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, 2019
Filed:
Aug. 22, 2016
Doosan Infracore Co., Ltd., Incheon, KR;
DOOSAN INFRACORE CO., LTD., Incheon, KR;
Abstract
Disclosed are a construction machine such as an excavator having a hydraulic system and a method for controlling the construction machine. The construction machine includes: a hydraulic pump which is operated by a driving source to supply a working fluid; an actuator which operates by being supplied with the working fluid from the hydraulic pump; a spool which controls a flow of the working fluid supplied to the actuator from the hydraulic pump; an operating unit which controls an operation of the actuator; a memory unit which stores at least two operating speed profiles for the actuator; an operating speed selecting unit which selects any one of the at least two operating speed profiles stored in the memory unit; and a control unit which controls a discharge flow rate of the hydraulic pump based on the operating speed profile selected by the operating speed selecting unit.