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.
Impact of Advanced Engine and Powertrain Technologies on Engine Operation and Fuel Consumption for Future Vehicles
Sae Technical Papers
SAE 2015 World Congress & Exhibition ; 2015
2015-04-14
Aufsatz (Konferenz)
Englisch
British Library Conference Proceedings | 2015
|H2 Engine Hybrid Powertrain for Future Light Commercial Vehicles
Springer Verlag | 2024
|Advanced powertrain and engine technology
TIBKAT | 2001
|Powertrain choices for Emerging Engine Technologies
British Library Conference Proceedings | 2020
|