Automotive Engineering - March 2023 - BET22

Advancing Higher Speeds
and New Techniques
for EV Recharging
Two new initiatives address methods to make EV charging faster
- or require no " downtime " at all.
T
he ability to charge electric vehicles at a very
fast rate is a key to electrifying mobility across
the U.S. It's a focus of the U.S. Dept. of Energy's
Extreme Fast Charger project, whose potential
was demonstrated convincingly on a production
GMC Hummer EV at the American Center for
Mobility (ACM) in Ypsilanti, MI, last fall.
The Hummer EV observed by SAE Media featured an 800volt
electrical architecture - considered state-of-the-art for
DC " extreme fast " charging. Both GM and Delta Electronics
(Americas) Ltd., which provided the charging system, are partnering
with DoE on the program. The results of the demonstration
were " phenomenal, " said Jim Khoury, Senior Manager
of Global Electrification at GM.
The parameters for the extreme fast charger were established
in an earlier test that also involved a Hummer EV. That test, spanning
nine minutes at 500 amps at an average 725 volts, yielded
nearly 55 kWh before the EV's battery started to limit the current.
" While other DC fast chargers can also charge at 500 amps, the
power capability is lower, so it power-limits sooner in the charge
cycle. Our power limit is 400 kW, " said Dr. Charles Zhu, VP of the
Automotive Business Group for Delta Electronics, and the Principal
Investigator for the DoE project. He said that generally, the Delta
extreme fast charging system can deliver 66.7 kWh in 10 minutes.
22
Battery & Electrification Technology, March 2023
Suwin/Shutterstock.com

Automotive Engineering - March 2023

Table of Contents for the Digital Edition of Automotive Engineering - March 2023

Automotive Engineering - March 2023 - INTRO1
Automotive Engineering - March 2023 - SPONSOR1
Automotive Engineering - March 2023 - CVR1
Automotive Engineering - March 2023 - CVR2
Automotive Engineering - March 2023 - 1
Automotive Engineering - March 2023 - 2
Automotive Engineering - March 2023 - 3
Automotive Engineering - March 2023 - 3A
Automotive Engineering - March 2023 - 3B
Automotive Engineering - March 2023 - 4
Automotive Engineering - March 2023 - 5
Automotive Engineering - March 2023 - 6
Automotive Engineering - March 2023 - 7
Automotive Engineering - March 2023 - 8
Automotive Engineering - March 2023 - 9
Automotive Engineering - March 2023 - 10
Automotive Engineering - March 2023 - 11
Automotive Engineering - March 2023 - 12
Automotive Engineering - March 2023 - 13
Automotive Engineering - March 2023 - 14
Automotive Engineering - March 2023 - 15
Automotive Engineering - March 2023 - 16
Automotive Engineering - March 2023 - 17
Automotive Engineering - March 2023 - 18
Automotive Engineering - March 2023 - 19
Automotive Engineering - March 2023 - 20
Automotive Engineering - March 2023 - 21
Automotive Engineering - March 2023 - 22
Automotive Engineering - March 2023 - 23
Automotive Engineering - March 2023 - 24
Automotive Engineering - March 2023 - 25
Automotive Engineering - March 2023 - 26
Automotive Engineering - March 2023 - 27
Automotive Engineering - March 2023 - 28
Automotive Engineering - March 2023 - 29
Automotive Engineering - March 2023 - 30
Automotive Engineering - March 2023 - 31
Automotive Engineering - March 2023 - 32
Automotive Engineering - March 2023 - 33
Automotive Engineering - March 2023 - CVR4
Automotive Engineering - March 2023 - BETCVRA
Automotive Engineering - March 2023 - BETCVRB
Automotive Engineering - March 2023 - BETCVR1
Automotive Engineering - March 2023 - BETCVR2
Automotive Engineering - March 2023 - BET1
Automotive Engineering - March 2023 - BET2
Automotive Engineering - March 2023 - BET3
Automotive Engineering - March 2023 - BET4
Automotive Engineering - March 2023 - BET5
Automotive Engineering - March 2023 - BET6
Automotive Engineering - March 2023 - BET7
Automotive Engineering - March 2023 - BET8
Automotive Engineering - March 2023 - BET9
Automotive Engineering - March 2023 - BET10
Automotive Engineering - March 2023 - BET11
Automotive Engineering - March 2023 - BET12
Automotive Engineering - March 2023 - BET13
Automotive Engineering - March 2023 - BET14
Automotive Engineering - March 2023 - BET15
Automotive Engineering - March 2023 - BET16
Automotive Engineering - March 2023 - BET17
Automotive Engineering - March 2023 - BET18
Automotive Engineering - March 2023 - BET19
Automotive Engineering - March 2023 - BET20
Automotive Engineering - March 2023 - BET21
Automotive Engineering - March 2023 - BET22
Automotive Engineering - March 2023 - BET23
Automotive Engineering - March 2023 - BET24
Automotive Engineering - March 2023 - BET25
Automotive Engineering - March 2023 - BET26
Automotive Engineering - March 2023 - BET27
Automotive Engineering - March 2023 - BET28
Automotive Engineering - March 2023 - BET29
Automotive Engineering - March 2023 - BET30
Automotive Engineering - March 2023 - BET31
Automotive Engineering - March 2023 - BET32
Automotive Engineering - March 2023 - BET33
Automotive Engineering - March 2023 - BET34
Automotive Engineering - March 2023 - BETCVR3
Automotive Engineering - March 2023 - BETCVR4
https://www.nxtbook.com/smg/sae/24AE12
https://www.nxtbook.com/smg/sae/24AE10B
https://www.nxtbook.com/smg/sae/24AE10
https://www.nxtbook.com/smg/sae/24AE09B
https://www.nxtbook.com/smg/sae/24AE09
https://www.nxtbook.com/smg/sae/24AE08
https://www.nxtbook.com/smg/sae/24AE06
https://www.nxtbook.com/smg/sae/24AE05
https://www.nxtbook.com/smg/sae/24AE04
https://www.nxtbook.com/smg/sae/24AE03
https://www.nxtbook.com/smg/sae/24AE02
https://www.nxtbook.com/smg/sae/23AE12
https://www.nxtbook.com/smg/sae/23AAVE11
https://www.nxtbook.com/smg/sae/23AE10
https://www.nxtbook.com/smg/sae/23AE09
https://www.nxtbook.com/smg/sae/23AE08
https://www.nxtbook.com/smg/sae/23AAVE07
https://www.nxtbook.com/smg/sae/23AE06
https://www.nxtbook.com/smg/sae/23AE05
https://www.nxtbook.com/smg/sae/23AAVE04
https://www.nxtbook.com/smg/sae/23AE04
https://www.nxtbook.com/smg/sae/23AE03
https://www.nxtbook.com/smg/sae/23AE02
https://www.nxtbook.com/smg/sae/23AAVE01
https://www.nxtbook.com/smg/sae/22AE12
https://www.nxtbook.com/smg/sae/22AVE11
https://www.nxtbook.com/smg/sae/22AE10
https://www.nxtbook.com/smg/sae/22AE09
https://www.nxtbook.com/smg/sae/22AE08
https://www.nxtbook.com/smg/sae/22AVE07
https://www.nxtbook.com/smg/sae/22AE06
https://www.nxtbook.com/smg/sae/22AE05
https://www.nxtbook.com/smg/sae/22AVE04
https://www.nxtbook.com/smg/sae/22AE04
https://www.nxtbook.com/smg/sae/22AE03
https://www.nxtbook.com/smg/sae/22AE02
https://www.nxtbook.com/smg/sae/22AVE01
https://www.nxtbook.com/smg/sae/21AE12
https://www.nxtbook.com/smg/sae/21AVE11
https://www.nxtbook.com/smg/sae/21AE10
https://www.nxtbook.com/smg/sae/21AVE09
https://www.nxtbook.com/smg/sae/21AE09
https://www.nxtbook.com/smg/sae/21AE08
https://www.nxtbook.com/smg/sae/21AVE07
https://www.nxtbook.com/smg/sae/21AE06
https://www.nxtbook.com/smg/sae/21AE05
https://www.nxtbook.com/smg/sae/21AVE05
https://www.nxtbook.com/smg/sae/21AE04
https://www.nxtbook.com/smg/sae/21AE03
https://www.nxtbook.com/smg/sae/21AVE03
https://www.nxtbook.com/smg/sae/21AE02
https://www.nxtbookmedia.com