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Driver-in-the-loop and different human-machine goal consistency should be considered when designing driver-AFS interactive steering control system. In this paper, a novel design approach, namely dynamic game theory is used for the modelling of shared steering control between driver and AFS. Linear Quadratic dynamic optimization approach is used to derive the non-cooperative Nash, non-cooperative Stackelberg,...
As urban populations grow, cities face many challenges related to transportation, resource consumption, and the environment. Ride sharing has been proposed as an effective approach to reduce traffic congestion, gasoline consumption, and pollution. However, despite great promise, researchers and policy makers lack adequate tools to assess the tradeoffs and benefits of various ride-sharing strategies...
The world has recently witnessed a great tendency towards rapid urban development. This has been accompanied by an increase in the population and a development in the uses of the land, which changes the reality of transport and increases its problems over time. The city of Mansour suffers from traffic jams in certain parts of its road network due to the increase in population and the shift in the...
Images projected from HUD (Head-up Display) are always overlaid with moving background scene. In such cases, drivers suffer from understanding instinctively the HUD information. Visibility enhancement of HUD information is very important for drivers to recognize easily and quickly the information. In this paper, we propose two visibility enhancement methods of HUD image, which are based on the dominant...
This study presents an ACC (Adaptive Cruise Control)-based traffic control strategy which aims to adapt in real time the driving behavior of ACC-equipped vehicles to the prevailing traffic conditions so that the motorway traffic flow efficiency is improved. The potential benefits obtained by applying the proposed control concept are demonstrated for different ACC penetration rates by use of validated...
A combat vehicle simulator is the first complex drive-simulator developed at the University of Pardubice. It consists of dozens of complementary simulators and simulation calculations. The whole simulator is created on a modified implementation of a game engine. That has resulted in a high-quality graphic processing, based on a hybrid kernel of the simulator (discrete-continuous simulation), which...
This paper aims at proposing an improved generalized dynamic rollover threshold of multi-axial vehicles based on lateral load transfer ratio (LTR) and providing the foundation for rollover prediction. The study is carried out by utilizing vehicle handling dynamics to build a vehicle rollover model, which takes into account the characteristics of suspension and limit equilibrium of tires' lifting-off...
In the present times energy saving is one of the most challenging tasks, faced by the modern society. The automotive industry experiences it to a very high extent, not only because of the obvious facts about consuming fossil fuels (which are limited), but also because it attracts common attention of the society itself. The automotive industry is being forced by the authorities to limit the fuel consumption...
In this paper, we present an analysis of the correlation between the driving efficiency of drivers and traffic congestions on a highway. An agent-based model of highway traffic is used, where individual drivers are represented by agents undergoing single-lane unidirectional motion on a highway. In the proposed model, changes in the agent-modelling rules are able to simulate behavioural changes in...
Vehicles in the near future will be equipped with dedicated short-range communications (DSRC) transceiver which holds great promise of significantly reducing vehicle collisions by enabling vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communications. In addition, modern vehicles will be equipped with different on-board sensors such as GPS receivers and ranging sensors (e.g., cameras,...
Characterizing the channel for vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communications in the 5 GHz frequency band is of great interest within the increasingly growing field of intelligent transportation systems. In this study, we determine the Doppler shift effect in a simulation scenario with a V2I path loss model and various V2V channel models. The existence of both Doppler...
This paper aims to present a methodology that helps improving systems modelling by using Process Integration and Design Optimization technologies. Then, the methodology has been applied on an automotive case study: the improvement of the hybrid vehicle TOYOTA PRIUS III modelling. This work has been carried out in the context of the international research program PLACIS (PLAteforme Collaborative d'Ingénierie...
Platooning is an important mechanism to increase the capacity of roads and the efficiency of driving. Vehicular ad hoc networks (VANETs) can enhance the performance of platoons. In this paper, a novel mechanism that selects a leader vehicle autonomously for a platoon based on relative mobility information of vehicles is proposed for overcoming the restriction on vehicles and for facilitating platoons...
The VANET (Vehicular Ad hoc Network) is a collection of mobile nodes forming a temporary network on variable topology, operating without base station and without centralized administration. The characteristics of VANET network that distinguishes it from other ad hoc networks, such as high mobility and communication with the infrastructure to support security or comfort applications, have prompted...
The primary goal of this paper is to investigate what could have made successful Google's OpenSpot, a crowdsensing based parking assistance application cancelled in 2012. For this analysis we have developed UPark, a simulation environment capable of simulating large numbers of vehicles, which look for optimal parking spots in busy urban environments and whose drivers might inform others when they...
For good electrical and thermal performance, exposed pad QFP is created. The exposed pad under the QFP acts as a ground connection and a heat sink, which is soldered on the ground plane of PCB. High soldering rate provides wide runner for both electric current and heat. However, there has low SMT process yield for this kind of packages. It's found out that the main root cause is that numerous solder...
NASA has engaged in collaborative research with the FAA and many other stakeholders in government, industry, and academia to explore the concepts and requirements necessary to enable the safe and scalable application of small unmanned aircraft systems (UAS) in low-altitude airspace. In this effort, the UAS Traffic Management (UTM) project has developed a multi-faceted simulation component that supports...
The moving-block system under ERTMS Level 3 represents a continuous detection of train positions, and continuous infrastructure-to-train communication. This allows trains to follow one another in smaller space and time headways than possible in fixed-block systems. Trains form platoons with undisturbed headways and uniform speeds in moving-block systems, with improved safety and increased capacity...
In this work a distributed algorithm for the optimization of signal setting on urban network is proposed. The Traffic Signal Synchronization is a traffic engineering technique of matching the green light times for a series of intersections to enable the maximum number of vehicles to pass through, thereby reducing stops and delays experienced by motorists. Synchronizing Traffic Signals ensures a better...
In this work an algorithm for the optimization of signal setting on urban network is proposed. Signal setting are designed based on a given flow in the network. However, the flow in the network is also influenced by the route choice decisions. This paper deals with traffic signal setting with demand assignment. All approaches proposed in literature to address this problem are based on equilibrium...
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