Search for dissertations about: "CVT"

Showing result 1 - 5 of 8 swedish dissertations containing the word CVT.

  2. 1. Continuously Variable Split-Power Transmissions with Several Modes

    Author : Per Mattsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; continuously variable transmission; variator; speed ratio range; ratio coverage; traction drive; mode shift; CVT; planetary gear; power split; IVT; infinitely variable transmission; epicyclic gear train; hydrostatic variator;

    Abstract : A continuously variable transmission (CVT) of split-power design consists of a variator and an arrangement of planetary gears. A black box model describing such transmissions is presented. The model can be used for synthesis as well as loss-free analysis of split-power CVT concepts in general. READ MORE

  4. 2. On Rolling Variators, A study of power transmitting rolling variators when changing speed ratio

    Author : Göran Brännare; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; friction drives; traction drives; variators; traction; CVT; speed ratio change; rolling traction trnasmissions; continously variable transmissions; rolling contact drives; transmission ratio change;

    Abstract : The introduction of the concept Rolling Variators is proposed for rolling contact continuously variable transmission.A theoretical study of rolling variators when changing the speed ratio during power transmission is presented. READ MORE

  5. 3. Modelling of continuously variable split-power transmissions with several modes

    Author : Per Mattson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; planetary gear; continously variable transmission; mode shift; power split; epicyclic gear train; CVT; variator;

    Abstract : .... READ MORE

  6. 4. Optimal Engine Operation in a Multi-Mode CVT Wheel Loader

    Author : Tomas Nilsson; Jan Åslund; Lars Nielsen; Anders Fröberg; Lars Johanneson Mårdh; Linköpings universitet; []
    Keywords : ;

    Abstract : Throughout the vehicular industry there is a drive for increased fuel efficiency. This is the case also for heavy equipment like wheel loaders. The operation of such machines is characterized by its highly transient nature, the episodes of high tractive effort at low speed and that power is used by both the transmission and the working hydraulics. READ MORE

  7. 5. Powerful tool for analysis of systems containing traction point contacts

    Author : Mikael Törmänen; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; rolling and spinning hertzian point contacts; continuously variable transmission CVT ; traction drive variator; complete elliptical integrals; multi-body system MBS ; virtual prototyping;

    Abstract : .... READ MORE