US 11,870,288 B1
Intelligent battery system and method of operation
Francois Renaud-Byrne, Etobicoke (CA); Michael Pinosa, Mississauga (CA); and Xiongyi Cui, Etobicoke (CA)
Filed by Francois Renaud-Byrne, Etobicoke (CA); Michael Pinosa, Mississauga (CA); and Xiongyi Cui, Etobicoke (CA)
Filed on May 19, 2021, as Appl. No. 17/325,047.
Int. Cl. H02J 7/00 (2006.01); G01R 31/382 (2019.01); G01R 31/396 (2019.01); H01M 10/42 (2006.01)
CPC H02J 7/0048 (2020.01) [G01R 31/382 (2019.01); G01R 31/396 (2019.01); H01M 10/425 (2013.01); H02J 7/007194 (2020.01); H01M 2010/4271 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A battery system, comprising:
at least two batteries, each battery comprising a battery management system;
a plurality of sensors for sensing battery operation data;
at least one external connection port;
wherein:
at least two battery management systems of the at least two batteries are coupled to the at least one external connection port; and
at least two battery management systems of the at least two batteries store machine-executable instructions, that when executed, cause the at least one battery management system to communicate battery operation data to at least one external load;
wherein:
one battery management system of the at least two batteries is designated as a master and the remaining battery management systems of the at least two batteries are designated as slaves; and
the battery management system designated as the master controls overall operations of the battery system.
 
13. A method of operating a battery system, comprising:
determining, by at least one battery management system of a plurality of battery management systems each corresponding to a respective battery of the battery system, a master battery management system of the plurality of battery management systems;
transmitting, by the master battery management system, battery operation data to an external load connected to an external connection port of the battery system over power lines via a CANBUS; and
determining, by the master battery management system, when a new battery is integrated with the battery system based on at least state of charge of the batteries of the battery system
wherein:
the external connection port is configured to transmit power from the battery system to the external load and power from an external charger to the battery;
all battery management systems except the master battery management system are designated as slaves;
the master battery management system controls overall operations of the battery system; and
the master battery management system communicates with the remaining battery management systems over power lines via CANBUS.