| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an automatic clutch controller smoothly capable of releasing and engaging a clutch in time of slow speed traveling, and excellent in durability and power-saving properties. SOLUTION: This controller calculates a stroke deviationΔS (=SM-SD) (210 to 240) based on a target stroke SM set up on the basis of an accelerator manipulated variable A read out of an accelerator sensor and an actual stroke SD read out of a stroke sensor, and in time of need to drive a clutch in the releasing direction, a duty ratio of a servo valve and a motor revolution are set up (250 to 280) on the basis of this stroke deviationΔS. The duty ratio of the servo valve is set to a small value, insomuch that the stroke deviationΔS becomes smaller so as to make the clutch smoothly operate, and an oil flow rate to drive the clutch is restricted, but simultaneously with this, when the stroke deviation S is less than an allowable value G0, the motor revolution is set to be a small value so as to make the driving force commesurate to the oil flow rate.</p> |
