3D-Track is an innovative methodology for mobile, precise, high-resolution topology and roughness measurements of any type of road surface (asphalt as well as rough roads on public roads, proving grounds or race tracks). The methodology is based on 3 sub-systems, which are mounted onto the vehicle being measured. A line, which is projected onto the track's surface, is scanned by a high-speed camera. The generated data is then evaluated regarding the height, relative to the road surface. The biggest challenges are in the compensation of unwanted vertical vehicle movement and generating a real 3D-Track in the earth-referenced coordinate system. This is achieved by an inertial system (IMU - Initial Measurement Unit), which is supported by a D-GPS (Differential Global Positioning System). The post-processing method applies complex algorithms to generate the precise virtual 3D-Track, with high longitudinal and transversal resolution. This virtual 3D-Track can then be positioned within the earth-referenced coordinate system. The measurements are used to create virtual 3D tracks for various applications in product development or racing environments, such as simulations, determination of circuit characteristics, track condition checks, etc. For any vehicles, 3DTrack opens up new possibilities of researching road influences on the vehicle and tires with respect to ride, performance and noise. Similar applications are possible for off-road vehicles. 3D-Track is unique because it combines quick measurements with high-resolution images. The measurements can even be made on public roads in moving traffic. Performance profile: High horizontal resolution up to macro-structure (5 mm grid) is possible. 3D-Track can measure high track wave length range from 2 cm up to 200 m. The highest 3D vertical precision is 1 mm resolution. Short measurement times due to high speed up to 80 km/h are possible. Innovative 3D-Track measurement system benefits a wide range of users. The measuring methodology and prototype technology providing the basis for 3D-Track originate from DaimlerChrysler Research. TÜV Automotive has developed this technology for industrial use. By rolling out this system to customers (vehicle and tire manufacturers, component and system suppliers), TÜV Automotive addresses the industry's need for true-todetail road and track models. In the world of racing, circuit operators, race teams, simulation teams and measuring teams, etc. benefit from this new technology. Key benefits of 3D-Track: Significantly improved and more realistic road models for simulations of ride, comfort, handling, fatigue limit and test rig simulations with track profiles; New potentials for driving dynamics simulations and tire model development; Qualification of circuits; Improved referencing of simulation to real-world roads / circuits.


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    Titel :

    3D-TRACK - give the simulation the chance for a better work! mobile, high-resolution topology and roughness measuring of road surfaces to create 3D track models


    Beteiligte:
    Schicke, Bernhard (Autor:in) / Gimmler, Helmut (Autor:in) / Rauh, Jochen (Autor:in) / Witschass, Steffen (Autor:in)


    Erscheinungsdatum :

    2006


    Format / Umfang :

    10 Seiten, 8 Bilder, 6 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch





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