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The latest legislation requires a dramatic reduction of motor vehicle exhaust emission. This is also a big challenge for emission measurement instrumentation, because of almost zero concentrations of certain components in the exhaust. For current measurement devices, which are recommended by the legislation, it is almost impossible to determine such low emission levels with adequate accuracy. The paper describes a new Constant Volume Sampling (CVS) system with reduced dilution, warming and quick flow rate changing capability. Possible solutions are discussed and the properties of data measured with test facilities which are prepared to cover S-ULEV and EURO IV applications are described. Also the selection of used materials is of rising importance. The tests were performed on a dynamic engine test bed which was equipped with such a CVS system and with emission analyzing systems for raw exhaust and diluted measurements.

Every year several thousands of unprotected road users are killed in car accidents. The European Commission therefore is working on new regulations to improve passive pedestrian protection on passenger cars significantly. Our study evaluates an example where the simulation is compared to results of tests which have been performed on a vehicle. For the simulation we used finite element impactor models which are validated not only to the certification tests, but also to the vehicle which has been used and to the test equipment where the tests have been performed. Based on these data possible solutions for future developments are discussed and rated in this paper.

The goal of virtual interior development is the virtual release of components avoiding the usual “try and error” method. This paper gives an example how this process was realized for an a-pillar in a vehicle. We started the process in the early development phase of the interior components, where we evaluated a concept on which the surface design of the component was based. By using validated material models for the FMH-simulation, the solution for the deformation concept complying with FMVSS 201u was found without the need of prototype components. Based on the results of virtual data from the simulation, the final solution was released. Testing on the hardware together with a comparison of the results to the calculations finally verified the solution. In this way, the concept of this example's a-pillar trim could be released.

The latest legislation requires the automotive industry to once again reduce the emission levels of their latest vehicles. This leads to a new challenge in the field of emission measurement, because the concentrations of certain components of the exhaust gases are extremely low. For current measurement devices, which are recommended by the legislation, it is almost impossible to determine such low emission levels with the necessary accuracy. This study evaluates the features of an improved CVS system (Constant Volume Sampling) with the possibility of heating and the ability of changing flow rates quickly. Possible solutions are discussed and the properties of data measured with test facilities which are prepared to cover S-ULEV and EURO IV applications are described. The tests were performed on a dynamic engine test bed which was equipped with such a CVS system and with emission analyzing systems for raw exhaust and diluted measurements.