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  1. 1. Dynamic Torque Modeling of a Wet Lamella Clutch Pack

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automation

    Författare :Jacob Wallersköld; Johan Appelros; [2021]
    Nyckelord :wet lamella clutch; friction modeling; torque modeling; torque accuracy; force measurements; system identification; grey-box modeling; Technology and Engineering;

    Sammanfattning : Wet lamella clutches are used in the automotive industry to enable all-wheel drive and thereby increase acceleration, handling and safety of cars. The clutches work by transmitting torque from an incoming- to an outgoing shaft through a series of lamella - steel-disc friction surfaces (lamella pack), lubricated by an oil. LÄS MER

  3. 2. Prediction of life durability in friction for wet clutches of DCT gearboxes

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Lars-Johan Sandström; [2020]
    Nyckelord :wet clutch; DCT; Gearbox; Durability; Friction; Life; Dual Clutch Transmission;

    Sammanfattning : Many new cars are equipped with automatic transmissions. These gearboxes often have a dual clutch transmission (DCT) that has a built-in wet clutch. The lubricants used in these gearboxes is often very advanced because it must take care of two systems, the wet clutch and the gears. There is always a strive to make the drain intervals longer. LÄS MER

  4. 3. Evaluations of Vibrations in a Wet Clutch

    Uppsats för yrkesexamina på grundnivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :David Sandlund; Oskar Wintercorn; [2019]
    Nyckelord :Haldex; BorgWarner; Friction; Vibrations; Wet Clutch; Tribology; 4wd; four wheel drive; all wheel drive; awd;

    Sammanfattning : BorgWarner Powerdrive Systems is constantly developing the performance of wet clutches used in passenger car all-wheel drive systems. The Haldex limited slip coupling, LSC, is the trade name of the all-wheel drive system sold and developed by BorgWarner Powerdrive Systems. LÄS MER

  5. 4. CFD on Open Wet Cutch to Reduce Drag Losses

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Rimmie Duraisamy; [2017]
    Nyckelord :transmission; clutch; multiphase CFD; grooves; oil dissipation; drag losses; transmission; koppling; Multifas-CFD; spårmönster; undanträngning av oljan; strömningsförluster;

    Sammanfattning : As the need for highly efficient transmission systems increase, it is imperative to have lower fuel consumption levels. Hence, it becomes crucial to investigate and understand reasons behind various losses occurring within the system. Clutches and gears contribute to the major losses within a transmission system. LÄS MER

  7. 5. Controlled Start Transmission Wet Clutch Temperature Modeling and Application

    Master-uppsats, Linköpings universitet/Fordonssystem

    Författare :Joel Martinsson; [2015]
    Nyckelord :Clutch Temperature Modelling CST;

    Sammanfattning : Controlled Start Transmissions (CST) can be described as a mechanical transmission combined with a wet clutch for controlled torque output. CST:s are commonly used to start up heavy loads for example mining conveyors. Several CST:s can work together to share the load. LÄS MER