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:
Apr. 09, 2024

Filed:

Nov. 07, 2019
Applicant:

Komatsu Ltd., Tokyo, JP;

Inventors:

Kenichi Yamada, Tokyo, JP;

Shogo Miyazaki, Tokyo, JP;

Akira Takeno, Tokyo, JP;

Shota Yamawaki, Tokyo, JP;

Assignee:

KOMATSU LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 9/22 (2006.01); E02F 9/20 (2006.01); F04D 13/02 (2006.01); F04D 15/00 (2006.01); F15B 15/18 (2006.01); F16H 61/4008 (2010.01); F16H 61/4157 (2010.01); F16H 61/472 (2010.01);
U.S. Cl.
CPC ...
E02F 9/2253 (2013.01); E02F 9/2004 (2013.01); E02F 9/2292 (2013.01); E02F 9/2296 (2013.01); F04D 13/028 (2013.01); F04D 15/00 (2013.01); F15B 15/18 (2013.01); F16H 61/4008 (2013.01); F16H 61/4157 (2013.01); F16H 61/472 (2013.01);
Abstract

A control device for a power machine includes a target circuit pressure specifying unit configured to specify a target circuit pressure of the hydrostatic continuously variable transmission, a measurement value acquisition unit configured to acquire an actual circuit pressure of the hydrostatic continuously variable transmission, a brake torque determination unit configured to determine a brake torque based on the target circuit pressure and the actual circuit pressure, and a pump control unit configured to control the hydraulic pump based on the brake torque. The brake torque is a torque consumed by the hydraulic pump.


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