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Study of Diesel Engine System for Hybrid Vehicles

Published August 30, 2011 by SAE International in United States
Study of Diesel Engine System for Hybrid Vehicles
Citation: Yamada, T., Haga, H., Matsumoto, I., and Tomoda, T., "Study of Diesel Engine System for Hybrid Vehicles," SAE Int. J. Alt. Power. 1(2):560-565, 2012,
Language: English


In this study, we combined a diesel engine with the Toyota Hybrid System (THS). Utilizing the functions of the THS, reducing engine friction, lowering the compression ratio, and adopting a low pressure loop exhaust gas recirculation system (LPL-EGR) were examined to achieve both low fuel consumption and low nitrogen oxides (NOx) emissions over a wide operating range. After applying this system to a test vehicle it was verified that the fuel economy greatly surpassed that of a conventional diesel engine vehicle and that NOx emissions could be reduced below the value specified in the Euro 6 regulations without DeNOx catalysts.