EP0386431A2 - Circuit de mesure de la tension primaire d'une bobine d'allumage - Google Patents

Circuit de mesure de la tension primaire d'une bobine d'allumage Download PDF

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Publication number
EP0386431A2
EP0386431A2 EP19900101468 EP90101468A EP0386431A2 EP 0386431 A2 EP0386431 A2 EP 0386431A2 EP 19900101468 EP19900101468 EP 19900101468 EP 90101468 A EP90101468 A EP 90101468A EP 0386431 A2 EP0386431 A2 EP 0386431A2
Authority
EP
European Patent Office
Prior art keywords
voltage
primary voltage
circuit arrangement
input
arrangement according
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
EP19900101468
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German (de)
English (en)
Other versions
EP0386431A3 (fr
EP0386431B1 (fr
Inventor
Bernd Bodig
Klaus Dipl.-Ing. Hueser
Achim Dipl.-Ing. Herzog
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 EP0386431A2 publication Critical patent/EP0386431A2/fr
Publication of EP0386431A3 publication Critical patent/EP0386431A3/fr
Application granted granted Critical
Publication of EP0386431B1 publication Critical patent/EP0386431B1/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
    • F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
    • F02P17/10—Measuring dwell or antidwell time
    • 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
    • F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
    • F02P17/12—Testing characteristics of the spark, ignition voltage or current

Definitions

  • the invention relates to a circuit arrangement for measuring the primary voltage of an ignition coil according to the preamble of the main claim.
  • Circuits for measuring the primary voltage of ignition coils in motor vehicles which require transistors and Zener diodes to detect the spark duration of the ignition spark. At the output of this circuit, only a digital signal is provided, which identifies the spark duration.
  • the required transistors and Zener diodes are unfavorable for use in hybrid circuits, since these components represent a high manufacturing outlay.
  • the circuit arrangement for measuring the primary voltage of an ignition coil with the features of the main claim has the advantage that the spark duration can still be evaluated digitally and there is also the possibility of analogue detection of the primary voltage on two different scales.
  • all ignition coils can be monitored with the circuit arrangement according to the invention with regard to their primary voltage.
  • several input diodes are arranged on the input side, which form an input-side OR gate.
  • the analog primary voltage is divided by means of a voltage divider and reduced primary voltage is evaluated analog and digital. This enables both analog burning voltage detection and digital spark duration detection. Transistors and Zener diodes are not required, which is why the circuit arrangement is well suited for implementation in hybrid technology.
  • a mean value is formed on the divider tap using a capacitor.
  • subsequent IC inputs can also be protected against overvoltages.
  • the differential amplifier is a comparator with switching hysteresis, the output voltage of which is used for digital spark duration detection.
  • the output signals of the circuit arrangement can be evaluated in the computer of the existing motor control and taken into account for control functions.
  • the circuit arrangement shown in FIG. 1 has two protective diodes D1, D2 at its two inputs for the primary voltages UP1, UP2 of two primary voltages (not shown), which form an input OR gate.
  • the respective applied primary voltage UP1 or UP2 is reduced by the factor R2 / (R1 + R2) via a voltage divider with the divider resistors R1, R2.
  • a mean value formation of the reduced primary voltage is carried out by means of a capacitor C1 connected in parallel with the divider resistor R2, which is supplied to an evaluation circuit 1 as an analog output voltage UA.
  • the battery voltage UB is divided by a second voltage divider with the resistors R3, R4, the divided battery voltage being supplied to the negative input of a differential amplifier 2 as a reference voltage UR.
  • a diode D3 is connected in series with the diode voltage UD to the resistor R4.
  • the divided primary voltage is present at the positive input of differential amplifier 2 via an input resistor R5. Between positive input of the difference amplifier 2 and its output, a feedback resistor R6 is effective.
  • the differential amplifier 2 wired in this way works like a comparator with switching hysteresis and outputs a digital output voltage UD, the duration of which corresponds to the spark duration.
  • the digital output voltage UD is also evaluated in the evaluation circuit 1.
  • the divided primary voltage occurring at the divider tap between the divider resistors R1 and R2 is clamped by means of a diode D5 and another low-resistance voltage divider, which consists of the resistors R7, R8.
  • the brackets are dimensioned such that primary voltages above the operating voltage are bracketed, the divider resistors R1 and R7 acting in parallel with R8 for these voltages. Voltages above the operating voltage can thus also be evaluated analogously in the evaluation circuit 1 on a changed scale.
  • the capacitor C1 must be chosen to be sufficiently small so that the analog evaluation of overvoltages is possible.
  • the diode D4 has the same function in relation to the battery voltage UB as the diode D5 in relation to the primary voltages UP1 and UP2.
  • the comparator designed as a differential amplifier 2 compares the divided primary voltage UA with the reference voltage UR, which is derived from the battery voltage UB by means of a voltage divider.
  • the comparator has a hysteresis which is determined by the resistors R5 and R6.
  • An analog primary voltage detection 3 and a digital one take place in the evaluation circuit 1, which can be part of the motor control not shown here Spark duration detection 4.
  • the values determined can be taken into account for control functions in the engine control.
  • the output voltages UA, UD can also be evaluated for error detection.
  • the time profile of a primary voltage UP is shown in FIG.
  • the associated output voltages UA and UD are shown in FIG. 3 and FIG. 4.
  • FIG. 3 shows the course of the analog output voltage UA with a broken line as it occurs without capacitor C1.
  • the capacitor C1 thus has the capacitance OnF. If, on the other hand, a capacitor C1 is used as shown in FIG. 1, the curve of the voltage UA smoothes out according to the voltage curve shown with a solid line.
  • the signal shown in Figure 4 indicates the spark duration T.

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)
  • Measurement Of Current Or Voltage (AREA)
EP90101468A 1989-03-09 1990-01-25 Circuit de mesure de la tension primaire d'une bobine d'allumage Expired - Lifetime EP0386431B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3907616 1989-03-09
DE3907616A DE3907616A1 (de) 1989-03-09 1989-03-09 Schaltungsanordnung zur messung der primaerspannung einer zuendspule

Publications (3)

Publication Number Publication Date
EP0386431A2 true EP0386431A2 (fr) 1990-09-12
EP0386431A3 EP0386431A3 (fr) 1991-04-24
EP0386431B1 EP0386431B1 (fr) 1994-06-15

Family

ID=6375916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90101468A Expired - Lifetime EP0386431B1 (fr) 1989-03-09 1990-01-25 Circuit de mesure de la tension primaire d'une bobine d'allumage

Country Status (3)

Country Link
US (1) US5075627A (fr)
EP (1) EP0386431B1 (fr)
DE (2) DE3907616A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0502549A2 (fr) * 1991-03-07 1992-09-09 BERU Ruprecht GmbH & Co. KG Dispositif de surveillance de l'étincelle dans une installation d'allumage
DE4331874A1 (de) * 1993-09-21 1995-03-23 Telefunken Microelectron Schaltungsanordnung zur Begrenzung der Zündspannung
EP0652363A2 (fr) * 1993-11-08 1995-05-10 Chrysler Corporation Système d'allumage et de contrôle d'un moteur
EP0740072A1 (fr) * 1995-04-28 1996-10-30 STMicroelectronics S.r.l. Méthode et circuit pour détecter la présence d'une etincelle dans un moteur à combustion interne
EP0740073A1 (fr) * 1995-04-28 1996-10-30 Co.Ri.M.Me. Consorzio Per La Ricerca Sulla Microelettronica Nel Mezzogiorno Circuit pour détecter une surtension dans un charge électrique
WO1998004830A1 (fr) * 1996-07-26 1998-02-05 Robert Bosch Gmbh Circuit de mesure de la tension primaire des bobines d'allumage d'un allumeur d'un moteur a combustion interne
WO1999007995A1 (fr) * 1997-08-12 1999-02-18 Siemens Aktiengesellschaft Dispositif de mesure et de diagnostic pour le systeme d'allumage d'un moteur a combustion interne
US6278278B1 (en) 1998-08-12 2001-08-21 Siemens Aktiengesellschaft Measuring and diagnostic device for an ignition system of an internal combustion engine
CZ309271B6 (cs) * 2019-12-18 2022-07-06 OZM Research s.r.o Vysokonapěťová diferenciální sonda a zařízení pro měření a vyhodnocování energie elektrického výboje

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4020986C2 (de) * 1990-07-02 1998-09-03 Telefunken Microelectron Elektronisches Zündsystem für eine Brennkraftmaschine
JP2004187168A (ja) * 2002-12-05 2004-07-02 Sumitomo Electric Ind Ltd 回路構成、光受信器、及び光リンク
US8031452B2 (en) * 2008-07-10 2011-10-04 Siemens Industry, Inc. Single-supply single-ended high voltage peak detector
CN105730240B (zh) * 2009-11-30 2018-12-11 前瞻思维产品有限公司 电池模拟器及其使用方法
JP5838776B2 (ja) * 2011-12-15 2016-01-06 富士電機株式会社 内燃機関用点火装置
US20180135590A1 (en) * 2016-11-15 2018-05-17 Woodward, Inc. Controlling Engine Ignition
JP7208404B2 (ja) * 2018-12-21 2023-01-18 チャンピオン・エアロスペース・リミテッド・ライアビリティ・カンパニー 火花点火器の寿命検出

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2626499A1 (de) * 1975-06-16 1976-12-23 Sun Electric Corp Einrichtung zur messung der ruhe- bzw. haltezeit eines automobilzuendsystemes
DE2759155A1 (de) * 1977-12-31 1979-07-12 Bosch Gmbh Robert Schaltungsanordnung zur erfassung der funkendauer fuer regel- oder schaltsteuerungen
US4165481A (en) * 1977-09-15 1979-08-21 United Technologies Corporation Versatile ignition defeat and signal conditioning
DE3043255A1 (de) * 1980-11-15 1982-07-01 Robert Bosch Gmbh, 7000 Stuttgart Diagnosegeraet
US4454560A (en) * 1980-11-18 1984-06-12 Tokyo Shibaura Denki Kabushiki Kaisha Ignition detector circuit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4395679A (en) * 1977-11-25 1983-07-26 Clayton Manufacturing Company Single sensor engine analyzer with noise rejection and automatic triggering circuit
US4377785A (en) * 1979-07-06 1983-03-22 Nippon Soken, Inc. Device for diagnosing ignition system for use in internal combustion engine
JPS5751960A (en) * 1980-09-11 1982-03-27 Nippon Soken Inc Ignition system diagnostic apparatus for internal combustion engine
US4399407B2 (en) * 1981-12-04 1999-02-09 Spx Corp Engine analyzer with constant width digital waveform display
US4918389A (en) * 1988-06-03 1990-04-17 Robert Bosch Gmbh Detecting misfiring in spark ignition engines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2626499A1 (de) * 1975-06-16 1976-12-23 Sun Electric Corp Einrichtung zur messung der ruhe- bzw. haltezeit eines automobilzuendsystemes
US4165481A (en) * 1977-09-15 1979-08-21 United Technologies Corporation Versatile ignition defeat and signal conditioning
DE2759155A1 (de) * 1977-12-31 1979-07-12 Bosch Gmbh Robert Schaltungsanordnung zur erfassung der funkendauer fuer regel- oder schaltsteuerungen
DE3043255A1 (de) * 1980-11-15 1982-07-01 Robert Bosch Gmbh, 7000 Stuttgart Diagnosegeraet
US4454560A (en) * 1980-11-18 1984-06-12 Tokyo Shibaura Denki Kabushiki Kaisha Ignition detector circuit

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0502549A2 (fr) * 1991-03-07 1992-09-09 BERU Ruprecht GmbH & Co. KG Dispositif de surveillance de l'étincelle dans une installation d'allumage
EP0502549A3 (en) * 1991-03-07 1993-12-01 Beru Werk Ruprecht Gmbh Co A Spark survey in spark ignition engine
DE4331874A1 (de) * 1993-09-21 1995-03-23 Telefunken Microelectron Schaltungsanordnung zur Begrenzung der Zündspannung
DE4331874C2 (de) * 1993-09-21 1999-07-01 Temic Semiconductor Gmbh Zündanlage für Brennkraftmaschinen mit einer ruhenden Zündspannungsverteilung
EP0652363A2 (fr) * 1993-11-08 1995-05-10 Chrysler Corporation Système d'allumage et de contrôle d'un moteur
EP0652363A3 (fr) * 1993-11-08 1996-05-29 Chrysler Corp Système d'allumage et de contrÔle d'un moteur.
EP0740073A1 (fr) * 1995-04-28 1996-10-30 Co.Ri.M.Me. Consorzio Per La Ricerca Sulla Microelettronica Nel Mezzogiorno Circuit pour détecter une surtension dans un charge électrique
US5735254A (en) * 1995-04-28 1998-04-07 Sgs-Thomson Microelectronics S.R.L. Circuit for detecting an overvoltage on a switched inductive load
US5790039A (en) * 1995-04-28 1998-08-04 Sgs-Thomson Microelectronics S.R.L. Method for detecting the presence of a spark in an electronic ignition system used with an internal combustion engine
EP0740072A1 (fr) * 1995-04-28 1996-10-30 STMicroelectronics S.r.l. Méthode et circuit pour détecter la présence d'une etincelle dans un moteur à combustion interne
WO1998004830A1 (fr) * 1996-07-26 1998-02-05 Robert Bosch Gmbh Circuit de mesure de la tension primaire des bobines d'allumage d'un allumeur d'un moteur a combustion interne
WO1999007995A1 (fr) * 1997-08-12 1999-02-18 Siemens Aktiengesellschaft Dispositif de mesure et de diagnostic pour le systeme d'allumage d'un moteur a combustion interne
US6278278B1 (en) 1998-08-12 2001-08-21 Siemens Aktiengesellschaft Measuring and diagnostic device for an ignition system of an internal combustion engine
CZ309271B6 (cs) * 2019-12-18 2022-07-06 OZM Research s.r.o Vysokonapěťová diferenciální sonda a zařízení pro měření a vyhodnocování energie elektrického výboje

Also Published As

Publication number Publication date
DE3907616A1 (de) 1990-09-20
EP0386431A3 (fr) 1991-04-24
EP0386431B1 (fr) 1994-06-15
US5075627A (en) 1991-12-24
DE59006090D1 (de) 1994-07-21

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