Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Driveline Output Torque Estimation Using Discrete Kalman Filter

이산 칼만 필터를 이용한 구동 출력 토크 추정

  • Gi-Woo, Kim (School of Automotive Engineering, Kyungpook National University)
  • 김기우 (경북대학교 자동차공학부)
  • Received : 2011.08.23
  • Accepted : 2011.11.29
  • Published : 2012.07.01
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Abstract

This paper presents a study on the driveline output torque estimation using a discrete Kalman filter. The in-situ output shaft torque is first measured by a non-contacting magneto-elastic torque transducer. The linear state-space system equations are first derived and the discrete Kalman filter is designed based on the Kalman filter theory to recover the driveline output torque contaminated by random noises. In addition to using torque measurement, the estimation of the output torque using two angular velocities: the output and wheel, is also conducted. The experimental results show that the discrete Kalman filter can be effective for not only removing the random noise in output torque but also estimating the output torque without torque measurement.

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References

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