A Experimental Study on the Measurement and Estimation of Vehicle Center of Gravity

차량무게중심의 측정 및 추정에 관한 연구

  • Lee, Myung-Su (Graduate School of Automotive Engineering, Kookmin University) ;
  • Kim, Sang-Sup (School of Mechanical & Automotive Enginnering, Kookmin University)
  • 이명수 (국민대학교 자동차공학전문대학원) ;
  • 김상섭 (국민대학교 기계자동차공학부)
  • Received : 2009.12.10
  • Accepted : 2010.03.06
  • Published : 2010.09.01

Abstract

The center of gravity on vehicle is a fundamentally important point for assessing and measuring the characteristics of vehicle dynamics. Especially, the center of gravity height on vehicles is the closest factor with respect to rollover accidents in a social issue nowadays. In this paper, the center of gravity height in conjunction with vehicle parameters of vehicle weight, driving axle and roof height after measured by vehicle weight and loading location by means of VCGM developed by KATRI with good performance that the accuracy was less than 0.6% and repeatability 0.3% for vehicles being used in the whole world was observed. As a result of study, the location of center of gravity height on vehicle was able to be estimated with only roof height on vehicle.

Keywords

References

  1. ECE/TRANS/180/Add.8, gtr No. 8 - Electronic Stability Control Systems, UNECE, 2007.
  2. Korean National Police Agency, Traffic Accident Statistics, 2008.
  3. M. S. Lee, S. W. Namkung, H. B. Kwon, S. S. Kim and T. O. Tak, "A Study on the Development of Vehicle Center of Gravity Measurement System," Spring Conference Proceedings, Vol.II, KSAE, pp.800-806, 2006.
  4. G. J. Heydinger, R. A. Bixel, W. R. Garrot, M. Pyne, J. G. Howe and D. A. Guenter "Measured Vehicle Inertial Parameters-NHTSA's Data through November 1998," SAE 199-01- 1336, 1999.
  5. G. J. Heydinger, N. J. Durisek, D. A. Coovert, Sr., D. A. Guenther and S. J. Novak, "The Design of a Vehicle Inertia Measurement Facility," SAE 950309, 1995.
  6. R. A. Bixel, G. J. Heydinger, N. J. Durisek, D. A. Guenther and S. J. Novak, "Development in Vehicle Center of Gravity and Inertial Parameter Estimation and Measurement," SAE 950356, 1995.
  7. http://www.nhtsa.dot.gov
  8. MOCT, Regulations on the Vehicle Safety Assesment Summary, Attachment 5 "rollover Test Procedure and Assesment Method," MOCT Notice 2004-359, 2004.