Energy Regeneration and Reuse of Excavator Swing System with Hydraulic Accumulator

In order to solve the environmental pollution and the depletion of petroleum energy, construction machine with high efficiency needs to be urgently developed. In this paper we propose a new energy regenerative swing system with a hydraulic accumulator, variable hydraulic motor and proportional flow...

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Bibliographic Details
Published in:International journal of precision engineering and manufacturing-green technology 2020-07, Vol.7 (4), p.859-873
Main Authors: Yu, Ying-Xiao, Ahn, Kyoung Kwan
Format: Article
Language:English
Subjects:
Accumulators
Algorithms
Control algorithms
Control theory
Depletion
Earthmoving equipment
Efficiency
Energy
Energy conservation
Energy consumption
Energy efficiency
Excavators
Flow control
Hydraulic motors
Hydraulics
Motor task performance
Power efficiency
Regeneration
Simulation
Systems design
Valves
Vibration
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Summary:In order to solve the environmental pollution and the depletion of petroleum energy, construction machine with high efficiency needs to be urgently developed. In this paper we propose a new energy regenerative swing system with a hydraulic accumulator, variable hydraulic motor and proportional flow control valve for realizing highly energy efficient construction machine. Furthermore, we proposed a novel control algorithm for the reduction of vibration of upper frame of excavator as well as high energy regeneration and reuse. A test bench was fabricated, and experiments have been conducted. From the experimental results, it was verified that the mean energy regeneration efficiency and energy saving efficiency were 33.4 and 9.2% and the vibration of upper plate of excavator can be assumed to be reduced by experimental results.
ISSN:2288-6206
2198-0810
DOI:10.1007/s40684-019-00157-7