Truck & Off-Highway Engineering - June 2021 - 20

Platooning:
an evolving pathway
to full autonomy
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 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. "
Based on the fault-tree analysis, systems with a human-in-the-loop
could benefit from safety mitigations,
Svenson added. " Safety mitigation such as training
and operating procedures to assess the workload of
drivers in the vehicles, as well as how and what type of
information is conveyed, could be beneficial for heavytruck
platooning systems. "
Some initial hazards remained even after safety mitigations were
proposed. These hazards were selected for further analysis to develop
safety countermeasures.
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
20 June 2021
AI = real-time optimization
Optimization of fuel consumption is critical for truck
platooning, but analysis of full-scale computational
fluid dynamics (CFD) simulations can be expensive
and time-consuming, according to Dr. Hadi Meidani,
assistant professor of civil and environmental engineering
at the University of Illinois at UrbanaChampaign.
Meidani shared research during a recent
Center for Connected and Automated Transportation
(CCAT) webinar that proposes an AI-based surrogate
TRUCK & OFF-HIGHWAY ENGINEERING
BOTH IMAGES: NHTSA

Truck & Off-Highway Engineering - June 2021

Table of Contents for the Digital Edition of Truck & Off-Highway Engineering - June 2021

Truck & Off-Highway Engineering - June 2021 - CVR4
Truck & Off-Highway Engineering - June 2021 - BAND1
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Truck & Off-Highway Engineering - June 2021 - CVR1
Truck & Off-Highway Engineering - June 2021 - CVR2
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