The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 2025
Filed:
Mar. 21, 2023
Applicant:
Transportation Ip Holdings, Llc, Norwalk, CT (US);
Inventors:
Assignee:
Transportation IP Holdings, LLC, Norwalk, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60L 3/00 (2019.01); B60L 3/04 (2006.01);
U.S. Cl.
CPC ...
B60L 3/0069 (2013.01); B60L 3/0046 (2013.01); B60L 3/04 (2013.01);
Abstract
A ground impedance and fault detection system may include a controller that can identify a location of a ground fault in a circuit. The circuit also may include one or more positive contactors connected with a positive portion of the bus between battery strings and a load and a negative bus contactor coupled with a negative portion of the bus between the battery strings and the loads. The controller may identify the ground fault by opening the one or more positive contactors and closing the negative bus contactor, measuring the voltages using the impedance devices, and comparing the voltages that are measured.