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. 03, 2010
Filed:
Jan. 25, 2007
Steve G. Thomas, Bloomfield Hills, MI (US);
Donald E. Hoffman, Canton, MI (US);
Gregory D. Goleski, Clarkston, MI (US);
Steve G. Thomas, Bloomfield Hills, MI (US);
Donald E. Hoffman, Canton, MI (US);
Gregory D. Goleski, Clarkston, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A multiple-speed automatic transmission includes an input, output, a first gear unit drivable connected to the input and including a component rotating at the speed of the input and a first gear unit output, the first gear unit producing a gear ratio of a speed of the input and a speed of a first gear unit output, the gear ratio being greater than unity, and a Ravigneaux gear unit for producing multiple ratios of the speed of the input and a speed of the output, the Ravigneaux gear unit being driveably connected to first, second, third, fourth, fifth and sixth rotating members and the output. A first clutch connects the first gear unit output and the first rotating member; a second clutch connects the first gear unit output and the second rotating member; a third clutch connects the third rotating member and one of the input and the rotating component, a fourth clutch connects the fourth rotating member and one of the input and the component; a first brake holds the fifth rotating member against rotation; and a second brake holds the sixth rotating member against rotation.