Method for attenuating vibrations in a hybrid electric...

Details Method for attenuating vibrations in a hybrid electric... Method for attenuating vibrations in a hybrid electric...

2007-11-06

2007-11-06

Chin, Gary (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Electric vehicle

C701S054000, C180S065230, C180S065310

Reexamination Certificate

active

11161101

ABSTRACT:
A method is disclosed for attenuating vibrations of an engine in a hybrid electric vehicle powertrain having a subsystem comprising an electric motor, a generator and a battery. Engine torque is coordinated with motor torque during engine start events and engine stopping events using gearing that defines in part separate torque flow paths for the engine and the motor. A filtered motor speed is used to compute active motor torque damping.

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