| 摘要 |
A clutch actuation system comprises a master cylinder 11 and a slave cylinder 12 connected via a hydraulic pipe 16 having an electrically operable valve, eg solenoid valve 20, controlled by an electronic control unit 15 that receives signal from an engine speed sensor 21, transmission speed sensor 22, gear lever sensor 23 and road wheel speed sensor 24. When a gear is engaged and the signals from the engine sensor 21 and transmission sensor 22 received by the control init 15 indicate that a speed difference is greater than a predetermined amount solenoid valve 20 is operated to restrict flow between cylinders 11, 12 thereby engaging the clutch gradually without shock. In a first and a second embodiment of valve 20 flow is switched between an unrestricted flow and a restricted flow (see figs 2 and 3), while in a third embodiment of valve 20 the restricted flow is variable (see fig 4). |
