US 12,292,465 B2
System for detecting circuit anomalies in trailer wiring
Sankalp Pampattiwar, Madison, IN (US); Yogesh Kubal, Madison, IN (US); Shengjie Tang, Madison, IN (US); and Cesar Perez-Bolivar, Madison, IN (US)
Assigned to Grote Industries, Inc., Madison, IN (US)
Filed by Grote Industries, Inc., Madison, IN (US)
Filed on Dec. 5, 2022, as Appl. No. 18/074,740.
Application 18/074,740 is a continuation of application No. 16/695,957, filed on Nov. 26, 2019, granted, now 11,536,762.
Claims priority of provisional application 62/772,847, filed on Nov. 29, 2018.
Prior Publication US 2023/0243882 A1, Aug. 3, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G01R 31/08 (2020.01); G01R 31/00 (2006.01); G06F 11/00 (2006.01); G07C 5/00 (2006.01); G07C 5/08 (2006.01); G08C 15/00 (2006.01); H02B 1/20 (2006.01); H04B 10/035 (2013.01); H04J 1/16 (2006.01); H04J 3/14 (2006.01); H04L 1/00 (2006.01); H04L 12/26 (2006.01); H04L 12/40 (2006.01); H04L 43/10 (2022.01); H04W 24/02 (2009.01); H04W 24/06 (2009.01); H04L 43/50 (2022.01); H04W 24/00 (2009.01)
CPC G01R 31/007 (2013.01) [G07C 5/008 (2013.01); G07C 5/0816 (2013.01); H02B 1/20 (2013.01); H04B 10/035 (2013.01); H04L 12/40013 (2013.01); H04L 43/10 (2013.01); H04W 24/02 (2013.01); H04W 24/06 (2013.01); H04L 2012/40215 (2013.01); H04L 2012/40273 (2013.01); H04L 43/50 (2013.01); H04W 24/00 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A system for detecting anomalies in electrical wiring in a truck trailer, comprising:
a nosebox mounted to the truck trailer, the nosebox having terminals for connecting six separate power cables and a ground cable to a truck tractor;
wherein the system includes six separate master current measuring circuits electrically connected to the six separate power cables and to six separate power distribution circuits which are included in the trailer, the six separate power distribution circuits electrically connected to one or more slave current measuring circuits;
a master current measuring circuit that includes:
a master shunt resistor electrically connected in series upstream from a power distribution circuit; and
a master microcontroller with a first and second input electrically connected in parallel to the master shunt resistor;
wherein the master microcontroller is configured to measure current passing through the master shunt resistor indicating a master current received from a truck tractor;
one or more slave current measuring circuits electrically connected downstream from the master current measuring circuit and upstream from one or more trailer components,
wherein the slave current measuring circuits are:
a) responsive to the master current measuring circuit;
b) electrically connected to at least one of the trailer components; and
c) configured to measure a component current passing through the at least one of the trailer components;
wherein the master current measuring circuit is configured to:
accept component current measurements from the slave current measurement circuits;
measure the master current; and
generate a notification of a circuit anomaly when a difference between the master current and the component current from one or more individual slave current measurement circuits is greater than a predetermined threshold value.