DRIVE CONTROL DEVICE FOR CONSTRUCTION EQUIPMENT AND CONTROL METHOD THEREFOR

摘要

Disclosed are: a drive control device for construction equipment, capable of reducing shock generation and smoothly operating a work device when operating the work device during the driving thereof; and a control method therefor. The drive control device, according to the present invention, comprises: a first work device and a first drive motor, which operate by the hydraulic oil of a first hydraulic pump; a second work device and a second drive motor, which operate by the hydraulic oil of a second hydraulic pump; a first drive control valve and a first work device control valve, which are provided on the supply path of the first hydraulic pump; a second drive control valve and a second work device control valve, which are provided on the supply path of the second hydraulic pump; a linear drive control valve provided to the upper side of the supply path of the second hydraulic pump; a parallel path having an inlet branched and connected to the upper side of the supply path of the second hydraulic pump and an outlet connected to the inlet port of the second work device control valve; a branch path having an inlet branched and connected to a predetermined position of the parallel path and an outlet branched and connected to a path between the linear drive control valve and the second drive control valve; a fixed orifice provided to the branch path; and a first proportional control valve provided to a path between a pilot pump and the linear drive control valve.