Rollover prevention control using integrated rollover index based on model prediction = 모델 예측 기반 통합 전복 인덱스를 이용한 차량 전복 방지 제어

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The purpose of this study is to estimate the vehicle parameters for rollover control, present an integrated rollover index and rollover control scheme to mitigate the vehicle rollover. Vehicle mass is considered to be a constant parameter for other vehicle safety controls, but it changes according to the number of the passengers or the load weight the vehicle carries. The roll inertia and C.G. height are also variable parameters according to the vehicle mass or the other factors. A rollover index which indicates an impending rollover possibility is developed from an energy index and a phase plane index using the model prediction of the vehicle states. The integrated rollover index takes the advantages of the energy method and the phase plane method for the early but accurate control. The tire force estimators calculate the present vertical, longitudinal and lateral tire forces to determine the maximum available tire force using the tire friction circle to prevent the excessive braking forces. The rollover control scheme is designed to use differential braking forces considering the vehicle side slip angle, yaw rate, roll rate and roll angle. The proposed rollover control algorithm is evaluated via simulation using CarSim and Simulink and via experimentation using a test vehicle. Simulation and experiment results demonstrate the proposed algorithm detects and controls the vehicle rollover efficiently with significantly reduced false activation of the brake.
Advisors
Choi, Sei-Bumresearcher최세범
Description
한국과학기술원 : 기계공학전공,
Publisher
한국과학기술원
Issue Date
2013
Identifier
514902/325007  / 020113702
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 기계공학전공, 2013.2, [ x, 101 p. ]

Keywords

Mass estimation; recursive least square; adaptation law; tire force estimator; rollover control; 차량 질량 추정; 차량 전복 인덱스; 차량 전복 제어; rollover index

URI
http://hdl.handle.net/10203/181742
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=514902&flag=dissertation
Appears in Collection
ME-Theses_Master(석사논문)
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