ABSTRACT
In this chapter, a new design philosophy for a parallel hybrid electric vehicle (HEV) is proposed that uses a full-size engine to guarantee the vehicle performance, at least as good as the conventional vehicle, and hybridizes with an electrical drive in parallel to improve the fuel economy and performance beyond the conventional vehicle. For a full-size engine vehicle, any hybridization increases the cost and the weight of the vehicle. The additional cost erodes the benefits for the vehicle owner, while the additional weight of the electric motor and battery pack has negative impacts on the vehicle's fuel economy. We implemented a dynamic programming algorithm for the sensitivity analysis of the fuel consumption to increasing hybridized electrical drive power, to determine the optimal hybridization ratio for the full-size engine HEV.
