Cylinder deactivation is a fuel consumption reduction technology for throttled internal combustion engines and other engines with thermal efficiency loss at part cylinder load. Recent production implementations, deactivating fixed sets of cylinders under part-load operating conditions, have had limited “fly zones” due to issues with drivability and noise, vibration and harshness (NVH). Dynamic skip firing, which in its ultimate form incorporates anytime, any-cylinder deactivation, continuously varies the number of firing cylinders, along with cylinder load, obtaining flexible control of acoustic and vibrational excitations from the engine, and allowing an expanded operational envelope with fewer drive ability/NVH issues. This paper outlines design considerations of dynamic skip fire operational strategies, discusses implementation of the system on a vehicle, and presents benefits to fuel economy and NVH.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Design and Benefits of Dynamic Skip Fire Strategies for Cylinder Deactivated Engines


    Additional title:

    Sae Int. J. Engines


    Contributors:

    Conference:

    SAE 2013 World Congress & Exhibition ; 2013


    Published in:

    Publication date :

    2013-04-08


    Size :

    11 pages




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Design and Benefits of Dynamic Skip Fire Strategies for Cylinder Deactivated Engines

    Wilcutts, M. / Switkes, J. / Shost, M. et al. | British Library Conference Proceedings | 2013


    Electrified Dynamic Skip Fire (eDSF): Design and Benefits

    Confer, Keith / Eisazadeh-Far, Kian / Wilcutts, Mark et al. | SAE Technical Papers | 2018


    Electrified Dynamic Skip Fire (eDSF): Design and Benefits

    Wilcutts, Mark / Nagashima, Masaki / Eisazadeh-Far, Kian et al. | British Library Conference Proceedings | 2018


    Fuel Economy Gains through Dynamic-Skip-Fire in Spark Ignition Engines

    Eisazadeh-Far, Kian / Younkins, Matthew | SAE Technical Papers | 2016


    Fuel Economy Gains through Dynamic-Skip-Fire in Spark Ignition Engines

    Eisazadeh-Far, Kian / Younkins, Matthew | British Library Conference Proceedings | 2016