| 摘要 |
An external disturbance compensating output computing unit comprising a low pass filter is provided in a speed change controller of a continuously variable transmission. A real speed change ratio, and an actuator position signal or a speed change ratio command value are input to the external disturbance compensating output computing unit. The actuator position signal or speed change ratio command value of a speed change mechanism control unit are selectively assigned to a value input to the low pass filter according to a difference between the real speed change ratio and a target speed change ratio. When the difference between the real speed change ratio and target speed change ratio is small, non-linear characteristics of the speed change mechanism are compensated, and when the difference is large, the non-linear characteristics of the speed change mechanism are not compensated. In this way, a desired speed change response is obtained regardless of driving conditions. |
