| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce the occurrence of fastening shock when the fastening process is redone as an accelerator is stepped down during the process of fastening a lock-up clutch. <P>SOLUTION: If an input/output rotational speed difference of the lock-up clutch comes to be a threshold value or higher as an accelerator is stepped down during a fastening process of the lock-up clutch which gradually increases a fastening pressure command value, the fastening pressure command value is restored to an intermediate value between a current value and an initial value for redoing the fastening process. By restoring a high intermediate value instead of restoring an initial value, progression of the fastening process is accelerated to complete fastening within a fastening control time. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
