FR2458106A1 - Control of variable flow of fluid - uses feedback from electro-valve drive amplifier to provide short circuit protection - Google Patents

Control of variable flow of fluid - uses feedback from electro-valve drive amplifier to provide short circuit protection

Info

Publication number
FR2458106A1
FR2458106A1 FR7913985A FR7913985A FR2458106A1 FR 2458106 A1 FR2458106 A1 FR 2458106A1 FR 7913985 A FR7913985 A FR 7913985A FR 7913985 A FR7913985 A FR 7913985A FR 2458106 A1 FR2458106 A1 FR 2458106A1
Authority
FR
France
Prior art keywords
output
fluid
amplifier
electro
short circuit
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.)
Granted
Application number
FR7913985A
Other languages
French (fr)
Other versions
FR2458106B1 (en
Inventor
Pierre Planteline
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.)
Thales SA
Original Assignee
Thomson CSF 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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7913985A priority Critical patent/FR2458106A1/en
Publication of FR2458106A1 publication Critical patent/FR2458106A1/en
Application granted granted Critical
Publication of FR2458106B1 publication Critical patent/FR2458106B1/fr
Granted 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
    • H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
    • H03K17/082—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
    • H03K17/0826—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit in bipolar transistor switches
    • 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
    • F02D2041/2051—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using voltage control
    • 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)

Abstract

The flow of fluid is varied by an electrovalve controlled by an electronic circuit operating in the all or nothing mode. The electronic circuit is protected against short circuiting of its output and is suitable for use in a motor vehicle fuel injection system. An electrovalve (3) winding (L) with a damping diode (D1) has one terminal connected to earth while the other is connected to an amplifier (1) output. The amplifier is driven from an AND gate (7) to which the input control signal (Ei) is applied. Feedback from the amplifier output is connected via a resistor (R2) to a second input on the gate. This resistor and a capacitor (C2) connected to both inputs on the gate acts as a differentiator to ensure that the amplifier output is high only for a brief time period when the output is short circuited.
FR7913985A 1979-05-31 1979-05-31 Control of variable flow of fluid - uses feedback from electro-valve drive amplifier to provide short circuit protection Granted FR2458106A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7913985A FR2458106A1 (en) 1979-05-31 1979-05-31 Control of variable flow of fluid - uses feedback from electro-valve drive amplifier to provide short circuit protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7913985A FR2458106A1 (en) 1979-05-31 1979-05-31 Control of variable flow of fluid - uses feedback from electro-valve drive amplifier to provide short circuit protection

Publications (2)

Publication Number Publication Date
FR2458106A1 true FR2458106A1 (en) 1980-12-26
FR2458106B1 FR2458106B1 (en) 1983-02-18

Family

ID=9226106

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7913985A Granted FR2458106A1 (en) 1979-05-31 1979-05-31 Control of variable flow of fluid - uses feedback from electro-valve drive amplifier to provide short circuit protection

Country Status (1)

Country Link
FR (1) FR2458106A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074536A2 (en) * 1981-09-10 1983-03-23 Robert Bosch Gmbh Electric commutation apparatus for a control device for a motor-driven vehicle
FR2515375A1 (en) * 1981-10-26 1983-04-29 Owens Illinois Inc CONTROL AND ALARM CIRCUIT WITH SHORT-CIRCUIT PROTECTION FOR A SOLENOID IN A GLAZED ARTICLE FORMING MACHINE
FR2527853A1 (en) * 1982-05-28 1983-12-02 Otis Elevator Co SYSTEM FOR PROTECTING INVERTER POWER TRANSISTORS, IN PARTICULAR FOR POWERING AN ELEVATOR MOTOR
EP0101850A2 (en) * 1982-07-23 1984-03-07 Robert Bosch Gmbh Safety apparatus for idling lorries
FR2556152A1 (en) * 1983-12-06 1985-06-07 Telemecanique Electrique CONTINUOUS CURRENT POWER CONTROL CIRCUIT WITH STATUS REPORTING AND OVERLOAD AND SHORT CIRCUIT PROTECTION
EP0150492A2 (en) * 1984-01-27 1985-08-07 Robert Bosch Gmbh Current regulator for electromagnetic actuator
FR2560933A1 (en) * 1984-03-10 1985-09-13 Lucas Ind Plc ELECTRONIC CONTROL DEVICE, IN PARTICULAR FOR A FUEL SYSTEM OF AN INTERNAL COMBUSTION ENGINE
WO1986002127A1 (en) * 1984-10-05 1986-04-10 Robert Bosch Gmbh Circuit arrangement for current control by an electrical, in particular electromagnetic, consumer
US4584645A (en) * 1982-07-23 1986-04-22 Robert Bosch Gmbh Emergency operation device for microcomputer-controlled systems
EP0195267A2 (en) * 1985-03-20 1986-09-24 Robert Bosch Gmbh Current control circuit for an electrical, preferably an electromagnetic load

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2213921B1 (en) * 1972-03-22 1973-08-09 Siemens Ag, 1000 Berlin U. 8000 Muenchen Electronic short-circuit-proof switch system
FR2307967A1 (en) * 1975-04-15 1976-11-12 Bosch Gmbh Robert ELECTRICAL CONTROL DEVICE WITH EARTH PROTECTION

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2213921B1 (en) * 1972-03-22 1973-08-09 Siemens Ag, 1000 Berlin U. 8000 Muenchen Electronic short-circuit-proof switch system
FR2307967A1 (en) * 1975-04-15 1976-11-12 Bosch Gmbh Robert ELECTRICAL CONTROL DEVICE WITH EARTH PROTECTION

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074536A2 (en) * 1981-09-10 1983-03-23 Robert Bosch Gmbh Electric commutation apparatus for a control device for a motor-driven vehicle
EP0074536A3 (en) * 1981-09-10 1983-08-03 Robert Bosch Gmbh Electric commutation apparatus for a control device for a motor-driven vehicle
FR2515375A1 (en) * 1981-10-26 1983-04-29 Owens Illinois Inc CONTROL AND ALARM CIRCUIT WITH SHORT-CIRCUIT PROTECTION FOR A SOLENOID IN A GLAZED ARTICLE FORMING MACHINE
US4394148A (en) * 1981-10-26 1983-07-19 Owens-Illinois, Inc. Short circuit proof driver and alarm circuit for a solenoid in a glassware forming machine
FR2527853A1 (en) * 1982-05-28 1983-12-02 Otis Elevator Co SYSTEM FOR PROTECTING INVERTER POWER TRANSISTORS, IN PARTICULAR FOR POWERING AN ELEVATOR MOTOR
EP0101850A2 (en) * 1982-07-23 1984-03-07 Robert Bosch Gmbh Safety apparatus for idling lorries
EP0101850A3 (en) * 1982-07-23 1984-08-01 Robert Bosch Gmbh Safety apparatus for idling lorries
US4584645A (en) * 1982-07-23 1986-04-22 Robert Bosch Gmbh Emergency operation device for microcomputer-controlled systems
EP0144273A1 (en) * 1983-12-06 1985-06-12 Telemecanique Direct current power control circuit with condition signalling and protection against overload and short-circuiting
FR2556152A1 (en) * 1983-12-06 1985-06-07 Telemecanique Electrique CONTINUOUS CURRENT POWER CONTROL CIRCUIT WITH STATUS REPORTING AND OVERLOAD AND SHORT CIRCUIT PROTECTION
EP0150492A2 (en) * 1984-01-27 1985-08-07 Robert Bosch Gmbh Current regulator for electromagnetic actuator
EP0150492A3 (en) * 1984-01-27 1985-09-25 Robert Bosch Gmbh Current regulator for electromagnetic actuator
FR2560933A1 (en) * 1984-03-10 1985-09-13 Lucas Ind Plc ELECTRONIC CONTROL DEVICE, IN PARTICULAR FOR A FUEL SYSTEM OF AN INTERNAL COMBUSTION ENGINE
WO1986002127A1 (en) * 1984-10-05 1986-04-10 Robert Bosch Gmbh Circuit arrangement for current control by an electrical, in particular electromagnetic, consumer
EP0195267A2 (en) * 1985-03-20 1986-09-24 Robert Bosch Gmbh Current control circuit for an electrical, preferably an electromagnetic load
EP0195267A3 (en) * 1985-03-20 1988-04-27 Robert Bosch Gmbh Current control circuit for an electrical, preferably an electromagnetic load

Also Published As

Publication number Publication date
FR2458106B1 (en) 1983-02-18

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Legal Events

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