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:
Jan. 12, 2021
Filed:
Jun. 05, 2017
Applicants:
Dirk Wüstenhagen, Auma, DE;
Dejan Kienzle, Heilbronn, DE;
Douglas Sprunger, Columbus, IN (US);
Inventors:
Assignees:
BorgWarner Ludwigsburg GmbH, Ludwigsburg, DE;
Cummins Inc., Indianapolis, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P 17/12 (2006.01); F02P 3/04 (2006.01); F02P 11/02 (2006.01); H01T 13/60 (2011.01); F02P 3/045 (2006.01);
U.S. Cl.
CPC ...
F02P 17/12 (2013.01); F02P 3/04 (2013.01); F02P 3/0407 (2013.01); F02P 11/02 (2013.01); H01T 13/60 (2013.01); F02P 3/0453 (2013.01);
Abstract
A method for determining a need for changing a spark plug of a combustion engine, comprising the following steps: monitoring a current flowing through the spark plug, analyzing the current and thereby determine a time interval that is indicative for the time between application of a voltage to the spark plug and formation of an arc discharge between electrodes of the spark plug, creating a signal indicative of the need to change the spark plug if the duration of the determined time interval is outside predefined bounds.