Citation

Shao YM, Mao JC, Liu SC, Xu J. J. Traffic Transp. Eng. (Xi'an, Shaanxi) 2011; 11(1): 79-88.

Copyright

(Copyright © 2011, Chang'an Daxue)

DOI

unavailable

PMID

unavailable

Abstract

The relationship between road geometric characteristic and driving speed was analyzed based on driving experiments and observation data on highways. The mathematic models of acceleration, deceleration and driver's speed control behavior on curve, entering or leaving curve, driving on tangent were obtained, and desired speed profiles along road were generated by the models. A car dynamics model was created by using mechanical dynamics analysis software ADAMS, roadway module was developed by using VB6.0, driver module was developed by using VC++7.0. At the simulation beginning, desired speed and desired path were generated, the car followed them in preview strategy, and the autonomous driving of car was achieved. Simulation result shows that desire speed and desired path change in a same trend with actual driving speed and path. Desired speed can be as the objective for car to follow, it adapts car dynamics characteristics, and can guide the driving of car on complex mountain highways safely.