Comparative Study and Accommodation of Biodiesel in Diesel-Electric Hybrid Vehicles Coupled with Aftertreatment Systems

摘要: Biodiesel is a promising renewable alternative fuel, which can be used in diesel-electric hybrid vehicles to potentially bring one kind of clean vehicle on the road. However, fuel property variation cause impacts powertrain and aftertreatment systems. In this paper, biodiesel's influence post-injection effects studied. Experimental results are obtained demonstrate differences between diesel biodiesel, build up fuel-dependent maps engine torque, temperature, emissions. Utilizing those maps, an warm-up approach compatible with both fuels developed by strategically enabling double post injections. Finally, supervisory controller based model predictive control method designed optimize balance tradeoff economy tailpipe Simulations conducted for or without proposed strategy. The validation show that fuels, significantly reduce emissions successfully regulating catalyst temperature desired range sacrificing economy. And additional cost required order realize tradeoff.