JPS5612053A - Control method of spark advancement in rotational frequency for internal combustion engine - Google Patents

Control method of spark advancement in rotational frequency for internal combustion engine

Info

Publication number
JPS5612053A
JPS5612053A JP8727279A JP8727279A JPS5612053A JP S5612053 A JPS5612053 A JP S5612053A JP 8727279 A JP8727279 A JP 8727279A JP 8727279 A JP8727279 A JP 8727279A JP S5612053 A JPS5612053 A JP S5612053A
Authority
JP
Japan
Prior art keywords
capacitor
voltage
transistor
rotational frequency
prescribed
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
JP8727279A
Other languages
Japanese (ja)
Inventor
Hideyuki Makino
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.)
Denso Corp
Original Assignee
NipponDenso 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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP8727279A priority Critical patent/JPS5612053A/en
Publication of JPS5612053A publication Critical patent/JPS5612053A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrical Control Of Ignition Timing (AREA)

Abstract

PURPOSE: To attain rotational frequency spark advancement of good response through a simple circuit construction, by charging a capacitor within a prescribed rotation angle and directly using the peak voltage of the capacitor as a signal of a rotational function.
CONSTITUTION: When the output of a rotation sensor 1 rises to a high level, a transistor Q3 is instantaneously turned on to reset the charged electricity of a capacitor C2. After that, the capacitor C2 is charged throughout a prescribed angle in accordance with a charging curve based on the time constant determined by the capacitor C2 and a resistor R6. After that, the transistor Q2 is opened throughout a prescribed angle so that the peak voltage of the capacitor C2 is maintained. The capacitor C2 is then instantaneously discharged by another transistor Q3 at the time of the rising of a rotation angle signal. At that time, a voltage across a terminal (b) acts as a power voltage VB. The peak voltage of the capacitor C2, which is maintained throughout the prescribed angle, acts as a control voltage.
COPYRIGHT: (C)1981,JPO&Japio
JP8727279A 1979-07-09 1979-07-09 Control method of spark advancement in rotational frequency for internal combustion engine Pending JPS5612053A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8727279A JPS5612053A (en) 1979-07-09 1979-07-09 Control method of spark advancement in rotational frequency for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8727279A JPS5612053A (en) 1979-07-09 1979-07-09 Control method of spark advancement in rotational frequency for internal combustion engine

Publications (1)

Publication Number Publication Date
JPS5612053A true JPS5612053A (en) 1981-02-05

Family

ID=13910121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8727279A Pending JPS5612053A (en) 1979-07-09 1979-07-09 Control method of spark advancement in rotational frequency for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS5612053A (en)

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