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:
Apr. 28, 2015
Filed:
Aug. 23, 2013
Applicant:
Magna Powertrain Usa, Inc., Troy, MI (US);
Inventor:
David W. Wenthen, Syracuse, NY (US);
Assignee:
Magna Powertrain USA, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K 17/04 (2006.01); B60K 6/365 (2007.10); F16H 3/72 (2006.01);
U.S. Cl.
CPC ...
F16H 3/725 (2013.01); Y10T 477/20 (2015.01); B60K 6/365 (2013.01); B60K 17/046 (2013.01); F16H 3/724 (2013.01);
Abstract
A continuously variable transmission for transferring drive torque from a powertrain to a driveline in a motor vehicle includes a planetary gearset, a reaction motor, and a control system. The planetary gearset includes a sun gear driven by the powertrain, a ring gear driven by the reaction motor, a carrier driving the driveline, and pinion gears meshed with the sun gear and the ring gear. The control system controls the reaction motor to vary the speed of the ring gear and define a gear ratio between the sun gear and the carrier based on the ring gear speed.