FR2431704A1 - Diesel engine revolution counter for ignition control - uses electrical signal derived from mechanical vibration via monolithically mounted piezoelectric transducer - Google Patents

Diesel engine revolution counter for ignition control - uses electrical signal derived from mechanical vibration via monolithically mounted piezoelectric transducer

Info

Publication number
FR2431704A1
FR2431704A1 FR7808455A FR7808455A FR2431704A1 FR 2431704 A1 FR2431704 A1 FR 2431704A1 FR 7808455 A FR7808455 A FR 7808455A FR 7808455 A FR7808455 A FR 7808455A FR 2431704 A1 FR2431704 A1 FR 2431704A1
Authority
FR
France
Prior art keywords
electrical signal
mechanical vibration
diesel engine
piezoelectric transducer
signal derived
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
FR7808455A
Other languages
French (fr)
Other versions
FR2431704B1 (en
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.)
Automobiles Peugeot SA
Original Assignee
Automobiles Peugeot 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 Automobiles Peugeot SA filed Critical Automobiles Peugeot SA
Priority to FR7808455A priority Critical patent/FR2431704A1/en
Publication of FR2431704A1 publication Critical patent/FR2431704A1/en
Application granted granted Critical
Publication of FR2431704B1 publication Critical patent/FR2431704B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/08—Safety, indicating or supervising devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
    • G01P21/02—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

Mechanical vibration at frequencies linked with motor speed is detected in a monolithically mounted unit employing a piezo-electric transducer. The electrical signal is fed to a multi-stage active band pass filter and amplifier before passing through a limiter and shaper circuit. Following a voltage to frequency converter calibration is achieved by comparing the signal frequency with a range of presettable frequencies obtained from an oscillator circuit. The calibrator output is power amplified to drive a moving coil meter. The unreliability and inconvenience associated with revolution counters mechanically linked to an internal moving part is avoided in a device which may be mounted in a variety of accessible points on the vehicle. The system eliminates problems of wear and high voltage.
FR7808455A 1978-03-23 1978-03-23 Diesel engine revolution counter for ignition control - uses electrical signal derived from mechanical vibration via monolithically mounted piezoelectric transducer Granted FR2431704A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7808455A FR2431704A1 (en) 1978-03-23 1978-03-23 Diesel engine revolution counter for ignition control - uses electrical signal derived from mechanical vibration via monolithically mounted piezoelectric transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7808455A FR2431704A1 (en) 1978-03-23 1978-03-23 Diesel engine revolution counter for ignition control - uses electrical signal derived from mechanical vibration via monolithically mounted piezoelectric transducer

Publications (2)

Publication Number Publication Date
FR2431704A1 true FR2431704A1 (en) 1980-02-15
FR2431704B1 FR2431704B1 (en) 1981-10-30

Family

ID=9206203

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7808455A Granted FR2431704A1 (en) 1978-03-23 1978-03-23 Diesel engine revolution counter for ignition control - uses electrical signal derived from mechanical vibration via monolithically mounted piezoelectric transducer

Country Status (1)

Country Link
FR (1) FR2431704A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507250A1 (en) * 1981-06-04 1982-12-10 Fuji Heavy Ind Ltd DEVICE FOR MEASURING THE ANGULAR POSITION OF THE CRANKSHAFT OF AN INTERNAL COMBUSTION ENGINE
EP0952454A1 (en) * 1998-04-23 1999-10-27 DaimlerChrysler AG Rotational speed detection device for turbochargers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289077A (en) * 1963-07-12 1966-11-29 Yacht Haven Marina Diesel engine tachometer
US3983480A (en) * 1975-01-29 1976-09-28 Alston, Inc. Calibration circuit and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289077A (en) * 1963-07-12 1966-11-29 Yacht Haven Marina Diesel engine tachometer
US3983480A (en) * 1975-01-29 1976-09-28 Alston, Inc. Calibration circuit and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507250A1 (en) * 1981-06-04 1982-12-10 Fuji Heavy Ind Ltd DEVICE FOR MEASURING THE ANGULAR POSITION OF THE CRANKSHAFT OF AN INTERNAL COMBUSTION ENGINE
EP0952454A1 (en) * 1998-04-23 1999-10-27 DaimlerChrysler AG Rotational speed detection device for turbochargers
US6298728B1 (en) 1998-04-23 2001-10-09 Daimlerchrysler Ag Rotational turbocharger speed detector

Also Published As

Publication number Publication date
FR2431704B1 (en) 1981-10-30

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Legal Events

Date Code Title Description
ST Notification of lapse