The US engine market is unique. The vast majority of engines in service in North America, nearly 75 %, have six or eight cylinders. Furthermore, the preferred valvetrain architecture for most high displacement, high horsepower engines is the cam in block, or pushrod, type valvetrain. These types of high power density engines operate under part load during normal driving conditions. An opportunity to leverage this fact to improve fuel economy in these types of engines by selectively deactivating the engine's cylinders during steady-state operation was seized upon. This paper covers the design and development of the Multi-displacement System (MDS) cylinder deactivation feature on the DaimlerChrysler 5.7L HEMI engine. Design, layout and operation of the engine hardware are discussed in detail, describing the following issues: - engine hardware, - oil control solenoid details, - engine hardware operation, - operating parameters, - development of the engine hardware, - torque matching, - torque during transitions, - algorithm and calibration verification, - vehicle integration, - engine mounting, - exhaust and induction system, - fuel economy. The integration of cylinder deactivation into the engine architecture minimizes the cost and complexity while increasing reliability. Improvements in mass production manufacturing precision have lowered the cost and increased the reliability of the engine hardware.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Features and development of the DaimlerChrysler 5.7 l HEMI engine multi-displacement system


    Additional title:

    Funktion und Entwicklung des DaimlerChrysler 5.7 l HEMI Motors mit dem Zylinderabschaltung


    Contributors:


    Publication date :

    2005


    Size :

    20 Seiten, 18 Bilder, 4 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Features and Development of the DaimlerChrysler 5.71 HEMI® Engine Multi-Displacement System

    Falkowski, A. / McElwee, M. / Geiger, U. et al. | British Library Conference Proceedings | 2005


    Design and development of the DaimlerChrysler 5,7 l HEMI engine multi-displacement cylinder deactivation system

    Falkowski,A. / McElwee,M. / Bonne,M. et al. | Automotive engineering | 2004


    Design and Development of the DaimlerChrysler 5.7L HEMI® Engine Multi-Displacement Cylinder Deactivation System

    Falkowski, Alan / McElwee, Mark / Bonne, Mike | SAE Technical Papers | 2004


    The New DaimlerChrysler Corporation 5.7L HEMI® V8 Engine

    Maru, D. B. / Pannone, G. / Macfarlane, G. R. et al. | SAE Technical Papers | 2002


    The New DaimlerChrysler Corporation 5.7L HEMI® V8 Engine

    Lee, R. E. / Hartman, P. G. / Macfarlane, G. R. et al. | British Library Conference Proceedings | 2002