Estimation Algorithm of Vehicle Roll Angle and Control Strategy of Roll Mitigation Force Distribution

Authors:
  • SCSeunghwan Chung
    Seunghwan Chung
  • HLHyeongcheol Lee
    Hyeongcheol Lee
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Abstract
Estimation Algorithm of Vehicle Roll Angle and Control Strategy of Roll Mitigation Force Distribution Roll over mitigation system;Active roll stabilizer system;Roll angle estimation;Roll stability; The ROM (roll over mitigation) system is a next-generation suspension system that can improve vehicle-driving stability and ride comfort. Currently, mass-produced safety systems, such as ESC (electronic stability control) and ECS (electronic control suspension), enable measurements of longitudinal and lateral acceleration as well as yaw rate through inertial sensor clusters, but they lack direct measurements of the roll angle. Therefore, in this paper, a roll angle estimation algorithm from ESC system sensors and tire normal force has been proposed. Furthermore, this study presents a method for roll over mitigation force distribution between the front and rear of a ROM system. Performance and reliability of the roll angle estimation and roll over mitigation force distribution were investigated through simulations. The simulation results showed that the proposed control algorithm and strategy are reliable during vehicle rollovers.

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