전기-유압 액추에이터를 이용한 굴삭기 에너지 절감에 관한 기초 연구

A study on Energy Saving of the Excavator using Electro-Hydraulic Actuator

  • 윤홍수 (울산대학교 기계자동차공학부 대학원) ;
  • 안경관 (울산대학교 기계자동차공학부) ;
  • 이병룡 (울산대학교 기계자동차공학부) ;
  • 강종민 (볼보그룹코리아(주)) ;
  • 김재홍 (볼보그룹코리아(주))
  • 발행 : 2008.11.05

초록

Today, hydraulic systems play an important role in modern industry for the reasons that hydraulic actuator systems take many advantages over other technologies with high durability and the ability to produce large forces at high speeds. In recent years, electro-hydraulic actuator systems, which combine electric and hydraulic technology into a compact unit, have been adapted to a wide variety of force, speed and torque requirements. Moreover these systems resolve energy consumption and noise problems characteristic existed in the conventional hydraulic systems. Therefore, these systems have a wide range application fields especially in an excavator. So the purpose of this paper is to demonstrate efficiency of the energy saving and present some control algorithms which apply to electro-hydraulic actuator system in the bucket of the excavator. Experiments are carried out to verify the effectiveness of the proposed system with various external loads as in real working conditions.

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