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. 27, 2011
Filed:
Feb. 03, 2009
Andreas Broesse, Munich, DE;
Dieter Polenov, Munich, DE;
Hartmut Proebstle, Augsburg, DE;
Markus Fuchs, Munich, DE;
Michael Roesler, Pullach, DE;
Maximilian Schmidl, Pullach, DE;
Andreas Broesse, Munich, DE;
Dieter Polenov, Munich, DE;
Hartmut Proebstle, Augsburg, DE;
Markus Fuchs, Munich, DE;
Michael Roesler, Pullach, DE;
Maximilian Schmidl, Pullach, DE;
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Abstract
A system and method for supplying voltage to electrical loads in the onboard electrical system of a motor vehicle are provided. The onboard electrical system consists of at least two onboard electrical system regions. The first onboard electrical system region has an electric generator, a vehicle battery, as well as one or more first electrical loads. The second onboard electrical system region has a double-layer capacitor or a so-called supercap and one or more second electrical loads. Between the two onboard electrical system regions, a blocking device is provided, in particular, a semiconductor diode or a power switch, which permits a current flow from the first onboard electrical system region into the second electrical system region and largely prevents a reverse current flow from the second onboard electrical system region into the first onboard electrical system region. The output voltage of the electric generator is raised and the supercap is charged when a first threshold value of the electric voltage in the second onboard electrical system region is undershot.