Impact of Advanced Engine and Powertrain Technologies on Engine Operation and Fuel Consumption for Future Vehicles 2015-01-0978
Near-term advances in spark ignition (SI) engine technology (e.g., variable value lift [VVL], gasoline direct injection [GDI], cylinder deactivation, turbo downsizing) for passenger vehicles hold promise of delivering significant fuel savings for vehicles of the immediate future. Similarly, trends in transmissions indicate higher (8-speed, 9-speed) gear numbers, higher spans, and a focus on downspeeding to improve engine efficiency. Dual-clutch transmissions, which exhibit higher efficiency in lower gears, than the traditional automatics, and are being introduced in the light-duty vehicle segment worldwide. Another development requiring low investment and delivering immediate benefits has been the adaptation of start-stop (micro hybrids or idle engine stop technology) technology in vehicles today. This paper evaluates the impact of each of these technologies (engines, transmissions, start-stop) on the fuel economy and performance of a compact car in the year 2020 through the use of vehicle system simulation.
Citation: Lemazurier, L., Shidore, N., Kim, N., Moawad, A. et al., "Impact of Advanced Engine and Powertrain Technologies on Engine Operation and Fuel Consumption for Future Vehicles," SAE Technical Paper 2015-01-0978, 2015, https://doi.org/10.4271/2015-01-0978. Download Citation
Lori Lemazurier, Neeraj Shidore, Namdoo Kim, Ayman Moawad, Aymeric Rousseau, Phillip Bonkoski, Jeremy Delhom
Ecole des Mines de Nantes, Argonne National Laboratory, IAV Automotive Engineering Inc, Université de Technologie de Compiègne