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:
Aug. 18, 2020
Filed:
Aug. 27, 2018
Ford Global Technologies, Llc, Dearborn, MI (US);
Scott Joseph Gittins, Ann Arbor, MI (US);
Andrew James Myrna, Royal Oak, MI (US);
Jessica Dyan Britton, Belleville, MI (US);
Timothy Fedullo, Northville, MI (US);
Samuel Melville Glauber, Northville, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
Air ingestion into a transmission hydraulic system may lead to a number of issues. For example, the time to engage a hydraulically actuated parking mechanism may be excessive. As another example, the pump may not prime properly on a subsequent engine start. The air ingestion issue may be detected based on variability of transmission line pressure. When the line pressure variability exceeds a threshold, actions are taken to mitigate the potential issues.