EP2013423A2 - Procede pour reduire la charge d'un ou de plusieurs moteurs dans une excavatrice hydraulique de grand volume - Google Patents

Procede pour reduire la charge d'un ou de plusieurs moteurs dans une excavatrice hydraulique de grand volume

Info

Publication number
EP2013423A2
EP2013423A2 EP07724512A EP07724512A EP2013423A2 EP 2013423 A2 EP2013423 A2 EP 2013423A2 EP 07724512 A EP07724512 A EP 07724512A EP 07724512 A EP07724512 A EP 07724512A EP 2013423 A2 EP2013423 A2 EP 2013423A2
Authority
EP
European Patent Office
Prior art keywords
engine
load
flow rate
reducing
consumer
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.)
Withdrawn
Application number
EP07724512A
Other languages
German (de)
English (en)
Inventor
Wilfried Busse
Reinhard Emminger
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.)
Terex Germany GmbH and Co KG
Original Assignee
Terex Germany GmbH and Co KG
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 Terex Germany GmbH and Co KG filed Critical Terex Germany GmbH and Co KG
Publication of EP2013423A2 publication Critical patent/EP2013423A2/fr
Withdrawn legal-status Critical Current

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
    • E02F9/2246—Control of prime movers, e.g. depending on the hydraulic load of work tools
    • 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
    • E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
    • E02F9/2228—Control of flow rate; Load sensing arrangements using pressure-compensating valves 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
    • E02F9/2221—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/05—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2203/00—Motor parameters
    • F04B2203/06—Motor parameters of internal combustion engines
    • F04B2203/0604—Power
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2203/00—Motor parameters
    • F04B2203/06—Motor parameters of internal combustion engines
    • F04B2203/0605—Rotational speed

Definitions

  • the invention relates to a method for reducing the load of at least one arranged in a large hydraulic excavator engine, in particular an internal combustion engine.
  • DE 699 20 452 T2 describes a mobile working machine with a hydraulic circuit, the hydraulic circuit comprising one of the cylinders arranged in a lifting device which is suitable for handling a variable load. Further, an accumulator for recovering or returning decreasing load energy is provided.
  • the invention has for its object to provide a method for reducing the load of at least one arranged in a large hydraulic excavator engine, in particular an internal combustion engine, in overload situations, through which the described negative effects can be largely compensated.
  • This object is achieved by a method for reducing the load of at least one arranged in a large hydraulic excavator engine, in particular an internal combustion engine by at least one hydraulic auxiliary load, in particular a pump is lowered so far in its flow rate in a rotational overload situation of the respective motor until the respective engine is returned to its proper speed range.
  • At least one main hydraulic consumer such as a main working pump, be its flow rate is reduced by a predetermined amount of flow. This Förde / volume reduction is carried out until the respective engine is returned to its operating speed range.
  • Speed reduction can be initially reduced at least one hydraulic secondary consumer (secondary consumer) in its capacity.
  • controllable axial piston pumps for example for the fan drives of oil and water cooling, which are often assigned constant pumps.
  • the main work pumps are also advantageously formed by controllable high-pressure axial piston pumps, the flow rate control is analogous to the Mauworkingem by proportional or servo valves. They are reduced in their flow rate only when the fine control has taken place on the first-time reduction of the secondary consumers.
  • Figures 1 and 2 are graphical representations of different load spectra of an engine mounted in a large hydraulic excavator.
  • the engine can be returned to the area of its installed power.
  • auxiliary hydraulic consumer eg a pump
  • Motor power 2 x 900 kW installed working pumps: 4 x 920 l / min, corresponding to 3,680 l / min.
  • the secondary consumers are reduced by 500 l / min, in their flow rate.
  • the diagram shows that only a reduction of up to 1,900 kW is possible here, which still exceeds the installed engine power of 1,800 kW.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

L'invention concerne un procédé pour réduire la charge d'au moins un moteur disposé dans une excavatrice hydraulique de grand volume, notamment d'un moteur à combustion interne ; dans une situation de surcharge en termes de régime du moteur respectif, la quantité refoulée par un consommateur auxiliaire hydraulique, notamment une pompe de travail, est réduite dans une mesure telle que le moteur revienne dans sa plage de régime correcte.
EP07724512A 2006-05-03 2007-04-24 Procede pour reduire la charge d'un ou de plusieurs moteurs dans une excavatrice hydraulique de grand volume Withdrawn EP2013423A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006020441.7A DE102006020441B4 (de) 2006-05-03 2006-05-03 Verfahren zur Lastminderung eines oder mehrerer Motore in einem Groß-Hydraulikbagger
PCT/EP2007/003582 WO2007124892A2 (fr) 2006-05-03 2007-04-24 Procede pour reduire la charge d'un ou de plusieurs moteurs dans une excavatrice hydraulique de grand volume

Publications (1)

Publication Number Publication Date
EP2013423A2 true EP2013423A2 (fr) 2009-01-14

Family

ID=38222681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07724512A Withdrawn EP2013423A2 (fr) 2006-05-03 2007-04-24 Procede pour reduire la charge d'un ou de plusieurs moteurs dans une excavatrice hydraulique de grand volume

Country Status (6)

Country Link
EP (1) EP2013423A2 (fr)
AU (1) AU2007245841B8 (fr)
CA (1) CA2651029C (fr)
DE (1) DE102006020441B4 (fr)
WO (1) WO2007124892A2 (fr)
ZA (1) ZA200808927B (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2251904A1 (de) * 1972-10-23 1974-04-25 Weserhuette Ag Eisenwerk Grenzlastregelung fuer hydraulikantriebe
DE2331617A1 (de) * 1973-06-22 1975-01-16 Bosch Gmbh Robert Regeleinrichtung fuer hydropumpen
US4606313A (en) * 1980-10-09 1986-08-19 Hitachi Construction Machinery Co., Ltd. Method of and system for controlling hydraulic power system
DE3611553C1 (de) * 1986-04-07 1987-07-23 Orenstein & Koppel Ag Anordnung zum Betrieb eines dieselhydraulischen Antriebes
DE4102621A1 (de) * 1991-01-30 1992-08-06 Orenstein & Koppel Ag Hydrostatischer antrieb fuer arbeitsmaschinen
JP2002519597A (ja) * 1998-06-27 2002-07-02 ブラーン，ラーズ 移動型作業機
DE10307190A1 (de) * 2003-02-20 2004-09-16 O & K Orenstein & Koppel Gmbh Verfahren zur Steuerung eines Hydrauliksystems einer mobilen Arbeitsmaschine
DE102005017127B4 (de) * 2005-04-14 2021-09-16 Linde Material Handling Gmbh Verbrennungsmotorisch betriebenes Flurförderzeug mit Überlastschutz

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007124892A3 *

Also Published As

Publication number Publication date
AU2007245841A1 (en) 2007-11-08
DE102006020441B4 (de) 2017-01-26
ZA200808927B (en) 2009-07-29
DE102006020441A1 (de) 2007-11-15
AU2007245841B8 (en) 2013-12-12
CA2651029A1 (fr) 2007-11-08
WO2007124892A3 (fr) 2008-03-20
WO2007124892A2 (fr) 2007-11-08
AU2007245841B2 (en) 2013-11-28
CA2651029C (fr) 2014-01-28

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