EXPERIMENTAL RESEARCH ON FLOW DIVISION CONTROL FOR MULTI-ACTUATORS OF CONSTRUCTION MACHINE

Abstract

Abstract: For multi-actuator system driven by single pump in construction machine, a new method based on pressure difference sensing and meter-in flow rate feedback control is given to fully use the hydraulic energy from pump on the condition of fulfilling the harmony of the system. According to theoretical analysis, a control strategy combining priority control with flow division control is proposed and tested. Theoretical analysis and experimental study show that the unreasonable distribution of flow rate could be avoided, and the system becames more harmonious and efficient.

Key words: Construction machine, Flow division control, Multi-actuators, Pressure decrease sensing, Contact friction, Energy dissipation, Iwan model, Jointed structure, Macro-slip

CLC Number:

TH137

Zhao Weiliang;Wang Qingfeng;Zhang Yanting;Zhong Tianyu. EXPERIMENTAL RESEARCH ON FLOW DIVISION CONTROL FOR MULTI-ACTUATORS OF CONSTRUCTION MACHINE[J]. , 2005, 41(1): 198-202.

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EXPERIMENTAL RESEARCH ON FLOW DIVISION CONTROL FOR MULTI-ACTUATORS OF CONSTRUCTION MACHINE

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