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지능형 퓨전센서와 차량모델을 이용한 거동추정 알고리즘 개발
윤득선(Duksun Yun),이창석(Changsuk Lee),조군례(Junlai Zhao),백승환(Seunghwan Beak),손민혁(Minhyok Son),김흥섭(Heungseob Kim),부광석(Kwangsuck Boo) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
This paper describes development of an intelligent sensor measuring displacement between unsprung and sprung mass for intelligent suspension system. The new type sensor, so called vehicle height sensor(VHS), has a new mechanism which detects movement of the sensor rod same as connecting rod in the MR-CDC damper by using a GMR sensor and convert it to the relative displacement from an initial position. Lastly, this paper verifies a specification of sensor by CarSim model simulation. Vehicle steady-state cornering is a significant research area for vehicle handling. The accurate measurement of vehicle yaw rate is important for vehicle dynamics control. The fusion sensor is installed in MR-CDC Damper which is included in each wheel of the vehicle. The accelerations of each wheel of the vehicle are used to calculate the yaw rate at the COG of the vehicle. An estimation scheme is proposed to calculate the yaw rate of the vehicle. In this paper, a roll model is used to describe the vehicle dynamics and the yaw rate error caused by the body side slip angle is also discussed here.
상용 ABS와 성능비교를 통한 슬라이딩 모드 제어기의 제동성능 분석
윤득선(Duksun Yun),백승환(Seunghwan Baek),김흥섭(HeungSup Kim),송정훈(JungHoon Song),부광석(Kwangsuck Boo) 한국자동차공학회 2010 한국 자동차공학회논문집 Vol.18 No.2
This paper analyzes braking performance of ABS with Sliding Mode Controller, which is designed in this research and compared with that of a commercial ABS-ECU only. HILS system for this paper has an existing hydraulic brake line with an ECU of commercial passenger vehicle and it is designed to be cooperated with Sliding Mode Controller and hydraulic line. This paper shows the simulation results to meet the target slip ratio on the various road conditions and displays the performance with Sliding Mode Controller has an improvement than a commercial ABS.
확장형 칼만필터를 이용한 무인 자동차의 자율항법 최적화 알고리즘 개발
윤득선(DukSun Yun),유환신(HwanShin Yu) 한국자동차공학회 2008 한국 자동차공학회논문집 Vol.16 No.3
Unmanned vehicle has a performance for finding the path and the way point by itself, so called orientation and direction. For the more precise navigation performance, Extended kalman filter, which is integrated with inertial navigation system and global positioning system is proposed in this paper. Extended kalman filter's performance is evaluated by the simulation and applied to the unmanned vehicle. The test result shows the effectiveness of Extended kalman filter for the navigation.