Misfire monitoring is currently a mandatory On Board Diagnostic (OBD) regulatory requirement in most of the main automotive markets. The most common method used for misfire detection is the one based on the calculation of the derivative of the angular crankshaft velocity in which sharp variations of the derivative signal are associated to misfire events. Therefore, the misfire detection calibration is practically unique for a given engine hardware and installation.Within this context, this Paper will present a practical evaluation and also a computational simulation of the impact of an engine hardware change (front end accessory drive dumpers) on the calculated angular acceleration signal and, therefore, on the overall misfire detection capability. The outcomes of this study will ultimately define the need of calibration changes as well as support a future development of an analytical method to predicted impacts in misfire calibration.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Practical Evaluation and Computational Simulation of the Effect of Engine Front End Accessory Drive (FEAD) Dumpers on OBD Misfire Monitor Signal


    Additional title:

    Sae Technical Papers



    Conference:

    21st SAE Brasil International Congress and Exhibition ; 2012



    Publication date :

    2012-10-02




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Practical evaluation and computational simulation of the effect of engine front end accessory drive (FEAD) dumpers on OBD misfire monitor signal

    Alves, M.Z. / Pedreira, C.M. / Domingues, A.R. et al. | British Library Conference Proceedings | 2012


    Investigation on the vibration of the engine FEAD accessory driving belt

    Ding,Y. / Dong,Y. / Liu,H. et al. | Automotive engineering | 2012


    Investigation on the Vibration of the Engine Fead Accessory Driving Belt

    Ding, Yanping / Dong, Yifeng / Liu, HanJie et al. | Tema Archive | 2012


    Investigation on the Vibration of the Engine Fead Accessory Driving Belt

    Ding, Yanping / Dong, Yifeng / Liu, Hanjie et al. | Springer Verlag | 2012


    A Study on Front End Auxiliary Drive(FEAD) System of 48V Mild Hybrid Engine

    Yoon, Kibong / Hong, Jisoo / Shim, JaeYoung | British Library Conference Proceedings | 2018