Combination of map-based and adaptive feedforward control algorithms for active engine mounts

Hausberg, Fabian; Plöchl, Manfred; Rupp, Markus; Pfeffer, Peter E.; Hecker, Simon

doi:10.1177/1077546315626323

Cited by 19 publications

(14 citation statements)

References 26 publications

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“…According to the references [35][36][37], it is assumed that the maximum value of the relative displacement between the engine and the sprung mass is 0.4mm, and the free stroke of the MA in section 5.1 is ±50μm, so take = 8. The other part is the model of the two-degree-of-freedom active mounting system, which is established using equations (14), (24), (25) and (26) based on the derived x-LMS algorithm with state feedback and Sage-Husa Kalman filter. The parameters of the model of the two-degree-of-freedom active mounting system are shown in Table 2.…”

Section: Simulation Of Two-degree-of-freedom Active Mounting Systemmentioning

confidence: 99%

“…Active mounts can achieve better vibration isolation and relative displacement control performance in a broader frequency bandwidth via active force [3][4][5]. In the research of active mounting systems, the actuators and control methods that directly affect system performance have received extensive attention [6][7][8][9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Principle and Control of Active Engine Mount Based on Magnetostrictive Actuator

Si¹,

Bai²,

Qian³

et al. 2020

Preprint

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The engine mount system affects the automobile NVH performance. Active mounts would achieve excellent vibration isolation and relative displacement control performance in a broad frequency bandwidth by outputting controlled force to the mounting system. The actuator and control method of the active mounts determine the system performance. In this paper, an active mount based on the smart material - Terfenol-D rod is proposed, which mainly includes three parts: rubber spring, magnetostrictive actuator (MA), and hydraulic amplification mechanism. Dynamic model of the active mount is correspondingly established. A state feedback control method based on x-LMS algorithm is proposed as well. Specifically, with the consideration of the unmeasurable state parameters in the active mounting system, an x-LMS state feedback controller with the system state as the reference signal is constructed by employing Sage-Husa Kalman filter to realize the state estimation of the active mounting system. Then a detailed analysis of the proposed control method is conducted, with deriving iterative formula of tap-weight vector. Sequentially, the problem of the dependence on the excitation signal in the x-LMS algorithm is addressed. The feasibility and capability of the proposed control method are verified and evaluated by simulation of a two-degree-of-freedom active mounting system.

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Section: Simulation Of Two-degree-of-freedom Active Mounting Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Principle and Control of Active Engine Mount Based on Magnetostrictive Actuator

Si¹,

Bai²,

Qian³

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…To meet the requirements of low emissions and low fuel consumption, downsizing, on-demand cylinders (COD), turbochargers, and active fuel management are applied in vehicles [1][2][3][4][5], which results in changes in the engine vibration excitation level and dominant engine order shown in Figures 1(a) and 1(b). Attenuation of the vibration from the engine is the most challenging and disruptive vibrational problem.…”

Section: Introductionmentioning

confidence: 99%

A Review on Model and Control of Electromagnetic Active Engine Mounts

Zhang

Shi

et al. 2020

Shock and Vibration

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The isolation of the body from engine vibration is the most challenging and disruptive vibrational problem. Active engine mounts (AEMs), especially electromagnetic AEMs, achieve a significant performance improvement in decreasing the wide frequency band vibration. Increasing research interest is necessary to provide the academic community with a guideline for electromagnetic AEMs. Therefore, the current review aims to comprehensively supplement the review of AEMs. The key reviews of electromagnetic AEMs focus on (1) general considerations of electromagnetic AEMs, (2) models, and (3) control strategies. This paper presents a review of the current status and developmental progress of AEMs. A theoretical model, a finite-element model, and the identification (or experimental modelling) of electromagnetic AEMs during the last 2 decades are then studied. Finally, control strategies, such as classical control, adaptive control, and two degree of freedom (2DOF) control, are discussed and compared. The main purpose of this paper is to meet the needs of researchers and engineers engaged in electromagnetic AEM analysis and control.

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“…Buttelmann et al [13] identified the Bode plot of the secondary path between the active absorber and the disturbance sensor on the chassis side of the engine mount. Hausberg et al [14] identified the secondary path between the active engine mount and the accelerometer located on the chassis side of the engine mount for the feedforward control. Fakhari et al [15,16] identified the transfer function of the secondary path between the input current of the ARM and the transmitted force on the engine side by curve fitting, which is expressed by the poles and zeros of the transfer function.…”

Section: Introductionmentioning

confidence: 99%

Model of the Secondary Path between the Input Voltage and the Output Force of an Active Engine Mount on the Engine Side

Zhang

Shi

2020

Mathematical Problems in Engineering

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e active engine mount (AEM) provides an effective solution to improve the acoustic and vibration comfort of a car. e same AEM can be installed for different engines and different vehicle bodies and attenuates the engine vibration, which is one of the most pressing challenges. To study this problem, this paper develops a mathematical model of a secondary path between the input voltage and output force of the AEM on the engine side considering the frequency-dependent characteristic of the stiffness, which includes the structure parameters of the AEM as well as the dynamics of the actuator, the fluid in the inertia track, the foundation (vehicle body), and the attenuated vibrating object (AEM preload or engine). e proposed model is validated by three test cases without vibration excitation, which are performed with different AEM preloads and foundations. e AEM is considered as an active part and passive part, the mass of which is determined experimentally. Parameter effect on the dynamic characteristics of the secondary path of the AEM is studied based on three tests and a numerical simulation.

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Combination of map-based and adaptive feedforward control algorithms for active engine mounts

Cited by 19 publications

References 26 publications

Principle and Control of Active Engine Mount Based on Magnetostrictive Actuator

Principle and Control of Active Engine Mount Based on Magnetostrictive Actuator

A Review on Model and Control of Electromagnetic Active Engine Mounts

Model of the Secondary Path between the Input Voltage and the Output Force of an Active Engine Mount on the Engine Side

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