Battery device, battery management system and method for diagnosing a connection state
CN115004049BActive Publication Date: 2026-07-07LG ENERGY SOLUTION LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LG ENERGY SOLUTION LTD
- Filing Date
- 2021-09-23
- Publication Date
- 2026-07-07
AI Technical Summary
Technical Problem
In existing technologies, the connection status of busbars and wiring in battery packs is difficult to diagnose accurately, leading to current supply interruptions.
Method used
By introducing voltage measurement circuitry and a processor into the battery device, the voltage and current of the busbars and wiring are measured, the resistance is calculated to diagnose the connection status, and the processor uses the voltage and current data to determine whether there are any errors in the connection status.
Benefits of technology
It enables accurate diagnosis of the busbar and wiring connection status, ensuring normal current supply to the battery pack and improving the reliability and stability of the battery equipment.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN115004049B_ABST
Abstract
In a battery apparatus, a battery pack includes a plurality of battery modules and a bus bar for connecting two battery modules among the plurality of battery modules. Wiring connects the battery pack and a switch for controlling current supply of the battery pack. A voltage measurement circuit measures a voltage of the bus bar, a voltage of the battery pack, and voltages of the plurality of battery modules, and a processor diagnoses a connection state of the bus bar and a connection state of the wiring based on a current of the battery pack, the voltage of the bus bar, the voltage of the battery pack, and the voltages of the plurality of battery modules.
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