Experimental Validation of the Brush Tire Model

Svendenius, Jacob; Gäfvert, Magnus; Bruzelius, Fredrik; Hultén, Johan

doi:10.2346/1.3130985

Cited by 41 publications

(35 citation statements)

References 3 publications

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“…This model has been proven to capture many features of the force interaction using a small number of parameters with physical interpretation. [18,19] The model, extended with a sliding friction coefficient, is given by…”

Section: Vehicle Dynamics Modelmentioning

confidence: 99%

A theoretical justification of the sine with dwell manoeuvre

Bruzelius

2015

Vehicle System Dynamics

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The sine with dwell (SWD) manoeuvre has received much attention within the context of vehicle stability testing. This manoeuvre is used in a test developed by the NHTSA, designed to certificate electronic stability control systems in light vehicles. The test is used in legislations as well as in consumer tests all over the globe. The SWD manoeuvre was designed using test vehicles on a test track and experimentally validated. The paper at hand uses optimal control theory to theoretically justify the use of the SWD manoeuvre to produce a severe lateral motion and over-steering based on steering input. It is shown that a manoeuvre similar to the SWD manoeuvre can be obtained from an optimal control problem using simple vehicle dynamics models. The optimal control method is further used to analyse the manoeuvre's robustness with respect to vehicle dimensions and tyre properties. It is shown that the manoeuvre is robust in dimensions, which theoretically motivates its application for various sizes of vehicles.

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Section: Vehicle Dynamics Modelmentioning

confidence: 99%

A theoretical justification of the sine with dwell manoeuvre

Bruzelius

2015

Vehicle System Dynamics

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“…As it is shown in Fig. 14, the contact patch area is partitioned into two regions [123]: adhesion and sliding. In the first region, the bristles transfer the force by mechanical adhesion and in the second region the slide of the bristles on the road results in friction force; the vertical pressure distribution is assumed to be parabolic.…”

Section: Brush Tire Modelmentioning

confidence: 99%

“…For the pure side slip problem, the formulation of brush tire model for low slip angle values is as follows [124]: Fig. 14 The schematic of adhesion and sliding regions in the contact patch [123]. …”

Section: Brush Tire Modelmentioning

confidence: 99%

A technical survey on tire-road friction estimation

2017

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Lack of driver's knowledge about the abrupt changes in pavement's friction and poor performance of the vehicle's stability, traction, and ABS controllers on the low friction surfaces are the most important factors affecting car crashes. Due to its direct relation to vehicle stability, accurate estimation of tire-road friction is of interest to all vehicle and tire companies. Many studies have been conducted in this field and researchers have used different tools and have proposed different algorithms. This literature survey introduces different approaches, which have been widely used to estimate the friction or other related parameters, and covers the recent literature that contains these methodologies. The emphasize of this review paper is on the algorithms and studies, which are more popular and have been repeated several times. The focus has been divided into two main groups: experiment-based and model-based approaches. Each of these main groups has several sub-categories, which are explained in the next few sections. Several summary tables are provided in which the overall feature of each approach is reviewed that gives the reader the general picture of different algorithms, which are widely used in friction estimation studies.

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“…The main benefit of studded tyres over unstudded ones is their stronger ice grip at temperatures close to 0°C [13], which helps drivers control their vehicles on slippery road surfaces. Most researchers appear to agree that studded tyres provide some safety benefit, although the size of this effect is frequently assessed as limited [4,[6][7][8][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Effects of winter Tyre type on roughness and polishing of road surfaces covered with ice and compact snow

Malmivuo¹,

Luoma

2016

Eur. Transp. Res. Rev.

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Purpose This field study was designed to compare to what degree various proportions of studded and unstudded winter tyres affect the roughness and polishing of road surfaces covered with ice and compact snow. Methods Test cars equipped with studded and unstudded winter tyres drove around a test track according to the designed procedure. The main straight section of the track had five lanes, each with a different proportion of cars with studded tyres: 100%, 75%, 50%, 25% and 0% of the respective lane traffic. The remainder were cars with unstudded winter tyres. Each lane included sections of ice and compact snow with subsections for constant speed, braking and acceleration. The lanes were driven 642 times. The ambient temperature was approximately 0°C during the test. Results The overall results showed that there was no substantial difference in friction of the road surface between lanes having 100%, 75% or 50% of cars with studded tyres. However, the friction was much poorer in lanes having fewer cars with studded tyres. Conclusions These results suggest that traffic with 50% of cars having studded tyres results in adequate friction of icy road surfaces in the test conditions.

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Experimental Validation of the Brush Tire Model

Cited by 41 publications

References 3 publications

A theoretical justification of the sine with dwell manoeuvre

A theoretical justification of the sine with dwell manoeuvre

A technical survey on tire-road friction estimation

Effects of winter Tyre type on roughness and polishing of road surfaces covered with ice and compact snow

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