Resumo

VIDAL MONTIEL; MACHADO, Analí; ARAUJO, Carlos  e  OCHOA, Álvaro. Determination of a vehicle´s fuel consumption through the simulation its dynamic behavior. Rev. Téc. Ing. Univ. Zulia [online]. 2002, vol.25, n.3, pp.158-165. ISSN 0254-0770.

Abstract     The objective of this work is to develop a model capable of simulation the dynamic behavior of a lightweight vehicle with standard transmission. The model will be used to obtain the vehicle´s fuel consumption when driven in urban and suburban areas using either gasoline or CNG. The model is based in the vehicle´s energy balance taking into accoun the environmental conditions, the engine´s load and the technical characteristics of the engine. In order to approximate different conditions and characteristics, the following methods were used: polynomial regression using the least square criteria, and the Gauss-Jordan method without partial pivoting. In addition, Simpson´s method of numerical integration was used to solve certain equations. From the results obtained, it can be concluded that the model propose offers a good estimate of the fuel consumption, and represents a good tool for the study of the vehicle´s behavior when using alternative fuels.

Palavras-chave : Fuel consumption; vehicles; driving schedule.