| 摘要 |
An automated clutch is engaged/disengaged by a slave cylinder 56 operated by a master cylinder 56 which is actuated by an actuator 24 comprising an electric motor 40 driving a worm wheel 42 and crank drive 44. A position sensor 28 detects a rotary position of the electric motor 40 and thereby the position of piston 50 in master cylinder 56. Testing is accomplished by suppling a predetermined current to the motor 40 which results in a sequence of signals from the sensor 28, this sequence of signals is compared with stored ideal values, entered in an electronic control device (26, fig 1), and any deviation is regarded as a fault which is displayed by a fault indicator/display of the control device (26, fig 1) or by a diagnosis device connected to the control device (26, fig 1). In another embodiment, the position of the actuator 24 is associated with the output capacity, eg torque, slip etc, of the clutch and any deviation between a stored capacity and a detected capacity is recorded as a fault in the control device. |
