Battery Management Chip Architecture for Stable High-Speed Data Paths
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Solution Overview
Problem
Current battery management systems exhibit poor performance in accurately and timely estimating and managing battery status, leading to inefficiencies and limitations in application scenarios.
Innovation Solution
A battery management system architecture comprising an analog front-end chip, high-voltage management chip, and processor chip, connected via a dedicated integrated chip, enhances data transmission efficiency and stability by unifying data paths and improving operating efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional battery management system architecture is used, then the system structure is simpler, but the operating efficiency and data transmission speed are poor
Solution Approach 1:
The battery management system is divided into multiple independent functional modules: analog front-end chip for signal acquisition, high-voltage management chip for power management, dedicated integrated chip for data transmission, and processor chip for control. Each module operates independently with specialized functions, improving overall system efficiency while maintaining manageable complexity through modular design.
Solution Approach 2:
A dedicated integrated chip is introduced as an intermediary component between the analog front-end chip/high-voltage management chip and the processor chip. This intermediary optimizes data transmission paths, accelerates data exchange, and improves communication efficiency, thereby enhancing overall system operating efficiency without significantly increasing architectural complexity.
2Reliability
If data transmission paths are not unified, then the system architecture is more flexible, but data stability and transmission efficiency are reduced
Solution Approach 1:
The dedicated integrated chip serves multiple functions simultaneously: it acts as a data transmission intermediary, performs signal processing, manages communication protocols, and coordinates data flow between different modules. This multi-functionality unifies data transmission paths while improving stability, without requiring separate dedicated components for each function.
Solution Approach 2:
The dedicated integrated chip establishes unified data transmission paths by mediating all communications between the analog front-end chip, high-voltage management chip, and processor chip. This centralized intermediary ensures consistent data flow routing, improving data stability and transmission efficiency while maintaining systematic control over communication paths.
3Adaptability or versatility
If the battery management system uses traditional architecture, then the implementation cost is lower, but the applicability to different scenarios is limited
Solution Approach 1:
The modular segmented architecture allows different combinations of functional modules to be deployed based on specific application requirements. For example, certain applications may only require the analog front-end chip and processor chip, while others need the full suite including high-voltage management chip. This flexibility enhances adaptability to different scenarios while keeping the base architecture manageable.
Solution Approach 2:
The dedicated integrated chip provides universal communication capabilities that can interface with various types of processors and sensors, enabling the system to adapt to different application scenarios. The chip's multi-functional design allows it to handle diverse data formats and communication protocols, expanding the system's versatility without proportionally increasing complexity.
Data Source
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AI summary
Provided are a battery management system, a battery, a vehicle, and a battery management method. The battery management system includes an analog front-end chip, a high-voltage management chip, a dedicated integrated chip, and a processor chip. The analog front-end chip is connected to a battery group, and is configured to detect status parameter information of at least one battery cell in the battery group. The high-voltage management chip is connected to a power cord of a battery pack, and is configured to detect status parameter information of the battery pack. The battery pack includes a plurality of battery groups. The processor chip is electrically connected to the analog front-end chip through the dedicated integrated chip. The high-voltage management chip is electrically connected to the processor chip through the dedicated integrated chip. The processor chip is configured to manage the battery management system according to the status parameter information of the battery cell and the status parameter information of the battery pack.