Falko Rudolph

Das neue Doppelkupplungsgetriebe von Volkswagen

Die Vorteile von Handschaltgetrieben und Stufenautomaten in einem Getriebe zu vereinen, war das Ziel bei der Entwicklung des neuen Doppelkupplungsgetriebes von Volkswagen. Aufbauend auf dem Prinzip der Doppelkupplung, das vor allem aus dem Motorsport bekannt ist, entstand in den vergangenen sechs Jahren das sogenannte Direktschaltgetriebe (DSG), das aufgrund der innovativen Konzeption mit zwei nasslaufenden Lamellenkupplungen und verschiedenen automatischen Schaltprogrammen den Anspruchen von Automatikfahrern ebenso wie den Handschaltgetriebe-Fahrern gerecht wird.

Volkswagen’s new 2.0 l TDI engine for the most stringent emission standards — Part 2

Beginning mid-2008, a vehicle will be sold on the US market that complies with the exhaust emission standards Tier 2 Bin5: the VW Jetta. This objective was achieved by applying modifications to the Euro 5 Common-Rail engine already available in Europe for the VW Tiguan and the Audi A4 and by introducing the NOx exhaust gas after treatment system. The previous article provided information on the optimisation of the injection system and on the implementation of low-pressure exhaust gas recirculation and cylinder pressure control. These measures have a decisive impact on the improvement of the raw emissions, on the reduction of the emission range and on the reliability of the engine’s operating procedure. The following article discusses the development of the NOx exhaust gas aftertreatment system and the new operating-mode control for overall system management and also describes the OBD functions.

Der neue 2,0-l-TDI-Motor von Volkswagen für niedrigste Abgasgrenzwerte — Teil 1

Der bereits in Europa in den Fahrzeugen VW Tiguan und Audi A4 eingefuhrte Common-Rail-Motor wird nach Weiterentwicklung im VW Jetta ab Mitte 2008 in den USA die weltweit strengsten Abgasgrenzwerte der Emissionsgesetzgebung Tier 2 Bin5 erfullen. Neben innermotorischen Masnahmen durch Optimierung des Einspritzsystems, der Realisierung eines Niederdruck-Abgasruckfuhrungs-Systems und einer neuartigen Zylinderdruckregelung ist als technische Besonderheit die Umsetzung eines NOx-Abgasnachbehandlungssystems zu nennen. Diese neuen Motorkomponenten erfordern die Entwicklung neuartiger Regelalgorithmen und die intensive Abstimmung der Parameter fur das vollig neue Brennverfahren.

Der neue 2,0-l-4V-TDI-Motor mit Common-Rail-Einspritzung

Als Reaktion auf die Herausforderungen des kommenden Jahrzehnts mit verscharften Emissionsgrenzwerten, den Belangen des Fusgangerschutzes und des steigenden Komfortanspruchs bei der Innen- und Ausenakustik wurde bei Volkswagen eine neue Generation von Dieselmotoren entwickelt. Der hier vorgestellte 2,0-l-4V-TDI-Motor mit Common-Rail-Einspritzung, der erstmals im neuen Volkswagen Tiguan zum Einsatz kommt, markiert den Auftakt einer Reihe von dynamischen und effizienten Dieselmotoren. Durch die Kombination des 2,0-l-TDI-Motors mit der Common-Rail-Technologie ist ein Motor entstanden, der schon heute die Grenzwerte der Abgasnorm Euro 5 unterschreitet und sich, neben Fahrspas und Sparsamkeit, besonders durch Laufruhe und Komfort auszeichnet.

The new dual clutch gearbox from Volkswagen

Unifying the advantages of the manual gearbox and the stepped automatic gearbox was the development target for the new dual clutch gearbox of Volkswagen. Based on the principle of the dual clutch which is familiar, above all, from the field of motor sport, the past six years have seen the development of the so-called Direct Shift Gearbox (DSG) from Volkswagen, which due to its innovative concept with two wet multi-plate clutches and various automatic shift modes, meets the standards of drivers of vehicles equipped with automatic gearboxes and also of drivers of vehicles with manual gearboxes.

The new 2.0-l-4V-TDI engine with common rail

As a reaction to the challenges of the coming decade in the form of stricter emission limit values, the concerns of pedestrian protection and the increasing demand for comfort with regard to internal and external acoustics, Volkswagen has developed a new generation of diesel engines. The 2.0-l-4V-TDI engine with common rail injection presented here and used for the first time in the new Volkswagen Tiguan, represents the start of a series of dynamic and efficient diesel engines. The combination of the successful 2.0-l-TDI engine with the common rail technology has resulted in an engine that already complies with the limit values of the Euro 5 emission standard and that is characterised by its smooth running and comfort in addition to the driving pleasure and economic efficiency that it provides.As a reaction to the challenges of the coming decade in the form of stricter emission limit values, the concerns of pedestrian protection and the increasing demand for comfort with regard to internal and external acoustics, Volkswagen has developed a new generation of diesel engines. The 2.0-l-4V-TDI engine with common rail injection presented here and used for the first time in the new Volkswagen Tiguan, represents the start of a series of dynamic and efficient diesel engines. The combination of the successful 2.0-l-TDI engine with the common rail technology has resulted in an engine that already complies with the limit values of the Euro 5 emission standard and that is characterised by its smooth running and comfort in addition to the driving pleasure and economic efficiency that it provides.

The Volkswagen combined Heat and Power Unit - Automotive Know-How for Intelligent Energy Production

As the climate change can be especially traced back to CO2-emissions, it is a worldwide aim to reduce those CO2- emissions. Therefore, it is necessary to make use of regenerative energy sources and highly efficient technologies. Besides the reduction of emissions within automotive mobility significant attention is paid to heat- and electricity generation in Germany. The reason for this is that more than half of the consumed energy in Germany is used for heat generation. Besides, large parts of the heating plants are not state-of-the-art. This shows that there is a considerable savings potential in this field. In 2007, German government decided that the percentage of combined heat and power (CHP) in electricity generation is supposed to be increased to 25 % until the year 2020. In order to reach this goal, an annual additional construction of CHP-units with a power output of 700 MW becomes necessary. A contribution to this aim can be achieved by small CHP-units, so-called combined heat and power plants. A combined heat and power plant is a unit in which a combustion engine generates electricity by means of a generator in a highly efficient manner. At the same time, the developing waste heat of the engine is used for heat generation. The joint electricity- and heat generation leads to an overall efficiency which is considerably superior to any conventional heatand electricity generation. In direct comparison, the primary energy input is up to 40% lower. Compared to a coal-fired power plant the CO2-emissions are even 60% lower in a CHP powered with natural gas. Efficient energy conversion and intelligent control technology are only exemplary requirements, which are important issues in the CHP as well as in the automotive industry and which are mastered by Volkswagen. The Volkswagen combined heat and power unit “EcoBlue 2.0” stands out for a modular and compact design, and shows many similarities to the front part of a vehicle. Power unit, generator, engine control, heat exchanger and exhaust system are only a few examples for those similarities. Additional measures, such as modified valve springs, an optimised camshaft as well as a supplementary oil tank enable a long life-time in stationary operation and generate a product which stands out in competition. Sales as well as the subsequent control of the equipment are effected by the LichtBlick AG. For this purpose, the LichtBlick AG has developed the so-called fluctuating power concept, which implies a control center which can turn the combined heat and power plants on and off at the customer by remote control. The aim is the network connection of thousands of CHPs to a virtual power plant, which is able to close the gap between power requirement and -capacity within a short time and thus is a major advantage compared to the inert large power stations. The combination of the Volkswagen “EcoBlue 2.0” and the innovative fluctuating power concept of the LichtBlick AG is a totally new business model, which enables the introduction of high quantities on the energy market and thus strongly contributes to the reduction of CO2-emissions.

Der neue 2,0-l-4V-TDI mit Common-Rail

As a reaction to the challenges of the coming decade in the form of stricter emission limit values, the concerns of pedestrian protection and the increasing demand for comfort with regard to internal and external acoustics, Volkswagen has developed a new generation of diesel engines. The 2.0-l-4V-TDI engine with common rail injection presented here and used for the first time in the new Volkswagen Tiguan, represents the start of a series of dynamic and efficient diesel engines. The combination of the successful 2.0-l-TDI engine with the common rail technology has resulted in an engine that already complies with the limit values of the Euro 5 emission standard and that is characterised by its smooth running and comfort in addition to the driving pleasure and economic efficiency that it provides.As a reaction to the challenges of the coming decade in the form of stricter emission limit values, the concerns of pedestrian protection and the increasing demand for comfort with regard to internal and external acoustics, Volkswagen has developed a new generation of diesel engines. The 2.0-l-4V-TDI engine with common rail injection presented here and used for the first time in the new Volkswagen Tiguan, represents the start of a series of dynamic and efficient diesel engines. The combination of the successful 2.0-l-TDI engine with the common rail technology has resulted in an engine that already complies with the limit values of the Euro 5 emission standard and that is characterised by its smooth running and comfort in addition to the driving pleasure and economic efficiency that it provides.

The new 2.0-l-4V-TDI engine with common rail@@@Der neue 2,0-l-4V-TDI mit Common-Rail: Modern diesel technology from Volkswagen@@@Moderne Dieseltechnologie von Volkswagen

As a reaction to the challenges of the coming decade in the form of stricter emission limit values, the concerns of pedestrian protection and the increasing demand for comfort with regard to internal and external acoustics, Volkswagen has developed a new generation of diesel engines. The 2.0-l-4V-TDI engine with common rail injection presented here and used for the first time in the new Volkswagen Tiguan, represents the start of a series of dynamic and efficient diesel engines. The combination of the successful 2.0-l-TDI engine with the common rail technology has resulted in an engine that already complies with the limit values of the Euro 5 emission standard and that is characterised by its smooth running and comfort in addition to the driving pleasure and economic efficiency that it provides.As a reaction to the challenges of the coming decade in the form of stricter emission limit values, the concerns of pedestrian protection and the increasing demand for comfort with regard to internal and external acoustics, Volkswagen has developed a new generation of diesel engines. The 2.0-l-4V-TDI engine with common rail injection presented here and used for the first time in the new Volkswagen Tiguan, represents the start of a series of dynamic and efficient diesel engines. The combination of the successful 2.0-l-TDI engine with the common rail technology has resulted in an engine that already complies with the limit values of the Euro 5 emission standard and that is characterised by its smooth running and comfort in addition to the driving pleasure and economic efficiency that it provides.