Battery Management System Wireless Communication Unit
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Solution Overview
Problem
The increasing complexity of battery management systems due to numerous components and wiring harnesses complicates the installation structure of battery packs, making it more difficult and prone to errors.
Innovation Solution
Incorporating wireless communication units within the battery management unit and select cell measurement circuits and sensing units, allowing for wireless connectivity and reducing the need for wiring harnesses, which simplifies the installation structure and enhances flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wiring harnesses are used to connect battery management components, then reliable electrical connection is achieved, but device complexity and installation difficulty increase
Solution Approach 1:
The patent replaces the mechanical wiring harness connection system with a wireless communication system. The battery management unit, cell measurement circuits, and sensing units communicate via wireless signals, eliminating the need for physical wiring harnesses while maintaining reliable data transmission and control signal delivery.
Solution Approach 2:
The patent extracts and removes the wiring harness component from the battery management system. By taking out the physical connection medium, the system achieves simpler installation structure and reduced complexity while maintaining functional integrity through wireless communication protocols.
2Adaptability or versatility
If more components are added to enhance battery management functionality, then system capability improves, but the number of wiring harnesses and installation complexity increase
Solution Approach 1:
The patent applies wireless communication to replace mechanical wiring connections, allowing the battery management system to accommodate multiple components (cell measurement circuits, sensing units, control devices) without proportionally increasing installation complexity. The wireless architecture enables flexible component addition while maintaining ease of installation.
3Reliability
If wiring harnesses are used for component connection, then stable communication is achieved, but electromagnetic compatibility problems arise
Solution Approach 1:
The patent substitutes wireless communication for wired electrical connections, thereby eliminating the electromagnetic interference and compatibility issues associated with wiring harnesses. The wireless communication system achieves stable data transmission while avoiding electromagnetic coupling problems between adjacent wires and components.
Data Source
AI summary
The battery management system comprises: a battery management unit, configured to receive status information of a battery module and status information of a battery pack, and transmit a control instruction to cell measurement circuits; the cell measurement circuits, configured to collect the status information of the battery module, transmit the status information of the battery module to the battery management unit, receive and execute the control instruction transmitted from the battery management unit; sensing units, configured to collect the status information of the battery pack, and transmit the status information of the battery pack to the battery management unit; wherein a wireless communication unit is disposed in the battery management unit, and a wireless communication unit is disposed in at least a portion of the cell measurement circuits and/or at least a portion of the sensing units.