Design and testing of a novel two-way controllable overrunning clutch based magneto-rheological brake

Wenfei Li, Haiping Du, Huan Zhang, Donghong Ning, Shuaishuai Sun, Weihua Li, Yafei Wang

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

In addition to the problem of torque and space optimisation, the heat of magneto-rheological (MR) brake generated by friction during vehicle cruising is also a major problem. Because MR fluids are normally immersed in the rotating disc or discs and electromagnetic casing, there is still friction between the MR fluids and discs even without applying a magnetic field during vehicle cruising. The heat generated by friction during vehicle cruising may seriously affect the braking capacity of magneto-rheological brake. The magneto-rheological brake friction during vehicle cruising also leads to the consumption of vehicle fuel. In order to overcome this problem, a new magneto-rheological brake mechanism is designed in this paper. The new MR brake mechanism consists of three parts. They are two-way overrunning clutch, electromagnetic clutch and conventional MR brake, respectively. These three parts work together to achieve the function of low frictional torque during vehicle cruising and controllable braking torque during braking. The function of low frictional torque during vehicle cruising is achieved by adjusting the work state of two-way overrunning clutch. It is able to disengage the conventional MR brake from the drive shaft during vehicle cruising. Then there is no MR brake friction and no heat generated by friction during vehicle cruising. It is also able to achieve a controllable braking torque during the vehicle braking by coordinated control of two-way overrunning clutch, electromagnetic clutch and the magnetic field applied to the conventional MR brake. The design details and prototypes are presented in the paper.

Original languageEnglish
Article number095013
JournalSmart Materials and Structures
Volume28
Issue number9
DOIs
Publication statusPublished - 2019 Aug 2

Keywords

  • Electromagnetic clutch
  • Magneto-rheological brake
  • Temperature
  • Two way overrunning clutch

ASJC Scopus subject areas

  • Signal Processing
  • Civil and Structural Engineering
  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Electrical and Electronic Engineering

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