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.

Date of Patent:
Sep. 28, 1999

Filed:

Jun. 04, 1998
Applicant:
Inventors:

Bryant David Grytzelius, Westland, MI (US);

Bruce Kinston Lyon, South Lyon, MI (US);

Joseph James Gallo, Fraser, MI (US);

John Paul Gorys, Canton, MI (US);

Jeffrey James Tumavitch, Livonia, MI (US);

Paul Christian Stallman, Canton, MI (US);

Stephanie Ann Skown, Novi, MI (US);

Assignee:

Ford Global Technologies, Inc., Dearborn, MI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
192-331 ; 701 67 ;
Abstract

A method for determining whether the torque converter bypass clutch of an automotive transmission should be relocked or a relock should be prevented includes maintaining in a delay counter the number of such relocks that occur, continuously determining in a counter decrement timer the length of the period since the last relock occurred, determining the output of a timer for decrementing the count of the delay counter, decrementing the count of the delay counter and clearing the counter decrement timer provided the period of the counter decrement timer is greater than the output of the timer for decrementing the count of the delay counter.


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