Control apparatus for an automatic transmission and a method for controlling the same

摘要

An engagement force for engaging a first friction engagement element is set to be lower than an engagement force for establishing a predetermined shift stage with a second friction engagement element being engaged when a vehicle is stopped with an acceleration pedal not being operated and a brake pedal being operated under a forward driving range in an automatic transmission. The engagement force for the first friction engagement element is increased when a vehicle starts with the brake pedal released from the operated condition, and the engagement force for engaging the second friction engagement element is decreased when a relative rotational speed between a turbine wheel and a forward movement member becomes equal to or smaller than a predetermined rotational speed.