A method for switching of a transmission gear stages of a motor vehicle in a function of the drive shaft speed

摘要

A method for switching, in particular a - and / or a way of gears of an automatic multi-stage transmission of a motor vehicle, wherein the transmission a gear with a motor output shaft (16) via a as a separating clutch (12) acting friction clutch (12), which can be connected drive shaft (18) and a to a drive wheel or drive wheels of the motor vehicle can be coupled output shaft (20), a switching action as a function of rotational speeds (n) of the waves is effected, wherein each gear in the synchronizing device, acting as a clutch (36) is associated with the drive shaft (18) with the output shaft (20), to be joined with the following steps:– Points of the separating clutch (12) in a towing position in such a way that a small, preferably predefined, drag torque of the motor output shaft (16) on the drive shaft (18) is transmitted, which is sufficient to form a rotational speed (n_On) the drive shaft (18) with the shift clutch (36) to a rotational speed (n_M) the motor output shaft (16) to bring;– Adjusting the speed of the motor output shaft (16) to a predetermined value, which is derived from a rotational speed of a swelling section gear or...