EP4264037A1 - Zündeinrichtung für eine brennkraftmaschine - Google Patents
Zündeinrichtung für eine brennkraftmaschineInfo
- Publication number
- EP4264037A1 EP4264037A1 EP21838993.0A EP21838993A EP4264037A1 EP 4264037 A1 EP4264037 A1 EP 4264037A1 EP 21838993 A EP21838993 A EP 21838993A EP 4264037 A1 EP4264037 A1 EP 4264037A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ignition device
- diode
- coil
- parallel path
- path
- 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
- F02P3/0552—Opening or closing the primary coil circuit with semiconductor devices
-
- 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
- F02P11/00—Safety means for electric spark ignition, not otherwise provided for
Definitions
- the invention is based on an ignition device for an internal combustion engine according to the generic type of the main claim.
- An ignition device for an internal combustion engine is already known from DE102013202016 A1, with a primary circuit and a secondary circuit, the primary circuit having a primary coil and the secondary circuit having a secondary coil inductively coupled to the primary coil, a diode for suppressing inrush sparks and a high-voltage connection for connecting to a Spark plug included.
- the ignition device according to the invention with the characterizing features of the main claim has the advantage that undesired ignition is ruled out or at least avoided by a parallel path being formed electrically parallel to the diode of the secondary circuit.
- an ohmic load resistor can be arranged in the parallel path, or according to a second variant, an electrical switch can be arranged. Residual energy, in particular residual voltage, which remains in the secondary circuit after the ignition device has been discharged, can be extinguished by means of the parallel path, in particular in that the residual energy in the secondary circuit can be conducted past the diode, bypassing the diode.
- the ohmic load resistance of the parallel path according to the first exemplary embodiment has an electrical resistance which is greater than 1 MOhm and/or which is in particular in the range between 10 MOhm and 100 MOhm.
- an electrically conducting connection for the residual energy is provided in the parallel path at all times and, on the other hand, the switch-on spark suppression effect of the diode is only slightly weakened, so that it is ensured that no switch-on sparks are generated when the primary current is switched on in the primary circuit.
- the ohmic load resistance of the parallel path according to the first exemplary embodiment is a wired resistance, an S MD resistance or a conductor resistance. If the diode is implemented on a printed circuit board, for example as an SMD component, a load resistor designed as an S MD resistor would be advantageous. If the diode is a wired component, a wired load resistor or a load resistor designed as a ladder resistor would be advantageous.
- the conductor resistor comprises an electrically conductive material that is designed as a layer, coating, conductor track or sheathing.
- the entire parallel path is designed as a continuous conductor resistance.
- the conductor resistor is arranged and/or formed on the surface of the diode.
- the diode forms a carrier element for the load resistance and for forming the parallel path.
- the electrical switch of the parallel path is set up to be switched at a suitable point in time between a spark failure and renewed recharging of the primary circuit.
- the switch can be switched to the closed state at the appropriate time, as a result of which the parallel path for the residual energy is switched through, so that the residual energy is below Bypassing the diode can be conducted past the diode, which leads to an extinction of the residual energy.
- the switch of the parallel path can be a semiconductor switch, in particular a transistor, for example.
- connection ends of the parallel path are connected to the connections of the diode.
- the residual energy can be routed to an electrical ground via the parallel path for cancellation, in particular via the primary circuit or via a ground connection of the secondary circuit.
- the secondary coil has a first coil end facing the high-voltage connection and a second coil end facing away from the high-voltage connection, the secondary circuit having a high-voltage path connected to the first coil end of the secondary coil and a ground path connected to the second coil end of the secondary coil.
- the diode can be arranged in the ground path or in the high-voltage path.
- the ignition device according to the invention is formed on an ignition coil and is therefore arranged in a closed unit.
- the integration of the ignition device in the ignition coil offers advantages in terms of electrical insulation and installation space.
- Fig.l shows an ignition device according to the invention according to a first embodiment with a parallel path according to a first variant
- FIG. 2 shows an ignition device according to the invention according to the first exemplary embodiment according to FIG. 1 with a parallel path according to a second variant
- 3 shows an ignition device according to a second exemplary embodiment with a parallel path according to the first variant
- FIG. 4 shows an ignition device according to a third exemplary embodiment with a parallel path according to the first variant.
- FIG. 1 shows an ignition device according to a first exemplary embodiment with a parallel path according to a first variant.
- the ignition device 1 is used to generate an electrical high voltage to generate an ignition spark for operating an internal combustion engine, for example a hydrogen-powered internal combustion engine.
- the internal combustion engine is used, for example, to drive a vehicle.
- the ignition device 1 comprises a transformer 2 with a primary circuit 2.1 and a secondary circuit 2.2.
- the primary circuit 2.1 has a primary coil 3.
- the secondary circuit 2.2 includes a secondary coil 4 inductively coupled to the primary coil 3, a diode 5 for suppression of switch-on sparks and a high-voltage connection 6 for connection to a spark plug 7.
- the ignition device 1 according to the invention can be designed partially or completely on an ignition coil.
- a parallel path 10 is formed electrically parallel to the diode 5 of the secondary circuit 2.2, in which, according to the first variant, an ohmic load resistor 11 is arranged and by means of which residual energy, in particular a residual voltage, which remains in the secondary circuit 2.2 after the ignition device 1 has been discharged, is erasable.
- the residual energy is extinguished in that the residual energy in the secondary circuit 2.2 can be conducted past the diode 5 via the parallel path 10, bypassing the diode 5, and can be conducted to an electrical ground.
- the residual energy can reach the electrical ground via the primary circuit 2.1, for example via a low-voltage connection 12 of the primary circuit 2.1.
- the low-voltage connection 12 of the primary circuit is 2.1 provided, for example, for connection to a positive terminal of a battery of the vehicle.
- the parallel path 10 therefore provides an electrically conducting connection for the residual energy at all times, without losing or eliminating the switch-on spark suppressing effect of the diode 5 .
- the ohmic load resistance 11 of the parallel path 10 has, for example, an electrical resistance which is greater than 1 Mohm and which is, for example, in the range between 10 Mohm and 100 Mohm.
- the ohmic load resistance 11 of the parallel path 10 can, for example, be a wired resistor, an S MD resistor or a ladder resistor. If the load resistor 11 is designed as a conductor resistor, an electrically conductive material is provided for the conductor resistor, which material can be designed, for example, as a layer, coating, conductor track or sheathing.
- the sheathing can be an electrically conductive shrink tube, for example.
- the layer, coating or conductor track can, for example, be printed on, vapor-deposited or produced by sputtering.
- the load resistor 11 embodied as a conductor resistor can be arranged and/or formed, for example, on the surface of the diode 5 or on a diode body of the diode 5 .
- the parallel path 10 can be connected to the terminals 5.1 of the diode 5 with its terminal ends 10.1.
- the conductor resistance can, for example, extend along the surface of the diode 5 to the terminals 5.1 of the diode 5.
- the secondary coil 4 has a first coil end 4.1 facing the high-voltage connection 6 and a second coil end 4.2 facing away from the high-voltage connection 6, the secondary circuit 2.2 having a high-voltage path 13 connected to the first coil end 4.1 of the secondary coil 4 and a ground path 14 connected to the second coil end 4.2 of the secondary coil 4 having.
- the diode 5 can be arranged anywhere in the secondary circuit 2.2, that is to say in the ground path 14 or in the high-voltage path 13, and in each case has the parallel path 10 according to the invention.
- the diode 5 is arranged in the ground path 14, the ground path 14 being connected to the primary circuit 2.1 in accordance with the so-called economy circuit by a Terminal 5.1 of the diode 5 is electrically connected to the low-voltage terminal 12 of the primary circuit 2.1.
- the primary coil 3 of the primary circuit 2.1 has a first coil end 3.1 and a second coil end 3.2, the first coil end 3.1 being electrically connected to the low-voltage connection 12 and the second coil end 3.2 being electrically connected to an ignition output stage 15 provided for switching the primary current in the primary circuit 2.1 or is electrically connectable.
- the ignition output stage 15 is part of the ignition device 1 according to the invention, but this can expressly also be implemented outside the ignition device 1, for example in an engine control unit.
- the ignition output stage 15 has a connection 15.1 for connection to an electrical ground, for example a body or vehicle ground.
- FIG. 2 shows an ignition device according to the invention according to the first exemplary embodiment according to FIG. 1 with a parallel path according to a second variant.
- the ignition device according to FIG. 2 differs from the ignition device according to FIG.
- the switch 20 of the parallel path 10 is set up to be switched to the closed state at a suitable point in time between a spark failure of a previous ignition and a renewed recharging of the primary circuit 2.1.
- the parallel path 10 is electrically switched through at the appropriate point in time, so that residual energy can be extinguished at the appropriate point in time.
- the switch 20 can be a semiconductor switch, in particular a transistor, for example.
- FIG. 3 shows, in the form of an equivalent circuit diagram, an ignition device according to the invention according to a second exemplary embodiment with a parallel path according to the first variant with the ohmic load resistance.
- the diode 5 is arranged in the ground path 14 as in the first exemplary embodiment.
- the parallel path 10 is provided electrically in parallel with the diode 5 of the secondary circuit 2.2.
- the second exemplary embodiment differs from the first exemplary embodiment according to FIG. 1 only in that the ground path 14 is not connected to the primary circuit 2.1, but via a ground connection 17 to an electrical ground, for example a vehicle ground.
- the parallel path 10 according to the invention can, of course, also be formed with the switch 20 in accordance with the second variant.
- FIG. 4 shows, in the form of an equivalent circuit diagram, an ignition device according to the invention according to a third exemplary embodiment with a parallel path according to the first variant.
- the third exemplary embodiment differs from the second exemplary embodiment according to FIG.
- the parallel path 10 is provided electrically in parallel with the diode 5 of the secondary circuit 2.2.
- the ground path 14 is connected to an electrical ground, for example a vehicle ground, via the ground connection 17 .
- the parallel path 10 according to the invention can, of course, also be formed with the switch 20 in accordance with the second variant.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020215994.7A DE102020215994A1 (de) | 2020-12-16 | 2020-12-16 | Zündeinrichtung für eine Brennkraftmaschine |
| PCT/EP2021/084503 WO2022128603A1 (de) | 2020-12-16 | 2021-12-07 | Zündeinrichtung für eine brennkraftmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4264037A1 true EP4264037A1 (de) | 2023-10-25 |
| EP4264037B1 EP4264037B1 (de) | 2025-08-06 |
Family
ID=79270002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21838993.0A Active EP4264037B1 (de) | 2020-12-16 | 2021-12-07 | Zündeinrichtung für eine brennkraftmaschine |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US12123385B2 (de) |
| EP (1) | EP4264037B1 (de) |
| JP (1) | JP7688131B2 (de) |
| KR (1) | KR20230117441A (de) |
| CN (1) | CN116601383A (de) |
| DE (1) | DE102020215994A1 (de) |
| WO (1) | WO2022128603A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023179016A (ja) * | 2022-06-07 | 2023-12-19 | ダイヤゼブラ電機株式会社 | 点火装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19610862A1 (de) * | 1996-03-20 | 1997-09-25 | Bosch Gmbh Robert | Induktive Zündeinrichtung |
| JP4246228B2 (ja) * | 2006-10-20 | 2009-04-02 | 三菱電機株式会社 | 内燃機関点火装置 |
| JP5410214B2 (ja) | 2009-09-18 | 2014-02-05 | ダイヤモンド電機株式会社 | イオン電流検出装置 |
| US9488151B2 (en) | 2012-02-08 | 2016-11-08 | Denso Corporation | Ignition system |
| JP6805496B2 (ja) * | 2016-01-15 | 2020-12-23 | 富士電機株式会社 | 半導体装置 |
| JP6766443B2 (ja) * | 2016-05-20 | 2020-10-14 | 富士電機株式会社 | 半導体集積回路 |
-
2020
- 2020-12-16 DE DE102020215994.7A patent/DE102020215994A1/de active Pending
-
2021
- 2021-12-07 EP EP21838993.0A patent/EP4264037B1/de active Active
- 2021-12-07 JP JP2023537213A patent/JP7688131B2/ja active Active
- 2021-12-07 CN CN202180085266.9A patent/CN116601383A/zh active Pending
- 2021-12-07 WO PCT/EP2021/084503 patent/WO2022128603A1/de not_active Ceased
- 2021-12-07 KR KR1020237023858A patent/KR20230117441A/ko active Pending
- 2021-12-07 US US18/257,252 patent/US12123385B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP7688131B2 (ja) | 2025-06-03 |
| WO2022128603A1 (de) | 2022-06-23 |
| US12123385B2 (en) | 2024-10-22 |
| EP4264037B1 (de) | 2025-08-06 |
| CN116601383A (zh) | 2023-08-15 |
| DE102020215994A1 (de) | 2022-06-23 |
| JP2024500421A (ja) | 2024-01-09 |
| KR20230117441A (ko) | 2023-08-08 |
| US20240093664A1 (en) | 2024-03-21 |
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