US 11,990,776 B2
Bi-stable relay
Ronald J. Dulle, Mequon, WI (US)
Assigned to CPS Technology Holdings LLC, New York, NY (US)
Filed by CPS Technology Holdings LLC, New York, NY (US)
Filed on Mar. 25, 2021, as Appl. No. 17/211,956.
Application 17/211,956 is a continuation of application No. 15/253,181, filed on Aug. 31, 2016, granted, now 10,974,606.
Prior Publication US 2021/0206278 A1, Jul. 8, 2021
Int. Cl. H02J 7/00 (2006.01); B60L 1/00 (2006.01); B60L 3/04 (2006.01); B60L 50/60 (2019.01); B60L 58/10 (2019.01); B60L 58/21 (2019.01); H02J 3/28 (2006.01); H02J 9/06 (2006.01)
CPC H02J 7/0014 (2013.01) [B60L 1/00 (2013.01); B60L 3/04 (2013.01); B60L 50/60 (2019.02); B60L 58/10 (2019.02); B60L 58/21 (2019.02); H02J 3/28 (2013.01); H02J 7/0013 (2013.01); H02J 7/0029 (2013.01); H02J 9/061 (2013.01); H02J 2207/10 (2020.01); H02J 2310/48 (2020.01); Y02T 10/70 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for controlling operations of components in a battery system having a first power source and a second power source different from the first power source, the method comprising: connecting and disconnecting the second power source to a direct current (DC) bus via a bi-stable relay controlled by a controller; detecting, at the controller via a sensor, a sensor signal indicative of a current state of the bi-stable relay; determining a control signal to send to the bi-stable relay based on the current state and a desired state of the bi-stable relay; and sending, via the controller, the control signal to the bi-stable relay to control operation of the bi-stable relay to the desired state; and receiving power at the controller from the first power source, the second power source, or the first power source and the second power source, the controller and the control signal being powered by a power, including using the first power source as the power for the controller and the control signal when the controller receives adequate power from the first power source and using the second power source as for the power for the controller and the control signal when the controller does not receive adequate power from the first power source, wherein the controller can receive power at the controller from the second power source irrespective of whether the bi-stable relay connects or disconnects the second power source to the DC bus.
 
7. A method for controlling operations of components in a battery system, the method comprising: receiving, via a controller, a first power from a primary source; receiving, via the controller, a second power from one or more battery cells on a string; controlling, via the controller, operation of a bi-stable relay, upon detection of a sensor signal indicative at least substantially of a current state of the bi-stable relay, using the first power from the primary source to electrically connect or electrically disconnect the one or more battery cells; and controlling, via the controller, the operation of the bi-stable relay, upon the detection of a sensor signal indicative at least substantially of the current state of the bi-stable relay, using the second power from the one or more battery cells in an event where the primary source does not provide the first power, by: electronically disconnecting the one or more battery cells from a bus of the battery system; and receiving the second power, at the controller, from the one or more battery cells while disconnected from the bus.