GB1428353A - Fuel feed control device for internal combustion engine - Google Patents

Fuel feed control device for internal combustion engine

Info

Publication number
GB1428353A
GB1428353A GB2969675A GB2969675A GB1428353A GB 1428353 A GB1428353 A GB 1428353A GB 2969675 A GB2969675 A GB 2969675A GB 2969675 A GB2969675 A GB 2969675A GB 1428353 A GB1428353 A GB 1428353A
Authority
GB
United Kingdom
Prior art keywords
valve
coil
voltage
open
control means
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
GB2969675A
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to GB2969675A priority Critical patent/GB1428353A/en
Publication of GB1428353A publication Critical patent/GB1428353A/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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/2017—Output circuits, e.g. for controlling currents in command coils using means for creating a boost current or using reference switching
    • 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
    • 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
    • F02D2041/2072—Bridge circuits, i.e. the load being placed in the diagonal of a bridge to be controlled in both directions

Landscapes

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

Abstract

1428353 I C engine fuel injectors HITACHI Ltd 7 Feb 1973 Divided out of 1427995 29696/75 Heading F1B [Also in Division H3] The opening and closing times of an I.C. engine fuel injection valve which is opened by an electromagnetic coil are reduced by an arrangement comprising first control means for applying a voltage to one side of the coil when the valve is to be opened and second control means for applying the voltage to the other side of the coil when the valve is to be closed; third control means arranged to connect the other side of the coil to earth while the voltage is being applied to the one side so as to pass a current through the coil which is only sufficient to hold the valve open; fourth control means also arranged to connect the other side of the coil to earth, for a predetermined period, while the voltage is applied to the one side, so as to pass a current sufficient to open the valve; and fifth control means arranged to connect the one side of the coil to earth when the voltage is applied to the other side, so as to close the valve. Prior to opening of the valve, its solenoid winding 2 is energized via control transistors 5B and SE and a resistor 3, the resistor limiting the current to a value which is insufficient to open the valve but would be sufficient to hold the valve open if it were already open. When the valve is to be opened, a control pulse is applied to a transistor 5A to increase the current temporarily to a value which effects opening of the valve. Thereafter, the valve is held open by the current supplied via the transistors 5E and 5B. When the valve is to be closed, transistors 5E and 5B are turned off and at the same time transistors 5C and 5D are turned on briefly to provide a reverse voltage to assist the rapid collapse of the magnetic flux.
GB2969675A 1973-02-07 1973-02-07 Fuel feed control device for internal combustion engine Expired GB1428353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2969675A GB1428353A (en) 1973-02-07 1973-02-07 Fuel feed control device for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2969675A GB1428353A (en) 1973-02-07 1973-02-07 Fuel feed control device for internal combustion engine

Publications (1)

Publication Number Publication Date
GB1428353A true GB1428353A (en) 1976-03-17

Family

ID=10295660

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2969675A Expired GB1428353A (en) 1973-02-07 1973-02-07 Fuel feed control device for internal combustion engine

Country Status (1)

Country Link
GB (1) GB1428353A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150368A (en) * 1983-11-15 1985-06-26 Solex Fuel injection control apparatus
EP1701026A1 (en) * 2005-03-09 2006-09-13 Siemens Aktiengesellschaft Method for controlling a solenoid injector
CN116291929A (en) * 2023-04-27 2023-06-23 一汽解放汽车有限公司 Method and device for controlling electromagnetic valve of fuel injector, computer equipment and storage medium

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150368A (en) * 1983-11-15 1985-06-26 Solex Fuel injection control apparatus
EP1701026A1 (en) * 2005-03-09 2006-09-13 Siemens Aktiengesellschaft Method for controlling a solenoid injector
CN116291929A (en) * 2023-04-27 2023-06-23 一汽解放汽车有限公司 Method and device for controlling electromagnetic valve of fuel injector, computer equipment and storage medium
CN116291929B (en) * 2023-04-27 2024-06-04 一汽解放汽车有限公司 Method and device for controlling electromagnetic valve of fuel injector, computer equipment and storage medium

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930205