Design of outer rotor IPM type PMSM for 3 wheel electric vehicle

Rok, Hyun; Shin, Kyoo Jae; Seo, Young Ju

doi:10.1109/icems.2011.6073671

Cited by 10 publications

(4 citation statements)

References 3 publications

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“…While PM-based motors are currently the preferred choice for traction applications, induction motors (IMs) have historically been favored for industrial applications due to their robustness and low-cost and as the price of rare-earth materials has risen sharply, there have been efforts to develop IMs for use in electric traction applications [29,37]. The topology of a squirrel cage type outer rotor induction machine (OR-IM), is shown in Figure 8, which can be utilized for IWM-applications [38]. However, the power range is comparatively very low in the proposed topologies, ranging up to only 6 kW [39].…”

Section: Induction Motormentioning

confidence: 99%

In-Wheel Motor Drive Systems for Electric Vehicles: State of the Art, Challenges, and Future Trends

et al. 2023

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Recently, there has been significant attention given to the electrification of transportation due to concerns about fossil fuel depletion and environmental pollution. Conventional drive systems typically include a clutch, reduction gear, and mechanical differential, which results in power loss, noise, vibration, and additional maintenance. However, in-wheel motor drive technology eliminates the need for these components, providing benefits such as higher system efficiency, improved wheel control, and increased passenger comfort. This article offers a comprehensive review of the technology and development of in-wheel motor drives. It begins with an overview of in-wheel motor drives in electric vehicles, followed by an exploration of the types of electric motors suitable for in-wheel motor drives. The paper then presents an industrial state of the art of in-wheel motors, comparing them with conventional motor drives, and reviews the implemented power electronics, control system, and cooling systems. Finally, the paper concludes by providing an outlook on the challenges and future trends of in-wheel drive systems.

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Section: Induction Motormentioning

confidence: 99%

In-Wheel Motor Drive Systems for Electric Vehicles: State of the Art, Challenges, and Future Trends

et al. 2023

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“…The outer rotor induction machine (OR-IM), as shown in Fig. 4(b), can be utilized for direct-drive systems [31]. The IM exhibits the benefits of lower production cost, high temperature duration, and better robustness [32].…”

Section: B Outer Rotor Induction Machinementioning

confidence: 99%

Critical Review of Direct-Drive Electrical Machine Systems for Electric and Hybrid Electric Vehicles

Cai

Kirtley

Lee

2022

IEEE Trans. Energy Convers.

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With ever-increasing concern of fossil fuel storage and environmental pollution, transportation electrification has recently attracted extensive attention. In conventional propulsion systems, the engine is connected to the wheel through a clutch, reduction gearbox, and mechanical differential. The mechanical transmission inevitably results in power loss, noise, vibration, and additional maintenance. With elimination of the gearbox and transmission component, the direct-drive technique exhibits significant advantages of higher systematic efficiency, more flexible wheel control, and better passenger comfort. This paper aims to provide an overview of automobile direct-drive techniques and recent electrical machine developments for direct-drive propulsion systems. Benefits and limitations of various direct-drive machines are summarized and compared with typical industrial products. Finally, the opportunities, challenges, and future development trends are discussed in related to the research "hot spots".

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“…The weight of an interior PM IWM is minimized by modulating the ratio of stack length and external diameter of stator, which leads to a significant improvement in the power per mass . A controlled filling die casting method is proposed to increase the filling ratio of rotor bar and further improve the power per mass of an in‐wheel induction motor . For a high‐performance SPM IWM, possible methods of improving the torque per volume are investigated in .…”

Section: Introductionmentioning

confidence: 99%

Synthetically optimal design of a direct‐drive surface‐mounted permanent magnet in‐wheel motor

Chen

Shu

Song

2020

IEEJ Transactions Elec Engng

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In‐wheel motors (IWMs) are one of the most important key technologies to be used by electric vehicles, hybrid electric vehicles, and fuel cell vehicles. To meet the limitations of the space within the wheel rim, unsprung mass, and drive without a multispeed transmission, IWMs need to be designed to simultaneously have high torque per volume and power per mass and wide high‐efficiency operation region. In addition, it is obligatory to meet the requirements of torque output capacity, speed capacity, torque ripple, peak efficiency, power output capacity, etc. In this paper, a direct‐drive surface‐mounted permanent magnet in‐wheel motor (DSPMIWM) is synthetically optimized. Above design demands are accounted for simultaneously by selecting some of them as the design objectives and setting the others as constraints. Firstly, simplified design equations of the DSPMIWM, which can reduce the number of design variables, are established. The size parameters of the DSPMIWM are classified by constants, indirect design parameters, and direct design parameters. The direct design parameters are selected as optimal design variables. Then, a synthetically optimal design of the DSPMIWM is executed by employing the Kriging method combined with the Latin Hypercube sampling and Genetic Algorithm. Compared with an existing mature design, the torque per volume, power per mass, and high‐efficiency operation region of the studied IWM are still improved while all constraints are met. Finally, the effectiveness of the proposed synthetically optimal design procedure is verified by finite element analysis. © 2020 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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Design of outer rotor IPM type PMSM for 3 wheel electric vehicle

Cited by 10 publications

References 3 publications

In-Wheel Motor Drive Systems for Electric Vehicles: State of the Art, Challenges, and Future Trends

In-Wheel Motor Drive Systems for Electric Vehicles: State of the Art, Challenges, and Future Trends

Critical Review of Direct-Drive Electrical Machine Systems for Electric and Hybrid Electric Vehicles

Synthetically optimal design of a direct‐drive surface‐mounted permanent magnet in‐wheel motor

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