GB1300373A - Electronic control system for internal combustion engine injectors - Google Patents

Electronic control system for internal combustion engine injectors

Info

Publication number
GB1300373A
GB1300373A GB10170A GB10170A GB1300373A GB 1300373 A GB1300373 A GB 1300373A GB 10170 A GB10170 A GB 10170A GB 10170 A GB10170 A GB 10170A GB 1300373 A GB1300373 A GB 1300373A
Authority
GB
United Kingdom
Prior art keywords
transistor
capacitor
becomes conductive
vibrator
voltage
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
GB10170A
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.)
Societe des Procedes Modernes dInjection SOPROMI
Original Assignee
Societe des Procedes Modernes dInjection SOPROMI
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
Priority claimed from FR57392A external-priority patent/FR1485621A/en
Priority claimed from FR85951A external-priority patent/FR92816E/en
Priority claimed from FR86830A external-priority patent/FR93062E/en
Application filed by Societe des Procedes Modernes dInjection SOPROMI filed Critical Societe des Procedes Modernes dInjection SOPROMI
Publication of GB1300373A publication Critical patent/GB1300373A/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
    • 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
    • F02D41/20—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
    • F02D2041/2068—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements
    • F02D2041/2075—Type of transistors or particular use thereof

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)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

1300373 Controlling fuel injection electrically SOC DES PROCEDES MODERNES D'INJECTION SOPROMI 1 Jan 1970 [12 Feb 1969] 101/70 Addition to 1192201 Heading G1N [Also in Division H3] In an improvement of the fuel injection control device claimed in claims 1 and 2 of the Specification, 1192201 the uni-junction transistors T805 forming part of the delay element has its emitter connected firstly by way of resistors 802a, 802b, to the junction of resistor 802 and capacitor 806 connected to the collector of the transistor T710 of the bi-stable multi-vibrator, and secondly to the emitter of a transistor T855 adapted to block the bi-stable multi-vibrator. In operation, a negative pulse, initiated in accordance with engine rotation, is applied to the base of transistor T710 to thereby render T710 and T705 conductive. At this instant capacitor 806 is charged until the voltage on 806 and the voltage V B2 , representative of an engine operating parameter, have a predetermined proportionality, when T805 becomes conductive causing capacitor 806 to discharge quickly since the transistor T855 also becomes conductive. When T855 becomes conductive, T705 is returned to its blocked state. Diode 856 prevents modification in the injection duration produced by a modification in the frequency of operation, and may be a constant intensity diode or may be replaced by an equivalent arrangement such as transistors operating as generators under constant intensity conditions.
GB10170A 1966-04-13 1970-01-01 Electronic control system for internal combustion engine injectors Expired GB1300373A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR57392A FR1485621A (en) 1966-04-13 1966-04-13 Enhancements to electronic injector devices and injectors used with these devices
FR85951A FR92816E (en) 1966-04-13 1966-12-02 Development of electronic injector devices and injectors used with these devices.
FR86830A FR93062E (en) 1966-04-13 1966-12-09 Improvements to electronic injection devices and injectors used with these devices.
FR6903274A FR2031364A6 (en) 1966-04-13 1969-02-12

Publications (1)

Publication Number Publication Date
GB1300373A true GB1300373A (en) 1972-12-20

Family

ID=35033552

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10170A Expired GB1300373A (en) 1966-04-13 1970-01-01 Electronic control system for internal combustion engine injectors

Country Status (3)

Country Link
DE (1) DE2000881A1 (en)
FR (1) FR2031364A6 (en)
GB (1) GB1300373A (en)

Also Published As

Publication number Publication date
FR2031364A6 (en) 1970-11-20
DE2000881A1 (en) 1970-09-03

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee