This paper presents a new concept for an electro-mechanical cam phase shifting device (eCPS) along with its control structure. The proposed eCPS features a positive differential gear mechanism with a unique self-locking characteristic. Proof-of-concept simulations were performed using both ADAMS and Simulink analysis tools to evaluate the validity of the concept and its performance. Comparisons with other cam phasers were also discussed.Results confirmed the frictional locking mechanism which not only allows for reduced control effort but also provides the system with an important fail-operational feature. The frictional locking mechanism significantly reduces the reliability burden upon the electric machine. It was indicated that eCPS compares favorably with hydraulic cam phasers in shifting range, position holding, slew rate, system stiffness and power consumption. The performance of eCPS is independent from engine performance characteristics and environmental conditions.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Electrical Variable Cam Phase Shifter for Internal Combustion Engine


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE World Congress & Exhibition ; 2008



    Publication date :

    2008-04-14




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Electrical variable cam phase shifter for internal combustion engine

    Ai,X. / Wilmer,M. / Remboski,D. et al. | Automotive engineering | 2008



    Conception of internal combustion engine with variable ratio

    Jaskolski,J. / Broniewicz,R. / Univ.Krakau,PL | Automotive engineering | 1993


    ELECTRICAL MACHINE CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

    YASUHARA JUNICHI | European Patent Office | 2019

    Free access

    C-band variable power divider and variable phase shifter developments

    SMITH, T. / MATTHEWS, E. / BOYD, JR., C. | AIAA | 1982