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Energy consumption analysis of electro-hydraulic power steering system for seven axle all terrain crane
Published:2022-09-22 author:DU Heng, HONG Yue, LIU Xiao-yang, et al. Browse: 179 Check PDF documents
Energy consumption analysis of electro-hydraulic power 
steering system for seven axle all terrain crane

DU Heng1,2, HONG Yue1,2, LIU Xiao-yang1,2, SHU Yue1,2, LI Yu-zheng1,2

(1.School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China; 2.Key 
Laboratory of Fluid Power and Intelligent Electro-Hydraulic Control, Fuzhou University, Fuzhou 350108, China)

Abstract: Aiming at the high energy consumption of electro-hydraulic power steering system for seven-axle all ground crane, considering the influence of oil source on the energy consumption and efficiency of multiaxle steering system, the energy consumption characteristics of crane multi-axle steering system was studied. Firstly, the energy consumption model of the single-axle steering system was established, and the angle relationship of each steering axle was analyzed based on Ackerman theorem, so as to establish the energy consumption model of the multi-axle steering system. Then, a new energy consumption test cycle containing steering information was innovatively designed. Through simulation, the influence of pump pressure and steering mode on energy consumption of multi-axle steering system under driving conditions was analyzed. Finally, a multi-stage pressure source switching steering energy saving scheme for multi-axle steering system of seven-axle all terrain crane was proposed. The research results show that the pump source pressure and steering mode selection has a direct effect on energy consumption of multi-axle steering system. Based on the multistage pressure source, each axle switches to energy saving scheme, and can be realized with load and grade to model the change of pressure regulating, which can realize the energy saving of multi-axle steering system, and provide some reference for the energy-saving optimization of one-source multi-drive hydraulic systems.
Key words:  seven-axle crane;multi-axle steering system; electrohydraulic power steering (EHPS);energy consumption model; Ackerman principle; test cycle for energy consumption; multi-stage pressure source

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