Patent ID: 8798881
Filing Date: 2014-08-05
Classification: F16H

Abstract:
1. A method of operating a transmission device ( 1 ) comprising a plurality of friction-locking and form-locking shift elements (A to F) for obtaining different gear ratios (“ 1 ” to “R”), the method comprising the steps of: submitting a shift request for engaging a form-locking shift element (F) to a time delay (t assigning a differential rotational speed (n_diff_F) to the point in time of engagement (T ascertaining an initial gradient of either a transmission input speed or an equivalent rotational speed parameter (n_t) at a point of time (T monitoring and comparing an actual gradient of the transmission input speed or the equivalent rotational speed parameter (n_t) with the initial gradient that was ascertained at the point of time (T ascertaining an absolute deviation between the initial gradient and the actual gradient; and changing a period of the time delay (t