WO2002006651A2 - Appareil de commande pour automobile, muni d'un contacteur de pression - Google Patents

Appareil de commande pour automobile, muni d'un contacteur de pression Download PDF

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Publication number
WO2002006651A2
WO2002006651A2 PCT/DE2001/002505 DE0102505W WO0206651A2 WO 2002006651 A2 WO2002006651 A2 WO 2002006651A2 DE 0102505 W DE0102505 W DE 0102505W WO 0206651 A2 WO0206651 A2 WO 0206651A2
Authority
WO
WIPO (PCT)
Prior art keywords
control device
circuit board
membrane
control unit
electrical
Prior art date
Application number
PCT/DE2001/002505
Other languages
German (de)
English (en)
Other versions
WO2002006651A3 (fr
Inventor
Bernd Jungbauer
Christoph Lincke
Josef Loibl
Georg Mentzel
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2002006651A2 publication Critical patent/WO2002006651A2/fr
Publication of WO2002006651A3 publication Critical patent/WO2002006651A3/fr

Links

Classifications

    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/68—Inputs being a function of gearing status
    • 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
    • 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
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
    • 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
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
    • H05K5/0082—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units specially adapted for transmission control units, e.g. gearbox controllers
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/68—Inputs being a function of gearing status
    • F16H2059/683—Sensing pressure in control systems or in fluid controlled devices, e.g. by pressure sensors

Definitions

  • the invention relates to a control device for installation in a Ge ⁇ gearbox or an engine of a motor vehicle according to the preamble of claim 1.
  • a control device according to the preamble of claim 1 is described in German patent specification DE 197 12 842 Cl.
  • the electrical connection between the control electronics housed in the control unit and the actuators and sensors arranged outside the control unit takes place via electrical conductors which are guided in the housing cover of the control unit.
  • control unit is connected to one or more oil pressure sensors.
  • Oil pressure sensors are currently usually manufactured as individual components and attached to suitable locations in the engine or in the transmission.
  • the sensors are usually designed with an oil-tight sensor housing.
  • the invention has for its object to provide a simple and inexpensive structure for a system consisting of control unit and pressure sensor.
  • the problem underlying the invention is solved by the features of claim 1.
  • Control unit housing is formed, a compact and space-saving overall structure of the system consisting of control unit and pressure sensor is created. A separate housing to accommodate the pressure sensor is not required. Because the pressure sensor is accommodated in a part of the control device, a simple and inexpensive electrical connection between the control electronics and the sensor can also be implemented.
  • the wall of the control unit housing is a base plate of the control unit that carries the control electronics.
  • the pressure sensor can then be arranged in the immediate vicinity of the control electronics.
  • the pressure sensor is preferably contacted via a flexible guide plate.
  • the pressure sensor is implemented by a pressure switch.
  • a simple construction of the pressure switch is created in that a flexible, metallic membrane is contained in the pressure switch, which can be deflected from a rest position as a result of a change in pressure and thereby causes first and second electrical contacts of an electrical circuit to be separated or connected ,
  • the membrane can act as an actuating element of an electrical switch provided in the pressure switch. Another possibility is that the membrane itself is arranged as a current-carrying switching element in the circuit, the separates or connects the electrical contacts according to their position.
  • the diaphragm is in the second case in the loading reaching their peripheral support having a first electrical ⁇ rule contact in electrical connection, and the second e- lectrical contact is arranged within the receiving space in such a ⁇ that he brought at a by external action of pressure ⁇ guided deflection of the membrane comes into electrical contact with it.
  • the circuit is closed by pressure.
  • a membrane used as a switching element is that it opens a circuit when pressure is applied.
  • the two electrical contacts are preferably formed by contact areas which are implemented directly on the flexible printed circuit board.
  • the flexible printed circuit board which can also serve in particular for the electrical contacting of the control electronics and for the distribution of control and detection signals to actuators / sensors arranged outside the control unit housing, thus becomes an integral part of the pressure switch.
  • a structurally advantageous measure is characterized in that the flexible membrane is mechanically supported on a retaining projection of the control unit housing that engages behind the membrane.
  • Figure 1 is a schematic partial sectional view of a control device according to the invention.
  • Fig. 2 is an illustration for explaining the operation of a pressure switch according to the invention;
  • Fig. 3 is an exploded view of the parts of the pressure switch shown in Fig. 1;
  • Fig. 4 is a flexible circuit board for realizing the
  • the electronic circuit can be e.g. be built on a ceramic substrate and is in electrical connection via suitable electrical connection elements with actuators and sensors, which are arranged outside the control unit in the engine or in the transmission.
  • a flexible printed circuit board 4 which extends with a main section 4a within the control unit housing 1, 2, can be used as an electrical connecting element between the electronic circuit and the actuators / sensors, and is led out of the control unit housing through a gap 5 between the housing cover 2 and the base plate 1 and with its free end 4b contacts the actuators / sensors (not shown).
  • the tightness of the circuit board bushing against an engine or transmission oil present outside the control device 3 is ensured by a molded seal 6 which extends along the housing gap 5 and seals it.
  • An oil pressure switch is implemented within the metallic base plate 1 of the control unit housing 1, 2.
  • the base plate 1 has a passage opening 7, which is closed by a closure plate 8 on the side facing the cavity 3.
  • the closure plate 8 and the passage opening 7 delimit a receiving space for the pressure switch.
  • the pressure switch essentially consists of a flexible, metallic switching element 9, which can open or close a circuit between a base contact 10 and a mating contact 11, see also FIG. 2.
  • the switching element 9 is, for example, a membrane with a circular disk-shaped outline realized. In an outer ring area 9a, the membrane 9 is firmly in electrical connection with the base contact 10.
  • the pressure-relieved normal position of the membrane 9 is shown in the left part of FIG. 2.
  • the membrane 9 has an outward curvature. In this position, a central region 9b of the membrane is spaced from the counter contact 11.
  • the switching point of the diaphragm 9 can be set by the choice of material (e.g. steel) and the geometry of the diaphragm (diameter, thickness, deflection in normal position) as well as by its mechanical fixation in the edge area.
  • the construction of the integrated pressure switch is clear from Figures 1 and 3.
  • the ring-shaped base contact 10 and the mating contact 11 are both realized in the form of metallization areas which are connected to a common flexible surface.
  • xiblen circuit board 14 are formed.
  • the flexible printed circuit ⁇ plate 14 may be identical to the flexible circuit board. 4
  • a main portion 14.1 of the flexible printed circuit board 14, he ⁇ extends on the cavity 3 facing the inside of the bottom plate 1 and is for example defined on this alslami ⁇ .
  • a part of this printed circuit board 14, referred to as the base section 14.2 is guided into the passage opening 7 in the region of a ramp-shaped recess 15 in the base plate 1 which laterally adjoins the passage opening 7 and runs there in a plane below the level of the main section 14.1.
  • the base section 14.2 carries the base contact 10.
  • the circuit board 14 also has a tab 14.3 which is folded back onto the circuit board 14 and forms the mating contact 11 in the area of the tab end 14.4.
  • the tab end 14.4 is firmly fixed to the closure plate 8 with the underside of the printed circuit board.
  • the opening area of the base plate 1 has a stepped cross-sectional shape.
  • the opening 7 is narrowed by an integral annular projection 12 projecting into the opening area.
  • the holding projection 12 engages in a circumferential groove of a shaped seal 13 which is inserted into the opening 7.
  • the molded seal 13 has an upper sealing bead 13.1, which serves at least partially to support the base contact 10 and the membrane 9 resting on the base contact 10.
  • a spacer plate 16 provided with a central opening 16.1 acts as a counterpressure element and hold-down device.
  • the spacer plate 16 also serves to fix the position of the tab end 14.4, which is constrained between the top of the spacer plate 16 and the underside of the closure plate 8.
  • the membrane 9 can be directly exposed to the surrounding oil, ie by the pressure of this surrounding oil (engine or Gear oil). Another possibility is that the diaphragm 9 is acted upon indirectly by a power transmission 17. The switch position of the diaphragm 9 ⁇ it then outputs as a function of the pressing force exerted by the power transmission 17 to the membrane. 9
  • the pressure switch can also be used to detect pressure ⁇ forces, which are not generated by the environ- bung oil.
  • the power transmission 17 can be passed through a transmission hydraulic plate 18 and be in contact with a hydraulic fluid at its end 17.1 facing away from the membrane 9.
  • the base plate 1 of the control unit with integrated pressure switch would be attached to the transmission hydraulic plate 18 in such a way that the opening area 7 is sealed off from the ambient oil by means of the molded seal 13 and the diaphragm 9 is pressurized solely by the power transmission 17.
  • the integrated pressure switch can be used to sense the pressure of a hydraulic fluid.
  • the diaphragm 9 does not itself act as a current-carrying switching element of the pressure switch, but merely takes over the actuating function for a separate electrical switch contained in the pressure switch (e.g. microswitch, membrane switch or the like).
  • Fig. 4 shows the flexible circuit board 14 in a perspective top view before it is installed in the pressure switch.
  • the base section 14.2 which is already provided with the metallization for the ring-shaped base contact 10, is movable relative to the main section 14.1 of the printed circuit board 14 as a result of a partially circular cutout 14.5.
  • the circuit board tab 14.3 which, when the circuit board is installed, corresponds to the main section 14.1 of the circuit board 14 in accordance with the arrow K is folded back, is shown in Fig. 4 as a contour projection of the circuit board 14.
  • Another way be ⁇ is the fact that the printed circuit board tab 14.3 comparable to the epoch te by a cutout in the printed circuit boards is realized 14.2 fourteenth
  • the integrated pressure switch does not have to be arranged in the base plate 1 of the control unit housing, but also in another wall of the control unit housing, e.g. can be realized in the housing cover 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)

Abstract

L'invention concerne un appareil de commande pour automobile, à monter dans une transmission ou dans un moteur, qui présente un boîtier (1,2) étanche à l'huile, dans lequel est monté un dispositif électronique de commande. Il est prévu dans une paroi (1) du boîtier de l'appareil de commande (1,2), un espace de réception (7) pour loger un capteur de pression électrique, notamment un contacteur de pression (9,10,11).
PCT/DE2001/002505 2000-07-18 2001-07-06 Appareil de commande pour automobile, muni d'un contacteur de pression WO2002006651A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10034876A DE10034876C1 (de) 2000-07-18 2000-07-18 Kraftfahrzeug-Steuergerät mit integriertem Druckschalter
DE10034876.9 2000-07-18

Publications (2)

Publication Number Publication Date
WO2002006651A2 true WO2002006651A2 (fr) 2002-01-24
WO2002006651A3 WO2002006651A3 (fr) 2002-12-05

Family

ID=7649305

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/002505 WO2002006651A2 (fr) 2000-07-18 2001-07-06 Appareil de commande pour automobile, muni d'un contacteur de pression

Country Status (2)

Country Link
DE (1) DE10034876C1 (fr)
WO (1) WO2002006651A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1533189A2 (fr) * 2003-11-24 2005-05-25 Siemens AG Österreich Dispositif de commande pour automobile
US7320854B2 (en) 2003-06-25 2008-01-22 Jsr Corporation Radiation sensitive refractive index changing composition, pattern forming method and optical material
DE102007001855A1 (de) 2007-01-12 2008-07-17 Siemens Ag Gehäuseanbindung für Drucksensoren
DE102007042449A1 (de) 2007-09-06 2009-03-12 Continental Automotive Gmbh Integriertes Sensormodul
WO2009035955A1 (fr) * 2007-09-12 2009-03-19 3M Innovative Properties Company Procédés de détection d'enterobacter sakazakii

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010029868A1 (de) * 2010-06-09 2011-12-15 Zf Friedrichshafen Ag Getriebesteuerung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4647739A (en) * 1985-01-11 1987-03-03 Jaeger Two-threshold pressure switch
DE29714223U1 (de) * 1997-08-08 1997-11-20 Leopold Kostal GmbH & Co KG, 58507 Lüdenscheid Getriebesteuerung für ein Kraftfahrzeug
DE19712842C1 (de) * 1997-03-26 1998-08-13 Siemens Ag Steuergerät für ein Kraftfahrzeug
WO2000011376A2 (fr) * 1998-08-24 2000-03-02 Siemens Aktiengesellschaft Dispositif de commande pour vehicule

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4447513C2 (de) * 1994-07-28 2001-12-06 Siemens Ag Wasserdichtes Gehäuse zum Schutz von Elektronikschaltkreisen
DE19752921A1 (de) * 1997-11-28 1999-06-02 Bosch Gmbh Robert Ultraschallsensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4647739A (en) * 1985-01-11 1987-03-03 Jaeger Two-threshold pressure switch
DE19712842C1 (de) * 1997-03-26 1998-08-13 Siemens Ag Steuergerät für ein Kraftfahrzeug
DE29714223U1 (de) * 1997-08-08 1997-11-20 Leopold Kostal GmbH & Co KG, 58507 Lüdenscheid Getriebesteuerung für ein Kraftfahrzeug
WO2000011376A2 (fr) * 1998-08-24 2000-03-02 Siemens Aktiengesellschaft Dispositif de commande pour vehicule

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7320854B2 (en) 2003-06-25 2008-01-22 Jsr Corporation Radiation sensitive refractive index changing composition, pattern forming method and optical material
EP1533189A2 (fr) * 2003-11-24 2005-05-25 Siemens AG Österreich Dispositif de commande pour automobile
EP1533189A3 (fr) * 2003-11-24 2007-02-28 Siemens AG Österreich Dispositif de commande pour automobile
DE102007001855A1 (de) 2007-01-12 2008-07-17 Siemens Ag Gehäuseanbindung für Drucksensoren
DE102007042449A1 (de) 2007-09-06 2009-03-12 Continental Automotive Gmbh Integriertes Sensormodul
DE102007042449B4 (de) 2007-09-06 2021-11-18 Vitesco Technologies GmbH Integriertes Sensormodul für Mechatroniken, Verfahren zur Herstellung des integrierten Sensormoduls sowie Verwendung des integrierten Sensormoduls
WO2009035955A1 (fr) * 2007-09-12 2009-03-19 3M Innovative Properties Company Procédés de détection d'enterobacter sakazakii

Also Published As

Publication number Publication date
WO2002006651A3 (fr) 2002-12-05
DE10034876C1 (de) 2002-02-28

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