汽车工程 ›› 2022, Vol. 44 ›› Issue (7): 1040-1048.doi: 10.19562/j.chinasae.qcgc.2022.07.010

所属专题: 智能网联汽车技术专题-规划&控制2022年

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狭小车位平行泊车路径规划方法研究

胡杰1,2,3(),朱令磊1,2,3,陈瑞楠1,2,3,钟鑫凯1,2,3,徐文才1,2,3,张敏超1,2,3   

  1. 1.武汉理工大学,现代汽车零部件技术湖北省重点实验室,武汉  430070
    2.武汉理工大学,汽车零部件技术湖北省协同创新中心,武汉  430070
    3.新能源与智能网联车湖北工程技术研究中心,武汉  430070
  • 收稿日期:2022-01-18 修回日期:2022-02-04 出版日期:2022-07-25 发布日期:2022-07-20
  • 通讯作者: 胡杰 E-mail:auto_hj@163.com
  • 基金资助:
    湖北省技术创新专项(2019AEA169);湖北省科技重大专项(2020AAA001)

Research on Parallel Parking Path Planning Method for Narrow Parking Space

Jie Hu1,2,3(),Linglei Zhu1,2,3,Ruinan Chen1,2,3,Xinkai Zhong1,2,3,Wencai Xu1,2,3,Minchao Zhang1,2,3   

  1. 1.Wuhan University of Technology,Hubei Key Laboratory of Modern Auto Parts Technology,Wuhan  430070
    2.Wuhan University of Technology,Auto Parts Technology Hubei Collaborative Innovation Center,Wuhan  430070
    3.Hubei Technology Research Center of New Energy and Intelligent Connected Vehicle Engineering,Wuhan  430070
  • Received:2022-01-18 Revised:2022-02-04 Online:2022-07-25 Published:2022-07-20
  • Contact: Jie Hu E-mail:auto_hj@163.com

摘要:

针对狭小车位平行泊车场景,本文中提出了一种基于曲线组合和数值优化的规划方法。首先,将泊车过程逆向化并划分为调整规划和入库规划,通过建立基于回旋-圆弧组合的约束优化模型设计调整规划,引导车辆库内调整位姿寻找出库关键点,建立基于回旋-圆弧-直线组合和五次多项式的约束优化模型设计入库规划,引导车辆寻找最佳泊车点;随后,通过Matlab针对不同工况进行仿真,验证算法的适应性;最后,通过实车试验验证规划路径的有效性。仿真和实车试验的结果表明,本文提出的平行泊车路径规划方法满足狭小泊车空间下的泊车需求,同时具有较强的适应性。

关键词: 路径规划, 自动泊车, 数值优化, 曲线组合

Abstract:

Aiming at the parallel parking scenes for narrow parking space, a parking planning method based on curve combination and numerical optimization is proposed in this paper. Firstly, the parking process is reversed and divided into two stages: adjustment planning and berth entering planning. The adjustment planning is devised by establishing a constraint optimization model based on clothoid-arc combination, to guide the vehicle to adjust its position and posture in the berth to find the key points of leaving, while the berth entering planning is devised by setting up a constraint optimization model based on a clothoid-arc-line combination and a quintic polynomial to guide the vehicle to find the best parking point. Then, a simulation is carried out on different working conditions with Matlab to validate the adaptability of the algorithm. Finally, real vehicle test is conducted to verify the effectiveness of the planned path. The results of simulation and real vehicle test show that the parallel parking path planning method proposed can meet the parking requirements in a narrow parking space with strong adaptability.

Key words: path planning, automatic parking, numerical optimization, curve combination