¿ The application of a simple design of fault tolerant control (FTC) methodology to the propulsion of electric vehicle will be study. The existing approaches to fault detection and isolation and fault tolerant control in a general framework of an active fault tolerant control will be presented. Failure mode and effects analysis will be carried out. ¿ This study will focus on the design of a battery energy storage system to reduce the charging time and to maximize battery life. The interaction between the electric vehicle and the power grid will be deeply study especially with the renewable energy sources.