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. 06, 2014
Filed:
Dec. 16, 2011
Jörgen Engström, Grödinge, SE;
Mikael Bergquist, Hägersten, SE;
Jörgen Engström, Grödinge, SE;
Mikael Bergquist, Hägersten, SE;
Scania CV AB, , SE;
Abstract
A propulsion system for a vehicle has output shaft () of a combustion engine (), which is connected to a first component () of a planetary gear so that they rotate at a first speed (n). An input shaft () of a gearbox () is connected to a second component () of the planetary gear so that they rotate at a second speed (n). An electrical machine is connected to a third component () of the planetary gear so that the third component () rotates at a third speed (n). A control unit () estimates in appropriate operating situations a desired speed (n) for the gearbox input shaft (). The unit receives information about the speed (n) of the engine output shaft (). It causes the electrical machine to give the third component () of the planetary gear a speed (n) which in conjunction with the speed (n) of the engine output shaft () results in the gearbox input shaft () assuming the desired speed (n).