Control method for motor vehicle automatic transmission has drive released if engine seizure is detected

摘要

The control method for a motor vehicle automatic transmission uses an actuator (A) to allow interruption of the drive transmission and its reestablishment and an automatic control circuit (C) for the actuator. The method involves monitoring the engine speed to detect a risk of engine seizing and disconnecting the drive of such a risk is detected. Drive can be reconnected automatically or by the driver. If the transmission release has not prevented seizing and controlling starting of the engine.