| 摘要 |
PROBLEM TO BE SOLVED: To avoid being influenced by the fluctuation of a motor revolution upon the motor control of an electric vehicle. SOLUTION: In the control device of an electric vehicle, revolutions (rotational speeds) of wheels 16 are detected by sensors 100 and 102 and supplied to a controller 42. The controller 42 calculates the target revolution of the motor based on the revolution of the wheels and controls an inverter 18 according to the target motor revolution to avoid the fluctuation of the motor revolution. If the revolution of the motor 10 is detected directly to obtain the target revolution, a low-pass filter processing, etc., are necessary for removing the fluctuating components, and an offset between the target value and actual value is produced. However, by using the revolution of the wheel with a large inertial moment, the low-pass filter processing, etc., become necessary, and the target motor revolution free of offsets can be obtained. |
