Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 33 for “"platooning"”.
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Safe and Efficient Communication Protocols for Platooning Control
… to design a vehicular application called “platooning†. Platooning simultaneously tackles safety and traffic congestion problems by cooperatively coordinating vehicles in an autonomous way. Traffic flow is optimized by using an advanced Adaptive Cruise Control (ACC), called Cooperative …
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Optimized and energy-efficient cooperative platooning for autonomous vehicles
… This thesis investigates energy-efficient platooning of Connected and Autonomous Vehicles(CAVs) in simulation frameworks using energy modelling. A lightweight physics-based energy model was integrated into a framework to capture kinematics data, such as aerodynamic drag and inertial …
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Bi-stability in the Wakes of Platooning Ahmed Bodies
… bluff body. At the same time, studies of platooning Ahmed bodies have focused on changes to the body forces and moments at different following distances or lateral offsets, typically based around time-averaged measurements or steady-state CFD. The present study attempts to understand the …
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Cooperative Clothoidal-Estimation Based Lane Detection For Vehicle Platooning
Vehicle platooning is an advanced vehicle maneuver that allows for the simultaneous control of several vehicles traveling on the roadway cite{al2010experimental}. Automated platoons, when activated in tractor trailer convoys, have a high potential of increasing the fuel efficiency and improving the …
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Time Headway and Platooning Characteristics of Vehicles on Interstate Highways
Mean time headway for platooning vehicles decreased as traffic volume increased. About 18% to 31% of platooning vehicles had a space gap that corresponds to a reaction time of 0.5 second or less, with more than half of these in large platoon of 5 vehicles or more. About 15% to 85% of platooning …
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Stability and String Stability Analysis of Formation Control Architectures for Platooning.
… stability of formation control architectures for platooning. We consider three important interconnection topologies for vehicles travelling in a straight line as a string: leader following, cyclic and bidirectional. For the leader following topology we discuss modifications that allow reduced …
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Resilient operations of smart highways : platooning, ramp metering, and incident management
… poised to enable advanced capabilities such as platooning and vehicle-to-infrastructure communications. On one hand, these advancements offer new opportunities for improving the operational efficiency of highway systems. On the other hand, most highway system operators still face significant …
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Analysing the proposed communication protocol for multi-brand truck platooning in Europe
In platooning multiple vehicles are organized in convoys driving autonomously with a minimized safety gap. In order to support the global deployment of platooning, an integrated multi-brand approach is required. The European HORIZON 2020 project ENSEMBLE tries to address this issue by unifying and …
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Adaptive Longitudinal and Lateral Control for Autonomous Vehicles: High-Speed Platooning of Articulated Trucks
… enabling seamless operation in automated platooning scenarios. This integration requires adapting the longitudinal controller to curved trajectories using arc length-based calculations. Comprehensive simulations, including challenging trajectories such as dual lane changes, and actual …
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Optimization of lateral position of autonomous truck platoons to improve roadway infrastructure sustainability
… “resting period”) is particularly reduced for platooning CATs. Therefore, we need a new pavement design framework to quantify the effects of CATs on pavement structures. This dissertation first addresses this gap by developing a new pavement design framework for CATs. This framework may allow …
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Highway work zone capacity estimation using field data from Kansas
… Observed 15-minute Flow Rate Method and the Platooning Method divided into 15-minute intervals. The Maximum Observed 15-minute Flow Rate Method provided an average capacity of 1469 passenger cars per hour per lane (pcphpl) with a standard deviation of 141 pcphpl, while the Platooning Method …
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Design of a cooperative overtaking algorithm for platoons on freeways
Platooning can improve road safety, optimize traffic flow, and raise the driver’s comfort. However, when a platoon is stuck behind a slower vehicle, the total travel time is significantly increased. Overtaking as a whole platoon is a complicated maneuver and there is no communication-based …
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External communication displays for connected truck platoons in mixed traffic : a federated simulator study
Truck platooning is anticipated to be the first widespread deployment of connected or automated vehicles (CAV). In addition to familiarizing the public with the function of CAV, a truck platoon has proven benefits to fuel consumption by minimizing drag. These are the primary motivations that have …
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Specification and verification of dynamic topology systems: on the applicability of query- and data-type-reduction-based abstractions
… prominent example is distributed control of car platooning, where each cars is seen as a single embedded system. We address the need of formal verification for such critical systems by investigating a certain abstraction technique known for parameterised systems. To this end, we propose a new …
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LightMARL : smart swarm coordination in urban spaces
… environments, including drone swarms, vehicle platooning, and sensor networks, demonstrates the framework’s effectiveness. This study illustrates that complex multi-agent coordination is possible on edge devices, enabling new applications in autonomous functionality.
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Fractional Order State Feedback Control for Improved Lateral Stability of Semi-Autonomous Commercial Heavy Vehicles
… larger three-axle commercial heavy vehicles in platooning operations. To validate the proposed new control algorithm, the system is linearized and a fractional order PI state feedback control is developed based on the linearized model. Then using Matlab/Simulink, the developed fractional-order …
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