Switching unit for automatic gear, has actuator acting simultaneously on frictionally engaged unit and form-fitting unit to close switching unit, such that actuator increases torque in proportion to actuating pressure of pressure medium

摘要

The switching unit (1) has an actuator that acts simultaneously on frictionally engaged and form-fitting units (32,33) to close the unit (1), so that the actuator increases the torque, in proportion to actuating pressure (P) of the pressure medium, in the actuating pressure area. The actuator closes the unit (33) above a preset threshold value of pressure (P2). The unit (33) is axially arranged between the actuator and the unit (32).