Mode changeover control device for a hybrid vehicle

Details Mode changeover control device for a hybrid vehicle Mode changeover control device for a hybrid vehicle

2007-12-18

2011-11-15

Black, Thomas (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Electric vehicle

C180S065310

Reexamination Certificate

active

08060266

ABSTRACT:
A mode changeover control device for a hybrid vehicle includes an engine, a motor/generator and at least one driving wheel. A changeover between an electric drive mode using only the electric motor to power the at least one driving wheel and a hybrid drive mode using both the engine and the electric motor to power the at least one driving wheel is controlled. The drive mode is changed from the hybrid drive mode to the electric drive mode if the accelerator opening is less than a first threshold level, and the drive mode is changed from the electric drive mode to the hybrid drive mode if the accelerator opening is greater than a second threshold level. A hysteresis value is defined between the first threshold level and the second threshold level, and the hysteresis value is changed based on a vehicle operating state.

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