This paper presents an Energy Management Strategy submitted to the IEEE VTS 2021 Motor Vehicles Challenge. The proposed solution aims to maximize the final value of the battery's state of charge by optimizing the power supplied to the front and rear electrical drives; while respecting constraints of the electric drives torque and the temperature of the battery cell for any driving cycle. The paper proposes a methodology to maximize the efficiency of the electric vehicle power train based on the motor efficiency maps. The paper presents the results for the scoring driving cycle provided by the competition organizers.