EP1560232B1 - Dispositif d'essai de bobine d'allumage - Google Patents

Dispositif d'essai de bobine d'allumage Download PDF

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Publication number
EP1560232B1
EP1560232B1 EP05100499A EP05100499A EP1560232B1 EP 1560232 B1 EP1560232 B1 EP 1560232B1 EP 05100499 A EP05100499 A EP 05100499A EP 05100499 A EP05100499 A EP 05100499A EP 1560232 B1 EP1560232 B1 EP 1560232B1
Authority
EP
European Patent Office
Prior art keywords
ignition coil
spark plug
tester
ignition
dome
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.)
Not-in-force
Application number
EP05100499A
Other languages
German (de)
English (en)
Other versions
EP1560232A2 (fr
EP1560232A3 (fr
Inventor
Werner Bumen
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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.)
Filing date
Publication date
Priority claimed from DE102004017307A external-priority patent/DE102004017307A1/de
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1560232A2 publication Critical patent/EP1560232A2/fr
Publication of EP1560232A3 publication Critical patent/EP1560232A3/fr
Application granted granted Critical
Publication of EP1560232B1 publication Critical patent/EP1560232B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/12—Ignition, e.g. for IC engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q23/00—Testing of ignition installations
    • F23Q23/08—Testing of components
    • F23Q23/10—Testing of components electrically

Definitions

  • the invention relates to a Zünd spuleester for functional testing of pencil ignition coils, which is connectable to a diagnostic tester, the Stabzündspule having a primary winding and a secondary winding for generating the ignition voltage and a field guide plate, a connector and a secondary output.
  • a measuring clamp In order to test the function of EFS ignition coils, the high voltage delivered by an ignition coil via a cable to the spark plug, a measuring clamp is already known, which can be clamped on the outer shell of the line carrying the high voltage. Two conductor surfaces of the measuring pliers surround the high voltage cable. The ignition coil can thus be tested in the installed state.
  • the ignition coil tester has a compensation sleeve for contacting the secondary output of the pencil ignition coil with a spark plug and a sensor for capacitive decoupling of the ignition signal of the pencil ignition coil.
  • the sensor for decoupling the ignition signal is housed in the housing of the pencil ignition coil.
  • the testing of pencil ignition coils is therefore carried out today in the disassembled state.
  • the loose measuring assemblies used with numerous necessary aids do not allow the measurement to be carried out directly on the internal combustion engine.
  • the test conditions of a developed pencil ignition coil differ from those of a built-in. This means that the test results do not completely match the actual values in the operating state or that not all tests can be carried out under real conditions.
  • the object of the invention is to provide an ignition coil tester in connection with a diagnostic tester for the component testing of a bar ignition coil developed from an internal combustion engine.
  • the object of the invention is achieved according to the characterizing part of claim 1, characterized in that the electrical connection between the Stabzündspule and the selected spark gap by a compensating sleeve as a connecting piece from the secondary output of the pencil ignition coil to the gas spark gap or the spark plug, and that for the capacitive Zündsignalauskopplung for the ignition voltage diagnosis on the compensating sleeve a capacitive sensor is mounted.
  • the compensation sleeve can be optimally adapted in its construction to the required measuring task of determining the exact ignition voltage by selecting suitable dimensions and materials.
  • an ignition coil tester is created whose dimensions and shape substantially correspond to those of a spark plug dome in an internal combustion engine and / or whose dimensions can be adapted.
  • the ignition coil removed from the internal combustion engine is installed in the ignition coil tester and tested there.
  • the shape of the spark plug dome of the ignition coil tester is installed in the ignition coil tester and tested there.
  • the test takes place under almost real environmental conditions. Due to the compact design of the ignition coil tester, in which the necessary aids for spark plug testing are integrated, the ignition coil test can be carried out taking into account the safety-relevant specifications without loose measurement setups outside the internal combustion engine.
  • the diameter of the spark plug dome is adaptable to the diameter of the pencil ignition coil and the spark plug dome of the internal combustion engine by means of an exchangeable insulator and / or an exchangeable metal sleeve. Due to this variable construction, the geometry of the spark plug dome of the internal combustion engine with the ignition coil tester can be optimally modeled. In this case, determines the distance between the metal sleeve and pencil ignition coil by coupling capacitances to the electrical ground of the metal sleeve or the housing of the ignition coil, the degree of damping, which can be adjusted according to the real conditions.
  • the ignition coil tester can be used for different pencil ignition coils with different lengths and for different internal combustion engines with different spark plug dome lengths.
  • a spark plug or a gas spark gap can be switched into the ignition circuit, the necessary tests can be carried out on the pencil ignition coil.
  • the spark plug can be switched into the ignition circuit.
  • a suitable gas gap can be used for ignition signal diagnosis and ignition reserve test.
  • the compensation sleeve can be adapted in their dimensions and in the execution of their end-side contacts to be tested Stabzündspule in the respective installation configuration and to the contacts of the spark gaps, which allows a correspondingly versatile use of the ignition coil.
  • the housing in the region of the capacitive sensor has an opening for a measuring line of the capacitive sensor and / or in the area of the field guide plate a breakthrough for contacting the field guide plate, the corresponding measuring signals with the aid of measuring and / or signal lines from the housing the ignition coil tester of the output electronics and the diagnostic system are supplied.
  • the opening for contacting the field guide plate and the metal sleeve is preferably insulated electrically with a high-voltage insulation against a signal line. This prevents that at the carried out at this point insulation test with respect to high-voltage flashovers in the pencil ignition coil on the field guide plate or on the environment, the measurement signal is dissipated to the housing of the ignition coil.
  • the housing is constructed in one or more parts. It can be prevented in particular by a multi-part structure that difficult to produce undercuts must be made.
  • control module is connected to the housing as a unit.
  • the ignition coil tester can also be designed so that it can be used to test single-spark ignition coils with secondary windings located outside the spark plug dome.
  • the ignition coil tester can be used in such a versatile way.
  • the figure shows an ignition coil tester with inserted pencil ignition coil in a section in the longitudinal direction
  • the figure shows an ignition coil tester 1 with an inserted pencil ignition coil 20.
  • the ignition coil tester 1 consists of a housing 30, which is constructed from an upper housing part 40 and a lower housing part 50.
  • the upper housing part 40 encloses a recess 41 whose dimensions substantially correspond to the dimensions of a spark plug common engine.
  • a replaceable insulator 11 and therein a replaceable metal sleeve 12 are used.
  • Recess 41, insulator 11 and metal sleeve 12 have in the illustrated construction a cylindrical shape. However, other geometries are possible depending on the shape of the pencil ignition coil 20 and the spark plug dome of the internal combustion engine to be readjusted.
  • the cylindrical region 11a of the insulator 11 is delimited by a peripheral end-side termination 11b against which the metal sleeve 12 rests.
  • the metal sleeve 12 is thus completely insulated from the housing 30. If no insulation test is carried out, then the metal sleeve 12 can be connected to ground via a switch 75.
  • the pencil ignition coil 20 with primary winding 21 and secondary winding 22, field guide plate 24 and secondary output 25 is located inside the metal sleeve 12, which limits the spark plug dome 10 of the ignition coil tester 1. Only the connector plug 23 of the pencil ignition coil 20 with the built-in switch-on diode 26 and with integrated output stage is located outside of the spark plug dome 10.
  • a receptacle 42 in the form of a circumferential, step-shaped cutout for receiving a replaceable distance compensation piece 13 is provided.
  • this distance compensation piece 13 the height of the spark plug dome 10 can be adapted to the length and the diameter of the pencil ignition coil 20.
  • the pencil ignition coil 20 rests with its connection plug 23 on the distance compensating piece 13.
  • the housing upper part 40 has a radially arranged opening 43, designed as a bore, whose surface is lined with a high-voltage insulation 44.
  • the breakthrough 43 serves to receive a signal line 71.
  • the lower housing part 50 is flanged on the side of the passage 45 of the upper housing part 40 to this. It forms, together with the underside of the upper housing part 40, a recess 51 which, separated by a movable mounting plate 53, is closed by a spark chamber 52.
  • a gas gap 15 and in a designated threaded bore a spark plug 16 are mounted, the electrodes protrude into the spark chamber 52.
  • other spark gaps for example different gas gaps, may also be provided.
  • a compensation sleeve 14 is provided between the secondary output 25 of the pencil ignition coil 20 and the spark plug 16, which in the example shown is a spark gap in the ignition circuit.
  • This consists of a conductive core 14a, which is embedded in an insulating sleeve 14b.
  • the insulating sleeve 14b itself is fitted into the passage 45 of the housing top 40 and protrudes with its one side into the recess 41 of the housing top 40 and with its other side into the recess 51 of the housing base 50.
  • a capacitive sensor 17 is arranged on the outer surface of the compensating sleeve 14 in the region of the conductive core 14a. This is connected to a measuring line 72 which is guided by a radially mounted in the housing base 50 opening 54 to the outside. The sensor is used for capacitive ignition signal decoupling for the ignition voltage diagnosis.
  • the measuring line 72 and the signal line 71 are guided in a schematically illustrated output electronics 70, which in turn has two measuring outputs 73, 74 for connection of a diagnostic system, not shown.
  • the connection plug 23 of the pencil ignition coil 20 is connected to a control module 60 by means of an adapter line 61.
  • a battery voltage is applied, the positive pole is connected to a contact 65.
  • the control module 60 has a shunt 64 for measuring the secondary ignition current (measuring point 69) and, in the illustrated embodiment, an output stage 62.
  • this output stage 62 can be dispensed with; However, the basic structure of the ignition coil tester 1 and its mode of action remain preserved.
  • the supply voltage at the voltage input 63 of the pencil ignition coil 20 can be variably adjusted, whereby the secondary voltage can be matched to the ignition coil specification.
  • the primary control signal 66 that can be set in the pulse duration, the primary voltage (measurement point 67), the primary current (measurement point 68), the adjustable supply voltage (voltage input 63) and the secondary ignition current (measurement point 69) are available for evaluation. By switching off the supply voltage, a secured change of the spark gaps can be made.
  • the ignition coil tester 1 By expanding the ignition coil tester 1 described, it is also possible to adjust parameters such as the operating temperature of the pencil ignition coil 20 and the compression pressure in the spark chamber 52 to the real conditions existing in the internal combustion engine. The testing of the pencil ignition coils 20 can then be carried out under the same conditions as in the internal combustion engine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Testing Of Engines (AREA)

Claims (9)

  1. Testeur de bobine d'allumage (1) comprenant un module d'excitation (60) et une électronique de sortie (70) pour contrôler le fonctionnement des bobines d'allumage en barre (20), lequel peut être raccordé à un testeur de diagnostic, la bobine d'allumage en barre (20) présentant un enroulement primaire (21) et un enroulement secondaire (22) pour générer la tension d'allumage ainsi qu'une tôle de guidage de champ (24), une fiche de raccordement (23) et une sortie secondaire (25), le testeur de bobine d'allumage (1) présentant un boîtier (30) et une broche de bougie d'allumage (10) pour accueillir la bobine d'allumage en barre (20), dont les dimensions et la forme correspondent pour l'essentiel à celles d'une broche de bougie d'allumage dans un moteur à combustion interne et/ou peuvent être adaptées à ses dimensions, et un manchon de compensation (14) étant prévu comme pièce de liaison entre la sortie secondaire (25) de la bobine d'allumage en barre (20) et un éclateur à gaz (15) ou une bougie d'allumage (16), caractérisé en ce que le manchon de compensation (14) présente une âme conductrice (14a) et un manchon isolant (14b), en ce que le manchon isolant (14b) est ajusté dans une traversée (45) d'une partie supérieure de boîtier (40) et en ce qu'un capteur capacitif (17) est monté sur le manchon de compensation (14) dans la zone de l'âme conductrice (14a) pour le découplage du signal d'allumage.
  2. Testeur de bobine d'allumage (1) selon la revendication 1, caractérisé en ce que le diamètre de la broche de bougie d'allumage (10) peut être adapté au diamètre de la bobine d'allumage en barre (20) et de la broche de bougie d'allumage (10) du moteur à combustion interne au moyen d'un isolateur (11) interchangeable et/ou d'un manchon métallique (12) interchangeable.
  3. Testeur de bobine d'allumage (1) selon la revendication 1 ou 2, caractérisé en ce que la hauteur de la broche de bougie d'allumage (10) peut être adaptée à la longueur et au diamètre de la bobine d'allumage en barre (20) et de la broche de bougie d'allumage (10) du moteur à combustion interne au moyen d'une pièce d'adaptation de distance (13) interchangeable ou réglable.
  4. Testeur de bobine d'allumage (1) selon l'une des revendications 1 à 3, caractérisé en ce qu'une bougie d'allumage (16) ou un éclateur à gaz (15) peuvent être mis en circuit dans le circuit d'allumage.
  5. Testeur de bobine d'allumage (1) selon l'une des revendications 1 à 4, caractérisé en ce que le boîtier (30) présente dans la zone du capteur capacitif (17) une traversée (54) pour une ligne de mesure (72) du capteur capacitif (17) et/ou dans la zone de la tôle de guidage de champ (24) une traversée (43) pour établir le contact avec la tôle de guidage de champ (24).
  6. Testeur de bobine d'allumage (1) selon l'une des revendications 1 à 5, caractérisé en ce que la traversée (43) est isolée électriquement par rapport à une ligne de signal (71) avec une isolation haute tension (44).
  7. Testeur de bobine d'allumage (1) selon l'une des revendications 1 à 6, caractérisé en ce que le boîtier (30) est construit en une ou plusieurs parties.
  8. Testeur de bobine d'allumage (1) selon l'une des revendications 1 à 7, caractérisé en ce que le module d'excitation (60) est relié avec le boîtier (30) sous la forme d'une unité.
  9. Utilisation d'un testeur de bobine d'allumage (1) selon l'une des revendications 1 à 8, caractérisée en ce que le testeur de bobine d'allumage (1) peut être utilisé pour tester des bobines d'allumage individuelles ayant des enroulements secondaires (22) qui se trouvent à l'extérieur de la broche de bougie d'allumage (10).
EP05100499A 2004-01-27 2005-01-26 Dispositif d'essai de bobine d'allumage Not-in-force EP1560232B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102004004005 2004-01-27
DE102004004005 2004-01-27
DE102004017307 2004-04-08
DE102004017307A DE102004017307A1 (de) 2004-01-27 2004-04-08 Zündspulentester

Publications (3)

Publication Number Publication Date
EP1560232A2 EP1560232A2 (fr) 2005-08-03
EP1560232A3 EP1560232A3 (fr) 2009-03-18
EP1560232B1 true EP1560232B1 (fr) 2012-03-14

Family

ID=34654995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05100499A Not-in-force EP1560232B1 (fr) 2004-01-27 2005-01-26 Dispositif d'essai de bobine d'allumage

Country Status (2)

Country Link
US (1) US7212005B2 (fr)
EP (1) EP1560232B1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2899284B1 (fr) * 2006-03-30 2008-05-09 Renault Sas Dispositif de diagnostic d'une bobine d'allumage pour moteur a combustion interne
KR100962506B1 (ko) 2008-07-10 2010-06-14 엘지디스플레이 주식회사 데이터 압축과 복원 방법 및 장치와 이를 이용한액정표시장치와 그 구동방법
US20100271033A1 (en) * 2009-04-28 2010-10-28 Eudell Jennings Lusher Off-vehicle coil tester
US9494125B2 (en) * 2014-06-13 2016-11-15 Innova Electronics, Inc. System and method of ignition coil testing
DE102014219722A1 (de) * 2014-09-29 2016-03-31 Robert Bosch Gmbh Zündsystem und Verfahren zur Überprüfung von Elektroden einer Funkenstrecke
CN106894935A (zh) * 2017-03-30 2017-06-27 重庆长安汽车股份有限公司 一种汽车点火系统的测试设备

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US2071279A (en) * 1935-12-03 1937-02-16 Sorensen Mfg Company Inc P Apparatus for testing ignition coils and condensers
US2501802A (en) * 1947-11-19 1950-03-28 John M Walker Ignition coil tester
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DE29818882U1 (de) 1998-10-23 2000-03-02 Robert Bosch Gmbh, 70469 Stuttgart Zündvorrichtung für eine Brennkraftmaschine
US6396277B1 (en) * 1999-10-01 2002-05-28 Snap-On Technologies, Inc. Coil on plug signal detection
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CN1522340A (zh) * 2001-07-31 2004-08-18 斯耐普昂技术有限公司 高压线圈式火花塞感应采样方法和装置
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US6836120B1 (en) * 2003-02-05 2004-12-28 Steven Alan Lite Automotive ignition coil tester

Also Published As

Publication number Publication date
EP1560232A2 (fr) 2005-08-03
US20050200361A1 (en) 2005-09-15
US7212005B2 (en) 2007-05-01
EP1560232A3 (fr) 2009-03-18

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