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Drive control system of operating machine, operating machine including drive control system, and drive control method of operating machine
A drive control system of a hydraulic excavator includes a control device. When accelerating a turning body to a target turning speed, the drive control device controls an operation of the electric motor driving device such that the electric motor outputs high efficiency torque by which a highest electric power efficiency is obtained at the target turning speed. The control device controls an operation of an oil pressure supply device such that residual torque obtained by subtracting the high efficiency torque from target torque is output from an oil-pressure motor.
Drive control system of operating machine, operating machine including drive control system, and drive control method of operating machine
A drive control system of a hydraulic excavator includes a control device. When accelerating a turning body to a target turning speed, the drive control device controls an operation of the electric motor driving device such that the electric motor outputs high efficiency torque by which a highest electric power efficiency is obtained at the target turning speed. The control device controls an operation of an oil pressure supply device such that residual torque obtained by subtracting the high efficiency torque from target torque is output from an oil-pressure motor.
Drive control system of operating machine, operating machine including drive control system, and drive control method of operating machine
YUDATE YOJI (author) / IWABE KAZUYA (author) / MURAOKA HIDEYASU (author)
2017-08-15
Patent
Electronic Resource
English
| European Patent Office | 2017
| European Patent Office | 2019