Motor vehicles – Power – Electric
Reexamination Certificate
2001-05-30
2003-09-02
Johnson, Brian L. (Department: 3618)
Motor vehicles
Power
Electric
C180S065230, C318S139000, C322S013000, C701S022000
Reexamination Certificate
active
06612386
ABSTRACT:
TECHNICAL FIELD
The present invention is related to a method and apparatus for controlling a hybrid vehicle.
BACKGROUND
A Hybrid Vehicle is a vehicle that has two sources of propulsion. A hybrid electric vehicle (HEV) is a vehicle wherein one of the sources of propulsion is electric and the other source of propulsion may be derived from fuel cells or an internal combustion engine (ICE) that burns diesel, gasoline or any other source of fuel. The hybrid vehicle employs an operating system for controlling the alternative sources of propulsion.
An electric motor-generator (MoGen) system replaces the separate starter motor and alternator.
The motor generator or “MoGen” of a hybrid system provides many unique aspects of powertrain control previously unavailable with a conventional or separate engine starter and alternator control scheme. A separate conventional starter control only allows the starter motor to apply torque to the internal combustion engine during a crank event. A separate alternator control simply charges to a set point voltage.
SUMMARY OF THE INVENTION
A propulsion system for use in a hybrid vehicle, the propulsion system includes an internal combustion engine, an electric motor/generator operatively coupled to the internal combustion engine and an electric storage medium and a propulsion system controller for actuating the propulsion system. The propulsion system controller varies the operating conditions of the electric motor/generator system in response to operating conditions of the vehicle.
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Aldrich, III William Leonard
Hoang Tony T.
Risse Patrick L.
Tamai Goro
DeVries Christopher
General Motors Corporation
Johnson Brian L.
Klebe G B
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