Development of Control Strategy for BMW i3 Range extender Demands for more efficient vehicles with reduced fuel consumption and low emissions are growing rapidly in these days. Generally, they can create a competition among automakers in the worldwide. In order to satisfy these kind of factors manufacturing of hybrid electrical vehicles (HEV) can be regarded one of the solution. The main purpose of this work is to develop control strategy for Range Extender electrical vehicle (EV) model. Furthermore, finding optimum operating line of the engine in Range Extender EVs and in order to reach the purposive target 2014 BMW i3 Range Extender EV has been selected as a case study.