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. 07, 2012
Filed:
Mar. 21, 2005
Gerald Fritz, Neunkirchen, AT;
Gerhard Fuchs, St. Andrä-Wördern, AT;
Gebhard Hopfmueller, Leobersdorf, AT;
Gerald Fritz, Neunkirchen, AT;
Gerhard Fuchs, St. Andrä-Wördern, AT;
Gebhard Hopfmueller, Leobersdorf, AT;
Continental Automotive GmbH, Hannover, DE;
Abstract
Method for protection of a switching device controlled by a control unit, through which an electric drive can be disengaged during the period of an overvoltage surge caused by a load dump in the electrical system of a vehicle, in which the drive current rises to a maximum value in a first slot within the duration of the overvoltage surge and drops in the second slot connected to the first time slot, with the following process steps: recognition of a load dump by recording a limit voltage value in the electrical system by the control unit, disengagement of the electric drive in the event of a load dump at a switching time stipulated by the control unit, which lies after the first time slot.