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Abstract: A
new control method applied to adjust clutch's displacement minutely is
put forward. While controlling the clutch position of AMT (Automated
mechanical transmission) vehicle, it's necessary to make clutch
disengage or engage for a certain precise displacement, so as to meet
the requirement of vehicle' s start, especially start on a slope or
start with ASR (Anti-slip regulation). Hydraulic cylinder is always
adopted as the perform institution of AMT vehicle's clutch. But its
motion presented to be subjected to many factors in reality, such as the
change of oil' s viscosity and trie restoring force of spring, etc,
which bring difficulty to its control. Using the new method put forward
here, can the self-adaptation to temperature change be achieved, and the
cylinder' s inconsistent load is taken into consideration. It is proved
that the error of clutch' s position control is within ±0,06 mm and this
method has great ability of fault tolerance.
Key words:Hydraulic
cylinder Position control High speed switch electromagnetic valve
CLC No: U463
国家“九五”科技攻关基金(96-A050401)和博士基金资助项目(1999018514). Received 20010428,
received in revised form 20011028 |