Hybrid vehicle equipped with a variable voltage battery

Details Hybrid vehicle equipped with a variable voltage battery Hybrid vehicle equipped with a variable voltage battery

2005-12-23

2009-12-01

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

One cell or battery charges another

Vehicle battery charging

C320S123000, C903S906000, C903S907000

Reexamination Certificate

active

07626354

ABSTRACT:
To protect the inverters and motor generators from damage caused by abnormal currents resulting from the sudden changes in voltage that occur when changing the battery voltage. A vehicle equipped with an engine10*and first and second motor-generators11and12that can generate electricity by being driven by engine10*or from regeneration of kinetic energy of the vehicle, power supply line25that connects first motor-generator11with second motor-generator12,and battery23connected via switch24in the middle of electric power supply line25.When changing the voltage of battery23,switch24is opened before the voltage of battery23is changed, and switch24is closed only after one of the motor generators11and12is caused to generate electric power or propel the vehicle in order to reduce the difference in voltage between power supply line25and battery23.

REFERENCES:
patent: 3923116 (1975-12-01), Thomspon et al.
patent: 6253127 (2001-06-01), Itoyama et al.
patent: 6488107 (2002-12-01), Ochiai et al.
patent: 6569055 (2003-05-01), Urasawa et al.
patent: 2003/0102673 (2003-06-01), Nada
patent: H05-236608 (1993-09-01), None
patent: 2001-329884 (2001-11-01), None
patent: 2004-104936 (2004-04-01), None

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