JPS5621033A - Signal discriminator - Google Patents

Signal discriminator

Info

Publication number
JPS5621033A
JPS5621033A JP9794279A JP9794279A JPS5621033A JP S5621033 A JPS5621033 A JP S5621033A JP 9794279 A JP9794279 A JP 9794279A JP 9794279 A JP9794279 A JP 9794279A JP S5621033 A JPS5621033 A JP S5621033A
Authority
JP
Japan
Prior art keywords
signal
voltage
pulse
comparator
generates
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
JP9794279A
Other languages
Japanese (ja)
Other versions
JPS633145B2 (en
Inventor
Yoichi Murata
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 JP9794279A priority Critical patent/JPS5621033A/en
Publication of JPS5621033A publication Critical patent/JPS5621033A/en
Publication of JPS633145B2 publication Critical patent/JPS633145B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Testing Of Engines (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

PURPOSE: To permit the ready pattern recognition of the signal without using a complicated computer or the like by discriminating the signals in consideration of the intensity of the voltage level of voltage signals and the generation order of them.
CONSTITUTION: A pressure sensor 1 generates the voltage signal based on the injection sound. Only when a fuel injection valve to which the pressure sensor 1 is installed injects fuel, a comparator 6 is supplied with the voltage signal having a voltage higher than its reference voltage before an ON signal is input to a strobe terminal 8, and generates a pulse wave. The pulse signal output from the comparator 6 is supplied to a monostable circuit 7 and shaped into a pulse signal having a proper pulse-width.
COPYRIGHT: (C)1981,JPO&Japio
JP9794279A 1979-07-30 1979-07-30 Signal discriminator Granted JPS5621033A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9794279A JPS5621033A (en) 1979-07-30 1979-07-30 Signal discriminator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9794279A JPS5621033A (en) 1979-07-30 1979-07-30 Signal discriminator

Publications (2)

Publication Number Publication Date
JPS5621033A true JPS5621033A (en) 1981-02-27
JPS633145B2 JPS633145B2 (en) 1988-01-22

Family

ID=14205716

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9794279A Granted JPS5621033A (en) 1979-07-30 1979-07-30 Signal discriminator

Country Status (1)

Country Link
JP (1) JPS5621033A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59160855U (en) * 1983-04-14 1984-10-27 日産自動車株式会社 Diesel engine fuel injection timing detection device
JP2012517556A (en) * 2009-02-10 2012-08-02 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Method for detecting needle valve closure in a piezo injector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59160855U (en) * 1983-04-14 1984-10-27 日産自動車株式会社 Diesel engine fuel injection timing detection device
JP2012517556A (en) * 2009-02-10 2012-08-02 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Method for detecting needle valve closure in a piezo injector

Also Published As

Publication number Publication date
JPS633145B2 (en) 1988-01-22

Similar Documents

Publication Publication Date Title
JPS5599522A (en) Combustion controller
JPS5621033A (en) Signal discriminator
JPS53132617A (en) Electronic type fuel supplying system
JPS5324925A (en) Electronic control system fuel injector
JPS53139018A (en) Electronic fuel injection equipment
JPS568916A (en) Unique word detecting circuit
JPS5247752A (en) Device for reading the maximum and minimum values of peak values of an alog signals
JPS5267219A (en) Pen touch type control circuit
JPS5521668A (en) Tone detection system
JPS5354418A (en) Detection system of double-depressin of key
JPS55153457A (en) Data signal reproducing unit
JPS5217129A (en) Carbreator
JPS536080A (en) Frequency detection circuit
JPS6436116A (en) Timing pulse generating circuit
JPS53130935A (en) Pattern recognition unit
JPS5416124A (en) Detection system for print completion
JPS5365529A (en) Rotation frequency detector for electronic controlling fuel injector
JPS6482822A (en) Muting control circuit
JPS5636204A (en) Noise erasing unit
JPS5331949A (en) Peak level detection circuit
JPS5793795A (en) Electronic signal controller
JPS54147883A (en) Abnormality detector of mechanical structures
JPS5510580A (en) Electronic time striking circuit
JPS562469A (en) Knocking detector
JPS57176360A (en) Control device of knock