FR2248457A1 - Test system for electro magnetic fuel injector valves - checks current peaks for a given time to determine if valve needle has moved - Google Patents

Test system for electro magnetic fuel injector valves - checks current peaks for a given time to determine if valve needle has moved

Info

Publication number
FR2248457A1
FR2248457A1 FR7346617A FR7346617A FR2248457A1 FR 2248457 A1 FR2248457 A1 FR 2248457A1 FR 7346617 A FR7346617 A FR 7346617A FR 7346617 A FR7346617 A FR 7346617A FR 2248457 A1 FR2248457 A1 FR 2248457A1
Authority
FR
France
Prior art keywords
moved
injector
given time
fuel injector
test system
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
FR7346617A
Other languages
English (en)
French (fr)
Other versions
FR2248457B3 (enrdf_load_stackoverflow
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2248457A1 publication Critical patent/FR2248457A1/fr
Application granted granted Critical
Publication of FR2248457B3 publication Critical patent/FR2248457B3/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • 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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
    • F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
    • 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
    • F02D2041/2055—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit with means for determining actual opening or closing time
    • 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
    • F02D2041/2058—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using information of the actual current value
    • 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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D2041/228—Warning displays

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Fuel-Injection Apparatus (AREA)
FR7346617A 1973-10-19 1973-12-27 Test system for electro magnetic fuel injector valves - checks current peaks for a given time to determine if valve needle has moved Granted FR2248457A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732352493 DE2352493A1 (de) 1973-10-19 1973-10-19 Verfahren und einrichtung zur pruefung von elektromagnetisch intermittierend betaetigbaren einspritzventilen

Publications (2)

Publication Number Publication Date
FR2248457A1 true FR2248457A1 (en) 1975-05-16
FR2248457B3 FR2248457B3 (enrdf_load_stackoverflow) 1976-10-22

Family

ID=5895885

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7346617A Granted FR2248457A1 (en) 1973-10-19 1973-12-27 Test system for electro magnetic fuel injector valves - checks current peaks for a given time to determine if valve needle has moved

Country Status (4)

Country Link
JP (1) JPS5066612A (enrdf_load_stackoverflow)
DE (1) DE2352493A1 (enrdf_load_stackoverflow)
FR (1) FR2248457A1 (enrdf_load_stackoverflow)
IT (1) IT1022933B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987005662A1 (en) * 1986-03-21 1987-09-24 Robert Bosch Gmbh Process for controlling the excitation time of electromagnetic systems, in particular electromagnetic valves in internal combustion engines

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2805175A1 (de) * 1978-02-08 1979-08-09 Bosch Gmbh Robert Einrichtung zum erfassen des spritzbeginns eines einspritzventils
JPS60122253A (ja) * 1983-12-07 1985-06-29 Yanmar Diesel Engine Co Ltd 内燃機関の電子制御装置
JPS62129557A (ja) * 1985-11-30 1987-06-11 Mitsubishi Heavy Ind Ltd 燃料ガス噴射弁作動不良検出装置
JPH0317173U (enrdf_load_stackoverflow) * 1989-06-29 1991-02-20
DE19529013C2 (de) * 1995-07-26 1999-09-30 Siemens Ag Verfahren zur Funktionsprüfung eines mechanischen Schaltelementes und Einrichtung zur Durchführung des Verfahrens
US8813723B2 (en) 2011-05-20 2014-08-26 GM Global Technology Operations LLC System and method for detecting a stuck fuel injector
DE102018213623A1 (de) * 2018-08-13 2020-02-13 Lenze Drives Gmbh Frequenzumrichter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987005662A1 (en) * 1986-03-21 1987-09-24 Robert Bosch Gmbh Process for controlling the excitation time of electromagnetic systems, in particular electromagnetic valves in internal combustion engines
US4856482A (en) * 1986-03-21 1989-08-15 Robert Bosch Gmbh Method of controlling the demagnetization phase of electromagnetic devices, especially of electromagnetic valves of combustion engines

Also Published As

Publication number Publication date
DE2352493A1 (de) 1975-04-24
JPS5066612A (enrdf_load_stackoverflow) 1975-06-05
FR2248457B3 (enrdf_load_stackoverflow) 1976-10-22
IT1022933B (it) 1978-04-20

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Legal Events

Date Code Title Description
ST Notification of lapse