Search for dissertations about: "motor vehicles"

Showing result 1 - 5 of 67 swedish dissertations containing the words motor vehicles.

  1. 1. Integrated Motor Drives and Battery Chargers for Electric or Plug-in Hybrid Electric Vehicles

    Author : Saeid Haghbin; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; maximum torque per Ampere strategy.; integrated motor drive and battery chargers; field-oriented control; battery charger; isolated and non-isolated integrated charges; Plug-in vehicles; split-phase PM motor;

    Abstract : Plug-in vehicles, electric vehicles or plug-in hybrid electric vehicles, use grid power to charge the battery. The components in the traction circuit, like the electric motor and the inverter, are not used during the battery charging, so there is a possibility to use them in the charger circuit to reduce the size, weight and price of the on-board charger; that is called an integrated motor drive and battery charger or simply an integrated charger which can be galvanically isolated or non-isolated from the utility grid. READ MORE

  2. 2. Space and Sensibility : Young Men’s Risk-Taking with Motor Vehicles

    Author : Tanja Joelsson; Jeff Hearn; Carina Listerborn; Aretun Åsa; Tracey Skelton; Åsa Aretun; Linköpings universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Gender; masculinity; age; class; place; spatial boredom; risk­‐taking; violence; violations; ethnography; Kön; maskulinitet; ålder; klass; plats; rumslig tristess; risktagande; våld; kränkning; etnografi;

    Abstract : In this ethnographic study of “Volvo greasers” [Volvoraggare] in a peri-urban community in Sweden, risk-taking practices with motor vehicles, such as speeding and drifting, are explored and analyzed in relation to age, gender, class and place. Young men’s risk-taking with motor vehicles regularly generates public debate as a traffic safety issue, often resulting in various policy suggestions, such as curfews or raising of the driving licence age. READ MORE

  3. 3. On design methods for mechatronics : servo motor and gearhead

    Author : Fredrik Roos; Jan Wikander; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Applied mechanics; mechatronics design methodology; servo systems; electric motors; gears; auxiliary systems; Teknisk mekanik; Engineering mechanics; Teknisk mekanik;

    Abstract : The number of electric powered sub-systems in road-vehicles is increasing fast. This development is primarily driven by the new and improved functionality that can be implemented with electro-mechanical sub-systems, but it is also necessary for the transition to electric and hybrid-electric drive trains. READ MORE

  4. 4. Using life cycle assessment to support the development of electrified road vehicles. Component data models, methodology recommendations and technology advice for minimizing environmental impact

    Author : Anders Nordelöf; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; inverter; magnet; LCI; electrical machine; stepwise improvements; electric vehicle; LCA; inventory data; motor; critical review; scalable model;

    Abstract : The anthropogenic pressure on the Earth system already overshoots safe limits for climate change, so there is an urgent need to drastically reduce greenhouse gas emissions caused by transportation. Electric propulsion technology is a promising solution that can decouple fossil fuel use from road vehicle traffic. READ MORE

  5. 5. Methods for motor noise evaluation and control in electric vehicles

    Author : David Lennström; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk akustik; Engineering Acoustics;

    Abstract : Complete vehicle, system and component target setting for noise, vibration and harshness (NVH) are important activities within automotive product development. New challenges arise when electric motors are introduced into cars traditionally powered by internal combustion engines (ICE). READ MORE