US20190186100A1 - Work vehicle and method for controlling work vehicle - Google Patents

Work vehicle and method for controlling work vehicle Download PDF

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Publication number
US20190186100A1
US20190186100A1 US16/330,875 US201616330875A US2019186100A1 US 20190186100 A1 US20190186100 A1 US 20190186100A1 US 201616330875 A US201616330875 A US 201616330875A US 2019186100 A1 US2019186100 A1 US 2019186100A1
Authority
US
United States
Prior art keywords
bucket
manipulation
cutting edge
work implement
boom
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US16/330,875
Other languages
English (en)
Inventor
Nobuyoshi YAMANAKA
Shunsuke Mori
Toshiaki Kumagai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Komatsu Ltd filed Critical Komatsu Ltd
Assigned to KOMATSU LTD. reassignment KOMATSU LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KUMAGAI, TOSHIAKI, MORI, SHUNSUKE, YAMANAKA, NOBUYOSHI
Publication of US20190186100A1 publication Critical patent/US20190186100A1/en
Abandoned legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
    • E02F3/437—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like providing automatic sequences of movements, e.g. linear excavation, keeping dipper angle constant
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/2025—Particular purposes of control systems not otherwise provided for
    • E02F9/2033—Limiting the movement of frames or implements, e.g. to avoid collision between implements and the cabin
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/26—Indicating devices
    • E02F9/261—Surveying the work-site to be treated
    • E02F9/262—Surveying the work-site to be treated with follow-up actions to control the work tool, e.g. controller
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
    • E02F3/439—Automatic repositioning of the implement, e.g. automatic dumping, auto-return

Definitions

  • the present invention relates to a work vehicle.
  • bucket 8 When bucket 8 has an excavation angle smaller than the limit angle, bucket 8 has its exterior or back surface pressed against soil, which rapidly increases a value of resistance of soil against bucket 8 .
  • resistance of soil When bucket 8 travels in a direction on the side of the back surface of bucket 8 with respect to the direction of cutting edge 8 a of bucket 8 , resistance of soil has an increased value.
  • direction Va ⁇ is on the side of the open side of bucket 8 with respect to the direction of cutting edge 8 a of bucket 8 , and accordingly, accompanied by decreased resistance of soil. Accordingly, movement of bucket 8 by dipper stick 7 in direction Va ⁇ is permitted.
  • work implement controller 26 accepts an input via a manipulation lever (step S 6 ).
  • work implement controller 26 drives directional control valve 64 to supply hydraulic oil to boom cylinder 10 for driving boom 6 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Operation Control Of Excavators (AREA)
US16/330,875 2016-11-28 2016-11-28 Work vehicle and method for controlling work vehicle Abandoned US20190186100A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/085125 WO2018096668A1 (ja) 2016-11-28 2016-11-28 作業車両および作業車両の制御方法

Publications (1)

Publication Number Publication Date
US20190186100A1 true US20190186100A1 (en) 2019-06-20

Family

ID=62194869

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/330,875 Abandoned US20190186100A1 (en) 2016-11-28 2016-11-28 Work vehicle and method for controlling work vehicle

Country Status (6)

Country Link
US (1) US20190186100A1 (zh)
JP (1) JPWO2018096668A1 (zh)
KR (1) KR20190030759A (zh)
CN (1) CN109642406A (zh)
DE (1) DE112016007279T5 (zh)
WO (1) WO2018096668A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11401698B2 (en) * 2019-01-25 2022-08-02 Beijing Baidu Netcom Science And Technology Co., Ltd. Method and apparatus for controlling excavator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6964109B2 (ja) * 2019-03-26 2021-11-10 日立建機株式会社 作業機械

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60219332A (ja) * 1984-04-13 1985-11-02 Komatsu Ltd バケツトにおける掘削抵抗の低減方法
JPS6187033A (ja) * 1984-10-03 1986-05-02 Komatsu Ltd パワ−シヨベルの制御装置
JPS61225429A (ja) 1985-03-29 1986-10-07 Komatsu Ltd パワ−シヨベルの作業機制御装置
JPH0689550B2 (ja) 1986-02-14 1994-11-09 株式会社小松製作所 パワ−シヨベルにおける作業機制御方法および装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11401698B2 (en) * 2019-01-25 2022-08-02 Beijing Baidu Netcom Science And Technology Co., Ltd. Method and apparatus for controlling excavator

Also Published As

Publication number Publication date
CN109642406A (zh) 2019-04-16
WO2018096668A1 (ja) 2018-05-31
KR20190030759A (ko) 2019-03-22
DE112016007279T5 (de) 2019-06-13
JPWO2018096668A1 (ja) 2019-10-17

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Legal Events

Date Code Title Description
AS Assignment

Owner name: KOMATSU LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YAMANAKA, NOBUYOSHI;MORI, SHUNSUKE;KUMAGAI, TOSHIAKI;REEL/FRAME:048516/0615

Effective date: 20190225

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STCB Information on status: application discontinuation

Free format text: EXPRESSLY ABANDONED -- DURING EXAMINATION