| 摘要 |
<P>PROBLEM TO BE SOLVED: To control vibration caused by cogging torque using torque control even when a motor is driven in an extremely low speed range. <P>SOLUTION: This vehicle controller is configured to convert DC power supplied from a battery 7 into AC power and to impress it to a vehicle driving motor 2, by controlling a power converter 5 based on a torque command. This controller is provided with a vehicle model 15 that computes the speed of the vehicle model simulating the operation of the vehicle 1 for the torque of the motor 2, based on the torque command; a compensating torque circuit 16 that computes vibration controlling and compensating torque using the vehicle model speed, the speed of motor 2, and a vibration controlling gain; and a vibration controlling gain computing circuit 16 that changes the value of the vibration controlling gain in accordance with the revolutions of the motor 2. <P>COPYRIGHT: (C)2003,JPO |
