| 摘要 |
PURPOSE:To decrease decelerating shock in a particular range as much as possible by correcting the preset differential pressure to be adjusted by a hydraulic control means at the time of slip control in a particular operating range so that it may decrease with high engine speed. CONSTITUTION:When shifting up or shifting down is carried out in a slip control range, the differential pressure preset by a duty solenoid valve 26 is corrected so that it may decrease with higher engine speed. This keeps the substantial differential hydraulic pressure working on both sides of both the edges of a lock-up clutch 8 constant regardless of the change in the number of revolutions to keep the substantial engaging force of the lock-up clutch 8 at the time of speed change constant regardless of the speed change conditions. Therefore, by setting the differential pressure correction properly, especially the decelerating shock at the time of speed change in a slip control range can be reduced as much as possible under any speed change condition. |
