CN2596040Y - Microelectronic control device for improving combustion of petrol engine - Google Patents
Microelectronic control device for improving combustion of petrol engine Download PDFInfo
- Publication number
- CN2596040Y CN2596040Y CN 02290534 CN02290534U CN2596040Y CN 2596040 Y CN2596040 Y CN 2596040Y CN 02290534 CN02290534 CN 02290534 CN 02290534 U CN02290534 U CN 02290534U CN 2596040 Y CN2596040 Y CN 2596040Y
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- China
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- circuit
- connects
- photo coupler
- chip microcomputer
- input end
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- Expired - Fee Related
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Abstract
The utility model discloses a microelectronic control device for improving the combustion of a gasoline engine, which comprises a signal processing monolithic computer and a stabilized power supply circuit 1, wherein, an output end of the monolithic computer is connected with an amplifying circuit; an input end of a pulse signal of an ignition coil of the monolithic computer is connected with a shaping circuit U2; an input end of the shaping circuit U2 is connected with a photoelectric coupler U1; the photoelectric coupler U1 is connected with a filter circuit; a circuit of a photoelectric sensor U3 is connected with an analogue/digital converter U4, and an output end of the analogue/digital converter U4 is connected with the monolithic computer. With the adoption of the photoelectric sensor, the unstable combustion before the start of a vehicle can be eliminated, and the sensitivity of the sensor can be improved, and the service life of the sensor can be extended; with the adoption of the photoelectric coupler, the reliability thereof can be improved, and the interference of the ignition coil to a chip can be avoided. With the adoption of the utility model, the flow quantity can be reliably controlled, and the utility model can reach the optimum mixing ratio; the operation of an engine can be improved, and the good fuel saving effect and the exhaust decreasing effect can be obtained.
Description
Technical field
The utility model belongs to the device that improves petrol engine combustion, is specifically related to a kind of microelectronic control gear that improves petrol engine combustion.
Background technique
The gasoline locomotive of the Carburetor of uses such as existing automobile, motorcycle all is to provide fuel by Carburetor, because of the performance characteristic of Carburetor own, has determined it to be difficult to guarantee evenly to provide best oil gas mixing ratio to motor in locomotive whole service operating mode scope.Most Carburetors are for guaranteeing the index of constant engine operating mode, and mixed gas is dense partially when low-load and rotating speed usually, and this influence to engine combustion process is very big, cause thus that hazardous emission increases in excessive oil consumption and the exhaust.The existing microelectronic control gear that improves petrol engine combustion, the collection of its signal realizes by pressure swing type or inductance type mode, the poor reliability of this mode, defective such as working life is short.
Summary of the invention
The purpose of this utility model is to provide a kind of and gathers signal by photo coupler and photoelectric sensor, is used to improve the microelectronic control gear of petrol engine combustion, to overcome above-mentioned defective.
The technical solution of the utility model is: the microelectronic control gear that improves petrol engine combustion comprises signal processing single chip, the anxious voltage source circuit 1 that is connected with single-chip microcomputer, single-chip microcomputer output connects amplification circuit, the input end of the spark coil pulse signal of single-chip microcomputer connects shaping circuit U2, and the input end of shaping circuit U2 connects photo coupler U1; Photo coupler U1 connects eliminator; Photoelectric sensor U3 circuit connects A/D converter U4, and the output terminal of A/D converter U4 connects single-chip microcomputer.
The utility model adopts photoelectric sensor, and it has got rid of the rough burning before the motor vehicle starting, and the sensitivity that has improved sensor increases the service life; Adopt photo coupler, improved its reliability, avoided the interference of spark coil itself chip.This device has been controlled flow reliably, makes it reach best proportions of ingredients, improves the work of motor, obtains good fuel-economizing and reduces the effect of discharging.
Description of drawings
Fig. 1 microelectronic control gear circuit diagram
Fig. 2 control principle schematic representation
Embodiment
As shown in Figure 1, singlechip CPU adopts 12 single-chip microcomputers, and the voltage-stabilized power supply circuit 1 that is connected with singlechip CPU comprises three terminal regulator U6, the capacitor C 0, the C5 that are connected with three terminal regulator U6, electric current is suddenly decided chip U7, and current stabilization chip U7 connects C6, C7, resistance R 7.Singlechip CPU connects crystal oscillating circuit 2.Singlechip CPU output connects amplification circuit and comprises and amplifier U5 the resistance R 5 that is connected with amplifier U5, diode D2 and inductance NL.
Photoelectric sensor U3 circuit connects A/D converter U4, and the output terminal of A/D converter U4 connects single-chip microcomputer.Photo coupler U1 circuit comprises photo coupler U1, with the slip optical grating panel displacement display device that is made of interconnective diode DE1, DE2 and LED 2 of photo coupler U1.
The input end of the spark coil pulse signal of singlechip CPU connects shaping circuit U2, the input end of shaping circuit U2 connects photo coupler U1, photo coupler U1 connects eliminator, eliminator is by the resistance R 1 of series connection, inductance L 1, resistance R 3, inductance L 1 two ends parallel resistor R2, capacitor C 1 is formed with resistance R 3 diode connected in parallel D1.
As shown in Figure 2, the control principle of present embodiment is: photoelectric sensor is with the rotating speed or the accelerator open degree of detection of engine, and when the throttle position movable type, sensor is synchronized with the movement and provides the correspondent voltage signal and is input to singlechip CPU; The pulse signal of magnetogenerator is input to singlechip CPU behind photo coupler, two signals are after singlechip CPU is handled and revised, make it more to meet optimal air-fuel ratio at that time, after chip is reached a conclusion, drive circuit inputs to solenoid valve with control signal and makes its work, thereby realizes the control of air through flow.
Claims (2)
1, a kind of microelectronic control gear that improves petrol engine combustion, it comprises signal processing single chip, the mu balanced circuit that is connected with single-chip microcomputer (1), single-chip microcomputer output connects amplification driving circuit, the input end that it is characterized in that the spark coil pulse signal of single-chip microcomputer connects shaping circuit (U2), the input end of shaping circuit (U2) connects photo coupler (U1), and photo coupler (U1) connects eliminator; Photoelectric sensor (U3) circuit connects A/D converter (U4), and the output terminal of A/D converter (U4) connects single-chip microcomputer.
2, improve the microelectronic control gear of petrol engine combustion according to claim 1, it is characterized in that photo coupler (U1) circuit comprises photo coupler (U1), with the slip optical grating panel displacement display device by interconnective diode (DE1), (DE2) and light emitting diode (LED2) formation of photo coupler (U1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02290534 CN2596040Y (en) | 2002-12-20 | 2002-12-20 | Microelectronic control device for improving combustion of petrol engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02290534 CN2596040Y (en) | 2002-12-20 | 2002-12-20 | Microelectronic control device for improving combustion of petrol engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2596040Y true CN2596040Y (en) | 2003-12-31 |
Family
ID=33749720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02290534 Expired - Fee Related CN2596040Y (en) | 2002-12-20 | 2002-12-20 | Microelectronic control device for improving combustion of petrol engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2596040Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101634255B (en) * | 2009-08-09 | 2012-04-18 | 闵敏 | Electrical control unit of petrol engine |
-
2002
- 2002-12-20 CN CN 02290534 patent/CN2596040Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101634255B (en) * | 2009-08-09 | 2012-04-18 | 闵敏 | Electrical control unit of petrol engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: XU CHENGZHI XU CHENGDE Effective date: 20041119 Owner name: YANTAI AIFEISHENTE SPECIAL CONTROLS TECHNOLOGY CO Free format text: FORMER OWNER: XU XIAODAN |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20041119 Address after: 264003 No. 26 Yinhe Road, Laishan District, Shandong, Yantai Patentee after: Yantai Fei God Automation Technology Co Ltd Address before: 430021, 265, unification street, Jianghan District, Hubei, Wuhan Co-patentee before: Xu Chengzhi Patentee before: Xu Xiaodan Co-patentee before: Xu Chengde |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |