Work vehicle
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United States of America Patent
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Nov 28, 2023
Grant Date -
N/A
app pub date -
Feb 21, 2020
filing date -
Feb 27, 2019
priority date (Note) -
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Importance
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Non-US Coverage
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Abstract
A work vehicle includes: an operation tool that is operated by an operator; and a controller that determines a target flow rate for hydraulic oil fed to a hydraulic device on a basis of the amount of operation of the operation tool. The controller calculates a bleed-off target flow rate on a basis of the flow rate of hydraulic oil fed from a hydraulic oil pump and the target flow rate for hydraulic oil fed to the hydraulic device, calculates a bleed-off throttle differential pressure on a basis of a pressure of hydraulic oil fed from the hydraulic oil pump and a pressure of hydraulic oil in a hydraulic oil tank, calculates a bleed-off target opening area on a basis of the bleed-off target flow rate and the bleed-off throttle differential pressure, and controls a hydraulic oil control valve such that the bleed-off target opening area is achieved.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- TADANO LTD.; NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Kawabuchi, Naoto | Kagawa, JP | 16 | 10 |
Noguchi, Shinji | Kagawa, JP | 20 | 246 |
Sanada, Kazushi | Kanagawa, JP | 2 | 10 |
Tanizumi, Kazuya | Kagawa, JP | 6 | 122 |
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