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:
Mar. 05, 2019
Filed:
Mar. 01, 2017
GM Global Technology Operations Llc, Detroit, MI (US);
Scott W. Jorgensen, Bloomfield Township, MI (US);
Bob R. Powell, Jr., Birmingham, MI (US);
Robert S. Conell, Sterling Heights, MI (US);
Mark W. Verbrugge, Troy, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
In a vehicle, a first energy storage device has a first direct current (DC) operating voltage; and a second energy storage device has a second DC operating voltage. The second DC operating voltage is greater than or less than the first DC operating voltage the first DC operating voltage. A switch is connected between the first and second energy storage devices. A fault diagnostic module, while an internal combustion engine of the vehicle is shut down, diagnoses that a fault is present when a voltage of the first energy storage device is less than a predetermined DC voltage. The predetermined DC voltage is less than the first DC operating voltage. A switch control module closes the switch when the fault is diagnosed. A starter control module, when the fault is diagnosed, applies power to a starter from the second energy storage device via the switch.