EP1281848B1 - Corps pour soupape à papillon - Google Patents

Corps pour soupape à papillon Download PDF

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Publication number
EP1281848B1
EP1281848B1 EP02012837A EP02012837A EP1281848B1 EP 1281848 B1 EP1281848 B1 EP 1281848B1 EP 02012837 A EP02012837 A EP 02012837A EP 02012837 A EP02012837 A EP 02012837A EP 1281848 B1 EP1281848 B1 EP 1281848B1
Authority
EP
European Patent Office
Prior art keywords
throttle
housing
actuator
shaft
throttle body
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.)
Expired - Lifetime
Application number
EP02012837A
Other languages
German (de)
English (en)
Other versions
EP1281848A2 (fr
EP1281848A3 (fr
Inventor
Rolf Anschicks
Eugen Bernarding
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 AG, Siemens Corp filed Critical Siemens AG
Publication of EP1281848A2 publication Critical patent/EP1281848A2/fr
Publication of EP1281848A3 publication Critical patent/EP1281848A3/fr
Application granted granted Critical
Publication of EP1281848B1 publication Critical patent/EP1281848B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F02D11/106—Detection of demand or actuation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0284—Throttle control device with means for signalling a certain throttle opening, e.g. by a steplike increase of throttle closing spring force
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium

Definitions

  • the invention relates to a throttle body with a throttle body with a housing cover and a housing body comprehensive housing and a continuous throttle opening for a valve disposed on a throttle shaft throttle, wherein the throttle shaft by means disposed in the housing electronics in dependence predefinable parameters of a likewise in the electric actuator arranged to the housing is drivable, the position of the throttle shaft via a housing arranged in the position detecting means is detected, the electronics for the electric actuator and a second electronics for outside of the housing arranged electrical devices are arranged in the housing cover and in the housing cover the first Electronics for the electric actuator and the second electronics are arranged together on a circuit board
  • Throttle body For controlling the amount of fresh gas supplied to the internal combustion engine of a motor vehicle usually throttle body are used.
  • Throttle body includes a housing with a continuous throttle opening and arranged in the throttle opening throttle body.
  • the throttle body is usually a throttle valve which is pivotally mounted on a throttle shaft mounted in the housing.
  • the arranged on the throttle shaft throttle takes a certain position in the throttle opening for the passage of a certain amount of fresh gas.
  • the throttle valve shaft, on which the throttle valve is arranged can be controlled mechanically or electronically.
  • the throttle valve of a throttle body can in a partial area, for example, the idle area, by an actuator movable and in the remaining area by means of a be movable to the gas pedal of the motor vehicle coupled wire rope.
  • the throttle valve may also be movable by an actuator in its entire adjustment range.
  • the power requirement is converted into an electrical signal in these so-called e-gas or drive-by-wire systems.
  • the electrical signal is supplied to a control unit, which in turn generates from the electrical signal, a drive signal for the actuator.
  • a position detection device For position control of the throttle shaft, a position detection device is usually provided. There are position detecting devices that detect the current position of the throttle shaft by contact with the throttle shaft. Alternatively, there are position detection devices that detect the respective current position of the throttle shaft without contact. Non-contact position detection devices usually have a particularly high space requirement, since they are to be arranged in alignment with the throttle shaft, whereby the axial length of the throttle body normally increases significantly.
  • a throttle body with a cooperating with the actuator shaft Hall sensor is known from DE 197 19 991 A1.
  • throttle body in which the control unit for the actuator is integrated in the housing of the throttle body.
  • the control unit can be integrated in an arranged in the housing electronics.
  • the electronics are provided for further functions of the throttle body, for example, for controlling a position control of the throttle shaft and the detection and storage of data of the throttle body.
  • a throttle body as described above is known from EP 0 596 392 A1.
  • a structure with an actuator seated directly on the throttle valve shaft and a position sensor located on the opposite side of the throttle valve opening, which is designed as a potentiometer, requires a lot of space and is cumbersome to assemble.
  • the invention is therefore based on the object to provide a throttle body of the type mentioned above, the housing has a particularly small footprint and also has a non-contact position detection device for the throttle shaft and continues to be easy to manufacture.
  • the electric actuator is an electrically commutated motor.
  • An electrically commutated motor is more wear-resistant than an electric motor with carbon brushes and also very quiet. Due to the absence of carbon brush friction, the electrically commutated motor requires less power, comparatively low power dissipation, and develops less heat during operation than an electric motor with carbon brushes.
  • an electrically commutated motor has shorter positioning times and a better response than an electric motor with carbon brushes.
  • an electrically commutated motor is easier to assemble because the complex assembly of the brush carrier plate is eliminated.
  • the electrical devices are arranged in an internal combustion engine of a motor vehicle. Due to the spatial connection of the electronics of the actuator with the electronics of the outside of the housing arranged electrical equipment, the engine has a central electronics, whereby the number of elements of the internal combustion engine is particularly low. In addition, interference from signal transmissions from the first to the second electronics are almost impossible.
  • the electrical devices arranged outside the housing are an ignition device and / or an injection device and / or an oil level measuring device and / or a Heilmassenregulier réelle and / or a power supply device.
  • the throttle shaft is drivable by the electric actuator via a reduction gear connected to the actuator shaft, wherein the position detecting means are disposed at the one end of the actuator shaft and the reduction gear at the other end of the actuator shaft. Due to the spatial separation of transmission and position detection device is particularly reliable ensures that no abrasion from the transmission enters the position detection device.
  • the position detection device By arranging a non-contact position detection device on the actuator shaft of an electric actuator for the throttle shaft of the throttle body, the position detection device is to be arranged in a particularly small footprint in the housing of the throttle body. In this case, the respective current position of the throttle valve shaft is detected indirectly via the drive shaft of the actuator.
  • the throttle body 10 is used to supply a consumer, not shown, for example, an injection device of a motor vehicle, also not shown, an air or a fuel-air mixture, wherein by means of the throttle body 10, the fresh gas supplied to the consumer is controllable.
  • the throttle body 10 has a housing 12 which comprises a housing body 14 and a first housing cover 16 and a second housing cover 17.
  • the housing 12 is predominantly made of aluminum 18. Alternatively, however, the housing 12 may also be made of plastic.
  • a continuous throttle opening 20 is arranged, via which the consumer, not shown, air or a fuel-air mixture can be supplied.
  • a throttle valve 26 is arranged on a throttle valve shaft 22 by means of fastening means 24.
  • the throttle shaft 22, the fastening means 24 and the throttle valve 26 are shown in Figure 1 in an explosive representation.
  • a rotation of the throttle shaft 22 simultaneously causes a pivoting of the arranged on the throttle shaft 22 throttle valve 26.
  • a pivoting of the throttle valve 26 causes an enlargement or reduction of the opening of the throttle opening 20.
  • the amount of passing through the throttle opening 20 flow medium is adjustable.
  • the throttle shaft 22 may be connected to a pulley, not shown, which in turn is connected via a Bowden cable with a setting device for a power request.
  • the adjusting device can be embodied here as an accelerator pedal of a motor vehicle, so that actuation of this adjusting device by the driver of the motor vehicle can bring the throttle flap 26 from a position of minimum opening, in particular a closed position, into a position of maximum opening, in particular an open position. to thereby control the power output of the motor vehicle.
  • the throttle shaft 22 of the throttle body 10 shown in Figure 1 is in contrast either in a portion of an actuator and otherwise adjustable via the accelerator pedal, or the throttle valve 26 is adjustable over the entire adjustment of an actuator.
  • the mechanical power control such as depressing an accelerator pedal, converted into an electrical signal. This signal is in turn supplied to a control unit which generates a drive signal for the actuator.
  • a control unit which generates a drive signal for the actuator.
  • the throttle body 10 has an actuator housing 30.
  • the actuator housing 30 is formed integrally with the housing 12 of the throttle body 10.
  • the housing 12 of the throttle body 10 and the actuator housing 30 may alternatively be designed in two pieces.
  • the actuator housing 30 designed as a commutated electric motor electric actuator 32 is arranged.
  • the trained as a commutated electric motor electric actuator 32 is connected via a reduction gear 34 with the throttle valve shaft 22.
  • the throttle valve shaft 22 is thus pivotable by the actuator 32 designed as a commutated electric motor.
  • a return spring 36 is associated with the reduction gear 34.
  • the return spring 36 pivots in a failure of the actuator 32, the throttle shaft to a position corresponding to an idle position of the throttle valve 26.
  • the transmission-side region of the housing 12 of the throttle body 10 is closed by the first housing cover 16, which is made of plastic, but may alternatively be made of metal.
  • the gearbox remote from the region of the housing 12 of the throttle body 10 is closed by the second housing cover 17.
  • the second housing cover 17 is also made of plastic 38. Alternatively, you can However, the second housing cover 17 may be made of metal, in particular aluminum.
  • the second housing cover 17 is made by injection molding of plastic 38. In this case, electrical connection means have been inserted into the intended for the second housing cover 17 injection mold, which have been at least partially embedded in the plastic 38 during the injection molding process. About the not shown in the drawing electrical connection means of the throttle body 10 is connected to electrical equipment 40, which are arranged outside of the throttle body 10.
  • the electrical devices which are schematically indicated in Figure 1, according to this embodiment, an ignition device 42, an injection device 44, an oil level gauge 46 and a Heilmassenreguliertown 48.
  • the electrical equipment 40 are electrically connected via electrical lines 49 to the electrical connection means of the housing cover 17 of the Throttle body connected.
  • the electrical equipment 40 are arranged as well as the throttle body 10 in the internal combustion engine of the motor vehicle, wherein in the drawing, neither the engine nor the motor vehicle are shown in more detail.
  • the electrical connection means of the second housing cover 17 are connected via a circuit board 50 with the electric actuator 32.
  • the board 50 has bores 52, via which the board 50 is to be arranged by means of fastening screws 54 designed as metallic screws on the second housing cover 17 of the throttle body 10.
  • a first electronics for the electric actuator 32 and a second electronics 58 for the outside of the housing 12 arranged electrical equipment 40 is arranged. Both the first electronics 56 and the second electronics 58 are connected via the in the second housing cover 17 at least partially arranged electrical connection means with the outside of the throttle body 10 arranged electrical devices 40.
  • the first electronics 56 and the second electronics 58 are mounted on the board 50 in an integrated manner. Therefore, it can not be decided from the outside which area of the board 50 belongs to the first electronics 56 and which area of the board belongs to the second electronics 58. Alternatively, however, the board 50 may also have clearly visible from the outside areas, which for the first electronics 56 and the second Electronics 58 are provided.
  • the second electronics 58 for the devices 40 located outside the housing 12 of the throttle body 10 include a control unit, a data acquisition unit and a data storage unit.
  • the throttle body 10 has a non-contact position detection device 70.
  • the non-contact position detection device 70 comprises a first Hall sensor 72 and a second Hall sensor 74 and a Hall magnet 76.
  • the Hall magnet 76 has cake piecemold aging N magnetizations and S magnetizations.
  • the Hall magnet 76 is disposed on the end of the actuator shaft 28, which faces away from the reduction gear 34. The Hall magnet 76 thus rotates when the actuator shaft 28 of the electric actuator 32 rotates. With the reduction ratio of the reduction gear 34 is therefore on the actuator shaft 28 of the actuator 32 by means of the Hall magnet 76, the respective current position of the throttle shaft 22 and thus the throttle valve 26 accurately determinable.
  • the rotational movement of the Hall magnet 76 can be detected via the first Hall sensor 72 and the second Hall sensor 74.
  • the first Hall sensor 72 and the second Hall sensor 74 are arranged radially along the circumference of the Hall magnet 76 relative to this.
  • Two Hall sensors 72 and 74 are used to achieve a better resolution in the detection of the rotational movement of the Hall magnet 76 than would be the case with only one Hall sensor 72 and 74, respectively.
  • voltages are generated during a rotational movement of the Hall magnet 76. These voltages are a measure of the rotational movement of the Hall magnet 76.
  • electrical contacts 78 these voltages of a circuit board 79 can be fed.
  • the printed circuit board 79 in turn can be connected via electrical contacts 80 to the circuit board 50, on which the first electronics 56 and the second electronics 58 are arranged.
  • FIG. 2 shows how the electrical contacts 80 are contacted with the circuit board 50.
  • the electrical connection means 80 Before installing the board 50 in the second housing cover 17 of the throttle body 10, the actuator 32 is connected to the position detection device 70 and electrically connected to the circuit board 50. As a result, the installation effort required for the throttle body 10 has a particularly low degree.
  • the position detection device 70 is shown in detail in FIG. It can clearly be seen how the Hall sensor 72 is arranged radially on the outer circumference of the Hall magnet 76.
  • the electric actuator 32 is driven by the first electronics 56 for adjusting the throttle shaft 22.
  • the throttle valve shaft 22 is then adjusted in dependence on the control parameters.
  • the rotational movement of the throttle valve shaft 22 is detected indirectly in non-contact manner by means of the position detection device 70.
  • the arranged on the actuator shaft 28 Hall magnet 76 rotates.
  • the rotational movement of the Hall magnet 76 generates in the first Hall sensor 72 and the second Hall sensor 74, a voltage. These two voltages are supplied via the electrical contacts 78 of the printed circuit board 79.
  • the capacitive circuit board 79 outputs signals to the first electronics 56.
  • the signals of the first Hall sensor 72 and the second Hall sensor 74 are assigned values corresponding to a specific position of the throttle shaft 22. In order to determine these values, for example, a calibration curve stored in the first electronic unit is assigned the current signal of the respective Hall sensor 72 or 74, in order then to determine the value corresponding to the current position of the throttle valve shaft 22.
  • the housing of the throttle body 10 has a particularly small footprint, since the non-contact position sensing device 70 of the throttle shaft 22 not directly, but indirectly via the actuator shaft 28 of the actuator 32 detects this position of the throttle shaft 22.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Claims (5)

  1. Tubulure (10) à papillon de régulation des gaz ayant un boîtier (12) comprenant un couvercle (17) de boîtier et un corps (14) de boîtier et une ouverture traversante de régulation (20) destinée à un papillon de régulation des gaz (26) monté sur un arbre (22) de papillon de régulation des gaz, où l'arbre (22) du papillon de régulation des gaz peut être commandé, en fonction de paramètres pouvant être fixés au préalable, au moyen d'un premier système électronique (56) disposé dans le boîtier (12), par un mécanisme de commande électrique (32) disposé également dans le boîtier (12), où la position de l'arbre (22) du papillon de régulation des gaz peut être détectée par un dispositif (70) de détermination de la position disposé dans le boîtier (12), où le premier système électronique (56) pour le mécanisme électrique de commande (32) et un deuxième système électronique (58) pour des appareils électriques (40) disposés à l'extérieur du boîtier (12) sont disposés dans le couvercle (17) du boîtier et où, dans le couvercle (17) du boîtier, le premier système électronique pour le mécanisme électrique de commande (32) et le deuxième système électronique (58) sont disposés en commun sur une platine (50), caractérisée par le fait que le papillon de régulation des gaz peut être commandé, par l'intermédiaire d'un démultiplicateur (34), par le mécanisme de commande (32), qui comporte un arbre (28), que le dispositif (70) de détermination de la position permettant de déterminer la position de l'arbre (22) du papillon de régulation des gaz comprend un aimant de Hall (76) disposé sur l'arbre (28) du mécanisme de commande, ainsi qu'un détecteur de Hall (72, 74) disposé directement près de l'aimant de Hall (76) et que le couvercle (16, 17) du boîtier se compose principalement de matière plastique (38), des moyens électriques de raccordement (80) étant intégrés dans le couvercle (16, 17) du boîtier, par l'intermédiaire desquels il est possible de raccorder le premier système électronique (56) du mécanisme électrique de commande (32) et le deuxième système électronique (58) des appareils électriques (40) disposés à l'extérieur du boîtier (12) au moins aux appareils électriques (40) disposés à l'extérieur du boîtier (12).
  2. Tubulure (10) à papillon de régulation des gaz selon la revendication 1 caractérisée par le fait que le mécanisme électrique de commande (32) est un moteur commuté électriquement.
  3. Tubulure (10) à papillon de régulation des gaz selon la revendication 1 ou 2 caractérisée par le fait que les appareils électriques (40) sont disposés dans un moteur à combustion interne d'un véhicule automobile.
  4. Tubulure (10) à papillon de régulation des gaz selon l'une des revendications 1 à 3 caractérisée par le fait que les appareils électriques (40) disposés à l'extérieur du boîtier (12) sont un appareil d'allumage (42) et / ou un appareil d'injection (44) et / ou un appareil de mesure du niveau d'huile (46) et / ou un appareil de régulation des masses d'air (48).
  5. Tubulure (10) à papillon de régulation des gaz selon l'une des revendications 1 à 4 caractérisée par le fait que le dispositif (70) de détection de la position est disposé à l'une des extrémités de l'arbre (28) du mécanisme de commande et le démultiplicateur (34) à l'autre extrémité de l'arbre (28) du mécanisme de commande.
EP02012837A 2001-08-02 2002-06-10 Corps pour soupape à papillon Expired - Lifetime EP1281848B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10137454A DE10137454A1 (de) 2001-08-02 2001-08-02 Drosselklappenstutzen
DE10137454 2001-08-02

Publications (3)

Publication Number Publication Date
EP1281848A2 EP1281848A2 (fr) 2003-02-05
EP1281848A3 EP1281848A3 (fr) 2004-02-25
EP1281848B1 true EP1281848B1 (fr) 2006-02-22

Family

ID=7693836

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02012837A Expired - Lifetime EP1281848B1 (fr) 2001-08-02 2002-06-10 Corps pour soupape à papillon

Country Status (3)

Country Link
US (1) US6729299B2 (fr)
EP (1) EP1281848B1 (fr)
DE (2) DE10137454A1 (fr)

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US6443135B1 (en) * 1999-10-05 2002-09-03 Pierburg Aktiengesellschaft Assembly of a valve unit, a combustion air intake and an exhaust gas recirculation unit for an internal combustion engine
JP2001123855A (ja) * 1999-10-21 2001-05-08 Unisia Jecs Corp スロットルバルブ装置
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JP3893907B2 (ja) * 2001-06-14 2007-03-14 株式会社デンソー 内燃機関用吸気制御装置

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EP1281848A2 (fr) 2003-02-05
DE10137454A1 (de) 2003-02-20
US6729299B2 (en) 2004-05-04
EP1281848A3 (fr) 2004-02-25
DE50205853D1 (de) 2006-04-27
US20030024505A1 (en) 2003-02-06

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