Comparison of braking properties of selected vehicle with different methods

Gogola, Marián; Ondruš, Ján; Kubaľák, Stanislav; Turiak, Pavol

doi:10.14669/am.vol95.art1

Cited by 3 publications

(1 citation statement)

References 21 publications

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“…In addition to the construction, suspension, drive and safety systems play an important role. In turn, the reliable operation of these systems has a direct impact on road safety [1][2][3][4][5][6][7][8][9][10]. On the other hand, the safety issues related to the transport of chemical products in road transport are presented in [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Material’s Strength Analysis of the Coupling Node of Axle of the Truck Trailer

et al. 2023

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Road transport plays an important role in the transport of goods and people and is important for the national economy. Damage usually excludes the means of transport from operation, which causes disruption of supply chains. One such damage is the failure of the suspension system of the vehicle or trailer, which usually occurs when the vehicle is heavily loaded. Such a defective system has been analyzed in this publication. Mathematical apparatus and finite element method (FEM) numerical simulations were used. A dangerous axle cross-section in terms of load was indicated and the maximum stresses in this area were calculated for two types of roads. On highways, the stress at the critical point was 199 MPa, and on uneven roads it increased to 304 MPa, which is comparable to the yield point. It was found that the second form of vibration may cause stresses in the damage area, but the excitation frequency would have to be quite high. The probability of such a load and failure event occurring is low under operating conditions.

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Section: Introductionmentioning

confidence: 99%

Material’s Strength Analysis of the Coupling Node of Axle of the Truck Trailer

et al. 2023

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Application of the Brake-Marker for Parameterisation of the Vehicle Braking Process

Lewiński,

Hryciów,

Luty

2024

Transport and Telecommunication Journal

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Braking efficiency is one of the most important elements of a car’s safety. The length of the braking distance may be influenced by many elements, including the braking system, tire condition, and suspension components, but also the state of the road surface at the braking point. Therefore, the correct determination of the braking distance measurement is one of the most essential elements in the road accident reconstruction process. This article presents a device – a marker for the beginning of the braking process called a Brake-Marker – developed at Łukasiewicz-PIMOT. The structure and operation, as well as the method of using this device in the process of testing vehicles under braking conditions are shown. This work presents the device and its research methodology, leading to the assessment of the possibility of using it to estimate the length of the braking distance at the site of a road incident. The authors of this study offer a thesis that the presented braking device can be used by experts and services to measure the braking distance in road conditions and for the process of road accident reconstruction.

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Analysis of the Impact of Invisible Road Icing on Selected Parameters of a Minibus Vehicle

Kurczyński

Zuska

2022

Sensors

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The measurement of acceleration during vehicle motion can be used to assess the driving styles and behaviours of drivers, to control vehicle traffic, to detect uncontrolled vehicle behaviour, and to prevent accidents. The measurement of acceleration during vehicle motion on an icy road can be used to warn the driver about changing conditions and the related hazards. This paper presents the results of testing the motion parameters of a Ford Transit adapted for passenger transport in critical traffic conditions. It can contribute to the improvement of road safety. Critical traffic conditions are deemed in the paper as sudden braking, rapid acceleration, and circular vehicle motion at maximum speed maintainable in the given conditions. The vehicle’s acceleration and speed were measured during the tests. The tests were carried out with a TAA linear acceleration sensor and a Correvit S-350 Aqua optoelectronic sensor. The same test runs were conducted on a dry surface, a wet (after rain) surface and a surface covered with a thin, invisible ice layer. The objective of the tests was to determine the impact of invisible road icing, the so-called black ice, on the tested vehicle’s braking, acceleration, and circular motion. It was demonstrated that a virtually invisible ice layer covering the road surface has a substantial impact on the tested vehicle’s motion parameters, thereby affecting traffic safety. It substantially extends the braking and acceleration distances and requires the driver to reduce the vehicle’s speed when performing circular motions. A clear wet surface, representing motion after rain, did not substantially affect the analysed parameters. The obtained results can be used in traffic simulations and to analyse the causes of accidents.

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Comparison of braking properties of selected vehicle with different methods

Cited by 3 publications

References 21 publications

Material’s Strength Analysis of the Coupling Node of Axle of the Truck Trailer

Material’s Strength Analysis of the Coupling Node of Axle of the Truck Trailer

Application of the Brake-Marker for Parameterisation of the Vehicle Braking Process

Analysis of the Impact of Invisible Road Icing on Selected Parameters of a Minibus Vehicle

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