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SWING CONTROL SYSTEM FOR HYBRID CONSTRUCTION MACHINE
Disclosed is a swing control system for a hybrid construction machine, in which the swing inertia of a hybrid construction machine is detected to drive a swing motor by a certain swing acceleration irrespective of changes in the swing inertia. According to the present invention, a swing control system for a hybrid construction machine comprises: a swing operating lever; an electric swing motor which is driven according to the operation of the swing operating lever; a speed detection sensor which detects the rotary speed of a swing motor; a controller that calculates the driving speed of the swing motor by a swing operating signal created by the operation of the swing operating lever and by a detecting signal of the rotary speed, which is fed back from the speed detection sensor; an inverter which drives the swing motor by a control signal from the controller; a swing inertia detector that detects the swing inertia of equipment, which is changed according to positional changes of a working device, and outputs a torque compensation value in accordance with equipment inertia; and an inertia torque compensator which compares the torque compensation value in accordance with the equipment inertia, detected by the swing inertia detector, with a torque value from the controller, and outputs a calculated torque value for controlling the swing motor to the inverter.
SWING CONTROL SYSTEM FOR HYBRID CONSTRUCTION MACHINE
Disclosed is a swing control system for a hybrid construction machine, in which the swing inertia of a hybrid construction machine is detected to drive a swing motor by a certain swing acceleration irrespective of changes in the swing inertia. According to the present invention, a swing control system for a hybrid construction machine comprises: a swing operating lever; an electric swing motor which is driven according to the operation of the swing operating lever; a speed detection sensor which detects the rotary speed of a swing motor; a controller that calculates the driving speed of the swing motor by a swing operating signal created by the operation of the swing operating lever and by a detecting signal of the rotary speed, which is fed back from the speed detection sensor; an inverter which drives the swing motor by a control signal from the controller; a swing inertia detector that detects the swing inertia of equipment, which is changed according to positional changes of a working device, and outputs a torque compensation value in accordance with equipment inertia; and an inertia torque compensator which compares the torque compensation value in accordance with the equipment inertia, detected by the swing inertia detector, with a torque value from the controller, and outputs a calculated torque value for controlling the swing motor to the inverter.
SWING CONTROL SYSTEM FOR HYBRID CONSTRUCTION MACHINE
SCHWINGSTEUERUNGSSYSTEM FÜR EINE HYBRIDBAUMASCHINE
SYSTÈME DE COMMANDE DE PIVOTEMENT DESTINÉ À UN ENGIN DE CONSTRUCTION HYBRIDE
CHOI DONG-UK (Autor:in)
21.06.2017
Patent
Elektronische Ressource
Englisch
IPC:
E02F
Baggern
,
DREDGING
SWING CONTROL APPARATUS FOR HYBRID CONSTRUCTION MACHNERY
Europäisches Patentamt | 2017