Method of detecting false neutral in an automated...

Machine element or mechanism – Gearing – Interchangeably locked

Reexamination Certificate

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Reexamination Certificate

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10517850

ABSTRACT:
A method and system for controlling downshifting in an automated mechanical transmission system (10) utilized on a vehicle. When an automatic power downshift from a currently engaged ratio (GR) is required, the engine acceleration (EA) is monitored and compared with an engine free acceleration (EFA) to detect a false Neutral condition and to take appropriate action accordingly. Alternatively, a false Neutral condition is detected when the Absolute Value of the rotational speed of the output shaft (OS) times the currently engaged gear ratio (GR) minus the rotational speed of the input shaft (IS) is less than a predetermined value (ABS((OS*GR)−IS)).

REFERENCES:
patent: 4361060 (1982-11-01), Smyth
patent: 4576065 (1986-03-01), Speranza et al.
patent: 4648290 (1987-03-01), Dunkley et al.
patent: 4702127 (1987-10-01), Cote
patent: 4722248 (1988-02-01), Braun
patent: 4850236 (1989-07-01), Braun
patent: 4916979 (1990-04-01), Irwin
patent: 4933850 (1990-06-01), Wheeler
patent: 4945484 (1990-07-01), Cote et al.
patent: 5086659 (1992-02-01), Earp
patent: 5157607 (1992-10-01), Stainton et al.
patent: 5272939 (1993-12-01), Markyvech et al.
patent: 5315514 (1994-05-01), Steeby et al.
patent: 5335566 (1994-08-01), Genise et al.
patent: 5389053 (1995-02-01), Steeby et al.
patent: 5409432 (1995-04-01), Steeby
patent: 5411450 (1995-05-01), Gratton et al.
patent: 5425689 (1995-06-01), Genise
patent: 5435212 (1995-07-01), Menig
patent: 5479345 (1995-12-01), Amsallen
patent: 5487004 (1996-01-01), Amsallen
patent: 5489247 (1996-02-01), Markyvech et al.
patent: 5490063 (1996-02-01), Genise
patent: 5509867 (1996-04-01), Genise
patent: 5533946 (1996-07-01), Markyvech
patent: 5582069 (1996-12-01), Genise
patent: 5620392 (1997-04-01), Genise
patent: 5713445 (1998-02-01), Davis et al.
patent: 5755639 (1998-05-01), Genise et al.
patent: 5911787 (1999-06-01), Walker
patent: 5974354 (1999-10-01), Janecke et al.
patent: 6055469 (2000-04-01), Shoji et al.
patent: 6266571 (2001-07-01), Fado et al.
patent: 6840126 (2005-01-01), Stine et al.
patent: 0 242 086 (1990-06-01), None
patent: 0 241 216 (1991-06-01), None
patent: 0 725 237 (1998-04-01), None
patent: 0 857 897 (1998-08-01), None
International Search Report (3 pages).

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