期刊
ADVANCES IN ENGINEERING SOFTWARE
卷 132, 期 -, 页码 65-73出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.advengsoft.2019.03.007
关键词
Intelligent vehicle; Bezier curve; Lane changing; Path planning; Velocity planning
类别
资金
- National Natural Science Foundation of China [U1564201]
- Primary Research & Development Plan of Jiangsu Province [BE2016149]
A novel path and velocity planning method for lane changing collision avoidance of intelligent vehicle based on cubic 3-D Bezier curve is proposed in this paper to enhance the flexibility of path and guarantee the conformity to the realistic lane changing maneuver. Owing to the characteristic of 3-D Bezier curve, the velocity information is appended to the path to establish a real-time correspondence between them. In the XY plane, the integrated path is divided into a collision avoidance path and a lane changing path, which is combined with two asymmetrical Bezier curves. And the velocity planning of two paths is implemented by the same curve in the Z axis. The objective functions and dynamic constraints are formulated to solve the optimal problems of the path and velocity planning for satisfying different traffic situations. The simulations are performed in the CarSim-Simulink co-simulation platform and the results show the performance and effectiveness of the proposed approach.
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