Modeling and Simulation of a Regenerative Braking System for Pure Electric Vehicles Using MATLAB

Abstract

The birth of electric vehicles has solved the problems of excessive energy consumption and environmental pollution caused by the use of traditional cars. The implementation of policies has led to an increase in the number of individuals who have opted to purchase pure electric vehicles, but these types of cars are limited by battery capacity, and currently, most of their range is not high. To address the issue of insufficient endurance that affects the development of electric vehicles, this study proposes a modeling and simulation of a pure electric vehicle braking system based on MATLAB. This model first matches the power parameters of the pure electric vehicle braking system, and then establishes a simulation model for the wheels, driving motors, and battery energy. The matching simulation results are analyzed using MATLAB software. The results showed that the set matching parameters were compared with the matched simulation results, and the set targets were basically consistent with the simulation results. The power battery has shown good discharge performance, with most efficiency exceeding 90%. The battery state of charge value of the research model was higher than that of non-braking energy recovery and the optimal braking sensation strategy. This model improves the discharge efficiency of electric vehicle power batteries and optimizes the endurance of vehicles.