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:
Sep. 01, 1998
Filed:
Feb. 20, 1996
Applicant:
Inventor:
Timothy A Droste, Howell, MI (US);
Assignee:
Ford Global Technologies, Inc., Dearborn, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; F16H / ;
U.S. Cl.
CPC ...
701 51 ; 701 67 ; 701 68 ; 192-328 ; 192-329 ; 192-33 ; 192-333 ; 477 62 ; 477169 ;
Abstract
A system for controlling operation of a bypass clutch for a torque converter in an automatic transmission includes a clutch capacity control valve, which connects a source of fluid pressure to a space between a converter clutch friction surface and an impeller casing in response to a force balance produced by variable pressure control signal and an unlock control pressure signal, produced by a converter lockout valve. The a clutch capacity control valve also supplies pressurized fluid to a torus of the torque converter. The valve includes four control lands connecting 10 ports, all of which are active and independent.