Title :
The research on simulation and control method of direct-operated electro-hydraulic proportional-reducing valve
Author :
Wang, Meng ; Cheng, Peng
Author_Institution :
Sch. of Automotive Eng., Tongji Univ., Shanghai, China
Abstract :
To acquire higher performance of direct-operated electro-hydraulic proportional-reducing valve, driving circuit and controller was developed. Simulation software, AMESim, was used to develop the model of the test bench according to construction and working principles presented in this paper. The results of simulation and experimental test, including pressure control characteristics and frequency response characteristics, are consistent, which proves the model is available. Based on the analysis of simulation, a control method, named dual closed loop consisting of current feed-forward and pressure feed forward, is developed. Both the dynamic characteristics and static characteristics are very good.
Keywords :
closed loop systems; control engineering computing; electrohydraulic control equipment; feedforward; frequency response; mechanical engineering computing; pressure control; valves; AMESim; control method; current feed-forward; direct-operated electro-hydraulic proportional-reducing valve; driving circuit; driving controller; dual closed loop; frequency response characteristics; pressure control characteristics; pressure feed forward; simulation method; simulation software; Analytical models; Frequency response; Integrated circuit modeling; Mathematical model; Software; Springs; Valves; AMESim; electro-hydraulic; feed-forward; proportional-reducing valve;
Conference_Titel :
Electrical and Control Engineering (ICECE), 2011 International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4244-8162-0
DOI :
10.1109/ICECENG.2011.6057810
