| 摘要 |
PROBLEM TO BE SOLVED: To effectively suppress racing and reduction (interlock) of rotation caused by sliding of a timing of a hydraulic pressure change, in a speed change for simultaneously carrying out respective hydraulic pressure control of a fastening side and an opening side. SOLUTION: Racing and interlock are detected at the time of speed change (by an interlock and racing detecting means A), hydraulic pressure and/or an engine output are corrected in a direction for suppressing generation of the racing and the interlock (by hydraulic pressure control means B, and engine output control means C). The change width of the engine output during changing speed is detected (by engine output change detecting means D), and the change width and a prescribed value are compared with each other (by engine output change width comparing means). When the change width exceeds the prescribed value, strong racing and interlock are generated, and thereby, a comparatively large value is applied as a correcting rate. On the other hand, when the change width is smaller than the prescribed value, weak racing and interlock are generated, and thereby, a comparatively small value is applied as the correcting rate (by a controlled variable switching means F). |
