A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Hydraulic system of construction machine and method for controlling same
The present invention relates to a hydraulic system of a construction machine and a method for controlling the same, the construction machine having a plurality of actuators, each actuator being provided with a pump/motor and operated by control of the corresponding pump/motor, and each pump/motor being driven by power supplied from a single engine. The hydraulic system of a construction machine and the method for controlling the same, according to the present invention, relate to a method for limiting the volume of a pump/motor, which enables silent operation at or below a predetermined torque without stalling the engine or dropping the engine revolution number. In addition, the hydraulic system of a construction machine and the method for controlling the same, according to the present invention, can maintain a balance between the operation rates of respective actuators by reducing the discharge flow rates of respective actuators by a predetermined ratio in cases of torque-based limitation.
Hydraulic system of construction machine and method for controlling same
The present invention relates to a hydraulic system of a construction machine and a method for controlling the same, the construction machine having a plurality of actuators, each actuator being provided with a pump/motor and operated by control of the corresponding pump/motor, and each pump/motor being driven by power supplied from a single engine. The hydraulic system of a construction machine and the method for controlling the same, according to the present invention, relate to a method for limiting the volume of a pump/motor, which enables silent operation at or below a predetermined torque without stalling the engine or dropping the engine revolution number. In addition, the hydraulic system of a construction machine and the method for controlling the same, according to the present invention, can maintain a balance between the operation rates of respective actuators by reducing the discharge flow rates of respective actuators by a predetermined ratio in cases of torque-based limitation.
Hydraulic system of construction machine and method for controlling same
CHO YONG-LAK (author) / JANG DAL-SIK (author) / JUNG WOO-YONG (author) / AN MIN-HA (author) / SEO A-REUM (author)
2015-11-11
Patent
Electronic Resource
English
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