WO2006066713A1 - System und verfahren zum temperieren eines motoröls einer brennkraftmaschine eines kraftfahrzeugs - Google Patents
System und verfahren zum temperieren eines motoröls einer brennkraftmaschine eines kraftfahrzeugs Download PDFInfo
- Publication number
- WO2006066713A1 WO2006066713A1 PCT/EP2005/012935 EP2005012935W WO2006066713A1 WO 2006066713 A1 WO2006066713 A1 WO 2006066713A1 EP 2005012935 W EP2005012935 W EP 2005012935W WO 2006066713 A1 WO2006066713 A1 WO 2006066713A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coolant
- internal combustion
- engine oil
- combustion engine
- temperature
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
- F01P7/048—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using electrical drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/08—Arrangements of lubricant coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P2005/105—Using two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P5/12—Pump-driving arrangements
- F01P2005/125—Driving auxiliary pumps electrically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2031/00—Fail safe
- F01P2031/30—Cooling after the engine is stopped
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/04—Lubricant cooler
Definitions
- the invention relates to a system and a method for tempering an engine oil of an internal combustion engine of a motor vehicle according to the preamble of claim 1 or. of claim 8.
- the publications DE 199 43 002 C2, DE 102 26 928 A1 and DE 102 44 829 A1 for the temperature control of the engine oil describe a coolant-engine oil heat exchanger.
- a portion of the coolant for cooling the engine of the motor vehicle is branched from the cooling circuit and passed through the coolant-motor oil heat exchanger to the also guided through this engine oil by a heat exchange between the coolant and the To temper engine oil.
- the coolant is thereby discharged downstream of the internal combustion engine, d. H .
- the coolant for tempering the engine oil has a relatively high temperature.
- the coolant is also conducted through the coolant-motor oil heat exchanger by means of the coolant pump of the cooling circuit; a regulation of the cooling capacity of the coolant engine oil - heat exchanger according to the engine oil temperature is therefore not possible.
- the present invention is therefore an object of the invention to provide a system and a method for controlling the temperature of an engine oil of an internal combustion engine of a motor vehicle, which ensure a suitable temperature of the engine oil even in high-performance vehicles with a limited space for engine oil cooling devices.
- a system for controlling the temperature of an engine oil of an internal combustion engine of a motor vehicle which comprises an engine oil circuit for controlling the temperature of the engine oil comprising the internal combustion engine and a coolant / engine oil heat exchanger; and a coolant circuit for controlling the temperature of the internal combustion engine, which comprises in a main branch the internal combustion engine, a coolant radiator and a first coolant pump.
- the coolant circuit also has a secondary branch downstream of the coolant cooler, which separates the coolant Engine oil heat exchanger and a second coolant pump includes.
- a coolant cooled in the coolant radiator and, on the other hand, a coolant of an adjustable amount are passed through the coolant / engine oil heat exchanger by the second coolant pump.
- no large installation space is required for, for example, an air-motor oil cooler with a large air inflow area.
- the coolant return line of the coolant-engine oil heat exchanger opens into the coolant supply line of the main branch upstream of the internal combustion engine.
- the coolant return line of the coolant-engine oil heat exchanger may also be led into a coolant return line of the main branch downstream of the internal combustion engine.
- a control and regulating unit which controls the operation of the second coolant pump in the secondary branch and in parallel the operation of a fan of the coolant radiator in dependence on an engine oil temperature.
- the control unit can control the operation of the second coolant pump in the secondary branch also in Controlling dependence on a coolant temperature to prevent overheating of the coolant.
- the second coolant pump is an electrically driven coolant pump which can be operated independently of the operation of the internal combustion engine and the first coolant pump in the main branch of the coolant circuit.
- the engine oil circuit further includes an air engine oil cooler in series with the coolant engine oil heat exchanger.
- this air-engine oil cooler requires only a smaller air inflow surface than in conventional systems, so that only a smaller space must be available for this purpose.
- the method of tempering an engine oil of an internal combustion engine of a motor vehicle wherein the engine oil is passed through a coolant-engine oil heat exchanger through which a coolant of a coolant circuit for controlling the internal combustion engine with a coolant radiator is passed tempering the engine oil by a heat exchange between the engine oil and the coolant, characterized in that the cooled in the coolant radiator coolant is passed through the coolant-engine oil heat exchanger in response to a temperature of the engine oil.
- the coolant -Motoröl- heat exchanger on the one hand cooled in the coolant radiator coolant and on the other hand by the second Coolant pump passed a coolant of an adjustable amount.
- no large installation space is required for, for example, an air-motor oil cooler with a large air inflow area.
- the cooled in the coolant radiator coolant is passed through the coolant - engine oil heat exchanger also in response to a temperature of the coolant.
- the coolant is passed after flowing through the coolant -Motoröl -Wärme (2004) in adeffenzu slaughterhouse.
- the coolant cooled in the coolant radiator is preferably conducted through the coolant-engine oil heat exchanger by means of an electrically driven coolant pump, which can be operated independently of the operation of the internal combustion engine and of the first coolant pump in the main branch of the coolant circuit.
- the engine oil is also passed through an air motor oil cooler.
- FIG. 10 the structure of a system for controlling the temperature of an engine oil of an internal combustion engine according to a preferred, but non-limiting embodiment of the present invention is shown schematically.
- the internal combustion engine 10 is for this purpose connected to a coolant circuit 11 and a motor oil circuit 25.
- the coolant circuit 11 includes a main branch H 1 and a branch H 2 .
- the main branch H 1 of the coolant circuit 11 comprises the internal combustion engine 10, a coolant cooler 12 and a first coolant pump 16 as in conventional systems
- Coolant supply line 22, 24 of the internal combustion engine 10 is supplied, and the heated in the internal combustion engine 10 coolant is via a coolant return line 20 again returned to the coolant cooler 12 to be cooled again.
- a bypass line 18 is further provided in the main branch Hi of the coolant circuit 11, through which the coolant in the coolant return line 20 to the coolant cooler 12 over and without Cooling via the coolant supply line 24 is directly returned to the internal combustion engine 10.
- a control valve for example a two-way valve, is known to be arranged in the coolant supply line 22, 24.
- the main branch Hi of the coolant circuit 11 of the internal combustion engine 10 may further include, in a known manner, a surge tank, a coolant-transmission oil heat exchanger, various pressure and temperature sensors, control valves, and the like.
- the coolant circuit 11 further includes a sub-branch 1I 2 downstream of the coolant radiator 12.
- This sub-branch 1I 2 of the coolant circuit 11 comprises a second coolant pump 36 and a coolant-engine oil heat exchanger 28.
- the coolant cooled in the coolant radiator 12 flows through the second coolant Coolant pump 36 through a coolant supply line 38 in the coolant - engine oil heat exchanger 28 and is connected via a
- the coolant return line 40 leads the sub-branch 1I 2 into the coolant supply line 24 of the main branch Hi upstream of the internal combustion engine 10.
- the coolant from the coolant Engine Oil Heat Exchanger 36 via the coolant return line 40 of the sub-branch 1I 2 in the coolant return line 20 of the main branch Hi of the coolant circuit 11 is led back downstream of the internal combustion engine 10, d. H . is passed to the internal combustion engine 10 over.
- the second coolant pump 36 in the secondary branch H 2 of the coolant circuit 11 is preferably an electrically driven pump which is connected to the vehicle electrical system or the battery of the motor vehicle is fed.
- the operation of the second coolant pump 36 can basically be controlled independently of the operating state (on / off) of the internal combustion engine 10.
- a control and regulating unit 42 For controlling the second coolant pump 36 and the fan 14 of the coolant cooler 12, a control and regulating unit 42 is provided.
- This control and regulating unit 42 u. a. a coolant temperature T RM detected by a coolant temperature sensor 44 and an engine oil temperature T M a detected by an engine oil temperature sensor 46 are input.
- the coolant temperature sensor 44 and the engine oil temperature sensor 46 preferably measure the coolant temperature T RM or engine oil temperature T M ⁇ _> at the output of the internal combustion engine 10.
- the already mentioned engine oil circuit 25 comprises the internal combustion engine 10, an air engine oil cooler 26 and the coolant / engine oil heat exchanger 28.
- the engine oil is first cooled in the air / engine oil cooler 26 by an air flow and then via an engine oil line 32 to the coolant / engine oil.
- Heat exchanger 28 output In the coolant-engine oil heat exchanger 28, the engine oil in the engine oil circuit 25 is in heat exchange with the coolant in the side branch H 2 of the coolant circuit 11 and can be cooled during operation of the second coolant pump 36.
- the engine oil cooled in the air motor oil cooler 26 and the coolant-motor oil heat exchanger 28 is supplied to the engine 10 via a motor oil supply line 34 by means of a pump device 48.
- the heated in the internal combustion engine 10 engine oil is via a
- the operation of the above-described system for tempering the engine oil of the internal combustion engine 10 will now be explained with reference to the single figure.
- the mode of operation of the main branch Hi of the coolant circuit 11 corresponds to those of conventional systems and should therefore not be described in greater detail in the context of this invention.
- the second coolant pump 36 is switched off, so that no coolant flows through the secondary branch H 2 of the coolant circuit 11.
- the engine oil is therefore cooled only by the air engine oil cooler 26. If the engine oil temperature T MO detected by the engine oil temperature sensor 46 exceeds a first limit value (eg 12O 0 C), then the second coolant pump 36 is switched on by the control and regulation unit 42.
- a first limit value eg 12O 0 C
- the second coolant pump 36 controls the control unit 42 and the fan 14 of the coolant radiator 12 so that the speed of the radiator 14 is increased, d. H. the cooling capacity of the coolant cooler 12 is increased. This measure ensures that the heat absorbed from the engine oil can be released from the coolant to the environment.
- the control and regulation unit is preferably also supplied with the coolant temperature T RM detected by the coolant temperature sensor 44. If this coolant temperature T RM exceeds an upper limit value, the control and regulating unit 42 can switch off the second coolant pump 36 and thus the intake of End heat from the engine oil to prevent overheating of the coolant and thus the internal combustion engine 10.
- the controls of the second coolant pump 36 and the fan 14 of the coolant cooler 12 by the control and regulating unit 42 are usually load-dependent, d. H. Depending on the driving condition and driving speed of the motor vehicle, more or less cooling of the coolant and of the engine oil is required.
- a suitable temperature of the engine oil can be ensured at any time, even if the air motor oil cooler 26 is dimensioned relatively small, d. H . has a relatively small Luftanström design, or the air flow of the air motor oil cooler 26 is limited due to the driving condition of the motor vehicle (eg. Mountain, wind sideways or from behind).
- the coolant cooled in the coolant cooler 12 is used, and the flow rate of the coolant provided for the heat exchange is optimally controlled by the second coolant pump 36.
- the coolant in the coolant circuit 11 can be effectively prevented from boiling off.
- the control unit 42 via the second coolant pump 36 can cause a coolant flow through the coolant radiator 12.
- the control valve 17 in the coolant supply line 22, 24 from the coolant cooler 12 to the internal combustion engine 10 prevents the coolant from circulating only through the secondary branch H 2 of the coolant circuit 11.
- the second coolant pump 36 and the fan 12 of the coolant radiator 12 are turned off again by the control unit 42 to the electrical system too heavy a burden.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/793,524 US7810457B2 (en) | 2004-12-21 | 2005-12-02 | System and method for controlling oil temperature of an internal combustion engine in a motor vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004061426A DE102004061426A1 (de) | 2004-12-21 | 2004-12-21 | System und Verfahren zum Temperieren eines Motoröls einer Brennkraftmaschine eines Kraftfahrzeugs |
DE102004061426.1 | 2004-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006066713A1 true WO2006066713A1 (de) | 2006-06-29 |
Family
ID=36283945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/012935 WO2006066713A1 (de) | 2004-12-21 | 2005-12-02 | System und verfahren zum temperieren eines motoröls einer brennkraftmaschine eines kraftfahrzeugs |
Country Status (3)
Country | Link |
---|---|
US (1) | US7810457B2 (de) |
DE (1) | DE102004061426A1 (de) |
WO (1) | WO2006066713A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006020951A1 (de) * | 2005-07-28 | 2007-02-01 | Audi Ag | Kühlsystem für ein Fahrzeug und Verfahren zum Betreiben eines Kühlsystems |
DE102008032130B4 (de) * | 2008-07-08 | 2010-07-01 | Continental Automotive Gmbh | Verfahren und Vorrichtung zur Diagnose einer Kühlmittelpumpe für eine Brennkraftmaschine |
DE102009023724A1 (de) * | 2009-06-03 | 2010-12-09 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Kühlen von Getriebeöl sowie Fahrzeug mit einem Getriebeölkreislauf, der thermisch an einen Kühlkreislauf eines Verbrennungsmotors des Fahrzeugs gekoppelt ist |
JP5293834B2 (ja) * | 2009-11-13 | 2013-09-18 | トヨタ自動車株式会社 | 内燃機関の潤滑システム |
DE102010026657A1 (de) | 2010-07-09 | 2011-04-28 | Daimler Ag | Verfahren und Kühlmittelkreis zum Kühlen eines Verbrennungsmotors eines Fahrzeugs |
DE102010044401A1 (de) * | 2010-09-04 | 2012-03-08 | Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) | Kraftfahrzeug mit in einem Frontbereich angeordneten Wärmetauschern und Verfahren zum Betreiben eines Kühlsystems eines Fahrzeugs |
US9109840B2 (en) * | 2011-02-17 | 2015-08-18 | Delphi Technologies, Inc. | Unitary heat pump air conditioner having a heat exchanger with an integral accumulator |
US9239193B2 (en) * | 2011-02-17 | 2016-01-19 | Delphi Technologies, Inc. | Unitary heat pump air conditioner having a heat exchanger with an integral receiver and sub-cooler |
US8887688B1 (en) * | 2011-03-22 | 2014-11-18 | Gene Neal | Oil filtering and cooling system for compression ignition engines |
US9016245B2 (en) | 2012-12-31 | 2015-04-28 | Caterpillar Inc. | Engine fluid cooling assembly |
JP6108895B2 (ja) * | 2013-03-19 | 2017-04-05 | ヤンマー株式会社 | 内燃機関 |
US9523306B2 (en) * | 2014-05-13 | 2016-12-20 | International Engine Intellectual Property Company, Llc. | Engine cooling fan control strategy |
US9551272B2 (en) * | 2014-11-05 | 2017-01-24 | Deere & Company | Power system with heat transfer circuits |
SE541771C2 (en) | 2017-05-10 | 2019-12-10 | Scania Cv Ab | A cooling arrangement for cooling of an electric machine and at least one further component of an electric power unit and a vehicle comprising such a cooling arrangement |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE766237C (de) * | 1938-02-17 | 1952-04-21 | Sueddeutsche Kuehler Behr | Fluessigkeitsgekuehlter OElkuehler fuer Brennkraftmaschinen mit Heisskuehlung |
FR2571431A1 (fr) * | 1984-10-09 | 1986-04-11 | Renault Vehicules Ind | Dispositif de refroidissement pour moteur a combustion interne |
US5215044A (en) * | 1991-02-11 | 1993-06-01 | Behr Gmbh & Co. | Cooling system for a vehicle having an internal-combustion engine |
US20020112679A1 (en) * | 2001-02-20 | 2002-08-22 | Volvo Trucks North America, Inc. | Vehicle lubricant temperature control |
DE10146313A1 (de) * | 2001-09-20 | 2003-04-17 | Daimler Chrysler Ag | Kühlkreislauf einer flüssigkeitsgekühlten Brennkraftmaschine |
Family Cites Families (12)
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JPS58106123A (ja) * | 1981-12-18 | 1983-06-24 | Tsuneo Ishii | 舶用エンジンの冷却システム |
JPS59218326A (ja) * | 1984-05-10 | 1984-12-08 | Nissan Motor Co Ltd | エンジンの冷却装置 |
CA1304480C (en) * | 1987-12-28 | 1992-06-30 | Shuji Katoh | Engine room-cooling control system |
JPH10238347A (ja) | 1997-02-25 | 1998-09-08 | Toyo Radiator Co Ltd | 自動車用熱交換器 |
DE19715324A1 (de) | 1997-04-12 | 1998-10-15 | Bayerische Motoren Werke Ag | Wärmetauscher für flüssige Wärmetauschmittel |
DE19943002C2 (de) | 1999-09-09 | 2003-01-23 | Porsche Ag | Kühleinrichtung für eine Brennkraftmaschine |
JP3942836B2 (ja) * | 2001-03-09 | 2007-07-11 | ジヤトコ株式会社 | 車両用自動変速機の作動油冷却装置 |
DE10226928A1 (de) | 2002-06-17 | 2004-01-08 | Siemens Ag | Verfahren zum Betrieb einer flüssigkeitsgekühlten Brennkraftmaschine |
US6668764B1 (en) * | 2002-07-29 | 2003-12-30 | Visteon Global Techologies, Inc. | Cooling system for a diesel engine |
DE10244829A1 (de) | 2002-09-25 | 2004-04-01 | Bayerische Motoren Werke Ag | Flüssigkeitsgekühlte Brennkraftmaschine sowie Verfahren zur Durchführung eines Abwärmetransfers |
DE10320746A1 (de) | 2003-05-09 | 2004-12-02 | Daimlerchrysler Ag | Erweiterter Lüfternachlauf |
DE10353298B4 (de) | 2003-11-14 | 2014-12-18 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Flüssigkeitsgekühlte Brennkraftmaschine |
-
2004
- 2004-12-21 DE DE102004061426A patent/DE102004061426A1/de not_active Withdrawn
-
2005
- 2005-12-02 WO PCT/EP2005/012935 patent/WO2006066713A1/de active Application Filing
- 2005-12-02 US US11/793,524 patent/US7810457B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE766237C (de) * | 1938-02-17 | 1952-04-21 | Sueddeutsche Kuehler Behr | Fluessigkeitsgekuehlter OElkuehler fuer Brennkraftmaschinen mit Heisskuehlung |
FR2571431A1 (fr) * | 1984-10-09 | 1986-04-11 | Renault Vehicules Ind | Dispositif de refroidissement pour moteur a combustion interne |
US5215044A (en) * | 1991-02-11 | 1993-06-01 | Behr Gmbh & Co. | Cooling system for a vehicle having an internal-combustion engine |
US20020112679A1 (en) * | 2001-02-20 | 2002-08-22 | Volvo Trucks North America, Inc. | Vehicle lubricant temperature control |
DE10146313A1 (de) * | 2001-09-20 | 2003-04-17 | Daimler Chrysler Ag | Kühlkreislauf einer flüssigkeitsgekühlten Brennkraftmaschine |
Also Published As
Publication number | Publication date |
---|---|
US20090107424A1 (en) | 2009-04-30 |
US7810457B2 (en) | 2010-10-12 |
DE102004061426A1 (de) | 2006-07-06 |
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