IAV at the 26th Aachen Colloquium Automobile and Engine Technology

Working Towards the Intelligent Powertrain

      Concepts and Technologies for Minimum Emissions and Maximum Efficiency

      IAV is preparing the way for zero-emission driving – including an optimum powertrain and alternative drive systems. For all-electric cars, IAV has developed a modular electric drive unit for various powertrain configurations.

      We will be presenting these solutions at the 26th Aachen Colloquium Automobile and Engine Technology on October 9-11:

      The new generation of electric drive units from IAV makes it possible to create an all-electric car. The modular concept consists of an electric motor and a transmission with one to three speeds. The solution that we have developed provides high torque across a wide speed range, takes up little package space and can be mass-produced cost-effectively. The modular electric drive unit ensures high hill-climbing ability and, at the same time, maximum efficiency. It can also be used flexibly and is suitable for various powertrain configurations, such as battery-powered and fuel cell vehicles. (...) More

      In order to meet all the different development targets (CO2 emissions, performance, ride comfort, weight, costs etc.) for 2025 and 2030, OEMs are looking for the most sustainable scenarios in view of the trade-off between fleet consumption, modular systems and costs. The powertrain plays a pivotal role in this search. Fundamental decisions are hugely important and extremely difficult to rectify at a later stage. The targets, requirements and framework conditions are so complex that it is no longer enough to simply optimize the powertrain components using conventional development methods. This is why we are supporting our customers with IAV powertrain synthesis. (...) More

      CNG-fueled vehicles are real climate protectors. Operating on CNG (compressed natural gas), they emit around twenty percent less CO2 than a comparable gasoline engine vehicle. If the gas comes from renewable sources, a reduction of 80 percent is even possible. Added to this are the lower energy taxes on natural gas, making the vehicles attractive for their users from an economic point of view as well. (...) More

      CNG as an Alternative


      Unveiling the A4 Avant 2.0l g-tron and the A5 Sportback 2.0l g-tron, Audi has launched two CNG-F vehicles this year that incorporate developments from IAV. With the engine control system for bi-fuel operation, IAV has also introduced an advanced lambda-split process into volume production. At low catalytic converter temperatures, two cylinders are fired with a rich fuel mixture and two with a lean fuel mixture. The two rich-burn cylinders deliver relatively high levels of hydrocarbon whereas the two lean-burn cylinders contribute a large quantity of oxygen. Overall, lambda remains at its optimum value of one.

      The reaction of the hydrocarbons and oxygen in the catalytic converter increases the temperature in the catalytic converter to at least 550 degrees Celsius. Even at low loads, this ensures conversion of the methane in the exhaust gas. This does, however, require precision metering of the fuel into the cylinders. For this reason, IAV engineers have developed an algorithm for determining the efficiency of the gas injection valves. Variations or aging effects don’t have any impact on the lambda-split process. In Aachen, IAV is showing the engine used in the A4 Avant 2.0l g-tron and in the A5 Sportback 2.0l g-tron.

    • Map – IAV at the Aachen Colloquium

      Event venue

      Eurogress Aachen
      Monheimsallee 48
      52062 Aachen

      Event times

      Tuesday 10 October
      8.30 am – 6 pm

      Wednesday 11 October
      8.30 am – 4.45 pm

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