| 摘要 |
<P>PROBLEM TO BE SOLVED: To maintain a smooth traveling state, by reducing the occurrence of shocks to a vehicle from torque fluctuations, when speed is changed by an automatic transmission. <P>SOLUTION: An ECU 20 controls the drive of the hydraulic actuator of each synchronizing clutch and the speed-changing operations of the automatic transmission 15, according to a clutch oil pressure command value Pccom, that indicates the engaging extent of each synchronization clutch of the transmission 15. Based on the preset response characteristics of each synchronization clutch, the ECU 20 suppresses the torque fluctuations generated at driving wheels W according to the change of the operation state of each synchronizing clutch and thereby controls the driving torque of a motor 12 by feedforward control, according to the remaining capacity of a battery 19. Also, feedback control is performed on the revolutions of the motor 12 detected by a revolution sensor S1, in such a way as to follow target revolutions. Furthermore, the ECU 20 controls throttle opening, when the driving torque of the motor 12 is controlled. <P>COPYRIGHT: (C)2004,JPO |
