WO1991010050A1 - Dispositif d'entrainement de surcompresseur a commande mecanique pour moteurs a combustion interne - Google Patents

Dispositif d'entrainement de surcompresseur a commande mecanique pour moteurs a combustion interne Download PDF

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Publication number
WO1991010050A1
WO1991010050A1 PCT/EP1990/002235 EP9002235W WO9110050A1 WO 1991010050 A1 WO1991010050 A1 WO 1991010050A1 EP 9002235 W EP9002235 W EP 9002235W WO 9110050 A1 WO9110050 A1 WO 9110050A1
Authority
WO
WIPO (PCT)
Prior art keywords
control element
separating clutch
drive device
speed
throttle valve
Prior art date
Application number
PCT/EP1990/002235
Other languages
German (de)
English (en)
Inventor
Reimund Raue
Original Assignee
Zahnradfabrik Friedrichshafen Ag
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 Zahnradfabrik Friedrichshafen Ag filed Critical Zahnradfabrik Friedrichshafen Ag
Publication of WO1991010050A1 publication Critical patent/WO1991010050A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/02—Drives of pumps; Varying pump drive gear ratio
    • F02B39/12—Drives characterised by use of couplings or clutches therein

Definitions

  • the invention relates to a drive device, in particular for motor vehicles, with a
  • Combustion engine and a compressor which can be driven via a speed variator and a separating clutch, which is switched on when a control element is reached by actuating the separating clutch in the closing direction and thus switched to charging mode.
  • the present invention has for its object to improve a drive device according to the generic term so that in particular a deceleration-free acceleration of a motor vehicle is possible.
  • the invention proposes the changeover position, in which the compressor is switched on by actuating the separating clutch in the closing direction, from the speed or the speed of the change in position per unit time of the control element, for. B. an accelerator to make dependent.
  • the changeover position is thus determined by the speed or the acceleration of the control element.
  • the specified conditions include a specific opening angle of the throttle valve and a specific speed or acceleration value of the control element. If these values are below the specified values, the internal combustion engine is not switched over to charging operation or it is switched back to intake operation.
  • the opening angle of the throttle valve can be, for example, approximately 50 percent, while at the same time there is no actuation of the control element or actuation of the control element with only a relatively slight acceleration.
  • the separating clutch is not actuated in the closing direction when a predetermined opening angle of the throttle valve is exceeded.
  • This range extends up to the maximum opening angle of the throttle valve.
  • a closed disconnect clutch is also opened within this area.
  • the predetermined opening angle of the throttle valve can be approximately 80 percent, so that no jjade operation is possible in the range up to the maximum opening angle.
  • an electronic control unit is used to actuate the throttle valve and the separating clutch, it is further proposed according to the invention to provide a programmable memory for specifying parameters such as the opening angle of the throttle valve and at least one acceleration value of the control element.
  • An intake line 1 leads to a mixture distributor 2 of a four-cylinder internal combustion engine 3.
  • the internal combustion engine 3 is an Otto engine. In principle, however, the arrangement according to the invention can also be implemented in a diesel engine.
  • An exhaust gas collector 4 is assigned to the internal combustion engine 3.
  • An output shaft 5 is in driving connection with a gear, not shown.
  • a drive shaft 6 of a speed variator 7 is located on the opposite side of the internal combustion engine.
  • a primary pulley 8 of the speed variator 7 drives a secondary pulley 10 via a belt 9.
  • Separating clutch 11 is a rotationally fixed connection between the secondary disc 10 and an input shaft 12 of a high-speed planetary gear 13.
  • a sun gear shaft 14 serves to drive a centrifugal compressor 15, which lies within the suction line 1.
  • the secondary disc 10 rotates faster than the primary disc 8, namely in a ratio of 2: 1. At maximum speed of the
  • the gear ratio usually reaches the value of 1: 0.8. Since the output speed of the secondary disk 10 is insufficient for the operation of the centrifugal compressor 15, the high-speed planetary gear has a gear ratio of 1:15.
  • a carburetor 16 with a suction opening 17.
  • a throttle valve 18 can be actuated from its closed position up to a maximum opening angle with the aid of a servomotor 19.
  • An air filter 20 forms the input of the intake line 1.
  • the servomotor 19 for actuating the throttle valve 18 is connected to an electronic control unit 22 via signal lines 21.
  • Another signal line 23 leads from a control element 24 - in the exemplary embodiment shown, this is an accelerator pedal - to the electronic control unit 22.
  • the control element 24 is connected to an acceleration sensor 25, with. which detects the speed of the change in position per unit time of the control element 24 and can be communicated to the electronic control unit 22 via the signal line 23.
  • a signal line 26 leads from the control unit 22 to the electromagnetic clutch 11.
  • the separating clutch 11 is actuated to drive the centrifugal compressor 15 when one is reached
  • Changeover position U of the control element 24 When the changeover position is reached, the system switches from suction to charging mode.
  • An essential feature of the arrangement according to the invention can be seen in the fact that no defined path of the control element 24 has to be covered until the changeover position is reached.
  • the changeover position U is rather dependent on the speed of the change in position per unit time of the control element 24.
  • This acceleration value is from Accelerometer 25 detects and communicated to the electronic control unit 22. If the control element 24 is actuated accelerated, the separating clutch 11 is closed practically without delay, so that the centrifugal compressor is switched on immediately. An acceleration process is thus practically possible without delay.
  • the position of the control member 24 is indicated, which corresponds to a small to medium opening angle of the throttle valve 18. This value can be, for example, 50 percent of the maximum opening angle.
  • the separating clutch 11 is not closed or the closed separating clutch 11 is opened when the opening angle of the throttle valve 18 and the acceleration of the control element 24 are below predetermined values in the sense of accelerating.
  • the electronic control unit 22 is equipped with a programmable memory. Here, certain opening angles of the throttle valve 18 can be specified.
  • the memory contains at least one speed of the change in position per unit time (acceleration value) of the control element 24.
  • Another solution according to the invention provides for the speed of the change in position, ie the distance covered per unit of time of the control element 24, to be recorded. Instead of an acceleration sensor 25, a measuring device for the speed of the control element must then be provided.
  • a diesel engine can be used instead of an OTTO engine.
  • the control member 24 is then an accelerator pedal, and the throttle valve 18 is replaced by the device for controlling the delivery rate of the injection pump.
  • the compressor is not tied to any particular design. Instead of a centrifugal compressor, a Roots blower or a G-charger can be used, for example. Switching off the compressor in the course of switching from charging to suction operation does not occur suddenly in practical operation. The transition has hysteresis characteristics.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)

Abstract

Un dispositif d'entraînement peut s'utiliser pour mettre un moteur à combustion interne (3) en mode suralimentation. Un surcompresseur centrifuge (15) peut être branché au moyen d'un embrayage séparateur (11) lorsqu'un organe de réglage (24) atteint une position de commutation (U) dépendante de la vitesse de changement de la position de l'organe de réglage (24) par unité de temps. Le surcompresseur centrifuge (15) peut ainsi être branché sans délais pendant des accélérations.
PCT/EP1990/002235 1989-12-23 1990-12-19 Dispositif d'entrainement de surcompresseur a commande mecanique pour moteurs a combustion interne WO1991010050A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3942820 1989-12-23
DEP3942820.6 1989-12-23

Publications (1)

Publication Number Publication Date
WO1991010050A1 true WO1991010050A1 (fr) 1991-07-11

Family

ID=6396345

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/002235 WO1991010050A1 (fr) 1989-12-23 1990-12-19 Dispositif d'entrainement de surcompresseur a commande mecanique pour moteurs a combustion interne

Country Status (1)

Country Link
WO (1) WO1991010050A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6058916A (en) * 1995-10-02 2000-05-09 Komatsu Ltd. Apparatus for controlling a mechanical supercharger for a diesel engine
US6474318B1 (en) * 2001-06-27 2002-11-05 Accessible Technologies, Inc. Air induction system having inlet valve

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3404432A1 (de) * 1983-03-04 1984-10-04 Aisin Seiki K.K., Kariya, Aichi Einrichtung zum steuern eines vorverdichters
EP0198312A2 (fr) * 1985-04-03 1986-10-22 Karl-Nikolaus Dr. Regar Moteur à combustion.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3404432A1 (de) * 1983-03-04 1984-10-04 Aisin Seiki K.K., Kariya, Aichi Einrichtung zum steuern eines vorverdichters
EP0198312A2 (fr) * 1985-04-03 1986-10-22 Karl-Nikolaus Dr. Regar Moteur à combustion.

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Vol. 10, No. 174, (M-490)[2230], 19 June 1986; & JP,A,61 023 828, (TOYOTA JIDOSHA K.K.), 01 February 1986. *
PATENT ABSTRACTS OF JAPAN, Vol. 12, No. 296, (M-731), 12 August 1988; & JP,A,63 075 317, (NISSAN MOTOR CO. LTD.), 5 April 1988. *
PATENT ABSTRACTS OF JAPAN, Vol. 9, No. 213, (M-408)[1936], 30 August 1985; & JP,A,60 073 012, (TOYOTA JIDOSHA K.K.), 25 April 1985. *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6058916A (en) * 1995-10-02 2000-05-09 Komatsu Ltd. Apparatus for controlling a mechanical supercharger for a diesel engine
US6474318B1 (en) * 2001-06-27 2002-11-05 Accessible Technologies, Inc. Air induction system having inlet valve

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