JPS55148928A - Detecting circuit for negative pressure in intake manifold - Google Patents

Detecting circuit for negative pressure in intake manifold

Info

Publication number
JPS55148928A
JPS55148928A JP5674879A JP5674879A JPS55148928A JP S55148928 A JPS55148928 A JP S55148928A JP 5674879 A JP5674879 A JP 5674879A JP 5674879 A JP5674879 A JP 5674879A JP S55148928 A JPS55148928 A JP S55148928A
Authority
JP
Japan
Prior art keywords
negative pressure
intake manifold
engine
pressure sensor
output voltage
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
JP5674879A
Other languages
Japanese (ja)
Inventor
Masaaki Miyazaki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5674879A priority Critical patent/JPS55148928A/en
Publication of JPS55148928A publication Critical patent/JPS55148928A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To improve the responsibility in the detection of negative pressure, by providing an intake manifold negative pressure sensor and an engine rotation angle sensor and detecting the negative pressure of an intake manifold synchronously with the rotation of an engine.
CONSTITUTION: The negative pressure of the intake manifold of an internal combustion engine is change into an output voltage by a negative pressure sensor 1. An angle sensor 2 generates a pulse voltage synchronously with the rotation of the engine at such timing that the negative pressure of the intake manifold is equal to its mean value. A delay circuit 3 delays the pulse voltage by time equal to delayed time T for the negative pressure sensor 1. Since a sample-hold circuit 4 samples the output voltage of the negative pressure sensor 1 delayed by the time T, the output voltage of the sample-hold circuit is equal to the mean value of the output signal of the negative pressure sensor 1. The output voltage of the circuit 4 is applied as an intake manifold signal into an engine controller 5.
COPYRIGHT: (C)1980,JPO&Japio
JP5674879A 1979-05-07 1979-05-07 Detecting circuit for negative pressure in intake manifold Pending JPS55148928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5674879A JPS55148928A (en) 1979-05-07 1979-05-07 Detecting circuit for negative pressure in intake manifold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5674879A JPS55148928A (en) 1979-05-07 1979-05-07 Detecting circuit for negative pressure in intake manifold

Publications (1)

Publication Number Publication Date
JPS55148928A true JPS55148928A (en) 1980-11-19

Family

ID=13036136

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5674879A Pending JPS55148928A (en) 1979-05-07 1979-05-07 Detecting circuit for negative pressure in intake manifold

Country Status (1)

Country Link
JP (1) JPS55148928A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57200811A (en) * 1981-06-04 1982-12-09 Fuji Heavy Ind Ltd Crank angle detecting device
JPS5935644U (en) * 1982-08-31 1984-03-06 本田技研工業株式会社 Internal combustion engine intake pressure detection device
JPS6047839A (en) * 1983-08-26 1985-03-15 Toyota Motor Corp Method of detecting pressure in intake pipe of internal-combustion engine
JPS60204940A (en) * 1984-03-29 1985-10-16 Nippon Denso Co Ltd Electronic fuel injection control unit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4973182A (en) * 1972-09-27 1974-07-15

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4973182A (en) * 1972-09-27 1974-07-15

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57200811A (en) * 1981-06-04 1982-12-09 Fuji Heavy Ind Ltd Crank angle detecting device
JPS5935644U (en) * 1982-08-31 1984-03-06 本田技研工業株式会社 Internal combustion engine intake pressure detection device
JPS6047839A (en) * 1983-08-26 1985-03-15 Toyota Motor Corp Method of detecting pressure in intake pipe of internal-combustion engine
JPS60204940A (en) * 1984-03-29 1985-10-16 Nippon Denso Co Ltd Electronic fuel injection control unit

Similar Documents

Publication Publication Date Title
JPS55112861A (en) Ignition timing control device for internal combustion engine
GB1535449A (en) Ignition spark timing circuits for internal combustion engines
JPS5484142A (en) Ignition timing control system for internal combustion engine
JPS57137627A (en) Rotary sensor and its output processor
JPS55148928A (en) Detecting circuit for negative pressure in intake manifold
JPS5525588A (en) Ignition timing controller
JPS5560632A (en) Fuel consumption measuring apparatus
JPS55142942A (en) Fuel injection type engine
JPS57179370A (en) Ignition timing control system
JPS5360430A (en) Ignition device for internal combustion engine
JPS5638559A (en) Controlling method of ignition timing of internal combustion engine
JPS5423838A (en) Control method and device of ignition timing in engine
JPS5612024A (en) Electronic controlled fuel injection device
JPS5612054A (en) Magneto ignition device
JPS55112828A (en) Compensator of fuel increase for internal combustion engine
JPS555467A (en) Ignition time controller
JPS5641458A (en) Ignition device of internal combustion engine
JPS5465219A (en) Controller for internal combustion engine
JPS528237A (en) Electronic ignition timing adjustment system of engine
JPS53129740A (en) Ignition timing regulator for internal combustion engine
JPS56129760A (en) Ignition timing correcting system for internal combustion engine
JPS5738668A (en) Method of controlling ignition time of internal combustion engine
JPS55112864A (en) Magneto igniter
JPS5593957A (en) Driving device for fuel injection valve
JPS5316135A (en) Digital control device for ignition timing in internal combustion engine