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Showing result 1 - 5 of 8 swedish dissertations matching the above criteria.

2. 1. On the interaction between driver assistance systems and drivers in situations of system failure

   Author : Josef Nilsson; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; adaptive cruise control; Chalmers driving simulator; automotive safety; controllability; driver assistance systems; functional safety; dependability; brake failure; fault injection;

   Abstract : The level of automation is increasing in road vehicles as driver assistance systems take control of both speed and steering. Benefits of this development are expected in the form of improved safety, driver comfort, traffic efficiency, etc. READ MORE

4. 2. Safe Transitions to Manual Driving From Faulty Automated Driving System

   Author : Josef Nilsson; RISE; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Driver takeover; functional safety; automated driving; safety; vehicle automation; driver capability; brake failure; controllability; driving simulator.;

   Abstract : This thesis presents a method to assess the safety of transitions from automated to manual driving when vehicle automation fails. The method is based on contributions to the understanding of human driving behavior, also presented in this thesis. READ MORE

5. 3. Modelling of cyclic and viscous behaviour of pearlitic steels. Application to tread braked railway wheels

   Author : Ali Esmaeili; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Railway wheels; viscoplasticity; tread braking; rolling contact fatigue; full-scale brake rig testing; finite element analysis; plasticity;

   Abstract : Railway wheel and rail materials are subjected to very high stresses and, in some cases, also elevated temperatures. The rolling contact loading results in a multiaxial stress state with a combination of compression and shear. READ MORE

6. 4. When Driving Automation Fails. Drivers' Experiences and Interactions

   Author : Niklas Strand; Chalmers tekniska högskola; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HMI; simulator studies; driver behavior; Automated driving; automation failures;

   Abstract : Drivers’ interactions with automation based on experiences from real driving, and results from driving simulators were under investigation in this thesis. The thesis had a mixed methods research approach and was exploratory. Special attention has been given to driver behavior on exposure to unexpected automation failures. READ MORE

7. 5. On the Influence of Rail Vehicle Parameters on the Derailment Process and its Consequences

   Author : Dan Brabie; Evert Andersson; Johan Oscarsson; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; train; railway; rail vehicle; accident; incident; derailment; bogie design; simulation; wheel; sleeper; impact; Vehicle engineering; Farkostteknik;

   Abstract : This thesis aims at systematically studying the possibilities of minimising devastatingconsequences of high-speed derailments by appropriate measures and features in thetrain design, including the running gear. The course of events immediately afterderailments is studied with respect to whether the train stays upright and close to thetrack centre line or deviates laterally with probably serious consequences. READ MORE