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:
Jan. 02, 2007
Filed:
Feb. 26, 2004
Method for producing a load sharing arrangement of planet pinions and gears for a ravigneaux gearset
Bernard Simon, Troy, MI (US);
Bernard Simon, Troy, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
The method includes the steps of determining a number of gear teeth for each gear and pinion that, in combination, would produce desired gear ratios. Current gearset parameters including distances and angles relating the positions of the gears and pinions are determined. For a predetermined angular rotation of a selected gear or pinion, and using the current gearset parameters, an error is determined representing a difference in phases of a tooth on the selected gear or pinion into its mesh cycle. A first phase is determined along a first portion of a drive path of meshing gears and pinions, and a second phase is determined along a second portion of the drive path distinct from the first portion. One or more of the current gearset parameters are repetitively changed to determine a set of correspond optimal gearset parameters, for which the error is equal to or less than an acceptable error. Then a gearset having the optimal gearset parameters is produced.