US Patent 8957618 Control device for electric vehicle

In an electric vehicle, a throttle spring restores a throttle opening on the side of a minimum opening when the accelerator is not operated. A driving section drives a motor according to the throttle opening. The throttle spring pushes an accelerator grip to a creep speed reference opening so as to reduce the throttle opening. A creep speed control section supplies a motor driving instruction to the driving section so that the electric vehicle is advanced at minute vehicle speed. The electric vehicle can also be backed at predetermined minute vehicle speed when the throttle opening is smaller than the creep speed reference opening.