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:
Feb. 10, 2009
Filed:
Jan. 19, 2007
Hartmut Proebstle, Augsburg, DE;
Thomas Christ, Auburn Hills, MI (US);
Johannes Von Grundherr, Munich, DE;
Marcus Hafkemeyer, Munich, DE;
Michael Roesler, Pullach, DE;
Hartmut Proebstle, Augsburg, DE;
Thomas Christ, Auburn Hills, MI (US);
Johannes von Grundherr, Munich, DE;
Marcus Hafkemeyer, Munich, DE;
Michael Roesler, Pullach, DE;
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Abstract
An energy storage system for a motor vehicle is provided, including an electric machine, which can be operated at least as a generator, for generating a generator current; a vehicle electrical system battery, which is connected to the electric machine in parallel; a capacitor unit, which is connected to the electric machine in parallel; and a controller for controlling the electric machine. The controller is configured such that if the vehicle is in the boost or braking operating mode, the battery of the vehicle electrical system is charged with a maximum battery charging current, whereas in all other cases the battery of the vehicle electrical system is charged by a battery charging current that is adjusted as a function of the charge state of the battery of the vehicle electrical system. Therefore, in order to adjust the battery charging current as a function of the charge state of the battery of the vehicle electrical system, three different charge states are considered.