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:
Jul. 30, 2019
Filed:
Jul. 11, 2017
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Aed M. Dudar, Canton, MI (US);
Chingpo Liu, Novi, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/04 (2006.01); B60W 20/50 (2016.01); F02D 41/00 (2006.01); F02D 29/02 (2006.01); F02M 35/10 (2006.01); F02D 41/04 (2006.01); F02D 41/22 (2006.01); F02M 25/08 (2006.01); F02D 13/02 (2006.01); F02D 41/02 (2006.01); F02N 11/08 (2006.01);
U.S. Cl.
CPC ...
B60W 20/50 (2013.01); F02D 13/0203 (2013.01); F02D 29/02 (2013.01); F02D 41/0002 (2013.01); F02D 41/0037 (2013.01); F02D 41/0055 (2013.01); F02D 41/042 (2013.01); F02D 41/22 (2013.01); F02M 25/089 (2013.01); F02M 35/10222 (2013.01); B60W 2510/06 (2013.01); F02D 41/0225 (2013.01); F02D 2041/001 (2013.01); F02D 2041/0095 (2013.01); F02D 2041/225 (2013.01); F02D 2200/0406 (2013.01); F02N 11/0814 (2013.01); Y02T 10/18 (2013.01); Y02T 10/42 (2013.01); Y02T 10/47 (2013.01); Y10S 903/905 (2013.01);
Abstract
Methods and systems are provided for detecting leaks in an intake manifold of an engine. In one example, a method may include closing all intake valves of all cylinders of the engine during an engine shut down responsive to vacuum in the intake manifold reaching a pre-determined vacuum level. The method may further include indicating a leak in the intake manifold responsive to a change in a level of vacuum in the intake manifold after closing all the intake valves of all cylinders.