| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a drive control method of a work machine capable of suppressing energy loss by controlling an oil amount to be supplied from a hydraulic pump to a hydraulic motor corresponding to the control input of a remote control valve, the rotation speed of the hydraulic motor, and a hydraulic oil pressure difference between a suction port and a discharge port of the hydraulic motor. <P>SOLUTION: For the drive control of the work machine for driving a structure by a hydraulic motor 2 driven with hydraulic oil supplied from a hydraulic pump 10 and an electric motor 3 cooperating with the hydraulic motor 2, by executing speed feedback control based on the actual rotation speed of the hydraulic motor 2 and differential pressure feedback control based on the hydraulic oil pressure difference between the suction port and the discharge port of the hydraulic motor 2 for a speed command based on the control input of a remote control valve 5 for determining the operation amount of the structure, a tilt command is generated so as to discharge the required hydraulic oil amount at the actual rotation speed of the hydraulic motor 2, and the tilt angle control of the hydraulic pump 10 is performed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
