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 engineInfo
- 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
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
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) |
-
1979
- 1979-07-09 JP JP8727279A patent/JPS5612053A/en active Pending
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