JPS5549540A - Electronic fuel injection device - Google Patents

Electronic fuel injection device

Info

Publication number
JPS5549540A
JPS5549540A JP12284878A JP12284878A JPS5549540A JP S5549540 A JPS5549540 A JP S5549540A JP 12284878 A JP12284878 A JP 12284878A JP 12284878 A JP12284878 A JP 12284878A JP S5549540 A JPS5549540 A JP S5549540A
Authority
JP
Japan
Prior art keywords
sensor
air flow
air temperature
flow sensor
suction air
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
JP12284878A
Other languages
Japanese (ja)
Inventor
Yasunori Mori
Toshio Furuhashi
Osamu Abe
Taiji Hasegawa
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
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12284878A priority Critical patent/JPS5549540A/en
Publication of JPS5549540A publication Critical patent/JPS5549540A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE: To hold the constant performance of operation even when troubled by composing the device so that the hot-wire air flow sensor can be changed to the suction air temperature correction sensor, which is an equivalent element to the former and can be changed to the fixed resistance in lieu of the suction air temperature sensor.
CONSTITUTION: Output of the hot-wire air flow sensor 12 set in the throttle chamber is fed to the multiplexer 54 through the processing circuit 59. When the air flow sensor is burned out, a signal is provided from the MPU50 to the I/O-LSI53 to apply voltage to the terminal 78. Then the relay winding 71 is energized, the respective contacts 66W70 are turned to the connection opposite to ones shown in Figure. By this, said sensor 12 is disconnected, the suction air temperature correction sensor 63 is connected so that it may be used in place of the former. At this time, the alarm lamp 61 is lighted to inform the operator that a trouble is caused.
COPYRIGHT: (C)1980,JPO&Japio
JP12284878A 1978-10-04 1978-10-04 Electronic fuel injection device Pending JPS5549540A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12284878A JPS5549540A (en) 1978-10-04 1978-10-04 Electronic fuel injection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12284878A JPS5549540A (en) 1978-10-04 1978-10-04 Electronic fuel injection device

Publications (1)

Publication Number Publication Date
JPS5549540A true JPS5549540A (en) 1980-04-10

Family

ID=14846126

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12284878A Pending JPS5549540A (en) 1978-10-04 1978-10-04 Electronic fuel injection device

Country Status (1)

Country Link
JP (1) JPS5549540A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57126526A (en) * 1981-01-30 1982-08-06 Japan Electronic Control Syst Co Ltd Electronically-controlled fuel injector
US4414949A (en) * 1978-05-09 1983-11-15 Robert Bosch Gmbh Apparatus for the control of repetitive events dependent on operating parameters of internal combustion engines
JPS607937A (en) * 1983-06-24 1985-01-16 Mitsui Mining Co Ltd Preparation of adsorbent for heavy metal

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414949A (en) * 1978-05-09 1983-11-15 Robert Bosch Gmbh Apparatus for the control of repetitive events dependent on operating parameters of internal combustion engines
JPS57126526A (en) * 1981-01-30 1982-08-06 Japan Electronic Control Syst Co Ltd Electronically-controlled fuel injector
JPS607937A (en) * 1983-06-24 1985-01-16 Mitsui Mining Co Ltd Preparation of adsorbent for heavy metal
JPH0325220B2 (en) * 1983-06-24 1991-04-05 Mitsui Mining Co Ltd

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