Patent ID: 6514172
Filing Date: 2003-02-04
Classification: B60W,F16H,Y10T

Abstract:
A control apparatus of an automatic transmission having torque transmission means between an input shaft and an output shaft of a gear transmission with said torque transmission means on at least one gear change stage serving as a friction clutch and said torque transmission means on other gear change stages serving as claw clutches, for controlling said friction clutch at a gear change from one gear change stage to another,wherein, if output shaft torque exceeds torque generated under a gear change and transmitted by said friction clutch when a gear change command is issued, engine torque is controlled so as to make the output shaft torque appropriate for torque under the gear change transmitted by said friction clutch, and then an engine torque control is switched when the output shaft torque reaches a value appropriate for the torque under the gear change transmitted by said friction clutch to start to change the speed.