| 摘要 |
<p>The clutch comprises a hydraulic master cylinder (58) whose piston (81) is actuated by a clutch pedal (78). This is accessible to the driver during emergency operation only. A position sensor (88) detects that position of the piston, in which it has almost or completely reached its max. operating stroke. The output pressure chamber (82) of the master cylinder is connected to an equalization container (76), when the bistable preselector valve (61) is in its first position. First actuation of the piston moves the valve into its second position. In this position, the output pressure chamber is connected via an emergency operation reversing valve (59), to the coupling slave cylinder (32) of the power intensifier (23).</p> |
