| 摘要 |
PURPOSE:To prevent the slip of a tire and the vibration of a vehicle body at the time of starting and the decrease of traveling performance by detecting the number of revolutions of a motor according to the signal of an encoder, detecting the vehicle speed by a vehicle speed sensor, and filter-processing a command signal to the motor to an accelerator signal only when the vehicle speed is lower than a predetermined speed. CONSTITUTION:When an accelerator signal is abruptly increased in the state that a vehicle is stopped or at the time of low speed, a command signal to a motor is maximized at once. When the vehicle speed is at a certain speed or less at this time, the accelerator signal is so controlled as to be a curve (a) of the motor command signal. When the speed is the certain speed or more, it is so controlled as to be a curve (b). Then, at the time of starting the vehicle, abrupt torque is not generated and hence the slip of a tire and the vibration of a vehicle body can be prevented. When the tire is a certain speed or more, a filter-process is not executed, but the command remains at the motor command signal as it is, and hence accelerating performance is not dropped, and feeling at the time of starting is also improved. |
