Hydrauliknotsteuerung für eine zwischen einem Verbrennungsmotor und einem Getriebe angeordnete Reibkupplung

摘要

The invention relates to a hydraulic emergency control for a hydraulically actuated friction clutch (10) fitted between an internal combustion engine and a gearbox as part of an electro-hydraulic clutch control, in which a hydrostatic pump (1) to supply at least one working line (11) is coupled to an output shaft of the internal combustion engine. There is a throttle valve (2) in the working line (11). Up and downstream of the throttle valve there branches off at least one control line (13 and 14) and the control lines are connected to a pilot valve (4) which controls or triggers the application of pressure to the friction clutch (10). The hydraulic node circuit keeps the clutch slip during clutch engagement low through gentle engagement despite the use of simple actuating components. Fast and reliable disengagement also reduces wear and prevents the engine from stalling.