Sökning: "continuously variable transmission"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden continuously variable transmission.

  1. 1. Quadruped robot control and variable leg transmissions

    Författare :Johan Ingvast; Jan Wikander; Harry Dankowicz; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; walking robot; quadruped; walking; crawl; trot; passively variable transmission; PVT; variable transmission; continuously variable transmission; velocity ratio; torque ratio; Other engineering mechanics; Övrig teknisk mekanik;

    Sammanfattning : The research presented in this thesis regards walking of quadruped robots, and particularly the walking of the Warp1 robot. The motivation for the robot is to provide a platform for autonomous walking in rough terrain. The thesis contains six papers ranging from development tools to actuation of robot legs. LÄS MER

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

    Författare :Per Mattsson; Chalmers University of Technology; []
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER

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

    Författare :Per Mattson; Chalmers University of Technology; []
    Nyckelord :planetary gear; continously variable transmission; mode shift; power split; epicyclic gear train; CVT; variator;

    Sammanfattning : .... LÄS MER

  5. 4. Extended Computational Module for Tractive Effort at Rolling and Spinning Point Contacts

    Författare :Mikael Törmänen; Chalmers University of Technology; []
    Nyckelord :spin; thermal effects; Hertzian contact; continuously variable transmission; rolling resistance; speed pole; traction drive; multi-body system; efficient numerical procedure;

    Sammanfattning : One category of mechanical systems that contains power-transferring point contacts is traction drive variators. These variators can be used in different concepts for Continuously Variable Transmissions (CVTs) and in vehicle applications, in order to achieve optimum engine operating conditions leading to improved driveability, reduced fuel consumption and an increase in overall vehicle performance. LÄS MER

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

    Författare :Mikael Törmänen; Chalmers University of Technology; []
    Nyckelord :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;

    Sammanfattning : .... LÄS MER