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:
Nov. 05, 2019
Filed:
May. 11, 2015
Dana Italia Spa, Arco, IT;
Giulio Ornella, Arco, IT;
Fabrizio Zendri, Rovereto, IT;
Lorenzo Serrao, Nago-Torbole, IT;
Ettore Cosoli, Padua, IT;
Dana Belgium, N.V., Bruges, BE;
Abstract
A hydraulic hybrid powertrain for a vehicle is disclosed. The powertrain has an internal combustion engine selectively drivingly engaged with an input of a stepped-ratio transmission through a torque converter and through a speed direction changing device. An output of the stepped-ratio transmission is selectively drivingly engaged with a vehicle output. An intermediate gear set is drivingly engaged with the speed direction changing device and drivingly engaged with the input of the stepped-ratio transmission. A hydraulic machine in fluid communication with a hydraulic accumulator assembly, a transmission shaft of the hydraulic machine being drivingly engaged or selectively drivingly engaged with the intermediate gear set for providing energy to the intermediate gear set and for absorbing energy from the intermediate gear set. Also disclosed are methods of operating the hydraulic hybrid powertrain.