CN115275398A - Battery management controller system - Google Patents
Battery management controller system Download PDFInfo
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- CN115275398A CN115275398A CN202211033875.2A CN202211033875A CN115275398A CN 115275398 A CN115275398 A CN 115275398A CN 202211033875 A CN202211033875 A CN 202211033875A CN 115275398 A CN115275398 A CN 115275398A
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- 238000005070 sampling Methods 0.000 claims abstract description 108
- 238000009413 insulation Methods 0.000 claims abstract description 38
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- 238000004891 communication Methods 0.000 claims abstract description 15
- 230000003993 interaction Effects 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 31
- 238000003745 diagnosis Methods 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims 1
- 238000011161 development Methods 0.000 description 6
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- 238000012986 modification Methods 0.000 description 6
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- 230000006870 function Effects 0.000 description 4
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- 238000013461 design Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
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- 230000014509 gene expression Effects 0.000 description 2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
Abstract
The present invention provides a battery management controller system, the system not including a microprocessor, the system comprising: the device comprises a domain controller positioned outside a battery pack, and a high-voltage board and a sampling board positioned inside the battery pack. And the domain controller receives information from the high pressure plate in a CAN communication mode and sends an instruction signal to the high pressure plate. The high-voltage board is communicated with the sampling board through a daisy chain and is in signal interaction with the domain controller through a CAN communication mode, and is configured to perform high-voltage sampling, insulation detection, current detection, high-voltage relay control and active fuse control on the battery pack.
Description
Technical Field
The invention relates to the field of battery management, in particular to a battery management controller system for high-voltage detection and high-voltage control of a battery pack.
Background
The battery management system is mainly used for monitoring the safety of a battery core, controlling a high-voltage relay, controlling charging and the like. The master board controller communicates with a Vehicle Control Unit (VCU) via a CAN and communicates with the slave board controllers via a daisy chain. The mainboard controller is internally provided with a microprocessor, and the operation of the function is controlled by software in the microprocessor.
In a conventional battery management controller architecture, a motherboard controller includes a low-voltage area with a microprocessor as a core. Since the conventional battery management controller has a microprocessor and mainly controls various functions through software in the microprocessor, the architecture is characterized in that: the function of a low-pressure area needs to be designed, and the size of the controller is generally larger; software in a microprocessor needs to be designed, and bottom layer software and application layer software need to be developed; if the software has problems, remote updating and maintenance are needed; different battery packs, software needs redesign and data matching; the power-on and power-off of a battery management controller and CAN communication need to be controlled in a network of the whole vehicle; with the upgrade of electronic and electrical architectures and the development of battery packs, such architectures can have problems, for example, the battery packs are more and more compact, the space for installing the controllers is allowed to be smaller and smaller, and the installation of the controllers with large sizes presents greater challenges; for another example, each battery pack is upgraded with software, which has a great influence on the development period and production cost of the battery pack; for another example, if software is in trouble, the controller needs to be upgraded, and the more controllers, the more complicated the upgrade.
Therefore, a new architecture of the battery management controller is needed to overcome the drawbacks of the conventional battery management controller due to the existence of the microprocessor and the software running thereon.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a battery management controller system for high-voltage detection and high-voltage control of a battery pack, which is mainly characterized in that a controller is not provided with a microprocessor and software, the battery management controller system can detect and control a sensor and an actuator in the battery pack, an external interface is very simple, the modular design of the battery pack is facilitated, and the development workload and the development period are reduced.
The battery management controller system provided by the invention does not comprise a microprocessor, and comprises:
a domain controller located outside the battery pack;
the high-voltage plate and the sampling plate are positioned in the battery pack;
the domain controller receives information from the high pressure plate in a CAN communication mode and sends an instruction signal to the high pressure plate;
the high-voltage board is communicated with the sampling board through a daisy chain and is in signal interaction with the domain controller through a CAN communication mode, and is configured to perform high-voltage sampling, insulation detection, current detection, high-voltage relay control and active fuse control on the battery pack.
In one embodiment, the high voltage plate comprises: a high-voltage acquisition and control module and a CAN signal conversion module.
The high-voltage acquisition and control module is configured to acquire voltage on a high-voltage bus of the battery pack, perform insulation detection on an insulation resistor of the battery pack, detect current on the high-voltage bus of the battery pack through a current sensor, and communicate with the sampling plate through a daisy chain, and signals acquired or detected by the high-voltage acquisition and control module are transmitted to the CAN signal conversion module through an SPI transmission mode.
The CAN signal conversion module is configured to convert the SPI signal into a CAN signal to communicate with the domain controller.
In one embodiment, the high pressure plate further comprises: the system comprises a relay control module, an active fuse control module and an insulation detection circuit;
the relay control module is configured to transmit signals with the high-voltage sampling and control module through an SPI or PIN transmission mode, drive a relay according to the command signals input by the high-voltage sampling and control module and from the domain controller, and feed back a diagnosis result and a relay state to the high-voltage sampling and control module.
The active fuse control module is configured to transmit signals with the high-voltage sampling and control module in an SPI or PIN transmission mode, drive an active fuse according to the command signals input by the high-voltage sampling and control module and from the domain controller, and feed back a diagnosis result and an active fuse state to the high-voltage sampling and control module.
The insulation detection circuit is configured to drive an insulation resistor according to the instruction signal from the domain controller input by the high-voltage sampling and control module and feed back a diagnosis result and an insulation resistance state to the high-voltage sampling and control module.
In one embodiment, the sampling plate comprises a plurality of sampling units, and each sampling unit samples the battery module associated with the sampling unit and performs cell equalization.
In one embodiment, the sampling of the respective associated battery modules includes voltage sampling and temperature sampling of the battery modules.
In one embodiment, the high pressure plate and the sampling plate communicate via a one-way daisy chain.
In one embodiment, the high pressure plate and the sampling plate communicate via a bidirectional daisy chain.
In one embodiment, the system further comprises a power module configured to power the high voltage acquisition and control module, the relay control module, the active fuse control module, and the CAN signal conversion module, the power module having a voltage from the domain controller.
In one embodiment, the power module obtains 12V from the domain controller.
In one embodiment, the system further comprises a current sensor for detecting a current on a high voltage bus of the battery pack.
The battery management controller system of the invention has the following advantages:
firstly, the high-pressure plate and the domain controller are communicated through CAN signals, the CAN signals have strong anti-interference performance, and the communication is reliable;
secondly, most of control and detection signals in the battery pack are driven and collected by the high-voltage board, so that external wiring harnesses are very few, and the battery pack design is simplified;
thirdly, the invention has no main chip and most of low-voltage areas, the size of the controller can be made very small, which is beneficial to the installation in the battery pack;
and fourthly, the high-voltage board controller has no software, complex software development and maintenance work is not needed, remote upgrading is not needed, and the development workload is greatly reduced.
Drawings
The foregoing summary, as well as the following detailed description of the invention, will be better understood when read in conjunction with the appended drawings. It is to be noted that the appended drawings are intended as examples of the claimed invention. In the drawings, like reference characters designate the same or similar elements.
FIG. 1 illustrates a battery management controller system according to an embodiment of the present invention;
FIG. 2 illustrates a high voltage board communication diagram according to an embodiment of the present invention;
FIG. 3 shows a schematic diagram of a high-pressure plate structure according to an embodiment of the invention; and
fig. 4 shows a schematic diagram of a high-voltage board structure with a power module according to an embodiment of the invention.
Description of the reference numerals
101. Domain controller
102. High-pressure plate
103. Sampling plate
301 CAN signal conversion module
302. High pressure acquisition and control module
303. Relay control module
304. Active fuse control module
305. Insulation detection circuit
401. Power supply module
Detailed Description
The detailed features and advantages of the present invention are described in detail in the detailed description which follows, and will be sufficient for anyone skilled in the art to understand the technical content of the present invention and to implement the present invention, and the related objects and advantages of the present invention will be easily understood by those skilled in the art from the description, claims and drawings disclosed in the present specification.
Fig. 1 illustrates a battery management controller system according to an embodiment of the present invention. As shown in fig. 1, the entire battery management controller system includes a domain controller 101 outside the battery pack, a high voltage board 102 inside the battery pack, and a sampling board (i.e., sampling controller) 103.
The domain controller 101 serves as a master board of the high voltage board 102 of the battery management controller system of the present invention, and the sampling board 103 serves as a slave board of the high voltage board 102. The domain controller 101 communicates with the high voltage board 102 through CAN. The high pressure plate 102 communicates with the sampling plate 103 via a daisy chain.
The domain controller 101 receives information of the high-voltage board through the CAN and sends a command signal to the high-voltage board.
The high voltage board 102 receives signals from the sampling boards 103 through the daisy chain and interacts with the domain controller 101 through the CAN. The high-voltage board 102 has functions of high-voltage sampling, insulation detection, current detection, high-voltage relay control, and active fuse control.
The sample board 103 communicates with the high voltage board 102 via a daisy chain. The sampling board 103 includes a plurality of sampling units (i.e., sampling chips), each of which samples and equalizes a cell with a respective associated battery module (i.e., a cell). The sampling comprises voltage sampling and temperature sampling of the battery module.
For example, the sampling unit 1 samples the voltage and the temperature of the battery module 1. The sampling unit 2 samples the voltage and the temperature of the battery module 2. And so on.
Further, the high voltage board 102 and the sample board 103 may communicate with each other via a one-way daisy chain, or may communicate via a two-way daisy chain.
Fig. 2 shows a communication diagram of a high voltage board according to an embodiment of the invention. Wherein, the high voltage board 102 and the domain controller 101 communicate with each other through the CAN. The high pressure plate 102 and the sample plate 103 communicate via a bidirectional daisy chain.
Fig. 3 shows a schematic diagram of a high-voltage plate structure according to an embodiment of the invention.
The high voltage board of the present invention includes, but is not limited to, a CAN signal conversion module 301, a high voltage acquisition and control module 302, a relay control module 303, an active fuse control module 304, and an insulation detection circuit 305.
The CAN signal conversion module 301 is configured to convert the SPI signal into a CAN signal. The CAN signal conversion module 301 communicates with the domain controller 101 through the CAN. The ADC signal collected by the high voltage collection and control module 302 is transmitted through SPI, and the CAN signal conversion module 301 communicates with the high voltage collection and control module through SPI. The CAN signal conversion module 301 converts the SPI signal into a CAN signal and transmits the CAN signal to the domain controller 101 to improve communication quality and increase interference immunity.
The high voltage sampling and control module 302 and the sampling board 103 communicate through a daisy chain, transmitting signals with the relay control module 303 and the active fuse control module 304 through SPI or PIN. The high voltage sampling and control module 302 collects the voltage on the high voltage bus of the battery pack, performs insulation detection on the insulation resistance of the battery pack, detects the current on the high voltage bus of the battery pack through a current Sensor (SHUNT), and communicates with the sampling board through a daisy chain.
The relay control module 303 drives the relay according to the signal input from the high voltage sampling and control module 302 and feeds back the diagnosis result and the relay state to the high voltage sampling and control module 302. The signal input by the high voltage sampling and control module 302 is a command signal from the domain controller 101. The diagnosis result and the relay state are fed back to the high-voltage sampling and control module 302, converted into a CAN signal by the CAN signal conversion module 301, and further fed back to the domain controller 101.
The active fuse control module 304 drives the active fuse according to the signal input by the high voltage sampling and control module 302 and feeds back the diagnostic result and the state of the active fuse to the high voltage sampling and control module 302. The diagnosis result and the active fuse state are fed back to the high voltage sampling and control module 302, and then converted into a CAN signal by the CAN signal conversion module 301, and further fed back to the domain controller 101.
The insulation detection module 304 drives the insulation resistance according to the signal input by the high voltage sampling and control module 302 and feeds back the diagnosis result and the insulation resistance state to the high voltage sampling and control module 302. The diagnosis result and the insulation resistance state are fed back to the high voltage sampling and control module 302, and then converted into a CAN signal by the CAN signal conversion module 301, and further fed back to the domain controller 101.
Fig. 4 shows a schematic diagram of a high-voltage board structure with a power module according to an embodiment of the invention. The system is powered by an external power source.
In one embodiment, the power may be supplied by a voltage from the domain controller. The voltage may be 12V. As shown in fig. 4, after the 12V voltage enters the battery management controller system, power is supplied to each module through a power module, which includes a high voltage acquisition and control module 302, a relay control module 303, an active fuse control module 304, and a CAN signal conversion module 301.
In one embodiment, the high voltage board of the present invention includes, but is not limited to, a CAN signal conversion module 301, a high voltage acquisition and control module 302, a relay control module 303, an active fuse control module 304, an insulation detection circuit 305, and a power supply module 401 inside.
The power module 401 supplies power to the high voltage acquisition and control module 302, the relay control module 303, the active fuse control module 304, and the CAN signal conversion module 301. The voltage of the power module 401 comes from the domain controller.
The CAN signal conversion module 301 is configured to convert the SPI signal into a CAN signal. The CAN signal conversion module 301 communicates with the domain controller 101 through the CAN. The ADC signal collected by the high voltage collection and control module 302 is transmitted through SPI, and the CAN signal conversion module 301 communicates with the high voltage collection and control module through SPI. The CAN signal conversion module 301 converts the SPI signal into a CAN signal and transmits the CAN signal to the domain controller 101 to improve communication quality and increase interference immunity.
The high voltage sampling and control module 302 and the sampling board 103 communicate through a daisy chain, transmitting signals with the relay control module 303 and the active fuse control module 304 through SPI or PIN. The high voltage sampling and control module 302 collects the voltage on the high voltage bus of the battery pack, performs insulation detection on the insulation resistance of the battery pack, detects the current on the high voltage bus of the battery pack through a current Sensor (SHUNT), and communicates with the sampling board through a daisy chain.
The relay control module 303 drives the relay according to the signal input from the high voltage sampling and control module 302 and feeds back the diagnosis result and the relay state to the high voltage sampling and control module 302. The diagnosis result and the relay state are fed back to the high-voltage sampling and control module 302, converted into a CAN signal by the CAN signal conversion module 301, and further fed back to the domain controller 101.
The active fuse control module 304 drives the active fuse according to the signal input by the high voltage sampling and control module 302 and feeds back the diagnostic result and the state of the active fuse to the high voltage sampling and control module 302. The diagnosis result and the active fuse state are fed back to the high voltage sampling and control module 302, and then converted into a CAN signal by the CAN signal conversion module 301, and further fed back to the domain controller 101.
The insulation detection module 304 drives the insulation resistance according to the signal input by the high voltage sampling and control module 302 and feeds back the diagnosis result and the insulation resistance state to the high voltage sampling and control module 302. The diagnosis result and the insulation resistance state are fed back to the high voltage sampling and control module 302, and then are converted into a CAN signal by the CAN signal conversion module 301, and further fed back to the domain controller 101.
The battery management controller system provided by the invention does not comprise a microprocessor, and comprises:
a domain controller located outside the battery pack;
the high-voltage plate and the sampling plate are positioned in the battery pack;
the domain controller receives information from the high pressure plate in a CAN communication mode and sends an instruction signal to the high pressure plate;
the high-voltage board is communicated with the sampling board through a daisy chain and is in signal interaction with the domain controller through a CAN communication mode, and is configured to perform high-voltage sampling, insulation detection, current detection, high-voltage relay control and active fuse control on the battery pack.
In one embodiment, the high voltage board includes: a high-voltage acquisition and control module and a CAN signal conversion module.
The high-voltage acquisition and control module is configured to acquire voltage on a high-voltage bus of the battery pack, perform insulation detection on an insulation resistor of the battery pack, detect current on the high-voltage bus of the battery pack through a current sensor, and communicate with the sampling plate through a daisy chain, and signals acquired or detected by the high-voltage acquisition and control module are transmitted to the CAN signal conversion module through an SPI transmission mode.
The CAN signal conversion module is configured to convert the SPI signal into a CAN signal to communicate with the domain controller.
In one embodiment, the high pressure plate further comprises: the relay control module, the active fuse control module and the insulation detection circuit are arranged in the circuit board;
the relay control module is configured to transmit signals with the high-voltage sampling and control module through an SPI or PIN transmission mode, drive a relay according to the command signals input by the high-voltage sampling and control module and from the domain controller, and feed back a diagnosis result and a relay state to the high-voltage sampling and control module.
The active fuse control module is configured to transmit signals with the high-voltage sampling and control module in an SPI or PIN transmission mode, drive an active fuse according to the command signals input by the high-voltage sampling and control module and from the domain controller, and feed back a diagnosis result and an active fuse state to the high-voltage sampling and control module.
The insulation detection circuit is configured to drive an insulation resistor according to the instruction signal from the domain controller input by the high-voltage sampling and control module and feed back a diagnosis result and an insulation resistance state to the high-voltage sampling and control module.
In one embodiment, the sampling plate comprises a plurality of sampling units, and each sampling unit samples the battery module associated with the sampling unit and performs cell equalization.
In one embodiment, the sampling of the respective associated battery modules includes voltage sampling and temperature sampling of the battery modules.
In one embodiment, the high pressure plate and the sampling plate communicate via a one-way daisy chain.
In one embodiment, the high pressure plate and the sampling plate communicate via a bidirectional daisy chain.
In one embodiment, the system further comprises a power module configured to power the high voltage acquisition and control module, the relay control module, the active fuse control module, and the CAN signal conversion module, the power module having a voltage from the domain controller.
In one embodiment, the power supply module obtains 12V from the domain controller.
In one embodiment, the system further comprises a current sensor for detecting a current on a high voltage bus of the battery pack.
The invention has the following advantages:
firstly, the high-pressure plate and the domain controller are communicated through CAN signals, the CAN signals have strong anti-interference performance, and the communication is reliable;
secondly, most of control and detection signals in the battery pack are driven and collected by the high-voltage plate, so that external wiring harnesses are very few, and the design of the battery pack is simplified;
thirdly, the invention has no main chip and most of low-voltage areas, the size of the controller can be made very small, which is beneficial to the installation in the battery pack;
and fourthly, the high-voltage board controller has no software, complex software development and maintenance work is not needed, remote upgrade is not needed, and the development workload is greatly reduced.
Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing disclosure is by way of example only, and is not intended to limit the present application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, though not expressly described herein. Such modifications, improvements and adaptations are proposed in the present application and thus fall within the spirit and scope of the exemplary embodiments of the present application.
Flow charts are used herein to illustrate operations performed by systems according to embodiments of the present application. It should be understood that the preceding or following operations are not necessarily performed in the exact order in which they are performed. Rather, various steps may be processed in reverse order or simultaneously. Meanwhile, other operations are added to or removed from these processes.
Also, this application uses specific language to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.
Moreover, those skilled in the art will appreciate that aspects of the present application may be illustrated and described in terms of several patentable species or situations, including any new and useful combination of processes, machines, manufacture, or materials, or any new and useful improvement thereon. Accordingly, various aspects of the present application may be embodied entirely in hardware, entirely in software (including firmware, resident software, micro-code, etc.) or in a combination of hardware and software. The above hardware or software may be referred to as "data block," module, "" engine, "" unit, "" component, "or" system. Furthermore, aspects of the present application may be represented as a computer product, including computer readable program code, embodied in one or more computer readable media.
Additionally, the order in which elements and sequences of the processes described herein are processed, the use of alphanumeric characters, or the use of other designations, is not intended to limit the order of the processes and methods described herein, unless explicitly claimed. While certain presently contemplated useful embodiments of the invention have been discussed in the foregoing disclosure by way of various examples, it is to be understood that such detail is solely for that purpose and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements that are within the spirit and scope of the embodiments of the disclosure. For example, although the system components described above may be implemented by hardware devices, they may also be implemented by software-only solutions, such as installing the described system on an existing server or mobile device.
Similarly, it should be noted that in the foregoing description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.
The terms and expressions which have been employed herein are used as terms of description and not of limitation. The use of such terms and expressions is not intended to exclude any equivalents of the features shown and described (or portions thereof), and it is recognized that various modifications may be made within the scope of the claims. Other modifications, variations, and alternatives are also possible. Accordingly, the claims are to be regarded as covering all such equivalents.
Also, it should be noted that although the present invention has been described with reference to the current specific embodiments, it should be understood by those skilled in the art that the above embodiments are merely illustrative of the present invention, and various equivalent changes or substitutions may be made without departing from the spirit of the present invention, and therefore, it is intended that all changes and modifications to the above embodiments be included within the scope of the claims of the present application.
Claims (10)
1. A battery management controller system, wherein the system does not include a microprocessor, the system comprising:
a domain controller located outside the battery pack;
the high-voltage plate and the sampling plate are positioned in the battery pack;
the domain controller receives information from the high-pressure plate in a CAN communication mode and sends a command signal to the high-pressure plate;
the high-voltage board is communicated with the sampling board through a daisy chain and is in signal interaction with the domain controller through a CAN communication mode, and is configured to perform high-voltage sampling, insulation detection, current detection, high-voltage relay control and active fuse control on the battery pack.
2. The battery management controller system of claim 1, wherein the high voltage board comprises:
the high-voltage acquisition and control module and the CAN signal conversion module;
wherein the content of the first and second substances,
the high-voltage acquisition and control module is configured to acquire voltage on a high-voltage bus of the battery pack, perform insulation detection on an insulation resistance of the battery pack, detect current on the high-voltage bus of the battery pack through a current sensor, and communicate with the sampling plate through a daisy chain, and signals acquired or detected by the high-voltage acquisition and control module are transmitted to the CAN signal conversion module through an SPI transmission manner;
the CAN signal conversion module is configured to convert the SPI signal into a CAN signal to communicate with the domain controller.
3. The battery management controller system of claim 2, wherein the high-voltage board further comprises:
a relay control module the active fuse control module and the insulation detection circuit;
wherein:
the relay control module is configured to transmit signals with the high-voltage sampling and control module in an SPI or PIN transmission mode, drive a relay according to the command signals input by the high-voltage sampling and control module and feed back a diagnosis result and a relay state to the high-voltage sampling and control module;
the active fuse control module is configured to transmit signals with the high-voltage sampling and control module in an SPI or PIN transmission mode, drive an active fuse according to the command signals input by the high-voltage sampling and control module and feed back a diagnosis result and an active fuse state to the high-voltage sampling and control module;
the insulation detection circuit is configured to drive an insulation resistor according to the instruction signal from the domain controller input by the high-voltage sampling and control module and feed back a diagnosis result and an insulation resistance state to the high-voltage sampling and control module.
4. The battery management controller system of claim 1, wherein the sampling board comprises a plurality of sampling units, each sampling unit sampling and cell balancing a respective associated battery module.
5. The battery management controller system of claim 4, wherein sampling the respective associated battery module comprises sampling a voltage and sampling a temperature of the battery module.
6. The battery management controller system of claim 1, wherein the high pressure plate and the sampling plate communicate via a unidirectional daisy chain.
7. The battery management controller system of claim 1, wherein the high pressure board and the sampling board communicate via a bidirectional daisy chain.
8. The battery management controller system of claim 3, wherein the system further comprises a power module configured to power the high voltage acquisition and control module, the relay control module, the active fuse control module, and the CAN signal conversion module, the power module having a voltage from the domain controller.
9. The battery management controller system of claim 8, wherein the power module obtains 12V voltage from the domain controller.
10. The battery management controller system of claim 1, wherein the system further comprises a current sensor for detecting current on a high voltage bus of the battery pack.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211033875.2A CN115275398A (en) | 2022-08-26 | 2022-08-26 | Battery management controller system |
| PCT/CN2023/100837 WO2024041125A1 (en) | 2022-08-26 | 2023-06-16 | Battery management controller system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211033875.2A CN115275398A (en) | 2022-08-26 | 2022-08-26 | Battery management controller system |
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| CN115275398A true CN115275398A (en) | 2022-11-01 |
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| CN202211033875.2A Pending CN115275398A (en) | 2022-08-26 | 2022-08-26 | Battery management controller system |
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| WO (1) | WO2024041125A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041125A1 (en) * | 2022-08-26 | 2024-02-29 | 联合汽车电子有限公司 | Battery management controller system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103683428A (en) * | 2013-12-20 | 2014-03-26 | 奇瑞汽车股份有限公司 | Battery management system for electronic vehicle and electronic vehicle |
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Also Published As
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| WO2024041125A1 (en) | 2024-02-29 |
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