Design and energy consumption analysis of a decentralized independent electro-hydraulic control system

IF 5.9 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Ain Shams Engineering Journal Pub Date : 2025-09-29 DOI:10.1016/j.asej.2025.103759

Ruqi Ding , Youpeng Jiang , Fengyuan Yang , Ling Peng , Zhenming Liu , Wei Ma

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Abstract

Decentralized independent electro-hydraulic control system driven by electro-hydraulic actuators (EHAs) has high efficiency and excellent control performance. However, the high costs of EHA restricts the development of systems. This paper conducts a comprehensive investigation of the impact of various separate EHA layouts on both the operational performance and cost of the system. Additionally, a novel semi-decentralized independent electro-hydraulic control system integrating EHAs and load-sensing actuators is proposed and applied to a 6-ton excavator’s manipulator. Considering bucket-soil digging force, an accurate hydraulic-mechanical coupling model of the excavator is established, and a control strategy for four-quadrant energy recovery/storage is designed. The findings indicate that, compared to the traditional load-sensing system, the proposed system can achieve energy-saving rates of up to 44.4 % in simulation models, and an equivalent fuel saving rate of approximately 47.02 % under experimental verification. The proposed system reduces costs by 33 % compared to conventional decentralized systems.

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分散独立电液控制系统的设计与能耗分析

由电液执行器驱动的分散独立电液控制系统具有高效率和优良的控制性能。然而，EHA的高成本制约了系统的发展。本文全面研究了不同的EHA布局对系统运行性能和成本的影响。在此基础上，提出了一种新型的半分散独立电液控制系统，并将其应用于6吨挖掘机机械手。考虑斗土挖掘力，建立了挖掘机精确的液压-机械耦合模型，设计了四象限能量回收/存储控制策略。研究结果表明，与传统负载敏感系统相比，该系统在仿真模型下的节能率高达44.4%，在实验验证下的等效节油率约为47.02%。与传统的去中心化系统相比，该系统的成本降低了33%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Ain Shams Engineering Journal Engineering-General Engineering

CiteScore

10.80

自引率

13.30%

发文量

441

审稿时长

49 weeks

期刊介绍： in Shams Engineering Journal is an international journal devoted to publication of peer reviewed original high-quality research papers and review papers in both traditional topics and those of emerging science and technology. Areas of both theoretical and fundamental interest as well as those concerning industrial applications, emerging instrumental techniques and those which have some practical application to an aspect of human endeavor, such as the preservation of the environment, health, waste disposal are welcome. The overall focus is on original and rigorous scientific research results which have generic significance. Ain Shams Engineering Journal focuses upon aspects of mechanical engineering, electrical engineering, civil engineering, chemical engineering, petroleum engineering, environmental engineering, architectural and urban planning engineering. Papers in which knowledge from other disciplines is integrated with engineering are especially welcome like nanotechnology, material sciences, and computational methods as well as applied basic sciences: engineering mathematics, physics and chemistry.