Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
권호 표지
DOI QR코드

DOI QR Code

Sensitivity Analysis of Steering Wheel Return-ability at Low Speed

  • Cho, HyeonSeok (Suspension and Steering Research Lab, Hyundai Motor Company) ;
  • Lee, ByungRim (Suspension and Steering Research Lab, Hyundai Motor Company) ;
  • Chang, SeHyun (Suspension and Steering Research Lab, Hyundai Motor Company) ;
  • Park, YoungDae (Suspension and Steering Research Lab, Hyundai Motor Company) ;
  • Kim, MinJun (Suspension and Steering Research Lab, Hyundai Motor Company) ;
  • Hwang, SangWoo (Suspension and Steering Research Lab, Hyundai Motor Company)
  • Received : 2016.09.26
  • Accepted : 2017.01.11
  • Published : 2017.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

The steering wheel of a vehicle has a typical characteristic of automatically returning to its neutral state when the driver releases it. Steering returnability originated from the tire forces and kingpin moments. It is proportional to the reaction torque that is generated through the rack and column, which are dependent on suspension and steering geometry. It is also important to accurately predict and design it because steering returnability is related to steering performance. In this study, a detailed multibody dynamics model of a vehicle was designed by using ADAMS/Car and simulated for steering returnability. In addition, a tolerance analysis of the chassis system in terms of part dimension and properties has been performed in order to minimize the design parameters. The sensitivity of the selected design parameters was then analyzed via Design of Experiments(DOE). As a result, we were able to obtain the main parameters through a contribution analysis. It can be used to predict steering returnability and improve its performance, which is represented by the angle of restoration and laterality.

Keywords

References

  1. P. E. Pfeffer, Interaction of Vehicle and Steering System Regarding On-Centre Handling, Ph. D. Dissertation, University of Bath, Bath, 2006.
  2. R. Avachat, J. S. Mahajan and K. Gopalakrishna, "Development of Methodology for Improvement in Steering Returnability," SAE 2008- 01-0494, 2008.
  3. R. P. Rajvardhan, S. R. Shankapal and S. M. Vijaykumar, "Effect of Wheel Geometry Parameters on Vehicle Steering," SAS TECH Journal, Vol.9, Issue 2, pp.11-18, 2010.
  4. R. Ledesma and S. Shih, "The Effect of Kingpin Inclination Angle and Wheel Offset on Medium-duty Truck Handling," SAE 2001-01-2732, 2001.
  5. Y. Cho and U. Lee, "Simulation of Steering Kickback Using Component Load Method," SAE 2004-01-1097, 2004.
  6. Y. Yasui, W. Tanaka, Y. Muragishi, E. Ono, M. Momiyama, H. Katoh, H. Aizawa and Y. Imoto, "Estimation of Lateral Grip Margin Based on Self-aligning Torque for Vehicle Dynamics Ehancement," SAE 2004-01-1070, 2004.
  7. D. Kim, T. Tak, M. Kuk, J. Park, S. Shin, S. Song, H. Chun, C. Kim, S. Cho and N. Cho, "Evaluation and Experimental Validation of Steering Efforts Considering Tire Static Friction Torque and Suspension and Steering Systems Characteristics," SAE 2007-01-3641, 2007.
  8. M. Kurishige, S. Wada, T. Kifuku, N. Inoue, R. Nishiyama and S. Otagaki, "A New EPS Control Strategy to Improve Steering Wheel Returnability," SAE 2000-01-0815, 2000.
  9. T. D. Gillespie, Fundamentals of Vehicle Dynamics, Society of Automotive Engineers, 1992.
  10. M. J. Kim, S. H. Chang, B. R. Lee, Y. D. Park and H. S. Cho, "Rack Force Estimation Method Using a Tire Mesh Model," Transactions of KSAE, Vol.22, No.3, pp.130-135, 2014. https://doi.org/10.7467/KSAE.2014.22.3.130
  11. C. H. Lee and S. S. Kim, "Effects of Steering and Suspension Friction on On-center Handling Characteristics," KSAE Annual Conference Proceedings, pp.945-951, 2012.
  12. M. G. Han, S. J. Kim, J. Y. Lee, K. I. Kim, J. G. Song, J. S. Shim and S. J. Kil, "A Study on Reduction of Rattle Noise in Rack and Pinion of Steering System," KSAE Spring Conference Proceedings, pp.722-727, 2008.
  13. Y. G. Cho, "Vehicle Steering Returnability with Maximum Steering Wheel Angle at Low Speeds," Int. J. Automotive Technology, Vol.10, No.4, pp.431-439, 2009. https://doi.org/10.1007/s12239-009-0049-6
  14. G. H. Jo, S. H. Kim, M. C. Shin, J. Song and C. N. Chu, "Estimation of Steering Torque with Tire Self-aligning Moment and Steering System Modeling," KSAE Spring Conference Proceedings, pp.895-901, 2013.
  15. H. H. Kwon and S. J. Choi, "A Study on the Delopment of the Side Load Coil Spring," Journal of the KSMTE, Vol.7, No.5, pp.98-105, 1998.
  16. W. Matschinsky, Road Vehicle Suspensions, Professional Engineering Publishing Limited, London, 2000.
  17. I. L. Park, B. R. Lee and J. H. Oh, "Improvement of Returnability in the Electric Power Steering Vehicle," KSAE Fall Conference Proceedings, pp.604-609, 2007.