SERVO-ASSISTED CLUTCH AND GEAR SELECTION DEVICE

摘要

A safety device (1) is arranged in a pressure line (2) between the master cylinder (4) mechanically connected to the clutch pedal (3) and a slave cylinder (5) for operating the clutch. The safety device (1) comprises a safety valve (11) and a 2/2 way valve (12) designed as a magnetic valve, and closes the pressure line (2) if no gear is selected in the gearbox (7). The magnetic valve can be cyclically actuated by a control device (9) to prevent jerky clutch engagement during opening of the pressure line (2) after gear selection is completed, in the event of premature operation of the clutch pedal. Clutch engagement may also be effected by suitable pressure control.