US 12,085,618 B2
Battery serving network with multiple loads with individual voltage sensing at each load
Patrick Troy Gray, Cedar Park, TX (US); Michael Shawn Gray, Dripping Springs, TX (US); Timothy W. Markison, Mesa, AZ (US); and Shayne X. Short, College Station, TX (US)
Assigned to SIGMASENSE, LLC., Wilmington, DE (US)
Filed by SIGMASENSE, LLC., Wilmington, DE (US)
Filed on May 31, 2022, as Appl. No. 17/804,735.
Claims priority of provisional application 63/195,556, filed on Jun. 1, 2021.
Prior Publication US 2022/0381842 A1, Dec. 1, 2022
Int. Cl. G01R 31/3835 (2019.01); G01R 31/371 (2019.01); G01R 31/3842 (2019.01); H02J 7/00 (2006.01)
CPC G01R 31/3835 (2019.01) [G01R 31/371 (2019.01); G01R 31/3842 (2019.01); H02J 7/0047 (2013.01); H02J 7/0063 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A battery sensor system comprising:
a battery operably coupled to a plurality of loads via a wired connection, wherein:
a first load of the plurality of loads is operably coupled to a terminal of the battery via a first portion of the wired connection; and
a second load of the plurality of loads is operably coupled to the terminal of the battery via a second portion of the wired connection;
a first drive sense circuit operably coupled to a first point that is common to the first portion and the second portion and that is proximate to the battery, wherein, when enabled, the first drive sense circuit is configured to:
sense a first voltage corresponding to the first point;
a second drive sense circuit operably coupled to a second point of the wired connection that is proximate to the first load of the plurality of loads, wherein, when enabled, the second drive sense circuit is configured to:
sense a second voltage corresponding to the second point, wherein the second voltage is different than the first voltage based on a first impedance of the wired connection between the first point and the second point;
a third drive sense circuit coupled to a third point of the wired connection that is proximate to the second load of the plurality of loads, wherein, when enabled, the third drive sense circuit is configured to:
sense a third voltage corresponding to the third point, wherein the third voltage is different than the first voltage based on a second impedance of the wired connection between the first point and the third point;
memory that stores operational instructions; and
one or more processing modules operably coupled to the first drive sense circuit, the second drive sense circuit, and the third drive sense circuit, wherein, when enabled, the one or more processing modules are configured to execute the operational instructions to:
process the first voltage, the second voltage, and the third voltage to determine operational status of the battery sensor system.