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:
Oct. 06, 2020
Filed:
Feb. 12, 2019
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
In Kwang Yoo, Ann Arbor, MI (US);
Michiel J. Van Nieuwstadt, Ann Arbor, MI (US);
Rui Chen, Farmington, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F01M 13/00 (2006.01); F01M 1/18 (2006.01); F02D 41/22 (2006.01); F02D 41/06 (2006.01); F02N 11/10 (2006.01);
U.S. Cl.
CPC ...
F01M 13/0011 (2013.01); F01M 1/18 (2013.01); F01M 2013/0038 (2013.01); F01M 2013/0083 (2013.01); F01M 2013/0088 (2013.01); F01M 2013/0094 (2013.01); F02D 41/062 (2013.01); F02D 41/22 (2013.01); F02N 11/10 (2013.01);
Abstract
Methods and systems are provided for indicating crankcase breach due to disconnection of a crankcase vent tube from an engine on a clean air side or broken crankcase vent tube. In one example, a maximum possible change in crankcase vent tube pressure is estimated for each pedal transient of a drive cycle. The change for a plurality of transients in averaged and compared to a threshold to identify vent tube disconnection.