Method and apparatus for a multi-cell rechargeable energy storage device

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12103429
SERIAL NO

18315875

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Abstract

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A method and a system for a high-voltage (HV) battery pack having multiple rechargeable energy storage devices (RESSs) that are connectable to an external load via a power bus via a pre-charge circuit in parallel with a first electrical contactor. The RESSs are monitored via current sensors. The current sensors monitor current levels between the RESSs and the power bus, detect a low current level from one of the current sensors, identify one of the RESSs associated with the low current level, activate the respective pre-charge circuit, monitor the electrical current, and determine a state of the respective first electrical contactor based upon the electrical current.

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Patent Owner(s)

  • GM GLOBAL TECHNOLOGY OPERATIONS LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gibbs, James C Brighton, US 21 300
Heap, Anthony H Ann Arbor, US 222 16522

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