| 摘要 |
PURPOSE:To improve an efficiency of an acceleration by controlling a changing speed of a speed ratio to be adjusted at a fixed time after an acceleration stage is detected and then releasing a changing speed control to make a transit characteristic smooth when accelerating. CONSTITUTION:A target revolution speed is decided by a relation obtained in advance by a target revolution speed deciding means based on a requested load volume detecting signal having an engine revolution speed detecting means and an requested load volume detecting means. A speed ratio of a continuously variable transmission is adjusted by a speed ratio adjusting means based on a deviation between the target revolution speed deciding means and an actual revolution speed. At this time if an excess amount of the target revolution speed over the actual revolution speed reaches a fixed amount obtained in advance, the accleration state is detected by an acceleration state detecting means and by its output, the changing speed of the speed ratio adjusted by the above adjusting means is controlled for a fixed period thereafter. After the fixed period passes, it is controlled to allow the change of the changing speed. |
