SAE Update - January 2024 - 20

TECH FOCUS: GROUND VEHICLES
AND ELECTRIFICATION
SAE J3400 and the game-changing
advances in AC charging
This approach allows for flexible/
managed energy transfer and
increased energy storage
capacity, enabling higher
penetration of renewables while
maintaining grid stability. The
lower cost and other advantages
of EVSEs with detachable cables
make charging more accessible
and affordable for vehicles that
don't park in a home garage,
aligning with the broader
objectives of vehicle-grid
integration and mass
electrification.
Many consumers are well
aware of the ongoing transition
among vehicle OEMs to adopt
the NACS vehicle inlet. As a
result, there is a reluctance to
invest in the last-model year of
vehicles equipped with the
legacy SAE J1772 electric vehicle
inlet. Regulators need to move
decisively to support the
configurations supported by SAE
J3400.
In the short term, it is
reasonable for certain location types to have a
percentage of EVSE that supports legacy SAE J1772
Level 2 AC charging, but long term, this will constrain
electrification due to the reasons mentioned above.
Similar to how CHAdeMO DC stations serve their share
of legacy vehicles, the existing and in-progress
installations of SAE J1772 infrastructure will support
those legacy vehicles throughout their operational
lifespan. Electric vehicle infrastructure investments
should prioritize electrifying the 95% of the market
that still relies on combustion-based vehicles.
Finally, the broad environmental implications of SAE
J3400 cannot be overlooked. By streamlining
infrastructure with a universal AC connection and
enhancing efficiency with support for 277/480 VAC, it
accelerates the broader adoption of electric vehicles
by lowering costs, improving access, and enhancing
charging performance. n
ABOUT THE AUTHOR
Dr. Rodney McGee is a research engineer at the Transportation
Electrification Center at the University of Delaware. In this role, McGee
leads a team of engineers in designing, testing, and productizing
advanced bidirectional EVSE and EV systems while working closely
with OEMs and suppliers to foster cutting-edge technology
development. In addition to his work at the University of Delaware,
McGee chairs SAE's Medium- and Heavy-Duty Conductive Power
Transfer Task Force (SAE J3080) and the NACS (SAE J3400) Task
Force. Through these leadership roles, he actively contributes to
advancing industry standards in the electric vehicle sector.
NACS Tesla plug for charging AC and DC.
20
January 2024
UPDATE
Tesla

SAE Update - January 2024

Table of Contents for the Digital Edition of SAE Update - January 2024

SAE Update - January 2024 - INTRO
SAE Update - January 2024 - SPNSR
SAE Update - January 2024 - Cov1
SAE Update - January 2024 - Cov2
SAE Update - January 2024 - 1
SAE Update - January 2024 - 2
SAE Update - January 2024 - 3
SAE Update - January 2024 - 4
SAE Update - January 2024 - 5
SAE Update - January 2024 - 6
SAE Update - January 2024 - 7
SAE Update - January 2024 - 8
SAE Update - January 2024 - 9
SAE Update - January 2024 - 10
SAE Update - January 2024 - 11
SAE Update - January 2024 - 12
SAE Update - January 2024 - 13
SAE Update - January 2024 - 14
SAE Update - January 2024 - 15
SAE Update - January 2024 - 16
SAE Update - January 2024 - 17
SAE Update - January 2024 - 18
SAE Update - January 2024 - 19
SAE Update - January 2024 - 20
SAE Update - January 2024 - 21
SAE Update - January 2024 - 22
SAE Update - January 2024 - 23
SAE Update - January 2024 - 24
SAE Update - January 2024 - 25
SAE Update - January 2024 - 26
SAE Update - January 2024 - 27
SAE Update - January 2024 - 28
SAE Update - January 2024 - 29
SAE Update - January 2024 - 30
SAE Update - January 2024 - 31
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SAE Update - January 2024 - 33
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SAE Update - January 2024 - 35
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SAE Update - January 2024 - 37
SAE Update - January 2024 - 38
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SAE Update - January 2024 - 40
SAE Update - January 2024 - 41
SAE Update - January 2024 - 42
SAE Update - January 2024 - 43
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SAE Update - January 2024 - 45
SAE Update - January 2024 - 46
SAE Update - January 2024 - 47
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SAE Update - January 2024 - 49
SAE Update - January 2024 - 50
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