US 11,951,863 B2
Method and apparatus for management of current load to an electric vehicle charging station in a residence
Richard Lowenthal, Cupertino, CA (US); David Baxter, Monte Sereno, CA (US); and Harjinder Bhade, San Jose, CA (US)
Assigned to CHARGEPOINT, INC., Campbell, CA (US)
Filed by CHARGEPOINT, INC., Campbell, CA (US)
Filed on Jan. 29, 2018, as Appl. No. 15/882,941.
Application 15/882,941 is a continuation of application No. 12/641,285, filed on Dec. 17, 2009, granted, now 9,878,629.
Prior Publication US 2018/0215276 A1, Aug. 2, 2018
This patent is subject to a terminal disclaimer.
Int. Cl. B60L 53/63 (2019.01); B60L 53/10 (2019.01); B60L 53/30 (2019.01); B60L 53/60 (2019.01); H02J 3/14 (2006.01); H02J 7/00 (2006.01); H02J 7/04 (2006.01)
CPC B60L 53/63 (2019.02) [B60L 53/10 (2019.02); B60L 53/11 (2019.02); B60L 53/30 (2019.02); B60L 53/305 (2019.02); B60L 53/60 (2019.02); H02J 3/14 (2013.01); H02J 7/00712 (2020.01); H02J 7/04 (2013.01); Y02T 10/70 (2013.01); Y02T 10/7072 (2013.01); Y02T 90/14 (2013.01); Y04S 30/12 (2013.01); Y04S 30/14 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method in an electric vehicle charging station to assist in regulating electrical load management in a residence, wherein the electric vehicle charging station is coupled through a main circuit breaker in an electrical service panel of the residence with a set of one or more service drop power lines that provide electricity from a power grid to the electric vehicle charging station, the method comprising:
receiving a set of one or more energy readings from a set of one or more current monitors attached to one or more electrical circuits of the residence that each measure current flowing on the one or more electrical circuits of the residence with the exclusion of the electrical circuit providing current to the electrical vehicle charging station, wherein the receiver receives an energy reading from a corresponding current monitor that only transmits the energy reading to the receiver responsive to the corresponding current monitor measuring an amount of current flowing through a corresponding electrical circuit over a first threshold amount, wherein the amounts from the one or more current monitors are separate and apart from any amount of current being drawn by an electric vehicle through the electric vehicle charging station coupling the electric vehicle with the set of service drop power lines;
starting a timer upon receiving the set of energy readings, wherein the timer resets upon subsequent energy readings being received while the timer is not expired;
limiting, based on the received set of energy readings from the one or more current monitors, the amount of current that can be drawn by an electric vehicle through the electric vehicle charging station such that the main circuit breaker does not exceed its rated amount; and
responsive to the timer expiring, removing the limiting of the amount of current that can be drawn by the electric vehicle through the electric vehicle charging station.