Influencing Factors in Low Speed Regenerative Braking Performance of Electric Vehicles

This paper discusses different factors that influence the regenerative braking capability of Electric Vehicles (EVs) at low speeds. A Low Speed Cutoff Point (LSCP) below which the regenerative braking process is no longer effective is considered as a determining factor to evaluate regenerative braking performance under various conditions. Different scenarios are studied and the effect of each scenario on the displacement of LSCP is analyzed using an EV traction motor simulation model in MATLAB/SIMULINK. The results show that the LSCP deviates under different operating conditions and should not be considered constant under various circumstances when designing a brake controller.