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차량 안정성 향상을 위한 다채널 브레이크 제어에 관한 연구
이종일(Jongil Lee),김형수(Hyoungsoo Kim),공원재(Wonjae Kong) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
Electronic Stability Control (ESC) system enforced to standard equipment for all passenger vehicle and less than 4500kgf through KMVSS & ECE R13H regulation. The original ESC system is proposed to control vehicle yaw moment when the driver met evasive driving situation such as emergency condition. Previous studies1) are considered about various method of direct yaw moment (DYC) control to reduce vehicle’s yaw moment. In this study, new control methodology is proposed to enhance vehicle stability using multiple corner braking control through optimizing longitudinal deceleration. This paper proposes control algorithm to distribute brake forces not only front axle for control-ability but also rear axle to improve stability. To optimize control-ability and stability of vehicle, optimized brake for distribution is suggested based upon driver intent maneuver situation using simplified vehicle model. Through vehicle model, the proposed algorithm estimate longitudinal deceleration and lateral deceleration to track optimal driving path condition. Proposed algorithm is evaluated through commercial software MSC.CarSim to verify algorithm performance and evaluated regulation test procedure, sine with dwell test. This regulation test procedure shows quantified value of controller performance comparing the original yaw moment control and proposed algorithm.
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