25 % of the cars around the world are fitted with one of LuK clutches. Transmission technology has developed into an innovative driving force in the automotive industry with auto shift gearboxes and twin clutch gearboxes providing alternatives to conventional automated transmissions. For LuK, these gearbox variants comprise its XSG family that embraces electronic clutch management (ECM), the Auto Shift Gearbox (ASG), the Uninterrupted Shift Gearbox (USG), the Parallel Shift Gearbox (PSG) and the Electrical Shift Gearbox (ESG). The PSG, otherwise known as the twin clutch gearbox, known as DSG - Direct Shift Gearbox in Volkswagen parlance, combines the advantages of a conventional six-speed manual shift gearbox with the qualities possessed by a modern automatic transmission. The technical basis is a double clutch consisting of two wet platetype clutches with hydraulically regulated contact pressure. Building on the PSG concept is ESG in which a starter generator is linked to one of the gearbox shafts. An important part of the argument in favor of the automation of manual transmissions is the improvement in fuel consumption. While carmakers are still providing the impetus in developing new technology to win competitive advantage, the other driver is meeting the demands of the legislators. Another LuK solution is the continuously variable transmission (CVT), particularly the Multitronic transmission from Audi. But despite the torque capacity being increased to around 400 Nm the concept has not been taken up by other manufacturers. Alongside its transmission business, LuK is very active in pumps and over the last few years has been developing CO2 compressors.


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    Titel :

    A twin step forward


    Weitere Titelangaben:

    Firmenbericht: LuK


    Beteiligte:

    Erschienen in:

    Automotive Engineer ; 30 , 3 ; 20-21


    Erscheinungsdatum :

    2005


    Format / Umfang :

    2 Seiten, 1 Bild



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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