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가상 차량 튜닝 환경(Car-Vatar)을 위한 차량 제어 시스템이 적용 된 다물체 동역학 기반의 차량 모델 개발
송경훈(Kyunghoon Song),이창욱(Changwook Lee),김웅기(Woonggi Kim),주동철(Dongzhe Zhu),김완구(Wangoo Kim),조희제(Huije Cho) 한국자동차공학회 2016 한국자동차공학회 학술대회 및 전시회 Vol.2016 No.11
Traditional vehicle dynamics model for R&H has not been considering control system. It just designed for analyzing chassis structure"s characteristic. But in these day, a vehicle has lots of special control unit to stabilize its motion. And also design engineers has been trying to apply these control system on the model to get more accurate result compare with experimental one. In order to satisfy the field request, traditional vehicle model choose interfacing method with other software which has control algorithm. But these method requires not only different type software but also engineer"s skill to get more stable result. Purpose of this research is development these control algorithm inside of model not interfacing with others. Four major types of control algorithm such as VDC, ABS, EBD and TCS were introduced inside of Virtual vehicle tuning environment(Car-Vatar) model which provides R&H performance data based on multi-body dynamics analysis. We figure out that our new proposed model makes more reliable result.
[특별세션]차량 동역학 해석을 위한 수동, 자동, DCT 통합 변속기 모델 개발
송경훈(Kyunghoon Song),이창욱(Changwook Lee),김웅기(Woonggi Kim),주동철(Dongzhe Zhu),김완구(Wangoo Kim),조희제(Huije Cho) 한국자동차공학회 2016 한국자동차공학회 부문종합 학술대회 Vol.2016 No.5
Traditional vehicle dynamics analysis model uses simple mathematical powertrain model. The simple mathematical model only composed by engine map, gear ratio and stiffness of components and it is very useful for wide range of vehicle dynamics analysis due to its simple concept. But, the model is not adaptive to represent lots of detail characteristics such as impact force caused by engagement timing for variety types of powertrain because it has too much assumption for the simplification. Proposed powertrain model is not a simple mathematical model but is multi body dynamics model which has several bodies to represent important characteristics. The new model integrates 3 kinds of transmission models that are AT, MT and DCT and it designed for representing friction of clutch, efficiency of torque convertor and other important characteristics. The new model not only can be used for more practical analysis but also can provide good simulation performance compare to traditional one.