发明名称 ELECTRIC HYDRAULIC ACTUATOR DEVICE AND CONSTRUCTION MACHINERY
摘要 PROBLEM TO BE SOLVED: To provide an electric hydraulic actuator device in which an actuator can be stabilized to operate by corresponding to the responsiveness of a motor and the hydraulic actuator. SOLUTION: In the electric hydraulic actuator device, a hydraulic pump 11 is connected to the motor 12, working liquid discharged from the hydraulic pump 11 is fed into the hydraulic actuator 9 via a control valve 13, and the motor 12 and the control valve 13 are controlled with a controller 19. When the speed command is input from an operating body 20, the controller 19 computes and outputs the rotation speed command value of the motor 12, while computes the switching direction and switching quantity of the control valve 13, and outputs as the command value. A command value correction part 19a, which retards at least either rising or falling of the rotation speed command value corresponding to the dynamic characteristics of the controller valve 13, is installed in the controller 19. COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2005127344(A) 申请公布日期 2005.05.19
申请号 JP20030360331 申请日期 2003.10.21
申请人 KOBELCO CONTSTRUCTION MACHINERY LTD;KOBE STEEL LTD;KAYABA IND CO LTD 发明人 YOSHIMATSU HIDEAKI;TSUTSUI AKIRA;NANJO TAKAO;EGAWA YOSHIHIRO;KATO KOKI
分类号 E02F9/20;F15B11/00;H02P3/18;(IPC1-7):F15B11/00 主分类号 E02F9/20
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