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:
Jun. 15, 2021
Filed:
Jan. 21, 2019
Applicant:
Komatsu Ltd., Tokyo, JP;
Inventor:
Takahisa Oasa, Tokyo, JP;
Assignee:
KOMATSU LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 61/421 (2010.01); F16H 61/06 (2006.01); E02F 9/20 (2006.01); E02F 9/22 (2006.01); F16H 59/36 (2006.01); F16H 61/431 (2010.01); F16H 61/44 (2006.01);
U.S. Cl.
CPC ...
F16H 61/421 (2013.01); E02F 9/2062 (2013.01); E02F 9/2225 (2013.01); E02F 9/2267 (2013.01); E02F 9/2278 (2013.01); F16H 59/36 (2013.01); F16H 61/065 (2013.01); F16H 61/431 (2013.01); F16H 61/44 (2013.01); F16H 2059/366 (2013.01);
Abstract
When the vehicle speed increases and reaches a predetermined switching threshold, the controller reduces the displacement of the first travel motor and controls the flow rate control device to offset a flow rate excess in the hydraulic circuit in accordance with the reduction in the displacement of the first travel motor. After the vehicle speed has reached the switching threshold, the controller executes switching control to switch the clutch from an engaged state to a disengaged state.