| abstract |
The control device of the electric vehicle 20 includes an electronic control unit 50. The electronic control unit 50 switches the pulse width modulation control and the square wave control according to the modulation rate to drive the electric motor 32 with switching elements T11, T12, T13, T14, T15, T16 of the inverter 34 Switching control. When the electronic control unit 50 performs switching control by square wave control, a switching pattern that suppresses resonance in the first resonance area when the rotation speed of the electric motor 32 is equal to or greater than the first predetermined rotation speed smaller than the first resonance area Switching control is performed using the first switching mode of the motor 32, and when the number of rotations of the electric motor 32 is less than the first predetermined number of rotations, the first switching pattern suppresses resonance in the second resonance region smaller than the first predetermined number of rotations. 2 Use the switching mode to perform switching control. |