한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제7권6호
  • /
  • Pages.91-105
  • /
  • 1999
  • /
  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

승용차용 자동변속기의 변속특성향상에 관한 연구

A Study on the Improvement of the Shift Characteristics of the Passenger Car Automatic Transmission

  • 조한상 (서울대학교 대학원) ;
  • 장욱진 (서울대학교 대학원) ;
  • 박진호 (서울대학교 대학원) ;
  • 임원석 (서울산업대학교 자동차공학과) ;
  • 박영일 (서울산업대학교 기계설계학과) ;
  • 이장무 (서울대학교 기계항공공학부)
  • 발행 : 1999.08.01
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초록

Dynamic simulation techniques are developed to analyze the shift characteristics of vehicle powertraisn with automatic transmission. In this study, the mathematical modeling of powertrain components such as engine , clutch system, planetary gear system and road load , is presented for the simulation. The clutch engagement condition, which determines the degree of freedom for the system, is also proposed .By using a detailed nonlinear model of torque converter, it is possibile to accurately analyze the extremely transient state such as the shift. Dynamo-based experiments are carried out to prove the validity of the proposed simulation techniques. Using the developed simulation program, the effects of the dynamic design variables and the control conditions , focused on the shift, are evaluated to improve the driving comforability.

키워드

참고문헌

  1. SAE Techical Paper No. 790043 A Fundamental Consideration on Shift Mechanism of Automatic Transmission Y. Shinko;H. Ito;T. Ishihara
  2. SAE Technical Paper No. 810949 Shift Modulation Electronic Controls Applied to Powershift Transmission R. B. Spokas;F. D. Sturges
  3. SAE Technical Paper No. 720044 Powertrain-Vehicle Modeling to Simulate Shifting Transients of Off - highway Vehicles L. G. Koch
  4. Publishing Committee for Selected Papers of Professor Tomoo Ishihara Selected Papers on Automatic Power Transmission T. Ishihara
  5. SAE Technical Paper No. 850461 Dynamic Behavior of a Torque Converter with Centrifugal Bypass Clutch M. C. Tsanganides;W. E. Tobler
  6. SAE Technical Paper No. 660368 Torque Converter as a Vibration Damper and Its Transient Characteristics T. Ishihara;R. I. Emory
  7. 공학박사 학위논문, 서울대학교 차량용 변속장치의 변속과도특성에 관한 연구 박영일
  8. 공학박사 학위논문, 서울대학교 토크컨버터의 해석/설계와 자동변속장치의 동특성에 관한 연구 임원식
  9. Journal of Mechanical Design & Journal of Vibration and Acoustics, Special Combined Issue;Transactions ASME v.117 no.B Design of Vehicle Power Transmission System J. S. Freeman;S. A. Velinsky
  10. Design Practices : Passenger Car Automatic Transmissions, (3rd Edition) v.AE-18 SAE Inc.
  11. IMechE Journal, C147179 A Model of Clutch Engagement G. G. Lucas;R. Mizon
  12. SAE Transaction v.67 Engagement Characteristics of Wet-Type Clutches L. P. Ludwig
  13. Machine Design Friction-Clutch Transmission, Part 1 Factor in Clutch Performance Z. J. Jania
  14. G7 차세대 자동차기술 개발 자동변속기 기반기술개발에 관한 연구 - 1단계 3차년도 보고서 이교일;박영일(외)