| 摘要 |
PROBLEM TO BE SOLVED: To reduce the occurrence of a fastening shock in the case the accelerator is pressed down for redoing a fastening process during a process for fastening a lockup clutch. SOLUTION: When an input/output rotational frequency difference of the lockup clutch is more than a threshold value due to pressing down on the accelerator during a fastening process of the lockup clutch for gradually increasing a fastening pressure command value, the fastening pressure command value is returned to an initial value and the fastening process is started over, and the fastening control time is extended so that the fastening process which started over is finished within the extended fastening control time. Thereby, the occurrence of a fastening shock due to the fastening process not being finished within the fastening control time and the fastening pressure command value being stepwisely increased at the time of the fastening control time passing is prevented. COPYRIGHT: (C)2006,JPO&NCIPI |
