ENGINE CONTROL DEVICE FOR WORK MACHINE WORK MACHINE AND METHOD FOR CONTROLLING ENGINE OF WORK MACHINE

摘要

An engine control device of a working machine includes a rotating body, a working machine mounted on the rotating body, a hydraulic actuator for operating the working machine, a hydraulic pump for operating the hydraulic actuator, and a hydraulic pump, The control unit controls the internal combustion engine of the working machine having the internal combustion engine. Wherein the engine control device of the working machine includes a judging section that judges whether or not a condition in which an operation by the working machine is unnecessary has been established and a judging section that judges whether or not the operating oil discharged from the hydraulic pump is relieved, Includes an engine control unit for making the control at the time of relief determining the target rotational speed targeted by the internal combustion engine effective based on the horsepower absorbed by the internal combustion engine and for invalidating the control at the time of relief when the condition is not satisfied do.