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Contribution à la démonstration de la sécurité du véhicule autonome, basée sur une stratégie de génération de scénarios, modélisée par niveaux d’abstraction et orientée par la sensibilité du VA, pour une validation par simulation

Abstract : This CIFRE thesis, carried out within Stellantis, provides a scenario generation strategy, modelled by levels of abstraction and oriented by the sensitivity of the AV, for a simulation-based validation process. This work is within the scope of the ISO PAS 21448 /SOTIF (Safety Of The Intended Functionality) standard.To do this, the approach followed is based on five contributions: (1) An analysis of the functional architecture of the AV and the highlighting of the challenges related to its safety validation: normative aspects, simulation chains, the presence of uncertainty in the operational environment of the AV. (2) The proposal of a conceptual framework (knowledge model) on which the scenario generation methodology to be proposed later will be based. (3) A summary of the indicators used in the literature, as well as those that we will use in our final generation strategy, including the sensitivity indicator. It also gives a structure of the system of scenario generation and simulation based validation of the safety of the AV, as well as the way in which the indicators will be exploited in this structure. (4) The proposal of a scenario generation heuristic and the estimation of the risk indicator associated with the AV. This fourth contribution is based on the elements developed in the previous contributions: the proposed conceptual model (contribution 2), the structure of the generation and validation system and the associated indicators (contribution 3). (5) Finally, the last contribution is an implementation of the previous proposals via a case study.Keywords: Autonomous Vehicle (AV), Safety Of The Intended Functionality (SOTIF), Functional performance limitation, Functional insufficiencies, Critical scenarios, Sensitivity metric, Scenarios generation strategy, Simulation-based Validation process
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Submitted on : Wednesday, April 6, 2022 - 3:03:44 PM
Last modification on : Friday, April 8, 2022 - 3:01:16 AM

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Tchoya Florence Koné. Contribution à la démonstration de la sécurité du véhicule autonome, basée sur une stratégie de génération de scénarios, modélisée par niveaux d’abstraction et orientée par la sensibilité du VA, pour une validation par simulation. Automatique / Robotique. Université de Lorraine, 2021. Français. ⟨NNT : 2021LORR0182⟩. ⟨tel-03632822⟩

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