The invention relates to a tunnel section automatic driving safety speed determination method based on support vector regression. The method comprises the following steps: S1, obtaining automatic driving sight distance related information, tunnel section design information and weather environment information; s2, the information obtained in the step S1 is utilized, a virtual test method is adopted to obtain the effective sight distance of tunnel section automatic driving, and an available sight distance database is constructed; s3, based on the available sight distance database constructed in the step S2, extracting automatic driving available sight distance characteristic parameters by adopting principal component analysis; s4, establishing an automatic driving available sight distance model based on a support vector machine regression method by using the automatic driving available sight distance characteristic parameters extracted in the step S3; and S5, based on the automatic driving available sight distance model established in the step S4, calculating the tunnel section automatic driving safety speed according to a sight distance safety principle. According to the method, the speed value meeting the automatic driving safety driving requirement of the tunnel section can be effectively obtained, and then the safety of automatic driving is improved.

    本发明涉及一种基于支持向量回归的隧道段自动驾驶安全速度确定方法,包括以下步骤:S1、获取自动驾驶视距相关信息、隧道段设计信息与天气环境信息;S2、利用步骤S1获取的信息,采用虚拟测试方法获取隧道段自动驾驶有效视线距离并构建可获取视距数据库;S3、基于步骤S2构建的可获取视距数据库,采用主成分分析提取自动驾驶可获取视距特征参数;S4、利用步骤S3提取的自动驾驶可获取视距特征参数,基于支持向量机回归方法建立自动驾驶可获取视距模型;S5、基于步骤S4建立的自动驾驶可获取视距模型,根据视距安全原则计算隧道段自动驾驶安全速度。该方法有利于有效获取满足隧道段自动驾驶安全行驶要求的速度值,进而提高自动驾驶的安全性。


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    Title :

    Tunnel section automatic driving safety speed determination method based on support vector regression


    Additional title:

    基于支持向量回归的隧道段自动驾驶安全速度确定方法


    Contributors:
    WANG SHUYI (author) / LAI YUANWEN (author) / LI LI (author) / QIU XUNTAO (author)

    Publication date :

    2023-09-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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