Title: Linearisation modelling and active performance simulation of active engine mounts with an oscillating coil actuator for automotive powertrain

Authors: Rang-Lin Fan; Jia-Ao Chen; Chu-Yuan Zhang; Zhen-Nan Fei; Pu Wang; Quan-Fa Wu

Addresses: School of Mechanical Engineering, University of Science and Technology Beijing, Beijing, 100083, China; Shunde Graduate School of University of Science and Technology Beijing, Foshan, 528399, China ' School of Mechanical Engineering, University of Science and Technology Beijing, Beijing, 100083, China ' School of Mechanical Engineering, University of Science and Technology Beijing, Beijing, 100083, China ' School of Mechanical Engineering, University of Science and Technology Beijing, Beijing, 100083, China ' School of Mechanical Engineering, University of Science and Technology Beijing, Beijing, 100083, China ' Anhui Eastar Active Vibration Control Technology Co., Ltd., Anhui Eastar Auto Parts Co., Ltd., Tongling, 246700, China

Abstract: Active engine mounts (AEMs) are key elements for improving automotive noise, vibration and harshness (NVH) performance. An accurate AEM model is crucial for its active control. This work focuses on the establishment and verification of a linear model for AEM with an oscillating coil actuator (OCA). Experiments and simulations of an actuator with an attached decoupling membrane and a conventional hydraulic engine mount (HEM) are employed to verify the fundamental linear models for an OCA and HEM. An integrated linear model for an AEM with an OCA is established and verified by experimental analysis of active characteristics. Based on the AEM linear model, three control algorithms, i.e., PID, Fuzzy PID and FxLMS, are established to implement an active isolation performance simulation. The FxLMS is superior to the other two algorithms for an AEM considering the active performance for rotary machine.

Keywords: active engine mount; AEM; active hydraulic mount; active control mount; oscillating coil actuator; OCA; linearisation modelling; lumped parameter model; active characteristics; passive characteristics; powertrain mounting system; automotive; rotary machine; noise; vibration and harshness; NVH.

DOI: 10.1504/IJVD.2021.120415

International Journal of Vehicle Design, 2021 Vol.85 No.2/3/4, pp.178 - 196

Received: 25 Mar 2020
Accepted: 16 Oct 2020
Published online: 19 Jan 2022 *

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