Experimental Studies on Different Actuator-Sensor Configurations of Active Control Systems for the Reduction of Noise and Vibration in Vehicles

Millitzer, Jonathan; Mayer, Dirk; Kraus, Roman; Schmidt, Matthias

doi:10.4271/2016-01-1844

Cited by 4 publications

(2 citation statements)

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“…By cutting off the circuit, both the Ampere force and the magnetic reluctance force vanish. The measured friction is calculated according to equation (1). Then, the identification can be achieved by adjusting the parameters in the LuGre model to minimize the following cost function…”

Section: Parameter Identification In the Lugre Friction Modelmentioning

confidence: 99%

“…The novel active controlled mount (ACM) combined with a hydraulic mount and an electromagnetic actuator can significantly improve the riding comfort of a vehicle by reducing the transmission force from the engine to the chassis, which has potential application. [1][2][3][4][5] In most control methods of the ACMs, a precise lumped parameter model of electromagnetic actuators, that is, the mathematical expression between the input (usually the voltage) and the output (usually the actuator force) of the actuator, is required. [3][4][5] A more accurate lumped parameter model will reduce the burden of the controller and improve the robustness of the system.…”

Section: Introductionmentioning

confidence: 99%

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Nonlinear modeling and verification of an electromagnetic actuator with consideration of friction

Zuo

Zhou

2019

Proceedings of the Institution of Mechanical Engineers, Part D:

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To acquire a perfect vibration isolating performance in the active controlled mount system, a precise model for the actuator is required. In this study, we introduce a novel nonlinear lumped parameter model of the electromagnetic actuator for the engine’s idling or low-speed condition. The model considers not only the nonlinear characteristics caused by the reluctant force, cogging force, and magnetic saturation but also the friction between the mover and the supporting parts. The LuGre friction model is employed to describe the friction during the mover’s reciprocating motion. Then, the quasi-static actuator force of the electromagnetic actuator under constant currents is measured to identify the nonlinear parameters of the model, so is the nonstationary actuator force measured to identify the parameters of the LuGre friction model. Finally, a specific experimental scheme is proposed for validation, in which a suspended ring-shaped iron is added as the actuator’s load. This configuration limits the displacement of the mover effectively, allowing the actuator operate at a frequency of 20–50 Hz and at a peak actuator force of about 8 N, which is close to the actual working condition of the active controlled mount in the engine’s idling or low-speed condition. The results show that the proposed lumped parameter model is able to predict the dynamic characteristics of the actuator precisely. The root mean square errors of the current and actuator force are relatively 3% and 10%, respectively.

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Section: Parameter Identification In the Lugre Friction Modelmentioning

confidence: 99%