Sökning: "driving pressure"

Visar resultat 11 - 15 av 141 avhandlingar innehållade orden driving pressure.

  1. 11. On Electrohydraulic Pressure Control for Power Steering Applications : Active Steering for Road Vehicles

    Författare :Alessandro Dell'Amico; Petter Krus; Massimo Milani; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis deals with the Electrohydraulic Power Steering system for road vehicles, using electronic pressure control valves. With an ever increasing demand for safer vehicles and fewer traffic accidents, steering-related active safety functions are becoming more common in modern vehicles. LÄS MER

  3. 12. Aerodynamics of two trucks driving in close-proximity

    Författare :Johannes Törnell; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; drag; aerodynamics; cab over engine; inter-vehicle distance; lateral offset; side wind; truck; platooning; yaw; close proximity; wake;

    Sammanfattning : There are several factors driving the development of vehicles with higher efficiency in society, chief among them are the emissions of greenhouse gases and their contribution to global warming. Therefore, there is a strong incentive to improve heavy-duty trucks' energy efficiency, supported by new legislation. LÄS MER

  4. 13. Analysis of the Base Wake on Passenger Vehicles

    Författare :Lennert Sterken; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Pressure measurements; External aerodynamics; Wind tunnel; Wake; Local drag; CFD;

    Sammanfattning : Car manufacturers are presented by a continuous increase in fuel prices and by ever more strict legislations regarding CO2-emissions. Decreasing the driving resistance and hence the fuel consumption of their vehicles helps to improvetheir market share. LÄS MER

  5. 14. Analysis of the Unsteady Flow Field of a Passenger Vehicle

    Författare :Lennert Sterken; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wind tunnel; Wake; CFD; Pressure measurements; Extensions; Yaw response; External aerodynamics; Aerodynamic forces;

    Sammanfattning : Political legislation and consumer requirements for a sustainable society require that vehicle manufacturers focus on reduced fuel consumption and lower emissions. Areduction in the overall energy consumption can be directly linked to a decrease of the driving resistance, where the aerodynamic drag significantly contributes at velocities above 70km/h. LÄS MER

  7. 15. Innovation as Creative Response. Determinants of Innovation in the Swedish Manufacturing Industry, 1970-2007

    Författare :Josef Taalbi; Ekonomisk-historiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Innovation; creative response; structural change; development blocks; transformation pressure; industrial transformation; manufacturing industry; Sweden;

    Sammanfattning : This doctoral thesis examines the driving forces of product innovations in the Swedish manufacturing industry during the period 1970-2007. Specifically it examines whether and how innovations have been the creative response to positive factors, such as new opportunities and obstacles related to their exploitation, and negative factors, such as economic, environmental and organizational problems. LÄS MER