Autonomous Vehicle Engineering - March 2021 - 13
ADAS
in particular. And " early data " show
possible positive impact for adaptive
cruise control, too.
But that potential is countered by
a wide variance in system performance
and driver-interface efficacy that is
hindering driver-assistance technology's impact, many on the panel said.
Poor driver-interface design shapes
system effectiveness and also can lead
consumers to disable the function
entirely, said Zuby. He added that studies
have indicated deactivation rates as high
as 70% for LKA, a feature that seems
to have an outsized potential annoyance factor. " Intervention needs to be
perceived as useful - and not too late. "
Ironically, good systems also have
a downside: fostering driver inattentiveness or even outright abuse. " We
need to help the driver, moment-tomoment, " asserted Bryan Reimer,
research scientist at MIT. Ill-designed
functions that permit lags as long as
several seconds in alerting the driver
" are not acceptable, " he said, while good
systems also need a viable method to
assure driver attentiveness. " We have
to mitigate the abuse - and misuse - of
automated vehicle technology, " he said.
" We don't need a debate on this, "
Reimer added, calling driver-assistance
features " the intersection of safety and
convenience. " He suggested quick
auto-industry and regulator action
for a voluntary agreement or regulation to require a DMS when assist
features are activated. Interior cameras
have emerged as the most viable DMS
solution and already are in use by many
automakers. Increasingly sophisticated
camera software not only can reliably
monitor attentiveness, but also detect
drowsiness or impairment, while
also monitoring the cabin for other
distracting behavior or situations.
Kelly Funkhouser, head of
advanced vehicle technology at
Consumer Reports, concurred, saying
" it's the responsibility of automakers " to
equip vehicles with effective and vigilant
AUTONOMOUS VEHICLE ENGINEERING
driver-monitoring technology if Level
2 functions are available, noting that
some current DMS can be easily duped
or disabled.
" Effective, direct driver monitoring " should be an industry priority as
driver-assistance features become more
ubiquitous, she stressed.
Regulation's role
Richard Schram, technical director at
Euro NCAP, cautioned that although
consistent and effective standards and
regulation for assisted-driving technology are important, regulators must
endeavor to avoid regulations that " push
manufacturers to design systems that
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