| 摘要 |
PURPOSE:To improve the following performance of actual speed change ratio by employing the integrated level of difference between the target and actual speed change ratio as a correction speed change command signal when the differentiated value of target speed change ratio will exceed over predetermined level. CONSTITUTION:The differentiated level of a target speed change ratio is calculated by a differentiating means 956 while the difference between the target and actual speed change ratio signals is calculated by a difference operating means 958. When the absolute differentiated value of target speed change ratio signal is higher than predetermined level in a correction level operating means 962, the integrated difference between the target and actual speed change ratio signals is set as a correction level, while when it is lower than predetermined value the correction level is corrected to 0. Then a correction speed change command signal operating means 976 will operate the collection level of speed change command signal to produce a correction speed change command signal which is provided to a speed change actuator. Consequently, even under such operating state where the target speed change ratio will change frequently, it can follow the actual speed change ratio accurately to control the engine to desired operating state. |
