Electric vehicles are more and more popular nowadays. This is the reason, why the problem of noise, vibration and harshness of these vehicles is in focus of discussions. This paper presents the results of a study about vibration testing of vehicles driven by electric motor on the one hand and Internal Combustion Engine (ICE) on the other hand. During the tests, carried out on the test rig of the laboratory, vibrations of rolling element bearings have been measured at several rotational speeds in the horizontal, vertical and axial direction. For the measurements a four channels vibration analyser was used. Piezoelectric accelerometers were fixed to the bearing houses by magnets. Acceleration, velocity and displacement signals were recorded in several frequency ranges at various locations of the cars. Special attention was paid to the wheel bearing units. For processing raw vibration data different filters have been used. The authors analysed the condition of the rolling element bearings by using both time signals and vibration spectra. In order to increase the reliability of the failure detection, commercially available post processing methods have been used in the high frequency range. The measured signals of cars driven by electric motor and petrol/gasoline engines were compared on waterfall diagrams. The obtained results demonstrate that vibration measurement is a useful tool for monitoring the condition of rolling element bearings in order to avoid unexpected failures.


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    Title :

    Comparative Testing of Vibrations in Vehicles Driven by Electric Motor and Internal Combustion Engine (ICE)


    Additional title:

    Lect.Notes Mechanical Engineering



    Conference:

    Vehicle and Automotive Engineering ; 2022 ; MISKOLC, Hungary September 08, 2022 - September 09, 2022



    Publication date :

    2022-09-10


    Size :

    9 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English





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