| 摘要 |
<p>PROBLEM TO BE SOLVED: To control supply hydraulic pressure to the friction engagement element on a release side at the time of starting a gear shift and suppress racing according to the starting of the gear shift by correcting fastening force to raise the friction engagement element on the release side when slip quantity of the friction engagement element is increased more than a prescribed value. SOLUTION: When racing in which slip quantity Ms exceeds a prescribed range is generated, hydraulic pressure PLAST supplied to the friction engagement element on the release side at a point of time is stored and a control increasing supply hydraulics by the proportion that hydraulic correction quantity PUP is added to this hydraulics PLAST is performed. Therefore, supply hydraulics to the friction engagement element on the release side is controlled so as to suppress racing according to the starting of a gear shift. This state is held until the termination of racing is detected. When the termination of racing is detected, a control reducing supply hydraulic pressure by the proportion that hydraulic pressure correction quantity PDOWN is added to stored supply hydraulic pressure PLAST is performed. Therefore, a control is performed in the direction that supply hydraulic pressure to the friction engagement element on the release side is reduce corresponding to the termination of racing.</p> |
