A comparison on fuel economy and emissions for conventional hybrid electric vehicles and the UTS plug-in hybrid electric vehicle

This paper covers a comparative study on fuel economy and emissions of a conventional hybrid electric vehicle (HEV) and the UTS plug-in HEV (PHEV). The interaction between the components such as energy storage system, electric machine, power control unit and internal combustion engine of the UTS PHEV are complex in order to optimize the fuel economy and emissions brought by the vehicle. In this work, the model of the UTS PHEV is derived and implemented numerically in the MATLAB/SIMULINK environment to study its operational performance in various drive cycles measured under life conditions. The simulation results in terms of fuel economy and emissions of the series and parallel HEV from the Advanced Vehicle Simulator and UTS PHEV are compared and the pros and cons discussed.