CN202300780U - Ignition system - Google Patents
Ignition system Download PDFInfo
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- CN202300780U CN202300780U CN2011203890596U CN201120389059U CN202300780U CN 202300780 U CN202300780 U CN 202300780U CN 2011203890596 U CN2011203890596 U CN 2011203890596U CN 201120389059 U CN201120389059 U CN 201120389059U CN 202300780 U CN202300780 U CN 202300780U
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- ignition
- module
- field effect
- utmost point
- effect transistor
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- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The utility model discloses an ignition system, which is used on an internal combustion engine, and includes a resistor network and at least one field-effect transistor, wherein each field-effect transistor includes a G pole, an S pole and a D pole; the resistor network and the G poles are connected for providing input signals for the field-effect transistors; the S poles are connected with a power supply; and the D poles output ignition current. The ignition system provided by the utility model adopts a latching module for controlling the ignition device, and the latch can provide appropriate ignition current during the use even if the microcontroller is reset due to overcurrent, so that the reliability of ignition is improved, and the safety of the system is improved.
Description
Technical field
The utility model relates to ignition system, relates in particular to a kind of ignition system that is used for internal-combustion engine.
Background technique
Petrol engine and diesel engine are widely used in fields such as communications and transportation, mining machinery, interim generating.In recent years, along with automation of operation and intellectuality, the igniting of petrol engine and diesel engine adopts central control unit to control usually.Yet,, in use above-mentioned petrol engine or diesel engine are restarted owing to controling or pushing unexpectedly along with the further raising of intelligent level.Huge current flow starting moment forces central control unit to reset, thereby temporarily loses the control of its petrol engine or diesel engine and cause accident extinguishing, thereby has brought potential safety hazard.
Summary of the invention
In view of the above, be necessary to provide a kind of safe and reliable ignition system.
A kind of ignition system; This ignition system is applied on the internal-combustion engine, and this ignition system comprises microcontroller, ignition mechanism and latch module, and said microprocessor controls is that latch module provides control signal; Said latch module control ignition device makes this ignition mechanism that initial firing current is provided.
Preferably; This ignition mechanism comprises current amplifier, first ignition module and second ignition module; Said latch module is controlled first ignition module and second ignition module output initial firing current through current amplifier; Said first ignition module provides initial firing current when starting, said second ignition module provides initial firing current after startup.
Preferably, said first ignition module and second ignition module include at least one field effect transistor, and said field effect transistor comprises the G utmost point, the S utmost point and the D utmost point, and said current amplifier provides input signal for the G utmost point, and the said S utmost point connects power supply, said D utmost point output initial firing current.
Preferably, said first ignition module comprises four field effect transistors, and said field effect transistor is connected in parallel.
Preferably, said second ignition module comprises two field effect transistors, and said two field effect transistors are connected in parallel.
Preferably, said field effect transistor is the field effect transistor of IRF4905.
A kind of ignition system, this ignition system is applied on the internal-combustion engine, and this ignition system comprises microcontroller and ignition mechanism; It is characterized in that: said ignition system further comprises latch module, and said microprocessor controls is that latch module provides control signal, and this ignition mechanism comprises field effect transistor; Said field effect transistor comprises the G utmost point, the S utmost point and the D utmost point; The said S utmost point is connected with power supply, and the said G utmost point provides input current, said D utmost point output initial firing current.
Preferably, said field effect transistor is the field effect transistor of IRF4905.
Preferably; This ignition mechanism further comprises first ignition module, second ignition module, current amplifier and motor drive module; Said first ignition module links to each other with an output terminal of current amplifier respectively with second ignition module; Said first ignition module and second ignition module comprise at least one field effect transistor, and said current amplifier is that first ignition module and second ignition module provide input current.
Preferably, said first ignition module has four field effect transistors and is provided with first exclusion, and four field effect transistors of said first ignition module are connected in parallel and G extremely all is connected with first exclusion; Said second ignition module comprises two field effect transistors, and two field effect transistors of said second ignition module are connected in parallel and G extremely all is connected with second exclusion.
Compare existing technology, the ignition system of the utility model has adopted latch module control ignition device, in using process; Even microcontroller resets because of super-high-current; This latch still can provide suitable initial firing current, has improved the reliability of igniting, the Security that has improved system.
Description of drawings
Fig. 1 is the module diagram of this ignition system preferred embodiment.
Fig. 2 is the circuit theory diagrams of this ignition system preferred embodiment.
Embodiment
By the technology contents, the structure characteristics that specify the utility model, realized purpose and effect, know clearly below in conjunction with mode of execution and conjunction with figs. and give explanation.
See also Fig. 1, the ignition system 100 that the utility model preferred embodiment is applied to internal-combustion engine comprises information processing 10, current amplifier 20, first ignition module 32, second ignition module 34 and motor drive module 40.Said information processing 10 comprises microcontroller (Micro Control Unit; MCU) 12 and latch module 14; Said microcontroller 12 passes to latch module 14 with signal; Said latch module 14 is through current amplifier 20 controls first ignition module 32, second ignition module 34 and motor drive module 40, thereby internal-combustion engine can start smoothly and at the proper time point fire.
This information processing 10 is used for the startup initialize signal of input is handled and preserved.Particularly, in the utility model preferred embodiment, it is the chip of ASTS9090 that this microcontroller 12 adopts model, has 28 pins.Wherein, pin 5 and 19 ground connection, pin 20 connects positive source.Pin 9 and 10 connects a crystal oscillation circuit 121 so that pulse signal to be provided.Said pin 22 is used for the serial data input.Pin 23 is used to latch module 14 displacement data is provided, and pin 24 provides clock pulse signal for latch module 14.
It is the chip of 74HC595 that this latch module 14 adopts model, has 16 ports.Said port one 6 connects power supply, port 8 ground connection.Port one 0 is the low level master reset, and port one 3 is effective for low level output.Port one 1 is shift register clock input, the input of port one 2 memory register clocks.The port 5 of said latch module 14 is an ACC START parallel data output terminal, and port 6 is set at MA START output terminal for ON START output terminal, port 7.In the preferred embodiment of the utility model; Latch module 14 control log-on message ACC START, ON START and MA START have been adopted; By independent chip controls, even when microcontroller 12 receives the big function of current and resets, also can not stop fire signal being provided to internal-combustion engine; Prevent accident extinguishing, improved the Security of using.
Said current amplifier 20 is used for comprising big current drives array 22 and three resistance 24 to behind the said latch module 12 output signals electric current being amplified.In the utility model preferred embodiment, the chip model that this big current drives array 22 adopts is ULN2003.
See also Fig. 2, when this big current drives array ULN2003 was connected with latch module 14, the input end stitch 1 of said big current drives array ULN2003 connected the parallel data output terminal 5 of latch module 14.The input end stitch 2 of said big current drives array ULN2003 connects the parallel data output terminal 6 of latch module 14.The input end stitch 3 of said big current drives array ULN2003 connects the parallel data output terminal 7 of latch module 14.The resistance of connecting between the input end stitch 1 of the parallel data output terminal 5 of said latch module 14 and said big current drives array ULN2003 is first resistance 242 of 10K Ω; The resistance of connecting between the input end stitch 2 of the parallel data output terminal 6 of said latch module 14 and said big current drives array ULN2003 is second resistance 244 of 10K Ω; The resistance of connecting between the input end stitch 3 of the parallel data output terminal 7 of said latch module 14 and said big current drives array ULN2003 is the 3rd resistance 246 of 10K Ω, is used for this big current drives array ULN2003 of protection.
Said first ignition module 32 is being used for igniting when starting.Said first ignition module 32 comprises four field effect transistors 322, first exclusion 324, input end 326 and output terminal 328.In the utility model preferred embodiment, said first exclusion 324 has 5 resistance, and in the utility model preferred embodiment, each resistance size is 4.8K Ω, and it is the field effect transistor of IRF4905 that said field effect transistor 322 adopts model.The G utmost point of said field effect transistor is connected with first exclusion 324 so that input signal to be provided, and the S utmost point connects the 12V power supply power supply to be provided, D utmost point output initial firing current.
Said second ignition module 34 is lighted a fire after startup.Said second ignition module 34 comprises two field effect transistors 342 and second exclusion 344.In the utility model preferred embodiment, said second exclusion 344 has three resistance, and each resistance size is 4.8K Ω.It is the field effect transistor of IRF4905 that said field effect transistor 342 adopts model.The G utmost point of said field effect transistor is connected with second exclusion 344, and the S utmost point connects the 12V power supply, D utmost point output initial firing current.
Said first ignition module 32 is connected with big current drives array 22 respectively with second ignition module 34.Wherein, the input end 326 of said first ignition module 32 is connected with 15 stitch of said big current drives array ULN2003.Said four field effect transistors 322 are connected in parallel to first exclusion, 324, the first exclusions 324 and connect with 15 stitch of said big current drives array ULN2003.The input end of said second ignition module 34 (figure is mark not) is connected with 16 stitch of said big current drives array ULN2003; During connection; Said two field effect transistors 342 are connected in parallel to second exclusion, 344, the second exclusions 344 and connect with 16 stitch of said big current drives array ULN2003.
Said first ignition module 32, second ignition module 34 and current amplifier 20 form ignition mechanisms; Said ignition mechanism has adopted field effect transistor to replace conventional means of relay; In the using process; Even it is good that the influence of factors such as vibrations still can guarantee contact, can avoid the problem of relay bad connection.In addition, because field effect transistor can not produce electrical spark in conducting moment, it is little generate heat, has not only improved the life-span of use, the cost that can also further cut down the consumption of energy and safeguard.
Said motor drive module 40 comprises contactor 42, fus 44 and and diode 46.Said contactor 42 is connected with fus 44, and fus 44 1 ends and diode 46 1 ends converge and be connected to the stitch 14 of big current drives array 22, and the other end of the other end of fus 44 and diode 46 converges and is connected to a power supply.Said contactor 42 comprises first input end 422, first output terminal 424, second output terminal 426.The said first input end 422 and first output terminal 424, second output terminal 426 form switches; And first input end 422 has three electric connection points; Select the wherein electric connection point of first input end 422 through switch, thereby be connected in the optional majority kind circuit any one with first output terminal 424 or second output terminal 426.
The other end of said first input end 422 relative electric connection points links to each other with first ignition module, 32 output terminals 328.When the energising conductings of first ignition module 32 and when exporting signal; Thereby these motor drive module 40 conductings drive starting electrical machinery (figure does not show) work; After this starting electrical machinery (figure does not show) started, motor drive module 40 feedback signals were to big current drives array 22, and microcontroller connects 12 and receives described signal; Make second ignition module 34 continue conducting, thereby guarantee the persistency of igniting action.
When using the ignition system 100 of the utility model, during startup, this microcontroller 12 passes to latch module 14 with control signal, and said latch module 14 opens motor drive module 40 through current amplifier 20 and first ignition module 32 makes internal combustion engine start.Behind the internal combustion engine start, the electrical equipment driver module 40 and first ignition module 32 quit work, and second ignition module 34 gets into working state.
To sum up, the utility model ignition system 100 sends ignition control signal through information processing, and control ignition is lighted inflammable mixture constantly.This Starting mode has adopted relatively independent latch module 14 to solve behind the automobile starting problem that has automobile flameout because of cpu reset.In addition, big current field pipe has startup reliably as electronic switch, is not afraid of vibration, does not generate heat advantages such as no-spark.
The above is merely the embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.
Claims (10)
1. ignition system; This ignition system is applied on the internal-combustion engine; This ignition system comprises microcontroller and ignition mechanism, it is characterized in that: said ignition system further comprises latch module, and said microprocessor controls is that latch module provides control signal; Said latch module control ignition device makes this ignition mechanism that initial firing current is provided.
2. according to claim the 1 described ignition system; It is characterized in that: this ignition mechanism comprises current amplifier, first ignition module and second ignition module; Said latch module is controlled first ignition module and second ignition module output initial firing current through current amplifier; Said first ignition module provides initial firing current when starting, said second ignition module provides initial firing current after startup.
3. according to claim the 2 described ignition systems; It is characterized in that: said first ignition module and second ignition module include at least one field effect transistor; Said field effect transistor comprises the G utmost point, the S utmost point and the D utmost point; Said current amplifier provides input signal for the G utmost point, and the said S utmost point connects power supply, said D utmost point output initial firing current.
4. according to claim the 3 described ignition systems, it is characterized in that: said first ignition module comprises four field effect transistors, and said field effect transistor is connected in parallel.
5. according to claim the 3 described ignition systems, it is characterized in that: said second ignition module comprises two field effect transistors, and said two field effect transistors are connected in parallel.
6. according to each ignition system of claim the 3-5, it is characterized in that: said field effect transistor is the field effect transistor of IRF4905.
7. ignition system, this ignition system is applied on the internal-combustion engine, and this ignition system comprises microcontroller and ignition mechanism; It is characterized in that: said ignition system further comprises latch module, and said microprocessor controls is that latch module provides control signal, and this ignition mechanism comprises field effect transistor; Said field effect transistor comprises the G utmost point, the S utmost point and the D utmost point; The said S utmost point is connected with power supply, and the said G utmost point provides input current, said D utmost point output initial firing current.
8. according to 7 described ignition systems of claim the, it is characterized in that: said field effect transistor is the field effect transistor of IRF4905.
9. according to 7 described ignition systems of claim the; It is characterized in that: this ignition mechanism further comprises first ignition module, second ignition module, current amplifier and motor drive module; Said first ignition module links to each other with an output terminal of current amplifier respectively with second ignition module; Said first ignition module and second ignition module comprise at least one field effect transistor, and said current amplifier is that first ignition module and second ignition module provide input current.
10. according to 9 described ignition systems of claim the, it is characterized in that: said first ignition module has four field effect transistors and is provided with first exclusion, and four field effect transistors of said first ignition module are connected in parallel and G extremely all is connected with first exclusion; Said second ignition module comprises two field effect transistors, and two field effect transistors of said second ignition module are connected in parallel and G extremely all is connected with second exclusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203890596U CN202300780U (en) | 2011-10-13 | 2011-10-13 | Ignition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203890596U CN202300780U (en) | 2011-10-13 | 2011-10-13 | Ignition system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202300780U true CN202300780U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203890596U Expired - Fee Related CN202300780U (en) | 2011-10-13 | 2011-10-13 | Ignition system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202300780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384001A (en) * | 2011-10-13 | 2012-03-21 | 中山市佐敦音响防盗设备有限公司 | Ignition system and ignition method using same |
-
2011
- 2011-10-13 CN CN2011203890596U patent/CN202300780U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384001A (en) * | 2011-10-13 | 2012-03-21 | 中山市佐敦音响防盗设备有限公司 | Ignition system and ignition method using same |
| CN102384001B (en) * | 2011-10-13 | 2016-01-20 | 中山市佐敦音响防盗设备有限公司 | Ignition system and apply the ignition method of this system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20121013 |