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:
May. 10, 2022
Filed:
Sep. 03, 2019
Ford Global Technologies, Llc, Dearborn, MI (US);
Johann Kirchhoffer, Cologne, DE;
Philip Stauss, Pulheim, DE;
Christopher Chumchal, Cologne, DE;
Sebastian Schneider, Cologne, DE;
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
The invention relates to a method for operating an on-board electrical network () of a motor vehicle (), with a first voltage circuit (I) and a second voltage circuit (II), the first voltage circuit (I) having a first operating voltage which is higher than a second operating voltage in the second voltage circuit (II), the first voltage circuit (I) being connected to the second voltage circuit (II) via a DC-DC converter (), and the first voltage circuit (I) having a battery () and the second voltage circuit (II) having a main battery (), characterized in that the second voltage circuit (II) has an additional third auxiliary battery (), and wherein by means of a changeover switch assembly () components of the motor vehicle () are supplied with electrical energy from the main battery () and/or the auxiliary battery (), and in that the main battery () is disconnected from the second voltage circuit (II) by means of an isolating switch () during a startup mode.