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Modeling of Engine Intake Pressure for Predicting Braking Performance Affected by Altitude

고도에 따른 제동 성능 예측을 위한 엔진 흡기압 모델링

  • An, Kwangman (Department of Mechanical Engineering, The Graduate School of Ajou University) ;
  • Lee, Jisuk (Department of Mechanical Engineering, The Graduate School of Ajou University) ;
  • Park, Jinil (Department of Mechanical Engineering, Ajou University) ;
  • Lee, Jonghwa (Department of Mechanical Engineering, Ajou University)
  • 안광만 (아주대학교 대학원 기계공학과) ;
  • 이지석 (아주대학교 대학원 기계공학과) ;
  • 박진일 (아주대학교 기계공학과) ;
  • 이종화 (아주대학교 기계공학과)
  • Received : 2013.10.31
  • Accepted : 2014.02.26
  • Published : 2014.04.01

Abstract

Reduction of the atmospheric pressure in high altitude affects brake booster system which was operated by the difference between the intake pressure and the atmospheric pressure. So, braking system can not stably perform due to decrease of brake boost pressure. In this study, effects of altitude change on engine intake pressure was analyzed by prediction model of engine intake pressure which was studied previously. And engine intake pressure was simulated by simulation model in various driving conditions and environmental conditions.

Keywords

References

  1. J. H. Kim, Y. D. Kim and M. K. Jung, "A Study to Improve Brake Pedal Feel under Low Booster Vacuum Level," KSAE Annual Conference Proceedings, pp.1379-1383, 2010.
  2. J. H. Choi, K. M. An, J. S. Lee, J. I. Park and J. H. Lee "Modeling of Engine Intake Pressure for Prediction of Brake Performance," KSAE Annual Conference Proceedings, pp.167-170, 2012.
  3. H. B. Song, Modeling and Experiments for the Break-down of Fuel Consumption in a Passenger Car, Ph. D. Dissertation, Ajou University, Gyeonggi, Korea, 2002.
  4. J. B. Heywood, Internal Combustion Engine Fundamentals, McGraw Hill, New York, 1988.
  5. K. S. Park, S. K. Kaoh, S. T. Ro and J. H. Lee, "An Experimental Study of the Air Flow Rate Characteristics at Steady State in an SI Engine," Transactions of KSAE, Vol.5, No.6, pp.1-12, 1997.