Autonomous Vehicle Engineering - January 2022 - 22

Simulation
Horiba Gets Physical
for Virtual AV Vetting
by Paul Seredynski
Moving past simulation and stimulation, Horiba's new indoor
testing tool uses manipulated physical models to vet traffic
scenario performance.
Measurement and analysis specialist Horiba has
a host of virtual tools available for suppliers and OEMs
to aid the development of autonomous vehicle (AV)
sensor suites. The Kyoto, Japan-based company offers
tools in the digital realm to model everything from a
proposed lidar sensor to managing the complex task
of sensor fusion for entire AV arrays. Horiba's latest
" virtual " tool, however, will use physical models to vet
the performance of AV sensing.
A 1:24 scale model of
Horiba's upcoming
Scenario CAV physicalbody
AV sensor-testing
platform.
In October 2021 in Novi, Michigan, Horiba
demonstrated a scaled-down version of its upcoming
lab-based Scenario CAV (Connected Autonomous
Vehicle) system, which can manipulate physical models
around a vehicle under test (VUT) to simulate realworld
scenarios. The new system will provide a stage of
testing beyond fully digital simulation models, adding
another layer of confidence to AV sensor suites in
advance of real-world testing. The goal is to verify that
autonomous systems modeled in the digital domain
actually " see " objects and obstacles as intended.
Beyond simulation and stimulation
According to Leo Breton, Horiba's technology development
director, testing protocols for AV sensors fit into
three rough categories: sensor simulation, sensor stimulation
and physical body testing. The first category,
which often comes earliest in the development process,
substitutes virtual signals for sensor output, bypassing
the vehicle sensor with computer-generated signals
designed to emulate that sensor.
" If you're sitting in a laboratory and you have test
equipment all over, the sensor - a radar system, for
example - is going to be depicting all of these objects
that are in the laboratory environment, " Breton said.
" We take the signals from the radar system and replace
them with signals that have a meaning that we're interested
in. The presence of a vehicle, five meters in front
22 January 2022
AUTONOMOUS VEHICLE ENGINEERING
Horiba

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