Voltage generating device, battery management device, and battery management method
The battery management device uses a shunt resistor and voltage generating unit to diagnose overcurrent detection, enhancing safety by accurately identifying and preventing overcurrent conditions in lithium-ion batteries.
JP7764683B2Active Publication Date: 2025-11-06LG ENERGY SOLUTION LTD
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Patent Information
- Application Number
- JP2025067125
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-02-22
- Filing Date
- 2025-04-15
- Publication Date
- 2025-11-06
- Estimated Expiration
- 2042-02-14
AI Technical Summary
Technical Problem
Existing lithium-ion batteries lack effective overcurrent detection mechanisms, which can lead to temperature rises and potential fires, necessitating a reliable method to diagnose the operation of such detection functions.
Method used
A battery management device incorporating a shunt resistor and voltage generating unit to produce distinct output values based on current flow, coupled with a determination unit using amplifiers and comparators to diagnose overcurrent detection functionality.
Benefits of technology
Enables accurate diagnosis of overcurrent detection operations, ensuring safety by preventing overcurrent conditions and maintaining ISO 26262 and ASIL safety grades.
✦ Generated by Eureka AI based on patent content.
Abstract
To provide a battery management apparatus capable of diagnosing operation of an over-current detection function of a battery, a voltage generation apparatus and a battery management method.SOLUTION: A battery management apparatus includes a voltage generation unit 220 configured to generate a first output value and a second output value which have a difference therebetween corresponding to a magnitude of a voltage applied to a shunt resistor 210 connected to a battery 100, in which the difference between the first output value and the second output value corresponds to the magnitude of the voltage applied to the shunt resistor when charging over-current or discharging over-current flows in the shunt resistor.SELECTED DRAWING: Figure 2
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