| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a control device capable of reducing the frequency of forcible release of a friction clutch and starting acceleration promptly when an accelerator pedal is stepped down during deceleration or after deceleration. <P>SOLUTION: An automatic transmission system includes: the friction clutch 2 disposed between an internal combustion engine 1 and an input shaft 5 of a transmission; and a transmission controller 31, which controls the engagement and release of the friction clutch 2. The transmission controller 31 performs: control of a slip which is caused by a difference in rotations between the input side and output side of the friction clutch 2 according to the driving conditions of a vehicle; and a clutch forcible release control, which forcibly releases the friction clutch 2 according to the deceleration speed of the vehicle to prevent engine stall. In this system, the transmission controller 31 eases a threshold value of the deceleration speed for determining whether the clutch forcible release control should be performed or not during the deceleration while the slip control is being performed than when the slip control is not performed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
