Automotive Engineering - June 2021 - 4

SAE STANDARDS NEWS
SAE and ISO refine the Levels of Driving Automation
A
iming for greater clarity for a global audience,
SAE International, in collaboration
with the International Organization
for Standardization (ISO), in May updated
the industry's reference for driving automation
capabilities. SAE J3016 Recommended
Practice: Taxonomy and Definitions for Terms
Related to Driving Automation Systems for OnRoad
Motor Vehicles is commonly referenced as
the SAE Levels of Driving Automation.
SAE J3016 provides a taxonomy with supporting
terms and definitions for SAE's six levels of
driving automation. The SAE Levels range from
no driving automation at Level 0 to full driving
automation at Level 5, in the context of motor
vehicles and their operation on roadways.
This latest J3016 updates the previous version
Jennifer
Shuttleworth
Associate Editor
Jennifer.Shuttleworth
@sae.org
of the recommended practice with the addition
of several new terms, considerable refinement and clarification
of misinterpreted concepts. It also restructures certain
definitions into more logical groupings.
" As the development of automated driving technologies
continues on a global scale, SAE J3016: Levels of Driving
Automation, has evolved to align with the developing technologies
and deployment strategies, " said Barbara Wendling,
chairperson for the SAE J3016 Technical Standards Committee.
SAE J3016 LEVELS OF DRIVING AUTOMATION
Learn more here: sae.org/standards/content/j3016_202104
TM
SAE
LEVEL 0
What does the
human in the
driver's seat
have to do?
TM
SAE
LEVEL 1
TM
SAE
LEVEL 2
TM
You are driving whenever these driver support features
are engaged - even if your feet are off the pedals and
you are not steering
You must constantly supervise these support features;
you must steer, brake or accelerate as needed to
maintain safety
These are driver support features
These features
are limited
What do these
features do?
to providing
warnings and
momentary
assistance
* automatic
emergency
braking
Example
Features
* blind spot
warning
* lane departure
warning
These features
provide
steering
OR brake/
acceleration
support to
the driver
* lane centering
OR
* adaptive cruise
control
These features
provide
steering
AND brake/
acceleration
support to
the driver
* lane centering
AND
* adaptive cruise
control at the
same time
SAE
LEVEL 3
TM
SAE
LEVEL 4
TM
" the driver's seat "
When the feature
requests,
you must drive
These automated driving features
will not require you to take
over driving
Copyright © 2021 SAE International.
These are automated driving features
These features can drive the vehicle
under limited conditions and will
not operate unless all required
conditions are met
This feature
can drive the
vehicle under
all conditions
" Our collaborative partnership with ISO allowed
us to expand and refine the Recommended
Practice to better equip international customers
with clear, concise and consistent language
and definitions. "
The committee faced challenges putting together
a " live' document like J3016, especially at
a time of such dynamism, competition and controversy
in the technology. " The way we're handling
this inside of SAE, J3016 is sort of the 'constitution,'
if you will, of driving-automation definitions, "
Wendling told Automotive Engineering.
" There are other documents that have plenty of
definitions - for example, J3131 that will be published
shortly provides definitions and taxonomy
for [automated driving] architecture, " she noted.
Other standards related to automated vehicles
are in the works. They include a taxonoDRAFT-
Stand alone
my-and-definitions document being developed by the SAE
Verification and Validations committee, and the J3164 standard
from the Maneuvers and Behaviors committee.
Wendling said terms and definitions are being expanded to
help nail down scenarios and situations. " We're trying to
keep J3016 at its current high 'constitution' level and allow
the other SAE task forces that are going into specific, deeper
areas to formulate their own definitions consistent with
J3016, " she said. " So far, it
seems to be working out
fairly well. "
A focus of the latest SAETM
Copyright
© 2021 SAE International. The summary table may be freely copied and distributed AS-IS provided that SAE International is acknowledged as the source of the content.
SAE
LEVEL 5
You are not driving when these automated driving
features are engaged - even if you are seated in
TM
ISO version of J3016 (also
called ISO-PAS 22736) is to
demonstrate global harmony
on the fundamentals. " It's
how we're going to characterize
this technology, "
Wendling noted.
The J3016 graphic was
updated with some new
trademarking guidance, but
all taxonomy content remains
unchanged, according
to Justin Falce, SAE strategic
* traffic jam
chauffeur
* local driverless
taxi
* pedals/
steering
wheel may or
may not be
installed
* same as
level 4,
but feature
can drive
everywhere
in all
conditions
communications manager.
" The trademarking is so that
SAE can better 'own' the levels, "
he said.
This latest version of the
SAE J3016 Recommended
Practice is available to download,
free of charge, at www.
sae.org/standards/content/
j3016_202104/.
4 June 2021
AUTOMOTIVE ENGINEERING
https://www.sae.org/standards/content/j3016_202104 https://www.sae.org/standards/content/j3016_202104

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