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A platform for research: civil engineering, architecture and urbanism
DEVICE FOR CONTROLLING ENGINE AND HYDRAULIC PUMP OF CONSTRUCTION EQUIPMENT AND CONTROL METHOD THEREFOR
Disclosed are: a device for controlling an engine and a hydraulic pump of construction equipment, capable of increasing fuel efficiency by controlling an engine speed and a hydraulic pump discharge flow rate according to the load of a work device; and a control method therefor. The device for controlling the engine and a hydraulic pump of construction equipment, according to the present invention, comprises: a fuel efficiency selection mode means; an engine RPM control means; a hydraulic pump control means; a work device operation sensing means; and a controller having a first control mode such that in the case of selecting the fuel saving mode, the engine RPM is outputted at the RPM lower than that of the general mode while a swash plate swivel angle of the hydraulic pump is increased corresponding to the operation amount of the operation lever, and in the case of the swash plate swivel angle of the hydraulic pump reaching the maximum angle, the engine RPM is increased so as to discharge the flow rate corresponding to the operation amount of the operation lever.
DEVICE FOR CONTROLLING ENGINE AND HYDRAULIC PUMP OF CONSTRUCTION EQUIPMENT AND CONTROL METHOD THEREFOR
Disclosed are: a device for controlling an engine and a hydraulic pump of construction equipment, capable of increasing fuel efficiency by controlling an engine speed and a hydraulic pump discharge flow rate according to the load of a work device; and a control method therefor. The device for controlling the engine and a hydraulic pump of construction equipment, according to the present invention, comprises: a fuel efficiency selection mode means; an engine RPM control means; a hydraulic pump control means; a work device operation sensing means; and a controller having a first control mode such that in the case of selecting the fuel saving mode, the engine RPM is outputted at the RPM lower than that of the general mode while a swash plate swivel angle of the hydraulic pump is increased corresponding to the operation amount of the operation lever, and in the case of the swash plate swivel angle of the hydraulic pump reaching the maximum angle, the engine RPM is increased so as to discharge the flow rate corresponding to the operation amount of the operation lever.
DEVICE FOR CONTROLLING ENGINE AND HYDRAULIC PUMP OF CONSTRUCTION EQUIPMENT AND CONTROL METHOD THEREFOR
KIM DONG-SOO (author) / LEE SANG-HEE (author)
2017-02-09
Patent
Electronic Resource
English
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