2021•Journal of the Japan Society of Applied Electromagnetics and MechanicsOpen access

Proposal of a Slot-less Motor for Electric Power Steering with Small Torque Ripple

Shogo OGATA, Naoto Yamazaki, Takeo Ishikawa

Abstract

As the quality characteristics of electric power steering (EPS) motors, the high average torque, small torque ripple, and small cogging torque are required. This paper proposes a slot-less permanent magnet (PM) synchronous motor for EPS motor, which has theoretically 0 cogging torque. Magnet volume and coil volume are determined by 2-D finite element (FE) analysis. The 3-D FE analysis shows that it has the average torque of 2.667Nm and the torque ripple of 0.053Nm. Therefore, it is verified that the proposed motor has a great decrease of torque ripple.

Open-access reader

About this research paper

What this paper is about

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Cogging torque, Torque ripple, Direct torque control, Torque motor, Stall torque, Torque, Switched reluctance motor, Control theory (sociology)