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:
Jun. 15, 2004
Filed:
Jan. 11, 2002
Applicant:
Inventors:
Michael Degen, Bad Homburg, DE;
Lothar Erle, Kelkheim, DE;
Assignee:
Siemens Aktiengesellschaft, München, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02P 3/45 ;
U.S. Cl.
CPC ...
F02P 3/45 ;
Abstract
A method for switching on an inductive load, in particular an ignition coil, whose current is intended repeatedly to reach a predefined variable end value at a respectively predefined variable time, includes measuring the time interval between the switching-on action and reaching at least one predefined intermediate value. This time interval and the at least one predefined intermediate value are used to calculate the anticipated time from switching on until the end value is reached. A following switching-on action is carried out at the calculated time before the respectively predefined time.