dSPACE - Magazine 2016/01

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Tae Seung Kim
Tae Seung Kim is responsible for
the Active Safety Test Development
Team in the System Test Develop-
ment Division of Hyundai MOBIS
in Yongin-Shi, South Korea.
Radar test bench
The radar sensor test bench is
used to perform basic function
tests of the radar sensor. It is
an anechoic chamber with
electrically conductive walls
that electromagnetically shield
the interior chamber from the
outside world (Faraday cage).
To recreate realistic traffic situ-
ations, the appropriate generic
sensor model from ASM runs
on the HIL simulator. A dSPACE
MicroAutoBox takes on the
role of the radar control unit.
Camera test bench
The key to testing camera-
based driver assistance systems
in the lab is a real-time represen-
tation of realistic vehicle envi-
ronments, which are interpreted
as real traffic situations by the
front camera. The driving situ-
ations are visualized by dSPACE
MotionDesk and thus perfectly
stimulate the camera. At this
measuring station, a dSPACE
MicroAutoBox is initially used
to calculate the LKAS algo-
rithms, because the develop-
ment of the final control unit
has not been finished yet.
detection of driving lanes, another
for the ultrasound-based parking
assistant, and one for the steering
assistant and the brakes.
The Automotive Simulation Models
(ASM) from dSPACE for vehicle dy-
namics and traffic applications are
run on the HIL simulator so that the
various tests can be performed real-
istically. ASM Traffic includes generic
sensor models for radar and ultra-
sonic applications, like detecting
object contours for park assistance
systems. The radar system control
unit and the SPAS control unit are
connected as actual control units,
and the LKAS control unit is initially
replaced by a dSPACE MicroAutoBox®.
To develop the algorithms in the
radar control unit for the proximity
control SCC, for example, the radar
control unit can also be replaced by
a MicroAutoBox. In the real-time
simulation, the radar sensor model
uses the behavior of the test vehicle’s
dynamics and the traffic environment
as a basis to generate information,
such as the speed difference, distance
and azimuth of the vehicles ahead,
which is transmitted via CAN to the
SCC algorithm on the MicroAutoBox.
To integrate the actual radar control
unit in the closed-loop simulation, a
radar target simulator is planned to
be used to generate the reflections
resulting from the relative velocities
and distances of the vehicles ahead
as a real radar echo.
The test and experiment software
dSPACE ControlDesk is used to
monitor the experiments, record
data, generate specific errors, and
postprocess data, to name just a
few tasks. In the future, for the
Figure 1: Part of the lab setup: The camera test bench (on the left), the driver’s seat
(in the middle), and the HIL simulator (in the back right).
CUSTOMERS
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”The test benches of dSPACE hardware and
software gave us the capability to efficiently
test multiple driver assistance systems in inter-
action.”
Tae Seung Kim, Hyundai MOBIS
Source: © Hyundai MOBIS
dSPACE Magazine 1/2016 · © dSPACE GmbH, Paderborn, Germany · ·