Abstract
A conventional vehicle with an internal combustion engine (ICE) output power required by driver’s demand simultaneously, but a vehicle with an electric motor and a battery does not required to run the ICE as driver’s demand. That means electric generation timing can be shifted and be optimized for consumed energy efficiency. Time domain simulations or analysis are not suitable for optimized electric generation strategies design. Optimal electric generation slot allocation strategy based on a quasi – static vehicle model for emission test driving cycles is proposed. Then, the strategy is applied a driving cycle, NEDC, with a dynamic vehicle model to compare with the conventional maintain SOC constant strategy. The proposed strategy improves the NEDC fuel economy by 14.2%.
KEYWORDS – electrified vehicle, energy management, emission test cycle, energy efficiency, electric generation slot allocation