Algorithm for Damping Control in Vehicle Suspension Equipped with Magneto-Rheological Dampers

Makowski, M.

doi:10.1007/978-3-319-96598-7_19

Cited by 3 publications

(9 citation statements)

References 9 publications

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“…While using the presented model, the vehicle motion on the described road was simulated with the velocity given in Figure 11, and the drive time amounted to 30 s. It was assumed that at the initial moment (t = 0), all coordinates and corresponding velocities (see: Equations (11)(12)(13)(14)) were equal to zero.…”

Section: Processing Of Signals In the Control Systemmentioning

confidence: 99%

“…The vehicle considered is equipped with the magneto-rheological dampers (MR dampers) whose characteristic is shown in Figure 6. The following parameters were adopted, shown in the Figure 10 In the MR damper, the parametric variable represents the current flowing through the winding of the coil located at the damper's side [11,31]. On the basis of the presented data, the damper characteristics have been formulated (1) as follows:…”

Section: Simulation Research Of Vehicle Vibrationmentioning

confidence: 99%

“…MR dampers have been used in human prostheses and vehicle seats [8,9]. In the following years, further research related to the development of MR dampers began, which resulted in new solutions presented in publications [10][11][12]. Currently, controlled MR dampers are used in different fields: damping vibrations of buildings [13,14], reducing vibrations of washing machines [15,16], in suspensions of high-speed trains [17,18] and in automotive suspensions [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…Sky-hook and groundhook methods [26,27] are common in semi-active suppression of vehicle vibration. The authors of the work developed original methods of minimizing acceleration in a selected point of the car body [11].…”

Section: Introductionmentioning

confidence: 99%

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Semi-Active System of Vehicle Vibration Damping

Grzesikiewicz¹,

Makowski²

2021

Applied Sciences

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This article discusses the vibration of a vehicle equipped with four semi-active dampers. The friction forces generated in these dampers have crucial influence on the intensity of the vehicle vibration. To estimate the effect of the vehicle vibration damping, a criterial function depending on the values of these forces has been selected. Solving the problem has the purpose of determining four values of the forces at which the criteria function reaches the minimum at any moment. On the basis of the above, signals for the devices controlling the operation of the semi-active dampers are determined. In this work, the analysis of the discussed problem was conducted in regard to the method for determining the optimal force values. Moreover, the results of the simulation of the vibration of the vehicle equipped with semi-active magneto-rheological dampers are presented. In addition, the analysis of the influence of the form of the criterial function on the vehicle vibration damping efficiency is proposed. Based on the tests carried out on the vehicle with MR dampers, the comfort index improved by 51.6%, compared to the classic suspension.

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Section: Processing Of Signals In the Control Systemmentioning

confidence: 99%

Section: Simulation Research Of Vehicle Vibrationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Semi-Active System of Vehicle Vibration Damping

Grzesikiewicz¹,

Makowski²

2021

Applied Sciences

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“…A more detailed description of the method of establishing vectors of damping forces was described in the works [32,33]. The work presents sample numerical studies of a vehicle with controlled damping forces and with an assumed comfort criterion.…”

Section: Numerical Studies Of a Vehicle With Pz Dampersmentioning

confidence: 99%

Study of a Controlled Piezoelectric Damper

Makowski

Knap

2021

Sensors

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In this work an original construction of a vibration damper controlled by means of a valve with a short time of operation lag is presented. The valve-controlling properties of the damper regulates the flow of fluid between the chambers of the damper and was constructed using piezoelectric actuators, whose characteristic feature is the possibility to change dimensions, e.g., length, under the influence of voltage. As a result, by changing voltage it is possible to control the throttle of the flow by changing the width of a gap, which influences a change of damping forces. Such a solution enables a quicker change of damping forces than in other kinds of controlled damper. Due to the obtained properties, the damper may be applied to reduce the vibrations of vehicles and machines that undergo quick-change loads. In the article, the results of experimental studies of the aforementioned damper are presented. Based on the results, dissipative characteristics were determined. Also, results of numerical studies comprising the development of a numerical model of a controlled piezoelectric damper are shown. Results of numerical studies, as well as experimental studies, are presented in the form of dissipative characteristics. Comparison of results of numerical and experimental studies confirms the possibility to apply this kind of construction in semi-active systems of vibration reduction of vehicles and machines.

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Optimization of Damping in a Semi-Active Car Suspension System with Various Locations of Masses

et al. 2023

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The key request for a vehicle suspension system is vibration control and decreasing the actual inertia forces. This ensures ride comfort for the crew and influences the fatigue level of the driver and overall driving safety. Implementing semi-active damping control in the vehicle suspension allows for adjusting the damping process in the vehicle for minimum acceleration applied to the seats, driver, and passengers. In order to implement theoretical analysis, we used a mathematical full-car model in Simulink/MATLAB. As the load, we added simulations of various artificially generated road profiles. The damping coefficient of the semi-active suspension system was optimized for maximum comfort level for a driver only. Results from the full-car simulation process deliver a graph of the output accelerations showing kinematic excitation from road deformities under various locations of vehicle load positions.

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Algorithm for Damping Control in Vehicle Suspension Equipped with Magneto-Rheological Dampers

Cited by 3 publications

References 9 publications

Semi-Active System of Vehicle Vibration Damping

Semi-Active System of Vehicle Vibration Damping

Study of a Controlled Piezoelectric Damper

Optimization of Damping in a Semi-Active Car Suspension System with Various Locations of Masses

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