US20040003782A1 - Method and device for regulation of a cooling fan drive on an internal combustion engine in a construction or working machine - Google Patents

Method and device for regulation of a cooling fan drive on an internal combustion engine in a construction or working machine Download PDF

Info

Publication number
US20040003782A1
US20040003782A1 US10/363,983 US36398303A US2004003782A1 US 20040003782 A1 US20040003782 A1 US 20040003782A1 US 36398303 A US36398303 A US 36398303A US 2004003782 A1 US2004003782 A1 US 2004003782A1
Authority
US
United States
Prior art keywords
construction
fan drive
fan
internal combustion
combustion engine
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
US10/363,983
Inventor
Herbert Ziplies
Uwe Esch
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
Priority to DE10044607.8 priority Critical
Priority to DE10044607A priority patent/DE10044607A1/en
Application filed by Terex Germany GmbH and Co KG filed Critical Terex Germany GmbH and Co KG
Priority to PCT/EP2001/010193 priority patent/WO2002020955A1/en
Assigned to TEREX GERMANY GMBH & CO. KG reassignment TEREX GERMANY GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ESCH, UWE, ZIPLIES, HERBERT
Publication of US20040003782A1 publication Critical patent/US20040003782A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20Drives; Control devices
    • E02F9/22Hydraulic or pneumatic drives
    • E02F9/226Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20Drives; Control devices
    • E02F9/2058Electric or electro-mechanical or mechanical control devices of vehicle sub-units
    • E02F9/2095Control of electric, electro-mechanical or mechanical equipment not otherwise provided for, e.g. ventilators, electro-driven fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00Controlling of coolant flow
    • F01P7/02Controlling of coolant flow the coolant being cooling-air
    • F01P7/04Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
    • F01P7/044Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using hydraulic drives
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/161Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
    • F15B11/162Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for giving priority to particular servomotors or users
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2023/00Signal processing; Details thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2023/00Signal processing; Details thereof
    • F01P2023/08Microprocessor; Microcomputer
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2025/00Measuring
    • F01P2025/08Temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2025/00Measuring
    • F01P2025/08Temperature
    • F01P2025/40Oil temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00Cooling circuits using auxiliaries
    • F01P2060/04Lubricant cooler
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/20Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205Systems with pumps
    • F15B2211/20507Type of prime mover
    • F15B2211/20523Internal combustion engine
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/20Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205Systems with pumps
    • F15B2211/2053Type of pump
    • F15B2211/20546Type of pump variable capacity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/20Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205Systems with pumps
    • F15B2211/20576Systems with pumps with multiple pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/30Directional control
    • F15B2211/32Directional control characterised by the type of actuation
    • F15B2211/327Directional control characterised by the type of actuation electrically or electronically
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/60Circuit components or control therefor
    • F15B2211/62Cooling or heating means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/60Circuit components or control therefor
    • F15B2211/63Electronic controllers
    • F15B2211/6303Electronic controllers using input signals
    • F15B2211/6343Electronic controllers using input signals representing a temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/60Circuit components or control therefor
    • F15B2211/66Temperature control methods
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/70Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7058Rotary output members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/70Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76Control of force or torque of the output member
    • F15B2211/761Control of a negative load, i.e. of a load generating hydraulic energy
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/70Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/78Control of multiple output members
    • F15B2211/781Control of multiple output members one or more output members having priority

Abstract

The invention relates to a method for regulation of a cooling fan drive on an internal combustion engine, in particular equipped with several independent cooling circuits, in a construction or working machine, whereby the power drain of the cooling fan drive is set to approximately zero during certain working stages of the construction and/or working and said power drain may be added to the capacity for the working stage.

Description

  • The invention relates to a method for regulating a cooling fan drive on an internal combustion engine, in particular provided with a number or separate cooling circuits and used in construction or working machines. [0001]
  • German reference DE-A 195 35 674 proposes a method for regulating the cooling system of an excavator drive, in particular a high-performance diesel-engine drive. For this method, a thermostat provided near the diesel engine opens up the flow path from the diesel engine to a water cooled-radiator that operates jointly with the fan at a predetermined water temperature. A temperature gauge arranged in the area of the flow path controls the fan in such a way that within a predetermined temperature range above the thermostat-controlled water temperature, the speed of the fan is controlled in the range between 0 min[0002] −1 and a maximum speed.
  • German reference DE-A 198 25 759 discloses a hydraulic drive component with a variable displacement pump that is connected flow-wise in a closed circuit to an engine and is designed to drive an auxiliary device such as a fan. An auxiliary pump can be connected operationally to the pump, the engine and a container for replenishing the flow medium lost in the closed circuit. An auxiliary circuit that is connected to the pump has a circulation opening that is connected with respect to the flow to the closed circuit in downstream direction of the engine, so as to reduce the required container volume. [0003]
  • Construction or working machines, particularly hydraulic excavators, are designed for specific peak performances, for example computed on the basis of identical working movements that are in part repeated constantly, such as the lifting of the boom and the pivoting of the upper carriage relative to the undercarriage. [0004]
  • The internal combustion engines of these construction or working machines, in particular of hydraulic excavators, are normally cooled with water, wherein a fan controlled by a separate hydraulic drive is provided. The fan can be turned on/turned off and, in particular, can be actuated by the internal combustion engine in dependence on the increasing temperatures in the cooling circuit of the internal combustion engine. [0005]
  • During normal operations of the construction or working machine, particularly of the hydraulic excavator, the fan as a rule is activated once a predetermined temperature value is exceeded in the cooling circuit of the internal combustion engine. The activated fan requires a specific driving power for controlling the temperature in the cooling circuit. [0006]
  • As a result of the power drain caused by the fan activation, the full driving power of the internal combustion engine is not available, for example, for raising a boom and the internal combustion engine capacity assigned to the operating sequence may no longer be sufficient for certain limit ranges. [0007]
  • Thus, it is the object of the invention to provide a method and a device for regulating a fan drive in such a way that the capacity can be raised for the working movements of the construction or working machine, without this leading to a reduction in power for the internal combustion engine. [0008]
  • This object is solved with a method for regulating a fan drive on an internal combustion engine, in particular provided with several independent cooling circuits, in construction and/or working machines. For this, the power consumption of the fan drive is set to approximately zero for predetermined operating sequences of the construction and/or working machine and the fan power consumption is added to that of the operating sequence. [0009]
  • Advantageous modifications of the subject matter of the invention follow from the associated dependent method claims. [0010]
  • This object is furthermore solved with a device for regulating a fan drive on an internal combustion engine, in particular provided with several independents cooling circuits and used in construction and/or working machines. The device comprises at least one PI regulator for each cooling circuit, at least one downstream-connected comparator, as well as at least one pulse-width modulator that is operatively connected to a control unit. [0011]
  • The regulator according to a different idea behind the invention is a μ controller-PI regulator. [0012]
  • The subject matter of the invention makes it possible to adjust at least two different set temperature values for several independently operating cooling circuits in an internal combustion engine with the aid of a fan drive and via a joint control unit. As a result, the power consumption of the fan drive is set to zero for specific working movements (fan runs along with no load) and the fan capacity can then be added to that of the working movement. [0013]
  • A set value/actual value comparison is performed with a μ controller-PI regulator for each cooling circuit and the required adjustment value is determined for each cooling circuit. The downstream-connected comparator then determines the maximum adjustment value from the individual adjustment values and transmits this maximum value to a PWM stage (pulse width modulation stage) that is connected to the control unit. For a specific working movement, for example when raising the boom of a hydraulic excavator, the set temperature values of the cooling circuits are essentially raised simultaneously. As a result, the power consumption of the fan drive is set to approximately zero (fan runs along with no load) and the lifting capacity increases by the amount of the fan drive capacity. [0014]
  • Depending on the dimensions of the construction or working machine, in particular a large hydraulic excavator, the lifting capacity for raising the boom can thus be increased without overheating of the drive unit or units. This takes into account that the fan driving power is not assigned continuously, but is required only for predetermined, defined working movements of the construction or working machine.[0015]
  • The single FIGURE is described in the following and represents a schematic diagram.[0016]
  • Shown is an internal combustion engine [0017] 1, provided for this example with two independent cooling circuits 2, 3, which in turn are connected via a controller 9 with control unit 10 on a controllable fan drive 4 to a fan wheel 5. Also shown is an equipment part 6, for example the boom of a hydraulic excavator that is not shown in further detail herein. This equipment part is positioned on an upper carriage 7 that is only indicated herein and can be lowered or raised with the aid of hydraulic cylinders 8. Also indicated are the hydraulic circuit 11, which is responsible for the lifting and lowering of the equipment component 6, the hydraulic circuit 12 that is responsible for the fan drive 4, as well as the hydraulic circuit 20 that is necessary for supplying the control unit 10. A μ controller-PI regulator 13, 14 is provided for each cooling circuit 2, 3, which performs a set value/actual value comparison and computes the associated adjustment values for each cooling circuit 2, 3. The set values are provided to the μ controllers-PI regulators 13, 14 via a reversing switch 15. The values determined by the μ controllers-PI regulators 13, 14 are transmitted to a downstream-connected comparator 16. This comparator determines the maximum adjustment value from the individual adjustment values and transmits this maximum adjustment value to a PWM (pulse width modulation) stage 17 that is connected via the line 18 to the control unit 10. Among other things, a portion of the driving capacity of the internal combustion engine 1 is thus assigned to the operating sequence of the equipment component 6 while another portion of the driving capacity is required for the fan wheel 5, so as to protect the internal combustion engine 1 against overheating. For specific operating sequences, for example when raising the equipment component 6 with the aid of hydraulic cylinders 8, the combustion engine 1 may not have enough driving power for raising the equipment component 6.
  • According to the invention, a switch [0018] 19 and the reversing switch 15 are used to raise the set temperature values for the cooling circuits 2, 3 for this type of working movement to higher set temperature values. As a result, the power consumption of the fan drive 4 is set to approximately zero via the line 18 and the control unit 10. The fan wheel 5 then stops running or runs along without load. The hydraulic driving power of the fan drive 4, which is no longer needed for operating the fan wheel 5, is thus added to the lifting capacity of the equipment component 6 without resulting in overheating of the internal combustion engine 1. As soon as the specific movement sequence is completed, the hydraulic fan drive 4 is again switched to the fan wheel 5, wherein the increased set temperature values for each cooling circuit 2, 3 are again assigned via the switch 19 and the reversing switch 15 to a lower set temperature value. This power interplay can be repeated in an optional sequence, but must be seen in the final analysis as depending on the maximum capacity to be assigned to the respective movement sequence.

Claims (8)

1. (Original) A method for regulating a fan drive (4) on an internal combustion engine (1), in particular provided with several independent cooling circuits (2, 3) and used in construction and/or working machines in that the power consumption of the fan drive (4) is set approximately to zero for predetermined operating sequences of the construction and/or working machine and that the fan power consumption is added to that of the operating sequence.
2. (Original) The method according to claim 1, characterized in that at least two different set temperature values are adjusted for the cooling circuit (2, 3), wherein for predetermined operating sequences of the construction or working machine the one set temperature value is adjusted to a higher set temperature value with the aid of a switch (19) and a reversing switch (15) and that the operating capacity of the fan drive (4) is set to approximately zero.
3. (Currently Amended) The method according to claim 1 or 2, characterized in that if several cooling circuits (2, 3) exist, at least two different set temperature values are adjusted for each cooling circuit (2, 3) via a joint control unit (10).
4. (Currently Amended) The method according to one of the claims claim 1 to 3, characterized in that a set value/actual value temperature comparison is carried out with a μ controller-PI regulator (13, 14) for each cooling circuit (2, 3) and that the permissible adjustment value for each cooling circuit (2, 3) is determined.
5. (Currently Amended) The method according to one of the claims claim 1 to 4, characterized in that a comparator (16) that operates jointly with the PI regulator(s) (13, 14) determines a maximum adjustment value from the individual adjustment value(s) and transmits this maximum adjustment value to a pulse width modulation stage (17) that is operatively connected to the control unit (10).
6. (Currently Amended) The method according to one of the claims claim 1 to 5, characterized in that for a predetermined working movement of the construction and/or working machine, in particular for lifting the boom (6) of a hydraulic excavator, the set temperature values of all cooling circuits (2, 3) are raised essentially at the same time, thus causing the power consumption of the fan drive (4), particularly during the no-load operation of the fan wheel (5), to be set approximately to zero and the driving power of the fan drive (4) to be assigned to the movement sequence of the construction and/or working machine, in particular for increasing the lifting capacity of the boom (6).
7. (Original) A device for regulating a fan drive (4) on an internal combustion engine (1), in particular provided with several independent cooling circuits (2, 3) and used in construction and/or working machines, said device comprising at least one reversing switch (15), at least one PI regulator (13, 14) for each cooling circuit (2, 3), at least one downstream-connected comparator (16), as well as at least one pulse width modulator (17) that is operatively connected to a control unit (10).
8. (Original) The device according to claim 7, characterized in that the regulator (13, 14) is a μ controller-PI regulator.
US10/363,983 2000-09-08 2001-09-05 Method and device for regulation of a cooling fan drive on an internal combustion engine in a construction or working machine Abandoned US20040003782A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE10044607.8 2000-09-08
DE10044607A DE10044607A1 (en) 2000-09-08 2000-09-08 Method and device for controlling a fan drive of an internal combustion engine in construction and / or work machines
PCT/EP2001/010193 WO2002020955A1 (en) 2000-09-08 2001-09-05 Method and device for regulation of a cooling fan drive on an internal combustion engine in a construction or working machine

Publications (1)

Publication Number Publication Date
US20040003782A1 true US20040003782A1 (en) 2004-01-08

Family

ID=7655616

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/363,983 Abandoned US20040003782A1 (en) 2000-09-08 2001-09-05 Method and device for regulation of a cooling fan drive on an internal combustion engine in a construction or working machine

Country Status (7)

Country Link
US (1) US20040003782A1 (en)
EP (1) EP1315888A1 (en)
JP (1) JP2004508480A (en)
AU (1) AU1387702A (en)
CA (1) CA2426452A1 (en)
DE (1) DE10044607A1 (en)
WO (1) WO2002020955A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1607600A1 (en) * 2004-06-11 2005-12-21 Siemens Aktiengesellschaft Device for operating a fan
US20060213458A1 (en) * 2005-03-22 2006-09-28 Atlas Copco Rock Drills Ab Drill rig and a method for controlling a fan therein
US9574660B2 (en) 2014-02-21 2017-02-21 Federal Signal Corporation Hydraulic fan drive system
WO2019101313A1 (en) * 2017-11-23 2019-05-31 Volvo Construction Equipment Ab A drive system for a working machine and a method for controlling the drive system
US10330126B2 (en) * 2016-12-16 2019-06-25 Caterpillar Inc. Fan control system with electro-hydraulic valve providing three fan motor operational positions

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005344766A (en) * 2004-06-01 2005-12-15 Komatsu Ltd Oil-hydraulic circuit of work vehicle
US9009993B2 (en) * 2012-09-21 2015-04-21 Harnischfeger Technologies, Inc. Internal venting system for industrial machines
DE102015226268A1 (en) * 2015-12-21 2017-06-22 Robert Bosch Gmbh Method and control device for operating a coupled to a shaft of a fan flywheel

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603196A (en) * 1950-03-04 1952-07-15 Fluor Corp System for cooling engine liquids
US4479532A (en) * 1980-12-25 1984-10-30 Kabushiki Kaisha Komatsu Seisakusho A system for controlling a hydraulic cooling fan for an engine as a _function of ambient and coolant temperatures
US6055946A (en) * 1999-08-02 2000-05-02 Navistar International Transportation Corp Crankshaft-mounted cooling fan with power takeoff capability
US6076488A (en) * 1997-03-17 2000-06-20 Shin Caterpillar Mitsubishi Ltd. Cooling device for a construction machine
US6195989B1 (en) * 1999-05-04 2001-03-06 Caterpillar Inc. Power control system for a machine
US6273034B1 (en) * 2000-05-17 2001-08-14 Detroit Diesel Corporation Closed loop fan control using fan motor pressure feedback
US6604360B1 (en) * 2002-04-18 2003-08-12 Deere & Company Exhaust driven engine cooling system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19535674A1 (en) 1995-09-26 1997-03-27 Orenstein & Koppel Ag Process for controlling the cooling device of a diesel engine excavator drive and cooling device for diesel engine excavator drives
EP0946384A1 (en) * 1996-12-24 1999-10-06 Itt Automotive Electrical Systems, Inc. Hydraulically powered fan and power steering in a vehicle
US5875630A (en) 1997-06-10 1999-03-02 Sauer Inc. Hydraulic drive assembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603196A (en) * 1950-03-04 1952-07-15 Fluor Corp System for cooling engine liquids
US4479532A (en) * 1980-12-25 1984-10-30 Kabushiki Kaisha Komatsu Seisakusho A system for controlling a hydraulic cooling fan for an engine as a _function of ambient and coolant temperatures
US6076488A (en) * 1997-03-17 2000-06-20 Shin Caterpillar Mitsubishi Ltd. Cooling device for a construction machine
US6195989B1 (en) * 1999-05-04 2001-03-06 Caterpillar Inc. Power control system for a machine
US6055946A (en) * 1999-08-02 2000-05-02 Navistar International Transportation Corp Crankshaft-mounted cooling fan with power takeoff capability
US6273034B1 (en) * 2000-05-17 2001-08-14 Detroit Diesel Corporation Closed loop fan control using fan motor pressure feedback
US6604360B1 (en) * 2002-04-18 2003-08-12 Deere & Company Exhaust driven engine cooling system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1607600A1 (en) * 2004-06-11 2005-12-21 Siemens Aktiengesellschaft Device for operating a fan
US20060213458A1 (en) * 2005-03-22 2006-09-28 Atlas Copco Rock Drills Ab Drill rig and a method for controlling a fan therein
US7395788B2 (en) * 2005-03-22 2008-07-08 Atlas Copco Rock Drills Ab Drill rig and a method for controlling a fan therein
US9574660B2 (en) 2014-02-21 2017-02-21 Federal Signal Corporation Hydraulic fan drive system
US10330126B2 (en) * 2016-12-16 2019-06-25 Caterpillar Inc. Fan control system with electro-hydraulic valve providing three fan motor operational positions
WO2019101313A1 (en) * 2017-11-23 2019-05-31 Volvo Construction Equipment Ab A drive system for a working machine and a method for controlling the drive system

Also Published As

Publication number Publication date
JP2004508480A (en) 2004-03-18
DE10044607A1 (en) 2002-04-04
EP1315888A1 (en) 2003-06-04
WO2002020955A1 (en) 2002-03-14
CA2426452A1 (en) 2003-04-24
AU1387702A (en) 2002-03-22

Similar Documents

Publication Publication Date Title
AU741651B2 (en) System and method for controlling a variable geometry turbocharger
JP4675320B2 (en) Hydraulic drive device for work machine
KR101073202B1 (en) Method and device for attenuating the motion of hydraulic cylinders of mobile work machinery
EP1853768B1 (en) An energy recovery system for a work vehicle
US6481388B1 (en) Cooling fan drive control device
US5669461A (en) Automotive hydraulic system and method
KR100739419B1 (en) Hydraulic driving control device and hydraulic shovel with the control device
DE112005000083B4 (en) Load control device for the engine of a work vehicle
KR100915207B1 (en) hydraulic circuit of heavy equipment
EP1979546B1 (en) Method for controlling a hydraulic cylinder in a work machine and control system for a work machine
US6020651A (en) Engine control system for construction machine
US6837045B2 (en) Electrohydraulic lifting control device for industrial trucks
KR101948322B1 (en) Power regeneration device for work machine
EP0765970B1 (en) Hydraulic control apparatus for hydraulic construction machine
US7069674B2 (en) Hydraulic circuit for backhoe
US6854549B2 (en) Electronic engine speed controller
US5852933A (en) Hydraulic drives system for a press
JP4862078B2 (en) Construction machine and method for controlling construction machine
EP2518218B1 (en) System for driving a boom of a hybrid excavator, and method for controlling same
CN103890412B (en) Hydraulic control device and possess the engineering machinery of this hydraulic control device
EP2215310B1 (en) Load sensing system, working machine comprising the system, and method for controlling a hydraulic function
US5505043A (en) Hydraulic lift device for battery operated industrial trucks or the like
US8136271B2 (en) Hydraulic unit and construction machine including the same
EP0856107B1 (en) Output regulation with load sensing
US7669413B2 (en) Hybrid construction machine

Legal Events

Date Code Title Description
AS Assignment

Owner name: TEREX GERMANY GMBH & CO. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ZIPLIES, HERBERT;ESCH, UWE;REEL/FRAME:014411/0571;SIGNING DATES FROM 20030305 TO 20030307

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION