Acta Univ. Agric. Silvic. Mendelianae Brun. 2015, 63, 253-261
Published online 2015-03-14

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

Ronald Mauricio Martinod, German René Betancur, Leonel Francisco Castañeda

Mechanical Engineering Department, Engineering School, Universidad EAFIT, Cra. 49 N° 7 Sur-50 Medellín, Colombia

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.


The research has been supported by the project “Criterios de Evaluación del desempeño de vehículos automotores (Criteria for performance evaluation of motor vehicles)” financed by Universidad EAFIT.


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