SAE Update - July 2022 - 28
STANDARDS &
cOMMITTEES
SAE J3271 MCS
inlet, similar in
size to CCS inlet
with 10x (3000
A) charging
capability.
Launch of SAE J3271-Air7357 Megawatt
Charging System Standards (MCS) for all
large-battery vehicles that roll, fly, or float
By Theodore Bohn, Argonne National Laboratory
Commercial electric vehicles have moved
from concepts to prototypes and now into
production with ever increasing battery
capacity. Larger-capacity batteries to
support longer-range and load capability
up to class 8 vehicles require higher
charging power to keep the recharge time
manageable. Some commercial vehicles
have a long dwell time, allowing use of
existing SAE J1772 based DC charging
systems, up to 350kW. Many commercial
Theodore Bohn is a Principal Electrical
Engineer at Argonne National
Laboratory and the chair of SAE J3271,
J2953, AIR7357, IEEE P2030.13 and vice
chair among other standards work
group activities.
28 July 2022
vehicles have a short time available for
battery recharge, with a goal to recharge
the vehicle nearly as fast as present liquid
refueling. A current example is the desire
to replace 80% of the vehicle range in 20
minutes while the load is being transferred
or concurrent with a driver break. For a
500-kWh battery, that is 3C rate or 1.5MW.
A task force of industry stake holders
and subject matter experts was launched in
2018 as the CharIN Megawatt Charging
System (MCS- https://www.charin.global/
technology/mcs/ ). As an industry group it
developed documents and specifications
that can be used by Standards Developing
Organizations (SDOs). The task group was
comprised of mostly members of SDO
work groups that developed current DC
UPDATE
Scania
https://www.charin.global/technology/mcs/
https://www.charin.global/technology/mcs/
SAE Update - July 2022
Table of Contents for the Digital Edition of SAE Update - July 2022
SAE Update - July 2022 - Cov1
SAE Update - July 2022 - Cov2
SAE Update - July 2022 - 1
SAE Update - July 2022 - 2
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SAE Update - July 2022 - 38
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