Elaboración de un plan de mantenimiento preventivo para el tren de potencia de buses eléctricos de transporte público.

Abstract

This work proposes a preventive maintenance plan for an electric public transport buses. Electric buses are going to replace the Internal combustion motor buses in the next years, due to energy efficiency Laws. Preventive maintenance of an electric bus has a very wide field of application, so this research focuses specifically on the power train. Before carrying out this maintenance plan, components that make up the power train of an electric bus are studied and once their behavior is known, possible failures of these elements are detected. A fault tree was used to identify the possible problems that each of these elements may experience. Then the faults are codified for a better recognition. Finally, activities are proposed to reduce de failure of an electric bus. There are not statistics of the power train failures at Ecuador; so, this work is based on scientific publications, documentation, and experiences of other countries that already have this vehicle type. This information is used to relate the Ecuador reality, then maintenance activities are proposed and a plan is carried out for preventive maintenance, which will consist of specific activities to be carried out in each of the components of the power train.