FR2253390A5 - Engine ignition system - limits time of flow of coil current to reduce current consumption at low speed - Google Patents

Engine ignition system - limits time of flow of coil current to reduce current consumption at low speed

Info

Publication number
FR2253390A5
FR2253390A5 FR7342543A FR7342543A FR2253390A5 FR 2253390 A5 FR2253390 A5 FR 2253390A5 FR 7342543 A FR7342543 A FR 7342543A FR 7342543 A FR7342543 A FR 7342543A FR 2253390 A5 FR2253390 A5 FR 2253390A5
Authority
FR
France
Prior art keywords
low speed
coil
voltage
flow
engine speed
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
Application number
FR7342543A
Other languages
French (fr)
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.)
Ducellier et Cie
Original Assignee
Ducellier et Cie
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 Ducellier et Cie filed Critical Ducellier et Cie
Priority to FR7342543A priority Critical patent/FR2253390A5/en
Priority to FR7423808A priority patent/FR2277987A2/en
Priority to GB50887/74A priority patent/GB1495726A/en
Priority to IT29865/74A priority patent/IT1030836B/en
Priority to ES432313A priority patent/ES432313A1/en
Priority to US05/527,687 priority patent/US4086895A/en
Priority to DE19742456580 priority patent/DE2456580A1/en
Priority to NL7415654A priority patent/NL7415654A/en
Application granted granted Critical
Publication of FR2253390A5 publication Critical patent/FR2253390A5/en
Priority to ES452689A priority patent/ES452689A1/en
Expired legal-status Critical Current

Links

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
    • 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
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
    • F02P5/155—Analogue data processing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Abstract

The system is particularly for motor vehicles, incorporating a high-tension coil. A first voltage is generated proportional to the angular discrepancy between a reference value and the variable angular setting of a rotary component driven in proportion to engine speed. A second voltage is also generated, its value being a function of engine speed. When the sum of these two voltages coincides with a threshold voltage of constant value, a control impulse to start excitation of the ignition coil is generated. This results in an overall time for the necessary, sufficient and controlled current in the coil independent of engine speed which limits current consumption at low speed, and particularly when the supply voltage is increased.
FR7342543A 1973-11-29 1973-11-29 Engine ignition system - limits time of flow of coil current to reduce current consumption at low speed Expired FR2253390A5 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR7342543A FR2253390A5 (en) 1973-11-29 1973-11-29 Engine ignition system - limits time of flow of coil current to reduce current consumption at low speed
FR7423808A FR2277987A2 (en) 1973-11-29 1974-07-09 INTERNAL COMBUSTION ENGINE IGNITION PROCEDURE, ESPECIALLY FOR MOTOR VEHICLES
GB50887/74A GB1495726A (en) 1973-11-29 1974-11-25 Ignition system for internal combustion engines
ES432313A ES432313A1 (en) 1973-11-29 1974-11-27 Ignition system for internal combustion engines
IT29865/74A IT1030836B (en) 1973-11-29 1974-11-27 DEVICE FOR IGNITION OF INTERNAL COMBUSTION ENGINES ESPECIALLY FOR MOTOR VEHICLES
US05/527,687 US4086895A (en) 1973-11-29 1974-11-27 Ignition system for internal combustion engines
DE19742456580 DE2456580A1 (en) 1973-11-29 1974-11-29 Engine ignition system
NL7415654A NL7415654A (en) 1973-11-29 1974-11-29 METHOD AND DEVICE FOR REGULATING THE IGNITION OF A COMBUSTION ENGINE.
ES452689A ES452689A1 (en) 1973-11-29 1976-10-25 Ignition system for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7342543A FR2253390A5 (en) 1973-11-29 1973-11-29 Engine ignition system - limits time of flow of coil current to reduce current consumption at low speed

Publications (1)

Publication Number Publication Date
FR2253390A5 true FR2253390A5 (en) 1975-06-27

Family

ID=9128450

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7342543A Expired FR2253390A5 (en) 1973-11-29 1973-11-29 Engine ignition system - limits time of flow of coil current to reduce current consumption at low speed

Country Status (1)

Country Link
FR (1) FR2253390A5 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2369707A1 (en) * 1976-10-26 1978-05-26 Motorola Inc THRESHOLD CIRCUIT FOR ELECTRONIC IGNITION SYSTEM
FR2418345A1 (en) * 1978-02-22 1979-09-21 Bosch Gmbh Robert Tachometer circuit measuring IC engine speed - has trigger with speed-dependent threshold to control ignition pulses
FR2424419A1 (en) * 1978-04-26 1979-11-23 Ducellier & Cie Electronic ignition system for automobile IC engine - has two generators respectively producing voltages proportional to engine RPM and flywheel reference point angular displacement
FR2437505A1 (en) * 1978-09-29 1980-04-25 Thomson Csf IC engine ignition circuit with coil current control - maintains constant coil current and uses frequency voltage converter
FR2438177A1 (en) * 1978-10-02 1980-04-30 Bosch Gmbh Robert IC engine ignition circuit control - has two Schmitt triggers with outputs connected directly and via delay circuit respectively to OR=gate

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2369707A1 (en) * 1976-10-26 1978-05-26 Motorola Inc THRESHOLD CIRCUIT FOR ELECTRONIC IGNITION SYSTEM
FR2418345A1 (en) * 1978-02-22 1979-09-21 Bosch Gmbh Robert Tachometer circuit measuring IC engine speed - has trigger with speed-dependent threshold to control ignition pulses
FR2424419A1 (en) * 1978-04-26 1979-11-23 Ducellier & Cie Electronic ignition system for automobile IC engine - has two generators respectively producing voltages proportional to engine RPM and flywheel reference point angular displacement
FR2437505A1 (en) * 1978-09-29 1980-04-25 Thomson Csf IC engine ignition circuit with coil current control - maintains constant coil current and uses frequency voltage converter
FR2438177A1 (en) * 1978-10-02 1980-04-30 Bosch Gmbh Robert IC engine ignition circuit control - has two Schmitt triggers with outputs connected directly and via delay circuit respectively to OR=gate

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Legal Events

Date Code Title Description
ST Notification of lapse