Automated driving in urban settings is challenging. Human participant behavior is difficult to model, and conventional, rule-based Automated Driving Systems (ADSs) tend to fail when they face unmodeled dynamics. On the other hand, the more recent, end-to-end Deep Reinforcement Learning (DRL) based model-free ADSs have shown promising results. However, pure learning-based approaches lack the hard-coded safety measures of model-based controllers. Here we propose a hybrid approach for integrating a path planning pipe into a vision based DRL framework to alleviate the shortcomings of both worlds. In summary, the DRL agent is trained to follow the path planner's waypoints as close as possible. The agent learns this policy by interacting with the environment. The reward function contains two major terms: the penalty of straying away from the path planner and the penalty of having a collision. The latter has precedence in the form of having a significantly greater numerical value. Experimental results show that the proposed method can plan its path and navigate between randomly chosen origin-destination points in CARLA, a dynamic urban simulation environment. Our code is open-source and available online 11https://github.com/Ekim-Yurtsever/Hybrid-DeepRL-Automated-Driving.


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    Titel :

    Integrating Deep Reinforcement Learning with Model-based Path Planners for Automated Driving


    Beteiligte:
    Yurtsever, Ekim (Autor:in) / Capito, Linda (Autor:in) / Redmill, Keith (Autor:in) / Ozgune, Umit (Autor:in)


    Erscheinungsdatum :

    19.10.2020


    Format / Umfang :

    1289776 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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