EP0051529A1 - Steuervorrichtung zur Regelung der optimalen Kontaktzeit in Zündspulen von Brennkraftmaschinen - Google Patents

Steuervorrichtung zur Regelung der optimalen Kontaktzeit in Zündspulen von Brennkraftmaschinen Download PDF

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Publication number
EP0051529A1
EP0051529A1 EP81401701A EP81401701A EP0051529A1 EP 0051529 A1 EP0051529 A1 EP 0051529A1 EP 81401701 A EP81401701 A EP 81401701A EP 81401701 A EP81401701 A EP 81401701A EP 0051529 A1 EP0051529 A1 EP 0051529A1
Authority
EP
European Patent Office
Prior art keywords
signal
control device
counter
output
input
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
EP81401701A
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English (en)
French (fr)
Other versions
EP0051529B1 (de
Inventor
Jean-Luc Mate
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.)
RENIX ELECTRONIQUE SA
Aumovio France SAS
Original Assignee
Siemens Automotive SA
RENIX ELECTRONIQUE SA
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 Automotive SA, RENIX ELECTRONIQUE SA filed Critical Siemens Automotive SA
Publication of EP0051529A1 publication Critical patent/EP0051529A1/de
Application granted granted Critical
Publication of EP0051529B1 publication Critical patent/EP0051529B1/de
Expired 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
    • 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

Definitions

  • the present invention relates to an ignition coil control device with optimal conduction time regulation for an internal combustion engine.
  • the spark which causes the ignition of the compressed explosive mixture inside a cylinder of an internal combustion engine is produced by the breakdown of the electric current flowing in the primary of a coil and thereby causing an overvoltage. in high school connected to candles.
  • the primary electrical circuit of the coil must therefore remain closed for a sufficient time, greater than or at least equal to the time required to fill the current necessary to obtain the nominal energy in said coil.
  • the present invention removes these restrictions and leads to a general solution.
  • connection with the ignition advance computer requires only a connection of reading of the time strictly necessary to obtain the nominal energy at the input of the device and a connection providing the number N of angular fractions to the computer at the output of the device.
  • the means for measuring the strictly necessary time essentially comprise a counter incremented by a clock H2 so that the number nA at the output of said counter is proportional to the effective duration of rise of the current in the coil.
  • the timing diagram of FIG. 1. explains this characteristic by giving line 2 the current passing through the coil, and line 3, the evolution of the content of the strictly necessary time measurement counter TC.
  • Line 4 gives the duration of the reconstructed window at each period of the line 1 interpolation signal.
  • Line 5 gives the evolution of the number N obtained by counting the resolution signal n times higher than the signal of line 1 during the window of line 4.
  • the only fundamental quantity at the input of the device according to the invention is therefore the time tc which makes it possible to continuously recalculate the number of angular fractions N to be supplied to the output stage of the computer in order to reconstruct the time tc at best, whatever or the instantaneous speed of rotation of the motor.
  • FIG. 3 is an equivalent diagram of the output stage of a digital ignition advance computer usable in association with the control device according to the present invention.
  • the output stage of the computer comprises a counter-accumulator 100 connected by inputs 104 to the outputs of a memory which has not been represented in order to receive an angular digital value No representative thereof. advance to beget.
  • the accumulator counter 100 also has a charging input 106 connected to a sequencer not shown and a counting input 105 by which it receives the signal TS D illustrated in line 1 of FIG. 1.
  • Half of the outputs of highest weight 108 of the counter-accumulator 100 is connected as inputs on the adder 101 already encountered and all of the outputs 108 of the counter-accumulator 100 are connected, moreover, as inputs on a logic gate 102 with AND function whose output 111 is connected to the return to zero input of a flip-flop 103 whose activation input is connected to the output conductor 109 of the adder-comparator 101 which is of limited capacity and which, when there is overflow , emits a pulse on its conductor 109 to actuate the flip-flop 103.
  • the flip-flop 103 provides directly on its output conductor 110 the coil control signal as illustrated in line 16 of Figure 2.
  • the result of the addition made at 101 between the number N and the content of the angular counter 100 causes the instant of conduction N.TSD before the instant of ignition.
  • the number N is therefore found to be directly equal to the number of angular fractions or periods of the interpolation signal illustrated in line 11 of FIG. 2 which separates the instant of conduction from the instant of ignition.
  • two conductors 37 and 38 leave in the direction of a logic block 36.
  • the conductor 37 transmits the signals successive ignition as shown in Figure 2, line 16 and in Figure 5, line 2.
  • the conductor 38 transmits the control signals as shown in Figure 2, line 15 and in Figure 5, line 13.
  • the line Figure 5 shows two successive TDCs.
  • the logic block 36 is connected by a first output 39 to an input of a logic gate 32 with ET function to transmit to it a signal illustrated on line 14, FIG. 5 and which is representative of the conduction time tc strictly necessary for the coil.
  • the second input 34 of the logic gate 32 is attacked by a clock H 1 of period TH 2 corresponding to the illustration of line 15, FIG. 5.
  • the logic block 36 is connected by a second output 41 to the reset input of the counter 1 which receives a pulse as shown in line 16 of Figure 5 prior to receipt of the pulses from the door logic 32 with AND function.
  • the counter 1 has on its outputs 5 a number NA defined as follows:
  • a comparator 6 is attacked, on the one hand, by the outputs 5 of the first counter 1, on the other hand, by the outputs 12 of a second counter 9 whose clock input 10 is connected to the output of a door logic 13 with AND function.
  • This logic gate 13 is attacked on its input 15 by a signal for the start of synchronous counting of the interpolation signal as shown in line 1 of FIG. 6 and on its second input 4 by a clock H 1 of period TH 1 .
  • These are the pulses present on the output 10 of the logic gate 13 which increment the counter 9 by its clock input itself having been reset to zero by its input 11 thanks to a synchronous pulse of the interpolation signal and preceding the arrival of the first pulse present on input 15.
  • the clock input 19 of a D type flip-flop 17 receives the counting start signal at the same time as the input 15 of the logic gate 13 and thus switches its output Q20 to the high state as shown in the line 2 of FIG. 6.
  • NB NA
  • the second input 22 of the logic gate 21 is activated by pulses of period TSD / n illustrated in line 13, FIG. 6.
  • this signal can be generated in accordance with the teaching of the French patent application no. 79/00386 filed on January 9, 1979 in the name of the Régieific des plants RENAULT for "process and apparatus for locating the angular position of a part with a rotating movement".
  • the pulses leaving the logic gate 21 with AND function, the number of which is equal to N enter through its clock input 24 to inside a counter 25 previously reset to zero by its input 26 by the same signal as that applied to the counter 9 by its input 11.
  • the result of the count N appears on the outputs 28 of the counter 25 and is loaded into a memory 29 which is activated on its loading input 30 by a synchronous signal of the interpolation signal preceding the reset pulse of the counters 9 and 25. It is this same number N present on the outputs 31 of the memory 29 which is applied to the inputs 107 of the output stage of the electronic computer 2 as it has been explained with the aid of FIG. 3.
  • Line 14 in FIG. 6 illustrates the number of pulses of period TSD / n passed through the measurement window illustrated in line 12 in FIG. 6 as well as in line 14 in FIG. 5.
  • the conduction time generated is therefore equal to:
  • the control device which is the subject of the present invention makes it possible, during the initialization phase of starting the vehicle, to program, for the first ignition which is generated, a constant conduction time equal to the maximum conduction time encountered in extreme conditions. Operating.
  • the initialization signal emitted by the computer 2 of FIG. 4 arrives, by a conductor 43, at a first input of a logic gate 42 with OV function which activates by its output 45 the loading input of the counter 1.

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  • 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)
  • Electrical Control Of Ignition Timing (AREA)
EP81401701A 1980-11-04 1981-10-27 Steuervorrichtung zur Regelung der optimalen Kontaktzeit in Zündspulen von Brennkraftmaschinen Expired EP0051529B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8023509A FR2493412A1 (fr) 1980-11-04 1980-11-04 Dispositif de commande de bobine d'allumage a regulation de temps de conduction optimal pour moteur a explosion
FR8023509 1980-11-04

Publications (2)

Publication Number Publication Date
EP0051529A1 true EP0051529A1 (de) 1982-05-12
EP0051529B1 EP0051529B1 (de) 1985-08-28

Family

ID=9247649

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81401701A Expired EP0051529B1 (de) 1980-11-04 1981-10-27 Steuervorrichtung zur Regelung der optimalen Kontaktzeit in Zündspulen von Brennkraftmaschinen

Country Status (8)

Country Link
US (1) US4469081A (de)
EP (1) EP0051529B1 (de)
JP (1) JPS57131863A (de)
DE (1) DE3172057D1 (de)
ES (1) ES8300181A1 (de)
FR (1) FR2493412A1 (de)
MX (1) MX153785A (de)
PT (1) PT73923B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2589654A1 (fr) * 1985-10-30 1987-05-07 Bendix Electronics Sa Procede et dispositif de transmission simultanee de deux informations sur une meme ligne electrique suivant des sens opposes

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61279772A (ja) * 1985-06-04 1986-12-10 Nippon Denso Co Ltd 内燃機関の点火制御装置
US4933861A (en) * 1988-10-03 1990-06-12 Ford Motor Company Ignition system with feedback controlled dwell
US5628292A (en) * 1996-04-01 1997-05-13 Ford Motor Company Method and system for generating an engine position dependent output control signal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2358564A1 (fr) * 1976-07-15 1978-02-10 Renault Dispositif de commande de bobine d'allumage pour moteur a explosion a temps de conduction constant
FR2451471A1 (fr) * 1979-03-16 1980-10-10 Thomson Csf Systeme d'allumage du type inductif pour moteur a combustion interne

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5310216B2 (de) * 1972-12-18 1978-04-12
GB1548039A (en) * 1975-10-09 1979-07-04 Renault Electronic control of the ignition system of an internal combustion engine
US4018202A (en) * 1975-11-20 1977-04-19 Motorola, Inc. High energy adaptive ignition via digital control
DE2803556A1 (de) * 1978-01-27 1979-08-02 Bosch Gmbh Robert Vorrichtung zur steuerung des tastverhaeltnisses einer in ihrer frequenz veraenderbaren signalfolge
JPS5578169A (en) * 1978-12-07 1980-06-12 Nippon Soken Inc Electronic control type ignition device for internal combustion engine
JPS5584858A (en) * 1978-12-18 1980-06-26 Nippon Denso Co Ltd Engine control
FR2446467A1 (fr) * 1979-01-09 1980-08-08 Renault Procede et appareillage de reperage de la position angulaire d'une piece animee d'un mouvement de rotation
JPS55109760A (en) * 1979-02-19 1980-08-23 Hitachi Ltd Electronic ignition control
JPS55142965A (en) * 1979-04-25 1980-11-07 Hitachi Ltd Control method of engine ignition timing
DE3071748D1 (en) * 1979-06-15 1986-10-16 Motorola Inc Dwell circuitry for an ingnition control system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2358564A1 (fr) * 1976-07-15 1978-02-10 Renault Dispositif de commande de bobine d'allumage pour moteur a explosion a temps de conduction constant
FR2451471A1 (fr) * 1979-03-16 1980-10-10 Thomson Csf Systeme d'allumage du type inductif pour moteur a combustion interne

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2589654A1 (fr) * 1985-10-30 1987-05-07 Bendix Electronics Sa Procede et dispositif de transmission simultanee de deux informations sur une meme ligne electrique suivant des sens opposes
EP0222630A1 (de) * 1985-10-30 1987-05-20 Siemens Aktiengesellschaft Einrichtung zum gleichzeitigen Übertragen von zwei Informationen über dieselbe elektrische Leitung in die entgegengesetzten Richtungen
US4740952A (en) * 1985-10-30 1988-04-26 Bendix Electronics S.A. Device for the simultaneous transmission of two data signals over the same electrical line in opposite directions

Also Published As

Publication number Publication date
FR2493412A1 (fr) 1982-05-07
US4469081A (en) 1984-09-04
PT73923B (fr) 1983-02-18
JPH0353467B2 (de) 1991-08-15
MX153785A (es) 1987-01-09
ES506800A0 (es) 1982-10-01
DE3172057D1 (en) 1985-10-03
EP0051529B1 (de) 1985-08-28
JPS57131863A (en) 1982-08-14
FR2493412B1 (de) 1984-09-14
PT73923A (fr) 1981-12-01
ES8300181A1 (es) 1982-10-01

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