A clutch mechanism is disclosed for use with a hybrid electric vehicle
wherein the electric motor-generator and engine are arranged in a series
configuration. The clutch mechanism is positioned between and in
communication with the electric motor-generator and engine to allow for
either direct drive or a predetermined gear ratio between the electric
motor-generator and engine. The electric motor-generator is preferably an
integrated electric motor and generator. The engine is preferably a
combustion engine.
