Patent ID: 6336889
Filing Date: 2002-01-08
Classification: B60K,B60W,Y02T,Y10S,Y10T

Abstract:
A drive control system for a hybrid vehicle in which an internal combustion engine is selectively coupled through a clutch mechanism to a power transmission line coupled to an electric motor, comprising:motoring means for coupling said internal combustion engine to said power transmission line to rotate said internal combustion engine, with a feed of fuel to said internal combustion engine being stopped when said hybrid vehicle is driven to run by an output of said electric motor, by controlling said clutch mechanism in an applied state, and motoring speed control means for limiting a speed of said internal combustion engine to a predetermined level when said internal combustion engine is rotated by the output of said electric motor, wherein said motoring speed control means includes slip control means for setting said clutch mechanism in a partially applied state between a completely applied state and a completely released state.