Patent ID: 9605412
Date: 2017-03-28
CPC Classifications: E02F

Claim:
1. A construction machine control system that includes a work machine including a boom, an arm, and a bucket and an operating device receiving an input of an operator's operation command for driving the work machine, the construction machine control system comprising: a hydraulic cylinder that drives the work machine; a direction control valve that has a movable spool and that supplies operating oil to the hydraulic cylinder with movement of the spool to operate the hydraulic cylinder; a control valve that allows the spool to be movable based on the operation command; a cylinder speed sensor that detects a cylinder speed of the hydraulic cylinder; a data acquisition unit that acquires an operation command value indicating a value of an operation command signal for operating the hydraulic cylinder and data indicating the cylinder speed in a state where the operation command signal is output, the data including an initial state where the cylinder speed is zero, a slow-speed area that is a speed area where the cylinder speed is higher than zero and lower than a predetermined speed, and a normal-speed area that is a speed area where the cylinder speed is equal to or higher than the predetermined speed; a deriving unit that derives an operation start operation command value when the hydraulic cylinder in the initial state starts operating and slow-speed operation characteristics indicating a relation between the operation command value and the cylinder speed in the slow-speed area based on the data acquired by the data acquisition unit; a storage unit that stores the operation start operation command value and the slow-speed operation characteristics derived by the deriving unit; and a work machine control unit that controls the work machine based on information stored in the storage unit.