Frank Kessler

Die neue Vierzylinder-Motorenbaureihe aus der BMW/PSA-Kooperation

Die BMW Group und PSA haben in einem Kooperationsprojekt unter Federfuhrung von BMW eine neue Baureihe kleiner Ottomotoren entwickelt. Die neuen Motoren sind fur beide Partner ein wesentlicher Schritt auf dem Weg zur Reduzierung der CO2-Emissionen. Erstmals in dieser Klasse kommen ein vollvariabler Ventiltrieb (Phasen- und Hubverstellung) sowie die Kombination von Direkteinspritzung mit Aufladung mittels Twin-Scroll-Lader zum Einsatz. Eine volumengeregelte Olpumpe, eine mechanisch abschaltbare Wasserpumpe und konsequente Reibleistungsoptimierung tragen wesentlich zu einem fulligen Drehmomentverlauf und einem guten spezifischem Verbrauch aller Varianten bei.

Der Hybridantrieb im BMW Active Hybrid 7

Neben dem BMW ActiveHybrid X6, der im Oktober 2009 als Vollhybrid seine Markteinfuhrung hatte, bringt BMW nun mit dem ActiveHybrid 7 einen Mild-Hybrid als weiteres Modell in Serie. Die BMW Group hat bereits 1,8 Millionen BMW Fahrzeuge mit EfficientDynamics-Technik an Kunden ausgeliefert. So befinden sich in vielen BMW Modellen verbrauchsreduzierende Masnahmen. Nur so war eine Reduktion des Flottenverbrauchs auf unter 160 g CO2/km bereits 2008 moglich.

The new four-cylinder engine series from the cooperation between BMW and PSA

With BMW providing leadership, the BMW Group and PSA have developed a new series of small petrol engines. For both partners, the new engines are a significant improvement in the task of reducing CO2 emissions. A fully variable valve drive and the combination of direct injection with turbocharging by means of a twin scroll turbocharger are being used for the first time in this vehicle class. A volume-controlled oil pump, a mechanical on-demand water pump and consistent frictional power optimisation make a considerable contribution towards achieving a generous torque characteristic and good specific fuel consumption in all variants.With BMW providing leadership, the BMW Group and PSA have developed a new series of small petrol engines. For both partners, the new engines are a significant improvement in the task of reducing CO2 emissions. A fully variable valve drive and the combination of direct injection with turbocharging by means of a twin scroll turbocharger are being used for the first time in this vehicle class. A volume-controlled oil pump, a mechanical on-demand water pump and consistent frictional power optimisation make a considerable contribution towards achieving a generous torque characteristic and good specific fuel consumption in all variants.

The hybrid drive system in the BMW active hybrid 7

In addition to the BMW ActiveHybrid X6, which was launched onto the market in October 2009 as a full hybrid, BMW is now unveiling the ActiveHybrid 7, a mild hybrid, as a further model in the series. BMW Group has already delivered 1.8 million BMW cars featuring EfficientDynamics technology to customers. As a result, a large number of BMW models have consumption-reducing measures built in. Only by this means was fleet consumption able to fall to below 160 g CO2 / km by as early as 2008.

Die neue Vierzylinder-Motorenbaureihe aus der Kooperation von BMW/PSA-Kooperation

With BMW providing leadership, the BMW Group and PSA have developed a new series of small petrol engines. For both partners, the new engines are a significant improvement in the task of reducing CO2 emissions. A fully variable valve drive and the combination of direct injection with turbocharging by means of a twin scroll turbocharger are being used for the first time in this vehicle class. A volume-controlled oil pump, a mechanical on-demand water pump and consistent frictional power optimisation make a considerable contribution towards achieving a generous torque characteristic and good specific fuel consumption in all variants.With BMW providing leadership, the BMW Group and PSA have developed a new series of small petrol engines. For both partners, the new engines are a significant improvement in the task of reducing CO2 emissions. A fully variable valve drive and the combination of direct injection with turbocharging by means of a twin scroll turbocharger are being used for the first time in this vehicle class. A volume-controlled oil pump, a mechanical on-demand water pump and consistent frictional power optimisation make a considerable contribution towards achieving a generous torque characteristic and good specific fuel consumption in all variants.

The new four-cylinder engine series from the cooperation between BMW and PSA@@@Die neue Vierzylinder-Motorenbaureihe aus der Kooperation von BMW/PSA-Kooperation

With BMW providing leadership, the BMW Group and PSA have developed a new series of small petrol engines. For both partners, the new engines are a significant improvement in the task of reducing CO2 emissions. A fully variable valve drive and the combination of direct injection with turbocharging by means of a twin scroll turbocharger are being used for the first time in this vehicle class. A volume-controlled oil pump, a mechanical on-demand water pump and consistent frictional power optimisation make a considerable contribution towards achieving a generous torque characteristic and good specific fuel consumption in all variants.With BMW providing leadership, the BMW Group and PSA have developed a new series of small petrol engines. For both partners, the new engines are a significant improvement in the task of reducing CO2 emissions. A fully variable valve drive and the combination of direct injection with turbocharging by means of a twin scroll turbocharger are being used for the first time in this vehicle class. A volume-controlled oil pump, a mechanical on-demand water pump and consistent frictional power optimisation make a considerable contribution towards achieving a generous torque characteristic and good specific fuel consumption in all variants.

Testautomatisierung und Antriebsstrangmodellierung an HIL-Steuergeräteprüfständen in der BMW Getriebeentwicklung

An neue Automatikgetriebe-Generationen werden standig wachsende Anforderungen gestellt. Schwerpunkte bilden dabei die Einfuhrung mechatronischer Systeme und der rapide ansteigende Vernetzungsgrad des Getriebes im Fahrzeug. Dies fuhrt zu einem immensen Funktionszuwachs in der elektronischen Getriebesteuerung. Dem steht die Forderung nach Verkurzung der Entwicklungszeit sowie die Senkung der Entwicklungskosten entgegen. In diesem Spannungsfeld zahlt der Einsatz neuer Entwicklungsmethoden und Simulationsverfahren mit zu den wichtigsten Voraussetzungen fur den zukunftigen Erfolg. Der vorliegende Artikel beschaftigt sich mit den Schwerpunktthemen Echtzeitmodellierung und Testautomatisierung, die in der Automatikgetriebeentwicklung der BMW Group erfolgreich eingesetzt werden.