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:
Aug. 28, 2012
Filed:
Apr. 06, 2010
Francesco Marcigliano, Modena, IT;
Davide Montosi, Formigine, IT;
Francesco Marcigliano, Modena, IT;
Davide Montosi, Formigine, IT;
Ferrari S.p.A., , IT;
Abstract
A control method of shifting gear in an automatic manual transmission having a twin-clutch gearbox to pass from a current gear to a successive gear, the control method including the steps of receiving a command of gear shifting, opening a first clutch associated with current gear, closing a second clutch which is associated with successive gear and starts transmitting a torque after a delay time interval from the start of the closing, and starting the opening of first clutch, thus decreasing the torque transmitted by first clutch itself before second clutch starts transmitting a torque, such that first clutch decreases the torque transmitted to the driving wheels before the second clutch starts transmitting a torque to the driving wheels.