• Title/Summary/Keyword: Vehicle Suspension

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Development of Realtime Simulator for Multibody Dynamics Analysis of Wheeled Vehicle on Soft Soil (연약지반을 고려한 차량 실시간 시뮬레이터 개발)

  • Hong, Sup;Kim, Hyung-Woo;Cho, Yun-Sung;Cho, Hui-Je;Jung, Ji-Hyun;Bae, Dae-Sung
    • Journal of Ocean Engineering and Technology
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    • v.25 no.6
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    • pp.116-122
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    • 2011

  • A realtime simulator using an explicit integration method is introduced to improve the solving performance for the dynamic analysis of a wheeled vehicle. Because a full vehicle system has many parts, the development of a numerical technique for multiple d.o.f. and ground contacts has been required to achieve a realtime dynamics analysis. This study proposes an efficient realtime solving technique that considers the wheeled vehicle dynamics behavior with full degrees of freedom and wheel contact with soft ground such as sand or undersea ground. A combat vehicle was developed to verify this method, and its dynamics results are compared with commercial programs using implicit integration methods. The combat vehicle consists of a chassis, double wishbone type front and rear suspension, and drive train. Some cases of vehicle dynamics analysis are carried out to verify the realtime ratio.

  • https://doi.org/10.5574/KSOE.2011.25.6.116 인용 PDF KSCI

Development of HILS System for Performance Analysis of the ABS ECU for Commercial Vehicles (상용차용 ABS ECU의 성능분석을 위한 HILS 시스템 개발)

  • 황돈하;이기창;전정우;김용주;조정목;조중선
    • Journal of Institute of Control, Robotics and Systems
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    • v.8 no.10
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    • pp.898-906
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    • 2002

  • Antilock Brake System (ABS) is designed to prevent wheels from being locked-up under emergency braking of a vehicle. Therefore it improves directional stability of the vehicle, shortens stopping distance, and enhances maneuvering during braking, regardless of road conditions. Hardware In-the-Loop Simulation (HILS) is an effective tool for design Performance evaluation and test of vehicle subsystems such as ABS, active suspension, and steering systems. This paper describes a HILS model for ABS/ ASR(Acceleration Slip Regulation) system applications. A fourteen degrees-of-freedom vehicle dynamics model is simulated in an alpha-chip processor board. The proposed HILS system is tested with a basic ABS control algorithm. The design and implementation of HILS system for the ABS ECU(Electronic Control Unit) development of commercial vehicle are presented. The results show that the proposed HILS system can be used to test the performance, stability, and reliability of a vehicle under braking.

  • https://doi.org/10.5302/J.ICROS.2002.8.10.898 인용 PDF KSCI