FR2375592A1 - Procede et dispositif de controle des compressions d'un moteur dissymetrique - Google Patents

Procede et dispositif de controle des compressions d'un moteur dissymetrique

Info

Publication number
FR2375592A1
FR2375592A1 FR7721324A FR7721324A FR2375592A1 FR 2375592 A1 FR2375592 A1 FR 2375592A1 FR 7721324 A FR7721324 A FR 7721324A FR 7721324 A FR7721324 A FR 7721324A FR 2375592 A1 FR2375592 A1 FR 2375592A1
Authority
FR
France
Prior art keywords
compressions
current
controlling
wave
starter
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
FR7721324A
Other languages
English (en)
Other versions
FR2375592B1 (fr
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.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Publication of FR2375592A1 publication Critical patent/FR2375592A1/fr
Application granted granted Critical
Publication of FR2375592B1 publication Critical patent/FR2375592B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
    • G01L23/08—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically
    • G01L23/085—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically by measuring fluctuations of starter motor current or of battery voltage

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Engines (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

L'invention concerne le contrôle des compressions d'un moteur à partir de l'onde de courant du démarreur. Une pince ampèremétrique 14 détecte l'onde de courant du démarreur 13 lorsque celui-ci entraîne le moteur alors que l'alimentation en carburant ou l'allumage est coupé. Un circuit de restitution de la composante continue, 25, transmet cette onde à un intégrateur 50. Un comparateur 60 applique un signal au dispositif d'affichage 62 lorsque le rapport entre la crête de courant correspondant à la plus faible compression et celle correspondant à la plus forte compression est inférieur à une valeur prédéterminée. Application au contrôle des moteurs à combustion interne.
FR7721324A 1976-10-12 1977-07-11 Procede et dispositif de controle des compressions d'un moteur dissymetrique Granted FR2375592A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/731,209 US4062232A (en) 1976-10-12 1976-10-12 Testing compression in engines from starter motor current waveform

Publications (2)

Publication Number Publication Date
FR2375592A1 true FR2375592A1 (fr) 1978-07-21
FR2375592B1 FR2375592B1 (fr) 1980-07-18

Family

ID=24938549

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7721324A Granted FR2375592A1 (fr) 1976-10-12 1977-07-11 Procede et dispositif de controle des compressions d'un moteur dissymetrique

Country Status (9)

Country Link
US (1) US4062232A (fr)
JP (1) JPS5348105A (fr)
CA (1) CA1069178A (fr)
DE (1) DE2731249C3 (fr)
EG (1) EG12991A (fr)
FR (1) FR2375592A1 (fr)
GB (1) GB1540350A (fr)
IL (1) IL52371A (fr)
IT (1) IT1080682B (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2709128C2 (de) * 1977-03-02 1979-04-19 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zur Ermittlung eines der Kompression einer Brennkraftmaschine proportionalen Meßwertes
US4126037A (en) * 1977-11-17 1978-11-21 Rca Corporation Compression test using battery voltage waveform during cranking
JPS55132927A (en) * 1979-04-03 1980-10-16 Toyota Central Res & Dev Lab Inc Method and apparatus for measuring compression pressure fluctuation of multicylinder internal combustion engine
US4309900A (en) * 1980-04-18 1982-01-12 Sun Electric Corporation Apparatus for measurement and display of relative compression by cylinder
AT388457B (de) * 1986-11-25 1989-06-26 Avl Verbrennungskraft Messtech Verfahren und einrichtung zur pruefung einer brennkraftmaschine
SE466572B (sv) * 1990-04-23 1992-03-02 Volvo Ab Maetfoerfarande vid fordon, saerskilt foer bestaemning av rotationshastigheten hos en vevaxel i en foerbraenningsmotor
DE19529708C1 (de) * 1995-08-11 1997-01-02 Siemens Ag Verfahren und Einrichtung zur Ermittlung der relativen Kompression einer Brennkraftmaschine
US5663493A (en) * 1996-05-17 1997-09-02 Fluke Corporation Apparatus and method for measuring relative compression
KR100295860B1 (ko) * 1997-10-30 2001-10-27 이계안 엔진의자가진단방법
US6185996B1 (en) 1997-11-14 2001-02-13 Cummins Engine Company, Inc. System and method for diagnosing output power of an internal combustion engine
US6553816B1 (en) * 1998-09-18 2003-04-29 Alliedsignal Inc. System and method for providing engine diagnostic and prognostic information
US7913546B2 (en) * 2008-11-25 2011-03-29 Innovative Products Of America, Inc. Methods and apparatus for analyzing internal combustion engines
US9188505B2 (en) * 2013-06-21 2015-11-17 Ford Global Technologies, Llc Method and system for cylinder compression diagnostics

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT313607B (de) * 1971-01-26 1974-02-25 List Hans Schaltungsanordnung zur Messung und Überprüfung der Kompression von Kolbenmaschinen
US3839906A (en) * 1973-10-09 1974-10-08 Rca Corp Apparatus for engine compression testing
US3952586A (en) * 1975-06-19 1976-04-27 Rca Corporation Determining engine compression from starter motor current

Also Published As

Publication number Publication date
FR2375592B1 (fr) 1980-07-18
US4062232A (en) 1977-12-13
DE2731249A1 (de) 1978-04-13
DE2731249B2 (de) 1981-01-15
IL52371A (en) 1980-02-29
IL52371A0 (en) 1977-08-31
CA1069178A (fr) 1980-01-01
DE2731249C3 (de) 1981-11-26
JPS5348105A (en) 1978-05-01
GB1540350A (en) 1979-02-07
IT1080682B (it) 1985-05-16
EG12991A (en) 1980-10-31
JPS5522611B2 (fr) 1980-06-18

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Legal Events

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