Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Transmission control
Reexamination Certificate
2005-01-25
2005-01-25
Nguyen, Thu V. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Transmission control
C477S034000
Reexamination Certificate
active
06847878
ABSTRACT:
A method for the performance of the gear disengagement in a servo-controlled manual gear change, according to which an oscillation is generated with respect to the angular speed of a primary shaft of the gear change by abruptly opening the relative clutch and the disengagement of the gear is performed around the maximum amplitude of an oscillation half-wave, when this oscillation has caused the angular speed of the primary shaft to be relatively close to the angular speed that the primary shaft has to assume to carry out the engagement of the subsequent gear.
REFERENCES:
patent: 6234933 (2001-05-01), Tornatore
patent: 6468182 (2002-10-01), Brandt et al.
patent: 0276609 (1988-08-01), None
patent: 2431642 (1980-02-01), None
patent: 2 431 642 (1980-02-01), None
EPO Search Report, Dated Feb. 13, 2002.
Amisano Fabrizio
Cimmino Francesco
Hall, Myers, Vande Sande & Pequignot
Magneti Marelli Powertrain S.p.A.
Nguyen Thu V.
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