Method and apparatus for controlling vehicle battery charging

Details Method and apparatus for controlling vehicle battery charging Method and apparatus for controlling vehicle battery charging

2006-05-11

2010-11-16

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

One cell or battery charges another

Vehicle battery charging

Reexamination Certificate

active

07834582

ABSTRACT:
An electrical charging strategy and system for a high voltage electrical energy storage system able to supply electrical energy to a hybrid vehicle is disclosed. The system charges the electrical energy storage system so state-of-charge at the end of a trip is substantially unchanged. The strategy and system employs opportunity charging to achieve maximum energy efficiency of the hybrid system, thus minimizing fuel consumption and maximizing fuel economy. The charging system operation is controlled, based upon: the state-of-charge of the electrical energy storage system, and, the operating efficiency of the internal combustion engine. Battery life is likewise extended through use of this strategy.

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