Method for controlling a transmission of a vehicle

Abstract

Described is a method for the control of a transmission of a motor vehicle, especially an automatic transmission, with hydraulically activated shifting elements. The shifting elements are shifted to engage or disengage by means of specified pressure pattern (p , p ) which have been input into an electronic control unit. In the said method, an applied pressure (p ) on a disengaged shifting element, by the release of a force flow generated by a holding pressure (p ) is reduced to a shift pressure (p ) and a transmission input speed of rotation (n ) experiences a change dependent upon the applied pressure (p ) on a disengaged shifting element. An adaption of the pressure pattern (p ) of a disengaged shifting element is dependent upon the deviation of an actual release time (T ) of the change of the transmission input speed of rotation from a specified release time (T ) of the transmission input speed of rotation, and is designed in such a manner that, the change in speed of rotation of the transmission input speed of rotation (n ), occurs at a shifting at the preset release time (T ) or in a window of time incorporating that same preset release time (T ).