• Title/Summary/Keyword: reverse continuously variable damper

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Modeling and Dynamic Characteristics Analysis of a Continuously Variable Damper with Reverse type Semi-active Suspension. (반능동현가장치용 리버스 무단연속가변댐퍼의 모델링 및 동특성 해석)

  • 박재필;최창림;윤영환;최병근;정용길
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2004.05a
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    • pp.937-941
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    • 2004
  • Since semi-active suspension systems of automobile, of which suspension damper are controlled actively, exhibit high performance with light system weight, low cost and low energy consumption. From this view point, semi-active suspension systems are greatly expected to be in the mainstream of future controlled suspension systems. In this Paper, mathematical modeling and dynamic characteristics analysis of a reverse continuously variable damper and valve used for semi-active suspension systems are investigated. The mathematical model of piston with valve are proposed by IMAGINE/AMESim in the paper. To verify the mathematical model developed, the dynamic characteristics are simulated by IMAGINE/AMESim and are compared with experimental results. It was confirmed that the developed models represent well the actual system and can be used for control system design.

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A Development of the Simulation Program for Launching Performance of a Passenger Car equipped Continuously Variable Transmission (무단변속기 장착차량의 발진성능 해석을 위한 시뮬레이션 프로그램의 개발)

  • 김정윤;이장무;여인욱
    • Transactions of the Korean Society of Automotive Engineers
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    • v.7 no.7
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    • pp.157-166
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    • 1999
  • This paper describes the launching characteristics of a passenger car using a Push-Belt type Continuously Variable Transmission(CVT) which equipped a wet type multi-plate clutch asa starting device and a solid flywheel with a torsional damper for a torsional coupling device. To reduce the torsional vibration of the drive-line , some torsional coupling devices were used for the passenger car equipped CVT having the clutch as a starting device especially . In this study, we developed the computer simulation program to investigate the launching characteristics of a passenger car equipped CVT using the mathematical models of this system. For the mathematical models of the vehicle, the CVT, the we type multi-plate clutch and the torsional damper, we obtained the specification and the necessary data through the reverse engineering of those. For the verification of our analysis, we performed the test of prototype car with different throttle positions at road and dynamometer. The launching characteristics of a passenger car considered here an acceleration performance and an ascending performance.

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