Žilinská univerzita v Žiline

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Author: search.filters.author.Jánošíková, IvanaSubject: search.filters.subject.braking distance

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    Studie jízdních vlastností dopravního automobilu a požárního přívěsného vozíku
    (University of Žilina, 2023) Lasák, Jiří; Jánošík, Ladislav; Jánošíková, Ivana
    The paper briefly summarises selected driving characteristics of a set of transport vehicles on a Mercedes-Benz Sprinter chassis with the fire designation DA-L2Z and a braked fire trailer on a chassis from VEZEKO Ltd. with a total weight of up to 3.5 tonnes. The driving dynamics testing was focused on a crisis braking in a straight direction and driving in a circle at a speed approaching the safe limit for overturning the vehicle and/or the truck. These two tasks belong to the basic driving skills that a fire truck driver must be able to safely manage in a crisis on the road.
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    Vyhodnocení součinitele adheze vybraných pneumatik pro zásahový požární automobil
    (Žilinská univerzita v Žiline, 2022) Jánošík, Ladislav; Jánošíková, Ivana; Poledňák, Pavel; Šudrychová, Izabela
    The paper summarizes the results of testing and evaluation of the suitability of three selected types of tires for emergency fire trucks at units of the Fire and Rescue Service of the Czech Republic. The testing focused on determining the coefficient of adhesion in the longitudinal and lateral directions of the vehicle. In the longitudinal direction, data were obtained during braking manoeuvres. The actual braking distances and stopping times were measured. From these data, a braking deceleration and a theoretical coefficient of adhesion were calculated by a company's software. To determine the operating acceleration values in the lateral direction, measurements were made on a circular track with three given internal radii. The results of the measurements were used as one of the bases for determining a methodical procedure for performing tests of the functional tire properties for emergency fire trucks, especially water tenders, used by the Fire and Rescue Service of the Czech Republic.