| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a control device of a hydraulic actuator, which can preferably prevent the deterioration of controllability at low oil temperature as a result of learning a holding control amount at high oil temperature. <P>SOLUTION: There is provided the control device of the hydraulic actuator, which performs feedback control of a phase so as to converge an actual phase to a target phase and learns a duty command value where variation speed of the phase is "0" as the holding control amount. An electronic control unit 17 specifies a range of a dead zone of the duty command value in which a variation of the variation speed of the phase relative to the variation of the duty command value is small and controls the holding control amount so that the value is maintained in the specified range of the dead zone. <P>COPYRIGHT: (C)2012,JPO&INPIT |
