WO1989001093A1 - Dispositif de controle du moteur a combustion interne d'un vehicule motorise comprenant un systeme de detection - Google Patents

Dispositif de controle du moteur a combustion interne d'un vehicule motorise comprenant un systeme de detection Download PDF

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Publication number
WO1989001093A1
WO1989001093A1 PCT/DE1988/000422 DE8800422W WO8901093A1 WO 1989001093 A1 WO1989001093 A1 WO 1989001093A1 DE 8800422 W DE8800422 W DE 8800422W WO 8901093 A1 WO8901093 A1 WO 8901093A1
Authority
WO
WIPO (PCT)
Prior art keywords
receiving element
combustion engine
motor vehicle
power supply
internal combustion
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.)
Ceased
Application number
PCT/DE1988/000422
Other languages
German (de)
English (en)
Inventor
Heinz-Günther JOOS
Richard Schleupen
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 WO1989001093A1 publication Critical patent/WO1989001093A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • F02D41/28—Interface circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/486—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by photo-electric detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/488—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable reluctance detectors

Definitions

  • the invention is based on a device for controlling the internal combustion engine of a motor vehicle with a sensor system according to the preamble of claim 1.
  • physical quantities are transmitted to a control device with the aid of optical fibers.
  • Occurring electromagnetic interference signals which act on the sensor or are caused by its power supply unit, are, however, also transmitted and can thereby falsify the control.
  • the device according to the invention with the characterizing features of claim 1 has the advantage that the influence of electromagnetic interference signals is largely eliminated.
  • the voltage of the receiving element can be tapped in a particularly simple manner and fed to a power supply unit for the electro-optical converters. No additional external power source is required.
  • the power supply for the sensors and the vehicle electrical system are completely electrically isolated from each other.
  • the Power supply lines are relatively short, so that hardly any electromagnetic interference from interference signals from the vehicle electrical system or other sources of interference is possible.
  • the converters for the temperature sensor and the throttle valve potentiometer can also be supplied via the voltage source or via their own voltage source.
  • FIG. 1 shows a schematic illustration of a device for controlling an ignition system of motor vehicles
  • FIGS. 2a-d show training with an incremental encoder and corresponding diagrams
  • figures 3a-e show training with a segment generator and corresponding diagrams .
  • 10 denotes an encoder disk, which rotates with the crankshaft or the camshaft of an internal combustion engine.
  • teeth 11 are formed on the circumference of the encoder disk 10, which are operatively connected to a spatially fixed receiving element 12.
  • the receiving element 12 consists of an iron core 13 and at least one coil 14. The type of interaction of the teeth 11 and the receiving element 12 can be very different. It is crucial that an electrical voltage is generated in the coil 14. Electrical lines 15 lead from the coil 14 to an electro-optical converter 16, which converts electrical measurement signal generated by the receiving element 12 into an operational signal. This optical signal is transmitted with the aid of a fiber-optic light guide 17 to an optoelectric converter 18, which is connected to a control unit 19 for the internal combustion engine.
  • Electrical lines 22 branch from lines 15 to a power supply unit 23 for converter 16.
  • a second coil (not shown in FIG. 1) around the iron core 13 of the receiving element 12, which then serves as a voltage source for the power supply unit 23 .
  • Additional electro-optical converters 24, 25 for the measurement signals of additional sensors can also be supplied by the power supply unit 23.
  • a temperature sensor 27 to determine the temperature of the intake air for mixture preparation.
  • the electrical measurement signals of the temperature sensor 27 are converted into an optical signal in the electro-optical converter 24 and fed to the converter 18 and the control unit 19 via a fiber-optic light guide 17.
  • the position of the throttle valve and thus the amount of air necessary for the combustion of the fuel can also be measured or controlled via a throttle valve potentiometer 28.
  • the electrical signal determined by the potentiometer 28 is converted into an optical signal in the converter 25 and transmitted to the converter 18 and the control unit 19 via a fiber-optic light guide 17.
  • the measurement signals transmitted in this way are evaluated in the control device 19, and the internal combustion engine is thereby regulated or controlled.
  • FIG. 2a shows an evaluation circuit 35 for an incremental encoder 36 for obtaining the electrical measurement signal and for converting it into an optical signal.
  • the same parts are included again labeled with the same numbers.
  • the receiving element 12a is designed as an induction transmitter and, in addition to the coil 14, has a permanent magnet 37 for signal amplification.
  • the evaluation circuit 35 has a Zener diode 38 and a light-emitting diode 39, which are connected in parallel to one another with opposite polarities.
  • the Zener diode 38 together with two resistors 40 connected in series, protects the light-emitting diode 39 from voltage peaks.
  • Figure 2b shows a development of the surface of the incremental encoder 36, i. H. teeth 42 and tooth gaps 43 are shown.
  • Figure 2c the voltage curve caused in the receiving element is plotted against the time t. It can be seen that the respective positive or negative stress maxima are located in the middle of the teeth 42 or the tooth gaps 43. Since, as is known, the light-emitting diode 39 is only permeable in one direction, a signal curve corresponding to FIG. 2d with positive or only with negative values results at the output of the light-emitting diode 39.
  • FIG. 3a shows a segment encoder 46 with segments 47 as the encoder disk.
  • an evaluation circuit 48 in turn has the receiving element 12a and two light-emitting diodes 49, 50 connected in parallel with opposite polarity.
  • a protective resistor 51 can also be omitted if the internal resistance of the induction generator 12a is correspondingly high choir- ".
  • FIG. 3b again shows a development of the surface of the segment encoder 46 with the segments 47 and the gaps between them.
  • the number of segments 47 corresponds to the number of cylinders or half the number of cylinders of the internal combustion engine, depending on whether the segment transmitter 46 is arranged on the crankshaft or the camshaft of the internal combustion engine. It can be seen from FIG. 3c that, depending on the polarity of the receiving element 12a, a positive one at the front edge of the segments 47 Voltage pulse and a negative voltage pulse is generated at the rear edge of the segments 47.
  • the optical output signals of the light emitting diodes 49 are shown in FIG. 3d and the optical output signals of the light emitting diode 50 are shown in FIG. 3e.
  • fiber optic light guide cables consist of several individual fibers. In the light guide 17 in FIG.
  • the individual bevels are combined to form two sub-cables 17a, 17b.
  • the optical output signals of the light-emitting diode 50 are transmitted via the partial cable 17a and the optical output signals of the light-emitting diode 49 are transmitted to the converter 18 via the partial cable 17b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Optical Transform (AREA)

Abstract

Dispositif de contrôle du moteur à combustion interne d'un véhicule motorisé dont le système de détection possède d'une part, un disque (10) émetteur tournant avec un arbre et d'autre part, un élément récepteur (12). L'élément récepteur (12) présente une enroulement (14) utilisé comme source, à la fois pour les impulsions électriques et pour générer une tension dans le générateur (23) du transformateur opto-électrique (16). Le signal est transmis à travers une fibre optique (17) à un transformateur opto-électrique (18) et à un appareil de contrôle (19) du moteur à combustion interne. Le signaux électromagnétiques parasites du système d'alimentation électrique du véhicule à moteur sont ainsi largement affaiblis grâce à la séparation galvanique du générateur du transformateur opto-électrique (16).
PCT/DE1988/000422 1987-08-06 1988-07-07 Dispositif de controle du moteur a combustion interne d'un vehicule motorise comprenant un systeme de detection Ceased WO1989001093A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873726147 DE3726147A1 (de) 1987-08-06 1987-08-06 Vorrichtung zum steuern der brennkraftmaschine eines kraftfahrzeugs mit einem sensorsystem
DEP3726147.9 1987-08-06

Publications (1)

Publication Number Publication Date
WO1989001093A1 true WO1989001093A1 (fr) 1989-02-09

Family

ID=6333203

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1988/000422 Ceased WO1989001093A1 (fr) 1987-08-06 1988-07-07 Dispositif de controle du moteur a combustion interne d'un vehicule motorise comprenant un systeme de detection

Country Status (3)

Country Link
DE (1) DE3726147A1 (fr)
ES (1) ES2008558A6 (fr)
WO (1) WO1989001093A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0594550A1 (fr) * 1992-10-19 1994-04-27 Ab Skf Procédé et dispositif dans un palier

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10216379A1 (de) * 2002-04-12 2003-10-30 Conducta Endress & Hauser Messeinrichtung für die Flüssigkeits-und/oder Gasanalyse
GB2458500A (en) * 2008-03-20 2009-09-23 Hybrid Comb Ltd A method of and system for fuel injected internal combustion engines

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3126023A1 (de) * 1981-07-02 1983-01-13 Volkswagenwerk Ag, 3180 Wolfsburg "anordnung zur gewinnung einer bewegungsinformation, insbesondere einer drehzahlinformation in einem kraftfahrzeug"
JPS595855A (ja) * 1982-07-03 1984-01-12 Honda Motor Co Ltd 内燃エンジンのアイドル回転数安定化装置
JPS6181103A (ja) * 1984-09-25 1986-04-24 Mitsubishi Electric Corp 自動列車制御装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2627761A1 (de) * 1976-06-21 1977-12-29 Hermann Steinhauser Zuendanlage fuer fremdgezuendete brennkraftmaschinen
DE2641239A1 (de) * 1976-09-14 1978-03-16 Bosch Gmbh Robert Steueraggregat zur ausloesung von betriebsvorgaengen insbesondere der zuendung von brennkraftmaschinen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3126023A1 (de) * 1981-07-02 1983-01-13 Volkswagenwerk Ag, 3180 Wolfsburg "anordnung zur gewinnung einer bewegungsinformation, insbesondere einer drehzahlinformation in einem kraftfahrzeug"
JPS595855A (ja) * 1982-07-03 1984-01-12 Honda Motor Co Ltd 内燃エンジンのアイドル回転数安定化装置
JPS6181103A (ja) * 1984-09-25 1986-04-24 Mitsubishi Electric Corp 自動列車制御装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan, Band 10, Nr. 253 (M512)(2309), 19. August 1986 & JP-A-61081103 (MITSUBISHI ELECTRIC CORP.) 24. April 1986 *
Patent Abstracts of Japan, Band 8, Nr. 90 (M-292)(1527), 25. April 1984 & JP-A-59005855 (HONDA GIKEN KOGYO K.K.) 12. Januar 1984 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0594550A1 (fr) * 1992-10-19 1994-04-27 Ab Skf Procédé et dispositif dans un palier

Also Published As

Publication number Publication date
DE3726147A1 (de) 1989-02-16
ES2008558A6 (es) 1989-07-16

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