EP2547897A1 - Ignition method and ignition system therefor - Google Patents
Ignition method and ignition system thereforInfo
- Publication number
- EP2547897A1 EP2547897A1 EP11715394A EP11715394A EP2547897A1 EP 2547897 A1 EP2547897 A1 EP 2547897A1 EP 11715394 A EP11715394 A EP 11715394A EP 11715394 A EP11715394 A EP 11715394A EP 2547897 A1 EP2547897 A1 EP 2547897A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- current
- ignition
- primary
- circuit
- spark plug
- 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
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004804 winding Methods 0.000 claims abstract description 21
- 238000002485 combustion reaction Methods 0.000 claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 claims description 3
- 239000013543 active substance Substances 0.000 claims 1
- 230000004913 activation Effects 0.000 abstract 1
- 230000033228 biological regulation Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
- F02P17/12—Testing characteristics of the spark, ignition voltage or current
-
- 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
- F02P15/00—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
- F02P15/10—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits having continuous electric sparks
-
- 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
- F02P3/051—Opening or closing the primary coil circuit with semiconductor devices
- F02P3/053—Opening or closing the primary coil circuit with semiconductor devices using digital techniques
Definitions
- the invention relates to an ignition method for internal combustion engines with an ignition coil with primary circuit and secondary circuit and a in
- Pulse signal is controlled by pulse width modulation in the primary circuit. Furthermore, the invention relates to an ignition system for internal combustion engines with a control unit for specifying a drive signal, a burning time and an ignition current, an electronic switch for generating a
- Pulse signals an ignition coil with primary and secondary windings, wherein the primary winding via the electronic switch to a voltage source and the secondary winding supplies a spark plug.
- an ignition system for igniting the fuel-air mixture in the combustion chamber by means of a spark is required.
- an electronic ignition system is used with an ignition coil as energy storage.
- a situation-appropriate adjustment of the ignition energy required for each ignition process is of crucial importance.
- EP 1 103 720 B1 discloses a method and device for controlling the current of an ignition system for an internal combustion engine, in which electrical energy is generated in a magnetic field that has been established by a primary current. stored and interrupted by interrupting the primary current, the magnetic field and generates a high voltage by induction, which is used for ignition, wherein a control signal is a target value for the
- Flyback converter operates and receives the signal of a secondary-side ion current measurement as actual size.
- the pulse train ignition is known, which is similar to the pulse width modulated ignition control, but a conscious
- the third electronic ignition system is a
- AC ignition known in which the primary circuit of the ignition coil is supplied with an AC voltage.
- a formed from ignition coil and capacitor resonant circuit is driven, so at the output there is a high voltage with alternating polarity and accordingly matched spark plugs must be used.
- the object of the invention is to provide an ignition system or an ignition method, with which a safe triggering of a spark with control of the ignition process over the entire firing period is provided, with excessive use of the ignition coil and spark plug is to be avoided.
- the basic idea is that the ignition coil as
- the state of the secondary circuit can be reliably detected.
- the ignition current is readjusted immediately via the control loop in order to avoid spark arrest.
- This ignition current control thus automatically reacts to sources of error on the secondary current side.
- Each cylinder or each spark plug thus the individually optimal ignition current is supplied.
- the ignition coil acts in Operation as a forward converter.
- the adjustment of the ignition current to the desired current is carried out by pulse width modulation or frequency modulation or pulse width and frequency modulation. In a frequency modulation special characteristics of the respective ignition coil and other parameters of the control behavior can be considered.
- Freewheeling current can be added to a total current and the total current is compared with the predetermined Sollzündstrom can be used by detecting the freewheeling current of the control loop for multiple Zündspul- / spark plug systems for multi-cylinder internal combustion engines.
- a primary current measurement is carried out before the distribution of the primary current to the respective ignition coils assigned to the cylinders or spark plugs, ie before the electronic switches which are arranged parallel to one another.
- the maximum energy can be chosen so that the usual wear, especially on the spark plug within a tolerance range, by the maximum energy is given, are covered. If, however, significant errors in
- the control unit controls the secondary current correction means and also selects the slope of the ramp. The steepness of the ramp can vary depending on
- Ignition coil type can be specified differently. Depending on the respectively connected ignition coil type, the correct ramp can then be selected via the configuration of the control unit. In the secondary flow means, the ramp is generated so that it runs during the burning time of the spark plug and prevents the rise of the ramp signal, the otherwise resulting secondary current drop.
- the charging process of the ignition coil is carried out with a fixed charge current, after which the ignition current control takes place only after the flashover.
- the pulse signal has a fixed or regulated switching frequency of 50 kHz and higher, in particular 50 kHz to 100 kHz, a very straightforward ignition current profile can be achieved despite the regulation, which avoids current peaks.
- the known with pulse width modulated ignition control Ripplestrom is avoided.
- Fig. 2 in two graphs the course of control and current signals in the ignition system according to the invention.
- Fig. 3 is a switching principle of a simplified embodiment of the invention.
- FIG. 4 shows a switching principle according to FIG. 1 with secondary current correction.
- a basic circuit of the ignition system according to the invention is shown.
- the circuit has a control unit 1, which is for example a CPU, in which the parameters for the operation of the ignition system and its software is stored.
- these are the specification of a drive signal, the specification of a burning time and the specification of the ignition current.
- the initial ignition current with charging duration is predetermined via the control unit 1.
- the circuit has an electronic switch 2 in a primary circuit P powered by a voltage source 4.
- the primary circuit P leads via a primary winding 31 of the ignition coil 3
- Primary circuit P a parallel to the primary winding 31 of the ignition coil 3 connected freewheeling diode 33 is arranged.
- a first current measuring means 61 is provided for determining the instantaneously flowing primary current.
- a second current measuring means 62 for measuring the first current measuring means 61 in the parallel to the primary winding 31 line with the Freewheeling diode 33.
- the ignition coil 3 has, in addition to the primary winding 31, a secondary winding 32 (high-voltage part), which together with a spark plug 5 a
- the two measuring signals of the first current measuring means 61 and the second current measuring means 62 are applied to an adder 7 in which the total current is determined from the two signals.
- the total current is at one
- Comparator 8 is set, which compares the total current with the predetermined from the control unit 1 ignition. According to the comparison in
- Amperage in the primary circuit P by pulse width modulation and / or
- the signal of the total current from the adder 7 is also applied to an integrator 9, which integrates the measured total current via an ignition process and thus determines the ignition energy. If the ignition energy exceeds a maximum energy likewise predetermined in the control unit 1, the electronic switch 2 is opened, that is, the ignition is interrupted. Thus, an overuse of the components, in particular the ignition coil 3 and the spark plug 5 is avoided.
- Fig. 2 two graphs are shown.
- the upper graph shows the control signals predetermined in the control unit 1, in particular the burning time ⁇ , the ignition current I Zv and the high-voltage supply E H over the time t.
- the lower graph is the corresponding to the control of the control unit 1 at the
- Ignition coil 3 applied ignition current l Zm over the time t indicated.
- the control begins and the ignition current is adjusted via the built-up of adder 7, comparator 8, control unit 1 and electronic switch 2 control loop to the predetermined 100 mA. Due to the high switching frequency of the pulse signal of, for example, 50 kHz to 100 kHz, a continuous and very straightforward ignition current profile is achieved until the end of the burning time ⁇ (falling edge).
- the exemplary embodiment according to FIG. 1 is advantageous in particular for internal combustion engines with a plurality of spark plugs (several cylinders), since only one control circuit is required if the ignition coils assigned to each spark plug are connected in parallel to each other via respectively associated electronic switches 2 after the first current measuring means 61. So it is imperative for this circuit that the first current measuring means is arranged in front of the branch to the electronic switches 2. Accordingly, the respective ignition coil associated freewheeling diodes 33 are summarized in a node at its base on which then with a second current measuring means 62 of the associated freewheeling current is measured sequentially.
- Fig. 3 is a simplified embodiment as a switching principle
- FIG. 4 shows a basic circuit of the ignition system according to the invention shown in FIG. 1, which additionally contains a secondary current correction. Since the circuit is otherwise constructed the same way as in Fig. 1, reference is made to the description of figures for Fig. 1 in this respect. The reference numerals are chosen accordingly. In Fig. 4, however, is an additional
- Secondary current correction means 81 is provided, which acts on the controller 8 so that a generated in the secondary current correction means 81
- ramp-shaped rising signal is superimposed on the control loop.
- the ramp-shaped signal generated in the secondary current correction means 81 is triggered by the control unit 1, wherein the control unit 1 additionally transmits the slope of the ramp by means of secondary correction factor. This takes into account the
- Secondary correction factor ie the slope of the ramp, the ignition coil type provided in the circuit.
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 |
---|---|---|---|
DE102010015998A DE102010015998A1 (en) | 2010-03-17 | 2010-03-17 | Ignition and ignition system for it |
PCT/DE2011/075043 WO2011113431A1 (en) | 2010-03-17 | 2011-03-16 | Ignition method and ignition system therefor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2547897A1 true EP2547897A1 (en) | 2013-01-23 |
EP2547897B1 EP2547897B1 (en) | 2016-08-31 |
Family
ID=44276103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11715394.0A Active EP2547897B1 (en) | 2010-03-17 | 2011-03-16 | Ignition method and ignition system therefor |
Country Status (6)
Country | Link |
---|---|
US (1) | US8893692B2 (en) |
EP (1) | EP2547897B1 (en) |
DE (1) | DE102010015998A1 (en) |
ES (1) | ES2599409T3 (en) |
PL (1) | PL2547897T3 (en) |
WO (1) | WO2011113431A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9677498B2 (en) | 2013-05-16 | 2017-06-13 | Ford Global Technologies, Llc | Variable displacement engine control system and method |
DE102013010685A1 (en) | 2013-06-26 | 2014-12-31 | Mtu Friedrichshafen Gmbh | Method for controlling the ignition energy |
US9617967B2 (en) | 2013-06-28 | 2017-04-11 | Ford Global Technologies, Llc | Method and system for laser ignition control |
US20150340846A1 (en) * | 2014-05-21 | 2015-11-26 | Caterpillar Inc. | Detection system for determining spark voltage |
JP6470066B2 (en) * | 2015-02-23 | 2019-02-13 | サンケン電気株式会社 | Ignition device |
JP6342026B1 (en) * | 2017-02-14 | 2018-06-13 | 三菱電機株式会社 | Combustion state detection device for internal combustion engine |
JP7087676B2 (en) * | 2018-05-25 | 2022-06-21 | 株式会社デンソー | Internal combustion engine ignition control device |
US11801753B2 (en) * | 2021-03-18 | 2023-10-31 | Samsung Sdi Co., Ltd. | Battery system and vehicle including the battery system |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1594276A (en) * | 1977-01-19 | 1981-07-30 | Bosch Gmbh Robert | Ignition system for internal combustion engines |
DE2747819A1 (en) * | 1977-10-25 | 1979-04-26 | Siemens Aag | PROCEDURE AND CIRCUIT ARRANGEMENT FOR CONTROLLING THE PRIMARY CURRENT IN COIL END SYSTEMS OF MOTOR VEHICLES |
JPS57204629A (en) * | 1981-06-12 | 1982-12-15 | Nec Corp | Control circuit of pulse width |
US4658788A (en) * | 1985-01-21 | 1987-04-21 | Nippondenso Co., Ltd. | Ignition system for internal combustion engines |
JPH02245478A (en) | 1989-03-20 | 1990-10-01 | Mitsubishi Electric Corp | Ignition device for internal combustion engine |
US4998526A (en) * | 1990-05-14 | 1991-03-12 | General Motors Corporation | Alternating current ignition system |
DE4038440C2 (en) | 1990-12-01 | 1994-09-22 | Telefunken Microelectron | Electronic ignition system for internal combustion engines |
US5060623A (en) * | 1990-12-20 | 1991-10-29 | Caterpillar Inc. | Spark duration control for a capacitor discharge ignition system |
IT1260135B (en) * | 1992-02-13 | 1996-03-28 | Weber Srl | IGNITION CONTROL DEVICE FOR AN ELECTRONIC IGNITION SYSTEM OF AN ENDOTHERMAL ENGINE |
DE19608526C2 (en) * | 1996-03-06 | 2003-05-15 | Bremi Auto Elek K Bremicker Gm | Process for regulating the minimum ignition energy in an internal combustion engine |
US5723916A (en) | 1996-05-17 | 1998-03-03 | Delco Electronics Corporation | Electrical load driving device including load current limiting circuitry |
DE50014331D1 (en) | 1999-11-29 | 2007-06-28 | Volkswagen Ag | Method and device for controlling the current of an ignition system for an internal combustion engine |
DE10031875A1 (en) | 2000-06-30 | 2002-01-10 | Bosch Gmbh Robert | Ignition method and corresponding ignition device |
JP4462747B2 (en) * | 2000-10-31 | 2010-05-12 | 日本特殊陶業株式会社 | Ignition device for internal combustion engine |
DE10061563B4 (en) * | 2000-12-06 | 2005-12-08 | RUBITEC Gesellschaft für Innovation und Technologie der Ruhr-Universität Bochum mbH | Method and apparatus for switching on and off of power semiconductors, in particular for a variable-speed operation of an asynchronous machine, operating an ignition circuit for gasoline engines, and switching power supply |
DE10152171B4 (en) * | 2001-10-23 | 2004-05-06 | Robert Bosch Gmbh | Device for igniting an internal combustion engine |
DE10155972A1 (en) | 2001-11-14 | 2003-05-22 | Bosch Gmbh Robert | Electrical spark ignition system for internal combustion engine incorporates function control circuit and ignition transistor transmitting pulse signals to step-up transistor |
WO2007038945A1 (en) * | 2005-09-21 | 2007-04-12 | Freescale Semiconductor, Inc. | Controller and method for controlling an ignition coil |
US7401603B1 (en) | 2007-02-02 | 2008-07-22 | Altronic, Inc. | High tension capacitive discharge ignition with reinforcing triggering pulses |
DE102007044859A1 (en) | 2007-09-20 | 2009-04-09 | Continental Automotive Gmbh | Method and device for operating an ignition coil and method for producing such an apparatus |
-
2010
- 2010-03-17 DE DE102010015998A patent/DE102010015998A1/en not_active Withdrawn
-
2011
- 2011-03-16 US US13/579,650 patent/US8893692B2/en active Active
- 2011-03-16 WO PCT/DE2011/075043 patent/WO2011113431A1/en active Application Filing
- 2011-03-16 PL PL11715394T patent/PL2547897T3/en unknown
- 2011-03-16 ES ES11715394.0T patent/ES2599409T3/en active Active
- 2011-03-16 EP EP11715394.0A patent/EP2547897B1/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2011113431A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2547897B1 (en) | 2016-08-31 |
US20120325190A1 (en) | 2012-12-27 |
DE102010015998A1 (en) | 2011-09-22 |
WO2011113431A1 (en) | 2011-09-22 |
PL2547897T3 (en) | 2017-02-28 |
ES2599409T3 (en) | 2017-02-01 |
US8893692B2 (en) | 2014-11-25 |
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