EP0443169A2 - Méthode de distribution de signaux d'allumage dans un système de distribution statique de la haute tension - Google Patents

Méthode de distribution de signaux d'allumage dans un système de distribution statique de la haute tension Download PDF

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Publication number
EP0443169A2
EP0443169A2 EP19900124713 EP90124713A EP0443169A2 EP 0443169 A2 EP0443169 A2 EP 0443169A2 EP 19900124713 EP19900124713 EP 19900124713 EP 90124713 A EP90124713 A EP 90124713A EP 0443169 A2 EP0443169 A2 EP 0443169A2
Authority
EP
European Patent Office
Prior art keywords
signals
ignition
address
flip
microcomputer
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.)
Granted
Application number
EP19900124713
Other languages
German (de)
English (en)
Other versions
EP0443169B1 (fr
EP0443169A3 (en
Inventor
Egbert Dipl.-Phys. Perenthaler
Dirk Dipl.-Ing. Mentgen
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 EP0443169A2 publication Critical patent/EP0443169A2/fr
Publication of EP0443169A3 publication Critical patent/EP0443169A3/de
Application granted granted Critical
Publication of EP0443169B1 publication Critical patent/EP0443169B1/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
    • 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
    • F02P7/02—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors
    • F02P7/03—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors with electrical means
    • F02P7/035—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors with electrical means without mechanical switching means

Definitions

  • the invention relates to a distribution of the ignition signal in a system with a static high-voltage distribution according to the preamble of claim 1.
  • a known distribution of the ignition signal in a system with a static high-voltage distribution of an internal combustion engine contains a microcomputer for generating ignition signals and address signals, these determining the downstream ignition output stage to which the respective ignition signal is switched. Three address lines are provided, which are fed to a decoder, which outputs the drive signals to the ignition output stages as output signals.
  • the microcomputer determines the timing of the signals based on the information from a connected speed signal.
  • the microcomputer can lose synchronization during the ignition signal, so that the addresses on the address lines suddenly change as a result of the fault. This leads to misfires both in the ignition power stage controlled with the old address and in the ignition output stage controlled with the new address. At the ignition stage controlled with the old address is ignited at the wrong ignition point, namely too early, while the ignition at the ignition stage driven with the new address is completely wrong. These misfires can cause severe knocking, in extreme cases, engine damage.
  • the address signals generated by the microcomputer are fed via address lines to a flip-flop component which takes over the address signals during the open time of the ignition signals. Address changes during the open time do not lead to misfires anyway if the microcomputer resynchronizes within the open time.
  • These adopted ignition signals are stored during the closing time of the ignition signals and sent to the decoder as stored address signals. Via this temporary storage of the address signals during the closing time, incorrect address changes during the closing time, which are then not taken over by the flip-flop component, do not lead to misfires, since the address signals adopted during the open time are constantly present at the decoder during the closing time. Faults on the speed signal or changes in the address signals during the closing time therefore have no influence on the temporarily stored address signals on the decoder. This prevents misfires caused by changing addresses during the closing time, which prevents damaging engine knocking.
  • the address signals generated by the microcomputer precisely synchronized with the respective ignition signal from the flip-flop component by taking over and synchronizing with the rising edge of the respective ignition signal.
  • FIG. 1 shows the block diagram of an ignition signal distribution 1 with a microcomputer 2, a flip-flop component 3 and a decoder 4.
  • a speed signal D is connected to the microcomputer 2 as an input signal for a temporal assignment of the ignition signals to engine operation.
  • the ignition signals Z are supplied to both the flip-flop component 3 and the decoder 4.
  • address signals are generated by the microcomputer 2 via three address lines and fed to the flip-flop component 3 (triple D-type).
  • the address signals on the three address lines A0 ⁇ , A1, A2 are digitally output in a three code, for example 000; 100; 010; Etc.
  • the time diagram of FIG. 3 shows in more detail below the takeover and temporary storage of the data from the microcomputer 2 generated address signals explained by the flip-flop component 3.
  • the top line shows the time course of the address signals A0 ⁇ , A1, A2, whereby in analogy to the above function table of the decoder (instead of the values X0 ⁇ , X1, X2 A0 ⁇ , A1, A2 would have to be taken directly), the address signal 010 a control signal Y3, the address signal 011 a control signal Y4, the address signal 100 a control signal Y5 and the address signal 000 a control signal Y1 are assigned.
  • FIG. 3 shows the ignition signal distribution according to the invention with the takeover and temporary storage of the address signals A0 ⁇ , A1, A2 generated by the microcomputer in the flip-flop component 3. It can be seen from the time diagram in FIG. 3 that the address signals A0 ⁇ , A1, A2 generated by the microcomputer 1 are taken over and stored each time the ignition signals Z rise on the edges.
  • the temporarily stored address signals X0 ⁇ , X1, X2 are each held over the closing time and subsequent open time of the ignition signals Z and are constantly present at the decoder 4 during this time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
EP90124713A 1990-02-22 1990-12-19 Méthode de distribution de signaux d'allumage dans un système de distribution statique de la haute tension Expired - Lifetime EP0443169B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4005544A DE4005544A1 (de) 1990-02-22 1990-02-22 Verteilung des zuendsignals bei einem system mit ruhender hochspannungsverteilung
DE4005544 1990-02-22

Publications (3)

Publication Number Publication Date
EP0443169A2 true EP0443169A2 (fr) 1991-08-28
EP0443169A3 EP0443169A3 (en) 1993-05-12
EP0443169B1 EP0443169B1 (fr) 1996-03-13

Family

ID=6400701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90124713A Expired - Lifetime EP0443169B1 (fr) 1990-02-22 1990-12-19 Méthode de distribution de signaux d'allumage dans un système de distribution statique de la haute tension

Country Status (3)

Country Link
EP (1) EP0443169B1 (fr)
JP (1) JP3043442B2 (fr)
DE (2) DE4005544A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6115665A (en) * 1993-05-07 2000-09-05 Ford Motor Company Memory efficient computer system and method for controlling an automotive ignition system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026429A1 (fr) * 1979-10-01 1981-04-08 Jenbacher Werke AG Dispositif d'allumage pour moteurs à combustion interne à plusieurs cylindres
EP0113894A2 (fr) * 1982-12-16 1984-07-25 Mitsubishi Denki Kabushiki Kaisha Circuit d'allumage pour un moteur à combustion interne
EP0138494A2 (fr) * 1983-09-28 1985-04-24 Mitsubishi Denki Kabushiki Kaisha Dispositif d'allumage pour moteurs à combustion interne

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026429A1 (fr) * 1979-10-01 1981-04-08 Jenbacher Werke AG Dispositif d'allumage pour moteurs à combustion interne à plusieurs cylindres
EP0113894A2 (fr) * 1982-12-16 1984-07-25 Mitsubishi Denki Kabushiki Kaisha Circuit d'allumage pour un moteur à combustion interne
EP0138494A2 (fr) * 1983-09-28 1985-04-24 Mitsubishi Denki Kabushiki Kaisha Dispositif d'allumage pour moteurs à combustion interne

Also Published As

Publication number Publication date
EP0443169B1 (fr) 1996-03-13
JP3043442B2 (ja) 2000-05-22
JPH04219466A (ja) 1992-08-10
DE59010199D1 (de) 1996-04-18
DE4005544A1 (de) 1991-08-29
EP0443169A3 (en) 1993-05-12

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