GB1436013A - Switching circuitry for sequential fuel injection - Google Patents

Switching circuitry for sequential fuel injection

Info

Publication number
GB1436013A
GB1436013A GB2829973A GB2829973A GB1436013A GB 1436013 A GB1436013 A GB 1436013A GB 2829973 A GB2829973 A GB 2829973A GB 2829973 A GB2829973 A GB 2829973A GB 1436013 A GB1436013 A GB 1436013A
Authority
GB
United Kingdom
Prior art keywords
flip
gates
signals
degrees
fuel injection
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
GB2829973A
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.)
Navistar Inc
Original Assignee
International Harverster 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 International Harverster Corp filed Critical International Harverster Corp
Publication of GB1436013A publication Critical patent/GB1436013A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/62—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors
    • H03K17/6285—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors with several outputs only combined with selecting means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/32—Controlling fuel injection of the low pressure type
    • F02D41/36—Controlling fuel injection of the low pressure type with means for controlling distribution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2031—Control of the current by means of delays or monostable multivibrators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2044—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using pre-magnetisation or post-magnetisation of the coils
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

1436013 IC engine fuel injection systems INTERNATIONAL HARVESTER CO 14 June 1973 [21 June 1972] 28299/73 Heading G3N An 8-cylinder I.C. engine fuel injection control system comprises means for supplying sequencing signals in synchronized relation to the intake strokes of the enginge and, for each group of 4 cylinders, four driver stages coupled to the injector valve actuators, four AND gates having outputs connected to the driver stages, a flip-flop triggered to a first state at approximately the beginnings of the intake strokes of the four cylinders and to a second state at controlled times varying from less than 90 degrees to greater than 90 degrees of engine crank-shaft rotation following the beginnings of the intake strokes, the output of the flip-flop being coupled to the inputs of the four AND gates to supply a series of four timing signals thereto during each 720 degrees of engine crank-shaft rotation, and means responsive to sequencing signals to supply four control signals to additional inputs of the four AND gates, each of the four control signals having a duration of approximately 180 degrees of engine crank-shaft rotation, and the flip-flops of the two groups of four cylinders being operative to develop first and second series of timing signals in 90 degrees phase displaced relation. As shown in Fig. 1, the sequencing signals are derived from a counter 180 triggered by a sensor 184 and a circuit 183, an octal de-coder 179 providing eight output signals on lines 171-178, the lines being connected in pairs to OR gates 161-168 whose outputs are connected to the additional inputs of the AND gates 151-158. Each flip-flop 149, 150 is set by a respective OR gate consisting of diodes 187 or 188 and is reset by a respective timer 189, 190 after a period of time determined by the output of a computer (not shown) on line 191. The set time of the flip-flops determines the injection duration of the appropriate valve in the sequence determined by the OR and AND gates. The flip-flops and timers may be arranged differently as described with reference to Fig. 3 (not shown). Also described with reference to Fig. 4 (not shown) are diodes (271)-(278) connected between the lines 171-178 and the drivers 141-148 for providing pre-bias and post-bias of the valve actuators 131-138, and a pair of electronic switches (261), (262) and a pair of monostable multi-vibrators (263), (264) for applying an increased current to the actuators for providing rapid opening of the valves. Details of the driver circuits are described with reference to Fig. 6 (not shown) and of the electronic switches and monostable multi-vibrators with reference to Fig. 7 (not shown).
GB2829973A 1972-06-21 1973-06-14 Switching circuitry for sequential fuel injection Expired GB1436013A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00265047A US3820198A (en) 1972-06-21 1972-06-21 Switching circuitry for sequential fuel injection

Publications (1)

Publication Number Publication Date
GB1436013A true GB1436013A (en) 1976-05-19

Family

ID=23008730

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2829973A Expired GB1436013A (en) 1972-06-21 1973-06-14 Switching circuitry for sequential fuel injection

Country Status (6)

Country Link
US (1) US3820198A (en)
JP (1) JPS4950328A (en)
CA (1) CA993979A (en)
FR (1) FR2189639B1 (en)
GB (1) GB1436013A (en)
IT (1) IT985675B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50111439A (en) * 1974-02-13 1975-09-02
DE2507138C2 (en) * 1975-02-19 1984-08-23 Robert Bosch Gmbh, 7000 Stuttgart Method and device for obtaining a measured variable which indicates the approximation of a predetermined lean running limit during the operation of an internal combustion engine
DE2507137A1 (en) * 1975-02-19 1976-09-02 Bosch Gmbh Robert METHOD AND DEVICE FOR CONTROLLING THE OPERATING BEHAVIOR OF AN INDUSTRIAL POWER MACHINE
DE2507057A1 (en) * 1975-02-19 1976-09-02 Bosch Gmbh Robert METHOD AND DEVICE FOR DETERMINING THE RUNNING OF AN COMBUSTION ENGINE
US4058709A (en) * 1975-11-06 1977-11-15 Allied Chemical Corporation Control computer for fuel injection system
IT1191061B (en) * 1982-10-29 1988-02-24 Alfa Romeo Auto Spa ELECTRONIC DEVICE FOR INJECTION CONTROL OF A C.I. ENGINE PLURICILNDRICO
JPS6098146A (en) * 1983-11-02 1985-06-01 Nippon Soken Inc Fuel control method of internal-combustion engine
DE3616355A1 (en) * 1986-05-15 1987-11-19 Vdo Schindling METHOD FOR CONTROLLING AN INJECTION VALVE
US4965694A (en) * 1989-03-30 1990-10-23 Square D Company Remote controlled circuit breaker system
US20110174242A1 (en) * 2010-04-09 2011-07-21 Mcconahay Fred E Cylindrical hydrogen fuel generator having tubular cells with microscopic indentations
DE102011088497A1 (en) * 2011-12-14 2013-06-20 Robert Bosch Gmbh Method for operating a multi-fuel internal combustion engine by means of two control units and operating according to the inventive method multi-fuel internal combustion engine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1394725A (en) * 1962-06-07 1965-04-09 Ass Eng Ltd Fuel injection arrangements for internal combustion engines
DE2039487A1 (en) * 1970-08-08 1972-02-10 Bosch Gmbh Robert Triggering device for an electronically controlled fuel injection system for internal combustion engines

Also Published As

Publication number Publication date
JPS4950328A (en) 1974-05-16
CA993979A (en) 1976-07-27
FR2189639A1 (en) 1974-01-25
IT985675B (en) 1974-12-10
US3820198A (en) 1974-06-28
FR2189639B1 (en) 1976-09-17
DE2331264A1 (en) 1974-01-10
DE2331264B2 (en) 1977-03-10

Similar Documents

Publication Publication Date Title
GB1272595A (en) Fuel injection systems
GB1436013A (en) Switching circuitry for sequential fuel injection
GB1261223A (en) Improvements in or relating to fuel injection systems for internal combustion engines
GB1252070A (en)
GB1352674A (en) Deceleration control circuit for an internal combustion engine fuel control system
GB1233639A (en)
GB1298763A (en) Fuel injection system for an internal combustion engine
GB1474592A (en) Device for controlling the instant of ignition in ignition systems of internal combustion engines
GB1436012A (en) Synchronizing means for sequential fuel injection
GB1329630A (en) Internal combustion engine fuel control system
GB998900A (en) Analog-to-digital converter
GB1273458A (en) An electronically controlled fuel injection system
GB1266974A (en)
GB1042140A (en) Improvements in or relating to pulse train generators
GB1132549A (en) Improvements relating to ignition systems for internal-combustion engines
GB1078278A (en) Improvements in fuel injection systems
ES468987A1 (en) Pulse time addition circuit for electronic fuel injection systems
GB986148A (en) Synchronized signal pulse circuit
US2934050A (en) Driver circuit for fuel injector
GB1325988A (en) Electrically controlled fuel in injection systems
GB905086A (en) Improvements in or relating to fuel injection system for internal combustion engines
GB1353900A (en) Engine controlsystems
GB1482194A (en) Engine fuel control system
GB1292565A (en) A fuel supply control system having acceleration compensation
GB1023928A (en) Spark ignition apparatus for internal combustion engines

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee