| 摘要 |
<p>PURPOSE:To prevent the occurrence of racing and erroneous starting, by a method wherein, when a hydraulic type automatic clutch, tightened by means of a feed oil pressure increased depending upon the rotation speed of a machine is controlled, a desired clutch feed oil pressure can be always produced despite of a fluctuation in the rotation speed of an engine. CONSTITUTION:The titled controller includes a starting valve, operated in linkage with switching of a clutch complete tightening control valve controlled by a transmission motor (step motor) 110, and a start regulation valve controlled by a force motor 224, and the motors 110 and 224 are respectively controlled by a transmission controller 300. In which case, the controller 300 comprises a feedback control means which controls the start regulating valve so as to maintain a start pressure at a specified value according to the output of a start pressure detecting pressure sensor 321 during idling, a feed forward control means which controls the start regulating valve according to the output of an engine rotation speed sensor 301 during idling, and a switching means for the two means.</p> |
