A Survey of Powertrain Technologies for Energy-Efficient Heavy-Duty Machinery

Zhongyi Quan, Lei Ge, Zhongbao Wei, Yun Wei Li*, Long Quan

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

43 Citations (Scopus)

Abstract

This article presents a comprehensive, multidisciplinary overview of the development of powertrain technologies for energy-efficient heavy-duty earthmoving machines. The heavy-duty earthmoving equipment industry has been among the biggest contributors to emissions globally. However, due to high power demand and multidisciplinary powertrain structures, improving the energy efficiency of heavy-duty mobile machines has been a pressing and challenging task in the industry. To cope with this challenge, hydraulics and power electronics (PE) have been the key driving forces. As such, the relative developments in both fields are covered in this article. For hydraulics, developments of efficient hydraulic circuits will be overviewed in detail along with the introduction of hydraulic energy recovery technologies. In addition, developments of PE architectures in hybrid and electrified machines will be introduced. Furthermore, potential medium-voltage dc mining site power distribution and the valves of wide bandgap devices will also be discussed with the hope to open up new research opportunities in PE. Moreover, emerging hybrid electrohydraulic drive technology is introduced. Based on the overview in this article, it is anticipated that electrohydraulic hybridization will be the future trend in the earthmoving machine industry. Deeper collaboration between the two areas is desirable.

Original languageEnglish
Article number9337910
Pages (from-to)279-308
Number of pages30
JournalProceedings of the IEEE
Volume109
Issue number3
DOIs
Publication statusPublished - Mar 2021

Keywords

  • Electrohydraulic drive
  • heavy-duty machinery
  • hybrid electric vehicle (HEV)
  • hydraulic systems
  • off-road vehicle
  • power electronics (PE)

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