CN206360839U - It is a kind of to simulate the gasoline engine ignition system controlled with digit complement - Google Patents
It is a kind of to simulate the gasoline engine ignition system controlled with digit complement Download PDFInfo
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- CN206360839U CN206360839U CN201620971154.XU CN201620971154U CN206360839U CN 206360839 U CN206360839 U CN 206360839U CN 201620971154 U CN201620971154 U CN 201620971154U CN 206360839 U CN206360839 U CN 206360839U
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Abstract
The utility model discloses a kind of gasoline engine ignition system simulated and controlled with digit complement, including single-chip microcomputer；Electric capacity charge circuit, charges to charging capacitor, and it includes charge coil L1, diode D1 and charging capacitor C1；Controllable silicon Q1, for controlling charging capacitor C1 to carry out discharge and recharge；Trigger circuit is simulated, the controllable silicon Q1, the discharging time for controlling the charging capacitor C1 is connected；Digital flip flop, connects the single-chip microcomputer and the controllable silicon Q1, the discharging time for controlling charging capacitor C1；The utility model is by setting simulation trigger circuit and digital trigger circuit, analog signal triggering ignition mode is first passed through in initial start stage, can quickly it be lighted a fire, only a circle need to be pulled to trigger igniting, data signal triggering ignition mode is switched to after being powered stably Deng single-chip microcomputer again, be converted into resulting in the more accurately angle of ignition after digital triggering, it is ensured that engine it is stable.
Description
Technical field
The utility model is related to a kind of igniter of gasoline engine simulated and controlled with digit complement, and it is applied to small-sized internal combustion formula
Hay mover, brush cutter, GREEB HEDGE MACHINE, chain saw in petrol engine, such as garden instrument field.
Background technology
Traditional miniature gasoline engine uses MCU for key control unit with Digital igniter, is adjusted according to petrol engine rotational speed
Whole corresponding ignition angle.But because the stable normal works of MCU need a period of time in start-up course, it may appear that gasoline engine is not
The phenomenon easily started；If it is improper to start control, false triggering is easily caused.
Utility model content
There is provided a kind of simulation started quickly, stable and numeral are mutual in order to overcome the deficiencies in the prior art for the utility model
Mend the gasoline engine ignition system of control.
To achieve these goals, the utility model uses following technical scheme：It is a kind of to simulate what is controlled with digit complement
Gasoline engine ignition system, including
Single-chip microcomputer；
Electric capacity charge circuit, charges to charging capacitor, and it includes charge coil L1, diode D1 and charging capacitor
C1；
Controllable silicon Q1, for controlling charging capacitor C1 to carry out discharge and recharge；
Trigger circuit is simulated, the controllable silicon Q1, the discharging time for controlling the charging capacitor C1 is connected；
Digital flip flop, connects the single-chip microcomputer and the controllable silicon Q1, during electric discharge for controlling charging capacitor C1
Carve；
The utility model first passes through analog signal by setting simulation trigger circuit and digital trigger circuit in initial start stage
Ignition mode is triggered, can quickly be lighted a fire, only a circle need to be pulled to start（Triggering igniting）, wait single-chip microcomputer power it is stable after
Data signal triggering ignition mode is switched to again, is converted into resulting in the more accurately angle of ignition after digital triggering, it is ensured that hair
Motivation it is stable.
Further, in addition to
Ignition mode switching circuit, connects the single-chip microcomputer and the simulation trigger circuit, is touched for cutting off the simulation
Beam back road；
Monitoring modular, in the single-chip microcomputer, is connected with the analog trigger circuitry, when single-chip microcomputer powers stabilization,
The simulation ignition signal of the analog trigger circuitry is monitored, and records engine Tn service cycle when last time is triggered.
By ignition mode switching circuit and monitoring modular, quickly and stably realize that analog signal triggering ignition mode is arrived
Data signal triggers the conversion of ignition mode；The simulation ignition signal of monitoring module monitors analog trigger circuitry, and pass through timing
Device operates the number of turns and Tn service cycle to record engine；The service cycle, Tn was that last time simulation is triggered under ignition mode
Engine value service cycle；Using service cycle Tn, signal acquisition module can accurately determine when to carry out digital number triggering
The collection of reference signal, needs just be adopted after waiting the several circles of engine rotation compared to conventional digital triggers circuit
Collection, the utility model can faster, be more accurately acquired signal, engine start faster, can be prevented effectively from false triggering.
Further, isolation circuit is provided between the simulation trigger circuit and the digital triggering loop, for isolating
The fiery signal of simulation triggering ignition signal and digital trigger point.When the voltage that isolation circuit is used to prevent from simulating on trigger circuit is excessive
Damage interface microcontroller.
Further, in addition to flameout circuit, the single-chip microcomputer and the simulation trigger circuit are connected, for cutting off
State analog trigger circuitry and digital flip flop.The flameout circuit by one switch can control simultaneously analog trigger circuitry and
Digital flip flop.
Preferably, also including digital triggering reference signal process circuit, it is connected with the single-chip microcomputer, for being filled described
The the first alternating voltage waveform P1 and the second alternating voltage waveform P2 that electric coil L1 is produced carry out processing and form digital triggering benchmark
Signal.
Preferably, also including signal acquisition module, in the single-chip microcomputer, the digital triggering reference signal is connected
Process circuit, determines when to be acquired the digital triggering according to engine Tn service cycle of monitoring modular record
Reference signal.
Further, in addition to power supply circuit, be connected with the single-chip microcomputer, for receive that the charge coil produces the
One alternating voltage waveform P1 and the second alternating voltage waveform P2, power supply is provided for single-chip microcomputer.
In summary, the utility model has advantages below：The utility model first passes through analog signal in initial start stage and touched
Ignition mode is sent out, can realize and quickly be lighted a fire；Data signal triggering ignition mode is switched to after being powered stably Deng single-chip microcomputer again,
Be converted into resulting in more accurately ignition advance angle after digital triggering, it is ensured that engine it is stable.
Brief description of the drawings
Fig. 1 is mechanical structure schematic diagram of the present utility model.
Fig. 2 is theory diagram of the present utility model.
Fig. 3 is the circuit diagram of the utility model embodiment.
Fig. 4 is the triggering igniting waveform diagram of the utility model embodiment.
Fig. 5 triggers IGNITION CONTROL switching flow figure for the simulation triggering igniting sum word of the utility model embodiment.
Embodiment
In order that those skilled in the art are better understood from the utility model scheme, it is real below in conjunction with the utility model
The accompanying drawing in example is applied, clear, complete description is carried out to the technical scheme in the utility model embodiment.
As shown in Figure 1, 2, a kind of to simulate the gasoline engine ignition system controlled with digit complement, its mechanical structure includes high pressure
Cap 11, high-voltage line 12, control circuit 13；Iron core 14, shell 15 and the epoxy material 16 being filled at housing void；
Innovation of the present utility model is the improvement for controlling circuit 13, will be specifically described the improvement of control circuit, specifically
, the control circuit 13 includes
Single-chip microcomputer, is mainly used in the collections of data, computing, processing and conversion, the collection of its data, computing, processing and turn
Change by corresponding control program to realize, can be by purchasing on the market, specifically, in the present embodiment, choosing on the market
The PIC12F series monolithics of purchase；
Electric capacity charge circuit, it includes charge coil L1, diode D1 and charging capacitor C1；The electric capacity charge circuit passes through
The 3rd AC wave shape P for receiving charge coil L1 generations charges to charging capacitor C1；
Controllable silicon Q1, for controlling charging capacitor C1 to carry out discharge and recharge, during controlled silicon conducting, charging capacitor C1 is put
Electricity, when controllable silicon ends, charging capacitor C1 is charged；
Trigger circuit is simulated, the control pole of the controllable silicon Q1 is connected, is driven by simulating triggering ignition signal described
The on or off of controllable silicon, then controls the discharging time of the charging capacitor C1；
Digital flip flop, connects the control pole of the single-chip microcomputer and the controllable silicon Q1, passes through single-chip microcomputer inter-process
After data, send and instruct to digital triggering loop, digital triggering loop exports digital triggering ignition signal to the controllable silicon
Control pole, drives the conducting of controllable silicon, then controls the discharging time of the charging capacitor C1；
Ignition mode switching circuit, connects the single-chip microcomputer and the simulation trigger circuit, is touched for cutting off the simulation
Beam back road；After single-chip microcomputer inter-process data, send and instruct to ignition mode switching circuit, digital switching circuit cuts off institute
State simulation trigger circuit so that simulation triggering ignition signal can not be transmitted to the control pole of the controllable silicon；In order to prevent working as mould
Intend damaging single-chip microcomputer the corresponding interface when the voltage on trigger circuit is excessive, returned in the simulation trigger circuit and the digital triggering
Isolation circuit is set between road, for isolating the fiery signal of the fiery signal in simulation trigger point and digital trigger point, specifically, in this implementation
In example, the isolation circuit includes diode D3, D4；
Monitoring modular, in the single-chip microcomputer, is connected with the analog trigger circuitry, when single-chip microcomputer powers stabilization,
The simulation ignition signal of the analog trigger circuitry is monitored, and records engine Tn service cycle when last time is triggered；
Digital triggering reference signal process circuit, is connected with the single-chip microcomputer, for produce the charge coil L1
Processing forms digital triggering reference waveform P1 ＂ and P2 ＂ respectively by first alternating voltage waveform P1 and the second alternating voltage waveform P2, with
Signal acquisition is carried out for the single-chip microcomputer;
Signal acquisition module, in the single-chip microcomputer, connects the digital triggering reference signal process circuit, according to institute
Engine Tn service cycle of monitoring modular record is stated to determine when to be acquired the digital triggering reference signal；From numeral
Useful digital triggering reference waveform P1 ＂ are selected in triggering waveform P1 ＂ and P2 ＂, and record engine when operating the (n+1)th circle
T service cycle, rotating speed is obtained according to the computation of Period, computation of table lookup is drawn the corresponding spark delay time, carry out numeral touch
Hair igniting, specific look-up method can be carried out using prior art, and here is omitted.
Flameout circuit, connects the single-chip microcomputer and the simulation trigger circuit, for cut off the analog trigger circuitry and
Digital flip flop.The flameout circuit can control analog trigger circuitry and digital flip flop simultaneously by a switch.
Power supply circuit, is connected with the single-chip microcomputer, for receiving the first alternating voltage ripple that the charge coil L1 is produced
Shape P1 and the second alternating voltage waveform P2, power supply is provided for single-chip microcomputer.
Conventional digital triggering ignition mode needs just be acquired digital triggering after waiting the several circles of engine rotation
Reference signal, and the utility model can faster, more accurately be acquired signal, engine start faster, can be prevented effectively from mistake
Triggering；By setting simulation trigger circuit and digital trigger circuit, analog signal triggering ignition mode is first passed through in initial start stage,
It can quickly be lighted a fire, only a circle need to be pulled to trigger igniting, waited single-chip microcomputer to switch to data signal after powering stably again and touch
Send out ignition mode, be converted into resulting in more accurately ignition advance angle after digital triggering, it is ensured that engine it is stable.
There is provided one of which circuit theory diagrams in the present embodiment, specifically, as shown in figure 3, the electric capacity charges back
Road includes charge coil L1, diode D1, charging capacitor C1, discharge resistance R1, step-up transformer T1, diode D6 and diode
D11；Described step-up transformer T1 includes primary coil L2 and secondary coil L3；Charge coil L1 1 end respectively with diode
D1 anode, diode D6 negative electrode are connected；Controllable silicon Q1 anode negative electrode respectively with diode D1, charging capacitor C1 it is defeated
Enter end to be connected；Discharge resistance R1 is connected in parallel with charging capacitor C1, charging capacitor C1 output end and primary coil L2 1 end phase
Even, it is grounded after primary coil L2 2 ends are connected with secondary coil L3 2 ends, secondary coil L3 1 end is used to connect spark plug；Two
The pole pipe D6 equal grounding connection of anode, the negative pole of controllable silicon Q1 negative electrode and diode D11；Diode D11 positive pole and charging
Coil L1 2 ends are connected.
The analog trigger circuitry includes resistance R6, R2, R13, R5, diode D2, D3, electric capacity C2, C3 and controllable silicon Q2.
Resistance R6 one end is connected with charge coil L1 2 ends, and the resistance R6 other end is respectively with connecing controllable silicon Q2 sun
Pole, diode D3 anode are connected；
Controllable silicon Q2 control pole after negative electrode shunt capacitance C3 with being grounded, diode D2 negative electrode and the 1 of charge coil L1
End is connected, and diode D2 anode is connected by resistance R13 with electric capacity C2 positive pole, and electric capacity C2 positive pole is by resistance R2 with filling
Electric coil L1 1 end is connected；Electric capacity C2 positive pole is connected by resistance R5 with controllable silicon Q2 control pole；Electric capacity C2 negative pole connects
Ground.
In Fig. 3, digital control chip U1 is PIC12F series monolithics, including 8 pins, respectively GP0, GP1, GP2,
GP3, GP4, GP5, VCC and VSS.The power supply circuit of single-chip microcomputer include diode D7, electric capacity C4, C5, C6, voltage-regulator diode D8,
D9 and current-limiting resistance R8.Voltage-regulator diode D8 voltage stabilizing value is greater than voltage-regulator diode D9 voltage stabilizing value, voltage-regulator diode D9's
Maximum working voltage value of the voltage stabilizing value no more than digital control chip U1.
Digital triggering reference signal process circuit includes resistance R11, R12, voltage-regulator diode D13 and electric capacity C7；
Digital ignition triggers circuit include resistance R7, diode D4,
Ignition mode switching circuit includes resistance R10, diode D5；
Flameout circuit includes diode D10, D14, resistance R9, voltage-regulator diode D12 and flameout switch S1；The flame-out electricity
Ignition phase is triggered in road in simulation, if flameout switch S1 is closed, and simulation ignition trigger signals C directly will pass through diode
D14 and flameout switch S1 ground connection, closes simulation triggering ignition function；The stage is controlled in normal digital, then by detecting numeral control
Coremaking piece U1 GP5 mouths come judge whether export ignition signal.
The capacitor charge and discharge firing circuit during engine magnetic electric motor is often transported and turned around, through diode D1, D6,
D11 rectified actions generate B exchanges in charge coil L1 1 end sensing generation A exchange unicast P in charge coil L1 2 ends sensing
Double wave P1, P2.
In the sensitive time, sequentially B exchanges double wave P1 first, and then A exchanges unicast P, last B exchange double waves P2；
B exchanges double wave P1, P2 and single-chip microcomputer power supply circuit is charged by diode D7；Come then in B exchanges double wave P1, P1
Through resistance R6 and diode D3 triggering controllable silicon Q1 conductings, the simulation triggering in the non-normal works of digital control chip U1 is realized
Ignition function；Come then in A exchanges unicast P, by diode D1 to charging capacitor C1 charging accumulation of energys；A exchange unicasts P leads to simultaneously
Cross resistance R2 to charge to electric capacity C2, reach triggering controllable silicon Q2 conductings after certain voltage value set in advance, now shut-off simulation
Igniting Trigger Function；During A exchange unicasts P falls after rise, electric capacity C2 has stepped through resistance R4 and diode D2 electric discharges；Handed in B
Stream double wave P2 comes then, and under P2 forward voltages and electric capacity C2 energy storage effect, controllable silicon Q2 continues to tend to remain on, with
Prevent from exchanging double wave P2 false triggering, directly wait electric capacity C2 electric discharges to complete, and controllable silicon Q2 is just closed completely after the P2 fallings of exchange double wave
It is disconnected, it is ensured that only triggering B exchanges double wave P1.
After single-chip microcomputer powers stabilization, to begin preparing for switching over, before switching, first ensure to proceed the mould of n times
Intend the progress of triggering ignition mode, and engine value service cycle is recorded；Specifically, digital control chip U1 is controlled
GP0 mouthfuls first export low level, and GP4 mouthfuls are configured to input state, and monitoring modular starts monitoring simulation ignition trigger signals C；Work as inspection
P1 ' the ripples for measuring simulation igniting triggering waveform C come then, and digital control chip U1 GP4 mouths detect high level, then open 16
Bit timing device T1 starts timing, directly waits until that next simulation igniting triggering waveform C P1 ' ripples are come, turns off timer T1, then weigh
New opening timing device T1, so circulation, record cumulative startup operating number of turns value S, when startup operating number of turns value S reaches setting
During value N, engine Tn service cycle of n-th is recorded；Meanwhile, single-chip microcomputer is by GP0 mouthfuls of output high level, passing through igniting
Mode switching circuit causes controllable silicon Q2 to turn on, and realizes the shut-off of simulation triggering ignition function；Then, GP4 mouthfuls be configured as it is defeated
Do well, export low level, now, simultaneously turn off analog- and digital- Trigger Function, wait charging capacitor C1 to be charged；
And start timing when the shut-off of simulation triggering ignition function, when the value of timer is Tn/2, proceed by letter
Number collection；Specifically, triggering interrupt function by being configured to outside rising edge by GP2 mouthfuls, triggering reference waveform D is examined
Survey, service cycle when being acquired, and being operated the S+1 times according to the engine of record to the P1 " for triggering reference waveform D looks into
Meter, which is calculated, obtains required spark delay value.Single-chip microcomputer is by GP4 mouthfuls, through resistance R7 and diode D4 output digital ignition letters
Number, engine start simulation triggering igniting is realized to the switching of normal operation digital ignition control, the flow chart element of handoff procedure
Figure is as shown in Figure 5；Diode D3, D4 serve the effect of the fiery signal in isolation simulation trigger point and digital ignition signal.
Obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments；
Based on the embodiment in the utility model, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, should all belong to the scope of the utility model protection.
Claims (7)
1. a kind of simulate the gasoline engine ignition system controlled with digit complement, it is characterised in that：Including
Single-chip microcomputer；
Electric capacity charge circuit, charges to charging capacitor, and it includes charge coil L1, charging capacitor C1；
Controllable silicon Q1, for controlling charging capacitor C1 to carry out discharge and recharge；
Trigger circuit is simulated, the controllable silicon Q1, the discharging time for controlling the charging capacitor C1 is connected；
Digital flip flop, connects the single-chip microcomputer and the controllable silicon Q1, the discharging time for controlling charging capacitor C1.
2. a kind of gasoline engine ignition system simulated with digit complement control according to claim 1, it is characterised in that：Also
Including
Ignition mode switching circuit, connects the single-chip microcomputer and the simulation trigger circuit, is triggered back for cutting off the simulation
Road；
Monitoring modular, in the single-chip microcomputer, is connected with the analog trigger circuitry, when single-chip microcomputer powers stabilization, monitoring
The simulation ignition signal of the analog trigger circuitry, and record engine value service cycle Tn when last time is triggered.
3. a kind of gasoline engine ignition system simulated with digit complement control according to claim 1, it is characterised in that：Institute
State and isolation circuit is provided between simulation trigger circuit and the digital triggering loop, for isolating the fiery signal sum in simulation trigger point
Word triggers ignition signal.
4. a kind of gasoline engine ignition system simulated with digit complement control according to claim 1, it is characterised in that:
Also include flameout circuit, the single-chip microcomputer and the simulation trigger circuit are connected, for cutting off the analog trigger circuitry sum
Word triggers circuit.
5. a kind of gasoline engine ignition system simulated with digit complement control according to claim 1, it is characterised in that:Also
Including digital triggering reference signal process circuit, be connected with the single-chip microcomputer, for the charge coil L1 is produced first
Alternating voltage waveform P1 and the second alternating voltage waveform P2 carries out processing and forms digital triggering reference signal.
6. a kind of gasoline engine ignition system simulated with digit complement control according to claim 2, it is characterised in that：Also
Including signal acquisition module, in the single-chip microcomputer, the digital triggering reference signal process circuit is connected, according to the prison
The engine value service cycle Tn of module record is surveyed to determine when to be acquired the digital triggering reference signal.
7. a kind of gasoline engine ignition system simulated with digit complement control according to claim 1, it is characterised in that:Also
Including power supply circuit, be connected with the single-chip microcomputer, for receive the first alternating voltage waveform P1 that the charge coil produces and
Second alternating voltage waveform P2, power supply is provided for single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620971154.XU CN206360839U (en) | 2016-08-29 | 2016-08-29 | It is a kind of to simulate the gasoline engine ignition system controlled with digit complement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620971154.XU CN206360839U (en) | 2016-08-29 | 2016-08-29 | It is a kind of to simulate the gasoline engine ignition system controlled with digit complement |
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| CN206360839U true CN206360839U (en) | 2017-07-28 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321323A (en) * | 2016-08-29 | 2017-01-11 | 浙江锋龙电气股份有限公司 | Simulation and digital complementary controlled gasoline engine ignition method and device |
| CN108005831A (en) * | 2017-11-07 | 2018-05-08 | 浙江锋龙电气股份有限公司 | A kind of high accuracy ignition system |
| CN110630424A (en) * | 2019-09-11 | 2019-12-31 | 浙江锋龙电气股份有限公司 | High-precision ignition system with double trigger coils and method |
-
2016
- 2016-08-29 CN CN201620971154.XU patent/CN206360839U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321323A (en) * | 2016-08-29 | 2017-01-11 | 浙江锋龙电气股份有限公司 | Simulation and digital complementary controlled gasoline engine ignition method and device |
| CN106321323B (en) * | 2016-08-29 | 2019-02-22 | 浙江锋龙电气股份有限公司 | A kind of gasoline engine ignition method and device of simulation and digit complement control |
| CN108005831A (en) * | 2017-11-07 | 2018-05-08 | 浙江锋龙电气股份有限公司 | A kind of high accuracy ignition system |
| CN108005831B (en) * | 2017-11-07 | 2021-04-09 | 浙江锋龙电气股份有限公司 | High-precision ignition system |
| CN110630424A (en) * | 2019-09-11 | 2019-12-31 | 浙江锋龙电气股份有限公司 | High-precision ignition system with double trigger coils and method |
| CN110630424B (en) * | 2019-09-11 | 2021-06-18 | 浙江锋龙电气股份有限公司 | High-precision ignition system with double trigger coils and method |
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