Patent ID: 8047091
Filing Date: 2011-11-01
Classification: F16H,Y10T

Abstract:
1. A method of controlling an automatic transmission of a motor vehicle having clutches controlled by an electronic control unit, the method comprising the steps of: determining rotational speed of an initial transmission stage of the transmission; if a first transmission shifting rotational speed is reached, shifting the transmission from the initial transmission stage to a target transmission stage; ascertaining a target transmission rotational speed of the target transmission stage; ascertaining a speed difference between the target transmission rotational speed and a second shifting transmission rotational speed, with the second shifting transmission rotational speed comprising a rotational speed between the initial transmission rotational speed and the target transmission rotational speed; determining an initial counter value of a counter which depends on the transmission rotational speed difference; beginning at the initial counter value and counting with the counter as time progresses; and if and when a counter value reaches zero, shifting the transmission from the target transmission stage toward the initial transmission stage.