Jörg Seibel

Optimierte Auslegung von Ottomotoren in Hybrid-Antriebssträngen

Aufgrund der hohen Komplexitat hybrider Antriebsstrange ist eine Vielzahl an Kombinationen von Verbrennungsmotor, elektrischer Maschine und Getriebe denkbar. Am Lehrstuhl fur Verbrennungskraftmaschinen Aachen (VKA) wurde eine Kombination aus Simulation und numerischen Optimierungsverfahren mit Design of Experiments (DoE) benutzt, um Verbrennungsmotor, Antriebsstrang und Betriebsstrategie fur Fahrzeuge mit Hybridantrieb zu optimieren. Eine parametrisierte Beschreibung erlaubt die Variation der wichtigsten Parameter des Hybridantriebsstrangs. Neben der Definition der optimalen Konfigurationen des Verbrennungsmotors, des Antriebsstrangs und der Betriebsstrategie bietet dieser DoE-Ansatz die Moglichkeit, den Kraftstoffverbrauch fur samtliche Modifikationen der Hybridantrieb-Parameter vorherzubestimmen. Diese Arbeiten wurden im Auftrag der FVV durchgefuhrt.

Reduzierung des Kraftstoffverbrauchs über Reibungsoptimierung am Vierzylinder-Ottomotor

Due to the high complexity of hybrid powertrains, a lot of combinations regarding internal combustion engine, electric motor and transmission can be combined. At the Lehrstuhl fur Verbrennungskraftmaschinen Aachen (VKA), a combination of simulation and numerical optimization with Design of Experiments (DoE) was used to optimize combustion engine, powertrain configuration and operation strategy for hybrid powertrain vehicles. A parametric approach allows the variation of the main hybrid powertrain parameters. Aside of the definition of the optimum configurations for engine, powertrain and operation strategy, the DoE approach offers the possibility to predict the fuel consumption for any modifications of the hybrid powertrains parameters. This research work was sponsored by FVV.Due to the high complexity of hybrid powertrains, a lot of combinations regarding internal combustion engine, electric motor and transmission can be combined. At the Lehrstuhl fur Verbrennungskraftmaschinen Aachen (VKA), a combination of simulation and numerical optimization with Design of Experiments (DoE) was used to optimize combustion engine, powertrain configuration and operation strategy for hybrid powertrain vehicles. A parametric approach allows the variation of the main hybrid powertrain parameters. Aside of the definition of the optimum configurations for engine, powertrain and operation strategy, the DoE approach offers the possibility to predict the fuel consumption for any modifications of the hybrid powertrains parameters. This research work was sponsored by FVV.

Fuel consumption reduction through friction optimisation of a four-cylinder gasoline engine

Due to the high complexity of hybrid powertrains, a lot of combinations regarding internal combustion engine, electric motor and transmission can be combined. At the Lehrstuhl fur Verbrennungskraftmaschinen Aachen (VKA), a combination of simulation and numerical optimization with Design of Experiments (DoE) was used to optimize combustion engine, powertrain configuration and operation strategy for hybrid powertrain vehicles. A parametric approach allows the variation of the main hybrid powertrain parameters. Aside of the definition of the optimum configurations for engine, powertrain and operation strategy, the DoE approach offers the possibility to predict the fuel consumption for any modifications of the hybrid powertrains parameters. This research work was sponsored by FVV.Due to the high complexity of hybrid powertrains, a lot of combinations regarding internal combustion engine, electric motor and transmission can be combined. At the Lehrstuhl fur Verbrennungskraftmaschinen Aachen (VKA), a combination of simulation and numerical optimization with Design of Experiments (DoE) was used to optimize combustion engine, powertrain configuration and operation strategy for hybrid powertrain vehicles. A parametric approach allows the variation of the main hybrid powertrain parameters. Aside of the definition of the optimum configurations for engine, powertrain and operation strategy, the DoE approach offers the possibility to predict the fuel consumption for any modifications of the hybrid powertrains parameters. This research work was sponsored by FVV.