Analysis of Driving Safety Criteria Based on National Regulations for the Suspension Systems of NGVs

Ronald Mauricio Martinod, German René Betancur and Leonel Francisco Castañeda
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Ronald Mauricio Martinod: Mechanical Engineering Department, Engineering School, Universidad EAFIT, Cra. 49 N° 7 Sur-50 Medellín, Colombia
German René Betancur: Mechanical Engineering Department, Engineering School, Universidad EAFIT, Cra. 49 N° 7 Sur-50 Medellín, Colombia
Leonel Francisco Castañeda: Mechanical Engineering Department, Engineering School, Universidad EAFIT, Cra. 49 N° 7 Sur-50 Medellín, Colombia

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2015, vol. 63, issue 1, 253-261

Abstract: The work analyses the technical evaluation process of the suspension system for vehicles that have been adapted to natural-gas-fuelled engines from power light-duty gasoline, and diesel vehicles; this evaluation is done through a mechanical review established by national regulations. The development of this analysis is focused on establishing the relationship between the natural-gas-fuelled equipment and the dynamic effect caused by the extra-weight, according to two measuring criteria that determine the safety and driving comfort, these are: (i) tire-road adhesion index; and (ii) tire excitation phase angle. The paper also proposes new elements that can be added to the current national regulations and that are currently applied to assess the suspension of natural gas vehicles, recorded using a test standard benchmark for the evaluation of the suspension.

Keywords: adhesion index; EuSAMA; phase angle; natural gas vehicle; suspension system; viscous damping ratio (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:mup:actaun:actaun_2015063010253

DOI: 10.11118/actaun201563010253

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