About
10
Publications
738
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
31
Citations
Introduction
Skills and Expertise
Publications
Publications (10)
Upcoming ICE emission legislations for different markets (e.g. EU, US,China) will continue to focus on the monitoring of vehicles with high pollutant emissions . The upcoming EU7 emission legislation is not finalized yet but based on the current positions of the European Commission, Council and Parliament the on-board monitoring (OBM) of tailpipe t...
IAV developed an combination of a MAP-based raw emission model, which is input to a Neural Network. Focus is on raw emissions from ICE vehicle (NOx, CO, HC, PM.....)
The MAP is calibrated with stationary measurements from a engine test bench with high robustness through DoE methods and a wide range of input variation (tolerances and calibration ran...
In recent years, engine calibration efforts have increased dramatically in order to fulfill legislation requirements, in particular the reduction of undesired emissions and fuel consumption while maintaining drivability and meeting comfort demands. Dynamic modeling has been shown to be a useful tool in this context. In this paper it is shown how no...
A crucial point in nonlinear dynamic modeling is the design of a suited excitation signal. It has to fulfill several criteria, like coverage of important amplitude levels and of important frequency range, and for multichannel systems an orthogonal or at least as orthogonal as possible design is desired. Differing from theoretically optimal excitati...
The continuously tightening emission legislations all over the world require more and more complex engine control and exhaust gas after-treatment systems. This confronts current engine development with the need for ever more complex engine systems with a continuously increasing amount of parameters that have to be calibrated and controlled in conti...
Fast-tracking the basic calibration of combustion engines is an ambition of many engine developers. Yet, at the same time, there is a trade-off between the speed and accuracy of basic calibration. IAV has developed a method that relaxes this conflict as it quickly produces models of sufficient accuracy to permit basic calibration. This is one way o...
Eine schnelle Grundbedatung für Verbrennungsmotoren ist ein Ziel vieler Motoren entwickler. Dabei gibt es jedoch den Zielkonflikt zwischen einer schnellen und einer genauen Grundbedatung. Bei der IAV wird eine Methode entwickelt, die diesen Zielkonflikt abschwächt. Das heißt, in sehr kurzer Zeit können hinreichend genaue Modelle gewonnen werden, mi...
Modern calibration engine control unit requires a huge number of measurements to fill their maps. Steady state measurements at the engine test bed are still very important to find the optimal settings of all control parameters for an engine operating point. Model-based methods - like design of experiments - are more and more used to reduce the need...
Model-based methods, such as design of experiments (DoE), have become more and more established in recent years in optimizing control maps in engine ECUs from the aspects of ride comfort, fuel economy and emissions. As a result of the rising number of control parameters and ever shorter development times, the aim in this context is to develop autom...