Patent ID: 7066862
Filing Date: 2006-06-27
Classification: F16H,Y10T

Abstract:
1. A method for a shift control of a power shift transmission, the method which comprises: providing slip-regulated wet clutches operating respectively as an incoming clutch unit and an outgoing clutch unit; closing the incoming clutch unit assigned to a new gear and opening the outgoing clutch unit assigned to an old gear such that the closing and the opening overlap in time; closing the incoming clutch unit substantially up to a working pressure corresponding to a clutch capacity of the outgoing clutch unit after performing a filling operation for providing a filling pressure for the incoming clutch unit, the filling operation being concluded by a filling end; and performing, in case of a manually triggered power shift, the filling operation for the incoming clutch unit with an increased filling pressure corresponding to an order of magnitude of the clutch capacity of the outgoing clutch unit, ascertaining the filling end, and after the filling end is identified, opening the outgoing clutch unit and adapting a clutch capacity of the incoming clutch unit such that the opening of the outgoing clutch unit and the adapting of the clutch capacity overlap in time.