CN101761438B - Ignition system based on piston linear displacement signal - Google Patents
Ignition system based on piston linear displacement signal Download PDFInfo
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- CN101761438B CN101761438B CN2009102438486A CN200910243848A CN101761438B CN 101761438 B CN101761438 B CN 101761438B CN 2009102438486 A CN2009102438486 A CN 2009102438486A CN 200910243848 A CN200910243848 A CN 200910243848A CN 101761438 B CN101761438 B CN 101761438B
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- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The invention relates to an ignition system based on a piston linear displacement signal, belonging to the technical field of electronic control of power machinery. The ignition system comprises a power source, a high-voltage spark circuit, a straight-line displacement sensor, a low-voltage signal circuit A, a low-voltage signal circuit B, a controller and a spark plug, wherein the power source is connected with the straight-line displacement sensor and the controller, the power source is connected with the spark plug through the high-voltage spark circuit, the straight-line displacement sensor is connected with the controller through the low-voltage signal circuit A, and the controller is connected with the spark plug through the low-voltage signal circuit B. The invention realizes the process from piston linear reciprocating motion to spark plug ignition; control signals and power supply of the power source are transmitted by different circuits, thus having small mutual interference and having an electromagnetic circuit shielding effect; the controller realizes control of the process from the linear displacement sensor to the spark plug; and the invention has simple system structure.
Description
Technical field
The present invention relates to a kind of ignition system, belong to technical field of electronic control of power machinery based on piston linear displacement signal.
Background technique
The ignition system of traditional crank connecting rod type internal combustion engine is to use the ignition system based on bent axle rotation displacement signal; And for linear electric generator; Owing to there is not brace and connecting rod framework; Can't use bent axle rotation displacement signal, therefore, inventing and design a kind of ignition system effectively reliably is the prerequisite of complete machine stable operation.Simultaneously, desired ignition system must be able to satisfy special straight reciprocating motion rule, therefore, adopts linear displacement signal as trigger signal, judges that firing command etc. is adjusted and sent to time of ignition thereby carry out piston displacement.
Because the special characteristic of linear motor; The ignition system that utilizes the crank angle displacement signal to trigger can't be applied in the straight line internal-combustion engine; Must use a kind of effective signal that is exclusively used in linear motor as trigger signal, through cooperating complete ignition system of the unified formation of sensor, low-voltage signal circuit, high tension spark circuit and spark plug.
Summary of the invention
The objective of the invention is to be applied to the problem in the straight line internal-combustion engine, propose a kind of ignition system based on piston linear displacement signal in order to solve existing corner signal ignition system.
The objective of the invention is to realize through following technological scheme.
A kind of ignition system based on piston linear displacement signal of the present invention comprises: power supply, high tension spark circuit, linear displacement transducer, low-voltage signal circuit A, low-voltage signal circuit B, controller and spark plug; Its annexation is: power supply links to each other with linear displacement transducer; Power supply links to each other with controller; Power supply links to each other with spark plug through the high tension spark circuit, and linear displacement transducer links to each other through low-voltage signal circuit A with controller, and controller links to each other with spark plug through low-voltage signal circuit B;
Working procedure:
Power supply is given linear displacement transducer and controller power supply, and power supply is supplied power to spark plug through the high tension spark circuit; The reciprocating signal of piston linear is passed to linear displacement transducer, and to-and-fro motion detects and obtain the piston displacement signal to linear displacement transducer to piston linear; Linear displacement transducer is transferred to controller with the piston displacement signal that obtains through low-voltage signal circuit A, and controller sends the plug ignition instruction according to control strategy; Controller is transferred to spark plug with the plug ignition instruction through low-voltage signal circuit B, and spark plug excites spark plug internal high pressure electromotive force, plug ignition after receiving firing command; The control strategy of its middle controller obtains motion state for utilizing the piston displacement signal; Thereby and send the working state that control command is confirmed spark plug: when the piston displacement forward increases through the equilibrium position; The control command of controller is the charging beginning, and the state of spark plug is the charging beginning; When the displacement speedup of piston was slowed down arrival forward maximum value, the control command of controller finished for charging, and the state of spark plug finishes for charging; When the speed of piston was kept to zero arrival fixed point, the control command of controller began promptly to light a fire beginning for discharging, and the state of spark plug begins promptly to light a fire beginning for discharging; When the equilibrium position was passed through in the reverse increase of the displacement of piston, the control command of controller finished for discharge, and the state of spark plug is to discharge to finish; Slow down when the reverse speedup of the displacement of piston and to reach that reverse maximum value is then returned and the displacement forward increases up to repeating work through the equilibrium position.
Beneficial effect
1) the present invention has realized reciprocating to from piston linear the process of plug ignition;
2) the different circuits transmission is used in the power supply of control signal and power supply, and interference each other is little, has the effect of electromagnetic circuit shielding;
3) realized the control from the linear displacement transducer to the spark plug through controller;
4) system architecture of the present invention is simple.
Description of drawings
Fig. 1 is a fundamental diagram of the present invention.
Embodiment
A kind of ignition system of the present invention based on piston linear displacement signal, as shown in Figure 1, comprise power supply, high tension spark circuit, linear displacement transducer, low-voltage signal circuit A, low-voltage signal circuit B, controller and spark plug; Its annexation is: power supply links to each other with linear displacement transducer; Power supply links to each other with controller; Power supply links to each other with spark plug through the high tension spark circuit, and linear displacement transducer links to each other through low-voltage signal circuit A with controller, and controller links to each other with spark plug through low-voltage signal circuit B;
Working procedure:
Power supply is given linear displacement transducer and controller power supply, and power supply is supplied power to spark plug through the high tension spark circuit; The reciprocating signal of piston linear is passed to linear displacement transducer, and to-and-fro motion detects and obtain the piston displacement signal to linear displacement transducer to piston linear; Linear displacement transducer is transferred to controller with the piston displacement signal that obtains through low-voltage signal circuit A, and controller calculates time of ignition according to control strategy and algorithm, and sends the plug ignition instruction; Controller is transferred to spark plug with the plug ignition instruction through low-voltage signal circuit B, and spark plug excites spark plug internal high pressure electromotive force, plug ignition after receiving firing command; The control strategy of its middle controller obtains motion state for utilizing the piston displacement signal; Thereby and send the working state that control command is confirmed spark plug: when the piston displacement forward increases through the equilibrium position; The control command of controller is the charging beginning, and the state of spark plug is the charging beginning; When the displacement speedup of piston was slowed down arrival forward maximum value, the control command of controller finished for charging, and the state of spark plug finishes for charging; When the speed of piston was kept to zero arrival fixed point, the control command of controller began promptly to light a fire beginning for discharging, and the state of spark plug begins promptly to light a fire beginning for discharging; When the equilibrium position was passed through in the reverse increase of the displacement of piston, the control command of controller finished for discharge, and the state of spark plug is to discharge to finish; Slow down when the reverse speedup of the displacement of piston and to reach that reverse maximum value is then returned and the displacement forward increases up to repeating work through the equilibrium position.
Claims (1)
1. the ignition system based on piston linear displacement signal comprises power supply, high tension spark circuit, linear displacement transducer, low-voltage signal circuit A, low-voltage signal circuit B, controller and spark plug; Power supply links to each other with linear displacement transducer, and power supply links to each other with controller, and power supply links to each other with spark plug through the high tension spark circuit, and linear displacement transducer links to each other through low-voltage signal circuit A with controller, and controller links to each other with spark plug through low-voltage signal circuit B;
Power supply is given linear displacement transducer and controller power supply, and power supply is supplied power to spark plug through the high tension spark circuit; The reciprocating signal of piston linear is passed to linear displacement transducer, and to-and-fro motion detects and obtain the piston displacement signal to linear displacement transducer to piston linear; Linear displacement transducer is transferred to controller with the piston displacement signal that obtains through low-voltage signal circuit A, and controller sends the plug ignition instruction according to control strategy; Controller is transferred to spark plug with the plug ignition instruction through low-voltage signal circuit B, and spark plug excites spark plug internal high pressure electromotive force, plug ignition after receiving firing command;
It is characterized in that:
The control strategy of controller obtains motion state for utilizing the piston displacement signal; Thereby and send the working state that control command is confirmed spark plug: when the piston displacement forward increases through the equilibrium position; The control command of controller is the charging beginning, and the state of spark plug is the charging beginning; When the displacement speedup of piston was slowed down arrival forward maximum value, the control command of controller finished for charging, and the state of spark plug finishes for charging; When the speed of piston was kept to zero arrival fixed point, the control command of controller began promptly to light a fire beginning for discharging, and the state of spark plug begins promptly to light a fire beginning for discharging; When the equilibrium position was passed through in the reverse increase of the displacement of piston, the control command of controller finished for discharge, and the state of spark plug is to discharge to finish; Slow down when the reverse speedup of the displacement of piston and to reach that reverse maximum value is then returned and the displacement forward increases up to repeating work through the equilibrium position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102438486A CN101761438B (en) | 2009-12-23 | 2009-12-23 | Ignition system based on piston linear displacement signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102438486A CN101761438B (en) | 2009-12-23 | 2009-12-23 | Ignition system based on piston linear displacement signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101761438A CN101761438A (en) | 2010-06-30 |
| CN101761438B true CN101761438B (en) | 2012-11-21 |
Family
ID=42492795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102438486A Expired - Fee Related CN101761438B (en) | 2009-12-23 | 2009-12-23 | Ignition system based on piston linear displacement signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101761438B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3643638A (en) * | 1970-08-24 | 1972-02-22 | Anton Braun | Free piston engine ignition apparatus |
| US5287827A (en) * | 1991-09-17 | 1994-02-22 | Tectonics Companies, Inc. | Free piston engine control system |
| CN101328855A (en) * | 2008-07-24 | 2008-12-24 | 上海交通大学 | Free-piston type internal combustion engine |
| CN201560883U (en) * | 2009-12-23 | 2010-08-25 | 北京理工大学 | Igniting system based on piston straight-line displacement signals |
-
2009
- 2009-12-23 CN CN2009102438486A patent/CN101761438B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3643638A (en) * | 1970-08-24 | 1972-02-22 | Anton Braun | Free piston engine ignition apparatus |
| US5287827A (en) * | 1991-09-17 | 1994-02-22 | Tectonics Companies, Inc. | Free piston engine control system |
| CN101328855A (en) * | 2008-07-24 | 2008-12-24 | 上海交通大学 | Free-piston type internal combustion engine |
| CN201560883U (en) * | 2009-12-23 | 2010-08-25 | 北京理工大学 | Igniting system based on piston straight-line displacement signals |
Non-Patent Citations (1)
| Title |
|---|
| 顾柏良 等译.BOSCH汽车工程手册（中文第2版）.《BOSCH汽车工程手册（中文第2版）》.北京理工大学出版社,2007,525. * |
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| Publication number | Publication date |
|---|---|
| CN101761438A (en) | 2010-06-30 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20121121 Termination date: 20131223 |