JPS5633556A - Noncontact measuring device for revolution number of gasoline engine car - Google Patents

Noncontact measuring device for revolution number of gasoline engine car

Info

Publication number
JPS5633556A
JPS5633556A JP10953779A JP10953779A JPS5633556A JP S5633556 A JPS5633556 A JP S5633556A JP 10953779 A JP10953779 A JP 10953779A JP 10953779 A JP10953779 A JP 10953779A JP S5633556 A JPS5633556 A JP S5633556A
Authority
JP
Japan
Prior art keywords
revolution
coils
detecting
signals
inputted
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.)
Pending
Application number
JP10953779A
Other languages
Japanese (ja)
Inventor
Kazuharu Nakano
Mitsuo Kamemoto
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor 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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP10953779A priority Critical patent/JPS5633556A/en
Priority to DE19803031156 priority patent/DE3031156A1/en
Publication of JPS5633556A publication Critical patent/JPS5633556A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/4802—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general
    • G01P3/4807—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general by using circuits for the detection of the pulses delivered by the ignition system of an internal combustion engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
    • F02P17/02—Checking or adjusting ignition timing
    • F02P17/04—Checking or adjusting ignition timing dynamically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
    • F02P2017/003—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines using an inductive sensor, e.g. trigger tongs

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Testing Of Engines (AREA)
  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

PURPOSE: To measure the number of revolution at high accuracy and easily by a method wherein detecting coils sensing the lines of magnetic force generated from ignition coils are attached outside an automobile, and the output signals are inputted to a correlative revolution-indicator through low-pass filters.
CONSTITUTION: Ignition coils for an engine and detecting coils 3, 4 sensing the lines of magnetic force generated from wiring at the primary side are installed parting from the fenders 2 of an automobile 1 by about 20cm at left and right locations on an inspection line. The signals are inputted to low-pass filters 8, 9 thrugh low noise amplifiers 6, 7, and these output is added by an analog adder 10, and inputted to a correlative revolution-indicator 12 computing the number of revolution from autocorrelation. Thus, high-frequency components in detecting signals are removed, only signals corresponding to the number of revolution are obtained while the difference of the detecting value of left and right coils due to the deviation of the car is eliminated, and the number of revolution can be measured accurately and easily.
COPYRIGHT: (C)1981,JPO&Japio
JP10953779A 1979-08-27 1979-08-27 Noncontact measuring device for revolution number of gasoline engine car Pending JPS5633556A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP10953779A JPS5633556A (en) 1979-08-27 1979-08-27 Noncontact measuring device for revolution number of gasoline engine car
DE19803031156 DE3031156A1 (en) 1979-08-27 1980-08-18 Contactless measurement of external ignition engine revolution rate - using coils detecting ignition coil magnetic field outside car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10953779A JPS5633556A (en) 1979-08-27 1979-08-27 Noncontact measuring device for revolution number of gasoline engine car

Publications (1)

Publication Number Publication Date
JPS5633556A true JPS5633556A (en) 1981-04-04

Family

ID=14512755

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10953779A Pending JPS5633556A (en) 1979-08-27 1979-08-27 Noncontact measuring device for revolution number of gasoline engine car

Country Status (2)

Country Link
JP (1) JPS5633556A (en)
DE (1) DE3031156A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127169A (en) * 1982-01-25 1983-07-28 Tokyo Tatsuno Co Ltd Tachometer for internal combustion engine
US5043659A (en) * 1989-12-18 1991-08-27 Clean Air Technologies Inc. Non-intrusive tachometer for spark ignition autos

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2579336B1 (en) * 1985-03-21 1988-05-27 Renault VEHICLE DIAGNOSIS DEVICE AT THE END OF THE MANUFACTURING CHAIN
EP2012130B1 (en) * 2006-04-06 2012-05-23 Oppama Industry Co., Ltd Engine rotating meter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5078364A (en) * 1973-11-09 1975-06-26

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811089A (en) * 1972-07-14 1974-05-14 Gen Motors Corp Remote engine tachometer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5078364A (en) * 1973-11-09 1975-06-26

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127169A (en) * 1982-01-25 1983-07-28 Tokyo Tatsuno Co Ltd Tachometer for internal combustion engine
JPS6157580B2 (en) * 1982-01-25 1986-12-08 Tokyo Tatsuno Kk
US5043659A (en) * 1989-12-18 1991-08-27 Clean Air Technologies Inc. Non-intrusive tachometer for spark ignition autos

Also Published As

Publication number Publication date
DE3031156A1 (en) 1981-03-19
DE3031156C2 (en) 1989-05-18

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