Invention Grant
- Patent Title: Work vehicle and work vehicle control method
- Patent Title (中): 作业车辆和作业车辆控制方法
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Application No.: US14380851Application Date: 2014-04-28
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Publication No.: US09382693B2Publication Date: 2016-07-05
- Inventor: Takeo Yamada , Tomohiro Nakagawa
- Applicant: KOMATSU LTD.
- Applicant Address: JP Tokyo
- Assignee: KOMATSU LTD.
- Current Assignee: KOMATSU LTD.
- Current Assignee Address: JP Tokyo
- Agency: Global IP Counselors, LLP
- International Application: PCT/JP2014/061828 WO 20140428
- International Announcement: WO2014/192481 WO 20141204
- Main IPC: E02F9/22
- IPC: E02F9/22 ; E02F9/14 ; F15B11/10 ; F15B13/04 ; F16K31/42 ; G05D7/06 ; E02F9/20 ; F15B21/08

Abstract:
A hydraulic excavator is provided with an arm cylinder, an arm switching valve, a sixth pilot pressure control valve, a sixth electromagnetic proportional valve, a sixth upstream pilot flow path, a sixth hydraulic pressure sensor, and a control section. The control section selects at least one item of current value information from a plurality of items of current value information on the basis of a hydraulic pressure that is detected by the sixth hydraulic pressure sensor. The control section is configured to set a current value of a current that is output to the sixth electromagnetic proportional valve on the basis of the current value information that is selected.
Public/Granted literature
- US20150345112A1 WORK VEHICLE AND WORK VEHICLE CONTROL METHOD Public/Granted day:2015-12-03
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