CN110259620A - Over-pressure safety device, ignition system and vehicle for engine igniting system - Google Patents
Over-pressure safety device, ignition system and vehicle for engine igniting system Download PDFInfo
- Publication number
- CN110259620A CN110259620A CN201910568660.2A CN201910568660A CN110259620A CN 110259620 A CN110259620 A CN 110259620A CN 201910568660 A CN201910568660 A CN 201910568660A CN 110259620 A CN110259620 A CN 110259620A
- Authority
- CN
- China
- Prior art keywords
- signal wire
- control signal
- switch
- over
- diode
- 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
Classifications
-
- 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
- F02P3/055—Layout of circuits with protective means to prevent damage to the circuit, e.g. semiconductor devices or the ignition coil
Abstract
The present invention provides a kind of over-pressure safety devices, ignition system and vehicle for engine igniting system, are related to technical field of vehicle.For connecting ignition coil and harness female end, over-pressure safety device includes the female end adapter being connected with harness female end and is connected with ignition coil over-pressure safety device；Mutually independent coil ground line, control signal wire and coil power line are provided between female end adapter and coil adapter.Over-pressure safety device further includes diode and protection location.Diode one end is connected with control signal wire, other end ground connection.Diode arrangement is at the diode reverse breakdown when the voltage on control signal wire is greater than preset threshold.Protection location is connected with control signal wire, for disconnecting control signal wire in diode reverse breakdown or increasing the resistance of control signal wire so that the voltage on control signal wire is less than preset threshold.Above-mentioned over-pressure safety device can effectively reduce the development cycle, and cost is relatively low.
Description
Technical field
The present invention relates to technical field of vehicle, fill more particularly to a kind of overvoltage protection for engine igniting system
It sets, ignition system and vehicle.
Background technique
Ignition system is the armamentarium that electric spark can be generated between two electrode of spark plug, usually by battery, power generation
The composition such as machine, ignition distributor, ignition coil and spark plug.For insulated gate bipolar transistor (IGBT) is integrated in ECU
Ignition system will lead to the possibility of the breakdown ablation of IGBT due to spark plug aging, electrode gap increase etc..On the one hand,
IGBT ablation will cause ECU damage, at this point, then needing to change entire ECU；On the other hand, IGBT ablation can make the first of ignition coil
Grade circuit normal open electricity, causes ignition coil to overheat and ablation is cracked, and needs replacing ignition coil at this time.IGBT and ignition coil are burnt
Erosion will lead to engine fire, shake, accelerate inability, causes certain danger to the driving of automobile.
In the prior art, current foldback circuit can be generally integrated in ECU or overcurrent protection electricity is integrated in ignition coil
Road.Current foldback circuit is integrated in ECU, and ECU platform is needed to update, a large amount of calibration, verifying need of work re-start,
Long period, cost will also be significantly increased；Current foldback circuit is integrated in ignition coil, need to consider ECU compatibility, igniting
Coil needs to develop again, and time cycle and cost will also be significantly increased.
Summary of the invention
It is an object of the present invention to provide a kind of over-pressure safety device for engine igniting system, to solve
Current foldback circuit development cycle length, problem at high cost are integrated in ECU or ignition coil.
Another object of the present invention is to provide for a kind of ignition system, to avoid the breakdown ablation of IGBT.
Another object of the present invention is to provide for a kind of vehicle.
On the one hand, the present invention provides a kind of over-pressure safety device for engine igniting system, over-pressure safety devices
For connecting ignition coil and harness female end comprising:
Female end adapter is connected with harness female end,
Coil adapter, is connected with ignition coil, is provided between female end adapter and coil adapter mutually independent
Coil ground line, control signal wire and coil power line；
Diode, one end are connected with control signal wire, and the other end is grounded diode arrangement at when on control signal wire
Diode reverse breakdown when voltage is greater than preset threshold；
Protection location is connected with control signal wire, for disconnecting control signal wire or increase in diode reverse breakdown
The resistance of control signal wire is so that the voltage on control signal wire is less than preset threshold.
Optionally, protection location includes:
It is set to the control switch of control signal wire, is used for ON/OFF signal wire；Control switch is normally closed switch；
Control unit has collection terminal and control terminal, and collection terminal is connected between diode and ground, control terminal connection control
Switch controls control switch by control terminal and disconnects if collection terminal collects voltage signal and is greater than default clamp voltage, and
It is resetted after preset period of time.
Optionally, protection location includes:
It is set on control signal wire and first line parallel with one another and the second route, first line is equipped with for leading
On/off opens the first switch of first line, and the second route is equipped with concatenated second resistor and second switch, and first switch is
Normally closed switch, second switch are normal open switch；
Control unit has collection terminal and control terminal, and collection terminal is connected between diode and ground, control terminal connection first
Switch and second switch are opened if collection terminal collects voltage signal and is greater than default clamp voltage by control terminal control first
Shutdown is opened, second switch is connected, and resets after preset period of time.
Optionally, second resistor is used for the voltage stabilization of control signal wire in the range of being less than preset threshold.
Optionally, less than same ignition coil, this is powered down to the time interval between adjacent charging next time to preset period of time.
Optionally, female end adapter is removably attachable to harness female end；Coil adapter is removably attachable to light a fire
Coil.
Optionally, diode is grounded after being not connected with one end concatenation first resistor device of control signal wire.
Optionally, diode is Zener diode.
On the other hand, the present invention provides a kind of ignition system, above-mentioned over-pressure safety device is equipped in ignition system.
Another aspect, the present invention provides a kind of vehicle, vehicle is equipped with above-mentioned ignition system.
Over-pressure safety device for engine igniting system of the invention, for connecting ignition coil and harness female end,
Over-pressure safety device includes the female end adapter being connected with harness female end and is connected with ignition coil；Female end adapter and coil
Mutually independent coil ground line, control signal wire and coil power line are provided between adapter.Over-pressure safety device also wraps
Include diode and protection location.Diode one end is connected with control signal wire, other end ground connection.Diode arrangement is at when control letter
Diode reverse breakdown when voltage on number line is greater than preset threshold.Protection location is connected with control signal wire, in two poles
Control signal wire is disconnected when pipe reverse breakdown or increases the resistance of control signal wire so that the voltage on control signal wire is less than in advance
If threshold value.Above-mentioned over-pressure safety device is arranged between female end adapter and coil adapter, do not need to be integrated into ECU or
On ignition coil, the development cycle is reduced, and do not need additionally to replace ECU or ignition coil, cost is relatively low.
Further, female end adapter of the invention is removably attachable to harness female end；Coil adapter is removably
It is connected to ignition coil.Using this connection type, existing vehicle can directly be installed, without changing existing ignition lead
The structure and design of circle, ECU and harness, effectively reduce cost, and reduce and are led due to spark plug aging, electrode gap increase etc.
A possibility that IGBT of cause breakdown ablation.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Detailed description of the invention
Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing:
Fig. 1 is the schematic diagram of root harness female end and ignition coil connection relationship in the prior art；
Fig. 2 is the schematic diagram of over-pressure safety device according to an embodiment of the invention；
Fig. 3 is the schematic diagram of over-pressure safety device in accordance with another embodiment of the present invention.
Appended drawing reference in figure are as follows:
101- ignition coil, 102- harness female end,
1- female end adapter, 2- coil adapter, 3- coil ground line, 4- control signal wire, 5- coil power line, 6- bis-
Pole pipe, 8- control switch, 9- control unit, 10- first resistor device, 11- first line, the second route of 12-, 13- first switch,
14- second switch, 15- second resistor.
Specific embodiment
Fig. 1 is the schematic diagram of root harness female end 102 and 101 connection relationship of ignition coil in the prior art.With reference to
Fig. 1, in the prior art, ignition coil 101 with harness female end 102 are connected together by the connection type of buckle.Ignition lead
Circle 101 includes primary coil and secondary coil, and two coils are coupled each other by a shared magnetic loop.Primary coil
Formed by thicker enameled wire (about 0.5 millimeter) coiling, secondary coil by (less than the 0.1 millimeter) coiling of thinner enameled wire and
At the two turn ratio about 1:100.Primary coil one end connects low-tension supply anode, the other end and the midpoint ECU fireflood dynamic model on vehicle
Block IGBT connection.Secondary coil one end is grounded by harness, and the other end couples output high-voltage electricity with high pressure line output terminal to spark
Plug.ECU controls IGBT connection primary coil according to each duty requirements and power supply, primary current gradually rise, while establishing magnetize
, energy is stored；Time of ignition, IGBT cut off primary coil and power path, magnetic flux are caused to change rapidly.Induced voltage
Height is related with coil turn and magnetic flux change speed, and the magnetic field disappearance speed of primary coil is faster, and electric current disconnects moment
Electric current is bigger, and the turn ratio of two coils is bigger, then the voltage that secondary coil induces is higher.
Fig. 2 is the schematic diagram of over-pressure safety device according to an embodiment of the invention.Fig. 3 is according to the present invention
The schematic diagram of the over-pressure safety device of another embodiment.The embodiment of the present invention is described referring to Fig. 1 to Fig. 3
Over-pressure safety device.
With reference to Fig. 2 and 3, the over-pressure safety device for engine igniting system of the invention, for connecting ignition coil
101 and harness female end 102, over-pressure safety device include the female end adapter 1 and and ignition coil being connected with harness female end 102
101 be connected；It is provided with mutually independent coil between female end adapter 1 and coil adapter 2 and is grounded 3, control signal wire 4
With coil power line 5.Applicants have found that the secondary voltage of ignition coil 101 reaches as high as 30 when spark plug sparking moment
~40kV, while the primary mutual voltage of ignition coil 101 is up to hundreds of volts, since ignition coil 101 and ECU passes through IGBT phase
Even, primary mutual voltage can be applied to the IGBT of ignition coil 101 by control signal wire 4.In starting, idling, anxious acceleration etc.
Under operating condition, it is more easier the case where clamp voltage that primary mutual voltage is greater than IGBT occur, at this point, it is breakdown to will lead to IGBT
Ablation, after spark plug aging, electrode gap increase, the probability that such situation occurs is bigger.Therefore, it is easy to appear ECU damage
The phenomenon that with 101 ablation of ignition coil.To avoid the occurrence of the above problem, over-pressure safety device increases diode 6 and protection is single
Member.6 one end of diode is connected with control signal wire 4, and other end ground connection, generally, the ground terminal of diode is connected to engine
Cylinder body or cylinder cap are to be grounded.Diode 6 is configured to the diode 6 when the voltage on control signal wire 4 is greater than preset threshold
Reverse breakdown.Protection location is connected with control signal wire 4, for disconnecting control signal wire 4 in 6 reverse breakdown of diode or increasing
Add the resistance of control signal wire 4 so that the voltage on control signal wire 4 is less than preset threshold.Here preset threshold is not done in detail
It limits, depending on the ignition coil 101 of different model.Above-mentioned over-pressure safety device setting turns in female end adapter 1 and coil
It between connector 2, does not need to be integrated on ECU or ignition coil 101, reduces the development cycle, and do not need additionally to replace ECU
Or ignition coil 101, cost is relatively low.
Further, female end adapter 1 of the invention is removably attachable to harness female end 102；Coil adapter 2 is removable
It is connected to ignition coil 101 with unloading.Using this connection type, existing vehicle can directly be installed, it is existing without change
There are the structure and design of ignition coil 101, ECU and harness, effectively reduce cost, reduces due to spark plug aging, electrode gap
A possibility that breakdown ablation of IGBT caused by reasons such as increasing.
With reference to Fig. 2, in one embodiment, protection location includes:
It is set to the control switch 8 of control signal wire 4, is used for ON/OFF signal wire.Control switch 8 is normally closed switch.
Control unit 9 has collection terminal and control terminal, and collection terminal is connected between diode and ground, and control terminal connects control switch.If
Collection terminal collects voltage signal and is greater than default clamp voltage, then controls control switch by control terminal and disconnect, and when default
It is resetted after section.Diode 6 is Zener diode 6 in the present embodiment.Further, in order to balance 6 place circuit of diode
Electric current, diode 6 are grounded after being not connected with one end concatenation first resistor device 10 of control signal wire 4.Further, in order to guarantee a little
Fiery system normal use, preset period of time is less than same ignition coil, and this is powered down to the time interval between adjacent charging next time.
Specifically, Zener diode 6, first resistor device 10 to ground are concatenated on control signal wire 4.When due to primary mutual inductance
When voltage caused by voltage on control signal wire 4 is higher than setting voltage value, the conducting of 6 reverse breakdown of diode；It controls at this time
Unit 9 judges whether voltage is greater than the clamp voltage of IGBT, by the signal in acquisition 6 place circuit of diode if more than then breaking
Control switch 8 is opened, control switch 8 is closed after current path, to guarantee normal ignition next time.
With reference to Fig. 3, in another embodiment, protection location include be set to it is on control signal wire 4 and parallel with one another
First line 11 and the second route 12, first line 11 are equipped with the first switch 13 for ON/OFF first line 11, the
Two routes 12 are equipped with concatenated second resistor 15 and second switch 14, and first switch 13 is normally closed switch, second switch 14
For normal open switch.Control unit 9 has collection terminal and control terminal.Collection terminal is connected between diode and ground, control terminal connection
First switch 13 and second switch 14.If collection terminal, which collects voltage signal, is greater than default clamp voltage, pass through control terminal control
First switch processed disconnects, second switch is connected, and resets after preset period of time.Second resistor 15 is used for control signal wire 4
Voltage stabilization be less than preset threshold in the range of.
Diode 6 is Zener diode 6 in the present embodiment.Further, in order to balance the electricity in 6 place circuit of diode
Stream, diode 6 are grounded after being not connected with one end concatenation first resistor device 10 of control signal wire 4.Further, in order to guarantee to light a fire
System normal use, preset period of time is less than same ignition coil, and this is powered down to the time interval between adjacent charging next time.
Specifically, Zener diode 6, second resistor 15 to ground are concatenated on control signal wire 4.When due to primary mutual inductance
When voltage caused by voltage on control signal wire 4 is higher than setting voltage value, the conducting of 6 reverse breakdown of diode；It controls at this time
Unit 9 judges whether voltage is greater than the clamp voltage of IGBT, by the signal in acquisition 6 place circuit of diode if more than then breaking
First switch 13, closure second switch 14 are opened, control switch 8 is closed after current path, to guarantee normal ignition next time.
The overvoltage protection dress being equipped with the present invention also provides a kind of ignition system, in ignition system in any of the above-described embodiment
It sets, about over-pressure safety device, and will not be described here in detail.With reference to Fig. 2, the working principle of ignition system is introduced.
When IGBT conducting, the primary circuit conducting of ignition coil 101, the anode of primary current battery is through coil power
After line 5,101 control signal wire 4 to IGBT of ignition coil, then it is grounded.After IGBT is disconnected, ignition coil 101 can generate secondary
Step voltage and primary mutual voltage, secondary voltage generate spark for keeping the gap between spark plug the two poles of the earth breakdown.And it is primary
Mutual voltage is possible to that the breakdown ablation of IGBT can be will lead to because the clamp voltage of IGBT is greater than.At this point, in control signal
It is breakdown that IGBT can be effectively prevented in over-pressure safety device on line 4.
The present invention also provides a kind of vehicle, vehicle is equipped with above-mentioned ignition system.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows
Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all such other variations or modifications.
Claims (10)
1. a kind of over-pressure safety device for engine igniting system, which is characterized in that the over-pressure safety device is for connecting
Connect ignition coil and harness female end comprising:
Female end adapter is connected with the harness female end,
Coil adapter is connected with the ignition coil, is provided with phase between the female end adapter and the coil adapter
Mutually independent coil ground line, control signal wire and coil power line；
Diode, one end are connected with the control signal wire, and the other end is grounded the diode arrangement at when the control is believed
Voltage on number line is greater than diode reverse breakdown when preset threshold；
Protection location is connected with the control signal wire, for disconnecting the control signal in the diode reverse breakdown
Line increases the resistance of the control signal wire so that the voltage on the control signal wire is less than the preset threshold.
2. over-pressure safety device according to claim 1, which is characterized in that
The protection location includes:
It is set to the control switch of the control signal wire, for signal wire described in ON/OFF；The control switch is normally closed
Switch；
Control unit has collection terminal and control terminal, and the collection terminal is connected between diode and ground, the control terminal connection
The control switch is controlled if the collection terminal collects voltage signal and is greater than default clamp voltage by the control terminal
The control switch disconnects, and resets after preset period of time.
3. over-pressure safety device according to claim 1, which is characterized in that
The protection location includes:
It is set on the control signal wire and first line parallel with one another and the second route, the first line is equipped with use
The first switch of the first line described in ON/OFF, second route are equipped with concatenated second resistor and second and open
It closes, the first switch is normally closed switch, and the second switch is normal open switch；
Control unit has collection terminal and control terminal, and the collection terminal is connected between diode and ground, the control terminal connection
The first switch and the second switch pass through if the collection terminal collects voltage signal and is greater than default clamp voltage
The control terminal controls the first switch disconnection, second switch conducting, and resets after preset period of time.
4. over-pressure safety device according to claim 3, which is characterized in that
The second resistor is used for the voltage stabilization of the control signal wire in the range of being less than the preset threshold.
5. over-pressure safety device according to claim 2 or 3, which is characterized in that
The preset period of time is less than same ignition coil, and this is powered down to the time interval between adjacent charging next time.
6. over-pressure safety device according to claim 1, which is characterized in that
The female end adapter is removably attachable to the harness female end；The coil adapter is removably attachable to described
Ignition coil.
7. over-pressure safety device according to claim 1, which is characterized in that
The diode is grounded after being not connected with one end concatenation first resistor device of the control signal wire.
8. over-pressure safety device according to claim 1, which is characterized in that
The diode is Zener diode.
9. a kind of ignition system, which is characterized in that be equipped with such as mistake of any of claims 1-8 in the ignition system
Press protective device.
10. a kind of vehicle, which is characterized in that the vehicle is equipped with ignition system as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910568660.2A CN110259620B (en) | 2019-06-27 | 2019-06-27 | Overvoltage protection device for engine ignition system, ignition system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910568660.2A CN110259620B (en) | 2019-06-27 | 2019-06-27 | Overvoltage protection device for engine ignition system, ignition system and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110259620A true CN110259620A (en) | 2019-09-20 |
| CN110259620B CN110259620B (en) | 2021-05-25 |
Family
ID=67922474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910568660.2A Active CN110259620B (en) | 2019-06-27 | 2019-06-27 | Overvoltage protection device for engine ignition system, ignition system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110259620B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3347218A (en) * | 1965-10-24 | 1967-10-17 | Mallory & Co Inc P R | Transistorized ignition system |
| CN1195390A (en) * | 1995-09-12 | 1998-10-07 | 罗伯特·博施有限公司 | Final ignition stage |
| CN101378187A (en) * | 2007-08-29 | 2009-03-04 | 鸿富锦精密工业（深圳）有限公司 | Power supply protection circuit |
| CN201671747U (en) * | 2010-05-13 | 2010-12-15 | 安徽祈艾特电子科技有限公司 | Single double-head type distributorless automobile electronic ignition module |
| EP2654207A2 (en) * | 2012-04-19 | 2013-10-23 | Fuji Electric Co., Ltd. | Semiconductor device including current control function and self-interrupt function |
| CN103457234A (en) * | 2012-05-30 | 2013-12-18 | 海洋王（东莞）照明科技有限公司 | Overvoltage protective device |
| CN103972859A (en) * | 2013-01-31 | 2014-08-06 | 海洋王（东莞）照明科技有限公司 | Overvoltage protecting circuit |
| CN104682342A (en) * | 2013-12-02 | 2015-06-03 | 成都市思码特科技有限公司 | Over-voltage protection circuit of testing host computer |
-
2019
- 2019-06-27 CN CN201910568660.2A patent/CN110259620B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3347218A (en) * | 1965-10-24 | 1967-10-17 | Mallory & Co Inc P R | Transistorized ignition system |
| CN1195390A (en) * | 1995-09-12 | 1998-10-07 | 罗伯特·博施有限公司 | Final ignition stage |
| CN101378187A (en) * | 2007-08-29 | 2009-03-04 | 鸿富锦精密工业（深圳）有限公司 | Power supply protection circuit |
| CN201671747U (en) * | 2010-05-13 | 2010-12-15 | 安徽祈艾特电子科技有限公司 | Single double-head type distributorless automobile electronic ignition module |
| EP2654207A2 (en) * | 2012-04-19 | 2013-10-23 | Fuji Electric Co., Ltd. | Semiconductor device including current control function and self-interrupt function |
| CN103457234A (en) * | 2012-05-30 | 2013-12-18 | 海洋王（东莞）照明科技有限公司 | Overvoltage protective device |
| CN103972859A (en) * | 2013-01-31 | 2014-08-06 | 海洋王（东莞）照明科技有限公司 | Overvoltage protecting circuit |
| CN104682342A (en) * | 2013-12-02 | 2015-06-03 | 成都市思码特科技有限公司 | Over-voltage protection circuit of testing host computer |
Non-Patent Citations (1)
| Title |
|---|
| 王晓红等: "嘉陵JH200-8点火线圈与ECU的优化匹配（1）", 《摩托车技术》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110259620B (en) | 2021-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105840390B (en) | Ignition control circuit with current slope detection function | |
| US9399979B2 (en) | Ignition system | |
| US6283104B1 (en) | Ignition system for internal combustion engine | |
| US9784230B2 (en) | Ignition system for an internal combustion engine | |
| CN103941720A (en) | Fault diagnosis circuit and method of internal-drive electrically-controlled ignition system | |
| CN109591646A (en) | Vehicle-mounted end parallel connection protection circuit suitable for LCL/LCC topology wireless charging system | |
| EP3374627B1 (en) | Method and apparatus to control an ignition system | |
| CN110259620A (en) | Over-pressure safety device, ignition system and vehicle for engine igniting system | |
| CN1195390A (en) | Final ignition stage | |
| CN204270844U (en) | High security oil formula transformer with fusible core protective device | |
| CN201887437U (en) | Two-point grounding protective device for iron core of resistance type transformer | |
| US20070165341A1 (en) | Overvoltage-protective automotive power generation control circuit | |
| EP0811763A2 (en) | Ignition system with generator voltage distribution control | |
| CN207161244U (en) | The ignition control device that anti-ignition coil burns | |
| US20090160450A1 (en) | Method and device for providing diagnostics for an internal combustion engine ignition coil | |
| JP3528296B2 (en) | Ignition device for internal combustion engine | |
| CN105762778A (en) | Surge protection circuit and mobile terminal | |
| CN216625290U (en) | Passive electronic detonation circuit for exciting fuse | |
| CN102486151B (en) | Dual-energy source independent ignition | |
| CN205069512U (en) | Automobile -used dynamic relay that rises who takes duplicate protection function | |
| EP0495434A1 (en) | Electronic ignition control system for a vehicle internal combustion engine | |
| CN206234036U (en) | A kind of vehicle startup system bundle assembly | |
| US20230358200A1 (en) | Method and apparatus to control an ignition system | |
| CN114336526A (en) | Passive electronic detonation circuit for exciting fuse | |
| JP4246533B2 (en) | Earthing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |