| 摘要 |
<p>PURPOSE:To judge the completion of the engagement of a clutch without accompanying a shock at all times irrespective of the high and low of an inputted rotating speed by setting a set value which is the juging reference for the complete engagement of said starting clutch, so as to increase with the increase in the inputted rotating speed. CONSTITUTION:A slip type starting clutch 20 for optionally controlling a transmission torque is provided in a V-belt type continuously variable transmission. And, the slip control of the starting clutch 20 is carried out when the difference in rotating speed between the input and output of the starting clutch 20 is above a set value, and, the starting clutch 20 is completely engaged at the point of time when the difference in rotating speed between input and output becomes below the set value. In this automatic transmission, a set value is set so as to be increased as the input rotating speed is increased. That is, the set value is made small when the input rotating speed of the starting clutch 20 is low, and the clutch 20 is completely engaged at the point of time when the difference in the rotating speed between input and output becomes below this set value, thereby, reducing an engaging shock. On the other hand, when the input rotating speed is high, the set value is made large allowing dispersion in the detection of the rotating speed, to facilitate the judgment of the completion of engagement.</p> |
