JPS57103983A - Driving circuit for electromagnetic valve - Google Patents

Driving circuit for electromagnetic valve

Info

Publication number
JPS57103983A
JPS57103983A JP16666181A JP16666181A JPS57103983A JP S57103983 A JPS57103983 A JP S57103983A JP 16666181 A JP16666181 A JP 16666181A JP 16666181 A JP16666181 A JP 16666181A JP S57103983 A JPS57103983 A JP S57103983A
Authority
JP
Japan
Prior art keywords
saw tooth
pulses
pulse signal
pulse
electromagnetic valve
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.)
Granted
Application number
JP16666181A
Other languages
Japanese (ja)
Other versions
JPH0118314B2 (en
Inventor
Masaaki Saito
Yoshihisa Kawamura
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 JP16666181A priority Critical patent/JPS57103983A/en
Publication of JPS57103983A publication Critical patent/JPS57103983A/en
Publication of JPH0118314B2 publication Critical patent/JPH0118314B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Magnetically Actuated Valves (AREA)

Abstract

PURPOSE: To enabel the flow rate control with high accuracy, by lapping a high frequency pulse signal over an on-off pulse signal for opening or closing a valve.
CONSTITUTION: High frequency saw tooth waves 1a are generated by a saw tooth wave generating circuit 1, and the saw tooth waves 1a are converted by comparators 2, 3 acting as a duty ratio determining circuit into two pulses 2a, 3a having different duty ratios. In this case, both the pulses 2a, 3a are to have the same frequency as the saw tooth waves 1a, the duty ratio of the pulse 2a is to be high, and that of the other is to be low. On the other hand, the amount of sucked air and the rotational pulses of the engine are detected by an air amount detector 5 and a rotational pulse detector 4, and the time width of on-off of the electromagnetic valve driving pulse signals is culculated in a calculating circuit 6 to output a driving pulse signal 7a. Thus, the highly accurate flow rate control can be done.
COPYRIGHT: (C)1982,JPO&Japio
JP16666181A 1981-10-19 1981-10-19 Driving circuit for electromagnetic valve Granted JPS57103983A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16666181A JPS57103983A (en) 1981-10-19 1981-10-19 Driving circuit for electromagnetic valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16666181A JPS57103983A (en) 1981-10-19 1981-10-19 Driving circuit for electromagnetic valve

Publications (2)

Publication Number Publication Date
JPS57103983A true JPS57103983A (en) 1982-06-28
JPH0118314B2 JPH0118314B2 (en) 1989-04-05

Family

ID=15835387

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16666181A Granted JPS57103983A (en) 1981-10-19 1981-10-19 Driving circuit for electromagnetic valve

Country Status (1)

Country Link
JP (1) JPS57103983A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6023720A (en) * 1983-07-18 1985-02-06 Matsushita Electric Ind Co Ltd Combustion device
JPS61262278A (en) * 1985-05-15 1986-11-20 Kubota Ltd Solenoid valve control circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6023720A (en) * 1983-07-18 1985-02-06 Matsushita Electric Ind Co Ltd Combustion device
JPS61262278A (en) * 1985-05-15 1986-11-20 Kubota Ltd Solenoid valve control circuit

Also Published As

Publication number Publication date
JPH0118314B2 (en) 1989-04-05

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