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:
Apr. 09, 2019
Filed:
Sep. 09, 2016
Ford Global Technologies, Llc, Dearborn, MI (US);
Wesley Edward Burkman, Dearborn, MI (US);
Robert Bolduc, Northville, MI (US);
FORD GLOBAL TECHNOLOGIES, LLC, Dearborn, MI (US);
Abstract
A high-voltage interlock system includes a first module including a contactor and a shunt connection, and a second module, having first and second circuits, coupled with the first module via first and second wires. The second module, in response to impedance of the shunt connection exceeding a threshold, inhibits a signal to engage the contactor. The impedance is measured across the first and second wires while the first wire is multiplexed with low-voltage power to energize a coil of the contactor, and the second circuit is multiplexed with the signal to engage the contactor.