Simulink-Based Simulation of Electric Bicycle Dynamics and Regenerative Braking for Battery State of Charge Assessment

In this paper, a dynamic model for an e-bike is presented and its performance is evaluated. The model includes the main components constituting the vehicle electric drive such as the electric motor, the inverter, the DC-DC converter for speed control and regenerative braking, and the battery pack. The implementation is carried out in MATLAB-Simulink environment with the purpose of analyzing the power flows on the vehicle during target driving profiles. Unlike other models available in the literature, the developed model can represent a valuable tool to aid the designer in selecting and comparing different structural and component solutions. Knowing the efficiency of each component is possible to evaluate the global efficiency of the system in various operating conditions.