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Silniki o zapłonie samoczynnym w perspektywie rynku globalnego

Cipolla G.

Silniki Spalinowe

2007

R. 46, nr 2

33-37

W artykule przedstawiono przewidywania na temat rozwoju systemów napędowych pojazdów. W opinii autora, w perspektywie krótko do średniookresowej, silniki spalinowe stanowić będą nadal główną cześć rynku, a udział silników o zapłonie samoczynnym i iskrowym zależeć będzie od uwarunkowań lokalnych. W perspektywie średnio do długookresowej, napędy hybrydowe i ogniwa paliwowe stanowić będą realną alternatywę dla silników konwencjonalnych. Za bardzo korzystne rozwiązanie napędu uznano napęd hybrydowy z silnikiem o zapłonie samoczynnym, z uwagi na potencjał tego silnika w zakresie dalszego zmniejszenia zużycia paliwa oraz poprawy przyjemności z jazdy.

The article describes some predictions with regard to developing trends of automotive propulsion systems. According to the author’s opinion, Diesel engines will share with the gasoline one the leadership of the market in the short-to-middle timeframe, with shares depending mainly from regional contingencies. In the middle-to-long timeframe, the hybrid powertrain and fuel cells will became a real alternative option to conventional engine. However, Diesel hybrid powertrain could also became a very interesting opportunity, because the Diesel engine features will further improve the fuel consumption and the fun-to-drive features of hybrid systems.

Diesel perspective in global market vision

Cipolla G.

Silniki Spalinowe

2007

R. 46, nr SC1

4-9

The evolution of automotive propulsion system will be mainly driven by challenging and conflicting requirements of performance, environment safeguard, energy sourcing and quality. Being the technology development strongly dependent on several industrial constraints, a "steady evolution" is likely to be a more sustainable approach than a "breakthrough revolution". In such perspective the future scenario of automotive propulsion systems will be achieved, in parallel, by further enhancement of "conventional" reciprocating engines, by "best" hybrid configuration development and, finally, by fuel cells evolution, in a short-middle-long timeframe respectively. Market share of both "conventional" ICE concepts (i.e. Diesel & Gasoline) will strongly depend on external factors, like regional requirements or contingency constraints. In the case of Diesel engine, further development will be mainly focused on improving PM & NOx emissions and NVH behavior, still maintaining its remarkable breakthrough of fuel consumption and on low-end torque allowing a fun-to-drive feature. Also for hybrid powertrains Diesel engine could become a very interesting opportunity, because of its potential of further improving the fuel consumption and the fun-todrive features of hybrid systems. Another very challenging issue, for automotive OEM's, is the globalization requirement, heavily impacting their product portfolio, because of different local market scenarios: GM adopted a "Global Strategy - Local Execution" approach, both for Base engine development and in-vehicle integration.