CONTROL OF AUTOMATIC SPEED CHANGER FOR CAR

摘要

PURPOSE:To provide good shift feeling to the driver by varying the functioning force of high gear shift coupling unit in sub-speed changer with correspondence to the throttle opening and the speed change mode. CONSTITUTION:ECU104 is provided with a throttle opening signal and a shift position signal from throttle sensor 100 and shift position sensor 110 to vary the functioning force of frictional coupling unit for switching a sub-speed changer 40 to high gear shift with correspondence to the throttle opening and the speed change mode. Since the sub-speed changer 40 can be switched to high gear shift through functioning force optimal to respective shift, the speed change impact can be reduced to provide good shift feeling to the driver.