Dual Clutch Transmissions (DCT) play an important role in present and future powertrain concepts. Their potential to save fuel and, at the same time, increase comfort and dynamics is an essential feature for success in the automotive industry. When introduced into the market, dual clutch transmissions were the first automatic transmissions that enabled fuel efficiency similar to, or even better than, manual transmissions. A major reason for this is the remarkably low drag losses associated with the DualTronic clutch systems when compared to traditional automatic transmission clutch systems. This paper presents automatic transmission concepts based on the proven DualTronic technology for small low cost automobiles. Fuel economy and cost are the primary driving forces for development in the car industry. The most important factors influencing consumer decisions are the price of the vehicle itself and its associated running costs, which includes the cost of fuel, maintenance, and repair. The main targets in development of these dual clutch concepts are efficiency, cost and robustness. This paper discusses the dual clutch transmission concepts along with its key components, which contribute to its excellent performance. Also mentioned are the various improvements made to the dual clutch transmission since it was first introduced in the market. Various attributes of dual clutch transmission such as overload protection, compact packaging, and low cost are discussed in detail. The specific efficiency advantages of the dual clutch transmission and comparison to other transmissions will be demonstrated based on vehicle data, test rig results, and system simulations.


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    Title :

    BorgWarner DualTronic transmission concepts for efficiency, cost & robustness


    Contributors:


    Publication date :

    2009


    Size :

    14 Seiten, 11 Bilder, 1 Tabelle, 4 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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