Safety Design Strategies in Highly Autonomous Drive Level 2 – Lateral Control Decomposition Concept
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Published:2021-08-28
Issue:8
Volume:27
Page:811-829
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ISSN:0948-6968
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Container-title:JUCS - Journal of Universal Computer Science
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language:
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Short-container-title:jucs
Author:
Stolfa SvatoplukORCID,
Stolfa Jakub,
Simonik Petr,
Mrovec Tomas,
Harach Tomas
Abstract
The paper is based on an experimental study at VSB TUO Ostrava with a DEMOCAR vehicle that simulates a real car with sensor fusion concept and a vehicle gateway to send and coordinate commands to ECUs to realize and manage autonomous driving. In this experimental study of autonomous driving vehicles control, a HARA (Hazard and Risk Analysis, ISO 26262:2018) has been done on vehicle level and strategies have been defined and implemented to manage safety situations where the car lateral control shall be hand over to a driver when in HAD 2 mode. The issue is that the switching to safe state shall not be done immediately but the vehicle has to stay in safe driving mode – fail-operational up to 4 seconds until a driver can take over. The UECE and other relevant studies show that it can take up to 6 seconds if driver/operator is not in the flow (HAD 3) and up to the 2 seconds when driver is in the flow (HAD 1). The paper makes assumptions and proposals about vehicle lateral control strategy to ensure the smooth take- over of the car by driver and its impact on control software development architectures.
Publisher
Pensoft Publishers
Subject
General Computer Science,Theoretical Computer Science
Cited by
1 articles.
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