DOI QR코드

DOI QR Code

Suppression Control of the Drivetrain-Oscillations of an Electric Vehicle Using Taguchi Method

다구찌 방법을 이용한 전기자동차 구동계의 진동 억제 제어

  • 김호기 (현대자동차(주)하이브리드개발실)
  • Published : 2009.05.01

Abstract

Torsional oscillations of the drivetrain in electric vehicles are generated under rapid driving conditions. These lead to an uncomfortable jerking of the vehicle and an increased stress of the mechanical components. To suppress torsional oscillations, the low pass and notch filters between the torque command from the acceleration pedal and electric motor input torque are suggested. The filter parameters are optimized based on Taguchi method with $L_{18}(3^5)$ orthogonal array. The signal to noise (S/N) ratio mainly depends on slew rate of motor input torque, damping ratio and natural frequency of notch filter. With the proposed suppression control scheme, the S/N ratio is shown to be increased by 4.7dB and the torque overshoot of the drive shaft is reduced to 30%.

Keywords

Electric Vehicle;Torsional Oscillation;Taguchi Method;Robustness;Control Factor;Noise Factor

References

  1. Kim, H. G., Oh, J. S. and Kim, S. G., 2008, 'Modeling of the Mechanical Drivetrain of an Electric Vehicle for Investigation of Torsional Oscillation Characteristics,' Trans. of the KSME (A), Vol. 32, No. 10, pp. 866-872 https://doi.org/10.3795/KSME-A.2008.32.10.866
  2. Menne, M. and Bitsche, O., 2001, 'Comparison of Drivetrain-Oscillation Damping-Algorithms for Electric Vehicles,' EVS 18, Berlin
  3. Menne, M., Goetting, G. and De Doncker, Rik W., 2000, 'A New Test Bench to Evaluate Drivetrain-Oscillations Suppression-Control for Electric Vehicle,' 17th Inter. Electric Vehicle Symposium (EVS 17), Montreal, Canada
  4. Berriri, M., Chevrel, P. and Lefebvre, D., 2008, 'Active Damping of Automotive Powertrain Oscillations by a Partial Torque Compensator,' Control Engineering Practice, 16, pp. 874-883 https://doi.org/10.1016/j.conengprac.2007.10.010
  5. Hsich, C., 1999, 'Automotive Applications Using a Robust Design Approach,' SAE 1999-01-1029
  6. Taguchi, G., 1993, 'Taguchi on Robust Technology Development,' ASME, NY, pp. 87-108