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Research of Robust H∞ Control in Consideration of Nonlinear Characteristics of an Electromagnetic Actuated Active Suspension Structure
FISITA2016/F2016-NVHF-012

Authors

Yin, Jun; Chen, Xinbo; Wu, Lixin; Luo, Jie - School of Automotive Studies, Tongji University, Shanghai, China
Chen, Xinbo - Clean Energy Automotive Engineering Center, Tongji University, Shanghai, China

Abstract

KEYWORDS–Active suspension, Electromagnetic actuator, Equivalent mass, Structure non-linearity, Robust control

ABSTRACT–
Feature quick response, high efficiency and potential to harvest energy from vibration, electromagnetic actuators are utilized to realize the active suspension design. Basing on a rotary type electromagnetic actuated active suspension (EAAS), the inertia of the actuator and nonlinear characteristics of the specific suspension structure are investigated. The dynamic equations of EAAS is derived according to the investigation. And a robust H∞ control is proposed basing on this dynamic model. With the specific suspension structure built in ADAMS and control strategy implemented in Matlab Simulink, the performance of a control on a real suspension structure is evaluated via this collaborative simulation. Results prove the feasibility and superiority of the proposed robust H∞ control.

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