Abstract
Gasoline downsizing and turbocharging has become a key contributor to respect future legislation regarding CO2 emissions and engine dynamics. In turbocharged engines, increasing charge pressure will cause rising charge air temperatures. Increased charge air temperatures also increase the thermal strain on charge air cooler and air intake module, and have a negative effect on combustion. As a result, the engine’s response characteristics and torque output will deteriorate, accompanied by increased fuel consumption. By cooling the charge air, combustion is improved significantly, and the tendency to knocking decreases. At full load, the spark can be advanced, and combustion can be more efficient. Due to the higher mass flow, the turbocharger will also respond more readily. At lower engine speeds, this will lead to improved dynamics and torque. At high speed and load, the cooled charge air will also reduce the requirements for overfueling and thus fuel consumption. We have investigated the effects of charge air temperature on combustion in a 1.2 L three-cylinder gasoline engine. Our results show improvements in consumption, torque and dynamics. At increasing specific and absolute engine performance, even higher potentials can be expected.
F2012-A09-022
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Zuck B (2012) Downsizing—Auswirkungen auf das Wärmemanagement Proceedings. Wärmemanagement des Kraftfahrzeugs VIII expert-Verlag
Eilemann A, Stehlig J (2011) Indirekte Ladeluftkühlung—Ein Wegbereiter zur CO2 − Reduzierung OEM Supplier
Szengel R et al (2007) Der TSI-Motor mit 90 kW MTZ 07-08 2007
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2013 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Juergen, S., Rene, D., Johann, E., Rolf, M., James, T. (2013). Air Intake Modules with Integrated Indirect Charge Air Coolers. In: Proceedings of the FISITA 2012 World Automotive Congress. Lecture Notes in Electrical Engineering, vol 190. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-33750-5_46
Download citation
DOI: https://doi.org/10.1007/978-3-642-33750-5_46
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-33749-9
Online ISBN: 978-3-642-33750-5
eBook Packages: EngineeringEngineering (R0)