Active Control of Energy-Regenerative Electromagnetic Suspension Based on Energy Flow Analysis

Abstract

Abstract: The mathematical model for the developed electromagnetic actuator was established and a main/inner-loop control structure was proposed for its active control. The physical constraints of control current and the energy flow states of the inner-loop system were analyzed and a two-mode controller which respectively emphasizes on vibration control and energy regeneration was designed for the main-loop. Simulations were carried out with different road inputs and the results demonstrate that the former mode can improve vehicle ride comfort by more than 30% with battery energy consumption while in the latter mode the ride comfort can be improved by up to 10% with battery charged by regenerated energy.

Key words: active suspension, electromagnetic suspension, energy regeneration, model predictive control, mixed logical dynamical system

CLC Number:

U461.1

HUANG Kun, YU Fan, ZHANG Yong-Chao. Active Control of Energy-Regenerative Electromagnetic Suspension Based on Energy Flow Analysis[J]. Journal of Shanghai Jiaotong University, 2011, 45(07): 1068-1073.

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