Arrangement and method for controlling an adjusting speed of a shift operation in a continuously variable transmission

摘要

The invention relates to an arrangement and a method for controlling an adjusting speed for a change of an actual transmission ratio into a steady-state desired transmission ratio (shifting operation) for a continuously variable transmission mounted in the drive train of a motor vehicle. In the arrangement of the invention, it is provided that the shifting operation is subdivided into individual periods (dT) of fixed duration. During each period (dT), a dynamic desired transmission ratio (udyn) is determined by multiplying the steady-state desired transmission ratio (ustat) by a gradient (udot). The change of the actual transmission ratio (u) into a dynamic desired transmission ratio (udyn) of each period (dT) takes place with a constant adjusting speed (vu).