Potential of Valve Train Variabilities on Gas Exchange of Diesel Engines II

The variable valve train delivers multiple potentials to achieve future emission legislations by a reduction of engine out emissions and control of exhaust gas temperature. These characteristics have been demonstrated by numerous research projects in the past. As part of a FVV research project, the potential of a variable valve train in passenger car diesel engine application has been analysed and then evaluated at the Institute for Combustion Engines of RWTH Aachen University with the help of extended experimental investigations on a laboratory test bench and a demonstrator vehicle. The results of the research can be used to generate operation strategies to support the engine cold start and heat-up behaviour. AUTHORS