Patent ID: 9309934
Filing Date: 2016-04-12
CPC Classification: F16D,F16H

Claim Text:
1. A method of actuating a shifting element ( 10 , 14 , 18 , 20 ), having three shift positions (A, B, C), with a simply controlled shifting cylinder as an actuating element ( 8 ), the shifting element ( 10 , 14 , 18 , 20 ) for shifting to the three shift positions (A, B, C) and a pressure regulator, the shifting cylinder being designed as a cylinder with one working line and the shifting element ( 10 , 14 , 18 , 20 ) being biased to a first end position (A), by a spring force of at least one spring element ( 22 , 38 , 42 ), and being moved, in opposition to the spring force, to the other shift positions (B, C), the method comprising the steps of: recognizing a central position (B) in that, when a correct shifting element position is reached, a force for moving the shifting element, in opposition to the spring force, abruptly increases and defines an abrupt force increase and, because of this, a specific pressure is set by a pressure regulator for the central position (B).