소음진동 (Journal of KSNVE)

한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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LQG/LTR 설계방법을 이용한 자동차 현가장치 능동제어

Automotive Active Suspension Design Using LQG/LTR Method

  • 황재혁 (한국항공대학교, 항공기계공학과) ;
  • 박봉철 (한국항공대학교 대학원) ;
  • 백승호 (한국항공대학교 대학원)
  • 발행 : 1993.12.01
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초록

An automotive suspension system generally behaves like a low frequency band-pass filter(0.5 - 10 Hz). Passengers are very sensitive to this frequency range in terms of ride quality and road holding ability. In this paper, a LQG/ LTR controller is suggested to improve the ride quality and road holding ability in the specified frequency rage. It has been found by numerical simulation that the ride quality and road holding ability can be improved in the frequency ranges of 0.5 - 3.0 Hz and 0.3 - 2.1 Hz respectively. In addition, a new approach using root locus to evaluate the stability robustness of the active suspension system is studied. It is shown that the stability robustness of the LQG/LTR controller designed in this paper is improved, compared to the passive system.

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참고문헌

  1. Proceedings of IMechE Invariant Properties of Automotive Suspensions Hedrick,J.K.;Butsuen,T.
  2. Vehicle System Dynamics v.21 Power Requirements for Vehicle Suspension Systems Karnopp,D.
  3. J. Dynamic System, Measurement and Control v.111 Alternative Control Laws for Automotive Active Suspensions Yue,C.;Butsuen,T.;Hedrick;J.K
  4. ASME winter Annual Meeting Optimal Semi-Active Suspensions for Automotvie Vehicles; The 1/4 car model Butsuen,T.;Hedrick,J.K.
  5. Vehicl system Dynamics v.16 Road Vehicle Suspension System Design-a Review Sharp,R.S.;Crolla,D.A.
  6. Society of Automotive Engineers Paper no. 892482 A review of Active Suspension Control for On and Off highway Vehicles Claar,P.W.;Vogel,J.M.
  7. 대한기계학회 동역학 및 제어부분 학술강연회논문집 능동형 현가시스템을 위한 모드 sky-hook 감쇠제어기 곽영학;박영진
  8. 대한기계학회논문집 v.16 no.3 모드 연성효과를 고려한 반능동형 현가장치의 진동제어 오재응;이정윤
  9. 대한개계학회논문집 v.14 no.6 민간도해석에 의한 자동차 현가장치의 성능개선에 관한 연구 송척기;박호;오재응;염성하
  10. Linear Optimal Control Systems Kwakernak;Sivan
  11. J. dynamic System, Measurement, and Control v.1114 Robust Linear-Optimal Control Laws for Active Suspension Systems Ray,L.R.
  12. 선형제어 시스템 공학 김종식
  13. 한국소음진동공학회 춘계학술대회 논문집 LQG/LTR 설계방법을 이용한 자동차 현가장치 능동제어 박봉철;황재혁