CN1651742A - Integrated bivoltage electromagnet valve driven circuit - Google Patents
Integrated bivoltage electromagnet valve driven circuit Download PDFInfo
- Publication number
- CN1651742A CN1651742A CN 200510011109 CN200510011109A CN1651742A CN 1651742 A CN1651742 A CN 1651742A CN 200510011109 CN200510011109 CN 200510011109 CN 200510011109 A CN200510011109 A CN 200510011109A CN 1651742 A CN1651742 A CN 1651742A
- Authority
- CN
- China
- Prior art keywords
- low
- circuit
- drive
- pliotron
- solenoid valve
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 9
- 238000005070 sampling Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 abstract description 17
- 239000007924 injection Substances 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 abstract description 8
- 239000000295 fuel oil Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 27
- 238000010586 diagram Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Images
Landscapes
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The integrated double-voltage electromagnetic valve drive circuit relates to electromagnetic valve drive in fuel oil injection system of electrically-operated diesel engine, belonging to the field of electromagnetic valve drive related technology. It includes high-end drive circuit, low-end drive circuit and DC/DC expander circuit, in which the high-end drive circuit and low-end drive circuit are formed into the invented double-voltage drive circuit, and the exterior-connected diode and capacitor of the double-voltage drive circuit are formed into the integrated DC/DC circuit. Said invention also provides the connection mode of the above-mentioned diode and capacitor.
Description
Technical field
Integrated bivoltage electromagnet valve driven circuit relates to the solenoid-driven in the electronic controlled diesel fuel injection system, belongs to the solenoid-driven correlative technology field.
Background technique
In traditional electric control fuel oil jet system, corresponding each compression stroke, solenoid valve only moves once, promptly can only finish fuel injection action.And in the modern electric control fuel oil jet system, solenoid valve may move repeatedly in a compression stroke, and fuel oil is sprayed into the firing chamber stage by stage, and this technology is called as the multi-injection technology.Because the multi-injection technology all shows great potential at aspects such as reducing noise, minimizing discharging, so this technology has obtained application more and more widely.The multi-injection The Application of Technology requires solenoid valve can finish the multiple switching action in a short period of time, and this capability of fast response to solenoid valve has proposed very high requirement.The response capability of solenoid valve is determined jointly by solenoid valve internal mechanical structure, drive circuit, driven strategy works usually.Present stage for shortening the solenoid valve response time, the drive circuit pair Voltag driving circuits that adopt more.This circuit has two driving powers: high voltage drive power supply and low voltage drive power supply, its concrete drive circuit can be with reference to patent " a kind of motor driving circuit for electromagnetic valve " (application number: 200410033776.x), this circuit working process is: during the solenoid valve action, the high drive power supply is work earlier, can rapidly electromagnetic valve driving current be promoted to higher level to obtain bigger electromagnetic force; Afterwards, the low-voltage driving power work, driving current successively enters the PWM stage of modulating twice, for the first time in the PWM stage of modulating, driving current maintains in the higher scope, can obtain the pass closed procedure that bigger electromagnetic force is accelerated solenoid valve when reducing power consumption, behind closed electromagnetic valve, driving current enters PWM stage of modulating for the second time, and maintain in the lower scope, at this moment, lower electromagnetic force can keep the closed condition of solenoid valve, until finishing whole injection action.This patent has only proposed the basic structure of two Voltag driving circuits, does not relate to the acquiring way of its used high drive power supply.
Current, how the high voltage drive power supply in two Voltag driving circuits obtains by external booster circuit, and this external booster circuit as power supply, can adopt multiple modes such as DC/DC conversion, transformer to realize with Vehicular accumulator cell.
External booster circuit commonly used adopts the DC/DC converter technique more, and its critical piece comprises inductance, electric capacity, pliotron, diode etc., and its circuit theory diagrams as shown in Figure 1.Though this scheme has advantages such as the control of being easy to, but its shortcoming is also very obvious: at first, because the multi-injection action request is finished at short notice, so the inductance in the booster circuit need have higher sense value so that abundant energy is provided in the short period of time, this will cause this inductance volume excessive, be not easy to the design of drive circuit; Secondly, the electric current of inductance is controlled by a pwm signal owing to flow through in this booster circuit, and the frequency of this pwm control signal is very high, the electric current of inductance has the very AC compounent of high frequency so flow through, this will cause very serious electromagnetic interference, be unfavorable for the electromagnetic compatibility system design of drive circuit control system.
Summary of the invention
The objective of the invention is to the DC/DC booster circuit is integrated in existing two Voltag driving circuit, thereby save external special-purpose booster circuit.The present invention adopts the solenoid valve of two Voltag driving circuits as DC/DC circuit inductance parts, on the basis of former drive circuit, has formed the DC/DC circuit by increasing small number of devices, thereby need not to connect special-purpose booster circuit again; And devices such as the inductance in this DC/DC circuit, triode all can adopt former pair of Voltag driving circuit device, main body and former pair of Voltag driving circuit of this DC/DC circuit can be integrated, so with the two Voltag driving circuits of called after integrated form of the present invention.
A kind of integrated bivoltage electromagnet valve driven circuit comprises high-end drive circuit, low-side driver circuitry and DC/DC expander three parts.Wherein, high-end drive circuit and low-side driver circuitry have been formed two Voltag driving circuits.
High-end drive circuit comprises high pressure and low pressure two cover drive circuits.
High-voltage driving circuit comprises high drive power supply and two parts of high-voltage power triode.Wherein, the high drive power supply is connected to the drain electrode of high-voltage power triode, and the grid of high-voltage power triode connects control signal, and the source electrode of high-voltage power triode links to each other with the common port of solenoid valve, and also promptly all solenoid valves all have an end directly to link this common port;
Low-voltage driving circuit comprises low-voltage driving power supply, low pressure and low power triode and three parts of protection diode.Wherein, the low-voltage driving power supply is connected to the drain electrode of pliotron, and the grid of pliotron connects control signal, and the source electrode of pliotron links to each other with the anode of protection diode, and the negative electrode of protection diode links to each other with the solenoid valve common port.
Low-side driver circuitry is positioned at the other end of solenoid valve, comprises a sampling resistor, a cascading water diode and several low side pliotrons, and the number of low side pliotron should be identical with the drive cylinder number, the corresponding low side pliotron of promptly every cylinder.
Wherein, the drain electrode of each low side pliotron connects an end of respective cylinder solenoid valve respectively, grid connects the low side control signal of each cylinder, source electrode links to each other, be connected to an end of sampling resistor jointly, the other end ground connection of sampling resistor, the anode of cascading water diode are connected to the common port that each low side pliotron source electrode links to each other, and negative electrode is connected to the common port that each solenoid valve links to each other in the high-end drive circuit.
The DC/DC expander is positioned at outside the drive circuit, comprises a storage capacitor and several protection diode compositions, and the number of diode should be identical with the drive cylinder number, the corresponding protection diode of promptly every cylinder.Wherein, storage capacitor one end ground connection, another termination high drive power supply, the anode of each protection diode is connected to the drain electrode of corresponding low side pliotron respectively, and negative electrode attaches to the high drive power supply jointly.
Compared with prior art, beneficial effect of the present invention is:
(1) saves raw material.Among the present invention, the DC/DC circuit has adopted original solenoid valve of two Voltag driving circuits and triode, only need external small number of devices and rationalization's control signal can form complete DC/DC circuit, integrated DC/DC circuit at the drive circuit Internal success, so need not to re-use complete external booster circuit, thereby saved a large amount of raw material.
(2) simplify circuit design.In the conventional ADS driving circuit, which kind of technology external booster circuit adopts all to adopt high sense value inductance, and its volume is often bigger, and this has caused drive circuit components and parts difficult arrangement; Simultaneously, long-time running high frequency, big current signal in this inductance element, this has also strengthened the difficulty of drive circuit electromagnetic Compatibility Design.Among the present invention, adopt to be placed on the outer fuel injector magnetic system of drive circuit, thereby avoided the problems referred to above as the DC/DC inductance.
Description of drawings
Fig. 1 is two Voltag driving circuit schematic diagrams of traditional external special-purpose DC/DC booster circuit.
Fig. 2 is drive circuit schematic diagram of the present invention (is example to drive four-way solenoid valve).
Fig. 3 is the control signal of Fig. 2 working procedure.
Fig. 4 is the work wave of DC/DC circuit.
Embodiment
Describe physical circuit of the present invention and working procedure in detail below in conjunction with embodiment and accompanying drawing.
Fig. 1 is two Voltag driving circuit schematic diagrams of traditional external special-purpose DC/DC booster circuit.In the traditional double Voltag driving circuit, include only high-end drive circuit, low-side driver circuitry two-part.High-end drive circuit is positioned at solenoid valve one end, comprises high drive power supply and low-voltage driving power supply and control triode thereof, and its high drive power supply relies on external complete DC/DC booster circuit to obtain; The DC/DC circuit comprises parts such as special-purpose inductance, electric capacity, diode, triode; Low-side driver circuitry is positioned at the solenoid valve the other end, comprises the triode that equates with the solenoid valve number.During this system works, the high pressure in the drive circuit, low-voltage driving power supply are successively worked, and finish the closing motion of solenoid valve; In the booster circuit, triode is controlled by a pwm signal, can charge into energy in electric capacity, until reaching requirement voltage.In the whole system, drive circuit and booster circuit are worked respectively, there is no specific contact between the two.
Fig. 2 is a drive circuit schematic diagram of the present invention.The present invention mainly comprises high-end drive circuit, low-side driver circuitry and DC/DC expander three parts.Wherein, high-end drive circuit and the low-side driver circuitry with two cover driving powers formed two Voltag driving circuits.To drive four cylinder solenoid valves is that example illustrates this circuit.
High-end drive circuit is positioned at solenoid valve L
1-L
4One end comprises that two overlap independently driving power and pliotron, and a cover comprises high drive power supply U
HWith high-voltage power triode M
H, wherein, the high drive supply voltage more than 60V, high-voltage power triode M
HBy control signal A
HControl.The another set of low-voltage driving power supply U that comprises
LWith low pressure and low power triode M
L, two pliotron M
HAnd M
LBetween adopt diode D
0Realize insulation blocking, wherein, the low-voltage driving power supply directly uses 24V Vehicular accumulator cell power supply, low pressure and low power triode M
LBy control signal A
LControl.
Low-side driver circuitry is positioned at solenoid valve L
1-L
4The other end comprises four pliotron M
1-M
4, its number should equal the engine electromagnetic valve number, and these pliotrons are connected between each solenoid valve and the power supply ground, its control signal B
1-B
4Directly send by engine electronic control unit (ECU).Be provided with sustained diode at each solenoid valve common port
5
The DC/DC expander is positioned at outside the drive circuit, comprises four diode D
1-D
4With storage capacitor C
1Diode D
1-D
4One termination high voltage drive power supply, the other end is connected between low-side driver circuitry pliotron and the solenoid valve, and its number should equal the engine electromagnetic valve number.Capacitor C
1Between high voltage drive power supply and power supply ground.
Fig. 3 is the control signal of Fig. 2 working procedure.Seeing Fig. 3, is example to drive four cylinder solenoid valves, and the working procedure of this drive circuit is described:
(1) T
A1Constantly to T
A2Constantly, finish the first cylinder injection action.This course of action can be by changing control signal A
H, A
LAnd B
1Waveform is realized: T
A1Constantly, A
H, A
LAnd B
1Saltus step simultaneously is a high level, and the course of injection of corresponding first cylinder begins.Wherein, A
HConducting a period of time makes the high drive power supply promote driving current rapidly; A
LSuccessively enter the PWM stage of modulating twice according to drive current setpoint, driving current is maintained in the setting range; B
1Be always high, realize selecting the cylinder function.Whole injection action is to T
A2Constantly finish, three control signals all saltus step are low level.
(2) T
A3Constantly to T
A4Constantly, rely on the DC/DC circuit to realize boosting inverter.In this working procedure, need use clutch release slave cylinder (be first cylinder this moment) solenoid valve in addition as the DC/DC circuit inductance, choosing and having no special requirements of this inductance can be chosen each the cylinder solenoid valve except that clutch release slave cylinder wantonly.In this example, chosen the 4th cylinder solenoid valve as the DC/DC circuit inductance.
Concrete working procedure is as follows: T
A3Constantly, A
LSaltus step is a high level, B
4Enter the PWM modulated process, rely on the 4th cylinder solenoid valve to finish the boost chopper process.Specifically DC/DC circuit working waveform as shown in Figure 4: T
A3Constantly, B
4, A
LThe control signal saltus step is a high level, makes triode M
4, M
LConducting, the 4th cylinder solenoid valve is connected the low-voltage driving power supply, and electric current I begins to rise in the inductance, and energy is stored in the solenoid valve; T
1Constantly, B
4Saltus step is a low level, M
4Disconnect, solenoid valve produces induction electromotive force, breakdown diode D
4, be stored in energy in the solenoid valve and be transformed in the load by this diode and go.T
2Constantly, B
4Saltus step is a high level, and solenoid valve begins stored energy.T
3Constantly, B
4Saltus step is a low level, and solenoid valve begins the energy of releasing.And so forth, up to T
A4Constantly, the capacitor C of high drive power supply
1Receive abundant energy, make driving voltage reach the requirement of normal injection.At this moment, the DC/DC process of boosting finishes, and all signals become low level.
At T
A3To T
A4In time period, rely on B
4Control signal realizes the PWM modulated process, finishes by low tension power supply to solenoid valve, and solenoid valve is again to the conversion process of energy of high-voltage power.In this process, should note controlling current peak I
P, because too high I
PValue will be opened solenoid valve, cause abnormal injection.Can adopt feeder loop control I
PValue realizes B
4The PWM modulated process of control signal.
(3) T
B1Constantly to T
B2Constantly, finish the 3rd cylinder injection action, the control procedure and first cylinder are similar.
(4) T
B3Constantly to T
B4Constantly, can rely on the second cylinder solenoid valve to form the DC/DC circuit, finish the charging process to the high drive power supply, control procedure and the 4th cylinder are similar.
(5) T
C1Constantly to T
C2Constantly, finish the 4th cylinder injection action, the control procedure and first cylinder are similar.
(6) T
C3Constantly to T
C4Constantly, can rely on the first cylinder solenoid valve to form the DC/DC circuit, finish the charging process to the high drive power supply, control procedure and the 4th cylinder are similar.
(7) T
D1Constantly to T
D2Constantly, finish the second cylinder injection action, the control procedure and first cylinder are similar.
(8) T
D3Constantly to T
D4Constantly, can rely on the first cylinder solenoid valve to form the DC/DC circuit, finish the charging process to the high drive power supply, control procedure and the 4th cylinder are similar.
So far, a work cycle finishes.
The present invention compared with prior art has the following advantages and effect: after every cylinder normal injection, rely on external a small amount of first device Part, and adopt inoperative cylinder magnetic valve as the DC/DC circuit inductance, can finish the charging process to the high drive power supply, thereby Save special-purpose booster circuit, had the saving raw material, simplified circuit design, reduced the advantages such as circuit electromagnetic pollution.
Claims (4)
1, a kind of integrated bivoltage electromagnet valve driven circuit is characterized in that, this drive circuit comprises high-end drive circuit, low-side driver circuitry and DC/DC expander, and wherein, high-end drive circuit and low-side driver circuitry have been formed two Voltag driving circuits;
High-end drive circuit comprises high pressure and low pressure two cover drive circuits:
High-voltage driving circuit comprises high drive power supply and high-voltage power triode, and the high drive power supply is connected to the drain electrode of high-voltage power triode, and the grid of high-voltage power triode connects control signal, and the source electrode of high-voltage power triode links to each other with the common port of solenoid valve;
Low-voltage driving circuit comprises low-voltage driving power supply, low pressure and low power triode and protection diode, the low-voltage driving power output end connects the drain electrode of pliotron, the grid of pliotron connects control signal, the source electrode of pliotron links to each other with the anode of protection diode, and the negative electrode of protection diode links to each other with the solenoid valve common port;
Low-side driver circuitry is positioned at the other end of solenoid valve, comprises a sampling resistor, a cascading water diode and several low side pliotrons; The drain electrode of each low side pliotron connects an end of respective cylinder solenoid valve respectively, grid connects the low side control signal of each cylinder, source electrode links to each other, be connected to an end of sampling resistor jointly, the other end ground connection of sampling resistor, the anode of cascading water diode is connected to the common port that each low side pliotron source electrode links to each other, and negative electrode is connected to the common port that each solenoid valve links to each other in the high-end drive circuit;
The DC/DC expander is positioned at outside the drive circuit; comprise a storage capacitor and several protection diode compositions; storage capacitor one end ground connection; another termination high drive power supply; the anode of each protection diode is connected to the drain electrode of corresponding low side pliotron respectively, and negative electrode attaches to the high drive power supply jointly.
2, integrated bivoltage electromagnet valve driven circuit according to claim 1 is characterized in that, all solenoid valves all have an end directly to link this common port.
3, integrated bivoltage electromagnet valve driven circuit according to claim 1 is characterized in that, the number of low side pliotron should be identical with the drive cylinder number, the corresponding low side pliotron of promptly every cylinder.
4, integrated bivoltage electromagnet valve driven circuit according to claim 1 is characterized in that, the number of diode should be identical with the drive cylinder number, the corresponding protection diode of promptly every cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100111096A CN100356052C (en) | 2005-01-07 | 2005-01-07 | Integrated bivoltage electromagnet valve driven circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100111096A CN100356052C (en) | 2005-01-07 | 2005-01-07 | Integrated bivoltage electromagnet valve driven circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1651742A true CN1651742A (en) | 2005-08-10 |
| CN100356052C CN100356052C (en) | 2007-12-19 |
Family
ID=34875455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100111096A Expired - Fee Related CN100356052C (en) | 2005-01-07 | 2005-01-07 | Integrated bivoltage electromagnet valve driven circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100356052C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100402824C (en) * | 2006-07-23 | 2008-07-16 | 燕山大学 | Electrojet engine variable working displacement control technique |
| CN101813032A (en) * | 2010-03-17 | 2010-08-25 | 清华大学 | Electromagnetic valve driving circuit of diesel engine |
| CN1967035B (en) * | 2006-10-19 | 2011-02-02 | 上海凌同电子科技有限公司 | Double-peak-voltage holding high-speed solenoid valve drive circuit |
| CN101737551B (en) * | 2010-02-02 | 2011-08-17 | 中国航天科技集团公司烽火机械厂 | High-speed electromagnetic valve driver circuit |
| CN102278220A (en) * | 2011-07-01 | 2011-12-14 | 天津大学 | Novel free-wheeling circuit for electronically controlled injector of diesel engine |
| CN102865401A (en) * | 2011-07-04 | 2013-01-09 | 贵州红林机械有限公司 | Duel-voltage, duel-maintenance and duel-follow current driving circuit |
| CN103104363A (en) * | 2013-01-25 | 2013-05-15 | 常州易控汽车电子有限公司 | Engine magnetic valve drive circuit and control method thereof |
| CN105301153A (en) * | 2014-06-20 | 2016-02-03 | 北京普源精电科技有限公司 | Liquid chromatograph with gradient valve controlling circuit and control method of liquid chromatograph |
| CN112746908A (en) * | 2021-01-15 | 2021-05-04 | 无锡职业技术学院 | Novel diesel engine high pressure common rail piezoelectric ceramic oil injector driving control system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08246931A (en) * | 1995-03-15 | 1996-09-24 | Nippondenso Co Ltd | Solenoid valve driving device |
| JP3458568B2 (en) * | 1995-11-29 | 2003-10-20 | 株式会社デンソー | Solenoid valve control device for fuel injection device |
| JP4119116B2 (en) * | 2001-08-02 | 2008-07-16 | 株式会社ミクニ | Fuel injection method |
| CN2581702Y (en) * | 2002-11-22 | 2003-10-22 | 清华大学 | Electrocontrolled diesel oil injector |
-
2005
- 2005-01-07 CN CNB2005100111096A patent/CN100356052C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100402824C (en) * | 2006-07-23 | 2008-07-16 | 燕山大学 | Electrojet engine variable working displacement control technique |
| CN1967035B (en) * | 2006-10-19 | 2011-02-02 | 上海凌同电子科技有限公司 | Double-peak-voltage holding high-speed solenoid valve drive circuit |
| CN101737551B (en) * | 2010-02-02 | 2011-08-17 | 中国航天科技集团公司烽火机械厂 | High-speed electromagnetic valve driver circuit |
| CN101813032A (en) * | 2010-03-17 | 2010-08-25 | 清华大学 | Electromagnetic valve driving circuit of diesel engine |
| CN102278220A (en) * | 2011-07-01 | 2011-12-14 | 天津大学 | Novel free-wheeling circuit for electronically controlled injector of diesel engine |
| CN102865401A (en) * | 2011-07-04 | 2013-01-09 | 贵州红林机械有限公司 | Duel-voltage, duel-maintenance and duel-follow current driving circuit |
| CN103104363A (en) * | 2013-01-25 | 2013-05-15 | 常州易控汽车电子有限公司 | Engine magnetic valve drive circuit and control method thereof |
| CN103104363B (en) * | 2013-01-25 | 2015-09-30 | 常州易控汽车电子有限公司 | A kind of engine magnetic valve drive circuit and controlling method thereof |
| CN105301153A (en) * | 2014-06-20 | 2016-02-03 | 北京普源精电科技有限公司 | Liquid chromatograph with gradient valve controlling circuit and control method of liquid chromatograph |
| CN112746908A (en) * | 2021-01-15 | 2021-05-04 | 无锡职业技术学院 | Novel diesel engine high pressure common rail piezoelectric ceramic oil injector driving control system |
| CN112746908B (en) * | 2021-01-15 | 2021-11-12 | 无锡职业技术学院 | Driving control system for high-pressure common-rail piezoelectric ceramic oil injector of diesel engine |
| WO2022151810A1 (en) * | 2021-01-15 | 2022-07-21 | 无锡职业技术学院 | Novel drive control system for high-voltage common rail piezoelectric ceramic fuel injector of diesel engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100356052C (en) | 2007-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106838432B (en) | A kind of electronically controlled unit pump driving circuit for electromagnetic valve and its control method | |
| CN100350729C (en) | Double ended isolated DC-DC converter | |
| CN103053105B (en) | Two-way current double-boost quadratic DC/DC transducer | |
| CN1317501C (en) | Electromagnetic valve drive circuit for engine | |
| CN1900573A (en) | Solenoid-operated valve actuating controller | |
| CN103532390A (en) | Control Method of Bidirectional DC/DC Converter | |
| CN105422963B (en) | Engine electric-controlled single pump electromagnetic valve control circuit | |
| CN101477870A (en) | Generation method and apparatus for electromagnetic valve driving current | |
| CN100356052C (en) | Integrated bivoltage electromagnet valve driven circuit | |
| CN2937707Y (en) | Drive device of high speed magnetic valve | |
| CN1728497A (en) | Drive circuit of high and low level switch combination with voltage boost circuit | |
| CN104747333A (en) | Integrated drive circuit for high pressure common rail injectors | |
| US20090323246A1 (en) | Method, device, injector and control unit for triggering an injector | |
| CN202091047U (en) | High-voltage suspension electromagnetic valve driving circuit based on IR2110 technology | |
| CN202165166U (en) | Driving circuit of electromagnetic valve of oil spraying system of diesel engine | |
| CN108199579A (en) | A kind of high no-load voltage ratio Sofe Switch DC-DC buck converters with coupling inductance | |
| CN112746908B (en) | Driving control system for high-pressure common-rail piezoelectric ceramic oil injector of diesel engine | |
| CN104819062B (en) | Fuel injector dual-power bi-side driving clamping pressure follow current circuit module | |
| CN101813032A (en) | Electromagnetic valve driving circuit of diesel engine | |
| CN107605636B (en) | A kind of engine integrated high-energy ignition system | |
| CN209389936U (en) | A kind of Boost rapid pressure circuit of solenoid-driven | |
| US8154840B2 (en) | Fuel injector control | |
| CN108768169B (en) | Dual-coupling staggered boost converter for fuel cell and control method thereof | |
| CN105927404A (en) | Driving circuit for dual-fuel-injector high-speed electromagnetic valve of opposed two-stroke engine | |
| CN110206651B (en) | Peak/current-holding drive circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071219 Termination date: 20150107 |
|
| EXPY | Termination of patent right or utility model |