Control device for hybrid vehicle
First Claim
1. A control device for a hybrid vehicle including an engine and an electric motor, establishing a motor running state with only the electric motor serving as a drive-power source, and being switched to an engine running state with the engine enabled to serve as a main drive-power source for running the vehicle, if a demanded drive-force relevant value demanded to the vehicle exceeds a given value during the motor running state,the control device comprising relationship alter means for altering a given relationship used in determining the demanded drive-force relevant value depending on an output demanded operation amount applied by a driver, by referring to whether or not a motor running mode demanded for the motor running state is set.
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Accused Products
Abstract
A control device for hybrid vehicle is provided with property alter means 88 that is operative based on whether or not an EV running mode is set and alters a given property used for determining demanded output torque TOUTt of a transmission mechanism by referring to an accelerator opening Acc. This suppresses occurrence of engine startup to meet a requirement for the EV running mode to be initiated. The property alter means alters the given property such that during an EV running mode turn-on state, demanded output torque TOUTt determined based on the accelerator opening Acc has a lower value than that set for an EV running mode turn-off state. That is, this causes a drop in sensitivity of demanded output torque TOUTt determined based on the accelerator opening Acc. Thus, the occurrence of engine startup induced upon depressive operation of an accelerator pedal during the EV running mode is suppressed.
43 Citations
11 Claims
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1. A control device for a hybrid vehicle including an engine and an electric motor, establishing a motor running state with only the electric motor serving as a drive-power source, and being switched to an engine running state with the engine enabled to serve as a main drive-power source for running the vehicle, if a demanded drive-force relevant value demanded to the vehicle exceeds a given value during the motor running state,
the control device comprising relationship alter means for altering a given relationship used in determining the demanded drive-force relevant value depending on an output demanded operation amount applied by a driver, by referring to whether or not a motor running mode demanded for the motor running state is set.
Specification