Automotive Engineering - December 2024 - 20

INTEGRATING SENSOR DATA:
COVER STORY
Selecting an ADAS decision-making process
At the launch of
the 2025 R1, Rivian
displayed a model of
the sensor suite and
the control board.
A sample of the way
LeddarTech's sensors
see the world.
" The [early fusion] perception model can be jointly trained with
behavioral agent prediction, where we can not only identify and classify
objects but predict paths and likely actions of other vehicles and
road users, " Rivian said. " Modern AI is incredibly powerful, but it is a
tool that requires constant early decision-making, with a view towards
the future. "
Raw data offers far more data to process and requires training AI
perception models to filter out the kinds of noise each sensor type is
prone to include. LeddarTech's open platform software toolkit for
automakers can be integrated into OEM ADAS systems, and claims it
offers high decision reliability on lean compute packages thanks to
the quality of its perception model.
A new approach called very early fusion is now under consideration.
This strategy, " incorporates tuning sensors to work together to reduce
data volume almost at the sensor, " Weed said. " You're actually informing
the way the sensors are capturing the environment based on each
other. " Camera output accounts for the bulk of sensor data but much
of that data is irrelevant. Lidar point cloud data could be used to strip
away unnecessary image data before processing. " You don't need millions
of points of the sky or the road right in front of you based on the
lidar data, where you see that there is free space, " Weed said.
20 December 2024
Improved compute power
The compute module is another area rife with development
potential. The explosion in vehicle software
has invited major chip makers into vehicle design as
OEMs reduce the number of ECUs in a car in favor of
powerful brains to run all vehicle functions. Rivian and
Volvo use Nvidia's Drive Orin chip, and Nvidia has its
own autonomy solution called Hyperion that is above
SAE Level 2 and uses the same Iris lidar on Volvo's
EX90. Intel, already a force in in-car chips, bought
ADAS maker Mobileye - which Volkswagen uses - in
2017. And Qualcomm has lately begun doing more to
promote its Snapdragon Ride Platform.
Computing demands can quickly escalate when dealing
with heaps of real-time raw data, predictive AI, neural
networks, and large language models. Even before
considering the rigors of a vehicle's duty cycle, vehicles
impose constraints on space, energy draw, and heat.
LeddarTech's Olivier mentioned fuel economy mandates
as another hot button, noting that energy draw
AUTOMOTIVE ENGINEERING
FROM TOP: JONATHON RAMSEY; LEDDARTECH

Automotive Engineering - December 2024

Table of Contents for the Digital Edition of Automotive Engineering - December 2024

Automotive Engineering - December 2024 - Intro
Automotive Engineering - December 2024 - Sponsor
Automotive Engineering - December 2024 - CVR1
Automotive Engineering - December 2024 - CVR2
Automotive Engineering - December 2024 - 1
Automotive Engineering - December 2024 - 2
Automotive Engineering - December 2024 - 3
Automotive Engineering - December 2024 - 4
Automotive Engineering - December 2024 - 5
Automotive Engineering - December 2024 - 6
Automotive Engineering - December 2024 - 7
Automotive Engineering - December 2024 - 8
Automotive Engineering - December 2024 - 9
Automotive Engineering - December 2024 - 10
Automotive Engineering - December 2024 - 11
Automotive Engineering - December 2024 - 12
Automotive Engineering - December 2024 - 13
Automotive Engineering - December 2024 - 14
Automotive Engineering - December 2024 - 15
Automotive Engineering - December 2024 - 16
Automotive Engineering - December 2024 - 17
Automotive Engineering - December 2024 - 18
Automotive Engineering - December 2024 - 19
Automotive Engineering - December 2024 - 20
Automotive Engineering - December 2024 - 21
Automotive Engineering - December 2024 - 22
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Automotive Engineering - December 2024 - 24
Automotive Engineering - December 2024 - 25
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Automotive Engineering - December 2024 - 29
Automotive Engineering - December 2024 - 30
Automotive Engineering - December 2024 - 31
Automotive Engineering - December 2024 - 32
Automotive Engineering - December 2024 - CVR3
Automotive Engineering - December 2024 - CVR4
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