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:
May. 26, 2020
Filed:
Oct. 13, 2017
Applicant:
Eaton Corporation, Cleveland, OH (US);
Inventors:
Douglas Anthony Hughes, Novi, MI (US);
Matthew Richard Busdiecker, Beverly Hills, MI (US);
Dale Arden Stretch, Novi, MI (US);
Assignee:
Eaton Intelligent Power Limited, Dublin, IE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 1/24 (2006.01); F01L 1/18 (2006.01); F01L 13/00 (2006.01); F01L 1/053 (2006.01);
U.S. Cl.
CPC ...
F01L 1/2405 (2013.01); F01L 1/185 (2013.01); F01L 13/0005 (2013.01); F01L 13/0036 (2013.01); F01L 2001/0537 (2013.01); F01L 2013/001 (2013.01); F01L 2013/101 (2013.01); F01L 2105/00 (2013.01);
Abstract
A method of operating an internal combustion engine that includes a valvetrain having a rocker arm assembly including a rocker arm on which a latch pin is mounted. An actuator for the latch pin, including an electromagnet, is mounted separately from the rocker arm. Rocker arm position information is obtained by gathering and analyzing data relating to a current or voltage in an electrical circuit that is operative to power the electromagnet. The rocker arm position information is used to perform a diagnostic.