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:
May. 09, 2017
Filed:
Oct. 17, 2013
Avl List Gmbh, Graz, AT;
Stefan Lichtenegger, St. Stefan, AT;
Konstantin Erjawetz, Voitsberg, AT;
AVL List GmbH, Graz, AT;
Abstract
A transmission includes a drive train having a primary drive with a primary drive shaft (), particularly for a vehicle, and includes a Ravigneaux planetary gearset () which has a double planetary gear with two sun gear shafts (), one planetary carrier shaft () and at least one ring gear shaft (), as well as an upstream single planetary gearset () which is designed as a reduction gearing and includes the gear elements of sun gear (), planetary carrier () and ring gear (). A first of the gear elements of the single planetary gear set (), particularly the sun gear (), is designed to be fixed to a housing. At least one first element of the Ravigneaux planetary gear set () is drive-connected, preferably permanently, to a secondary drive () which is particularly preferred to be in the form of an electrical machine.