HYDRAULICALLY-OPERATED CONSTRUCTION MACHINE ACTUATOR MOVEMENT CONTROL METHOD AND DEVICE USED FOR METHOD REALISATION Russian patent published in 2008 - IPC E02F9/22 

FIELD: construction industry.

SUBSTANCE: group of inventions refers to construction machine control systems and can be used in hydraulically-operated construction machines. Hydraulically-operated construction machine actuator movement control method consists in reference-input signal generated by manipulating handle with inductive position sensor, formation of control effect on hydraulic drive with the help of electric hydraulic converter. In addition hydraulically-operated construction machine actuator speed is measured, and manipulating handle position sensor output signal is compared with output signal of hydraulically-operated construction machine actuator speed measuring unit. Eventually the first difference signal which is converted in integral control, and the output signal of which is compared with output signal of speed measuring unit, is generated, and after that the second difference signal which is converted in second-order two term controller is generated, and then it is supplied to electric hydraulic converter of actuator hydraulic drive.

EFFECT: improving process reliability due to smooth movement of actuators as well as the possibility of obtaining wide range of speed control at variable load of hydraulic drive.

2 cl, 2 dwg