EP1340909A2 - Etage de sortie d'un circuit d'allumage - Google Patents

Etage de sortie d'un circuit d'allumage Download PDF

Info

Publication number: EP1340909A2
Authority: EP; European Patent Office
Prior art keywords: output stage; ignition; control unit; ignition output; coupling
Prior art date: 2002-02-28
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

Application number

EP03002052A

Other languages

German (de)

English (en)

Other versions

EP1340909B1 (fr

EP1340909A3 (fr

Inventor

Christoph Nohtse

Alfredo Hoffmann

Gian Piero Brandolini

Pasquale Forte

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Volkswagen AG

Original Assignee

Volkswagen AG

Priority date (The priority date 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 date listed.)

2002-02-28

Filing date

2003-01-29

Publication date

2003-09-03

2003-01-29 Application filed by Volkswagen AG filed Critical Volkswagen AG

2003-09-03 Publication of EP1340909A2 publication Critical patent/EP1340909A2/fr

2005-09-14 Publication of EP1340909A3 publication Critical patent/EP1340909A3/fr

2008-05-28 Application granted granted Critical

2008-05-28 Publication of EP1340909B1 publication Critical patent/EP1340909B1/fr

2023-01-29 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

the present invention relates to an ignition output stage, which is characterized by an engine control unit can be controlled reliably and safely.
FIG. 3 shows an example of a control of an ignition module with an ignition output stage represented by an engine control unit according to the prior art.
coupling means do not necessarily have to be galvanically decoupled between the Bring control unit and the ignition output stage, but for floating coupling between the control unit and the ignition output stage can also be, for example Differential amplifier can be used, which is connected to the control unit connected input resistance falling voltage and recorded in the corresponding Control voltage for the igniter of the ignition output stage.
FIG. 1 and FIG. 2 show those components which are the same as those in FIG. 3 Components shown correspond to the same reference numerals, so that on a repeated description of these components is omitted and instead the the above description can be referred to Figure 3.
the following is therefore predominant to the differences according to the invention between those shown in FIG. 1 and FIG. 2 Embodiments and the known ignition output stage shown in Figure 3.
the ignition module 3 with the ignition output stage is not directly via the wiring harness 2 connected to the engine control unit 1, but the coupling between the Ignition output stage and the wiring harness 2 or the engine control unit 1 takes place via Coupling means 4, which are designed such that they provide a potential-free coupling between the engine control unit 1 and the ignition output stage or the ignition module 3 enable.
this floating coupling takes place through the use an optocoupler, which is connected on the input side via the cable harness 2 to the Engine control unit 1 or the ground connection VGND1 (body ground) of the Engine control unit 1 is connected.
an input resistor used in combination with a differential amplifier.
the Input resistance is with the engine control unit 1 or the corresponding one Earth connection VGND1 (body earth) connected.
the differential amplifier is with its two input terminals to the two ends of this input resistor connected and thus detects the voltage drop across this input resistance, that is, the control voltage of the engine control unit 1 for the ignition output stage.
the differential amplifier is shown on the one hand with the Resistor 5 and the control circuit 6 with Standstillabsc Francisco functionality and on the other hand with the igniter 7 and Earth connection VGND2 (engine earth) of the ignition module 3 connected.
the design of the coupling means 4 for accomplishing a potential-free Coupling between the engine control unit 1 and the ignition module 3 or the one therein contained ignition output stage is of course not on the in Figure 1 and Figure 2 illustrated specific embodiments limited, but it can fundamentally all circuit means or components familiar to the person skilled in the art are used, which is a potential-free coupling between the ignition module 3 or the ignition output stage and enable the engine control unit 1, so that there are potential shifts on the ignition module 3 or a mass offset between the engine control unit 1 and the ignition module 3 is not adversely affect the reliability of the ignition system.

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)
Combustion Methods Of Internal-Combustion Engines (AREA)

EP03002052A 2002-02-28 2003-01-29 Etage de sortie d'un circuit d'allumage Expired - Lifetime EP1340909B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE10208697		2002-02-28
DE10208697A DE10208697A1 (de)	2002-02-28	2002-02-28	Zündendstufe

Publications (3)

Publication Number	Publication Date
EP1340909A2 true EP1340909A2 (fr)	2003-09-03
EP1340909A3 EP1340909A3 (fr)	2005-09-14
EP1340909B1 EP1340909B1 (fr)	2008-05-28

Family

ID=27675114

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP03002052A Expired - Lifetime EP1340909B1 (fr)	2002-02-28	2003-01-29	Etage de sortie d'un circuit d'allumage

Country Status (3)

Country	Link
EP (1)	EP1340909B1 (fr)
AT (1)	ATE397160T1 (fr)
DE (2)	DE10208697A1 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1257794A (fr) *	1968-06-28	1971-12-22
FR2378187A1 (fr) *	1977-01-21	1978-08-18	Renault	Circuit electronique de prelevement et de mise en forme d'un signal rupteur
DE3008066A1 (de) *	1980-03-03	1981-09-17	Robert Bosch Gmbh, 7000 Stuttgart	Schaltungsanordnung zur zuendung von brennkraftmaschinen
US4446841A (en) *	1982-01-20	1984-05-08	The Bendix Corporation	Photoelectric isolation circuit for an internal combustion engine ignition system
DE3900498A1 (de) *	1989-01-10	1990-07-19	Hermann Mueller	Elektronische zuendanlage ohne zuendverteiler fuer kfz
DE4009033A1 (de) *	1990-03-21	1991-09-26	Bosch Gmbh Robert	Vorrichtung zur unterdrueckung einzelner zuendvorgaenge in einer zuendanlage
JPH0454278A (ja) *	1990-06-22	1992-02-21	Mitsubishi Electric Corp	内燃機関用点火装置
SE505874C2 (sv) *	1996-01-23	1997-10-20	Mecel Ab	Mätkrets för detektering av jonisering i förbränningsrummet i en förbränningsmotor
US5910737A (en) *	1997-06-30	1999-06-08	Delco Electronics Corporation	Input buffer circuit with differential input thresholds operable with high common mode input voltages

2002
- 2002-02-28 DE DE10208697A patent/DE10208697A1/de not_active Ceased
2003
- 2003-01-29 AT AT03002052T patent/ATE397160T1/de not_active IP Right Cessation
- 2003-01-29 EP EP03002052A patent/EP1340909B1/fr not_active Expired - Lifetime
- 2003-01-29 DE DE50309903T patent/DE50309903D1/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
ATE397160T1 (de)	2008-06-15
DE10208697A1 (de)	2003-09-11
EP1340909B1 (fr)	2008-05-28
EP1340909A3 (fr)	2005-09-14
DE50309903D1 (de)	2008-07-10

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