| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to curb the occurrence of slip for maintaining an acceleration capability by reducing a torque according to a slip amount in such a manner that the accelerating force of an electric car is close to a maximum value of adhesion. SOLUTION: This controlling device calculates the absolute value of the torque reduced amount proportional to the n(n>1)th power of the absolute value of the difference between the revolution speed Vw of an electric motor IM detected by a sensor S connected to a wheel of an electric car and the car body speed Vt of the electric car. The value calculated by adding or subtracting the absolute value of torque reduced amount to or from the torque command TrqRefDrv according to the car body speed Vt is outputted as a torque command value TrqRef to control the electric motor IM. |
