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US20100101512A1 - Control Appliance For Using In The Engine Compartment Or In The Transmission Of A Motor Vehicle And Cooling System For Such A Control Appliance - Google Patents

Control Appliance For Using In The Engine Compartment Or In The Transmission Of A Motor Vehicle And Cooling System For Such A Control Appliance Download PDF

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Publication number
US20100101512A1
US20100101512A1 US12/531,775 US53177508A US2010101512A1 US 20100101512 A1 US20100101512 A1 US 20100101512A1 US 53177508 A US53177508 A US 53177508A US 2010101512 A1 US2010101512 A1 US 2010101512A1
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US
United States
Prior art keywords
engine
control device
transmission
transmission fluid
line section
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
US12/531,775
Inventor
Andreas Vögerl
Gerhard Bauer
Jürgen Henniger
Uwe Trenner
Helmut Karrer
Alexander Wenk
Marion Gebhardt
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.)
Vitesco Technologies Germany GmbH
Original Assignee
Conti Temic Microelectronic 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 Conti Temic Microelectronic GmbH filed Critical Conti Temic Microelectronic GmbH
Assigned to CONTI TEMIC MICROELECTRONIC GMBH reassignment CONTI TEMIC MICROELECTRONIC GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GEBHARDT, MARION, WENK, ALEXANDER, HENNIGER, JURGEN, TRENNER, UWE, VOGERL, ANDREAS, BAUER, GERHARD, KARRER, HELMUT
Publication of US20100101512A1 publication Critical patent/US20100101512A1/en
Priority to US14/714,851 priority Critical patent/US9743563B2/en
Assigned to VITESCO TECHNOLOGIES GERMANY GMBH reassignment VITESCO TECHNOLOGIES GERMANY GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CONTI TEMIC MICROELECTRONIC GMBH
Assigned to VITESCO TECHNOLOGIES GERMANY GMBH reassignment VITESCO TECHNOLOGIES GERMANY GMBH CHANGE OF ADDRESS Assignors: VITESCO TECHNOLOGIES GERMANY GMBH
Abandoned legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
    • H05K7/20872—Liquid coolant without phase change
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
    • F16H61/0006—Electronic control units for transmission control, e.g. connectors, casings or circuit boards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0412—Cooling or heating; Control of temperature

Definitions

  • the invention relates to a control device for use in the engine compartment or in the transmission of a motor vehicle. Furthermore, the invention relates to a cooling arrangement for such a control device.
  • engine or transmission fluid in particular oil, which is present in an engine or transmission fluid reservoir of a motor vehicle engine, has a temperature, which lies clearly below the temperature limit for typical electronic components.
  • Such engine or transmission fluid can be guided via the line section for the engine or transmission fluid. Due to the thermal coupling to the housing section for the control unit comprising the electronic components tempering of the control unit is ensured, which keeps the temperature of the control unit below its temperature limit. A failure of the control unit caused by higher temperatures is thus safely prevented. The expenditure for a passive cooling of the control device can be reduced or totally avoided.
  • a cooling of the engine or transmission fluid for ensuring that this fluid in the line section has a sufficient low temperature can be achieved by a corresponding guidance of the fluid over a sufficient long fluid path, in which the fluid has sufficient occasion to release heat.
  • a fluid path can be designed in particular in spiral form.
  • At least one embodiment of the invention enables a compact housing arrangement with the line section.
  • a design of the line section according at least one aspect of the invention allows for a cost-efficient embodiment of it and for a simple assembly.
  • the base body of the line section can simultaneously represent the base plate, what again increases the compactness of the structure of the housing of the control device.
  • Materials for the base body and/or the cover according to one or more embodiments of the invention turned out to be particularly suitable for the guidance of engine or transmission fluid with a typical temperature of 120° C.
  • the advantages of a cooling arrangement according to one or more aspects of the invention correspond to those, which were already explained above while referring to the control device.
  • the engine or transmission fluid pump ensures a safe and in particular steady flow of engine or transmission fluid through the line section of the housing of the control device.
  • a fluid cooling device ensures a further cooling effect by the engine or transmission fluid, so that the fluid can enter the line section of the housing of the control device with again lower temperature.
  • cooling engine or transmission fluid preferably the oil usually present in the engine compartment or in the transmission can be used.
  • FIG. 1 shows schematically an oil circulation with components of a motor vehicle belonging thereto
  • FIG. 2 shows in a perspective exploded view components of a transmission control device for use in the engine compartment of the motor vehicle according to FIG. 1 ;
  • FIG. 3 shows the components of the transmission control device according to FIG. 2 with a mounted cover.
  • FIG. 1 shows schematically an oil circulation 1 of a motor vehicle.
  • a part of the oil circulation 1 serves as a cooling arrangement for a control device 2 , which is used in an engine compartment of the motor vehicle.
  • the control device 2 is in particular a transmission control device. However, the control device 2 can also be used as an engine control device.
  • the cooling arrangement has a transmission fluid reservoir in form of an oil sump 3 .
  • a transmission fluid pump 4 serves for recycling transmission fluid 5 through a transmission fluid circulation schematically shown by arrows in FIG. 1 .
  • a transmission fluid supply 6 schematically shown by an arrow in FIG. 1 is connected with an inlet 7 of a line section 8 of a housing 9 of the control device 2 .
  • a housing section 10 for a control unit of the control device 2 i.e. in particular for a control electronics, is thermally coupled to the line section 8 .
  • FIGS. 2 and 3 Details for the structure of the line section 8 are shown in FIGS. 2 and 3 .
  • Part of the housing 9 is a base plate 11 , at which the control unit in the housing section 10 is mounted.
  • the line section 8 is formed section-wise by the base plate 11 .
  • the line section 8 can also be placed as a separate part on the base plate 11 .
  • the line section 8 is formed in two pieces with a base body 12 and a cover 13 .
  • the base plate 11 is a component of the base body 12 and is integrally molded to the latter.
  • the cover 13 is fluid-tight placed on the base body 12 , however, a leakage rate being admissible up to a pre-determined tolerance limit.
  • the cover 13 fluid-tight connected to the base body 12 in particular by welding, caulking or screwing.
  • the base body 12 and the cover 13 can be made of aluminum, casting or plastic material.
  • the inlet 7 is formed in the cover 13 and is fluid connected to a fluid channel section 14 in the base body 12 .
  • the base body 12 At a side of the cover 13 located opposite to the inlet 7 the base body 12 comprises an outlet 15 , which is likewise fluid-connected to the channel portion 14 .
  • a transmission fluid discharge 16 outlined in FIG. 1 by a further arrow is fluid-connected to the outlet 15 of the line section 8 .
  • the transmission fluid discharge 16 in turn is fluid-connected to the oil sump 3 .
  • a fluid cooling device 17 is arranged between the transmission fluid pump 4 and the inlet 7 .
  • the shown example of embodiment is a transmission fluid 5 , i.e. oil, in particular transmission oil.
  • the control device 2 is mounted to a transmission 18 schematically represented in FIG. 1 . Also the transmission 18 is supplied with the transmission fluid 5 . On this occasion; temperatures up to 155° C. appear in the transmission, to which also the control device 2 is exposed. With the transmission fluid 5 furthermore a coupling 19 equally schematically outlined in FIG. 1 is provided.
  • Cooling of the control device 2 is performed as follows: From the oil sump 3 with the aid of the transmission fluid pump 4 the transmission fluid 5 is transported through the fluid cooling device 17 to the coupling 19 . A part of the transported transmission fluid 5 is pumped via the transmission fluid supply 6 into the inlet 7 of the line section 8 . The transmission fluid 5 flows through the line section 8 at the housing section 10 of the housing 9 of the control device 2 and flows out from the channel portion 14 through the outlet 15 . In order to promote the transmission fluid flow between the inlet and the outlet 15 , a chimney effect can be used in the channel portion 14 . The leaking transmission fluid 5 returns via the transmission fluid discharge 16 into the oil sump 3 . In the oil sump 3 the transmission fluid 5 has a maximum temperature of approx.
  • This oil which is cooler compared to the transmission temperatures, thus entails a cooling of the control unit in the housing section 10 of the control device 2 .

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Details Of Gearings (AREA)

Abstract

A control device for use in the engine compartment or in the transmission of a motor vehicle. The control device has a housing comprising a housing section for a control unit. The housing also has a line section for the motor or transmission fluid. The line section is thermally coupled to the housing section for the control unit. Such a control device and a cooling arrangement therefore ensure that the electronic components in the control device are cooled such that a pre-determined temperature limit for the electronic components is not exceeded.

Description

    CROSS REFERENCE TO RELATED APPLICATIONS
  • This application is the U.S. national phase application of PCT International Application No. PCT/DE2008/000453, filed Mar. 14, 2008, which claims priority to German Patent Application No. DE 10 2007 014 276.7, filed Mar. 20, 2007, the contents of such applications being incorporated by reference herein.
    • BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The invention relates to a control device for use in the engine compartment or in the transmission of a motor vehicle. Furthermore, the invention relates to a cooling arrangement for such a control device.
  • 2. Description of the Related Art
  • In automobile engineering control devices, in particular engine control devices or transmission control devices, are mounted on-site at the engine or in the transmission in order to save place. Thus, the requirements to the control devices are very high, when it comes to their tightness, mechanical robustness and temperature endurance. With known engines transmission oil achieves temperatures up to for example 155° C.
    • SUMMARY OF THE INVENTION
  • It is an object of at least one aspect of the present invention to cool electronic components in control devices, which are exposed to such temperatures, such that a pre-determined temperature limit for the electronic components is not exceeded.
  • According to aspects of the invention it was recognized that engine or transmission fluid, in particular oil, which is present in an engine or transmission fluid reservoir of a motor vehicle engine, has a temperature, which lies clearly below the temperature limit for typical electronic components. Such engine or transmission fluid can be guided via the line section for the engine or transmission fluid. Due to the thermal coupling to the housing section for the control unit comprising the electronic components tempering of the control unit is ensured, which keeps the temperature of the control unit below its temperature limit. A failure of the control unit caused by higher temperatures is thus safely prevented. The expenditure for a passive cooling of the control device can be reduced or totally avoided. A cooling of the engine or transmission fluid for ensuring that this fluid in the line section has a sufficient low temperature, can be achieved by a corresponding guidance of the fluid over a sufficient long fluid path, in which the fluid has sufficient occasion to release heat. Such a fluid path can be designed in particular in spiral form.
  • At least one embodiment of the invention enables a compact housing arrangement with the line section.
  • A design of the line section according at least one aspect of the invention allows for a cost-efficient embodiment of it and for a simple assembly. The base body of the line section can simultaneously represent the base plate, what again increases the compactness of the structure of the housing of the control device.
  • Materials for the base body and/or the cover according to one or more embodiments of the invention turned out to be particularly suitable for the guidance of engine or transmission fluid with a typical temperature of 120° C.
  • The advantages of a cooling arrangement according to one or more aspects of the invention correspond to those, which were already explained above while referring to the control device. The engine or transmission fluid pump ensures a safe and in particular steady flow of engine or transmission fluid through the line section of the housing of the control device.
  • A fluid cooling device according to one or more embodiments of the invention ensures a further cooling effect by the engine or transmission fluid, so that the fluid can enter the line section of the housing of the control device with again lower temperature.
  • As a cooling engine or transmission fluid preferably the oil usually present in the engine compartment or in the transmission can be used.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • An example of embodiment of the invention is described in the following on the basis of the drawing, in which
  • FIG. 1 shows schematically an oil circulation with components of a motor vehicle belonging thereto;
  • FIG. 2 shows in a perspective exploded view components of a transmission control device for use in the engine compartment of the motor vehicle according to FIG. 1; and
  • FIG. 3 shows the components of the transmission control device according to FIG. 2 with a mounted cover.
    •  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • FIG. 1 shows schematically an oil circulation 1 of a motor vehicle. A part of the oil circulation 1 serves as a cooling arrangement for a control device 2, which is used in an engine compartment of the motor vehicle. The control device 2 is in particular a transmission control device. However, the control device 2 can also be used as an engine control device.
  • The cooling arrangement has a transmission fluid reservoir in form of an oil sump 3. A transmission fluid pump 4 serves for recycling transmission fluid 5 through a transmission fluid circulation schematically shown by arrows in FIG. 1. A transmission fluid supply 6 schematically shown by an arrow in FIG. 1 is connected with an inlet 7 of a line section 8 of a housing 9 of the control device 2. A housing section 10 for a control unit of the control device 2, i.e. in particular for a control electronics, is thermally coupled to the line section 8.
  • Details for the structure of the line section 8 are shown in FIGS. 2 and 3. Part of the housing 9 is a base plate 11, at which the control unit in the housing section 10 is mounted. The line section 8 is formed section-wise by the base plate 11. Alternatively, the line section 8 can also be placed as a separate part on the base plate 11. The line section 8 is formed in two pieces with a base body 12 and a cover 13. The base plate 11 is a component of the base body 12 and is integrally molded to the latter. The cover 13 is fluid-tight placed on the base body 12, however, a leakage rate being admissible up to a pre-determined tolerance limit. The cover 13 fluid-tight connected to the base body 12 in particular by welding, caulking or screwing. The base body 12 and the cover 13 can be made of aluminum, casting or plastic material.
  • The inlet 7 is formed in the cover 13 and is fluid connected to a fluid channel section 14 in the base body 12. At a side of the cover 13 located opposite to the inlet 7 the base body 12 comprises an outlet 15, which is likewise fluid-connected to the channel portion 14.
  • A transmission fluid discharge 16 outlined in FIG. 1 by a further arrow is fluid-connected to the outlet 15 of the line section 8. The transmission fluid discharge 16 in turn is fluid-connected to the oil sump 3. Between the transmission fluid pump 4 and the inlet 7 a fluid cooling device 17 is arranged.
  • The shown example of embodiment is a transmission fluid 5, i.e. oil, in particular transmission oil.
  • The control device 2 is mounted to a transmission 18 schematically represented in FIG. 1. Also the transmission 18 is supplied with the transmission fluid 5. On this occasion; temperatures up to 155° C. appear in the transmission, to which also the control device 2 is exposed. With the transmission fluid 5 furthermore a coupling 19 equally schematically outlined in FIG. 1 is provided.
  • Cooling of the control device 2 is performed as follows: From the oil sump 3 with the aid of the transmission fluid pump 4 the transmission fluid 5 is transported through the fluid cooling device 17 to the coupling 19. A part of the transported transmission fluid 5 is pumped via the transmission fluid supply 6 into the inlet 7 of the line section 8. The transmission fluid 5 flows through the line section 8 at the housing section 10 of the housing 9 of the control device 2 and flows out from the channel portion 14 through the outlet 15. In order to promote the transmission fluid flow between the inlet and the outlet 15, a chimney effect can be used in the channel portion 14. The leaking transmission fluid 5 returns via the transmission fluid discharge 16 into the oil sump 3. In the oil sump 3 the transmission fluid 5 has a maximum temperature of approx. 120° C., which is not exceeded. This oil, which is cooler compared to the transmission temperatures, thus entails a cooling of the control unit in the housing section 10 of the control device 2. This means that an active transmission fluid cooling, in particular an active oil cooling, is realized.

Claims (9)

1.-7. (canceled)
8. A control device for use in the engine compartment or in the transmission of a motor vehicle comprising:
a housing including a housing section for a control unit and a line section for an engine or transmission fluid that is thermally coupled to the housing section for the control unit.
9. A control device according to claim 8, wherein the housing comprises a base plate, at which the control device is mounted, the line section being at least formed section-wise by the base plate.
10. A control device according to claim 8, wherein the line section is formed in two pieces with a base plate and a cover.
11. A control device according to claim 10, wherein the base plate and/or the cover are made of aluminum, casting or plastic material.
12. A cooling arrangement for a control device according to claim 8 comprising:
an engine or transmission fluid reservoir,
an engine or transmission fluid pump for recycling engine or transmission fluid from the engine or transmission fluid reservoir along an engine or transmission fluid circulation path,
an engine or transmission fluid supply being connected to an inlet of the line section of the control device, and
an engine or transmission fluid discharge being connected to an outlet of the line section of the control device.
13. A cooling arrangement according to claim 12, wherein a fluid cooling device is arranged between the inlet of the line section and the engine or transmission fluid reservoir.
14. A cooling arrangement according to claim 12, wherein oil is used as an engine or transmission fluid.
15. A cooling arrangement according to claim 14, wherein the oil is transmission oil.
US12/531,775 2007-03-20 2008-03-14 Control Appliance For Using In The Engine Compartment Or In The Transmission Of A Motor Vehicle And Cooling System For Such A Control Appliance Abandoned US20100101512A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/714,851 US9743563B2 (en) 2007-03-20 2015-05-18 Control appliance for using in the engine compartment or in the transmission of a motor vehicle and cooling system for such a control appliance

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007014276 2007-03-20
DE102007014276.7 2007-03-20
PCT/DE2008/000453 WO2008113332A2 (en) 2007-03-20 2008-03-14 Control appliance for using in the engine compartment or in the transmission of a motor vehicle and cooling system for such a control appliance

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2008/000453 A-371-Of-International WO2008113332A2 (en) 2007-03-20 2008-03-14 Control appliance for using in the engine compartment or in the transmission of a motor vehicle and cooling system for such a control appliance

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/714,851 Continuation-In-Part US9743563B2 (en) 2007-03-20 2015-05-18 Control appliance for using in the engine compartment or in the transmission of a motor vehicle and cooling system for such a control appliance

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US20100101512A1 true US20100101512A1 (en) 2010-04-29

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US12/531,775 Abandoned US20100101512A1 (en) 2007-03-20 2008-03-14 Control Appliance For Using In The Engine Compartment Or In The Transmission Of A Motor Vehicle And Cooling System For Such A Control Appliance

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US (1) US20100101512A1 (en)
EP (1) EP2123141A2 (en)
JP (1) JP5305205B2 (en)
DE (1) DE112008000230A5 (en)
WO (1) WO2008113332A2 (en)

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DE102014207799A1 (en) * 2014-04-25 2015-10-29 Zf Friedrichshafen Ag Transmission with an electrical transmission control device
DE102014111721A1 (en) 2014-08-18 2016-02-18 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Fluidbeaufschlagungsvorrichtung for a transmission for a motor vehicle

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US3327776A (en) * 1965-10-24 1967-06-27 Trane Co Heat exchanger
US3462553A (en) * 1966-06-02 1969-08-19 Columbia Broadcasting Syst Inc Solid-state amplifier,and control panel assembly incorporated therein
US3669812A (en) * 1970-10-16 1972-06-13 Bendix Corp Substrate support module
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US5685361A (en) * 1994-05-11 1997-11-11 Fichtel & Sachs Ag Motor vehicle with a heat exchanger housing system for cooling automotive accessory components and a heat exchanger housing system for cooling automotive accessory components in a motor vehicle
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JP5305205B2 (en) 2013-10-02
WO2008113332A3 (en) 2009-01-29
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JP2010521617A (en) 2010-06-24
WO2008113332A2 (en) 2008-09-25

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