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Ingenius. Revista de Ciencia y Tecnología

On-line version ISSN 1390-860XPrint version ISSN 1390-650X


VALLADOLID, Juan; CALLE, Mauricio  and  GUIRACOCHA, Ángel. Analysis of regenerative braking efficiency in an electric vehicle through experimental tests. Ingenius [online]. 2023, n.29, pp.24-31. ISSN 1390-860X.

This paper presents a regenerative braking analysis of efficiency in real driving conditions and different road geographies. Factors affecting or benefiting energy recovery were indentified, these are: the weight of the vehicle, torque, speed, inclination or road, and braking time; however, the sport and Eco driving modes were not considered because the same driving pace was chosen for the different routes. These results are intended to collaborate with real energy regeneration data and help investigators, academics, and automotive engineering, improving this system´s efficiency. In the driving process, the state of charge (SOC), speed, torques, and road geography effect the efficiency of regenerative breaking, as driving a vehicle on a road with irregular geography exposes it to aggressive physical factors, which considerably reduces its energy autonomy. The main aspects of recovery and regenerative braking efficiency were determined through quantitative data analysis resulting in experimental surfaces and curves, which present the performance of current and deceleration during vehicle braking. Thus, it is shown that the energy recovery during braking is 78% considering the low autonomy of the electric vehicle.

Keywords : Brake pedal; electric vehicle; energy recovery; regenerative braking.

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