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:
Sep. 18, 2012
Filed:
Jun. 07, 2010
Jason G. Bauman, Birmingham, MI (US);
Thomas M. O'brien, Troy, MI (US);
Jason G. Bauman, Birmingham, MI (US);
Thomas M. O'Brien, Troy, MI (US);
Lear Corporation, Southfield, MI (US);
Abstract
A vehicle power management system (VPMS) controls a charging voltage of a battery in a vehicle, wherein a VPMS controller evaluates state-of-charge (SOC), battery temperature, and battery charging current to determine a charge mode. A rapid charge mode is used when the SOC is less than a first threshold, wherein the VPMS controller selects a target rapid charge voltage, compensates the target rapid charge voltage for the battery temperature, and transmits the compensated rapid charge voltage to the charging source. A normal charge mode is used when the SOC is greater than the first threshold and less than a second threshold, wherein a target normal charge voltage is selected and compensated which is less than the target rapid charge voltage. A trickle charge mode is used when the SOC is greater than the second threshold, wherein a target trickle charge voltage is less than the target normal charge voltage. The VPMS controller also enters the trickle charge mode in the event of a failure to receive the SOC, battery temperature, or battery charging current from a battery monitor.