| 摘要 |
<p>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.</p> |
