2 presents the building blocks of a DC motor current control system in closed loop. The option of operate with low voltage motors is related with safety concerns in counterpart this motors needed a high current value (≈200A). The vehicle presented in this paper is a prototype of a pure battery vehicle, which has the advantage of being a ZEV (zero emissions vehicle). Introduction Negative environmental impact of the transportation sector imposes searching for alternative solutions to actual road vehicles. Key words: Sliding mode control, electric vehicle, DC-DC converter. This paper will focus on strategies and construction problems for the power converter, its protection and control of the power train. The main objective of this paper is to describe the solutions encountered during the development of a power converter and its control for an electric traction vehicle. Electric Vehicle - Design and Implementation Strategies for the Power Train Rui Santos (1), Fernando Pais (1), Carlos Ferreira (1) (2), Hugo Ribeiro (1) (2), Pedro Matos (1) (1) Escola Superior de Tecnologia do Instituto Politécnico de Tomar – Quinta do Contador – Estrada da Serra, 2300 Tomar, Portugal, phone +351249328150, fax: +351249328187, e-mail: (2) Instituto de Telecomunicações, Lisboa Portugal, e-mail: Abstract.
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