Diesel impulsiveness (so called Diesel knocking) present in the cabin of diesel vehicles is perceived as unpleasant because of its impulsive time structure. JD Power data clearly show the customers preference of vehicles with little Diesel knocking over those with severe knocking. Corresponding objective descriptors that reflect the customers' perception are introduced.The occurrence of such noise patterns is influenced by the combustion process itself as well as by all excited mechanical components within the power train. Further the transfer characteristics of the engine structure and various vehicle noise paths do contribute to a poor Diesel Sound Quality. It is essential that all these factors have to be considered in combination. This paper provides an overview about suitable methods and technologies, including Binaural Transfer Path Analysis and Synthesis. The potential of the approach is demonstrated by an example. Investigations are carried out on the complete vehicle and on the engine test bench, and principal improvements on engine level and on vehicle level are derived.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Improving Diesel Sound Quality on Engine Level and Vehicle Level - A Holistic Approach


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2007 Noise and Vibration Conference and Exhibition ; 2007



    Publication date :

    2007-05-15




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Improving Diesel Sound Quality on Engine Level and Vehicle Level - A Holistic Approach

    Sellerbeck, P. / Nettelbeck, C. / Heinrichs, R. et al. | British Library Conference Proceedings | 2007


    Improving diesel sound quality on engine level and vehicle level - a holistic approach

    Sellerbeck,P. / Nettelbeck,C. / Heinrichs,R. et al. | Automotive engineering | 2007


    An Approach to Improvement of Diesel Engine Sound Using Sound Quality Metrics Mapping

    Saito, H. / Shigyo, H. / Yamamoto, A. et al. | British Library Online Contents | 2012


    Engine Sound Level Measurement Procedure

    SAE Technical Papers | 2000


    ENGINE SOUND LEVEL MEASUREMENT PROCEDURE

    SAE Technical Papers | 1984