| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the physical disorder feeling to reduce the torque at immediately after the fastening, by making the projection torque when a friction element is fastened from the slip condition for preventing creep, not exceed the torque after the fastening when an accelerator is depressed a small amount slowly. SOLUTION: After the instant t1 when an accelerator is depressed a small amount slowly, the hydraulic pressure PC of a forward clutch which has been in a slip condition for preventing creep is raised in a specific inclination KP, so as to fasten and advance the forward clutch, and at the instant t2 when the fastening is completed, the hydraulic pressure PC is made in the maximum value to prevent the slip of the forward clutch. In this case, by setting the projection torque generated between the instants t1 and t2 not exceed the torque T1 after the fastening, as cleared from the waveform of the output shaft torque of a change gear, a physical disorder feeling that the torque is reduced immediately after the fastening instant t2 can be eliminated. |
