Interrelated power delivery controls – including engine control – Plural engines – Electric engine
Reexamination Certificate
2006-10-03
2006-10-03
Pang, Roger (Department: 3681)
Interrelated power delivery controls, including engine control
Plural engines
Electric engine
C477S115000
Reexamination Certificate
active
07115064
ABSTRACT:
A method for controlling a wheel drive system of a hybrid electric vehicle when starting a power source. The hybrid electric vehicle includes first and second power sources, a motor, and a power transfer unit adapted to drive a vehicle wheel. The method includes determining whether the first power source is to be started, determining whether a level of torque requested by a vehicle operator is greater than a threshold value, maintaining a current gear ratio if the threshold value is exceeded, and providing a target level of torque to the power transfer unit.
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Colvin Dan
Masterson Brandon
Brooks & Kushman
Ford Global Technologies LLC
Kelley Davis B.
Pang Roger
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