JPS5626236A - Knocking intensity deciding device - Google Patents

Knocking intensity deciding device

Info

Publication number
JPS5626236A
JPS5626236A JP10095979A JP10095979A JPS5626236A JP S5626236 A JPS5626236 A JP S5626236A JP 10095979 A JP10095979 A JP 10095979A JP 10095979 A JP10095979 A JP 10095979A JP S5626236 A JPS5626236 A JP S5626236A
Authority
JP
Japan
Prior art keywords
primary
pulse
ignition
knocking
parts
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
JP10095979A
Other languages
Japanese (ja)
Inventor
Kenji Yoneda
Kunihiko Sugihara
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP10095979A priority Critical patent/JPS5626236A/en
Publication of JPS5626236A publication Critical patent/JPS5626236A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Engines (AREA)

Abstract

PURPOSE: To increase the accuracy of decision by securing a simultaneous detection of both the primary and secondary vibration components of the specific frequency due to the knocking out of the vibration of the engine main body and then deciding the knocking intensity from the ratio between the secondary and primary vibration components.
CONSTITUTION: The output of sensor 1 is extracted through high-pass filter 2; and the primary component output is extracted through low-pass filter 3 for the secondary vibration component output of the knocking to be compared with the background noise level signal sent from smoothing parts 4 and 5 each through comparing parts 6 and 7. In case the former output signal is larger than the latter one, the pulse signal sends the pulse to arithmetic part 10 through frequency detection parts 8 and 9 and when the value of integration exceeds the reference level. Part 10 carries out an ignition with lag angle and with 2 units or 1 unit via driving part 11 and according to the simultaneous supply of both the secondary and primary pulses or the supply of only the primary pulse. On the other hand, the ignition is given with angle advanced by a fixed extent in case no pulse is detected at all. In this way, the accuracy of decision can be increased, at the same time securing a proper moment of ignition.
COPYRIGHT: (C)1981,JPO&Japio
JP10095979A 1979-08-08 1979-08-08 Knocking intensity deciding device Pending JPS5626236A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10095979A JPS5626236A (en) 1979-08-08 1979-08-08 Knocking intensity deciding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10095979A JPS5626236A (en) 1979-08-08 1979-08-08 Knocking intensity deciding device

Publications (1)

Publication Number Publication Date
JPS5626236A true JPS5626236A (en) 1981-03-13

Family

ID=14287885

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10095979A Pending JPS5626236A (en) 1979-08-08 1979-08-08 Knocking intensity deciding device

Country Status (1)

Country Link
JP (1) JPS5626236A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6057233A (en) * 1983-09-09 1985-04-03 Hitachi Constr Mach Co Ltd Diagnostic device of output state of engine
JP2015219165A (en) * 2014-05-20 2015-12-07 株式会社小野測器 Device and method for detecting knocking
JP2016161454A (en) * 2015-03-03 2016-09-05 株式会社小野測器 Signal analyzer and knocking detector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6057233A (en) * 1983-09-09 1985-04-03 Hitachi Constr Mach Co Ltd Diagnostic device of output state of engine
JP2015219165A (en) * 2014-05-20 2015-12-07 株式会社小野測器 Device and method for detecting knocking
JP2016161454A (en) * 2015-03-03 2016-09-05 株式会社小野測器 Signal analyzer and knocking detector

Similar Documents

Publication Publication Date Title
JPS5458112A (en) Electronic controller for internal combustion engine
JPS55143428A (en) Knocking discriminating unit
JPS5519978A (en) Ignition time controller
JPS5761849A (en) Speed change gear position detector
JPS56115855A (en) Method and apparatus for controlling ignition timing of engine
JPS54141929A (en) Ignition time controller for internal combustion engine
JPS5626236A (en) Knocking intensity deciding device
JPS54103911A (en) Knock detector and ignition time controller for internal combustion engine
JPS53143378A (en) Speed counting system
JPS57110850A (en) Neutral decision device
JPS5544934A (en) Top dead point detector for engine
JPS555468A (en) Ignition time controller for engine
JPS55156262A (en) Ignition lead angle controller
JPS56636A (en) Knocking detecting unit for internal combustion engine
JPS5612024A (en) Electronic controlled fuel injection device
JPS555469A (en) Ignition time controller
JPS57179371A (en) Ignition timing control device for internal-combustion engine
JPS56162264A (en) Ignition timing controller
JPS5798835A (en) Knocking detecting device for internal combustion engine
JPS6454227A (en) Knocking detector for engine
JPS5664621A (en) Detecting device of knocking in internal combustion engine
JPS55112541A (en) Jet pressure detection unit
JPS56554A (en) Ignition timing device for internal combustion engine
JPS5732065A (en) Ignition timing controller for engine
JPS56147037A (en) Knocking detector for internal combustion engine