JPS5773830A - Output pulse width operating method for driving fuel injection valve of internal combustion engine - Google Patents

Output pulse width operating method for driving fuel injection valve of internal combustion engine

Info

Publication number
JPS5773830A
JPS5773830A JP14929980A JP14929980A JPS5773830A JP S5773830 A JPS5773830 A JP S5773830A JP 14929980 A JP14929980 A JP 14929980A JP 14929980 A JP14929980 A JP 14929980A JP S5773830 A JPS5773830 A JP S5773830A
Authority
JP
Japan
Prior art keywords
fuel injection
output
pulse width
valve
opening
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
JP14929980A
Other languages
Japanese (ja)
Inventor
Kenjiro Matsushita
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.)
NIHON DENSHI KIKI KK
Hitachi Unisia Automotive Ltd
Original Assignee
NIHON DENSHI KIKI KK
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 NIHON DENSHI KIKI KK, Japan Electronic Control Systems Co Ltd filed Critical NIHON DENSHI KIKI KK
Priority to JP14929980A priority Critical patent/JPS5773830A/en
Publication of JPS5773830A publication Critical patent/JPS5773830A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To maintain the mixture ratio at a prescribed value by operating an driving output pulse width of a fuel injection valve, by means of an output from a throttle valve opening detector and an output from a heat ray type air flowmeter, in case of an electronic control fuel injection device.
CONSTITUTION: A control circuit 11 connected to a heat ray 9 acts as a heat ray type air flowmeter signal 1 in accordance with a degree of opening of an throttle valve 6, and is converted together with an output of a transmitter 10 of a degree of opening of a throttle valve, by means of A/D converters 2, 2' in a control unit 12, and subsequently fed in a read-conversion mechanism 3 which converts a digital output voltage to an air flow. Being converted here to an air flow Q, this flow is jetted from a fuel injection valve 5. After the fuel injection pulse width is calculated in an output pulse width operation system 4 for driving a fuel injection valve. Since the reading of heat ray output 1 is converted to the actual air flow Q by means of the output of a detector 10 of a degree of valve opening acting as a parameter, a mixture ratio may be maintained at a prescribed value without being influenced by a degree of opening of the valve.
COPYRIGHT: (C)1982,JPO&Japio
JP14929980A 1980-10-27 1980-10-27 Output pulse width operating method for driving fuel injection valve of internal combustion engine Pending JPS5773830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14929980A JPS5773830A (en) 1980-10-27 1980-10-27 Output pulse width operating method for driving fuel injection valve of internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14929980A JPS5773830A (en) 1980-10-27 1980-10-27 Output pulse width operating method for driving fuel injection valve of internal combustion engine

Publications (1)

Publication Number Publication Date
JPS5773830A true JPS5773830A (en) 1982-05-08

Family

ID=15472121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14929980A Pending JPS5773830A (en) 1980-10-27 1980-10-27 Output pulse width operating method for driving fuel injection valve of internal combustion engine

Country Status (1)

Country Link
JP (1) JPS5773830A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4594987A (en) * 1984-02-27 1986-06-17 Mitsubishi Denki Kabushiki Kaisha Fuel injection control apparatus for internal combustion engine
US4716876A (en) * 1985-10-22 1988-01-05 Mitsubishi Denki Kabushiki Kaisha Fuel injection control system for internal combustion engine
US4719890A (en) * 1985-08-20 1988-01-19 Mitsubishi Denki Kabushiki Kaisha Fuel control apparatus for engine
US4757793A (en) * 1986-01-22 1988-07-19 Mitsubishi Denki Kabushiki Kaisha Fuel injection control system for internal combustion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4594987A (en) * 1984-02-27 1986-06-17 Mitsubishi Denki Kabushiki Kaisha Fuel injection control apparatus for internal combustion engine
US4719890A (en) * 1985-08-20 1988-01-19 Mitsubishi Denki Kabushiki Kaisha Fuel control apparatus for engine
US4716876A (en) * 1985-10-22 1988-01-05 Mitsubishi Denki Kabushiki Kaisha Fuel injection control system for internal combustion engine
US4757793A (en) * 1986-01-22 1988-07-19 Mitsubishi Denki Kabushiki Kaisha Fuel injection control system for internal combustion engine

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