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:
Apr. 13, 2021
Filed:
Mar. 15, 2019
Applicant:
Caterpillar Inc., Deerfield, IL (US);
Inventor:
James J. Cress, West Lafayette, IN (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P 17/10 (2006.01); F02P 17/12 (2006.01); F02P 3/05 (2006.01); F02P 3/045 (2006.01);
U.S. Cl.
CPC ...
F02P 17/10 (2013.01); F02P 3/045 (2013.01); F02P 3/05 (2013.01); F02P 17/12 (2013.01);
Abstract
An ignition system for an internal combustion engine includes an ignition coil forming a part of a primary circuit and a secondary circuit, a power source to supply power to the ignition coil, and a controller to determine whether the ignition coil is a recognized ignition coil based on a measured risetime and a measured current level in the primary circuit, the measured current level being lower than that required to create a breakdown voltage of the ignition coil.