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ARS시스템 개발을 위한 시뮬레이션 환경구축 및 Test Bench를 이용한 성능 평가
함승근(Seunggeun Ham),문성준(Sungjun Moon),송현정(Hyunjeong Song),황윤권(Yoonkwon Hwang),박기홍(Kihong Park) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
In this research, the driving logic for operating valves in a hydraulic ARS(Active Roll Stabilization) system has been developed. The ARS system consists of the valve block, pump, reservoir, rotary actuator and hose. For modeling detailed characteristics of this hybrid system including electrical, mechanical, and hydraulic components, the commercial software AEMSim was adopted. The driving logic has been designed using the feedforward and feedback controllers so that once the target torque is entered from the higher level controller, the actuator generates the driving pressures quickly at the front and rear axles. The driving logic was first verified in the simulation environment run by AMESim and Matlab/Simulink, then it was validated in the test bench. In various tests, the driving logic gave satisfactory results in response time and tracking performance.
김원욱(Wonwook Kim),김호석(Hoseok Kim),함승근(Seunggeun Ham),김선희(Sunhee Kim),박기홍(Kihong Park),허승진(Seungjin Heo) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
Vehicle parameters affect the dynamic characteristics of the vehicle. Generally, the vehicle parameters are fixed. However, the parameters may be changed by the options of vehicle and tuning even if the vehicle has been manufactured on the same platform. This paper shows how to analyze ESP performance by the driving simulation test at extreme condition and by changing the vehicle parameters. ESP system was developed using Carsim and Matlab/Simulink. The simulation result are to be presented and discussed in this paper.
차량의 롤각 감소를 위한 ARS 제어 로직 설계 및 실차를 이용한 성능 평가
문성준(Sungjun Moon),김선희(Sunhee Kim),함승근(Seunggeun Ham),송현정(Hyunjeong Song),황윤권(Yoonkwon Hwang),박기홍(Kihong Park) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
Developed in this research is a control logic for the ARS(Active Roll Stabilization) system that uses rotary-type hydraulic stabilizer bars. The hydraulic driver component of the system was modeled and designed using AMESim and its simplified Simulink model that captures the system"s nonlinear characteristics was also constructed for faster simulation. The control logic consists of: a feedforward controller that generates anti-roll moments in response to the lateral acceleration, and a feedback controller that forces the roll angle to track its target value. Estimators were also designed so that the controller takes as input estimated values of the lateral acceleration and the roll angle. The developed ARS control logic was first evaluated via simulation and later it was ported to a microcontroller for validation on a test vehicle. The results showed that the roll angle could be decreased to the targeted levels.