| 摘要 |
PROBLEM TO BE SOLVED: To suppress deterioration in comfort of riding of a driver during deceleration.SOLUTION: If a rotation speed Nm2 of a front wheel motor is within a resonance zone of the motor during deceleration caused by braking-torque (regenerative torque) from the front wheel motor and braking-torque (regenerative torque) from a rear wheel motor, a value whose absolute value is smaller than basic torque Tm2 tmp of the front wheel motor is set to a torque instruction Tm2*, and a value whose absolute value larger than basic torque Tm3 tmp of the rear wheel motor is set to a torque instruction Tm3*, thus controlling the front wheel motor and the rear wheel motor (S190, S200, S230). Further, if a rotation speed Nm3 of the rear wheel motor is within a resonance zone of the motor during deceleration, a value whose absolute value is smaller than the basic torque Tm3 tmp is set to a torque instruction Tm3*, and a value whose absolute value is larger than the basis torque Tm2 tmp is set to a torque instruction Tm2*, thus controlling the front wheel motor and the rear wheel motor (S210-S230).SELECTED DRAWING: Figure 2 |
