Autonomous Vehicle Engineering - May 2021 - 21
Artificial Intelligence/Machine Learning
FreightWaves / Locomation
Locomation's " responsible
path " to full autonomy
involves four phases, beginning with human-guided
autonomous truck convoys.
human. The operational design domain (ODD) was
freeways at nominally steady cruising speed.
A comprehensive list of 57 hazards was developed,
based on the research team's platooning expertise
and with contributions from the American Trucking
Associations, the Commercial Vehicle Safety Alliance,
and SAE International standards committee members.
The automotive standard ISO 26262 provided a framework for assessing each hazard on its severity, probability of exposure and controllability. Potential design
operations, maintenance and safety mitigations were
proposed to each hazard and their effect on the identified risks were assessed for both concept systems.
" Most of these [initial hazards] went to green, which
is the lowest ASIL [Automotive Safety Integrity Level]
rating, with appropriate safety mitigations, " said Svenson.
" A few did not get reduced to the green level, so these
AUTONOMOUS VEHICLE ENGINEERING
are the hazards that were selected for further analysis to
develop safety countermeasures. " For example, a cyber-attack on the following vehicle's communication subsystem,
which impacted both the 2VL1 and 3VL2 systems, was
one such hazard that required SOTIF analysis.
" From this, risks that were unknown prior to
the analysis can be identified. As functional hazard
scenarios are identified, known unsafe scenarios are
increased, " Svenson said. Due to limited published
information available on platooning systems, the
researchers made some assumptions about the functional system specifications. " The system integrator
would need to further develop validation use-case
scenarios to test the system in a real-world environment to identify unknown unsafe scenarios, " he said.
" The iterative process of SOTIF can increase the safety
and reliability of truck platooning systems. "
May 2021 21
Autonomous Vehicle Engineering - May 2021
Table of Contents for the Digital Edition of Autonomous Vehicle Engineering - May 2021
Autonomous Vehicle Engineering - May 2021 - CVR4
Autonomous Vehicle Engineering - May 2021 - CVR1
Autonomous Vehicle Engineering - May 2021 - CVR2
Autonomous Vehicle Engineering - May 2021 - 1
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Autonomous Vehicle Engineering - May 2021 - CVR4
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