GB1255333A - Pulse generating apparatus - Google Patents

Pulse generating apparatus

Info

Publication number
GB1255333A
GB1255333A GB56876/68A GB5687668A GB1255333A GB 1255333 A GB1255333 A GB 1255333A GB 56876/68 A GB56876/68 A GB 56876/68A GB 5687668 A GB5687668 A GB 5687668A GB 1255333 A GB1255333 A GB 1255333A
Authority
GB
United Kingdom
Prior art keywords
time delay
projection
transistor
constant
oscillator
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
GB56876/68A
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.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger 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 Compteurs Schlumberger SA filed Critical Compteurs Schlumberger SA
Publication of GB1255333A publication Critical patent/GB1255333A/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
    • 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
    • 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
    • F02P5/1551—Analogue data processing by determination of elapsed time with reference to a particular point on the motor axle, dependent on specific conditions
    • 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
    • F02P5/1553—Analogue data processing by determination of elapsed angle with reference to a particular point on the motor axle, dependent on specific conditions
    • F02P5/1555—Analogue data processing by determination of elapsed angle with reference to a particular point on the motor axle, dependent on specific conditions using a continuous control, dependent on speed
    • 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

1,255,333. Electric correspondence control. COMPAGNIE DES COMPTEURS. Nov. 29, 1968 [Nov. 30, 1967], No. 56876/68. Heading G1N. [Also in Division F1] The ignition circuit Q of an I.C. engine is controlled in dependence upon the angular position of a cam projection K<SP>1</SP> rotated with the crankshaft and affecting the impedance of a coil L included in an oscillator X such that oscillations are quenched when K<SP>1</SP> is adjacent coil L. The D.C. output at the oscillator terminal S is supplied to a pulse-shaping circuit Z which produces rectangular pulses at a rate proportional to the rate of rotation of K<SP>1</SP>. The train of pulses is passed to the ignition circuit Q and also to a frequency-responsive circuit Y which supplies a signal, proportional to the pusle repetition rate, to a transistor T<SP>1</SP>. Transistor T<SP>1</SP> controls the base bias of the oscillator transistor T such that the time delay between movement of the projection K<SP>1</SP> and a corresponding change in the state of the oscillator is variable with engine speed. Thus, for low-speeds, transistor T<SP>1</SP> conducts, R 2 shunts R 4 and the time delay is high and constant such that the ignition advance is effectively zero; for increasing intermediate speeds, T<SP>1</SP> does not conduct, the voltage at point B increases rapidly and the time delay decreases rapidly such that there is a rapid advance in the point of ignition; for high-speeds the voltage at point B is constant and the time delay is low and constant such that the setting of the advance is constant. In alternatives, the time delay may be controlled by varying the value of R 1 and/or C 1 , or by varying the distance between the coil and the projection e.g. by having an irregular shaped projection or by making all or part of the projection displace as a function of the centrifugal force.
GB56876/68A 1967-11-30 1968-11-29 Pulse generating apparatus Expired GB1255333A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR130310 1967-11-30

Publications (1)

Publication Number Publication Date
GB1255333A true GB1255333A (en) 1971-12-01

Family

ID=8642500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB56876/68A Expired GB1255333A (en) 1967-11-30 1968-11-29 Pulse generating apparatus

Country Status (4)

Country Link
US (1) US3587552A (en)
DE (1) DE1811694A1 (en)
FR (1) FR1555752A (en)
GB (1) GB1255333A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156524A (en) * 1984-03-22 1985-10-09 Cambridge Electronic Ind Tachogenerators

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH534303A (en) * 1970-06-05 1973-02-28 Magneti Marelli Spa Electronic diode control device controlled in a capacitive discharge electronic ignition circuit
NL7013168A (en) * 1970-09-05 1972-03-07
US3765391A (en) * 1971-02-22 1973-10-16 W Cook Transistorized ignition system
FR2177218A5 (en) * 1972-03-24 1973-11-02 Schlumberger Compteurs
DE2314559C2 (en) * 1973-03-23 1982-08-05 Robert Bosch Gmbh, 7000 Stuttgart Ignition system for internal combustion engines with a magneto
US3831571A (en) * 1973-05-11 1974-08-27 Motorola Inc Variable dwell ignition system
US3923029A (en) * 1973-05-18 1975-12-02 Benito Polo Electronic ignition system
US3995608A (en) * 1974-06-18 1976-12-07 Hitachi, Ltd. Ignition timing control system for internal combustion engine
FR2321606A1 (en) * 1975-08-18 1977-03-18 Sev Marchal SIMPLIFIED ANALOGUE PROCESS AND DEVICE FOR ENSURING PERIODIC CONTROL, IN PARTICULAR FOR THE IGNITION DELAY OF AN INTERNAL COMBUSTION ENGINE
US4126112A (en) * 1976-02-27 1978-11-21 Eltra Corporation Breakerless electronic ignition system
DE2636945C2 (en) * 1976-08-17 1984-08-23 Robert Bosch Gmbh, 7000 Stuttgart Ignition system for internal combustion engines with a magnetic generator
DE2648531C2 (en) * 1976-10-27 1986-10-09 Robert Bosch Gmbh, 7000 Stuttgart Ignition device for internal combustion engines
JPS5593964A (en) * 1979-01-10 1980-07-16 Hitachi Ltd Electronic spark advance ignitor
JPS5851070U (en) * 1981-10-01 1983-04-06 三菱電機株式会社 internal combustion engine ignition system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156524A (en) * 1984-03-22 1985-10-09 Cambridge Electronic Ind Tachogenerators

Also Published As

Publication number Publication date
FR1555752A (en) 1969-01-31
DE1811694A1 (en) 1969-10-16
US3587552A (en) 1971-06-28

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