CONSTRUCTION MACHINE CONTROL SYSTEM, CONSTRUCTION MACHINE, AND CONSTRUCTION MACHINE CONTROL METHOD

摘要

A control system includes: a control valve control unit that controls a control valve; a data acquisition unit that acquires data on an operation command value and a cylinder speed in a state where an operation command for operating a hydraulic cylinder is output; and a deriving unit that derives operation characteristics in an operation direction of each of a plurality of hydraulic cylinders in relation to the operation command value based on the data acquired by the data acquisition unit. In acquisition of the data by the data acquisition unit, the control valve control unit controls a control valve of one pilot oil passage that is an acquisition object where the data is acquired among the plurality of pilot oil passages to open one pilot oil passage and controls control valves of the other pilot oil passages to close the other pilot oil passages.

主权项

1. A construction machine control system for a construction machine that includes a work machine including a boom, an arm, and a bucket, the construction machine control system comprising:
a plurality of hydraulic cylinders that allow the work machine to execute one operation of a raising operation and a lowering operation by operating in a first operating direction and allow the work machine to execute the other operation by operating in a second operating direction; a plurality of direction control valves, each of which is disposed in each of the hydraulic cylinders, has a movable spool, and supplies operating oil to the hydraulic cylinder with movement of the spool to operate the hydraulic cylinder; a plurality of control valves that allow the spool to be movable based on a first operating direction operation command for moving the spool to operate in the first operating direction and a second operating direction operation command for moving the spool to operate in the second operating direction; a plurality of cylinder speed sensors, each of which is disposed in each of the hydraulic cylinders and detects a cylinder speed of the hydraulic cylinder; a control unit that controls the control valves; a data acquisition unit that acquires an operation command value indicating a value of an operation command signal to operate the hydraulic cylinder and data indicating the cylinder speed in a state where the operation command signal is output; and a deriving unit that defines operation characteristic of the cylinder speed of the hydraulic cylinder in relation to the operation command value and derives the operation characteristics in an operating direction of each of the hydraulic cylinders based on the data acquired by the data acquisition unit, wherein, in acquisition of the data by the data acquisition unit, the control unit controls one control valve that is an acquisition object where the data is acquired among the control valves to enable the one control valve and controls the other control valves to disable the other control valves.