Journal Article10.1016/J.AUTCON.2012.11.009
Analysis of electro-hydraulic lifting system's energy efficiency with direct electric drive pump control
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TL;DR: In this article, an electro-hydraulic lifting and lowering system and a forklift with two lifting zones are analyzed for the free lift and the second lift zones of a modified industrial fork lift with different speeds and payloads.
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About: This article is published in Automation in Construction. The article was published on 01 Mar 2013. The article focuses on the topics: Hydraulic machinery & Energy recovery.
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Citations
Development of Pump and Valves Combined Hydraulic System for Both High Tracking Precision and High Energy Efficiency
Litong Lyu,Zheng Chen,Bin Yao +2 more
TL;DR: A kind of novel pump and valve combined electro-hydraulic system is developed that is able to realize the same high level of tracking precision as the valve control method, but consumes about 35%–47% less of energy.
97
Pump/valves coordinate control of the independent metering system for mobile machinery
TL;DR: In this paper, a three-level controller is proposed to improve the energy efficiency of independent metering systems by incorporating the pump control into the valve control, which is applied to a mini-excavator.
86
A novel hydraulic excavator boom driving system with high efficiency and potential energy regeneration capability
TL;DR: The structure and working principle of the asymmetric pump controlled single rod cylinder system are studied in depth and show that, about 82.7% of the potential energy could be regenerated and reutilized by the proposed system.
85
Review of hybrid electric systems for construction machinery
Xiangyu He,Ying Jiang +1 more
TL;DR: In this article, the authors briefly introduce hybrid electric system (HES) structures for several types of construction machinery and compare their performance with those of other types of machinery, and analyze energy-saving control strategies for construction machinery.
81
Optimization of energy regeneration of hybrid hydraulic excavator boom system
Ying-Xiao Yu,Kyoung Kwan Ahn +1 more
TL;DR: In this article, a variable displacement hydraulic motor and flow control valve were used to regulate the torque and speed of the generator, and to regulate flow through the hydraulic motor, and the resulting energy regeneration efficiency ranged from 33.8% to 57.4%.
63
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TL;DR: In this article, the authors analyzed the difference between the hybrid powered automobile vehicle and hybrid powered construction machinery, and the challenges facing the researchers and the construction machinery manufacturers are discussed, as well as the applications of hybrid systems in construction machinery.
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Design and control of a closed-loop hydraulic energy-regenerative system
Triet Hung Ho,Kyoung Kwan Ahn +1 more
TL;DR: In this article, a hydraulic energy-regenerative system was presented from its proposal through modeling to its control, based on a closed-loop hydrostatic transmission and used a hydraulic accumulator as the energy storage system fabricated in a novel configuration to recover the kinetic energy without any reversion of the fluid flow.
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Research on the system configuration and energy control strategy for parallel hydraulic hybrid loader
Sun Hui,Jing Junqing +1 more
TL;DR: In this article, an energy saving scheme with parallel hydraulic hybrid system is proposed to regenerate and reuse the braking energy normally lost in a conventional loader, which is designed and sized to capture braking energy from normal-moderate braking operating modes while ensuring hybrid system working in higher efficiency region.
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