| 摘要 |
An improved automatic clutch control system for controlling a vehicle master clutch (14) drivingly interposed a throttle controlled engine (12) and a change gear transmission (10) in an automatic mechanical transmission system (AMT) is provided. The control provides at least one modulated clutch engagement mode of operation wherein the clutch is moved rapidly from the fully disengaged to the incipient engagement position (A), and is then moved in a modulated manner, according to logic rules, to the fully engaged position. A monitored clutch actuator (22) parameter is compared to a reference value (C) to determine the expected point of incipient engagement of the clutch. The reference value is periodically updated, to compensate for wear and the like, by monitoring the sensed or calculated value of the monitored clutch actuator parameter at the time a monitored system parameter (108, 110) responds in a manner predictable for the instant of incipient engagement of the clutch.
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