Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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3D FE Analysis of Hall Effect Torque Sensor and Shape Design of Its Stator teeth

홀소자 토크센서의 3차원 유한요소해석 및 고정자 치 형상설계

  • Lee, Bo-Ram (School of Information and Communication Engineering, Sungkyungkwan University) ;
  • Kim, Young-Sun (School of Information and Communication Engineering, Sungkyungkwan University) ;
  • Park, Il-Han (School of Information and Communication Engineering, Sungkyungkwan University)
  • 이보람 (성균관대학교 정보통신공학부) ;
  • 김영선 (성균관대학교 정보통신공학부) ;
  • 박일한 (성균관대학교 정보통신공학부)
  • Published : 2009.07.14
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Abstract

Electric Power Steering(EPS) system is superior to conventional Hydraulic Power Steering(HPS) system in aspect of fuel economy and environmental concerns. The EPS system consists of torque sensor, electric motor, ECU(Electric Control Unit), gears and etc. Among the elements, the torque sensor is one of the core technologies of which output signal is used for main input of EPS controller. Usually, the torque sensor has used torsion bar to transform torsion angle into torque. The torsion angle of both ends of a torsion bar is measured by a contact variable resistor. In this paper, the sensor is accurately analyzed using 3D finite element method and its characteristics with respect to four different shapes of the stator teeth are compared. The four shapes are rectangular, triangular, trapezoidal and circular type.

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