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When new vehicles are being developed and will later be made available to the market, one of the most important characteristics that may influence the buying decision is the comfort available to the driver and passenger inside the vehicle. This comfort is partially limited by NVH issues inside the car for example. With the new technologies development, vehicles have become noiseless and, that’s why some vibrations from fuel supply module that weren't identifiable then now might show themselves a huge impact of noise inside the vehicles. So it is important to analyze the NVH behavior of fuel supply modules. To perform this study in a short time and with low cost, CAE simulations were done focusing on geometry optimization of the pump holder that keeps the electric fuel pump inside the fuel tank.

Research shows that Brazil is among countries of Latin America, Africa and Asia which are considered as bad fuel market [1]. Fuel with poor quality reduces considerably the lifetime of fuel filter installed in vehicles. For this reason, the correct dimensioning of this component is extremely important. In order to improve this development, it is necessary to enlarge the knowledge of the fuel filter. This paper correlates the fuel filter bench test with field results improving the feasibility to use the laboratory data to estimate the fuel filter area and consequently the product lifetime.

The automotive components NVH levels are increasingly restricted due the improvement search to reduce the overall noise. Generally, the noise is just detected in advance phases of the projects and consequently the reaction time is a problem. For the Fuel Pump Module, there is no validated simulation to prevent the noise behavior before samples manufacturing. The result of this scenario is a late assessment of noise in bench and/or vehicles. In certain Fuel Pump Module application, was detected an excessive noise level in high frequency range on test bench. At this case the Noise failure mode is completely new when compared for other Bosch Fuel pump Module. Knowing that the time is one of the main restrictions for automotive projects was necessary a fast approach to develop an optimized noise improvement performance. This paper aims to describe a noise evaluation methodology based on Design of Experiments.