Fraikin, Nicolas Funk, Kilian Frey, Michael Gauterin, Frank
Published in
Automotive and Engine Technology
The industrialization of automated driving functions according to level 3 requires an efficient test and calibration concept to deal with an increased complexity, growing customer demands, and a larger vehicle fleet offered. Therefore, a method for a complexity reduction of the calibration parameter space is presented. In the two-step approach, a q...
Schmiedel, Bernhard Gauterin, Frank Unrau, Hans-Joachim
Published in
Automotive and Engine Technology
Wet roads lower the tire traction and, hence, increase the risk of accidents. The exact friction coefficient between tire and road depends on a variety of influences, one of them being the road wetness or water height. To support drivers and autonomous systems in safe guidance of the vehicle, information about road wetness is helpful. In this paper...
Peters, Peter Lukas Kröger, Lars Demuth, Rainer Schramm, Dieter
Published in
Automotive and Engine Technology
This paper presents an approach for linking the vehicle concept design in the early phase of development with findings from the forecast of mobility behavior under the boundary conditions of a future scenario for Germany. The focus is on an objective and data-based methodology for the derivation of design premises for vehicle concepts, illustrated ...
Saupp, L. Schwarz, B. Schwalm, M. Eckstein, L.
Published in
Automotive and Engine Technology
The developments in Steer-by-Wire Systems allow for the re-thinking of the commonly known steering system meaning both the development of new controls replacing the steering wheel as well as the design of the feedback corresponding to inform the human driver about the vehicle state. By conducting a user study in a high fidelity driving simulator th...
Hengst, Johannes Seidel, Tim Lange, Andreas Küçükay, Ferit
Published in
Automotive and Engine Technology
This paper presents a simulation methodology developed at the Institute of Automotive Engineering (IAE). With this simulation method, transmission lossmaps can be calculated for Dedicated Hybrid Transmission (DHT). These transmission lossmaps are considered within the control strategy section of a modular simulation model, which can lead to more re...
Damyanov, A. Hofmann, P.
Published in
Automotive and Engine Technology
The usage of ethanol and two different mixtures of ethanol and gasoline (E85 and E65) was investigated on a modified diesel engine designed to work in a dual-fuel combustion mode with intake manifold alcohol injection. The tests were conducted at five operating points covering low, medium and high load and different engine speeds. Additionally, an ...
Schydlo, Alexander Stöckl, Jonas
Published in
Automotive and Engine Technology
This paper presents the results of a holistic exergy analysis of the cooling circuits for HEV and BEV battery cooling systems. The aim of the performed analysis is to give a proposal for the best possible thermohydraulic solution of the cooling system for battery units. The exergy analysis helps to detect possibilities to improve thermal processes ...
Grüneberger, P. Hengge, E. Winklhofer, E.
Published in
Automotive and Engine Technology
A heavy-duty diesel engine has been constructed to provide full optical access to the piston bowl with a window forming the bottom of the “optical” piston. The engine is operated up to 1400 rpm, with peak firing pressure of up to 160 bar and IMEP levels of up to 20 bar. Fuel injection is accomplished with a common rail system and an externally driv...
Woerner, S. Kaiser, T. Beck, L. Grosskopf, T. Kuenzel, C.
Published in
Automotive and Engine Technology
This study investigated the corrosion of aluminum in various ethanol/water mixtures. It has been shown that a critical corrosion temperature exists at which a sudden exothermic corrosion occurs. This critical corrosion temperature is dependent on presence of water and increases with increasing water concentration. This corrosion is independent of t...
Eichlseder, H. Eckstein, L.
Published in
Automotive and Engine Technology
