| 摘要 |
<p>A first valve opening degree correction value computation unit (61) computes a correction value (first valve opening degree correction value (”¸1*)) for the absolute value (|¸B*|) of a valve opening degree command value (¸B*) on the basis of a rotation speed deviation (”VP (= VP* - VP)) computed by a rotation speed deviation computation unit (75) in a pump driving motor control unit (70). A second valve opening degree computation unit (62) computes a correction value (second valve opening degree correction value (”¸2*)) for the valve opening degree command value (¸B*) on the basis of the sign of the valve opening degree command value (¸B*) and the first valve opening degree correction value (”¸*). A correction value addition unit (63) adds the second valve opening degree correction value (”¸2*) to the valve opening degree command value (¸B*) set by the valve opening degree command value setting unit (52).</p> |
