CN206889152U - Intelligent high frequency pulse firing supervising device - Google Patents
Intelligent high frequency pulse firing supervising device Download PDFInfo
- Publication number
- CN206889152U CN206889152U CN201720828278.7U CN201720828278U CN206889152U CN 206889152 U CN206889152 U CN 206889152U CN 201720828278 U CN201720828278 U CN 201720828278U CN 206889152 U CN206889152 U CN 206889152U
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- China
- Prior art keywords
- spark plug
- diode
- optocoupler
- hold circuit
- sample resistance
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- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The utility model discloses a kind of intelligent high frequency pulse firing supervising device, include the optocoupler voltage hold circuit of the secondary current value for monitoring spark plug, include the sample resistance voltage hold circuit of the primary voltage value for monitoring spark plug.The utility model intelligent high frequency pulse firing supervising device, it monitors the size of current of the secondary coil of spark plug by optocoupler voltage hold circuit, the current signal gathered, which is transmitted after A/D is changed to ignition controller, ignition controller, just can judge the fired state of spark plug；It gathers the magnitude of voltage of spark plug primary coil by sample resistance voltage hold circuit; the signal of sample resistance voltage hold circuit collection is transmitted after A/D is changed to ignition controller; ignition controller just can be judged ignition intensity; and then adjustable primary voltage; control ignition intensity; the problems such as avoiding flame-out and detonation, while spark plug can be protected, improve igniting reliability.
Description
Technical field
Engine igniting system technical field is the utility model is related to, more particularly to a kind of high-frequency impulse internal-combustion engine ignition system
System.
Background technology
Ignition system in existing general-purpose engine engine, use closed magnetic circuit high-voltage ignition coil mostly.Using tradition
Plug ignition be difficult reliable, the rapidly combustion mixture in ignition combustion chamber, be in lean-burn catch fire it is mixed near lower limit
Close gas and be easy to flame-out phenomenon occur, caused by this is due to the intrinsic limitation of spark plug itself.Traditional sparking mode, only produce
A raw incendiary source, lights a fire by the flame propagation process a little radiated out, not only have impact on burn rate, extend burning
Duration, it is also easy to cause detonation, seems especially prominent when lighting lean-burn gaseous mixture；In addition, ignition effectiveness is low general
Have 5% or so, most ignition energies are distributed in electric arc and glow discharge stage, the capacity usage ratio pole in the two stages
Low, most energy is used to heat electrode.Secondly, the complete machine thermal efficiency is reduced, in order to accelerate the mixing of fuel-air and combustion
Burn, it is necessary to more strong turbulent flow is formed in combustion chamber, can so increase heat transfer of the gaseous mixture to combustion chamber wall surface, in reduction
The thermal efficiency of combustion engine.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of intelligent high frequency pulse firing supervising device, with to tradition
The primary coil of spark plug and the voltage and current of secondary coil are monitored, and fired state letter is provided in real time for ignition controller
Breath, so that ignition controller can accurately adjust primary voltage, ignition intensity is controlled, the problems such as avoiding flame-out and detonation.
The utility model intelligent high frequency pulse firing supervising device, including for monitoring the secondary current value of spark plug
Optocoupler voltage hold circuit, include be used for monitor spark plug primary voltage value sample resistance voltage keep electricity
Road,
The optocoupler voltage hold circuit is by optocoupler, the first amplifying circuit, the first diode, the first electric capacity, first resistor
Composition；The colelctor electrode of phototriode in the optocoupler is connected with the signal input part of the first amplifying circuit, photosensitive in optocoupler
The grounded emitter of triode；The signal output part of first amplifying circuit is connected with the positive pole of the first diode；First electricity
One end of appearance is connected with the negative pole of the first diode, the other end of the first electric capacity ground connection；One end of the first resistor and first
The negative pole connection of diode, the other end ground connection of first resistor；
The sample resistance voltage hold circuit by sample resistance, the second amplifying circuit, the second diode, the second electric capacity,
Second resistance forms；One end of the sample resistance is connected with the signal input part of the second amplifying circuit, sample resistance it is another
End ground connection；The signal output part of second amplifying circuit is connected with the positive pole of the second diode；One end of second electric capacity and the
The negative pole connection of two diodes, the other end ground connection of the second electric capacity；One end of the second resistance and the negative pole of the second diode
Connection, the other end ground connection of second resistance.
The beneficial effects of the utility model：
The utility model intelligent high frequency pulse firing supervising device, it monitors spark plug by optocoupler voltage hold circuit
The size of current of secondary coil, the current signal gathered, which is transmitted after A/D is changed to ignition controller, ignition controller, just can
The fired state of spark plug is judged；It gathers the voltage of spark plug primary coil by sample resistance voltage hold circuit
Value, the signal of sample resistance voltage hold circuit collection transmits after A/D is changed just can be right to ignition controller, ignition controller
Ignition intensity judged, and then adjustable primary voltage, controls ignition intensity, the problems such as avoiding flame-out and detonation, together
When can protect spark plug, improve igniting reliability.
Brief description of the drawings
Fig. 1 is the structural representation of optocoupler voltage hold circuit；
Fig. 2 is the structural representation of sample resistance voltage hold circuit.
Embodiment
The utility model is further described with reference to embodiment.
The present embodiment intelligent high frequency pulse firing supervising device, including for monitoring the secondary current value of spark plug
Optocoupler voltage hold circuit, include the sample resistance voltage hold circuit of the primary voltage value for monitoring spark plug.
The optocoupler voltage hold circuit is by optocoupler 1, the first amplifying circuit 2, the first diode 3, the first electric capacity 4, first
Resistance 5 forms；The colelctor electrode of phototriode in the optocoupler is connected with the signal input part of the first amplifying circuit, in optocoupler
The grounded emitter of phototriode；The signal output part of first amplifying circuit is connected with the positive pole of the first diode；Described
One end of one electric capacity is connected with the negative pole of the first diode, the other end of the first electric capacity ground connection；One end of the first resistor with
The negative pole connection of first diode, the other end ground connection of first resistor.
The sample resistance voltage hold circuit is by sample resistance 6, the second amplifying circuit 7, second the 8, second electricity of diode
Hold 9, second resistance 10 to form；One end of the sample resistance is connected with the signal input part of the second amplifying circuit, sample resistance
The other end ground connection；The signal output part of second amplifying circuit is connected with the positive pole of the second diode；The one of second electric capacity
End is connected with the negative pole of the second diode, the other end of the second electric capacity ground connection；One end of the second resistance and the second diode
Negative pole connection, second resistance the other end ground connection.
The present embodiment intelligent high frequency pulse firing supervising device, by the two of optocoupler light emitting diode and spark plug secondary coil
End connection, the size of current of the secondary coil of spark plug is monitored by optocoupler voltage hold circuit.By the letter of the second amplifying circuit
Number input is connected with spark plug primary coil high level end, is passed through sample resistance voltage hold circuit and is gathered spark plug primary line
The magnitude of voltage of circle.
The present embodiment intelligent high frequency pulse firing supervising device, the current signal of optocoupler voltage hold circuit collection is through A/D
Transmitted after conversion to ignition controller, judge that the fired state of spark plug provides data and supported for ignition controller.Sample resistance
The signal of voltage hold circuit collection is transmitted to ignition controller after A/D is changed, and judges that ignition intensity carries for ignition controller
Supported for data.So controller just can accurately adjust primary voltage, control ignition intensity, avoid flame-out and detonation etc. from asking
Topic, igniting reliability can be improved, while the control to primary voltage can also protect spark plug.
Finally illustrate, above example is only unrestricted to illustrate the technical solution of the utility model, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent substitution, without departing from the objective and model of technical solutions of the utility model
Enclose, it all should cover among right of the present utility model.
Claims (1)
- A kind of 1. intelligent high frequency pulse firing supervising device, it is characterised in that：Including the secondary coil electricity for monitoring spark plug The optocoupler voltage hold circuit of flow valuve, in addition to the sample resistance voltage of the primary voltage value for monitoring spark plug are kept Circuit；The optocoupler voltage hold circuit is made up of optocoupler, the first amplifying circuit, the first diode, the first electric capacity, first resistor； The colelctor electrode of phototriode in the optocoupler is connected with the signal input part of the first amplifying circuit, phototriode in optocoupler Grounded emitter；The signal output part of first amplifying circuit is connected with the positive pole of the first diode；The one of first electric capacity End is connected with the negative pole of the first diode, the other end of the first electric capacity ground connection；One end of the first resistor and the first diode Negative pole connection, first resistor the other end ground connection；The sample resistance voltage hold circuit is by sample resistance, the second amplifying circuit, the second diode, the second electric capacity, second Resistance forms；One end of the sample resistance is connected with the signal input part of the second amplifying circuit, another termination of sample resistance Ground；The signal output part of second amplifying circuit is connected with the positive pole of the second diode；One end and the two or two of second electric capacity The negative pole connection of pole pipe, the other end ground connection of the second electric capacity；One end of the second resistance is connected with the negative pole of the second diode, The other end ground connection of second resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720828278.7U CN206889152U (en) | 2017-07-10 | 2017-07-10 | Intelligent high frequency pulse firing supervising device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720828278.7U CN206889152U (en) | 2017-07-10 | 2017-07-10 | Intelligent high frequency pulse firing supervising device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206889152U true CN206889152U (en) | 2018-01-16 |
Family
ID=61296002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720828278.7U Active CN206889152U (en) | 2017-07-10 | 2017-07-10 | Intelligent high frequency pulse firing supervising device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206889152U (en) |
-
2017
- 2017-07-10 CN CN201720828278.7U patent/CN206889152U/en active Active
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