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| Determination of Safety Speed of Different Radii based on TruckSim |
| TANG Ge-teng, REN Chun-xiao, LI Chen, DONG Xuan |
| Key Laboratory of Operation Safety Technology on Transport Vehicles, Ministry of Transport, Beijing 100088, China |
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Abstract The accuracy of safety speed is insufficient because the grandeur of a vehicle is oversimplified by the curve-safety-speed calculation method, which plays a core decision-making role in the current curve-speed warning control system. Based on the nonlinear characteristic of tire and dynamic stiffness of suspension, the vehicle dynamic model with TruckSim was built by using an 8-meter-long full-load bus as the research object. The orthogonal simulation experiment of driving speed to different radii was conducted, and the mathematical response surface model of safety speed to curve radius was established. Finally, the critical speeds of the mathematical model calculation and the simulation test were compared under the same bend radius. Results show that the mathematical response surface model is a reasonable and accurate calculation method for calculating the safety speed of a vehicle that is turning on a curve. This model benefits the enhancement of vehicle active safety control technology.
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Received: 27 September 2016
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| Fund:Supported by the Fundamental Research on Road Transportation Safety Management(No. 2013312223270) |
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Corresponding Authors:
TANG Ge-teng,E-mail address:tanggeteng@163.com
E-mail: tanggeteng@163.com
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2017, Vol. 11 
