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.

Date of Patent:
Jan. 30, 2024

Filed:

May. 04, 2020
Applicant:

Volvo Construction Equipment Ab, Eskilstuna, SE;

Inventors:

Karl Uebel, Kvicksund, SE;

Per Mattsson, Sölvesborg, SE;

Daniel Stålberg, Eskilstuna, SE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 9/20 (2006.01); E02F 9/22 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2075 (2013.01); E02F 9/202 (2013.01); E02F 9/2091 (2013.01); E02F 9/2217 (2013.01); E02F 9/2292 (2013.01);
Abstract

A power system for a working machine, including a prime mover drivingly connectable to a main shaft; a planetary gear set including a rotatable first member drivingly connected to the main shaft, a rotatable second member and a rotatable third member for propulsion of the working machine; a hydraulic system including at least one hydraulic actuator for performing a working function of the working machine; an electric energy storage system; a first hydraulic machine mechanically coupled to the main shaft and hydraulically coupled to the hydraulic system; a first electric machine mechanically coupled to the main shaft; a second electric machine mechanically coupled to the rotatable second member, wherein the electric energy storage system is electrically connected to the first and second electric machines, and wherein the power system further includes a second hydraulic machine mechanically coupled to the rotatable second member and hydraulically coupled to the hydraulic system.


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