Title :
Electric energy recovery system efficiency in a hydraulic forklift
Author :
Minav, Tatiana A. ; Laurila, Lasse I E ; Immonen, Paula A. ; Haapala, Mari E. ; Pyrhönen, Juha J.
Author_Institution :
Lappeenranta Univ. of Technol., Lappeenranta, Finland
Abstract :
The purpose of this research is to find possibilities to recover electric energy in a hydraulic forklift system. The drive consists of a DTC controlled electric servo motor directly running a reversible hydraulic pump. A real system was built and tested, especially, from the energy recovery point of view. Results of the system were analyzed and compared and according to them, energy can be recovered efficiently from the hydraulic forklift system. Also new ideas and directions of further research were obtained during the research.
Keywords :
fork lift trucks; hydraulic systems; machine control; motor drives; pumps; servomotors; DTC controlled electric servo motor drive; electric energy recovery system efficiency; hydraulic forklift; hydraulic pump; Control systems; Energy efficiency; Engine cylinders; Petroleum; Servomechanisms; Servomotors; Synchronous motors; System testing; Torque control; Valves; Electric energy recovery; electric servo drive; forklift; hydraulics;
Conference_Titel :
EUROCON 2009, EUROCON '09. IEEE
Conference_Location :
St.-Petersburg
Print_ISBN :
978-1-4244-3860-0
Electronic_ISBN :
978-1-4244-3861-7
DOI :
10.1109/EURCON.2009.5167719
