| 摘要 |
<P>PROBLEM TO BE SOLVED: To travel at a given travelling speed on condition that a shift position set by a shift operation means is identical even if bodies of working vehicles are different. <P>SOLUTION: The relation between a driving current and a number of output revolutions of HST21 in an adjustment mode for each body is found out and the relation between a driving current value E near the maximum output detected as a detection value near the maximum output which is lowered from the maximum output at a given rate and the number of revolutions, and a driving start current value F at start of output are stored as control data in a control device 50. Driving current values of electromagnetic valves 62 and 63 for rotating a trunnion shaft are controlled using the control data so as to attain the number of revolutions of output shaft of HST 21 corresponding to a travelling speed which is set by a shift operation means 18. <P>COPYRIGHT: (C)2013,JPO&INPIT |
