Sökning: "safety engineering"

Visar resultat 1 - 5 av 1020 avhandlingar innehållade orden safety engineering.

  1. 1. Computational Verification Methods for Automotive Safety Systems

    Detta är en avhandling från Chalmers University of Technology

    Författare :Jonas Nilsson; Chalmers tekniska högskola.; Chalmers University of Technology.; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Automotive; Active Safety; Semi-Autonomous Vehicles; Verification; Performance Evaluation; Decision Making; Augmented Reality;

    Sammanfattning : This thesis considers computational methods for analysis and verification of the class of automotive safety systems which support the driver by monitoring the vehicle and its surroundings, identifying hazardous situations and actively intervening to prevent or mitigate consequences of accidents. Verification of these systems poses a major challenge, since system decisions are based on remote sensing of the surrounding environment and incorrect decisions are only rarely accepted by the driver. LÄS MER

  2. 2. Lithium-ion Battery Safety - Assessment by Abuse Testing, Fluoride Gas Emissions and Fire Propagation

    Detta är en avhandling från Chalmers University of Technology

    Författare :Fredrik Larsson; Chalmers tekniska högskola.; Chalmers University of Technology.; [2017]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; thermal runaway; Lithium-ion; gas emission; fire; gas explosion; hydrogen fluoride; cell case explosion; safety; abuse testing; propagation;

    Sammanfattning : Lithium-ion batteries offer high energy and power densities as well as long life time but have a more narrow stability window compared to other battery types and contain reactive and flammable materials. In case of overheating the battery cell can release gas (vent) and, at temperatures of about 150-200 °C, a so called thermal runaway can occur, that is a rapid self-heated temperature increase which is typically accompanied with a large release of smoke and gas, fire and a potential cell case explosion or gas explosion. LÄS MER

  3. 3. On Performance Evaluation of Automotive Active Safety Systems

    Detta är en avhandling från Chalmers University of Technology

    Författare :Jonas Nilsson; Chalmers tekniska högskola.; Chalmers University of Technology.; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bildanalys; Image analysis; Reglerteknik; Automatic control; Signalbehandling; Signal processing; Farkostteknik; Vehicle engineering; Automotive; Decision Making; Active Safety; Semi-Autonomous Vehicles; Verification; Performance Evaluation; Augmented Reality.;

    Sammanfattning : Road traffic accidents are a major global problem, annually causing over 1.2 million fatalities. To improve road safety, active safety systems support the driver by monitoring the vehicle and its surroundings, identifying hazardous situations and actively intervening to prevent or mitigate consequences of accidents. LÄS MER

  4. 4. Advances In Heavy Vehicle Dynamics with Focus on Engine Mounts and Individual Front Suspension

    Detta är en avhandling från Chalmers University of Technology

    Författare :Hoda Yarmohamadi; Chalmers tekniska högskola.; Chalmers University of Technology.; [2012]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; heavy vehicle; individual front suspension; comfort; handling; kinematics; semi-active damper; engine mount; nonlinear dynamic stiffness and damping; vibration isolation; adaptronic mounting system;

    Sammanfattning : The main objective of the research presented in this thesis is to enhance driver comfort and handling of a heavy truck that in turn leads to better vehicle safety and stability. The focus has been put on studying two suspension systems of the truck, engine and front axle suspensions, due to their significant impact on the dynamic performance of the vehicle. LÄS MER

  5. 5. Antenna Evaluation for Vehicular Applications in Multipath Environment

    Detta är en avhandling från Chalmers University of Technology

    Författare :Edith Condo Neira; Chalmers tekniska högskola.; Chalmers University of Technology.; [2017]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LTE.; V2V simulations; IEEE 802.11p; V2V measurements; Vehicular antenna evaluation; multipath environment; V2V;

    Sammanfattning : Antennas are essential components in any wireless communication system. Toevaluate them is challenging, especially when new technologies are emerging.Future intelligent transport systems, where vehicular communications playan important role will cover important aspects such as traffic safety and trafficefficiency. LÄS MER