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1/4 차량 현가 장치의 강인 안정성을 보장하는 외란관측기 기반의 제어 시스템 설계
소상균(Sang Gyun So),류정래(Jung Rae Ryoo),도태용(Tae-Yong Doh) 제어로봇시스템학회 2016 제어·로봇·시스템학회 논문지 Vol.22 No.12
The vehicle suspension system plays a very important part related with vehicle ride and handling. To improve the vehicle ride and handling many researches have been progressed from various damping parameter tuning techniques to the development of the electronic controlled suspension systems. In this paper, as one of the ride performance improvement a disturbance observer(DOB) based control system is applied to the quarter car vehicle model in order to show that the DOB can obtain good vibration isolation characteristics. First, the robust stability criterion for the DOB is introduced in detail, and then how DOB is applied to the 1/4 car vehicle model is represented, and finally to confirm the effectiveness of the DOB in vehicle ride performance improvement a computer simulation is carried out for various driving conditions.
[차량운동성능부문] 지능형 현가장치의 제어로직에 관한 연구
소상균(Sang-Gyun So) 한국자동차공학회 2000 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Automotive suspension system is a mechanism for isolation of the vibration coming from the road inputs. Recently, the electronically controlled suspension systems which may improve ride and handling performance have been developed.<br/> Here, the continuously controlled semi-active suspension system is focused. As a mechanism to control damping forces continuously, a solenoid valve is used. The modeling for the solenoid valve is introduced briefly. a vehicle dynamic modeling is constructed, and then combined system model is completed. To design the efficient control algorithm for the semiactive suspension system tile knowledge based fuzzy logic is applied and the technique how to apply the sky-hook theory 10 the fuzzy logic is developed. Finally, to confirm tile improvement of performance the computer simulation is carried out.
소상균,곽성배 한밭대학교 생산기반기술연구소 2003 생산기반기술연구소 논문집 Vol.3 No.1
The main goal of the automotive suspension is to isolate the vibration coming from the roadway unevenness. There are three types of the suspension systems which are the passive, the active, and the semi-active system. The passive system has the limitation of the performance and the active system requires high cost of production. Therefore, the semi-active system is proper to apply to the passenger cars. In this paper, to improve the ride isolation property the advanced research about the better semi-active suspension system is carried out. First, after the vehicle dynamic model is constructed the continuous controlled damper is combined to the vehicle model. And then, the control algorithm to control the vehicle dynamic motion effectively is designed. Finally, the hardware-in-the-loop-simulator is equipped and tested to confirm the system performance.