the controller and is used to control and drive the electronic fan;

[0031] The water valve control unit is controlled by the controller and is used to control and drive the water valve;

[0032] The air intake grille control unit is controlled by the controller and is used to control and drive the active air intake grille;

[0033] The expansion valve control unit is controlled by the controller and is used to control and drive the expansion valve;

[0034] The stop valve control unit is controlled by the controller and is used to control and drive the stop valve;

[0035] The stepper motor control unit is controlled by the controller and is used to control and drive the single and bipolar stepper motor dampers;

[0036] The blower control unit is controlled by the controller and is used to control and drive the blower.

[0037] In some embodiments, the vehicle integrated direct drive thermal management controller architecture further includes:

[0038] a sampling module, configured to perform voltage sampling and / or current sampling on sampling nodes of the battery management module and the thermal management module and generate electrical parameter sampling signals;

[0039] 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 electrical parameter sampling signal.

[0040] In the technical solution of the embodiment of the present application, multiple sampling nodes are set in the battery management module and the thermal management module, and the voltage or current of the multiple sampling nodes are sampled to obtain electrical parameter sampling signals. The controller determines whether the voltage or current of the sampling node corresponding to the electrical parameter sampling signal meets the working conditions of the current working state based on the received electrical parameter sampling signal, thereby controlling the working state of the low-voltage battery, so that the low-voltage battery can adjust the working state of the low-voltage battery in real time according to the electrical parameters of the sampling nodes in the battery management module and the thermal management module, reducing the safety hazards caused by the current or voltage in the line exceeding the safety threshold.

[0041] In some embodiments, the controller is further configured to control the operating state of the thermal management module according to the electrical parameter sampling signal.

[0042] In the technical solution of the embodiment of the present application, multiple sampling nodes are set in the battery management module and the thermal management module, and the voltage or current of the multiple sampling nodes are sampled to obtain electrical parameter sampling signals. The controller determines whether the voltage or current of the sampling node corresponding to the electrical parameter sampling signal meets the working conditions of the current working state based on the received electrical parameter sampling signal, thereby controlling the working state of the thermal management module, so that the thermal management module can adjust the working state in real time according to the electrical parameter sampling signal, control the working state of the thermal management load, and reduce safety hazards caused by the current or voltage in the line exceeding the safety threshold.

[0043] In some embodiments, the sampling module is further configured to perform temperature sampling on sampling nodes of the low-voltage battery and the thermal management load to obtain temperature sampling signals;

[0044] The controller is further configured to control the operating state of the low-voltage battery according to the temperature sampling signal.

[0045] In the technical solution of the embodiment of the present application, the controller 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 temperature sampling signal, thereby controlling the working states of the battery management module and the thermal management module, so that the battery management module and the thermal management module can adjust their working states in real time according to the temperature of their sampling nodes, thereby reducing safety hazards caused by line faults.

[0046] In some embodiments, the vehicle integrated direct drive thermal management controller architecture further includes:

[0047] A low-voltage power input terminal electrically connected to the battery management module, for receiving the low-voltage power converted by the power battery;

[0048] The battery management module is further configured to control the charging and discharging of the low-voltage battery according to the low-voltage power supply.

[0049] 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. The battery management module controls the working state of the low-voltage battery according to the low-voltage power supply to achieve the purpose of protecting the battery and the load.

[0050] In some embodiments, the battery management module and the thermal management module are integrated into the same circuit board.

[0051] In the technical solution of the embodiment of the present application, the battery management module and the thermal management module share the same controller. The battery management module composed of the controller and some of its peripheral driving devices manages the status of the low-voltage battery. The thermal management module composed of the controller and the thermal driving devices manages the thermal management load. The battery management module and the thermal management module are integrated on the same circuit board, which is conducive to simplifying the circuit and reducing the probability of wiring harness failure.

[0052] In some embodiments, the vehicle integrated direct-drive thermal management controller 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, and the second side of the vehicle heat sink is opposite to the first side of the vehicle heat sink.

[0053] In the technical solution of the embodiment of the present application, the circuit board and the low-voltage battery are respectively arranged on both sides of the same vehicle heat sink. By sharing the same vehicle heat sink, the heat dissipation efficiency inside the vehicle can be improved and the volume of the vehicle can be reduced.

[0054] In some embodiments, the controller has at least two cores.

[0055] 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.

[0056] 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 working state of the thermal management load.

[0057] 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 working state of the thermal management module by controlling the working state of the thermal drive device.

[0058] In some embodiments, the vehicle integrated direct drive thermal management controller architecture includes:

[0059] An SBC power supply module connected to the controller is used to power the controller; the power input end of the SBC power supply module is respectively connected to the low-voltage battery and the low-voltage power input end, and the power output end of the SBC power supply module is connected to the controller.

[0060] In the technical solution of the embodiment of the present application, an SBC power supply module is integrated in the battery management module, which is used to power the controller. The power source of the SBC power supply module can be a low-voltage battery; the power input end of the SBC power supply module can draw power from the low-voltage battery or the 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.

[0061] In some embodiments, when multiple thermal management loads are connected to the load access terminal, the controller controls the multiple load access terminals of the battery management module to be powered on in a time-sharing manner.

[0062] In the technical solution of the embodiment of the present application, the multiple load access terminals of the battery management module can be respectively connected to multiple power loads. When multiple power loads are connected, the controller can increase the output current of the battery management module by controlling the multiple load access terminals to power on in time, thereby avoiding the problem of multiple load access terminals being powered on at the same time, which causes the output current to be too high and leads to safety hazards.

[0063] In some embodiments, the vehicle integrated direct-drive thermal management controller 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.

[0064] 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, and the AFE module can be used to collect information from the low-voltage battery and exchange information with the controller.

[0065] In some embodiments, the controller is connected to the AFE module via a non-multiplexed synchronous serial communication interface.

[0066] In the technical solution of the embodiment of the present application, the controller is connected to the AFE module through a non-multiplexed synchronous serial communication interface, and high-speed full-duplex communication can be established between the controller and the AFE module. The data pin of the controller performs 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.

[0067] In some embodiments, the battery management module includes: a first switch module controlled by the controller;

[0068] The low-voltage battery is electrically connected to the load access terminal via the first switch module.

[0069] In the technical solution of the embodiment of the present application, the first switch module is connected between the low-voltage battery and the battery management module. The first switch module is controlled by the controller. 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 battery management module and the thermal management module can reuse the first switch module, reducing the wiring harness between the battery management modules and reducing the problem of safety hazards caused by short circuits in the wiring harnesses between different circuit boards.

[0070] A second aspect of the embodiments of the present application further provides a vehicle management system, which includes a vehicle integrated direct-drive thermal management controller architecture as described in any one of the above embodiments.

[0071] A third aspect of the embodiments of the present application further provides a vehicle, comprising a vehicle integrated direct-drive thermal management controller architecture as described in any one of the above embodiments.

[0072] 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

[0073] In the technical solution of the embodiments of the present application, by integrating the vehicle integrated direct-drive thermal management controller architecture described in any of the above embodiments into the automobile, the battery management module and the thermal management module can be integrated into one structural component, and the battery management module and the thermal management module reuse the same controller, thereby optimizing the electrical architecture of the vehicle's power distribution system, simplifying the relevant components of the entire vehicle, and greatly reducing the cost of the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] 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:

[0075] FIG1 is a schematic diagram of a first structural embodiment of a vehicle integrated direct-drive thermal management controller architecture provided by an embodiment of the present application;

[0076] FIG2 is a schematic diagram of a second structural embodiment of a vehicle integrated direct-drive thermal management controller architecture provided by an embodiment of the present application;

[0077] FIG3 is a schematic diagram of a third structure of a vehicle integrated direct-drive thermal management controller architecture provided by an embodiment of the present application;

[0078] FIG4 is a fourth structural diagram of a vehicle integrated direct-drive thermal management controller architecture provided by an embodiment of the present application;

[0079] FIG5 is a schematic diagram of a fifth structural embodiment of a vehicle integrated direct-drive thermal management controller architecture provided by an embodiment of the present application;

[0080] FIG6 is a sixth structural diagram of a vehicle integrated direct-drive thermal management controller architecture provided by an embodiment of the present application;

[0081] FIG7 is a seventh structural diagram of a vehicle integrated direct-drive thermal management controller architecture provided by an embodiment of the present application;

[0082] FIG8 is a schematic diagram of an eighth structural embodiment of a vehicle integrated direct-drive thermal management controller architecture provided by an embodiment of the present application;

[0083] FIG9 is a ninth structural diagram of the vehicle integrated direct-drive thermal management controller architecture provided in an embodiment of the present application. Modes for Carrying Out the Invention

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] In the description of the embodiments of the present application, the term "multi-frame" refers to two or more (including two).

[0090] 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.

[0091] In related technologies, low-voltage power distribution systems use discrete low-voltage lithium-ion battery technology, while separate thermal management systems are installed on other circuit boards. These two products are independently configured, resulting in not only large size and the inability to integrate control, but also the need to design a large number of redundant components for both systems, increasing system costs. For example, in current vehicle power supply, 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 functional module. Similarly, each functional module requires an independent SBC module to power the controller, and an independent AFE module is required to establish communication between the control module and the host computer. The related control architecture not only requires a large number of wiring harnesses, but also has the problems of large size and inconvenient maintenance.

[0092] To solve the above technical problems, an embodiment of the present application provides a vehicle-integrated direct-drive thermal management controller architecture, which includes: a low-voltage battery 300, a battery management module 100, and a thermal management module 900; the low-voltage battery 300 is connected to the battery management module 100, and the battery management module 100 manages the charging and discharging of the low-voltage battery 300. By configuring a load access terminal 210 for accessing a thermal management load in the thermal management module 900, the thermal management module 900 manages the operation of the thermal management load. The thermal management module 900 can control the operating state of the thermal management load, wherein the battery management module 100 and the thermal management module 900 share the same controller 120, and the controller 120 integrates the functions of managing the low-voltage battery 300 and the thermal management load.

[0093] In this embodiment, the thermal management load can be used to control the temperature of various nodes of the vehicle. For example, the thermal management load includes an air conditioning water pump, a motor water pump, etc. The air conditioning water pump is used to adjust the temperature of the vehicle air conditioner, and the motor water pump is used to adjust the temperature of the vehicle motor. The battery management module 100 and the thermal management module 900 share the same controller 120, that is, the battery management module 100 and the thermal management module 900 include the same controller 120. The battery management module 100 manages the charging and discharging of the low-voltage battery 300. For example, the battery management module 100 configures the output power of the low-voltage battery 300 according to the power demand of the output end of the battery management module 100, and can also charge the low-voltage battery 300 when an external power supply is connected. The thermal management module 900 manages the thermal management load. By integrating the functions of managing the low-voltage battery 300 and the thermal management load into the controller 120, the control modules in the battery management solution and the thermal management solution are creatively integrated into the same controller 120, and the reusable parts of the battery management solution and the thermal management solution are integrated, which simplifies the control circuit and has the characteristics of low cost and simple architecture.

[0094] In some specific application embodiments, in the vehicle low-voltage power distribution system, the controller 120 and a part of the power devices constitute a battery management module 100. In the vehicle thermal management system, the controller 120 and its external thermal management drive unit constitute a thermal management module 900. In this embodiment, the vehicle low-voltage power distribution system and the vehicle thermal management system are integrated, and the control and management of the vehicle low-voltage power distribution system and the thermal management system are realized by the same controller 120. By integrating the functions of managing the low-voltage battery 300 and the thermal management load and the power distribution control of the low-voltage load into the controller 120, not only the communication wiring harness between the independent low-voltage power distribution system and the independent thermal management system is reduced, but also there is no need to set up an independent controller and related SBC power supply chip, which saves the number of chips used and reduces the probability of failure of the power supply and communication wiring harness in the vehicle low-voltage power distribution system.

[0095] In this embodiment, the controller 120 integrates the function of managing the low-voltage battery 300 and the thermal management load. After the vehicle is started, the controller 120 can manage the energy output of the vehicle's low-voltage power distribution system based on the vehicle's thermal management feedback information, and can also manage the working state of the thermal management load based on the energy output of the vehicle's low-voltage power distribution system, so that the vehicle's low-voltage power distribution system and the vehicle's thermal management system are adapted to each other based on the vehicle's current condition, thereby improving the power utilization efficiency and power supply stability of the vehicle's low-voltage power distribution system.

[0096] In some specific application embodiments, the controller 120 and a part of the power devices constitute a battery management module 100, and the controller 120 and the thermal management drive unit constitute a thermal management module 900. There is no need for a large fuse box, and the battery management module 100, the thermal management module 900 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 power distribution system and the vehicle's thermal management system, but also shortens the wiring harness distance between the low-voltage battery 300 and the battery management module 100, thereby reducing the probability of failure of the power supply and communication wiring harnesses in the vehicle's low-voltage power distribution system and thermal management system.

[0097] In some embodiments, the battery management module 100 can be configured with multiple load access terminals 210. The multiple load access terminals 210 can be used not only to connect thermal management loads, but also to connect other low-voltage loads (such as sensors or other small current power loads), and the output power of the load access terminal 210 can be controlled by the battery management module 100.

[0098] In some embodiments, the thermal management module 900 may be powered by the low-voltage battery 300 or an external low-voltage power source.

[0099] In this embodiment, the vehicle integrated direct-drive thermal management controller architecture in this embodiment may further include a low-voltage power input terminal, which may be connected to a low-voltage power supply converted by a power battery. The thermal management module 900 may be powered by a low-voltage battery 300 or a low-voltage power supply, for example, the DC power output by the low-voltage battery 300 or the low-voltage power supply may be output to the load access terminal 210, and output to the thermal management load via the load access terminal 210.

[0100] 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 .

[0101] 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.

[0102] In some specific application embodiments, the first switch module 101 and the controller 120 constitute a battery management module 100, and the low-voltage battery 300 is connected to the low-voltage power distribution module 200 via the first switch module 101. By connecting the low-voltage battery 300 and the low-voltage power distribution module 200 through the first switch module 101, not only can the low-voltage power distribution module 200 reuse the first switch module 101 to regulate and manage the current input to the low-voltage power distribution module 200, but also the low-voltage battery 300 can be short-circuited to reduce safety hazards caused by failures of the low-voltage battery 300.

[0103] 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 .

[0104] 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.

[0105] In some embodiments, the controller 120 is further connected to a thermal management load, and the controller 120 is configured to send a thermal management control signal to the thermal management load to manage the thermal management load.

[0106] In this embodiment, the controller 120 can be directly connected to the thermal management load and send a thermal management control signal to the thermal management load. The thermal management load can adjust its own state according to the received thermal management control signal to achieve the purpose of thermal management of the vehicle under the condition of sharing the same controller with the battery management module 100.

[0107] In some embodiments, the thermal management module 900 includes a plurality of thermal management driving units, and the thermal management driving units are used to manage the thermal management load according to the thermal management control instructions sent by the controller 120 .

[0108] In this embodiment, the load access terminal 210 is connected to multiple thermal management loads, and each thermal management drive unit controls the state of the corresponding thermal management load according to the thermal management control instructions sent by the controller. The thermal management load does not need to be connected to a separate power supply or a separate control line, thereby realizing direct drive of the thermal management load, simplifying the circuit layout of the thermal management load, and reducing the thermal management load path.

[0109] In one embodiment, the thermal management module 900 further includes a thermal management power distribution unit, which is connected to the battery management module 100 and manages power distribution for the multiple thermal management drive units according to the power distribution instructions sent by the controller 120 .

[0110] In this embodiment, the thermal management power distribution unit can perform power distribution management on multiple thermal management drive units according to the power distribution instructions sent by the controller. The load access terminal 210 is connected to multiple thermal management loads. Each thermal management drive unit controls the state of the corresponding thermal management load according to the thermal management control instructions sent by the controller. The thermal management load does not need to be connected to a separate power supply or a separate control line, thereby realizing direct drive of the thermal management load, simplifying the line layout of the thermal management load, and reducing the thermal management load path.

[0111] In some embodiments, the thermal management module 900 further includes a thermal management power distribution unit, which is connected to the battery management module 100 and manages power distribution for multiple thermal management drive units according to power distribution instructions sent by the controller.

[0112] In this embodiment, the thermal management distribution unit can perform power distribution management on multiple thermal management drive units according to the power distribution instructions sent by the controller 120. The load access terminal 210 can connect to multiple thermal management loads. Each thermal management drive unit controls the state of the corresponding thermal management load according to the thermal management control instructions sent by the controller 120, thereby realizing direct drive thermal management control of the vehicle.

[0113] In some embodiments, the thermal management distribution unit may include multiple power devices, which form a switching circuit. The switching circuit is used to output the low-voltage direct current output by the low-voltage battery 300 to multiple thermal management drive units, and is controlled by the controller 120 to manage the power supply status of each thermal management drive unit.

[0114] In some embodiments, the thermal management module 900 further includes a plurality of sensor units, which are used to sample sampling nodes in the thermal management load to obtain thermal management sampling signals and send them to the controller 120. The controller 120 is also used to adjust the state of the thermal management drive unit according to the thermal management sampling signals.

[0115] In this embodiment, the thermal management load is sampled by the sensor unit to obtain the working status of the thermal management load, and the controller determines whether the thermal management load is working abnormally based on the thermal management sampling signal obtained by the sampling, and adjusts the status of the thermal management drive unit in real time to reduce the probability of safety hazards in the entire vehicle.

[0116] In some embodiments, the thermal management drive unit includes at least one of a motor water pump control unit, a battery water pump control unit, an air conditioning water pump control unit, a fan control unit, a water valve control unit, an air intake grille control unit, an expansion valve control unit, a shut-off valve control unit, a stepper motor control unit, and a blower control unit.

[0117] Specifically, the motor water pump control unit is controlled by the controller 120, and the motor water pump control unit is used to control and drive the motor water pump; the battery water pump control unit is controlled by the controller 120, and the battery water pump control unit is used to control and drive the battery water pump; the air conditioning water pump control unit is controlled by the controller 120, and the air conditioning water pump control unit is used to control and drive the air conditioning water pump; the fan control unit is controlled by the controller 120, and the fan control unit is used to control and drive the electronic fan; the water valve control unit is controlled by the controller 120, and the water valve control unit is used to control and drive the water valve; the air intake grille control unit is controlled by the controller 120, and the air intake grille control unit is used to control and drive the active air intake grille; the expansion valve control unit is controlled by the controller 120, and the expansion valve control unit is used to control and drive the expansion valve; the stop valve control unit is controlled by the controller 120, and the stop valve control unit is used to control and drive the stop valve; the stepper motor control unit is controlled by the controller 120, and the stepper motor control unit is used to control and drive the single and bipolar stepper motor damper; the blower control unit is controlled by the controller 120, and the blower control unit is used to control and drive the blower.

[0118] In some embodiments, the motor water pump control unit, the battery water pump control unit, the air conditioning water pump control unit, the fan control unit, the water valve control unit, the air intake grille control unit, the expansion valve control unit, the stop valve control unit, the stepper motor control unit, and the blower control unit can be switching devices, or they can be full-bridge drive circuits or half-bridge drive circuits.

[0119] The full-bridge drive circuit can also be called an H-bridge drive circuit. It has a total of four switch arms, which can be MOS tubes or transistors. The four switch arms are controlled by the controller 120. The controller 120 provides corresponding drive control signals to control the switching states of the four switch arms, thereby controlling the drive current output by the full-bridge drive circuit and achieving the purpose of managing the thermal management load connected to the full-bridge drive circuit.

[0120] In the field of power electronics, a full-bridge drive circuit controls the on / off switching of four switching transistors (such as MOS transistors and transistors) to force the motor to switch frequency and direction. Its control signal can be modulated using PWM, enabling variable motor speed and direction control. A half-bridge drive controls the on / off switching of two switching transistors to control motor speed and direction. This control signal can also be modulated using PWM. Half-bridge drives are suitable for low-power motors, such as electronic fans.

[0121] Half-bridge gate drivers are widely used in various power control applications such as AC drives and DC-DC converters. Both full-bridge and half-bridge drivers are circuits used to control motors or other loads. They use MOSFET tubes as switches to control the current of thermal management loads.

[0122] In some embodiments, the thermal management load includes at least one of a motor water pump, a battery water pump, an air conditioning water pump, an electronic fan, a water valve, an active air intake grille, an expansion valve, a shut-off valve, a single and bipolar stepper motor damper, and a blower.

[0123] In some embodiments, as shown in Figure 2, the vehicle integrated direct-drive thermal management controller architecture also includes a sampling module 520, which is used to sample the voltage of the sampling nodes of the battery management module 100 and the thermal management module 900 and generate electrical parameter sampling signals; 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 electrical parameter sampling signal.

[0124] In this embodiment, by setting multiple sampling nodes in the battery management module 100 and the thermal management module 900 and sampling the voltages of the multiple sampling nodes to obtain corresponding electrical parameter sampling signals, the status of the low-voltage battery 300 and the thermal management load is monitored. The controller 120 determines whether the voltage of the sampling node corresponding to the electrical parameter sampling signal meets the working conditions of the current working state based on the received electrical parameter sampling signal. The controller 120 controls the working state of the battery management module 100, so that the battery management module 100 can adjust the parameters of the low-voltage battery 300 in real time based on the electrical parameters of the sampling nodes, thereby reducing the safety hazards caused by the voltage in the line exceeding the safety threshold. For example, when the voltage of the input node of the battery management module 100 is undervoltage, the battery management module 100 increases the output voltage or output current of the low-voltage battery 300, thereby increasing the output power of the low-voltage battery 300 according to the power demand of the load end.

[0125] In some embodiments, the sampling module 520 is used to sample current at the sampling nodes of the battery management module 100 and the thermal management module 900 and generate electrical parameter sampling signals; the controller 120 is also used to control the working state of the battery management module 100 according to the electrical parameter sampling signals.

[0126] In this embodiment, by setting multiple sampling nodes in the battery management module 100 and the thermal management module 900 and sampling the currents of the multiple sampling nodes to obtain electrical parameter 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 electrical parameter sampling signals, thereby controlling the working state of the battery management module 100, so that the battery management module 100 can adjust the working state of the low-voltage battery 300 in real time based on the electrical parameters of the low-voltage battery 300 and the thermal management module 900, thereby reducing safety hazards caused by line faults. For example, when the current of the input node of the battery management module 100 is too high, the charging current of the battery management module 100 to the low-voltage battery 300 can be reduced by controlling the working state of the battery management module 100, thereby reducing the risk of safety hazards of the battery caused by excessive charging current.

[0127] 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 thermal management module 900 and generate electrical parameter sampling signals. The controller 120 is also used to control the working state of the battery management module 100 according to the electrical parameter sampling signals.

[0128] In this embodiment, multiple sampling nodes are set in the low-voltage battery 300, the battery management module 100, and the thermal management module 900, 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 battery management module 100, so that the battery management module 100 can adjust the working state in real time according to the electrical parameters of the low-voltage battery 300, the battery management module 100, and the thermal management module 900, thereby reducing safety hazards caused by line faults or failures of the low-voltage battery 300.

[0129] For example, when the voltage of the output node of the battery management module 100 is undervoltage, or the output node of the battery management module 100 is overloaded, by controlling the working state of the battery management module 100, the low-voltage battery 300 and the low-voltage power input terminal 400 can be connected at the same time, thereby increasing the input power of the battery management module 100, achieving the purpose of adjusting the input power according to the load demand power of the output terminal, and reducing the risk of safety hazards caused by output terminal overload.

[0130] In some embodiments, the controller 120 is further configured to control the working state of the thermal management module 900 according to the electrical parameter sampling signal.

[0131] In this embodiment, multiple sampling nodes are set in the low-voltage battery 300, the battery management module 100, and the thermal management module 900, 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 thermal management drive unit, so that the thermal management drive unit can adjust the working state in real time according to the sampling signal, control the working state of the thermal management load, and reduce the safety hazards caused by overload of the thermal management load.

[0132] In some embodiments, the sampling module 520 is further used to perform temperature sampling on the sampling nodes of the low-voltage battery 300 and the thermal management load to obtain a temperature sampling signal; the controller 120 is further used to control the working state of the low-voltage battery 300 according to the temperature sampling signal.

[0133] In this embodiment, the controller 120 determines whether the temperature of the sampling node corresponding to the received temperature sampling signal meets the working conditions of the current working state, thereby controlling the working state of the battery management module 100 and the thermal management module 900, so that the battery management module 100 and the thermal management module 900 can adjust their working state in real time according to the temperature of their sampling nodes, thereby reducing safety hazards caused by excessive temperature in the vehicle.

[0134] In some embodiments, as shown in Figure 3, the vehicle integrated direct-drive thermal management controller architecture in this embodiment also includes a low-voltage power input terminal 400, which is electrically connected to the battery management module 100. The low-voltage power input terminal 400 can be used to access the low-voltage power converted by the power battery. The battery management module 100 controls the charging of the low-voltage battery according to the input low-voltage power supply, and can also distribute the power of the input low-voltage power supply and output it to the load access terminal 210.

[0135] 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. The battery management module 100 distributes the low-voltage power supply to the load access terminal 210. For example, in the case of multiple load access terminals 210, power distribution is performed according to the power demand of the load connected to each load access terminal 210. Power distribution can also be performed according to the working status of the connected 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 load.

[0136] In some embodiments, as shown in FIG. 4 , the vehicle integrated direct-drive thermal management controller architecture includes a circuit board 125 , the battery management module 100 and the thermal management module 900 are integrated on the circuit board 125 , and the controller 120 is also integrated on the circuit board 125 .

[0137] In this embodiment, since the battery management module 100 and the thermal management module 900 share the same controller 120, the controller 120 and the thermal driver device constitute the thermal management module 900, and the controller 120 and the other driver devices constitute the battery management module 100. The controller 120 is soldered to the circuit board 125 and connected to the thermal driver device and the driver device via traces on the circuit board. The controller 120 sends thermal drive control signals to the thermal driver device to perform the function of thermal management load management, which can reduce packet loss caused by data communication between circuit boards. The battery management module 100, composed of the controller 120 and a portion of its peripheral driver devices, manages the status of the low-voltage battery 300 and implements charge and discharge management of the low-voltage battery 300. This avoids the problem of the original independent configuration of the battery management module 100 and the thermal management module 900, which requires a large number of wiring harnesses to connect the circuit boards. By simplifying the wiring, the probability of wiring harness failure is reduced.

[0138] In some embodiments, the external pins of the controller 120 can not only form a battery management module 100 with the driving device on the circuit board 125, and form a thermal management module 900 with the thermal driving device on the circuit board 125, but can also form a low-voltage power distribution module with its peripheral related devices to achieve the effect of expanding the driving scheme.

[0139] In some embodiments, the controller 120 can also expand its external pins. For example, by soldering its external expansion pins to the expansion circuit on the circuit board 125 and connecting the expansion circuit on the circuit board 125 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.

[0140] In some embodiments, as shown in Figure 5, the vehicle integrated direct-drive thermal management controller architecture also includes a vehicle heat sink 310, the low-voltage battery 300 is arranged on the first side of the vehicle heat sink 310, and the circuit board 125 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 125 and the low-voltage battery 300.

[0141] In this embodiment, the circuit board 125 and the low-voltage battery 300 are respectively arranged on both sides of the same vehicle heat sink 310. By sharing the same vehicle heat sink 310 with the circuit board 125 and the low-voltage battery 300, the heat dissipation efficiency inside the vehicle can be improved and the volume of the vehicle can be reduced.

[0142] In this embodiment, the thermal drive device on the circuit board 125 is connected to the thermal management load, and the thermal management load is set at multiple positions of the entire vehicle. By integrating the battery management module 100 and the thermal management module 900 on the circuit board 125, not only can the wiring harness length between the thermal drive device and the controller 120 be reduced, but also the temperature of the low-voltage battery 300 can be managed by integrating relevant thermal drive devices on the circuit board 125, thereby reducing the signal transmission distance and reducing the volume of the vehicle.

[0143] In some embodiments, as shown in Figure 6, the low-voltage battery 300 is arranged in the product lower cover 127, the product lower cover 127 has a concave structure, and the product lower cover 127 and the product upper cover 126 are detachably connected. The product lower cover 127 and the product upper cover 126 form a storage cavity after assembly and connection. The circuit board 125, the vehicle heat sink 310, and the low-voltage battery 300 are stacked, and the circuit board 125 and the vehicle heat sink 310 are fixed by an installation structure. The distance between the circuit board 125, the vehicle heat sink 310, and the low-voltage battery 300 can be set according to the heat dissipation requirements and wiring harness requirements.

[0144] In some embodiments, the vehicle heat sink 310 can be a water-cooled plate, which is arranged between the circuit boards 125. After the car is started, the water-cooled plate absorbs the heat emitted by the circuit boards 125, thereby improving the space utilization efficiency inside the vehicle and reducing the size and volume of the vehicle's power distribution system.

[0145] In some embodiments, the sampling module 520 can also sample the temperatures of multiple sampling nodes set in the low-voltage battery 300, the battery management module 100 and the thermal management module 900 to 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 battery management module 100 and the thermal management module 900, so that the battery management module 100 and the thermal management module 900 can adjust their working state in real time according to the temperature of their sampling nodes, thereby reducing safety hazards caused by line failures.

[0146] In some embodiments, the controller 120 includes 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.

[0147] In this embodiment, after the battery management module 100 and the thermal management module 900 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.

[0148] In some embodiments, at least one core of the controller 120 is used to process the sampling signal of the low-voltage battery 300 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.

[0149] 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.

[0150] In some embodiments, at least one core of the controller 120 is used to process the sampling signal of the thermal management load 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 corresponding control signals based on the control data to control the thermal drive devices and drive devices around the controller 120, thereby achieving management of the low-voltage battery 300 and the low-voltage drive load.

[0151] 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 to output to the peripheral driving device, and control the working state of the low-voltage battery 300 and the low-voltage drive load by controlling the working state of the thermal driving device and the driving device.

[0152] In some embodiments, at least one core of the controller 120 is used to process the sampling signal of the thermal management module 900 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 thermal management load.

[0153] 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 to output to the peripheral thermal drive device, thereby controlling the working state of the thermal management load by controlling the working state of the thermal drive device.

[0154] In some embodiments, the battery management module 100 manages the charging and discharging process of the low-voltage battery 300, and the thermal management module 900 controls the working state of the thermal management load. The battery management module 100 and the thermal management module 900 reuse the same controller 120, and the power supply module of the battery management system and the power supply module of the thermal management system can be integrated into one, and the communication module of the battery management system and the communication module of the thermal management system can be integrated into one. Under the simultaneous management and control of the thermal management load and the low-voltage battery 300 by the controller 120, the functions of the entire vehicle are highly concentrated, and some functional modules are reused, which greatly reduces the cost of the entire vehicle.

[0155] In some embodiments, as shown in FIG. 7 , the vehicle integrated direct-drive thermal management controller 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 .

[0156] In this embodiment, the SBC power supply module 510 within the vehicle integrated direct-drive thermal management controller architecture can be integrated into the battery management module 100 or the battery management module 100, or can be integrated into the thermal management module 900. The power source of the SBC power supply module 510 can be the low-voltage battery 300.

[0157] 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 .

[0158] 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.

[0159] 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.

[0160] 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 the battery management module 100, and the controller 120 and a part of the thermal management drive unit form the thermal management module 900. The controller 120 integrates the functions of managing the low-voltage battery 300 and the power distribution control of 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 vehicle's low-voltage power distribution system and the vehicle's thermal management system, which not only saves the SBC chip, but also saves energy. The power management solution of the low-voltage power distribution system is optimized, the performance instability problem caused by inconsistent power supply voltage in the independent SBC solution is reduced, and the working consistency of power devices and chips in the low-voltage power distribution system is improved. 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 125, and a 5V independent power supply to power the communication chip on the circuit board 125. The input power supply of the SBC power supply module 510 is consistent, which can improve the consistency of its output voltage.

[0161] In some embodiments, when the load access terminal 210 is connected to multiple electrical loads, the controller 120 controls the multiple load access terminals 210 of the battery management module 100 to be powered on in a time-sharing manner.

[0162] In this embodiment, the multiple load access terminals 210 of the battery management module 100 can be respectively connected to multiple power loads. When multiple power loads are connected, the controller 120 can increase the output current of the battery management module 100 by controlling the multiple load access terminals 210 to power on in a time-sharing manner, thereby avoiding the problem of multiple load access terminals 210 being powered on at the same time, resulting in excessive output current and causing safety hazards.

[0163] In some embodiments, as shown in Figure 8, the vehicle integrated direct-drive thermal management controller 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.

[0164] 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.

[0165] In some embodiments, the controller 120 is connected to the AFE module 530 via a non-multiplexed synchronous serial communication interface.

[0166] 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.

[0167] In some embodiments, as shown in FIG. 9 , the battery management module 100 includes a first switch module 101 . The first switch module 101 is controlled by a controller 120 . The low-voltage battery 300 is electrically connected to the battery management module 100 via the first switch module 101 .

[0168] In this embodiment, the first switch module 101 is connected between the low-voltage battery 300 and the battery management module 100. 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 operations of the low-voltage battery 300, so that the battery management module 100 can reuse the first switch module 101, reducing the wiring harness between the battery management module 100 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.

[0169] In some embodiments, the output voltage of the low-voltage battery 300 ranges from 12V to 72V.

[0170] In some embodiments, the low-voltage battery 300 includes a 12-volt lithium-ion battery or a sodium-ion battery, or other rechargeable batteries.

[0171] In some embodiments, the low-voltage battery 300 includes a 24-volt lithium-ion battery or a sodium-ion battery, or other rechargeable batteries.

[0172] In some embodiments, the low-voltage battery 300 includes a 48-volt lithium-ion battery or a sodium-ion battery, or other rechargeable battery.

[0173] In some embodiments, the low-voltage battery 300 includes a 72V lithium-ion battery or a sodium-ion battery, or other rechargeable batteries.

[0174] In this embodiment, the vehicle integrated direct drive thermal management controller 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.

[0175] An embodiment of the present application also provides a vehicle management system, which includes a vehicle integrated direct-drive thermal management controller architecture as described in any one of the above embodiments.

[0176] 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.

[0177] An embodiment of the present application also provides a car, which includes a vehicle-integrated direct-drive thermal management controller architecture as described in any one of the above embodiments.

[0178] In this embodiment, by integrating the vehicle integrated direct-drive thermal management controller architecture described in any of the above embodiments into the automobile, the battery management module and the thermal management module can be integrated into one structural component, and the battery management module and the thermal management module reuse the same controller, thereby optimizing the electrical architecture of the vehicle's power distribution system, simplifying the relevant components of the entire vehicle, and greatly reducing the cost of the entire vehicle.

[0179] 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.

[0180] 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.

[0181] 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.

[0182] 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.

[0183] 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.

[0184] 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 integrated direct drive thermal management controller architecture, characterized in that: include: Low voltage battery, battery management module and thermal management module; The low-voltage battery is electrically connected to the battery management module; The thermal management module is configured with a load access terminal for accessing a thermal management load; The battery management module and the thermal management module share a same controller, and the controller integrates functions of managing the low-voltage battery and the thermal management load.

2. The vehicle integrated direct drive thermal management controller architecture according to claim 1, 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.

3. The vehicle integrated direct drive thermal management controller architecture according to claim 2, characterized in that: The low-voltage battery is electrically connected to the thermal management module via the first switch module.

4. The vehicle integrated direct drive thermal management controller architecture according to claim 1, characterized in that: The controller is also connected to the thermal management load, and is used to send a thermal management control signal to the thermal management load to manage the thermal management load.

5. The vehicle integrated direct drive thermal management controller architecture according to claim 1, characterized in that: The thermal management module further includes: a plurality of thermal management drive units; The thermal management driving unit is used to manage the thermal management load according to the thermal management control instruction sent by the controller.

6. The vehicle integrated direct drive thermal management controller architecture according to claim 5, characterized in that: The thermal management module further includes: a thermal management power distribution unit; The thermal management power distribution unit is connected to the battery management module, and is used to perform power distribution management on the plurality of thermal management drive units according to the power distribution instruction sent by the controller.

7. The vehicle integrated direct drive thermal management controller architecture according to claim 5, characterized in that: The thermal management module further includes: a plurality of sensor units; The plurality of sensor units are used to sample sampling nodes in the thermal management load to obtain thermal management sampling signals and send them to the controller; the controller is also used to adjust the state of the thermal management driving unit according to the thermal management sampling signals.

8. The vehicle integrated direct drive thermal management controller architecture according to claim 5, characterized in that: The plurality of thermal management drive units include at least one of a motor water pump control unit, a battery water pump control unit, an air conditioning water pump control unit, a fan control unit, a water valve control unit, an air intake grille control unit, an expansion valve control unit, a stop valve control unit, a stepper motor control unit, and a blower control unit; The motor water pump control unit is controlled by the controller and is used to control and drive the motor water pump; The battery water pump control unit is controlled by the controller and is used to control and drive the battery water pump; The air conditioning water pump control unit is controlled by the controller and is used to control and drive the air conditioning water pump; The fan control unit is controlled by the controller and is used to control and drive the electronic fan; The water valve control unit is controlled by the controller and is used to control and drive the water valve; The air intake grille control unit is controlled by the controller and is used to control and drive the active air intake grille; The expansion valve control unit is controlled by the controller and is used to control and drive the expansion valve; The stop valve control unit is controlled by the controller and is used to control and drive the stop valve; The stepper motor control unit is controlled by the controller and is used to control and drive the single and bipolar stepper motor dampers; The blower control unit is controlled by the controller and is used to control and drive the blower.

9. The vehicle integrated direct drive thermal management controller architecture according to claim 1, characterized in that: The vehicle integrated direct drive thermal management controller architecture further includes: A sampling module, used to perform voltage sampling and / or current sampling on the sampling nodes of the battery management module and the thermal management module and generate an electrical parameter 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 according to the electrical parameter sampling signal.

10. The vehicle integrated direct drive thermal management controller architecture according to claim 9, characterized in that: The controller is also used to control the working state of the thermal management module according to the electrical parameter sampling signal.

11. The vehicle integrated direct drive thermal management controller architecture according to claim 9, characterized in that: The sampling module is also used to perform temperature sampling on the sampling nodes of the low-voltage battery and the thermal management load to obtain a temperature sampling signal; The controller is also used to control the working state of the low-voltage battery according to the temperature sampling signal.

12. The vehicle integrated direct drive thermal management controller architecture according to claim 1, characterized in that: The vehicle integrated direct drive thermal management controller architecture further includes: A low-voltage power input terminal electrically connected to the battery management module, used to access the low-voltage power converted by the power battery; The battery management module is also used to control the charging and discharging of the low-voltage battery according to the low-voltage power supply.

13. The vehicle integrated direct drive thermal management controller architecture according to claim 1, characterized in that: The battery management module and the thermal management module are integrated on the same circuit board.

14. The vehicle integrated direct drive thermal management controller architecture according to claim 13, characterized in that: The vehicle integrated direct-drive thermal management controller architecture also includes a vehicle cooling plate; the circuit board is arranged on a first side of the vehicle cooling plate, the low-voltage battery is arranged on a second side of the vehicle cooling plate, and the second side of the vehicle cooling plate is opposite to the first side of the vehicle cooling plate.

15. The vehicle integrated direct drive thermal management controller architecture according to any one of claims 1 to 14, characterized in that: The controller has at least two cores.

16. The vehicle integrated direct drive thermal management controller architecture according to claim 15, 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 working state of the thermal management load.

17. The vehicle integrated direct drive thermal management controller architecture according to any one of claims 1 to 14, characterized in that: The battery management module comprises: An SBC power supply module connected to the controller, used to supply power to the controller; 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.

18. The vehicle integrated direct drive thermal management controller architecture according to any one of claims 1 to 14, characterized in that: The controller controls the multiple load access terminals of the battery management module to be powered on in a time-sharing manner when the load access terminals are connected to multiple thermal management loads.

19. The vehicle integrated direct drive thermal management controller architecture according to any one of claims 1 to 14, characterized in that: Also includes: The AFE module connected to the low-voltage battery and the controller respectively is used to collect information from the low-voltage battery and exchange information with the controller.

20. The vehicle integrated direct drive thermal management controller architecture according to claim 19, characterized in that: The controller is connected to the AFE module via a non-multiplexed synchronous serial communication interface.

21. A vehicle management system, characterized in that: The vehicle management system includes a vehicle integrated direct drive thermal management controller architecture as described in any one of claims 1 to 20.

22. A car, characterized in that: The automobile comprises a vehicle integrated direct drive thermal management controller architecture as described in any one of claims 1 to 19.

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