Autonomous Vehicle Engineering - May 2021 - 20
Artificial Intelligence/Machine Learning
NHTSA
NHTSA
Researchers developed
two concept platooning systems, one being
a three-vehicle SAE
Level 2 (3VL2) system
with two complicating
features: the following
vehicle had neither
steering nor speed
control by a human.
Some initial hazards remained even after safety mitigations were
proposed. These hazards were selected for further analysis to
develop safety countermeasures.
Safety analysis of platooningsystem concepts
A hazard is an event that poses a danger to people, the
system, or the environment. " Generally, it's caused by
human error, a failure of hardware or a software defect.
It may also be caused by limitations of the system design
20 May 2021
- for example, a scenario that's unaccounted for, " said Alrik
Svenson, a research engineer at the National Highway
Traffic Safety Administration (NHTSA). Svenson
presented at the 2021 SAE Government/Industry Digital
Summit an overview of a recent study that assessed the
hazards of heavy-truck platooning systems.
The team, which consisted of researchers from
Battelle, the Volvo Group, WABCO (now part of ZF)
and SAE International, performed a risk assessment
for each hazard identified, conducted a Safety of the
Intended Functionality (SOTIF) analysis (which
addresses unintended system behaviors in the absence
of electronic faults), and completed a fault tree analysis
(FTA) for some selected hazards. Researchers developed two concept platooning systems, both of which
had a driver in the lead vehicle who was fully responsible for driving and overseeing the platoon.
" These are not any particular system, but a generic
version of concept systems that are in development for
the North American market, " Svenson explained. One
was a two-vehicle SAE Level 1 system (2VL1) and the
second was a three-vehicle SAE Level 2 (3VL2) system
that had two complicating features: the following
vehicle had neither steering nor speed control by a
AUTONOMOUS VEHICLE ENGINEERING
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
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Autonomous Vehicle Engineering - May 2021 - CVR4
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