Gear actuator for a - / disengaging gears of a gear transmission.

摘要

The present invention relates to a gear actuator for engaging and disengaging gears in an automated manual transmission. The gear actuator comprises a first working piston surface (2), a second working piston surface (4), an auxiliary piston (6) and a pressure control valve (7). The pressure regulating valve (7) controls the pressure for the second working piston surface (4). The first working piston surface (2) and the pressure regulating valve (7) with a system pressure (psy), and which supplies the first working piston surface (2) and the pressure regulating valve (7) are connected via a shut-off valve (8) can be decoupled from the system pressure.