Invention Grant
- Patent Title: Battery internal short-circuit detection method based on cell charge balancing
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Application No.: US15439370Application Date: 2017-02-22
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Publication No.: US09774197B1Publication Date: 2017-09-26
- Inventor: Yonghua Li , Zhiwei Zhang
- Applicant: Bordrin Motor Corporation
- Applicant Address: US MI Southfield
- Assignee: BORDRIN MOTOR CORPORATION, INC.
- Current Assignee: BORDRIN MOTOR CORPORATION, INC.
- Current Assignee Address: US MI Southfield
- Agency: Brinks Gilson & Lione
- Main IPC: H02J7/00
- IPC: H02J7/00 ; H01M2/34 ; H01M10/48 ; H01M2/10 ; B60L11/18 ; G01R31/02 ; G01R31/36 ; G01R31/00 ; H01M10/42
Abstract:
An internal short-circuit detection method for a battery cell of a battery pack is determined using a battery cell charge balancing resistor and switch. The switch is used for connecting or disconnecting the battery cell charge balancing resistor to the battery cell. Evolution of discharging of the battery with the battery cell-charge balancing resistor connected to the battery cell is monitored to measure an internal short-circuit resistance of the battery cell for estimating the state of the internal short-circuit.
Information query
