EP1348070A1 - Kühlsystem für ein kraftfahrzeug - Google Patents

Kühlsystem für ein kraftfahrzeug

Info

Publication number
EP1348070A1
EP1348070A1 EP01271805A EP01271805A EP1348070A1 EP 1348070 A1 EP1348070 A1 EP 1348070A1 EP 01271805 A EP01271805 A EP 01271805A EP 01271805 A EP01271805 A EP 01271805A EP 1348070 A1 EP1348070 A1 EP 1348070A1
Authority
EP
European Patent Office
Prior art keywords
cooling system
unit
coolant
cooler
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.)
Withdrawn
Application number
EP01271805A
Other languages
German (de)
English (en)
French (fr)
Inventor
Reiner Hohl
Manfred Schmitt
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1348070A1 publication Critical patent/EP1348070A1/de
Withdrawn legal-status Critical Current

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
    • F01P3/00—Liquid cooling
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • 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
    • F01P3/00—Liquid cooling
    • F01P3/18—Arrangements or mounting of liquid-to-air heat-exchangers
    • F01P2003/182—Arrangements or mounting of liquid-to-air heat-exchangers with multiple heat-exchangers
    • 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
    • F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
    • 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
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature
    • F01P2025/46—Engine parts temperature
    • 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
    • F01P2050/00—Applications
    • F01P2050/24—Hybrid vehicles
    • 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
    • F01P2050/00—Applications
    • F01P2050/30—Circuit boards
    • 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
    • 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
    • F01P2060/18—Heater
    • F01P2060/185—Heater for alternators or generators
    • 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
    • F01P7/164—Controlling of coolant flow the coolant being liquid by thermostatic control by varying pump speed

Definitions

  • the present invention relates to a cooling system for a motor vehicle with at least one coolant pump which is intended to circulate a coolant in the cooling system, and with a main cooler which has at least one main cooler inlet and at least one main cooler outlet, the main cooler inlet at least temporarily with a Coolant outlet of an internal combustion engine to be cooled is connected, while the main cooler outlet is connected to a coolant inlet of the internal combustion engine.
  • a cooler fan 45 which serves to direct an air flow onto the cooler 10 so that the heat can be released into the ambient air in the desired manner via the cooler 10.
  • the radiator fan 45 can be regulated or controlled, for example, as a function of the coolant temperature and / or as a function of the vehicle speed and thus of the airstream.
  • At least one second unit to be cooled is also provided, which is connected to the cooling system via an additional cooler.
  • the second unit to be cooled can be operated at a temperature that is different from the engine temperature level, for example a significantly lower temperature.
  • the first unit is an electrical machine, for example a generator, a starter, an (additional) drive motor or a starter generator.
  • the second unit is an electrical circuit, in many cases it may be necessary for this circuit to be operated in a significantly lower temperature range than the internal combustion engine.
  • a particularly preferred embodiment of the cooling system according to the invention provides that the first unit is an electrical machine and in particular a starter generator, and that the second unit is a power electronics circuit assigned to the starter generator.
  • Starter generators combine the function of conventional starters and conventional alternators or generators. Starter generators are relatively strong heat sources and therefore have to be cooled in many cases.
  • One embodiment of the cooling system according to the invention provides that a mixing valve is provided between the main cooler inlet and the coolant outlet, which is connected in a manner known per se via a short-circuit line to the suction side of the coolant pump, and that the first unit is located between the mixing valve and the coolant outlet of the internal combustion engine is connected.
  • the waste heat from the first unit can be used during the warm-up phase of the internal combustion engine to heat it up more quickly.
  • the mixing valve completely or partially shuts off the coolant supply to the main cooler, so that both the coolant flowing back from the internal combustion engine and the coolant directed through the first unit are supplied via the short-circuit line to the suction side of the coolant pump.
  • the delivery rate of the coolant pump depends on the temperature detected by the temperature sensor.
  • Such a dependency of the delivery capacity of the coolant pump can be provided for the entire temperature range in question or only for certain temperature ranges. If, for example, the temperature sensor detects that the temperature of the second unit is too high, even though a valve assigned to it is completely open, the coolant pump can be controlled by this measure in such a way that its delivery rate is increased.
  • FIG. 3 shows a second embodiment of the cooling system according to the invention, in which a first unit in the form of an oil cooler and a second unit in the form of a power electronics circuit are provided
  • FIG. 4 shows a third embodiment of the cooling system according to the invention, in which two first units in the form of an oil cooler and a starter generator and a second unit in the form of a power electronics circuit are provided, the power electronics circuit being assigned to the starter generator, and
  • the second unit 70 can be operated at a significantly lower temperature than the internal combustion engine 20.
  • the coolant emerging from the second unit 70 has in the
  • the additional cooler 15 has an additional cooler inlet 16 which is connected to the pressure side 34 of the coolant pump 30 via a line section 119 and a line section 115. Furthermore, the additional cooler 15 has an additional cooler outlet 17, which is connected via a line section 120 to the coolant inlet of the power electronics circuit 70, which in this embodiment forms a second unit to be cooled, which is connected to the cooling system via the additional cooler 15.
  • a valve 72 is provided in the line section 120 in order to set the amount of coolant used to cool the power electronics circuit 70 and use it to determine the operating temperature of the power electronics circuit 70.
  • the power electronics circuit 70 is also assigned a temperature sensor 71, which is preferably arranged in the most heat-sensitive area of the power electronics circuit 70.
  • the power electronics circuit 70 may include circuit components that .
  • the ' starter generator 60 can be operated at lower temperatures than the internal combustion engine 20'.
  • the coolant flow can be throttled 30 by the engine 20 even at a high flow rate of the coolant pump, beispiels-, by the valve 50 to the operating temperature of the engine 20 to increase '.
  • the waste heat from the starter generator 6 can only be used to a limited extent in this connection variant to shorten the warm-up phase of the internal combustion engine 20 ′ , because the coolant emerging from the starter generator 60 can only flow back to the cooling branch of the internal combustion engine 20 via the main cooler 10.
  • the starter generator 60 is again assigned a power electronics circuit 70 which forms a second unit which is connected to the cooling system via an additional cooler 15.

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)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Hybrid Electric Vehicles (AREA)
EP01271805A 2000-12-23 2001-11-21 Kühlsystem für ein kraftfahrzeug Withdrawn EP1348070A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10065003 2000-12-23
DE10065003A DE10065003A1 (de) 2000-12-23 2000-12-23 Kühlsystem für ein Kraftfahrzeug
PCT/DE2001/004356 WO2002052132A1 (de) 2000-12-23 2001-11-21 Kühlsystem für ein kraftfahrzeug

Publications (1)

Publication Number Publication Date
EP1348070A1 true EP1348070A1 (de) 2003-10-01

Family

ID=7668975

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01271805A Withdrawn EP1348070A1 (de) 2000-12-23 2001-11-21 Kühlsystem für ein kraftfahrzeug

Country Status (6)

Country Link
US (1) US20020189800A1 (ko)
EP (1) EP1348070A1 (ko)
JP (1) JP2004515715A (ko)
KR (1) KR20020081326A (ko)
DE (1) DE10065003A1 (ko)
WO (1) WO2002052132A1 (ko)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE514912T1 (de) * 2002-11-08 2011-07-15 Valeo Thermique Moteur Sa Verwaltungssystem für thermische energie erzeugt durch einen kraftfahrzeugwärmemotor
AT510741B1 (de) * 2010-11-18 2014-11-15 Avl List Gmbh Stromerzeugungsaggregat
DE102012208419A1 (de) * 2012-05-21 2013-11-21 Zf Friedrichshafen Ag Konzept zum Ansteuern einer gemeinsam mit einem Verbrennungsmotor in einen Kühlkreislauf eingebundenen elektrischen Maschine
DE102013012945B4 (de) 2013-08-02 2019-03-28 Audi Ag Verfahren zur Kühlung eines Nebenverbrauchers unter Verwendung eines Kühlungssystems zur Abfuhr von Wärme
WO2015090343A1 (en) 2013-12-19 2015-06-25 Volvo Truck Corporation Internal combustion engine system
KR101526427B1 (ko) * 2014-06-23 2015-06-05 현대자동차 주식회사 차량용 열교환기
KR102266898B1 (ko) 2019-12-06 2021-06-21 한국항공우주연구원 일체형 하이브리드 동력장치

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JP2524507B2 (ja) * 1987-11-07 1996-08-14 アルプス電気株式会社 光書込みヘッド
US4918923A (en) * 1988-02-24 1990-04-24 Woollenweber William E Internal combustion engine turbosystem and method
DE4104093A1 (de) * 1991-02-11 1992-08-13 Behr Gmbh & Co Kuehlanlage fuer ein fahrzeug mit verbrennungsmotor
GB9116661D0 (en) * 1991-08-01 1991-09-18 The Technology Partnership Ltd Vehicle cooling system
JPH05131848A (ja) * 1991-11-15 1993-05-28 Toyota Motor Corp ハイブリツド車の駆動システム制御装置
US5255733A (en) * 1992-08-10 1993-10-26 Ford Motor Company Hybird vehicle cooling system
US5641016A (en) * 1993-12-27 1997-06-24 Nippondenso Co., Ltd. Air-conditioning apparatus for vehicle use
US5598718A (en) * 1995-07-13 1997-02-04 Westinghouse Electric Corporation Refrigeration system and method utilizing combined economizer and engine coolant heat exchanger
FR2748428B1 (fr) * 1996-05-07 1998-06-19 Renault Systeme de refroidissement pour vehicule a propulsion hybride
US6124644A (en) * 1998-01-13 2000-09-26 Modine Manufacturing Company Single core dual circuit heat exchange system
ITTO980348A1 (it) * 1998-04-24 1999-10-24 Gate Spa Sistema di controllo a consumo elettrico minimo per un impianto di raf freddamento per un motore a combustione interna.
US6178928B1 (en) * 1998-06-17 2001-01-30 Siemens Canada Limited Internal combustion engine total cooling control system
US6098576A (en) * 1999-02-12 2000-08-08 General Electric Company Enhanced split cooling system
US6158398A (en) * 1999-05-21 2000-12-12 Caterpillar Inc. Turbocharged engine cooling system with two two-pass radiators
DE19954327B4 (de) * 1999-11-11 2005-07-14 Robert Bosch Gmbh Verfahren und Vorrichtung zum Transport von in einem Kraftfahrzeug entstehender Wärmeenergie
DE19960960C1 (de) * 1999-12-17 2001-04-26 Bosch Gmbh Robert Wärmeaustauschsystem für die Heizung eines Fahrzeugs mit Hybridantrieb
DE10006877A1 (de) * 2000-02-16 2001-09-06 Isad Electronic Sys Gmbh & Co Kühlsystem für ein Kraftfahrzeug

Non-Patent Citations (1)

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Title
See references of WO02052132A1 *

Also Published As

Publication number Publication date
WO2002052132A1 (de) 2002-07-04
KR20020081326A (ko) 2002-10-26
US20020189800A1 (en) 2002-12-19
JP2004515715A (ja) 2004-05-27
DE10065003A1 (de) 2002-07-04

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