US 12,275,320 B2
System and method for electric vehicle charging and security
Joel Richard Goergen, Soulsbyville, CA (US); Chad M. Jones, Doylestown, OH (US); and Robert Gregory Twiss, Chapel Hill, NC (US)
Assigned to CISCO TECHNOLOGY, INC.
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Jun. 8, 2023, as Appl. No. 18/331,350.
Application 18/331,350 is a continuation of application No. 17/003,745, filed on Aug. 26, 2020, granted, now 11,745,613.
Prior Publication US 2023/0311685 A1, Oct. 5, 2023
Int. Cl. H02J 7/00 (2006.01); B60L 53/16 (2019.01); B60L 53/30 (2019.01); B60L 53/35 (2019.01); B60S 3/04 (2006.01); G06F 21/32 (2013.01); G06F 21/86 (2013.01); H02J 7/04 (2006.01); H02J 7/14 (2006.01)
CPC B60L 53/305 (2019.02) [B60L 53/16 (2019.02); B60L 53/35 (2019.02); B60S 3/04 (2013.01); G06F 21/32 (2013.01); G06F 21/86 (2013.01); H02J 7/00045 (2020.01); H02J 7/0013 (2013.01); H02J 7/0045 (2013.01); H02J 7/04 (2013.01); B60L 2210/30 (2013.01); H02J 7/00711 (2020.01); H02J 2207/20 (2020.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a power source; and
a moveable charging arm coupled to the power source and comprising a charging plate for direct electrical contact with an electric vehicle having a contact plate;
wherein the moveable charging arm is operable to transmit direct current pulse power with ground fault testing performed between high voltage pulses directly from the charging plate to the contact plate to charge one or more batteries at the electric vehicle, and
wherein the ground fault testing is performed, at initialization, at a first periodicity, and performed, during a subsequent operation, at a second periodicity that is longer than the first periodicity.