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Generation of 3D-Digital Indian Public Road Profile Database and Its Application for Vehicle Development through Road-Vehicle Interaction Study
Abstract:
Design of vehicle for targeted customer usage is one of the key steps during vehicle development process. Due to globalization, most of vehicles, aggregates, components are being designed for global market considering worldwide load spectrum. Generally for doing this the vehicle response is being measured for different markets but this process is very time consuming. Also for getting these vehicle dependent parameters, exercises need to be repeated on each type/class of vehicle. So there is a need to have a robust procedure, tools which will helps OEM’s to predict the loads, vehicle response for different market segments at an early stage of vehicle development program using the inputs which are vehicle independent. The solution for this could be to use vehicle independent input such as digitized road profiles (2D or 3D) of target customer markets in combination with proper MBD simulation tools.
This paper discuss about methodology used for generation of the 3D digital Indian road profile database and its applications in vehicle development. The paper elaborates on the methodology , process developed for measurement and the generation of vehicle independent 3D (X-Y-Z grid) digital road profile database (in .CRG/.RGR format) of typical Indian roads using LiDAR (Light Detection And Ranging) based laser sensors. Also various features of 3D public road profiles and its effect on vehicle response through Multi Body Dynamics (MBD) simulation are studied. The different applications of generated public 3D road profile database for vehicle design development are also discussed.
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