ADAS & Autonomous Vehicle Engineering - April 2023 - 8

Cover Story
"
Simulation is a game-changer for things like ADAS, particularly when
combined with hardware-in-the-loop.
"
Driving simulators' greatest value is in the design flexibility
they provide, said research engineer Lucas Bruck at McMaster
University.
simulators, according to Bairati. The onboard sensor
array can be modelled into the traffic simulation environment
together with the vehicle to verify common
SAE Level 2 ADAS functions such as automated
emergency braking, adaptive cruise control, and lane
departure warning. It also can be hardware tested at
the subsystem and system levels.
For ADAS studies, a typical VI-grade Driving
Simulator configuration consists of a static or
full-motion dynamic simulator (the company says
most customers have both to test and tune different
types of systems); a cockpit from a real vehicle,
which provides realism and immersion of the driving
experience, and active safety systems like belts and
seat vibrators that give the drivers additional cues.
Control systems, sensors and other devices can be
added both as SiL or HiL.
With HiL, embedded controllers can be tested
with actual hardware components - individual and
fused sensors, in the case of ADAS - that simulate
real world conditions well before the final system
is integrated. The sensor test can be extended to the
Driving Simulator via a Sensor Fusion Test, enabling
ADAS functionalities, including driver reaction to the test
parameters, to be fully and safely evaluated and optimized
in the lab before running real road tests.
Experts mention another valuable aspect of
Ford Motor Co. aims to make sim an analog to the real
world and a better way for engineers to work, said Louis
Jamail, supervisor, core methods and simulation/VAE
driving simulators.
simulation that's has already underway: training test
engineers. They're the perceptive and practiced individuals
who can run five hard laps on the track then
tell you the damping rate needs to be increased by a
fraction of an Ns/m.
Driving simulator training enables test engineers
to correlate how the feel of the vehicle changes
when the parameters are changed. " Give them experience
- and they can train the software as well, "
Abuelsamid asserted.
Human factors design is another application
that's growing for driving simulators, due to the
importance of HMI development for occupant safety,
comfort and convenience. Driving simulators are
being used to optimize HMI design, improving the
vehicle-to-driver communication, ensuring the driver
remains engaged in the driving task and playing a
role in designing vehicle interiors that enhance the
driving and transportation experience.
Zero prototypes are a worthy goal for vehicle
development teams, and for the companies who
provide solutions toward that goal. " Do I believe in
'zero prototypes'? No, " said virtual simulation and
testing expert Bruck of McMaster University. " I say
that because I worked 10 years in the industry. But
I do think that a drastic reduction in prototypes is
achieveable, " he said. ■
8 April 2023
ADAS & AUTONOMOUS VEHICLE ENGINEERING
Lindsay Brooke
Lindsay Brooke
ADAS & Autonomous Vehicle Engineering - April 2023

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