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Hereby an optimal travel path planning and real time forecasting method based on ant colony optimization (ACO) algorithm was proposed. The travel path node network model is established according to the starting position and the destination, and then the shortest time or shortest path planning initial program can be obtained. The optimal travel path is calculated quickly by ACO with the real time traffic...
Position information of vehicles is a vital requirement in most VANETs (Vehicular ad hoc networks) applications. Thus, positioning is one of the critical issues in VANETs. The existing vehicle localization schemes only consider static estimating problem, while little or no attention is paid to the effect of vehicle movement on localization performance. In this paper, we propose a real-timely vehicle...
The invention relates to the sphere of traffic congestion detection, and relates to a traffic congestion detecting system and technique. Vehicles will directly communicate with each other and with infrastructure; a wholly new paradigm for vehicle safety applications will be created. New challenges are created by high vehicle speeds and extremely dynamic operational environments. New necessities, necessitated...
This paper briefly describes the latest achievements of a new functional vehicle system to overcome the range anxiety problem of Fully Electric Vehicles (FEV). This is primarily achieved by integrated control and operation strategies to optimize the driving range. The main focus of these control strategies is cooperated electric drivetrain and regenerative braking system. The diverse source of information...
This paper presents alternative strategy for vehicles localization in urban areas when GPS data are unavailable or have a poor quality due to multi-paths, satellites bad visibility or masks. The presented methods rely on approaches that take profit of a new source of information, which is a virtual 3D city model. The virtual 3D model is used to simulate sensors data such as data from a camera or a...
This paper describes a method using grid technology to improve traffic algorithm efficiency. The method cooperates traffic status estimation algorithm with grid technology. It collects and preprocesses massive real-time data of taxi global positioning system (GPS) as floating car data as well as geographic Information systems (GIS) data of Shanghai urban road network. Then, it adopts grid technology...
The plug-in hybrid electric vehicles (PHEV), utilizing more battery power, has become a next-generation HEV with great promise of higher fuel economy. Global optimization charge-depletion power management would be desirable. This has so far been hampered due to the a priori nature of the trip information and the almost prohibitive computational cost of global optimization techniques such as dynamic...
This paper presents an outdoor geo-localisation method, which integrates several information sources: measurements from GPS, incremental encoders and gyroscope, 2D images provided by an on-board camera and a virtual 3D city model. A 3D cartographical observation of the vehicle pose is constructed. This observation is based on the matching between the acquired 2D images and the virtual 3D city model...
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