| 摘要 |
PCT No. PCT/JP95/02525 Sec. 371 Date Aug. 9, 1996 Sec. 102(e) Date Aug. 9, 1996 PCT Filed Dec. 8, 1995 PCT Pub. No. WO96/17742 PCT Pub. Date Jun. 13, 1996This invention relates to a gear shift method for an electric automobile, which is used upon changing a gear ratio of a transmission in the electric automobile. First, in step 1, when a change-over signal is outputted from a shift controller, output control of a motor, which has been performed in accordance with a stroke of an accelerator pedal, is canceled, and the transmission is changed into a neutral position. In next step 2, an output amount of the motor is controlled in accordance with a target motor output amount corresponding to a target motor output amount corresponding to a target motor rotation speed, the target motor rotation speed being calculated based on a vehicle speed at a time of the changing operation and a gear ratio of a selected target gear position. Then, in step 3, the transmission is changed into the target gear position. In subsequent step 4, an output of the motor is allowed to gradually return to an output amount corresponding to a stroke of the accelerator pedal. These features make it possible to perform a prompt and smooth change-over of a gear ratio even when the accelerator pedal remains depressed. |
