A Control Strategy for Optimization of Power Losses in Series Hybrid Electric Vehicles Considering the Extension of Battery Life

Series hybrid electric vehicles (SHEVs) use an electric generator together with battery pack to feed the vehicle traction system. Control system of a hybrid vehicle has a fundamental role in its drivability and performance. Therefore, satisfying the drivers demand while optimizing the power-train efficiency is the key goal in designing the control strategy. An optimization based control strategy for SHEVs has been proposed in order to optimize power-train efficiency while taking the minimization of the losses caused by reducing the battery life into account. Simulation results verify the proposed method.