JPS5544934A - Top dead point detector for engine - Google Patents

Top dead point detector for engine

Info

Publication number
JPS5544934A
JPS5544934A JP11828678A JP11828678A JPS5544934A JP S5544934 A JPS5544934 A JP S5544934A JP 11828678 A JP11828678 A JP 11828678A JP 11828678 A JP11828678 A JP 11828678A JP S5544934 A JPS5544934 A JP S5544934A
Authority
JP
Japan
Prior art keywords
pressure
pulse
top dead
dead point
signals
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
JP11828678A
Other languages
Japanese (ja)
Other versions
JPS6363850B2 (en
Inventor
Toshiaki Motoi
Shinobu Ishiyama
Akio Takamura
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
Ono Sokki Co Ltd
Original Assignee
Toyota Motor Corp
Ono Sokki Co Ltd
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, Ono Sokki Co Ltd filed Critical Toyota Motor Corp
Priority to JP11828678A priority Critical patent/JPS5544934A/en
Publication of JPS5544934A publication Critical patent/JPS5544934A/en
Publication of JPS6363850B2 publication Critical patent/JPS6363850B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measuring Fluid Pressure (AREA)
  • Testing Of Engines (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

PURPOSE: To precisely detect the top dead point of an engine by taking into consideration of pressure propagation delay from a pressure generating source in a cylinder to the pressure receiving surface of a pressure gage to accurately specify the abscissa axis and accordingly the cranking angle in a pressure diagram.
CONSTITUTION: An arithmetic unit 13 reads a pressure signal from a sample- holding circuit 8 at every cranking angle pulse on the basis of a pulse signal from a multiplier 11 to select three pressure signals varying in crest shape at its level. A quadratic curve is obtained on the basis of these signals with the pulse train of the pulse signals as an independent variable and the pressure level as dependent variable to thereby specify the myltiplying pulse corresponding to the maximum pressure level on the curve. This specified pulses are counted by a counter 12 to thus allow the unit 13 to immediately notify the delayed cranking angle from the top dead point corresponding thereto.
COPYRIGHT: (C)1980,JPO&Japio
JP11828678A 1978-09-26 1978-09-26 Top dead point detector for engine Granted JPS5544934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11828678A JPS5544934A (en) 1978-09-26 1978-09-26 Top dead point detector for engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11828678A JPS5544934A (en) 1978-09-26 1978-09-26 Top dead point detector for engine

Publications (2)

Publication Number Publication Date
JPS5544934A true JPS5544934A (en) 1980-03-29
JPS6363850B2 JPS6363850B2 (en) 1988-12-08

Family

ID=14732899

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11828678A Granted JPS5544934A (en) 1978-09-26 1978-09-26 Top dead point detector for engine

Country Status (1)

Country Link
JP (1) JPS5544934A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5734404A (en) * 1980-08-11 1982-02-24 Nissan Motor Co Ltd Detecting device for crank position in internal-combustion engine
JPS6025434A (en) * 1983-07-22 1985-02-08 Mazda Motor Corp Crank angle detector for engine
US5153834A (en) * 1986-09-10 1992-10-06 Nissan Motor Co., Ltd. Method and apparatus for detecting a misfire in a combustion chamber of an internal combustion engine
JP2002364164A (en) * 2001-06-08 2002-12-18 Fukuvi Chem Ind Co Ltd Panel pressing unit, decorative wall body and construction method of decorative panel
JP2012112316A (en) * 2010-11-25 2012-06-14 Isuzu Motors Ltd Cylinder internal pressure waveform processing device
JP2013124655A (en) * 2011-12-16 2013-06-24 Toyota Motor Corp Control device of internal combustion engine
JP2013241870A (en) * 2012-05-18 2013-12-05 Denso Corp Ad conversion processing device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5734404A (en) * 1980-08-11 1982-02-24 Nissan Motor Co Ltd Detecting device for crank position in internal-combustion engine
JPS6025434A (en) * 1983-07-22 1985-02-08 Mazda Motor Corp Crank angle detector for engine
JPH0319500B2 (en) * 1983-07-22 1991-03-15 Mazda Motor
US5153834A (en) * 1986-09-10 1992-10-06 Nissan Motor Co., Ltd. Method and apparatus for detecting a misfire in a combustion chamber of an internal combustion engine
JP2002364164A (en) * 2001-06-08 2002-12-18 Fukuvi Chem Ind Co Ltd Panel pressing unit, decorative wall body and construction method of decorative panel
JP2012112316A (en) * 2010-11-25 2012-06-14 Isuzu Motors Ltd Cylinder internal pressure waveform processing device
JP2013124655A (en) * 2011-12-16 2013-06-24 Toyota Motor Corp Control device of internal combustion engine
JP2013241870A (en) * 2012-05-18 2013-12-05 Denso Corp Ad conversion processing device

Also Published As

Publication number Publication date
JPS6363850B2 (en) 1988-12-08

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