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SE2450058A1 - Construction equipment with a power limiting function - Google Patents

Construction equipment with a power limiting function

Info

Publication number
SE2450058A1
SE2450058A1 SE2450058A SE2450058A SE2450058A1 SE 2450058 A1 SE2450058 A1 SE 2450058A1 SE 2450058 A SE2450058 A SE 2450058A SE 2450058 A SE2450058 A SE 2450058A SE 2450058 A1 SE2450058 A1 SE 2450058A1
Authority
SE
Sweden
Prior art keywords
hydraulic
construction equipment
control unit
tool
flow
Prior art date
Application number
SE2450058A
Inventor
Fredrik Linnell
Tommy Olsson
Original Assignee
Husqvarna Ab
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 Husqvarna Ab filed Critical Husqvarna Ab
Priority to SE2450058A priority Critical patent/SE2450058A1/en
Priority to SE2450429A priority patent/SE2450429A1/en
Priority to PCT/SE2025/050035 priority patent/WO2025159678A1/en
Publication of SE2450058A1 publication Critical patent/SE2450058A1/en

Links

Classifications

    • 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
    • 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
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/965—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of metal-cutting or concrete-crushing implements
    • 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
    • E02F9/205—Remotely operated machines, e.g. unmanned vehicles
    • 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
    • E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
    • E02F9/2062—Control of propulsion units
    • E02F9/207—Control of propulsion units of the type electric propulsion units, e.g. electric motors or generators
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
    • F15B11/165—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for adjusting the pump output or bypass in response to demand
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08—Servomotor systems incorporating electrically operated control means
    • F15B21/082—Servomotor systems incorporating electrically operated control means with different modes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Paleontology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Construction equipment (100) comprising a control unit (110), a hydraulic system (120), and a hydraulic tool (200) with two opposing and cooperating jaw members (210) connected to the hydraulic system (120),where the control unit (110) is configured to obtain data related to a hydraulic pressure of the hydraulic tool (200),where the control unit (110) is configured to determine an acceptable level of hydraulic flow in the hydraulic system (120) based on the hydraulic pressure in the tool, such that a hydraulic power as function of pressure and flow in the hydraulic system (120) satisfies an acceptance criterion, andwhere the control unit (110) is configured to control the hydraulic flow to the hydraulic tool (200) so as to be at or below the acceptable level of hydraulic flow.
SE2450058A 2024-01-22 2024-01-22 Construction equipment with a power limiting function SE2450058A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE2450058A SE2450058A1 (en) 2024-01-22 2024-01-22 Construction equipment with a power limiting function
SE2450429A SE2450429A1 (en) 2024-01-22 2024-04-22 Construction equipment with a bucket shake function
PCT/SE2025/050035 WO2025159678A1 (en) 2024-01-22 2025-01-16 Construction equipment with a power limiting function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2450058A SE2450058A1 (en) 2024-01-22 2024-01-22 Construction equipment with a power limiting function

Publications (1)

Publication Number Publication Date
SE2450058A1 true SE2450058A1 (en) 2025-07-23

Family

ID=96738608

Family Applications (2)

Application Number Title Priority Date Filing Date
SE2450058A SE2450058A1 (en) 2024-01-22 2024-01-22 Construction equipment with a power limiting function
SE2450429A SE2450429A1 (en) 2024-01-22 2024-04-22 Construction equipment with a bucket shake function

Family Applications After (1)

Application Number Title Priority Date Filing Date
SE2450429A SE2450429A1 (en) 2024-01-22 2024-04-22 Construction equipment with a bucket shake function

Country Status (1)

Country Link
SE (2) SE2450058A1 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9303636B2 (en) * 2010-07-19 2016-04-05 Volvo Construction Equipment Ab System for controlling hydraulic pump in construction machine
WO2017069692A1 (en) * 2015-10-19 2017-04-27 Husqvarna Ab Adaptive control of hydraulic tool on remote controlled demolition robot
US20180305897A1 (en) * 2015-10-19 2018-10-25 Husqvarna Ab Energy buffer arrangement and method for remote controlled demolition robot
US20190264420A1 (en) * 2018-02-28 2019-08-29 Deere & Company Method of limiting flow in response to sensed pressure
WO2020040684A1 (en) * 2018-08-24 2020-02-27 Brokk Aktiebolag Demolition robot and method for supplying hydraulic power to a hydraulically powered tool at a demolition robot
EP2842213B1 (en) * 2012-04-23 2021-09-29 Brokk AB A portable power supply system for an electrically driven work machine and a work machine equipped with such a power supply system
EP3431783B1 (en) * 2017-07-20 2021-11-17 Danfoss Power Solutions II Technology A/S Load-dependent hydraulic fluid flow control system
WO2022186752A1 (en) * 2021-03-04 2022-09-09 Husqvarna Ab An energy efficient hydraulic system for construction machines
US20230193594A1 (en) * 2021-12-22 2023-06-22 Clark Equipment Company Systems and methods for control of electrically powered power machines

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3082844B2 (en) * 1997-12-18 2000-08-28 三五重機株式会社 Bucket type crusher
US8103418B2 (en) * 2007-08-06 2012-01-24 Extendquip Llc Extendable frame work vehicle having lift member movable in a true vertical fashion
SE536152C2 (en) * 2011-04-07 2013-06-04 Brokk Ab Control system for a remote controlled work machine equipped with an adjustable arm
CN104334805A (en) * 2012-05-22 2015-02-04 沃尔沃建造设备有限公司 Bucket movement control device for automatically shaking off foreign substances and method therefor
DE202014104835U1 (en) * 2014-10-09 2014-10-27 Rainer Weber Device for removing buildup in an excavator bucket
JP7146755B2 (en) * 2017-07-05 2022-10-04 住友重機械工業株式会社 Excavator
IT201900005184A1 (en) * 2019-04-05 2020-10-05 Cnh Ind Italia Spa Control method for carrying out a shaking movement of a bucket connected to an arm in an operating machine driven by an engine, corresponding control system and operating machine including this control system
CN212104247U (en) * 2020-04-22 2020-12-08 贵州詹阳动力重工有限公司 Automatic soil shaking control device for bucket of wheel type multipurpose engineering truck
CN111980082A (en) * 2020-09-01 2020-11-24 杭州常辉机械科技有限公司 Excavator with dust removal bucket
CA3251873A1 (en) * 2022-02-15 2023-08-24 Doosan Bobcat North America Inc Electrically powered power machine and method for operating an electrically powered power machine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9303636B2 (en) * 2010-07-19 2016-04-05 Volvo Construction Equipment Ab System for controlling hydraulic pump in construction machine
EP2842213B1 (en) * 2012-04-23 2021-09-29 Brokk AB A portable power supply system for an electrically driven work machine and a work machine equipped with such a power supply system
WO2017069692A1 (en) * 2015-10-19 2017-04-27 Husqvarna Ab Adaptive control of hydraulic tool on remote controlled demolition robot
US20180305897A1 (en) * 2015-10-19 2018-10-25 Husqvarna Ab Energy buffer arrangement and method for remote controlled demolition robot
EP3431783B1 (en) * 2017-07-20 2021-11-17 Danfoss Power Solutions II Technology A/S Load-dependent hydraulic fluid flow control system
US20190264420A1 (en) * 2018-02-28 2019-08-29 Deere & Company Method of limiting flow in response to sensed pressure
WO2020040684A1 (en) * 2018-08-24 2020-02-27 Brokk Aktiebolag Demolition robot and method for supplying hydraulic power to a hydraulically powered tool at a demolition robot
WO2022186752A1 (en) * 2021-03-04 2022-09-09 Husqvarna Ab An energy efficient hydraulic system for construction machines
US20230193594A1 (en) * 2021-12-22 2023-06-22 Clark Equipment Company Systems and methods for control of electrically powered power machines

Also Published As

Publication number Publication date
SE2450429A1 (en) 2025-07-23

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