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Drive control algorithm for an independent 8 in-wheel motor drive vehicle
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  • Drive control algorithm for an independent 8 in-wheel motor drive vehicle
  • Drive control algorithm for an independent 8 in-wheel motor drive vehicle
저자명
Kim. Won-Gun,Yi. Kyong-Su,Lee. Jong-Seok
간행물명
Journal of mechanical science and technology
권/호정보
2011년|25권 6호|pp.1573-1581 (9 pages)
발행정보
대한기계학회
파일정보
정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

This paper describes a drive control algorithm based on optimal coordination of drive torque for an independent 8 in-wheel motor drive vehicle. The drive controller improves lateral stability and maneuverability. The drive controller consists of upper level controller and lower level controller. The upper level controller determines front, middle steering angle, additional net yaw moment and longitudinal net force according to the reference velocity and steering commands. The lower level controller coordinates additional tractive and braking forces to guarantee desired longitudinal net force and yaw moment. This controller is based on optimal control theory and takes into consideration the friction circle related to the vertical tire force and friction coefficient acting on the road and tire. Distributed tractive and braking forces are determined as proportional to the size of the friction circle according to the changes at driving conditions. The response of the 8 in-wheel drive vehicle implemented with this drive controller has been evaluated via computer simulations conducted using Matlab/Simulink dynamic model. Computer simulations of an open-loop J-turn maneuver and a closed-loop driver model subjected to double lane change have been conducted to demonstrate improved performance and stability of the proposed drive controller.