JPS55139937A - Suction air amount computing method of internal combustion engine - Google Patents

Suction air amount computing method of internal combustion engine

Info

Publication number
JPS55139937A
JPS55139937A JP4728379A JP4728379A JPS55139937A JP S55139937 A JPS55139937 A JP S55139937A JP 4728379 A JP4728379 A JP 4728379A JP 4728379 A JP4728379 A JP 4728379A JP S55139937 A JPS55139937 A JP S55139937A
Authority
JP
Japan
Prior art keywords
suction air
amount
air amount
combustion engine
internal combustion
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
JP4728379A
Other languages
Japanese (ja)
Inventor
Okimichi Okamoto
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.)
Hitachi Ltd
Original Assignee
Japan Electronic Control Systems 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 Japan Electronic Control Systems Co Ltd filed Critical Japan Electronic Control Systems Co Ltd
Priority to JP4728379A priority Critical patent/JPS55139937A/en
Publication of JPS55139937A publication Critical patent/JPS55139937A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
    • F02D41/187—Circuit arrangements for generating control signals by measuring intake air flow using a hot wire flow sensor

Landscapes

  • Engineering & Computer Science (AREA)
  • Measuring Volume Flow (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE:To compute an instantaneous amount of suction air sent pulsated without information of engine r.p.m by measuring the accurate amount of the suction air. CONSTITUTION:An output signal V of a suction air amount detector 11, that is a hot wire flow meter is sampled at intervals DELTAt per approximately 1ms by a sample hold circuit 12. The held signal is converted into digit t by a 12-bit A/D converter 13 and is then computed by a digital function converter 14. A simultaneous suction air amount obtained is multiplied by a valuecorresponding to the sampling time in a digital multiplier 15 to give a small amount DELTAQ of suction air. A one-turn signal P fed from a crank angle sensor 16 via an injection timing circuit 17 operates an integrated circuit 18, which computes to put the amount into a digital control circuit 19.
JP4728379A 1979-04-19 1979-04-19 Suction air amount computing method of internal combustion engine Pending JPS55139937A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4728379A JPS55139937A (en) 1979-04-19 1979-04-19 Suction air amount computing method of internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4728379A JPS55139937A (en) 1979-04-19 1979-04-19 Suction air amount computing method of internal combustion engine

Publications (1)

Publication Number Publication Date
JPS55139937A true JPS55139937A (en) 1980-11-01

Family

ID=12770957

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4728379A Pending JPS55139937A (en) 1979-04-19 1979-04-19 Suction air amount computing method of internal combustion engine

Country Status (1)

Country Link
JP (1) JPS55139937A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58150041A (en) * 1982-03-03 1983-09-06 Hitachi Ltd electronic fuel injection system
JPS61155641A (en) * 1984-12-27 1986-07-15 Nissan Motor Co Ltd Fuel injection amount control device
JPH01167433A (en) * 1987-12-23 1989-07-03 Hitachi Ltd Fuel injection controller for internal combustion engine
WO1991010821A1 (en) * 1990-01-19 1991-07-25 Siemens Aktiengesellschaft Mass air flow engine control system with mass air pulses integrator
WO1995002122A1 (en) * 1993-07-05 1995-01-19 Robert Bosch Gmbh Device for detecting a periodically changing value in synchronism with the crankshaft

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5543292A (en) * 1978-09-20 1980-03-27 Bosch Gmbh Robert Device for determining fuel quantity signal for internal combustion engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5543292A (en) * 1978-09-20 1980-03-27 Bosch Gmbh Robert Device for determining fuel quantity signal for internal combustion engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58150041A (en) * 1982-03-03 1983-09-06 Hitachi Ltd electronic fuel injection system
JPS61155641A (en) * 1984-12-27 1986-07-15 Nissan Motor Co Ltd Fuel injection amount control device
JPH01167433A (en) * 1987-12-23 1989-07-03 Hitachi Ltd Fuel injection controller for internal combustion engine
WO1991010821A1 (en) * 1990-01-19 1991-07-25 Siemens Aktiengesellschaft Mass air flow engine control system with mass air pulses integrator
WO1995002122A1 (en) * 1993-07-05 1995-01-19 Robert Bosch Gmbh Device for detecting a periodically changing value in synchronism with the crankshaft

Similar Documents

Publication Publication Date Title
EP0044873B1 (en) Apparatus for measuring air flow rate using hot-wire type air flowmeter
GB2031186A (en) Apparatus for providing a fuel metering signal in ic engines
JPS5517674A (en) Electronic engine controller
JPS5487308A (en) Knocking detector for internal combustion engine
JPS55141618A (en) Basic pulse operating system of hot-wire type flowmeter
JPS5560632A (en) Fuel consumption measuring apparatus
JPS55139938A (en) Suction air amount computing method of internal combustion engine
JPS5633511A (en) Device for measuring fuel consumption of internal combustion engine for vehicle
GB1381567A (en) Engine output measuring device
JPS5612024A (en) Electronic controlled fuel injection device
JPS5525509A (en) Device for detecting intake air amount in internal combustion engine
JPS5629171A (en) Measuring device of flow speed of thermal wire type for intercombustion engine
JPS56156435A (en) Control method of engine
JPS55148928A (en) Detecting circuit for negative pressure in intake manifold
JPS5773830A (en) Output pulse width operating method for driving fuel injection valve of internal combustion engine
SU767603A1 (en) Device for measuring specific fuel cinsumption of internal combustion engine
JPS55156829A (en) Fuel flowmeter
JPS5493717A (en) Electronic fuel feeder
JPS5465219A (en) Controller for internal combustion engine
SU1180727A1 (en) Device for measuring cyclic feed of fuel into internal combustion engine
JPS5229257A (en) Fuel consumption measuring equipment
JPS57179351A (en) Electronic control apparatus for internal combustion engine
JPS5734419A (en) Temperature measuring circuit for central electrode of sparking plug
JPS57104816A (en) Fuel consumption level measuring apparatus for diesel engine
JPS57122134A (en) Air fuel ratio control method for internal combustion engine