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:
Jun. 28, 2011
Filed:
Nov. 09, 2007
Fabrizio Amisano, Turin, IT;
Aldo Sorniotti, Carmagnola, IT;
Mauro Velardocchia, Turin, IT;
Magneti Marelli Powertrain S.p.A., Corbetta, IT;
Abstract
A method for controlling a power assisted propulsion system in a motor vehicle so as to perform a transition from a lower gear to a higher gear without interrupting a driving torque applied to driving wheels; the propulsion system displays an internal combustion engine provided with a drive shaft and a power assisted transmission including: a power assisted mechanical gearbox provided with a primary shaft connectable to the drive shaft and a secondary shaft coupled to a transmission shaft which transmits motion to the driving wheels; a power assisted clutch interposed between the drive shaft and the primary shaft of the gearbox to couple and decouple the drive shaft to the primary shaft of the gearbox; a power assisted brake; and an epicycloidal gear having three rotating elements: a first rotating element coupled to the drive shaft, a second rotating element coupled to the secondary shaft of the gearbox, and a third rotating element coupled to the brake.