AUXILIARY-POWER-ACTIVATED CLUTCH AND GEAR-SHIFTING DEVICE

摘要

PCT No. PCT/EP88/00727 Sec. 371 Date Jan. 31, 1990 Sec. 102(e) Date Jan. 31, 1990 PCT Filed Aug. 16, 1988 PCT Pub. No. WO89/01881 PCT Pub. Date Mar. 9, 1989.Auxiliary power actuated clutch and gear shifting device for a motor vehicle transmission with function selector and a gear change mechanism controlled by the driver through a clutch actuating mechanism at the clutch pedal wherein a response signal to the driver is received when a gear is engaged in the transmission or the transmission is in neutral. Located at the clutch pedal and connected with it mechanically is a safety device that holds the actuated clutch pedal against movement when a gear is disengaged in the transmission during the shifting of gears. The safety device holds the clutch pedal clamped in actuated position until a gear is engaged in the transmission whence the driver can carry out the procedure of engaging the clutch again in known fashion. The safety device consists of a clamping mechanism that grips a piston rod connecting to the clutch pedal to prevent further operation until the clutch pedal is released. At the time the clutch pedal is clamped the driver's response signal is manifested by lack of spring restoring force on the clutch pedal to return to idle position.