Control method for automatic transmission of motor vehicle involves disengaging static function of automatic transmission when vehicle speed and turbine characteristic parameter of e.g. torque converter is lower than predetermined value

摘要

The method involves disengaging a static function of an automatic transmission when the motor vehicle speed is lower than a limiting speed value and a turbine characteristic parameter of a hydrodynamic starting element e.g. torque converter is below a turbine characteristic parameter limiting value. The initiation criterion is checked to determine if turbine torque of the torque converter is below a predetermined value. An independent claim is included for an automatic transmission for motor vehicle.