SAE Update - July 2023 - 7

COmmENTAry
engineers to develop and test
real-world mobility systems that
interact with vehicles.
Infrastructure systems such as
weigh stations, mobile emissions
monitors, and V2X interfaces can
use vehicle digital twins to find
hidden Issues, fix, and then verify
them to get products to market
faster. Automotive engineers can
remotely connect digital twins to
these installations and validate
the interaction between the
vehicle and these new
technologies.
The University of DetroitMercy
is currently working with
the University of Arizona to
create an automotive digital twin
to simulate operations of real
vehicle systems. The University
of Detroit-Mercy digital twin is
located on campus in the Vehicle
Cyber Engineering Laboratory
and is connected to a cloudbased
environment. Researchers
and students are assigned
predefined virtual machines
which allow them to perform
cybersecurity experiments on
the digital twin vehicle systems.
The Vehicle Cyber Engineering
Laboratory team will then
substantiate its work on a real
vehicle outfitted with test
instruments to validate new
UPDATE
cyber intrusion detection and defense research. The
digital twin and the real vehicle operate together as a
system exchanging software and data from the
simulated vehicle systems into an actual vehicle
testbed system. Research work on defending vehicles
against wireless and service tool based cyber-attacks
is only one example of how digital twin systems are
now being adapted for automotive applications.
Threat Models
Just as there are many properties to vehicle
engineering, there are multiple components to vehicle
cybersecurity. Some aspects
of vehicle cybersecurity
areas of focus include:
diagnostic ports and wireless
access, security of off-board
computer connections, onboard
electronic control units
(ECUs), secure over the air
software updates.
Automotive industry OEMs
also have varied electronic system architectures which
may have exposed uniquely different security threats.
Collaboratively developed with worldwide technical
experts, SAE International's technical standards
provide engineers with guidance for developing
vehicle cybersecurity vehicle systems. Technical
standards such as SAE/ISO 21434, SAE J3103, SAE
J1939-91, and SAE J3005-2 define some cybersecurity
best practices.
Cybersecurity best practices recommendations start
with defining a threat model for your system and its
data. The threat model provides cybersecurity
defenders with an assessment of what defenses would
be needed based on a) probable attackers, b) the most
likely attack vectors, and c) the assets most desired by
July 2023
7

SAE Update - July 2023

Table of Contents for the Digital Edition of SAE Update - July 2023

SAE Update - July 2023 - Cov1
SAE Update - July 2023 - Cov2
SAE Update - July 2023 - 1
SAE Update - July 2023 - 2
SAE Update - July 2023 - 3
SAE Update - July 2023 - 4
SAE Update - July 2023 - 5
SAE Update - July 2023 - 6
SAE Update - July 2023 - 7
SAE Update - July 2023 - 8
SAE Update - July 2023 - 9
SAE Update - July 2023 - 10
SAE Update - July 2023 - 11
SAE Update - July 2023 - 12
SAE Update - July 2023 - 13
SAE Update - July 2023 - 14
SAE Update - July 2023 - 15
SAE Update - July 2023 - 16
SAE Update - July 2023 - 17
SAE Update - July 2023 - 18
SAE Update - July 2023 - 19
SAE Update - July 2023 - 20
SAE Update - July 2023 - 21
SAE Update - July 2023 - 22
SAE Update - July 2023 - 23
SAE Update - July 2023 - 24
SAE Update - July 2023 - 25
SAE Update - July 2023 - 26
SAE Update - July 2023 - 27
SAE Update - July 2023 - 28
SAE Update - July 2023 - 29
SAE Update - July 2023 - 30
SAE Update - July 2023 - 31
SAE Update - July 2023 - 32
SAE Update - July 2023 - 33
SAE Update - July 2023 - 34
SAE Update - July 2023 - 35
SAE Update - July 2023 - 36
SAE Update - July 2023 - 37
SAE Update - July 2023 - 38
SAE Update - July 2023 - 39
SAE Update - July 2023 - 40
SAE Update - July 2023 - 41
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SAE Update - July 2023 - 45
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SAE Update - July 2023 - 49
SAE Update - July 2023 - 50
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SAE Update - July 2023 - 53
SAE Update - July 2023 - 54
SAE Update - July 2023 - 55
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