Patent ID: 6216465
Filing Date: 2001-04-17
Classification: B60K,B60W,Y02T,Y10S

Abstract:
A control system for a hybrid vehicle with an engine for producing a driving force for said vehicle, a motor for producing an assist driving force to assist the output from said engine, and a power storage unit for supplying electric energy to said motor and storing regenerated energy produced by regeneration of said motor when said vehicle decelerates, said control system comprising:an assist trigger threshold value setting device for setting a throttle opening state when said motor starts assist for the output from said engine;a throttle opening state lower limit setting device for setting a lower limit by subtracting a predetermined value from the threshold value obtained by said assist trigger threshold value setting device; anda generation reduction device for gradually reducing the generation by the motor between the lower limit and the threshold value so that the generation finally becomes zero when the present throttle opening state reaches the threshold value, when the vehicle shifts from a generation state, in which the motor acts as a generator and the output is supplied only from the engine, to an output assist state in which said motor assists the output.