CN105490528A - High-voltage shunt circuit for ignition system - Google Patents
High-voltage shunt circuit for ignition system Download PDFInfo
- Publication number
- CN105490528A CN105490528A CN201511022219.2A CN201511022219A CN105490528A CN 105490528 A CN105490528 A CN 105490528A CN 201511022219 A CN201511022219 A CN 201511022219A CN 105490528 A CN105490528 A CN 105490528A
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- CN
- China
- Prior art keywords
- circuit
- ignition system
- mosfet
- voltage
- wave generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/125—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M3/135—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P3/00—Other installations
- F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
- F02P3/04—Layout of circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P3/00—Other installations
- F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
- F02P3/04—Layout of circuits
- F02P3/05—Layout of circuits for control of the magnitude of the current in the ignition coil
Abstract
The invention discloses a high-voltage shunt circuit for an ignition system. The high-voltage shunt circuit comprises a drive unit and a plurality of thyristors, wherein the drive unit comprises a square-wave generator, an MOSFET drive chip, an MOSFET and a plurality of rectifier circuits; an input end of the square-wave generator is electrically connected with an ECU; an output end of the square-wave generator is electrically connected with the input end of the MOSFET drive chip; the MOSFET is connected with the MOSFET drive chip and the rectifier circuits respectively; each thyristor corresponds to one rectifier circuit; all thyristors are sequentially connected with one another in series; input ends of the thyristors are connected with a high-voltage energy storage device; and output ends are connected with a secondary coil of an ignition coil in the ignition system. The plurality of thyristors are connected in series to form the high-voltage shunt circuit with a higher withstand voltage, so that the problem of high-voltage shunting of a high-energy ignition system with the high-voltage energy storage device can be solved.
Description
Technical field
The present invention is relevant with the ignition system of engine, specifically belongs to a kind of high-pressure shunting circuit of the Thyristors in series for ignition system.
Background technology
The ignition system of engine mainly comprises electronic control unit (ElectronicControlUnit, be called for short ECU), relevant to ignition system transducer, ignition switch, ignition coil and spark plug, wherein ignition coil is the kernel component of engine igniting system, as shown in Figure 1, primary structure comprises the iron core of primary coil, secondary coil and magnetic conduction.
At present, as shown in Figure 1, ignition switch is controlled by Engine ECU the mode of operation of the engine igniting system of main flow.During charging, ECU Received signal strength carries out processing and exports control signal makes ignition switch open, and primary coil starts charging, and energy storage in the core which; At engine igniting time, ECU sends control signal again makes ignition switch close rapidly, and the current break in primary coil causes the magnetic field of iron core to suddenly change, and secondary coil is instantaneous induces tens thousand of volt high pressure, punctures gaseous mixture complete engine ignition by spark plug.
Along with day by day harsh to fuel consumption and emission of regulation, and the pursuit to engine power performance, in addition new technology is as supercharging, straight spray, lean burn, homogeneous combustion and high EGR (ExhaustGasRecirculation, be called for short EGR) appearance of rate engine, more and more higher requirement is proposed to engine igniting system, especially ignition energy.Due to the restriction of installation dimension, ignition coil can not increase Energy transmission simply by increase size, and as the ignition coil of ignition system kernel component, when the structure of ignition coil is fixed, coil can store the finite energy transmitted, at all cannot according to the actual demand free adjustment ignition energy of engine.
In order to solve the problem, on the basis of main flow ignition system, increase high-voltage energy-storage device is at present that secondary coil injects extra energy, and realizes the free adjustment of ignition energy by the opening/closing time controlling high-voltage switch gear, as shown in Figure 2.But the voltage of high-voltage energy-storage device can reach thousands of volt usually, greatly exceed the maximum withstand voltage of current Single Electron switch, therefore there is dividing potential drop problem.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of high-pressure shunting circuit for ignition system, can solve the high-pressure shunting problem of the ignition system of band high-voltage energy-storage device.
For solving the problems of the technologies described above, high-pressure shunting circuit for ignition system provided by the invention comprises driver element and some thyristors, wherein driver element comprises square-wave generator, MOSFET driving chip, MOSFET (Metal-Oxide-SemiconductorField-EffectTransistor, i.e. metal-oxide semiconductor fieldeffect transistor, is called for short metal-oxide half field effect transistor) and some rectification circuits; The input of described square-wave generator and ECU are electrically connected, and the output of square-wave generator and the input of MOSFET driving chip are electrically connected, and MOSFET is connected with MOSFET driving chip, rectification circuit respectively; The corresponding rectification circuit of each thyristor, all thyristors are connected successively and input is connected with high-voltage energy-storage device, output is connected with the secondary coil of ignition coil in ignition system.
Wherein, each rectification circuit comprises transformer and rectifier diode, the primary coil of described transformer and MOSFET are electrically connected, and one end of secondary coil is connected by the gate pole of rectifier diode with corresponding thyristor, and the other end of secondary coil is connected with the negative electrode of corresponding thyristor.The G end of described MOSFET is connected with MOSFET driving chip, and D end is connected with the primary coil of transformer, and S holds ground connection.
Further, the series circuit of described thyristor composition and a static state voltage equipoise circuit in parallel.Wherein, described static state voltage equipoise circuit is grading resistor.
Further, the series circuit of described thyristor composition is in parallel with a dynamic voltage-balancing.Wherein, described dynamic voltage-balancing comprises dynamic voltage balancing resistance and the electric capacity of series connection.
In foregoing circuit, described square-wave generator is high frequency square wave generator.
The present invention is by forming a withstand voltage higher high-pressure shunting circuit by some Thyristors in series, the high-pressure shunting problem of the high-energy ignition system of band high-voltage energy-storage device can be solved like this, the energy of high-voltage energy-storage device is input in an orderly manner the secondary coil of corresponding points fire coil, thus reaches the effect extending discharge time, increase ignition energy, reduce the probability that catches fire, improve combustion efficiency, emissions reduction, increase Power output.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing ignition system;
Fig. 2 is the schematic diagram of the ignition system containing high-pressure shunting circuit of the present invention and high-voltage energy-storage device;
Fig. 3 is the schematic diagram of high-pressure shunting circuit of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is further detailed explanation.
High-pressure shunting circuit for ignition system of the present invention, be applicable to the ignition system being with high-voltage energy-storage device, as shown in Figure 2, a high-voltage energy-storage device is connected with the secondary coil of corresponding ignition coil respectively by some high-voltage switch gears and controls the open-minded of respective point fire coil high-voltage switch gear by ECU, thus realizes high-voltage energy-storage device and be followed successively by secondary coil afterflow.Because all ignition coils share a high-voltage energy-storage device, it can produce thousands of volt high pressure, so each ignition coil is equipped with a high-pressure shunting circuit, this high-pressure shunting circuit is equivalent to high-voltage switch gear, as described in Figure 3, comprise driver element and some thyristors, wherein driver element comprises square-wave generator, MOSFET driving chip, MOSFET and some rectification circuits; The input of square-wave generator and ECU are electrically connected, and the output of square-wave generator and the input of MOSFET driving chip are electrically connected, and MOSFET is connected with MOSFET driving chip, rectification circuit respectively; The corresponding rectification circuit of each thyristor, all thyristors are connected successively and input is connected with high-voltage energy-storage device, output is connected with the secondary coil of ignition coil in ignition system.In foregoing circuit, described square-wave generator is high frequency square wave generator.Such as, the operating frequency of square-wave generator is 10KHZ ~ 100KHZ.
In this embodiment, each rectification circuit comprises transformer and rectifier diode, the primary coil of described transformer and the D of MOSFET hold, and (namely draining) is electrically connected, one end of secondary coil is connected by the gate pole of rectifier diode with corresponding thyristor, and the other end of secondary coil is connected with the negative electrode of corresponding thyristor.G end (i.e. grid) of MOSFET is connected with MOSFET driving chip, and S holds (i.e. source electrode) ground connection.
In addition, in order to realize static state voltage equipoise and dynamic voltage balancing, the series circuit be made up of all thyristors is in parallel with a static state voltage equipoise circuit, a dynamic voltage-balancing respectively.Wherein, static state voltage equipoise circuit generally adopts grading resistor, by realizing static state voltage equipoise with Thyristors in series circuit in parallel resistance, dynamic voltage-balancing generally adopts dynamic voltage balancing resistance, electric capacity, by realizing dynamic voltage balancing with Thyristors in series circuit in parallel resistance, electric capacity.
The present invention adopts the high-pressure shunting circuit of Thyristors in series, its mode of operation and performance as follows:
1) signal transmission is realized: according to igniting sequential, when needs are by a certain to engine for high-pressure delivery cylinder, ECU sends a signal to corresponding high frequency square wave generator, it can produce the high-frequency signal of certain duty ratio to MOSFET driving chip, thus driven MOS FET realizes the HF switch of transformer, transformer generation current pulse signal in HF switch process controls the switch of corresponding thyristor;
2) thyristor synchronously drives and synchronous conducting: adopt same MOSFET to drive two or more transformer, ensures the consistency of transformer drive signal; The while of multi-thread by transformer secondary output, coiling ensures the consistency of transformer output signal, i.e. the consistency of thyristor driver signal; Regulate transformer secondary output electric capacity, make the rate of rise of thyristor driver signal reach thyristor driver requirement, be conducive to ensureing the synchronous conducting of thyristor;
3) static state voltage equipoise and dynamic voltage balancing: by being Thyristors in series circuit in parallel static state voltage equipoise circuit and dynamic voltage-balancing, solve static state voltage equipoise and the dynamic voltage balancing problem of thyristor;
4) high-voltage problem: transformer secondary output exists thousands of volt high pressure, transformer and associated electronics all need to meet high pressure requirement, carry out the internal high pressure insulation of circuit board, and carry out external high pressure insulation simultaneously in wiring process.
The present invention is by forming a withstand voltage higher high-pressure shunting circuit by some Thyristors in series, the high-pressure shunting problem of the high-energy ignition system of band high-voltage energy-storage device can be solved like this, utilize some high-pressure shunting circuit the energy of high-voltage energy-storage device to be input in an orderly manner the secondary coil of corresponding points fire coil, thus reach the effect extending discharge time, increase ignition energy, reduce the probability that catches fire, improve combustion efficiency, emissions reduction, increase Power output.
Above by specific embodiment to invention has been detailed description, described embodiment is only preferred embodiment of the present invention, and it not limits the invention.Without departing from the principles of the present invention, the equivalent replacement that the type etc. of those skilled in the art to electronic devices and components is made and improvement, all should be considered as in the technology category protected in the present invention.
Claims (8)
1. for a high-pressure shunting circuit for ignition system, it is characterized in that, comprise driver element and some thyristors, wherein driver element comprises square-wave generator, MOSFET driving chip, MOSFET and some rectification circuits; The input of described square-wave generator and ECU are electrically connected, and the output of square-wave generator and the input of MOSFET driving chip are electrically connected, and MOSFET is connected with MOSFET driving chip, rectification circuit respectively; The corresponding rectification circuit of each thyristor, all thyristors are connected successively and input is connected with high-voltage energy-storage device, output is connected with the secondary coil of ignition coil in ignition system.
2. the high-pressure shunting circuit for ignition system according to claim 1, it is characterized in that, each rectification circuit comprises transformer and rectifier diode, the primary coil of described transformer and MOSFET are electrically connected, one end of secondary coil is connected by the gate pole of rectifier diode with corresponding thyristor, and the other end of secondary coil is connected with the negative electrode of corresponding thyristor.
3. the high-pressure shunting circuit for ignition system according to claim 2, is characterized in that, the G end of described MOSFET is connected with MOSFET driving chip, and D end is connected with the primary coil of transformer, and S holds ground connection.
4. the high-pressure shunting circuit for ignition system according to claim 1, is characterized in that, the series circuit of described thyristor composition and a static state voltage equipoise circuit in parallel.
5. the high-pressure shunting circuit for ignition system according to claim 4, is characterized in that, described static state voltage equipoise circuit is grading resistor.
6. the high-pressure shunting circuit for ignition system according to claim 1, is characterized in that, the series circuit of described thyristor composition is in parallel with a dynamic voltage-balancing.
7. the high-pressure shunting circuit for ignition system according to claim 6, is characterized in that, described dynamic voltage-balancing comprises dynamic voltage balancing resistance and the electric capacity of series connection.
8. the high-pressure shunting circuit for ignition system according to claim 1, is characterized in that, described square-wave generator is high frequency square wave generator.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511022219.2A CN105490528B (en) | 2015-12-30 | 2015-12-30 | High-pressure shunting circuit for ignition system |
| PCT/CN2016/103661 WO2017113969A1 (en) | 2015-12-30 | 2016-10-28 | High-voltage shunt circuit for ignition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511022219.2A CN105490528B (en) | 2015-12-30 | 2015-12-30 | High-pressure shunting circuit for ignition system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105490528A true CN105490528A (en) | 2016-04-13 |
| CN105490528B CN105490528B (en) | 2018-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511022219.2A Active CN105490528B (en) | 2015-12-30 | 2015-12-30 | High-pressure shunting circuit for ignition system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105490528B (en) |
| WO (1) | WO2017113969A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017113969A1 (en) * | 2015-12-30 | 2017-07-06 | 联合汽车电子有限公司 | High-voltage shunt circuit for ignition system |
| CN108173431A (en) * | 2016-12-07 | 2018-06-15 | 特变电工新疆新能源股份有限公司 | High voltage direct current based on synchronous conducting technology takes can converter |
| CN110206673A (en) * | 2019-05-20 | 2019-09-06 | 上海交通大学 | High-energy discharge igniter and its control method |
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| US20020046745A1 (en) * | 2000-10-24 | 2002-04-25 | Noboru Nagase | Engine ignition system having fail-safe function |
| CN104564479A (en) * | 2014-12-29 | 2015-04-29 | 联合汽车电子有限公司 | Engine ignition system and method |
| CN204610119U (en) * | 2015-03-12 | 2015-09-02 | 浙江吉利控股集团有限公司 | For the ignition system of serial mixed power vehicle |
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| CN105490528B (en) * | 2015-12-30 | 2018-08-21 | 联合汽车电子有限公司 | High-pressure shunting circuit for ignition system |
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2015
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-
2016
- 2016-10-28 WO PCT/CN2016/103661 patent/WO2017113969A1/en active Application Filing
Patent Citations (4)
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| US20020046745A1 (en) * | 2000-10-24 | 2002-04-25 | Noboru Nagase | Engine ignition system having fail-safe function |
| CN104564479A (en) * | 2014-12-29 | 2015-04-29 | 联合汽车电子有限公司 | Engine ignition system and method |
| CN204610119U (en) * | 2015-03-12 | 2015-09-02 | 浙江吉利控股集团有限公司 | For the ignition system of serial mixed power vehicle |
| CN205377660U (en) * | 2015-12-30 | 2016-07-06 | 联合汽车电子有限公司 | A high -pressure branch circuit for ignition system |
Non-Patent Citations (1)
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| 王毅等: ""晶闸管串联运行的暂态仿真分析"", 《中国电机工程学会第八届青年学术会议》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017113969A1 (en) * | 2015-12-30 | 2017-07-06 | 联合汽车电子有限公司 | High-voltage shunt circuit for ignition system |
| CN108173431A (en) * | 2016-12-07 | 2018-06-15 | 特变电工新疆新能源股份有限公司 | High voltage direct current based on synchronous conducting technology takes can converter |
| CN108173431B (en) * | 2016-12-07 | 2022-06-24 | 特变电工新疆新能源股份有限公司 | High-voltage direct-current energy-taking converter based on synchronous conduction technology |
| CN110206673A (en) * | 2019-05-20 | 2019-09-06 | 上海交通大学 | High-energy discharge igniter and its control method |
| CN110206673B (en) * | 2019-05-20 | 2020-04-28 | 上海交通大学 | High-energy discharge ignition device and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105490528B (en) | 2018-08-21 |
| WO2017113969A1 (en) | 2017-07-06 |
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