JP7490478B2 - 作業機械、および作業機械の制御方法 - Google Patents

作業機械、および作業機械の制御方法 Download PDF

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Publication number
JP7490478B2
JP7490478B2 JP2020119125A JP2020119125A JP7490478B2 JP 7490478 B2 JP7490478 B2 JP 7490478B2 JP 2020119125 A JP2020119125 A JP 2020119125A JP 2020119125 A JP2020119125 A JP 2020119125A JP 7490478 B2 JP7490478 B2 JP 7490478B2
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JP
Japan
Prior art keywords
frame
variable displacement
displacement pump
steering
valve
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.)
Active
Application number
JP2020119125A
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English (en)
Japanese (ja)
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JP2022022892A5 (enExample
JP2022022892A (ja
Inventor
貴大 平間
圭一 林
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
Priority to JP2020119125A priority Critical patent/JP7490478B2/ja
Priority to US17/918,678 priority patent/US20230091679A1/en
Priority to EP21837128.4A priority patent/EP4122802A4/en
Priority to PCT/JP2021/023443 priority patent/WO2022009654A1/ja
Priority to CN202180029762.2A priority patent/CN115427640B/zh
Publication of JP2022022892A publication Critical patent/JP2022022892A/ja
Publication of JP2022022892A5 publication Critical patent/JP2022022892A5/ja
Application granted granted Critical
Publication of JP7490478B2 publication Critical patent/JP7490478B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/065—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by specially adapted means for varying pressurised fluid supply based on need, e.g. on-demand, variable assist
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D12/00—Steering specially adapted for vehicles operating in tandem or having pivotally connected frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/10—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of power unit
    • B62D5/12—Piston and cylinder
    • 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
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0841—Articulated frame, i.e. having at least one pivot point between two travelling gear units
    • 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
    • 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
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2232—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps
    • E02F9/2235—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps including an electronic controller
    • 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
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/225—Control of steering, e.g. for hydraulic motors driving the vehicle tracks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/061—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle provided with effort, steering lock, or end-of-stroke limiters

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Power Steering Mechanism (AREA)
  • Operation Control Of Excavators (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
JP2020119125A 2020-07-10 2020-07-10 作業機械、および作業機械の制御方法 Active JP7490478B2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2020119125A JP7490478B2 (ja) 2020-07-10 2020-07-10 作業機械、および作業機械の制御方法
US17/918,678 US20230091679A1 (en) 2020-07-10 2021-06-21 Work machine and method for controlling work machine
EP21837128.4A EP4122802A4 (en) 2020-07-10 2021-06-21 CONSTRUCTION MACHINERY AND METHOD FOR CONTROLLING CONSTRUCTION MACHINERY
PCT/JP2021/023443 WO2022009654A1 (ja) 2020-07-10 2021-06-21 作業機械、および作業機械の制御方法
CN202180029762.2A CN115427640B (zh) 2020-07-10 2021-06-21 作业机械以及作业机械的控制方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2020119125A JP7490478B2 (ja) 2020-07-10 2020-07-10 作業機械、および作業機械の制御方法

Publications (3)

Publication Number Publication Date
JP2022022892A JP2022022892A (ja) 2022-02-07
JP2022022892A5 JP2022022892A5 (enExample) 2022-10-20
JP7490478B2 true JP7490478B2 (ja) 2024-05-27

Family

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Family Applications (1)

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JP2020119125A Active JP7490478B2 (ja) 2020-07-10 2020-07-10 作業機械、および作業機械の制御方法

Country Status (5)

Country Link
US (1) US20230091679A1 (enExample)
EP (1) EP4122802A4 (enExample)
JP (1) JP7490478B2 (enExample)
CN (1) CN115427640B (enExample)
WO (1) WO2022009654A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2024048714A (ja) * 2022-09-28 2024-04-09 株式会社小松製作所 作業機械、および作業機械の制御方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006348742A (ja) 2006-08-04 2006-12-28 Komatsu Ltd 作業車両の作業機用油圧ポンプの制御装置
JP2008044428A (ja) 2006-08-11 2008-02-28 Komatsu Ltd 車両のステアリング制御装置
JP2008074393A (ja) 2006-09-01 2008-04-03 Deere & Co 制御された操向緩衝作用を有する連結式作業車両操向システムおよびそれに関連する方法
JP2017087779A (ja) 2015-11-03 2017-05-25 日立建機株式会社 ホイール式作業車両

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DE2500137C3 (de) * 1975-01-03 1980-06-19 O & K Orenstein & Koppel Ag, 1000 Berlin Hydrostatische Hilfskraftlenkung für SchaufeUader
US5117935A (en) * 1990-12-21 1992-06-02 Caterpillar Inc. Load sensing hydrostatic steering system
JPH0617440A (ja) * 1992-07-02 1994-01-25 Kubota Corp バックホー装置の油圧操作構造
US6039133A (en) * 1997-11-17 2000-03-21 Zulu; Joshua Steering control system for an articulating work machine having a steering fluid cylinder and a fluid-powered differential
DE19963344C1 (de) * 1999-12-27 2001-09-20 Sauer Danfoss Nordborg As Nord Verfahren zum Lenken eines Fahrzeugs
JP2003202001A (ja) * 2002-01-08 2003-07-18 Komatsu Ltd 可変容量型流体装置と同流体装置を備えた作業機
DE10256307A1 (de) * 2002-12-03 2004-06-24 O&K Orenstein & Koppel Ag Hydraulische Lenkung für Fahrzeuge
JP4373238B2 (ja) * 2003-08-19 2009-11-25 株式会社日立製作所 パワーステアリング装置
US6926113B2 (en) * 2003-10-22 2005-08-09 Cnh America Llc Cushioned steering for articulated vehicle
WO2008075568A1 (ja) * 2006-12-21 2008-06-26 Hitachi Construction Machinery Co., Ltd. 作業車両のステアリングシステム
WO2008081843A1 (ja) * 2006-12-26 2008-07-10 Hitachi Construction Machinery Co., Ltd. 作業車両のステアリングシステム
JP4941928B2 (ja) * 2006-12-26 2012-05-30 日立建機株式会社 作業車両のステアリングシステム
JP5388461B2 (ja) * 2008-03-21 2014-01-15 株式会社小松製作所 ステアリング操作装置
BRPI0920016A2 (pt) * 2008-12-17 2015-12-15 Komatsu Mfg Co Ltd dispositivo de controle para um veículo de transmissão hidrostática
JP5877616B2 (ja) * 2012-03-02 2016-03-08 ボッシュ・レックスロス株式会社 可変容量ポンプの制御方法
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JP6403386B2 (ja) * 2014-01-15 2018-10-10 株式会社小松製作所 作業車両及び作業車両の制御方法
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DE102016002443A1 (de) * 2016-02-29 2017-08-31 Bomag Gmbh Lenkeinrichtung, Baumaschine mit einer Lenkeinrichtung und Verfahren zum Lenken einer lenkbaren Maschine
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US9925983B2 (en) * 2016-07-18 2018-03-27 Caterpillar Inc. System and method to eliminate or reduce frame contact during operation of articulated machine
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US10850767B2 (en) * 2016-08-26 2020-12-01 Komatsu Ltd. Work vehicle and control method for work vehicle
JP6996900B2 (ja) * 2017-08-11 2022-01-17 株式会社小松製作所 作業車両
JP6858723B2 (ja) * 2018-03-28 2021-04-14 日立建機株式会社 ホイールローダ
JP7223526B2 (ja) * 2018-08-13 2023-02-16 株式会社小松製作所 作業車両
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CN111155588A (zh) * 2020-01-10 2020-05-15 重庆智邦工程机械(集团)有限公司 一种履带式挖掘机转向自动变速控制系统及控制方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006348742A (ja) 2006-08-04 2006-12-28 Komatsu Ltd 作業車両の作業機用油圧ポンプの制御装置
JP2008044428A (ja) 2006-08-11 2008-02-28 Komatsu Ltd 車両のステアリング制御装置
JP2008074393A (ja) 2006-09-01 2008-04-03 Deere & Co 制御された操向緩衝作用を有する連結式作業車両操向システムおよびそれに関連する方法
JP2017087779A (ja) 2015-11-03 2017-05-25 日立建機株式会社 ホイール式作業車両

Also Published As

Publication number Publication date
EP4122802A4 (en) 2024-06-12
WO2022009654A1 (ja) 2022-01-13
US20230091679A1 (en) 2023-03-23
CN115427640B (zh) 2024-07-09
EP4122802A1 (en) 2023-01-25
CN115427640A (zh) 2022-12-02
JP2022022892A (ja) 2022-02-07

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