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. 25, 2024
Filed:
Mar. 26, 2020
Hitachi Construction Machinery Tierra Co., Ltd., Koka, JP;
Yuichi Ogawa, Koka, JP;
Takeshi Ishii, Hino-cho, JP;
Seiichi Kihara, Koka, JP;
Kiwamu Takahashi, Moriyama, JP;
Abstract
It is made possible to perform power reduction control during non-operation of control levers, and suppress power consumption of a power source when a control lever is moved by an erroneous operation, and thus reduce energy consumption. Accordingly, a controllerperforms the power reduction control when a non-operation time exceeds a set time after a transition is made from a state in which at least one control lever is operated to a non-operation state in which none of the control levers is operated, and the controllercancels the power reduction control when at least one control lever is operated in a state in which the power reduction control is performed. In addition, the set time is set as a first set time Tthwhen an operation time until at least one of leversandmakes a transition to the non-operation state is longer than a monitoring time Tth, and the set time is set as a second set time Tthshorter than the first set time Tthwhen the operation time until the at least one control lever makes a transition to the non-operation state is shorter than the monitoring time Tth