| 摘要 |
<p>PROBLEM TO BE SOLVED: To avoid a delay start feeling given to a driver by commanding release of engine output reduction control for preventing engine racing following the delay of time for engagement of a friction element from a creep prevention slipping condition, in an early timing within the range of no hindrance. SOLUTION: By raising an oil pressure Pc in the forward clutch, which has been left in creep preventive slipping condition since accelerating instant t1 , re-engagement of the clutch is processed and the oil pressure Pc is brought to the maximum value at the engagement completion time t2 . By such engagement, a turbine revolving speed Nt drops and becomes zero in the instant t2 . Judging that re-engagement is commenced in the instant Ts the torque converter slip quantity, which is the difference between the engine revolving speed Ne and the turbine revolving speed Nt , is increased to a set value A, a command to release engine output reduction control, which fully opens a sub-throttle value fully closed for preventing racing, is issued.</p> |
