NDLI: Design of a new non-rare-earth magnetic variable gear for hybrid vehicular propulsion system

Content Provider	IET Digital Library
Author	Chen, Mu Chau, Kwok Tong Liu, Chunhua
Abstract	This study presents the design of a new non-rare-earth magnetic variable gear (MVG) with 16 electrically controlled gear ratios, which incorporates both the concept of the magnetic gear and the concept of the memory machine. The high-remanence low-coercivity permanent magnet material: namely, the aluminium–nickel–cobalt is adopted to realise the controllable gear ratios. The key is to design the stationary ring newly integrated with magnetising windings in such a way that 16 sets of gear ratios can be achieved so as to fulfil different driving requirements and road conditions. First, the original MVG, the improved MVG and the proposed MVG are discussed. Then, a comprehensive analysis of the proposed MVG is conducted. Consequently, the proposed MVG is extended to electronic-continuously variable transmission for hybrid vehicular propulsion. By using finite element analysis, the electromagnetic performances of three MVGs at various gear ratios are evaluated, hence validating the theoretical design. Moreover, the process of gear-ratio-changing is simulated and analysed. A quantitative comparison among these MVGs is also carried out. Hence, the corresponding validity can be further verified.
Starting Page	153
Ending Page	162
Page Count	10
ISSN	20429738
Volume Number	6
e-ISSN	20429746
Issue Number	Issue 3, Sep (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-est/6/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-est.2015.0034
Journal	IET Electrical Systems in Transportation
Publisher Date	2016-09-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Aluminium-nickel-cobalt Coercive Force Driving Requirements Electric Propulsion Electronic-continuously Variable Transmission Finite Element Analysis Gear-ratio-changing Process Gears Hybrid Electric Vehicle Hybrid Vehicular Propulsion System Low-coercivity Permanent Magnet Material Magnetic Material Magnetising Windings Mechanical Drive And Transmissions Memory Machine Concept MVG Non Rare-Earth Magnetic Variable Gear Numerical Analysis Permanent Magnets Power Transmission Road Condition Stationary Ring Transportation
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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