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- W2348722834 abstract "In order to obtain an advanced operation performance and an improved energy efficiency of hydraulic systems in excavators,electrohydraulic flow matching control(EHMC) systems were introduced,which worked in a synchronous of electro-proportional valves and electro-proportional pumps and open-loop control mode.The principle and characteristics of EHMC systems based on LUDV multi-way valve were analyzed in the experimental prototype of 2 t excavtor.A co-simulation model was built based on AMEsim and Adams.Compared with the LUDV load-sensing(LS) system,the stability,response and energy-saving performance of the EHMC system were investigated in compound action mode of boom and bucket by simulation and experiment.The working conditions of flow saturation and typical excavating were researched experimently.The simulated results are in accordance with the experimental results.It shows that the model is correct.Compared with the LUDV LS system,the systemic performance of dynamic response and stability are improved.The pressure margin of the EHMC system is reduced by more than 0.9-1 MPa,and energy efficiency is improved.The experimental results show that the LUDV EHMC system reduces the pressure margin by about 1 MPa,and 12% of energy-saving performance is achieved,compared with the LUDV LS system in typical excavating test mode." @default.
- W2348722834 created "2016-06-24" @default.
- W2348722834 creator A5030041318 @default.
- W2348722834 date "2012-09-23" @default.
- W2348722834 modified "2023-09-26" @default.
- W2348722834 title "The characteristics of electrohydraulic flow matching control systems for excavators based on LUDV multi-way valve" @default.
- W2348722834 doi "https://doi.org/10.3785/j.issn.1008-973x.2012.08.002" @default.
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