| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an HST control method that can prevent engine stops caused by an overspeed and an overload of an apparatus such as an engine and a motor. <P>SOLUTION: When an operation command value in a speed increasing direction is input, a control value of a slant-plate tilting amount of a hydraulic pump or a hydraulic motor of the HST is output as a control target value with a command value increased at a prescribed rate with respect to the present value as an upper limit. When an operation command value in a speed decreasing direction is input, the control value of the slant-plate tilting amount of the hydraulic pump or the hydraulic motor of the HST is output as the control target value with a command value decreased at a prescribed rate with respect to the present value as a lower limit. <P>COPYRIGHT: (C)2012,JPO&INPIT |
