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가상주행시험장(SVPG) 개발: Ⅰ. 가상주행시험장의 시스템 구성 및 운영
서명원(Myungwon Suh),구태윤(Taeyun Koo),권성진(Seongiin Kwon),신영수(Youngsu Shin),조기용(Kiyong Cho),박대유(Daeyu Park) 한국자동차공학회 2001 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2001 No.5_2
By using modeling and simulation, today's design engineers are simultaneously reducing time to market and decreasing the cost of development, while increasing the quality and reliability of their products. A driving simulator is the best example of this method and allows virtual designs of control systems, electronic systems, mechanical systems and hydraulic systems of a vehicle to be evaluated before costly prototyping.<br/> The objective of this paper is to develop the virtual proving ground using a driving simulator and to show its capabilities of an automotive system development tool. For this purpose, including a real-time vehicle dynamics analysis system, the PC-based driving simulator and the virtual proving ground are developed by using VR(Virtual Reality) techniques. Also ABS HIL(Hardware-In-the-Loop) simulation is performed successfully.<br/>
[차량운동성능부문] Tractor-Semitrailer 차량의 제동특성 프로그램 개발
서명원(Myungwon Suh),박윤기(Yoonki Park),권성진(Seongjin Kwon),양승환(Seunghwan Yang),박병철(Byungchul Park) 한국자동차공학회 2000 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Recently safety systems for the commercial vehicle have been rapidly developed. However, we still have many problems in the vehicle stability and the braking performance. Especially, a commercial vehicle may meet a dangerous braking condition when the vehicle is lightly loaded or empty and when the road is wet or slippery. Under these conditions, the truck can spin out or the tractor can jackknife or the trailer can swing out. To design the air brake system for the commercial vehicle, since the air brake system has many design variables, there must have been intensive researches on a method how to prevent dynamic instability and how to maximize the vehicle deceleration.<br/> In this study, mathematical models of the tractor-semitrailer and the air brake system including an ABS controller have been constructed for computer simulation. Also, simple examples are applied to show the usefulness of the program. Designers can use this simulation program for understanding the braking characteristics such as trajectory, braking distance, longitudinal deceleration, lateral deceleration, and yaw rate on various road conditions.