A multipolar SR motor and its application in EV

Gotô, Hidehiro; Suzuki, Yôiti; Nakamura, Kenji; Watanabe, T.; Guo, Hai; Ichinokura, O.

doi:10.1016/j.jmmm.2004.11.432

Cited by 28 publications

(6 citation statements)

References 2 publications

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“…Although this is an order of magnitude less than is used in some wind-turbine generators (see discussion above), the total potential demand for Nd in a worldwide fleet of BEVs with permanent-magnet motors would still be large enough to be of concern. However, there are a number of electric motors that do not use REEs, and at least one of these, the switched reluctance motor, currently under development for electric vehicles (e.g., Goto et al, 2005), is economical, efficient, robust, and high-performing (Lovins and Howe, 1992). Given this, we do not expect that the scarcity of REEs will appreciably affect the development of electric vehicles.…”

Section: Electric Vehiclesmentioning

confidence: 99%

Providing all global energy with wind, water, and solar power, Part I: Technologies, energy resources, quantities and areas of infrastructure, and materials

2011

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Section: Electric Vehiclesmentioning

confidence: 99%

Providing all global energy with wind, water, and solar power, Part I: Technologies, energy resources, quantities and areas of infrastructure, and materials

2011

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“…In a previous work, a compact EV equipped with two 16/20-pole SR motors in rear wheels has been developed as shown in Fig. 1 (1) . However, there are a few studies about driving performance for the prototyped EV.…”

Section: Introductionmentioning

confidence: 99%

A Novel Control Method for In-wheel SR Motor to Implement Torque Vectoring Control for Compact EV

Tashiro

Nakamura

2021

IEEJ Journal IA

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A switched reluctance (SR) motor is simple and robust, and it is less expensive than a permanent magnet (PM) motor as it does not use rare earth magnets. Thus, the SR motor is one of the best in-wheel motors for electric vehicles (EVs). In previous works, a compact EV equipped with two 16/20-pole SR motors in rear wheels was prototyped. This paper proposes a novel control method for the in-wheel SR motor to implement a torque vectoring control for the prototyped EV. Furthermore, the proposed method is validated experimentally.

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“…There have been performed many studies on SR motors as car drive motors [1][2][3]. We attempted at using SR motor for in-wheel direct drive [4]. However, SR motors have lower torque density, and it has been pointed out that it torque ripple is larger than that of PMSMs.…”

Section: Introductionmentioning

confidence: 99%

Reducing Acoustic Noise of Axial‐Gap SRMs by Decreasing Axial Electromagnetic Force Ripple

Tokita

Goto

Ichinokura

2016

Electrical Engineering Japan

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SUMMARY Switched reluctance (SR) motors are motors that utilize the reluctance torque originating in the magnetic saliency between the stator and the rotor, which are made up of an electromagnetic steel sheet and windings without a permanent magnet. Because of their robustness and simple structure, SR motors are suited for use as the in‐wheel motor for traction motors of vehicles. In a flat space such as is present in in‐wheel motors, the axial‐gap structure has an advantage compared with the conventional radial‐gap structure for the space factor of a motor. An axial‐gap in‐wheel SR motor was tested in a microbus, and the bus could be successfully driven. The test results regarding the motor performance were satisfactory. However, the motor emits a loud sound. The acoustic noise of the axial‐gap SR motor is mainly caused by the axial electromagnetic force. This paper presents a method of reducing acoustic noise that is based on a model of the electromagnetic force on the axial‐gap SR motor.

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A multipolar SR motor and its application in EV

Cited by 28 publications

References 2 publications

Providing all global energy with wind, water, and solar power, Part I: Technologies, energy resources, quantities and areas of infrastructure, and materials

Providing all global energy with wind, water, and solar power, Part I: Technologies, energy resources, quantities and areas of infrastructure, and materials

A Novel Control Method for In-wheel SR Motor to Implement Torque Vectoring Control for Compact EV

Reducing Acoustic Noise of Axial‐Gap SRMs by Decreasing Axial Electromagnetic Force Ripple

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