Patent ID: 8567274

Claim:
A control arrangement for an automated gear shift transmission, particularly a dual clutch transmission for a motor vehicle with a first partial transmission( 26 ) with a first main shaft ( 14 ), and a first counter shaft ( 16 ) with different idler gears which can be engaged with the first counter shaft ( 16 ) by coupling the idler gears ( 17 a , 17 b , 17 c , 17 d ) to the counter shaft ( 16 ), the control arrangement including a gear actuation system ( 62 ), having a first and a second fluid-actuated shift device ( 18 , 19 ), by means of which either one of two of the idler gears ( 17 a , 17 b ) can be coupled to the first counter shaft ( 16 ), the gear actuation system ( 62 ) further including a first and a second gear slide (SS GS 73 , SS GS 51 ), which are respectively assigned to the first and the second fluid-activated shift device ( 18 , 19 ) and by means of which an actuation pressure can be applied to the respective assigned fluid-activated shift device ( 18 , 19 ) in dependence on a first and a second gear shift control pressure, a first and a second accessible shift valve (RV 73 , RV 51 ) assigned respectively to the first and the second gear slides (SS GS 73 , SS GS 51 ) and by means of which respectively the first and the second gear shift control pressure can be adjusted at the respective assigned gear slide (SS GS 73 , SS GS 51 ), so that the second gear shift control pressure of the second gear slide (SS GS 73 ) counteracts the first gear shift control pressure on the first gear slide (SS GS 51 ) and the first gear slide (SS GS 73 ) can thus be blocked by the second gear shift control pressure, the gear actuation system ( 62 ) being designed in such a manner that the second fluid-activated shift device ( 19 ) is selected when the second gear shift control pressure exceeds a first pressure threshold and the first gear slide (SS GS 73 ) of the gear actuation system ( 62 ) being designed in such a manner that, when a second pressure threshold is exceeded by the second gear shift control pressure, an adjustment of an actuation pressure at the first gear shift device ( 18 ) by means of the first gear shift control pressure is no longer possible.