Putting Safety of Intended Functionality SOTIF into Practice Autonomous Instruments

Format:

Book

Conference/Event

Author/Creator:

Abdulazim, Amr, author.

Contributor:

Elbahaey, Moustafa

Mohamed, Abduallah

Conference Name:

SAE WCX Digital Summit (2021-04-13 : Live Online, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

The increase of autonomy demand in the automotive industry made the usage of AI models inevitable. However, such models introduce a variety of threats to automobile safety and security. ISO/PAS 21448 SOTIF is a safety standard that is designed to deal with risks due to non-electrical and non-electronic failures. In this paper we put SOTIF into practice. In our work we introduce a conceivable safety critical scenario that targets the lane keep assist function. We use the suggested modelling techniques in the SOTIF standard to analyze the scenario and extract the trigger event. In result, we propose a contextual based predictive ML model to monitor the intervention between the driver and lane keep assist system. Our approach followed the SOTIF verification and validation guidelines. Empirically, we use a real safety critical scenario dataset as well as an augmented dataset. Our results show a high precision/recall values that exceed 90% by an increase of more than 150% in f1 score compared to non contextual models. It also showed that there is a trade-off relation between the precision/recall values and the sensitivity of models to its inputs

Notes:

Vendor supplied data

Publisher Number:

2021-01-0196

Access Restriction:

Restricted for use by site license