EP0033748A1 - Vorrichtung zum regeln der zündzeitpunktverstellung - Google Patents

Vorrichtung zum regeln der zündzeitpunktverstellung Download PDF

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Publication number
EP0033748A1
EP0033748A1 EP80901486A EP80901486A EP0033748A1 EP 0033748 A1 EP0033748 A1 EP 0033748A1 EP 80901486 A EP80901486 A EP 80901486A EP 80901486 A EP80901486 A EP 80901486A EP 0033748 A1 EP0033748 A1 EP 0033748A1
Authority
EP
European Patent Office
Prior art keywords
ignition
ignition timing
engine
timing control
control apparatus
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.)
Withdrawn
Application number
EP80901486A
Other languages
English (en)
French (fr)
Other versions
EP0033748A4 (de
Inventor
Hisatsugo Mitsubishi Denki K.K. Ito
Atsushi Mitsubishi Denki K.K. Ueda
Masaaki Mitsubishi Denki K.K. Miyazaki
Mitsuaki Mitsubishi Denki K.K. Ishii
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP0033748A1 publication Critical patent/EP0033748A1/de
Publication of EP0033748A4 publication Critical patent/EP0033748A4/de
Withdrawn legal-status Critical Current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

  • This invention relates to an ignition timing - control apparatus for an engine.
  • General electronically controlled ignition control apparatus control the ignition timing by having, as one input, a reference position sensor disposed within the distributor and futther, as the other input, another sensor for sensing the operating status of engines, for example, a negative pressure in the suction manifold or like, calculating electrically the ignition timing and intermitting the primary current through the ignition coil.
  • the present invention relates to an advance control system of a low voltage distribution system without the high voltage distribution effected through a distributor and makes it possible to control an ignition timing highly stably with an extremely high accuracy by obtaining reference ignition signals with predetermined angle widths from positions of a crank shaft through a plurality of access switches but not from positions of rotation of a rotary shaft of a distributor. Thus the practical merit is extremely great.
  • Fig. 1 is a structural view illustrating an embodiment of the present invention.
  • Figs. 2, 3 and 4 are diagrams of waveforms explaining the operation of the apparatus shown in Fig. 1.
  • Fig. 1 is a structural view illustrating an embodiment of the present invention.
  • (1) is a rotary member mounted to a crank shaft (4) for a four-cylinder four cycle engine (not shown) and having a portion (100) with a different electrical property on one part of its periphery.
  • (2) and (3) are access switches - mounted at positions symmetric with respect to the center of the rotary member (1) and disposed so as to generate outputs having pulse widths corresponding to the angle width of the portion (100) having the different electrical property at the periphery of the rotary member (1) in synchronization with the rotation of the rotary member (1).
  • (5) is a negative pressure sensor for measuring a pressure in a suction manifold for the engine.
  • the (6) is an ignition control device having, as inputs, signals provided from the access switches (2) and (3) and the negative pressure sensor (6) and effecting the supply and interruption of currents to ignition coils (7) and (8) at proper timings.
  • the ignition coils (7) and (8) have primary windings (70) and (80) and secondary windings (71) and (81) respectively.
  • the primary winding (70) or (80) is connected at one end (700) or (800) to that side of an electric source (10) not connected to ground and the other end (701) or (801) to the ignition control device (6).
  • the secondary windings (71) and (81) of the ignition coils (7) and (8) have output terminals (710), (711), (810) and (811) connected to ignition plugs (90), (91), (92) and (93) respectively.
  • Fig. 1 it is assumed that an ignition sequence is in the order of the ignition plugs (90), (91), (92) and (93).
  • electrical signals provided from the access switches (2) and (3) have waveforms such as shown in Fig. 2.
  • the ignition control device (6) is used for this purpose.
  • the ignition control device (6) forms inputs of the reference position signal provided from the access switches (2) and (3), a signal for the number of revolution of the engine obtained by measuring the period of the reference position signals and a signal from the other sensor (the negative pressure sensor (5) in Fig. 2) for sensing the operating status of the engine, calculates the proper ignition position and controls currents through the ignition coils (7) and (8). That is, ignition signals are generated at points Q 90 , Q 91 , Q 92 and Q 93 leading tailing edges P 90' P 91' P 92 and P 93 of signal waveforms provided from the access switches (2) and (3) by angles of 8A as shown in Fig. 3 and interrupt the primary current through the ignition coil (7) or (8). In Fig. 3 the angle ⁇ A is an angle calculated and controlled by the ignition control device (6) and called generally an advance angle.
  • the engine may be broken.
  • Another object of the present invention is to eliminate such objections.
  • the tailing edge (100-T) of the portion (100) having the different electrical property and disposed on the rotary member (1) is determined so as to correspond to the reference ignition position as described above, but a leading edge (100-L) is determined so as to correspond to a maximum advance required for the engine or a position leading the maximum advance by a constant magnitude. From this it is possible to avoid the abovementioned objections.
  • the relationship between the signal waveforms provided from the access switches (2) and (3) and the ignition signal outputted from the ignition control device 6 is substantially as shown in Fig. 4.
  • Fig. 4 the relationship between the signal waveforms provided from the access switches (2) and (3) and the ignition signal outputted from the ignition control device 6 is substantially as shown in Fig. 4.
  • the ignition timings Q 90 , Q 91 , Q 92 and Q 93 can be controlled as delays from the R 90 , R 91 , R 92 and R 93 by the ignition control device (6) respectively.
  • the control accuracy is sharply improved.
  • the great effect is present in the stable operation of the engine.
  • the access switches (2) and (3) one can use the oscillation type sensing the access of a metal, or the Hall element type sensing the access of a magnetic material or the like.
  • the present invention relates to an advance control system of a low voltage distribution system without a high voltage distribution effected through a distributor and makes it possible to control the ignition timing highly stably with an extremely accuracy by providing reference ignition signals with predetermined angle widths from positions of a crank shaft through a plurality of access switches but not from positions of rotation of a rotary shaft of a distributor. Therefore the practical merit is extremely great.
  • the present invention is not restricted to an ignition timing control apparatus having a negative pressure sensor adopted as a sensor for sensing the operating status of an engine but it is equally applicable to ignition timing control apparatus inputted with a signal from the sensor for a temperature of cooling water, the atmospheric pressure, the air temperature or the like to control the ignition timing.
  • the number of cylinders of an engine there is no limitation and one can cope with six- or eight-cylinder engines by increasing the number of access switches and increasing the number of ignition coils. That is, three access switches and three ignition coils may be used with six-cylinder engines and four access switches and four ignition coils may be used with eight-cylinder engines thereby to realize similar affairs as in the four-cylinder engine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Ignition Timing (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
EP19800901486 1979-08-07 1981-02-24 Vorrichtung zum regeln der zündzeitpunktverstellung. Withdrawn EP0033748A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP100994/79 1979-08-07
JP10099479A JPS5627068A (en) 1979-08-07 1979-08-07 Ignition timing controller

Publications (2)

Publication Number Publication Date
EP0033748A1 true EP0033748A1 (de) 1981-08-19
EP0033748A4 EP0033748A4 (de) 1982-01-08

Family

ID=14288851

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800901486 Withdrawn EP0033748A4 (de) 1979-08-07 1981-02-24 Vorrichtung zum regeln der zündzeitpunktverstellung.

Country Status (3)

Country Link
EP (1) EP0033748A4 (de)
JP (1) JPS5627068A (de)
WO (1) WO1981000433A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0361691A3 (en) * 1988-09-29 1990-11-07 Ford Motor Company Limited Ignition system with enhanced combustion and fault tolerance

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372273A (en) * 1981-04-01 1983-02-08 The Bendix Corporation Quadrature trigger system for sequential fuel injection
US4483293A (en) * 1982-04-06 1984-11-20 Mitsubishi Denki Kabushiki Kaisha Ignition time control device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5443648B2 (de) * 1973-02-27 1979-12-21
GB1420814A (en) * 1973-04-06 1976-01-14 Lumenition Ltd Ignition timing for internal combustion engines
JPS5110231A (en) * 1974-07-15 1976-01-27 Hitachi Ltd Nainenkikanno tenkajikichishinkakuseigyosochi
DE2512166C2 (de) * 1975-03-20 1982-01-14 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zum Festlegen eines sich wiederholenden Vorganges, insbesondere Zündvorganges, und Vorrichtung zur Durchführung des Verfahrens
JPS5949430B2 (ja) * 1975-10-30 1984-12-03 株式会社デンソー テンカジキセツテイソウチ
JPS5368330A (en) * 1976-12-01 1978-06-17 Hitachi Ltd Non-contact igniter
JPS586064B2 (ja) * 1976-12-03 1983-02-02 株式会社デンソー 内燃機関用点火装置の制御方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO8100433A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0361691A3 (en) * 1988-09-29 1990-11-07 Ford Motor Company Limited Ignition system with enhanced combustion and fault tolerance

Also Published As

Publication number Publication date
EP0033748A4 (de) 1982-01-08
WO1981000433A1 (fr) 1981-02-19
JPS5627068A (en) 1981-03-16

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19810331

AK Designated contracting states

Designated state(s): DE FR GB

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19850926

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MIYAZAKI, MASAAKIMITSUBISHI DENKI K.K.

Inventor name: UEDA, ATSUSHIMITSUBISHI DENKI K.K.

Inventor name: ISHII, MITSUAKIMITSUBISHI DENKI K.K.

Inventor name: ITO, HISATSUGO MITSUBISHI DENKI K.K.