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:
Jun. 14, 2016
Filed:
Sep. 23, 2014
Ford Global Technologies, Llc, Dearborn, MI (US);
James Thomas Gooden, Canton, MI (US);
Leo Joseph Esper, Northville, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A service warm-up feature warms transmission fluid to normal operating temperature faster than normal idle without requiring continuous technician attention. This facilitates checking the transmission fluid level. The feature increases the warm-up rate by commanding an increased line pressure and an increased idle speed, which causes more heat to be generated as the fluid flows through restrictions at an increased flow rate with an increased pressure drop. The warm-up rate may be further increased by holding the turbine shaft stationary to increase torque converter heat generation. Various precautions prevent accidental vehicle movement.