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Zhe-ming Tong


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Journal of Zhejiang University SCIENCE A 2020 Vol.21 No.5 P.331-349


Energy-saving technologies for construction machinery: a review of electro-hydraulic pump-valve coordinated system

Author(s):  Zhe-ming Tong, Shuang-shuang Wu, Shui-guang Tong, Yu-qing Yue, Yuan-song Li, Zheng-yu Xu, Yu-wei Zhong

Affiliation(s):  State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China; more

Corresponding email(s):   tzm@zju.edu.cn, cetongsg@zju.edu.cn

Key Words:  Construction machinery, Energy saving, Pump-valve coordinated systems, Control algorithm, Hydraulic systems

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Zhe-ming Tong, Shuang-shuang Wu, Shui-guang Tong, Yu-qing Yue, Yuan-song Li, Zheng-yu Xu, Yu-wei Zhong. Energy-saving technologies for construction machinery: a review of electro-hydraulic pump-valve coordinated system[J]. Journal of Zhejiang University Science A, 2020, 21(5): 331-349.

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publisher="Zhejiang University Press & Springer",

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%A Zhe-ming Tong
%A Shuang-shuang Wu
%A Shui-guang Tong
%A Yu-qing Yue
%A Yuan-song Li
%A Zheng-yu Xu
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%J Journal of Zhejiang University SCIENCE A
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%DOI 10.1631/jzus.A2000094

T1 - Energy-saving technologies for construction machinery: a review of electro-hydraulic pump-valve coordinated system
A1 - Zhe-ming Tong
A1 - Shuang-shuang Wu
A1 - Shui-guang Tong
A1 - Yu-qing Yue
A1 - Yuan-song Li
A1 - Zheng-yu Xu
A1 - Yu-wei Zhong
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A2000094

With the rapid development of the global economy, more and more attention has been paid to the energy conservation of construction machinery. The hydraulic system is the key component of construction machinery, and improving its energy utilization rate has become an important means to achieve energy conservation. In conventional valve-controlled or pump-controlled hydraulic systems of construction machinery, controllability and energy-saving performance typically cannot be considered at the same time. The pump-valve coordinated system combines the energy-saving characteristics of the pump-controlled system and the high-precision and high-frequency response of the valve-controlled system, which has the potential to become a primary research direction of electro-hydraulic systems. This review summarizes the recent research progress in energy-saving technologies based on pump-valve coordinated systems. Particularly, we discuss the structures of hydraulic systems in different categories of construction machinery, various control methods of the electro-hydraulic system, novel hydraulic hybrid energy regeneration systems, and key components. In addition, future directions and challenges of the pump-valve coordinated systems are described, such as independent metering system (IMS), common pressure rail (CPR), and hybrid power source (HPS).


概要:随着全球经济的飞速发展和工程机械全球保有量的持续上升,工程机械的节能问题变得越来越突出. 液压系统是工程机械的关键子系统,因此提高其能源利用率是当前实现工程机械节能的重要手段之一. 而在传统的阀控或泵控液压系统中,由于受阀件和液压泵的固有特性制约,系统可控性和节能性通常无法得到兼顾. 泵阀协控系统将泵控系统的节能特性与阀控系统的高精度和高频率响应相结合,使其成为当前电液系统的一个研究热点. 本文总结了泵阀协控电液系统节能技术的最新研究进展,并重点分析了不同类型工程机械的液压系统结构、电动液压系统的控制方法、新型液压混合能量再生系统以及关键部件. 同时,从负载口独立控制技术、共压导轨技术(CPR)和混合动力源系统三个方面探讨了泵阀协控系统的未来发展方向和面临的挑战.
关键词:工程机械; 节能; 泵阀协控系统; 控制算法; 液压系统

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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