Sökning: "peak car"

Visar resultat 11 - 15 av 22 avhandlingar innehållade orden peak car.

  1. 11. Design and Assessment of Battery Electric Vehicle Powertrain, with Respect to Performance, Energy Consumption and Electric Motor Thermal Capability

    Författare :Emma Grunditz; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; energy consumption; Battery Electric Vehicle; sizing;

    Sammanfattning : In this thesis, various drive cycles, legislative, official real-world and measured, have been studied and characterized based on their speed and acceleration content. Three reference vehicles (a City car, a Highway car and a Sport car) were conceptualized after performance requirements, with data on existing battery electric cars as a frame of reference. LÄS MER

  3. 12. Studies in Local Public Transport Demand

    Författare :Johan Holmgren; Jan Owen Jansson; Lars Westin; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Public transport; Demand; Elasticity; Price; Service; Time series; Panel data; Kollektivtrafik; Efterfrågan; Elasticitet; Pris; Trafikutbud; Inkomst; Bilinnehav; Tidsserieanalys; Paneldata; Economics; Nationalekonomi;

    Sammanfattning : This thesis consists of four papers where the overall purpose is to contribute to the understanding of how local public transport demand is affected by different factors. An underlying theme running trough the thesis is the two-way relationship between public transport demand and the service level caused by the fact that capacity and quality are joint products. LÄS MER

  4. 13. Sensorimotor function in chronic neck pain : objective assessments and a novel method for neck coordination exercise

    Författare :Ulrik Röijezon; Mats Djupsjöbacka; Martin Björklund; Charlotte Häger-Ross; Dario Liebermann; Mikael Karlberg; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Neck pain; Whiplash; Sensorimotor; Motor Control; Motor Learning; Neck Coordination Exercise; Postural Control; Cervical kinematics; Reliability.; Community medicine; Samhällsmedicin; rehabiliteringsmedicin; Rehabilitation Medicine;

    Sammanfattning : Chronic neck pain is a widespread problem that causes individual suffering as well as large costs for the society. The knowledge about the pathophysiology is poor and therefore specific diagnosis and causal treatment are rare. LÄS MER

  5. 14. Methods for Characterisation of Pressing Die Surfaces

    Författare :Johan C Berglund; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; finish milling; scale-sensitive fractal analysis; surface characterisation; polishing; functional correlation; : pressing dies; functional filtration; surface roughness; functional surface;

    Sammanfattning : Design and manufacture of dies and moulds is a critical aspect of many production systems since the manufacturing and try-out of new dies and moulds often is essential in determining the lead-time and quality of a new production system. In the automotive industry, many new car models are introduced each year and for each of these models, a new set of pressing dies has to be designed and manufactured. LÄS MER

  7. 15. Validity and reliability of vehicle collis : crash pulse recorders for impact severity and injury risk assessment in real-life frontal impacts

    Författare :Anders Kullgren; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :crash recorder; crash pulse recorder; impact severity; injury risk; real-life impacts; measurement accuracy; neck injuries; long-term consequences; reconstruction;

    Sammanfattning : The general objectives of this thesis were to study the importance of valid and reliable data from real- life collisions, especially the effects of inaccurate data on analyses of eg injury risks. Furthermore an objective was to develop and validate an on-board measurement device for acceleration measurements, to be used in reconstructions of primarily frontal impacts. LÄS MER