EP0325587B1 - Zünd- und einspritzsystem für verbrennungsmotoren - Google Patents

Zünd- und einspritzsystem für verbrennungsmotoren Download PDF

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Publication number
EP0325587B1
EP0325587B1 EP87905598A EP87905598A EP0325587B1 EP 0325587 B1 EP0325587 B1 EP 0325587B1 EP 87905598 A EP87905598 A EP 87905598A EP 87905598 A EP87905598 A EP 87905598A EP 0325587 B1 EP0325587 B1 EP 0325587B1
Authority
EP
European Patent Office
Prior art keywords
ignition
injection system
phase
hall
beginning
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
EP87905598A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0325587A1 (de
Inventor
Helmut Denz
Rudolf Moz
Winfried Uttenweiler
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
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0325587A1 publication Critical patent/EP0325587A1/de
Application granted granted Critical
Publication of EP0325587B1 publication Critical patent/EP0325587B1/de
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
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P15/00—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
    • F02P15/008—Reserve ignition systems; Redundancy of some ignition devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P3/00—Other installations
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
    • F02P3/04—Layout of circuits
    • F02P3/045—Layout of circuits for control of the dwell or anti dwell time
    • F02P3/0453—Opening or closing the primary coil circuit with semiconductor devices
    • F02P3/0456—Opening or closing the primary coil circuit with semiconductor devices using digital techniques
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
    • F02P7/067—Electromagnetic pick-up devices, e.g. providing induced current in a coil
    • F02P7/07—Hall-effect pick-up devices

Definitions

  • the invention relates to an ignition system for internal combustion engines according to the preamble of the main claim.
  • phase pulse for example, a reference mark is derived from the ring gear or from the flywheel of the crankshaft. This reference mark occurs once per revolution of the crankshaft, so that only every second reference mark falls within the period of the phase signal.
  • the phase signal and the reference mark thus characterize the beginning of an ignition cycle, from which an exact determination of the optimal ignition times can be carried out in a microprocessor, taking into account further engine data, in particular taking into account the speed. If the encoder for the reference mark or the speed fails in such a system, the motor can no longer be operated.
  • the main claim has the advantage that the further cutouts, which are assigned to the individual top dead centers of the cylinders, each generate a phase signal by means of a Hall sensor, from which a defined fixed ignition angle can be determined.
  • a widened recess which generates a widened phase pulse, indicates the start of an ignition cycle if a reference mark falls within this phase window.
  • the other phase windows must be so narrow that the second reference mark does not come to rest within two revolutions, so that unambiguous cylinder recognition is guaranteed.
  • the phase pulses represent practically the closing time for the ignition coil or for the injection pulses, the ignition spark being generated when the trailing edge of the phase pulses occurs.
  • the ignition angle can be 10 ° before top dead center, for example.
  • the speed can also be determined from the time interval between the trailing edges and a closing time adapted to the speed during which the ignition coil is being charged or the injection time can be determined by the computer. This measure optimizes the emergency firing angle function.
  • the limp home function can also be improved by determining the speed from the fixed trailing edges and from this a delay time for the start of closing and a delay time for the ignition. As a result, a more precise closing time and a variable ignition angle can be achieved for stationary operation, as a result of which overheating of the output stage can be avoided.
  • the measure according to the invention is not limited to ignition systems, but can also be applied to injection systems.
  • the Hall diaphragm 1 shown in FIG. 1a and FIG. 1b has four cutouts 2, 3, 4, 5, of which the cutout 2 is widened compared to the other cutouts 3 to 5.
  • Hall orifice 1 is installed in the ignition distributor or on the camshaft and rotates synchronously with the distributor finger.
  • a Hall sensor 6, the sensor signals of an electronic motor controller 7, is located at a short distance from the Hall aperture 1 ( Figure 2) are supplied.
  • the motor controller 7 shown in FIG. 2 generates the phase signal PS from the sensor signal, which is fed to a computer port 8.
  • a signal converter 9 is provided, which converts the signal received by the Hall sensor 6 into a square-wave signal.
  • Further signal converters 10, 11 are provided, which generate square-wave signals for further evaluation from the reference mark BM derived from the toothed ring of the flywheel and from the speed signal emitted by a speed sensor 12.
  • an emergency operation function can be implemented solely on the basis of the sensor signal emitted by the Hall sensor 6.
  • the top dead center OT of cylinders 1 to 4 is entered in the upper line.
  • the phase signal PS which contains a wider phase pulse PI1 at the beginning of an ignition cycle.
  • the other phase pulses PI2 to PI4 are shorter.
  • the trailing edges R occur with all phase pulses PI1 to PI4 by 10 ° of the crankshaft revolution before top dead center OT of the associated cylinder.
  • the temporal assignment of the reference mark BM which has already been shaped as a rectangular signal, is ensured in such a way that the middle reference mark BM2 does not coincide with a phase pulse. Only the reference mark pulse BM1 coincides with the wider phase pulse PI1, as a result of which the start of the ignition cycle is indicated in synchronized, trouble-free normal operation.
  • an emergency operation function can be maintained solely on the basis of the phase signal PS.
  • the ignition coil ZSP1 of the ignition output stage 14 (FIG. 2) is loaded at the beginning of each phase pulse of the phase signal PS and, when the trailing edge R occurs, the ignition is triggered 10 ° before top dead center OT.
  • the phase signal thus defines a fixed emergency ignition angle, which enables emergency operation in the absence of a reference mark or in the absence of a speed signal.
  • FIG. 4 shows the corresponding diagrams for a 5-cylinder engine, in which a phase pulse PI1 to PI5 is assigned to each cylinder.
  • the additional possibility is given for the current profile of the ignition coil ZSP1 that the time between two successive trailing edges is used to determine the speed.
  • a corrected time for charging the ignition coil can then be calculated from the determined speed.
  • the case is also shown where the closing point and the ignition point are calculated on the basis of the preceding phase edge.
  • the speed can be calculated from the fixed trailing edges and a delay time t VS for the start of closing and a delay time t VZ for the ignition point can be determined therefrom, so that a more precise closing time and a variable ignition angle can be realized for stationary operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
EP87905598A 1986-10-10 1987-09-02 Zünd- und einspritzsystem für verbrennungsmotoren Expired - Lifetime EP0325587B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3634587 1986-10-10
DE19863634587 DE3634587A1 (de) 1986-10-10 1986-10-10 Zuendsystem fuer verbrennungsmotoren

Publications (2)

Publication Number Publication Date
EP0325587A1 EP0325587A1 (de) 1989-08-02
EP0325587B1 true EP0325587B1 (de) 1992-05-06

Family

ID=6311490

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87905598A Expired - Lifetime EP0325587B1 (de) 1986-10-10 1987-09-02 Zünd- und einspritzsystem für verbrennungsmotoren

Country Status (6)

Country Link
US (1) US4941446A (ja)
EP (1) EP0325587B1 (ja)
JP (1) JP2690315B2 (ja)
DE (2) DE3634587A1 (ja)
ES (1) ES2005388A6 (ja)
WO (1) WO1988002817A1 (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01285664A (ja) * 1988-05-09 1989-11-16 Honda Motor Co Ltd 内燃エンジンの電子制御点火方式
JPH07117036B2 (ja) * 1989-04-14 1995-12-18 株式会社日立製作所 点火制御装置
DE4005123A1 (de) * 1990-02-17 1991-08-22 Bosch Gmbh Robert Zuendanlage fuer brennkraftmaschinen
US5074275A (en) * 1990-04-23 1991-12-24 Mitsubishi Denki Kabushiki Kaisha Signal generator and an engine control apparatus using the same
IT1245012B (it) * 1991-01-29 1994-09-13 Weber Srl Sistema di identificazione delle fasi di un motore endotermico
DE4125677A1 (de) * 1991-08-02 1993-02-04 Audi Ag Notlauffaehige steuervorrichtung an einer brennkraftmaschine
DE4310460C2 (de) * 1993-03-31 2003-12-18 Bosch Gmbh Robert Geberanordnung zur schnellen Zylindererkennung bei einer mehrzylindrigen Brennkraftmaschine
US6019086A (en) * 1998-05-28 2000-02-01 Cummins Engine Co. Inc. Redundant sensor apparatus for determining engine speed and timing values
DE102004014369A1 (de) * 2004-03-24 2005-10-13 Robert Bosch Gmbh Verfahren zur Steuerung einer Brennkraftmaschine
DE102009040034A1 (de) * 2009-09-03 2011-03-17 Siemens Aktiengesellschaft Photonenquelle

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106460A (en) * 1976-11-18 1978-08-15 Chrysler Corporation Hall effect electronic ignition control unit with automatic shut-down timer
JPS5870052A (ja) * 1981-10-22 1983-04-26 Kokusan Denki Co Ltd 多気筒内燃機関用点火時期制御装置
US4426974A (en) * 1982-03-01 1984-01-24 Allied Corporation Digital timing circuit for a rotating machine
DE3220896A1 (de) * 1982-06-03 1983-12-08 Robert Bosch Gmbh, 7000 Stuttgart Sensor
US4444171A (en) * 1982-11-10 1984-04-24 Echlin, Inc. Electronic ignition timing
GB8318008D0 (en) * 1983-07-02 1983-08-03 Lucas Ind Plc Angular position detector
GB8322886D0 (en) * 1983-08-25 1983-09-28 Lucas Ind Plc Transducer means
JPS6047877A (ja) * 1983-08-26 1985-03-15 Nippon Denso Co Ltd 内燃機関用基準位置検出装置
JPS60148909U (ja) * 1984-03-14 1985-10-03 日産自動車株式会社 クランク角検出装置
US4553426A (en) * 1984-05-23 1985-11-19 Motorola, Inc. Reference pulse verification circuit adaptable for engine control
JPS60261978A (ja) * 1984-06-08 1985-12-25 Mitsubishi Motors Corp エンジン用点火時期制御装置
JPS62651A (ja) * 1985-02-06 1987-01-06 Honda Motor Co Ltd 内燃エンジンの制御装置
DE3541624A1 (de) * 1985-11-25 1987-05-27 Siemens Ag Anordnung zur identifikation von winkelimpulsen
DE3602292A1 (de) * 1986-01-25 1987-08-06 Audi Ag Geberanordnung
DE3605820A1 (de) * 1986-02-22 1987-08-27 Bosch Gmbh Robert Vorrichtung zum regeln einer brennkraftmaschine
DE3608321A1 (de) * 1986-03-13 1987-09-17 Pierburg Gmbh & Co Kg Einrichtung zum erfassen der zylinderbezogenen kurbelwellenstellung

Also Published As

Publication number Publication date
DE3778906D1 (de) 1992-06-11
DE3634587A1 (de) 1988-04-14
WO1988002817A1 (en) 1988-04-21
JPH02500763A (ja) 1990-03-15
JP2690315B2 (ja) 1997-12-10
EP0325587A1 (de) 1989-08-02
ES2005388A6 (es) 1989-03-01
US4941446A (en) 1990-07-17

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