Autonomous Vehicle Engineering - September 2021 - 28

New Tools & Technologies
Brain-wave sensor
Hyundai Mobis (Seoul, South
Korea) introduces M.Brain, a
new healthcare technology-based
brainwave-measurement
sensor the company is
prepping for applying for the
first time in the automotive industry. Brainwave measurement,
said the company, is known to be one of the most advanced and
challenging biosignals with which to work. M.Brain measures the
driver's condition on a real-time basis by detecting the brainwaves
around the ears through earpiece sensors; software analyzes
and creates data derived from the brainwaves. M.Brain also can
integrate with a smartphone app. The accident-prevention technology
can provide alerts for different sensory alerts such as
LEDs around the driver's seat, seat vibration or headrest-speaker
auditory alerts. Hyundai Mobis plans to initially apply various
bio-healthcare technologies to public transportation; M. Brain
will be first tested in Gyeonggi-do's public buses.
For more information, visit http://info.hotims.com/79451-450
New 77GHz radar in series production
With the introduction of
77GHz radar sensors, Hella
(Northville, MI) is expanding
its leading position in radar
technology. For functions
such as autonomous parking
or automated lane changes, 77GHz technology offers a
significantly larger signal bandwidth and improved environmental
resolution compared to 24GHz, Hella said. The centerpiece
of the 77GHz radar sensors is the radar system chip,
which is based on RF-CMOS technology. Thanks to the special
architecture, digital components as well as systems for
self-diagnosis can be integrated on the chip, in addition to
the components for transmitting and receiving. The company
said it also is developing the second generation of 77GHz
radar, slated for series production for a German premium
manufacturer in 2024. Second-generation 77GHz radar will
have the latest antenna and chip technologies to increase
range, extend field-of-view (FOV) and further improve measuring
capability at close range.
For more information, visit http://info.hotims.com/79451-451
MEMS microphone for automotive
Infineon Technologies
(Munich, Germany) launches
the XENSIV™ IM67D130A, a
new high performance, lownoise
MEMS microphone for
automotive applications. The XENSIV™ IM67D130A is the first
microphone in the market to be qualified for automotive applications,
which Infineon said will help simplify the design-in efforts
for the industry and reduce the risk of qualification fails.
The microphone has an increased operating temperature range
from -40°C to +105°C to enable various use cases in harsh automotive
environments. The high acoustic overload point
(AOP) of 130 dB SPL allows the microphone to capture distortion-free
audio signals in loud environments. The microphone is
also suited for exterior applications such as siren or road-condition
detection. The high signal-to-noise ratio (SNR) of 67 dB
combined with an exceptionally low distortion level leads to
optimum speech quality and superior speech intelligence for
applications based on speech recognition.
For more information, visit http://info.hotims.com/79451-452
High-current, low-inductance
power inductors
TDK Corporation (Tokyo, Japan) developed
new HPL505032F1 power
inductors for use in automotive circuits.
The inductors enable SAE Level
5 Advanced Driver-Assistance
System (ADAS) applications for cameras by offering high-current
and low-inductance for power circuits in central processing
units (CPUs) and graphic processing units (GPUs). The new power
inductors achieve high power efficiency by adopting a low-resistance
frame for the highly permeable and low-loss ferrite
made of high BS material and low-RDC that is fully developed
in-house. Rated current is 1.5 times higher than TDK's existing
product (HPL505028), accommodating currents as high as 40 A
to 50 A. While the proprietary structural design generates magnetic
flux-canceling effects contributing to noise control, the
frame that integrates internal and external electrodes reduces
the risk of an open circuit and short circuit, ensuring high reliability.
Mass production of the new inductors began in July 2021.
For more information, visit http://info.hotims.com/79451-453
28 September 2021
AUTONOMOUS VEHICLE ENGINEERING
http://info.hotims.com/79451-450 http://info.hotims.com/79451-452 http://info.hotims.com/79451-451 http://info.hotims.com/79451-453
Autonomous Vehicle Engineering - September 2021

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