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This paper will first describe the project FORFAHRT. The aim of FORFAHRT is the identification and analysis of improved low-emission drivetrain structures for integration into a driver assistance system. Part of the assessment during the project will be DI-spark-ignition engines, integrated starter alternator systems as well as different transmission concepts such as CVT-transmissions or automated manual transmissions. The analysis focuses on “conventional” drivetrain components, not on hybrid or electric propulsion. The analysis is done with the sub-microscopic traffic simulation program PELOPS [5], which was developed at the ‘Institut fuer Kraftfahrwesen Aachen’ in co-operation with the BMW AG. PELOPS models the fundamental elements of traffic -namely route, environment, driver and vehicle- with highest accuracy. The second part of the paper gives first results of the project work.

At the ‘Institut fuer Kraftfahrwesen Aachen, ika’ (Institute of Automotive Engineering, Technical University Aachen, Germany) the submicroscopic traffic simulation program PELOPS (Program for the dEvelopment of Longitudinal micrOscopic traffic Processes in a Systemrelevant environment) was developed in co-operation with the BMW AG (1). PELOPS is oriented towards the fundamental elements of traffic, namely route and environment, driver and vehicle. The focal point of latest research with PELOPS was the investigation of optimizing measures through the application of new vehicle- and traffic-technologies. Effects on driving-comfort, driving safety, traffic efficiency as well as fuel consumption and emissions are simulated and assessed in urban traffic, various traffic situations on German highways and synthetic testing-procedures. The paper gives information about the simulation techniques and the results of the current analysis.