Sökning: "Braking"

Visar resultat 21 - 25 av 178 avhandlingar innehållade ordet Braking.

1. 21. Volunteer Muscle Activity in Dynamic Events. Input Data for Human Body Models

   Författare :Jóna Marin Olafsdottir; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; emergency braking; ative human body model; multidirectional perturbations; EMG; occupant kinematics; seatbelt pre-tension; reflex; validation data;

   Sammanfattning : Human body models (HBMs) are virtual human surrogates used to predict kinematic and injury responses during motor vehicle crashes. In recent years, active musculature has been incorporated into HBMs for enhanced biofidelity in simulated emergency scenarios, in particular low-severity crashes and pre-crash situations, where occupant responses are influenced by muscle tension. LÄS MER

3. 22. Optimal Braking Patterns and Forces in Autonomous Safety-Critical Maneuvers

   Författare :Victor Fors; Lars Nielsen; Björn Olofsson; Jan Åslund; Mathias Lidberg; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : The trend of more advanced driver-assistance features and the development toward autonomous vehicles enable new possibilities in the area of active safety. With more information available in the vehicle about the surrounding traffic and the road ahead, there is the possibility of improved active-safety systems that make use of this information for stability control in safety-critical maneuvers. LÄS MER

4. 23. On Transient Communication Outages among Collaborating Connected and Automated Vehicles

   Författare :Shahriar Hasan; Elisabeth Uhlemann; Svetlana Girs; Javier Manuel Gozalvez Sempere; Mälardalens universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ACC; CACC; Communication Systems; Systems-of-systems; Fault tolerance; fail-operational; fail-safe; transient communication outages; platooning; connected and automated vehicles; V2V; V2X; emergency braking; collision avoidance; string stability; machine learning; artificial intelligence; ML AI; X-AI; communication delays; discrete-even simulations; SUMO; PLEXE; Veins; OMNeT ; PlatoonSAFE; Computer Science; datavetenskap;

   Sammanfattning : Recent advances in wireless technology facilitating Vehicle-to-Vehicle (V2V) communication have paved the way towards connected and more cooperative Intelligent Transportation Systems (ITSs), enhancing road safety and sustainability. Connected and Automated Vehicles (CAVs) can exchange information with one another and their surrounding infrastructure, thereby enabling cooperative automated maneuvering such as vehicle platooning. LÄS MER

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

   Författare :Ali Esmaeili; Chalmers tekniska högskola; []
   Nyckelord :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;

   Sammanfattning : 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. LÄS MER

7. 25. Safety of Cooperative Automated Driving : Analysis and Optimization

   Författare :Galina Sidorenko; Alexey Vinel; Johan Thunberg; Elisabeth Uhlemann; Högskolan i Halmstad; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; platooning; Cooperative Intelligent Transportation System C-ITS ; Vehicle-to-Vehicle V2V communication; emergency braking; road safety; ITS-G5; IEEE 802.11p; automated driving;

   Sammanfattning : New cooperative intelligent transportation system (C-ITS) applications become enabled thanks to advances in communication technologies between vehicles(V2V) and with the infrastructure (V2I). Communicating vehicles share information with each other and cooperate, which results in improved safety, fuel economy, and traffic efficiency. LÄS MER