Safety speeds estimation, as an indispensable link in the development of the aided or automatic drive, receives wide attention recently. Due to uncertain disturbances of vehicle driving, it is a challenging task to estimate the safety speed credibly. This work proposes a modified estimation approach to predict the turning safety speed by combining the static drive safety evaluation with the dynamic vehicle speed calculation. First, the driving safety state is evaluated considering the coupling of driver-vehicle-road-environment, where a comprehensive evaluation is obtained by combing the analytic hierarchy process and entropy weight analysis method. Then, a turning critical speed is calculated based on the vehicle driving dynamics considering both sideslip and rollover. The estimation of turning safety speed is achieved by modifying the critical speed with a safety correction factor obtained from the driving safety state evaluation. Finally, cases discussion on driving safety states evaluation, as well as the critical speed verification and safety speed analysis, are carried out. The results verify the validity of the driving safety state evaluation and critical speed calculation. The safety speeds have a reasonable safety margin according to the driving safety state evaluation. The maximum differences between the safety speeds and critical speeds are about 26.45% for buses and 26.39% for cars under low adhesion conditions, showing sufficient reliability for safety speed estimation.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Study on the safety speed of vehicle turning with considering the driving safety evaluation


    Contributors:
    Xian, Qu (author) / Feng, Yu (author) / Jinlong, Zhang (author) / Jun, Xie (author)


    Publication date :

    2022-10-01


    Size :

    13 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Driving safety evaluation method considering early warning information and vehicle running track

    ZHANG XUXIN / CUI HAIPENG | European Patent Office | 2023

    Free access

    Vehicle turning safety assisting system

    YAN SHIRONG / WENG CAIEN | European Patent Office | 2015

    Free access

    LARGE VEHICLE TURNING SAFETY WARNING APPARATUS

    CHING YA-CHI | European Patent Office | 2023

    Free access

    LARGE VEHICLE TURNING SAFETY WARNING APPARATUS

    CHING YA-CHI | European Patent Office | 2020

    Free access

    LARGE VEHICLE TURNING SAFETY WARNING APPARATUS

    CHING YA-CHI | European Patent Office | 2020

    Free access