7,622 research outputs found
Real scenario and simulations on GLOSA traffic light system for reduced CO2 emissions, waiting time and travel time
Cooperative ITS is enabling vehicles to communicate with the infrastructure
to provide improvements in traffic control. A promising approach consists in
anticipating the road profile and the upcoming dynamic events like traffic
lights. This topic has been addressed in the French public project Co-Drive
through functions developed by Valeo named Green Light Optimal Speed Advisor
(GLOSA). The system advises the optimal speed to pass the next traffic light
without stopping. This paper presents results of its performance in different
scenarios through simulations and real driving measurements. A scaling is done
in an urban area, with different penetration rates in vehicle and
infrastructure equipment for vehicular communication. Our simulation results
indicate that GLOSA can reduce CO2 emissions, waiting time and travel time,
both in experimental conditions and in real traffic conditions.Comment: in 22nd ITS World Congress, Oct 2015, Bordeaux, France. 201
VANET Applications: Hot Use Cases
Current challenges of car manufacturers are to make roads safe, to achieve
free flowing traffic with few congestions, and to reduce pollution by an
effective fuel use. To reach these goals, many improvements are performed
in-car, but more and more approaches rely on connected cars with communication
capabilities between cars, with an infrastructure, or with IoT devices.
Monitoring and coordinating vehicles allow then to compute intelligent ways of
transportation. Connected cars have introduced a new way of thinking cars - not
only as a mean for a driver to go from A to B, but as smart cars - a user
extension like the smartphone today. In this report, we introduce concepts and
specific vocabulary in order to classify current innovations or ideas on the
emerging topic of smart car. We present a graphical categorization showing this
evolution in function of the societal evolution. Different perspectives are
adopted: a vehicle-centric view, a vehicle-network view, and a user-centric
view; described by simple and complex use-cases and illustrated by a list of
emerging and current projects from the academic and industrial worlds. We
identified an empty space in innovation between the user and his car:
paradoxically even if they are both in interaction, they are separated through
different application uses. Future challenge is to interlace social concerns of
the user within an intelligent and efficient driving
Research and innovation in smart mobility and services in Europe: An assessment based on the Transport Research and Innovation Monitoring and Information System (TRIMIS)
For smart mobility to be cost-efficient and ready for future needs, adequate research and innovation (R&I) in this field is necessary. This report provides a comprehensive analysis of R&I in smart mobility and services in Europe. The assessment follows the methodology developed by the European Commissionâs Transport Research and Innovation Monitoring and Information System (TRIMIS). The report critically assesses research by thematic area and technologies, highlighting recent developments and future needs.JRC.C.4-Sustainable Transpor
High-speed autonomous navigation system for heavy vehicles
This paper presents techniques for GPS based autonomous navigation of heavy
vehicles at high speed. The control system has two main functions: vehicle position
estimation and generation of the steering commands for the vehicle to follow a given path
autonomously. Position estimation is based on fusion of measurements from a carrier-phase
differential GPS system and odometric sensors using fuzzy logic. A Takagi-Sugeno fuzzy
controller is used for steering commands generation, to cope with different road geometry
and vehicle velocity. The presented system has been implemented in a 13 tons truck, and
fully tested in very demanding conditions, i.e. high velocity and large curvature variations in
paved and unpaved roads
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