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:
Aug. 29, 2017
Filed:
May. 13, 2015
Ford Global Technologies, Llc, Dearborn, MI (US);
Mark Eifert, Hessen, DE;
Peter Schmitz, Aachen NRW, DE;
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A system and method for charging a vehicle having a first battery, such as a high-voltage traction battery, and a second battery, such as a low-voltage battery, include controlling a DC converter or relay to effectively decouple the second battery from the converter when the vehicle is connected to an external power source to reduce or prevent damage to the second battery from extended or prolonged charging. The second battery may be effectively decoupled from the converter by controlling the relay or converter voltage based on state of charge of the second battery so that substantially zero current flows to and from the second battery relative to the converter and any vehicle low voltage consumers/accessories.