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:
Dec. 26, 2014
Ford Global Technologies, Llc, Dearborn, MI (US);
John Eric Rollinger, Troy, MI (US);
Robert Roy Jentz, Westland, MI (US);
William Russell Goodwin, Farmington Hills, MI (US);
Chad Everette Griffin, Pinckney, MI (US);
Casey Dietrich, Ypsilanti, MI (US);
Matt Gerow, Alpena, MI (US);
Scott Steadmon Thompson, Sterling Heights, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
Methods and systems are providing for improving engine coolant level estimation to reduce engine overheating. The level of fluid in a coolant overflow reservoir is inferred based on the fluid level in a hollow vertical standpipe fluidically coupled to the reservoir at top and bottom locations, while the fluid level in the standpipe is estimated based on output from an ultrasonic signal transmitted by a sensor positioned in a recess at the bottom of the vertical standpipe. The sensor uses a combination of raw echo times and processed fluid level data to estimate the fluid level accurately and reliably.