| 摘要 |
<p>PURPOSE:To stably and highly accurately perform the speed controlling and the like of a hydraulic actuator. CONSTITUTION:At the controlling of an injection molder M equipped with a hydraulic pump 2 consisting of an electromagnetic proportional variable delivery piston pump, the tilting angle of the swash plate of which is changed in response to the magnitude of inputted flow command signal Sf and the delivery Fo of which is changed in response to the tilting angle of the swash plate, and the like, the slip of a pump motor 3 for driving the hydraulic pump 2 is detected so as to correct the magnitude of the flow command signal Sf in order to compensate for the decrease of the delivery Fo due to the increase of the detected slip.</p> |
