26th Aachen Colloquium Automobile and Engine Technology 2017
Innovative Catalyst Substrate Components for Future Passenger Car Diesel Aftertreatment Systems
Authors
Rolf Brück, Peter Hirth, Francois Jayat
Continental Emitec GmbH, Lohmar
Summary
To keep an open minded and positive future for the Diesel engine it is a must that the engine, the engine management, the catalyst and filter systems fulfill their requirements not only in the certification test cycles but also during real world driving. Future catalyst and filter systems have to provide an efficiency which enables ultra clean vehicles.
The additional potential of lowering CO2 emissions for the passenger car fleet will give the diesel powertrain also in electrified vehicles as 48 V Mild Hybrids and Plug-in Hybrids an opportunity for the next decades.
In order to achieve this requirements each component of the aftertreatment system has to be optimized and adapted to its task.
Metal substrates offer these opportunities. By using specially designed substrates tasks like uniform flow and ammonia distribution, passive and active thermal management and space optimized installation can be fulfilled.
The influence of single catalyst components and the ideal combination was examined and tested on an engine test bench. As a result a guideline for future innovative exhaust systems can be given.
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