Research on hierarchical control strategy of electromagnetic active mounting system
by Chen Zheming; Wang Heng; Lai Chenguang
International Journal of Vehicle Performance (IJVP), Vol. 7, No. 1/2, 2021

Abstract: In order to improve the vibration isolation performance of the automotive powertrain mounting system, a hierarchical control strategy is proposed according to the structural characteristics of the electromagnetic active mounting system and the influence of the dynamic characteristics of the actuator on the system control accuracy. Based on the analysis of the active mounting system, the mathematical model of the mounting system and the electromagnetic actuator control circuit is derived. Guided by hierarchical control strategy, upper and lower controllers are designed for mount part of the active mounting system and actuator circuit respectively. The results show that compared with the active mounting system under traditional control, the system designed according to the hierarchical control strategy can provide more precise control, which not only improves the vibration isolation performance of the powertrain mounting system to a certain extent, but also renders a better robustness and force tracking property.

Online publication date: Thu, 04-Mar-2021

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