Protection circuit for battery management system

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12266923
APP PUB NO 20230253780A1
SERIAL NO

18302732

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Systems and methods are provided for a battery management system (BMS) having a protection circuit. In one example, a vehicle battery system may include the BMS, the BMS including a cutoff circuit coupled to a short-circuit protection circuit, and a battery pack, wherein the short-circuit protection circuit may include a diode array, cathodes of the diode array being coupled to a positive terminal post of the battery pack and anodes of the diode array being coupled to a negative terminal post of the battery pack. In some examples, the cutoff circuit may further be coupled to a reverse bias protection circuit including a switchable current path arranged between a control input of the cutoff circuit and an output of the cutoff circuit. In this way, the vehicle battery system may be protected from unexpected voltage conditions via the BMS redirecting and dissipating excess current away from the cutoff circuit.

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Patent Owner(s)

  • A123 SYSTEMS LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gierlach, Steve Novi, US 4 2
Large, Brian Novi, US 5 2
Li, Yue Novi, US 869 5176
Lin, Weiwei Hangzhou, CN 9 2
Xu, Ke Hangzhou, CN 254 720
Zhang, Jiaping Hangzhou, CN 12 8

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