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This paper presents a model of battery powered electric vehicle with computer algorithm for calculation of optimal energy components. The goal of the research was to create a system which can optimize the vehicle battery and motor for the given driving cycle thus minimizing equipment expenses. Furthermore, paper describes tested vehicle, vehicle components modelling, measurement acquisition process,...
Short-term traffic prediction provides tools for improved road management by allowing the reduction of delays, incidents and other unexpected events. Different real-time approaches provide traffic managers with varying but valuable information. This paper reviews the literature regarding model-driven and data-driven approaches focusing on short-term realtime traffic prediction. We start by analyzing...
Innovative method of a real time measuring of drive systems operational parameters is presented. Such systems are commonly used in transportation vehicles working in cooper mines. Cardan shaft with strain gauge bridge was used as autonomous torque transducer, transmitting remotely measuring data in real time to the master system for data acquisition.
Vehicular Ad-hoc Network is gaining the attention of researchers because of the technological advancements for developing an Intelligent Transportation System (ITS). The dynamic nature of vehicles (nodes) leads to frequent path breaks and network fragmentation. Therefore, routing has become a critical issue in inter-vehicle communication. Location management in VANETs is considered as a critical issue...
This research estimates the minimum intervention distance needed for a vehicle to safely avoid an obstacle, while also preventing wheel lift and tire skid. The intervention strategy considered is an open-loop lane change avoidance trajectory. As the vehicle approaches the obstacle, it continually determines the available lane change maneuver, relying on predictions of the Zero-Moment Point (ZMP) metric...
In this paper, we use the NCTUns network simulator to study intelligent traffic signal control algorithms. NCTUns is both a microscopic traffic simulator and a network simulator. We imported the real-life map of a district of the Taipei city into NCTUns to let simulated vehicles move on the roads of the imported map. Then, we used a new and unique feature of NCTUns - each simulated vehicle moves towards...
Vehicular networks are meant to exist wherever the road will take them. This includes small towns, rural highways, suburbs, downtown urban centers, and urban highways. The density of vehicles varies greatly across these environments. This work looks at the effects of implementing Quality of Service (QoS) as well as a relatively similar method that inserts stochastic delays in pseudonym (PN) transmission...
VANET (Vehicular Ad-hoc NETwork) is comprised of devices that are installed inside vehicles and on road sides. Since vehicles can move randomly and at various velocities, the network topology is highly dynamic. Consequently, links between network nodes could be broken at anytime and communications from vehicle to vehicle could be corrupted. For this reason, a routing protocol independent of the network...
Advanced Traveler Information System (ATIS) can provide travelers with real-time traffic information, which will increase the traffic efficiency. An improved information feedback strategy, Weighted Mean Velocity Feedback Strategy (WMVFS) is proposed. With WMVFS, simulation results show that better performance is achieved compared with Mean Velocity Feedback Strategy (MVFS). The mean value of average...
This paper presents performance and fairness analysis of the 802.11p Medium Access Control (MAC) in one-hop periodic broadcast V2V communication used in cooperative driving applications aimed for improving vehicle safety and traffic efficiency. We show that both performance and fairness strongly dependent on the random relative phasing (Φ0) of the vehicles and on the impact of Hidden Nodes (HNs).
Traveling speed of vehicle has a very important effect on the occurrence of road traffic accidents and the harmfulness of the accidents. The speed display error and its distributive regularity would be researched in depth. Based on the combination of speedometer test-bed measurement and statistical analysis, the speed display error and its distributive regularity of given type passenger cars have...
Automated and assisted target recognition (ATR) is an important aspect of an Intelligence Surveillance and Reconnaissance (ISR) system. The role of ATR systems is to detect, classify, recognize and identify targets based on input sensor data from a variety of sources. ATR system performance varies with the quality of the sensor data, the difficulty of the environment being assessed, and the separability...
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