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International Standard Serial Number:
ISSN 1001-4551
Sponsor:
Zhejiang University;
Zhejiang Machinery and Electrical Group
Edited by:
Editorial of Journal of Mechanical & Electrical Engineering
Chief Editor:
ZHAO Qun
Vice Chief Editor:
TANG ren-zhong,
LUO Xiang-yang
Tel:
86-571-87041360,87239525
Fax:
86-571-87239571
Add:
No.9 Gaoguannong,Daxue Road,Hangzhou,China
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310009
E-mail:
meem_contribute@163.com
Abstract: Aiming at the problem of energy consumption caused by the preset pump pressure margin of the pre-valve compensation load sensing (LS) system of truck crane and the control problem caused by the compound action of the variable amplitude expansion mechanism when the system flow saturation, an electro-hydraulic flow matching control system based on variable speed and an anti-flow saturation control algorithm were proposed. Firstly, the working principle of LS system was analyzed and a variable speed electro-hydraulic flow matching control system applied to truck crane was proposed. Then, the working characteristics and energy consumption characteristics of the variable speed electro-hydraulic flow matching control system were analyzed and an anti-flow saturation control strategy was designed. Finally, the simulation model of LS system and electro-hydraulic flow matching system was built by AMESim software, and the energy saving and anti-flow saturation characteristics of the system were simulated and analyzed. The results showed that compared with LS system, the variable speed electro-hydraulic flow matching system could save 5%~7% energy, and when the system flow was saturated, the flow of the variable speed telescopic mechanism could be distributed according to the proportion of the opening of each main valve, which improved the coordination of the compound action.
Key words: wheeled self-propelled crane; hydraulic transmission; energy consumption characteristics; energy saving effeet; anti-flow saturation control algorithm; variable speed electro-hydraulic flow matching; load sensing(LS)system
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- Chinese Core Periodicals
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- Chinese Sci-tech Core Periodicals
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- SA, INSPEC Indexed
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- CSA: T Indexed
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