IDiyas

For the Inventor, By the Inventor

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.:

US 10364547 B1

PDFFull Text
Date of Patent:
Jul. 30, 2019

Filed:

Jan. 11, 2017

Hybrid work machine

Applicant:

Hitachi Construction Machinery Co., Ltd., Taito-ku, Tokyo, JP;

Inventors:

Masafumi Hita, Ibaraki, JP;

Shinya Imura, Ibaraki, JP;

Hidekazu Moriki, Ibaraki, JP;

Assignee:

Hitachi Construction Machinery Co., Ltd., Tokyo, JP;

Attorney:

Crowell & Moring LLP

Primary Examiner:

James A Shriver, II

Assistant Examiner:

James J Triggs

Int. Cl.
CPC ...
B60W 20/00 (2016.01); E02F 3/43 (2006.01); B60L 1/00 (2006.01); B60L 3/00 (2019.01); B60W 10/08 (2006.01); B60W 10/26 (2006.01); B60W 20/13 (2016.01); E02F 3/42 (2006.01); E02F 9/20 (2006.01); E02F 9/22 (2006.01); B60L 50/16 (2019.01); E02F 3/32 (2006.01);
U.S. Cl.
CPC ...
E02F 3/435 (2013.01); B60L 1/00 (2013.01); B60L 3/00 (2013.01); B60L 50/16 (2019.02); B60W 10/08 (2013.01); B60W 10/26 (2013.01); B60W 20/00 (2013.01); B60W 20/13 (2016.01); E02F 3/425 (2013.01); E02F 9/2091 (2013.01); E02F 9/2203 (2013.01); B60W 2300/17 (2013.01); B60W 2710/30 (2013.01); E02F 3/32 (2013.01); E02F 9/2004 (2013.01); E02F 9/2075 (2013.01); E02F 9/2271 (2013.01); Y02T 10/7077 (2013.01);
Abstract

The lifetime of an electrical storage device is prolonged by reducing a speed of at least relevant one of hydraulic actuators for a specific operation to be performed by a work machine. This hybrid work machine includes a limit control section. When at least one specific operation defined as predetermined one or more among a plurality of work operations performed by the hybrid work machine is performed under condition of a degree of tendency to deterioration of the electrical storage device becoming higher, the limit control section reduces a speed of at least relevant one of the hydraulic actuators at a rate preset for the specific operation depending on the degree of tendency to deterioration of the electrical storage device.

Find Patent Forward Citations

Loading…