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, Volume 21, Supplement 1, pp 40–45 | Cite as

Potential of variable intake manifolds to reduce CO2 under partial load

  • Heinz Bühl
  • Matthias Kratzsch
  • Michael Günther
  • Herbert Pietrowski
75 years of MANN+HUMMEL Technology

Since the introduction of turbocharging, the use of variable intake manifolds to boost performance has declined. In addition to influencing the full load characteristic curve, active intake manifolds however offer advantages in partial load operation. MANN+HUMMEL and IAV have studied the fuel consumption potential of variable intake manifolds on two current gasoline engine concepts in the NEDC.

Optimization throughout the entire engine map

Against the background of climate change, the EU Commission plans to limit the maximum CO2 emissions of the fleet average to 95 g CO2/km by 2020. The CO2 reduction can take place in the combustion engine as well as through hybridization or by using an electric drive. If these targets are not achieved, the EU Commission intends to introduce a fine as of 2019 of Euro 95 per gram of excess CO2 for every vehicle sold. The associated, considerable cost burden for the manufacturer is increasing pressure on them to reduce CO2 emissions.

Variable intake...

Keywords

Full Load Partial Load Intake Manifold Valve Timing Real Driving Emission 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. [1]
    Kuhn, M.: Effiziente Ansaugsysteme — dargestellt am Beispiel des neuen Audi-2,0-l-5V-Motors. HdT-Tagung Ansaugsysteme, [Efficient intake systems — shown using the example of the new Audi 2.0l 5V engine, HdT Conference on Intake Systems] Essen, 2001Google Scholar
  2. [2]
    Jahrens, H.-U.; Krebs, R.; Lieske, S.; Middendorf, H.; Breuer, M.; Wedowski, S.: Untersuchungen zum Saugrohreinfluss auf die Klopfbegrenzung eines Ottomotors. [Investigations into the intake manifold influence on the knocking restriction of a gasoline engine.] 10. Aachener Kolloquium Fahrzeug- und Motorentechnik, 2001 [10th Aachen Colloquium on Vehicle and Engine Technology]Google Scholar
  3. [3]
    Kirsten, K.; Brands, C.; Kratzsch, M.; Günther, M.: Selektive Umschaltung des Ventilhubs beim Ottomotor. [Selective switching of the valve stroke in a gasoline engine.] In: MTZ 73 (2012), No. 11, p. 834–839Google Scholar
  4. [4]
    Denner, V.: Zukunft gestalten — Innovationen für effiziente Mobilität. [Designing the future — Innovations for efficient mobility.] 34. Internationales Wiener Motorensymposium, 2013 [34th International Viennese Engine Symposium]Google Scholar

Copyright information

© Springer Fachmedien Wiesbaden 2016

Authors and Affiliations

  • Heinz Bühl
    • 1
  • Matthias Kratzsch
    • 2
  • Michael Günther
    • 3
  • Herbert Pietrowski
    • 1
  1. 1.IAV GmbHLudwigsburgGermany
  2. 2.IAV GmbHBerlinGermany
  3. 3.IAV GmbHChemnitzGermany

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