With the additional power sources of electric motors, hybrid electric vehicles have flexibilities in managing and splitting their power to get the higher performances. In this paper, the engine/motor power split ratio algorithm is designed to develop ...
With the additional power sources of electric motors, hybrid electric vehicles have flexibilities in managing and splitting their power to get the higher performances. In this paper, the engine/motor power split ratio algorithm is designed to develop the supervisory control method for heavy-duty parallel HEVs. And we presented a method for producing PSR line through DP. With this algorithm, engine/motor power split line is expressed as 2-dimensional map and using the developed driving control method, driving simulation is performed to evaluate vehicle performance and fuel economy. According to the simulation results, heavy -duty hybrid vehicle is superior to conventional vehicle(BUS) in fuel economy.