Invention Grant
- Patent Title: Work vehicle and method of controlling the same
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Application No.: US15757085Application Date: 2017-01-10
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Publication No.: US10697149B2Publication Date: 2020-06-30
- Inventor: Yuki Shimano , Takuya Sonoda , Kenji Ohiwa
- Applicant: KOMATSU LTD.
- Applicant Address: JP Minato-ku, Tokyo
- Assignee: KOMATSU LTD.
- Current Assignee: KOMATSU LTD.
- Current Assignee Address: JP Minato-ku, Tokyo
- Agency: Faegre Drinker Biddle & Reath LLP
- International Application: PCT/JP2017/000413 WO 20170110
- International Announcement: WO2018/131063 WO 20180719
- Main IPC: E02F9/22
- IPC: E02F9/22 ; E02F3/43 ; E02F9/20

Abstract:
A work vehicle includes: a hydraulic operation apparatus for operating an actuator; a main controller configured to generate a command current in accordance with an amount of operation of the operation apparatus; an electromagnetic proportional control valve configured to generate command pilot pressure in accordance with the command current; and a main valve configured to adjust a flow rate of hydraulic oil for operating the actuator based on the command pilot pressure. The electromagnetic proportional control valve is provided in a pilot oil passage that connects a pilot pump and a main valve, and configured to utilize hydraulic pressure supplied from the pilot pump to generate command pilot pressure. The operation apparatus is provided in an operation apparatus oil passage that is different from the pilot oil passage.
Public/Granted literature
- US20190078300A1 WORK VEHICLE AND METHOD OF CONTROLLING THE SAME Public/Granted day:2019-03-14
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