СПОСОБ ДЛЯ ДВИГАТЕЛЯ (ВАРИАНТЫ) И СИСТЕМА ДВИГАТЕЛЯ

... 1. Способ для двигателя, включающий в себя этап, на котором:для каждого цилиндра двигателя проводят различие образования нагара на свече зажигания вследствие накопления сажи от образования нагара на свече зажигания вследствие накопления присадки к топливу на основании доли циклов сгорания за один или более заданных ездовых циклов транспортного средства, имеющих время переключения тока зажигания, которое больше, чем пороговая продолжительность времени.2. Способ по п. 1, в котором ток в проводе управления измеряют посредством датчика тока, при этом проведение различия на основании времени переключения тока зажигания включает в себя этап, на котором проводят различие на основании времени переключения, требуемого, чтобы ток падал ниже заданного значения после применения команды выдерживания, причемпороговая продолжительность времени основана на примененной команде выдерживания.3. Способ по п. 1, в котором проведение различия включает в себя этапы, на которых:определяют образование нагара на ...

OPTIMIZED PRODUCTION OF A RADIO FREQUENCY IGNITION SPARK

VERFAHREN ZUM BETREIBEN WENIGSTENS EINER VORKAMMERGEZÜNDETEN BRENNKRAFTMASCHINE

Verfahren zum Betreiben wenigstens einer vorkammergezündeten Brennkraftmaschine (1), insbesondere eines stationären Gas-Otto-Motors, mit einer Vorkammer (2) und einem der Vorkammer (2) zugeordneten Hauptbrennraum (3), wobei der Vorkammer (2) ein Gasgemisch als Spülgas (S) zugeführt wird, wobei dem Spülgas (S) ein in einem Kraftstoffreformer (4) erzeugtes Synthesegas (R) und ein Treibstoff (B2) aus einer Treibstoffquelle zugeführt werden und wobei dem Kraftstoffreformer (4) für den Reformierprozess ein Brennstoff (B1) und wenigstens ein weiterer Stoffstrom (D, L, A) zugeführt werden, wobei wenigstens ein Betriebsparameter der wenigstens einen Brennkraftmaschine überwacht wird, wobei abhängig von einer Änderung des wenigstens einen Betriebsparameters die chemische Zusammensetzung des Spülgases (S) durch eine Änderung des Massenstroms des wenigstens einen weiteren Stoffstroms (D, L, A) verändert wird.

점화코일 및 그 작동방법

... 점화코일 및 점화코일의 작동방법을 개시한다. 본 발명은 점화코일의 작동방법으로서, 점화코일의 변압기로 1차 전압 펄스를 인가하여 2차 전압 펄스를 발생시키고; 1차전류, 1차전압, 2차전류 및/또는 2차전압을 측정하되, 1차전류, 1차전압, 2차전압 및/또는 2차전류의 진로를 측정하여, 기능불량이 감지되면 후속 1차 전압 펄스에서 에러신호를 발생시키고, 상기 에러신호는 이전 1차 전압 펄스 중에 기능불량이 발생한 것을 나타내어 기능불량으로 취급하는 점화코일의 작동방법을 제공한다.

Control Device

Due to changes in a flow of an air-fuel mixture in a cylinder, reliable ignition due to spark discharge may not be possible. Therefore, an ignition control unit 24 includes a secondary voltage calculation unit 31 that calculates an average value of a secondary voltage generated on a secondary side of an ignition coil, an irregular flow ratio calculation unit 32 that calculates a ratio of cycles in which the average value of the secondary voltage is equal to or less than a set average value with respect to a cycle of the internal combustion engine in a predetermined period as an irregular flow ratio indicating that the flow of the air-fuel mixture in the cylinder is irregular, and an ignition operation amount correction unit 37 that corrects an ignition operation amount so that the irregular flow ratio is equal to or less than the set ratio value that is the target to be reached of the irregular flow ratio.

MEASURING DEVICE FOR ELECTRICALLY DECOUPLED FUNCTION TESTING OF WORKING SYSTEMS

The invention relates to a measuring device for electrically decoupled function testing of systems comprising a conductor through which electricity flows. A mechanical-electric transducer, specially in the form of a piezo ceramic element, is assigned to said conductor.

Vorrichtung zum Bestimmen eines Betriebszustandes einer Zündvorrichtung einer Verbrennungskraftmaschine sowie Detektionseinrichtung und Motorarbeitsgerät

Vorrichtung zum Bestimmen eines Betriebszustandes einer Zündvorrichtung einer Verbrennungskraftmaschine, bei welcher mittels einer Messeinrichtung eine von der Zündvorrichtung erzeugte Zündspannung messbar ist, mittels einer Auswerteeinheit ein Verlauf der gemessenen Zündspannung erzeugbar und ausgewertbar ist, und mittels des ausgewerteten Verlaufs der gemessenen Zündspannung der Betriebszustand der Zündvorrichtung bestimmbar ist.

VERFAHREN ZUM BETREIBEN WENIGSTENS EINER VORKAMMERGEZÜNDETEN BRENNKRAFTMASCHINE

Verfahren zum Betreiben wenigstens einer vorkammergezündeten Brennkraftmaschine (1), insbesondere eines stationären Gas-Otto-Motors, mit einer Vorkammer (2) und einem der Vorkammer (2) zugeordneten Hauptbrennraum (3), wobei der Vorkammer (2) ein Gasgemisch als Spülgas (S) zugeführt wird, wobei dem Spülgas (S) ein in einem Kraftstoffreformer (4) erzeugtes Synthesegas (R) und ein Treibstoff (B2 ) aus einer Treibstoffquelle zugeführt werden und wobei dem Kraftstoffreformer (4) für den Reformierprozess ein Brennstoff (B-i) und wenigstens ein weiterer Stoffstrom (D, L, A) zugeführt werden, wobei wenigstens ein Betriebsparameter der wenigstens einen Brennkraftmaschine überwacht wird, wobei abhängig von einer Änderung des wenigstens einen Betriebsparameters die chemische Zusammensetzung des Spülgases (S) durch eine Änderung des Massenstroms des wenigstens einen weiteren Stoffstroms (D, L, A) verändert wird.

An internal combustion engine control device for a plurality of actuators

Steuervorrichtung zum selektiven Ansteuern einer Vielzahl von Aktuatoren einer Brennkraftmaschine, mit: - einer zentralen Steuereinheit (1) - einer Vielzahl von der Vielzahl von Aktuatoren zugeordneten Aktuatorsteuerungen (2), welche mit der zentralen Steuereinheit (1) verbunden sind wobei jede Aktuatorsteuerung (2) der Vielzahl von Aktuatorsteuerungen (2) eine Adresse aufweist, sodass die Aktuatorsteuerungen (2) durch die zentrale Steuereinheit (1) mittels der Adresse selektiv ansteuerbar sind und dass jede Aktuatorsteuerung (2) einen Komparator (6) aufweist, der dazu ausgebildet ist, ein durch die zentrale Steuereinheit (1) abgegebenes Signal, vorzugsweise Spannungs- oder Stromsignal, mit der Adresse zu vergleichen und über eine Aktivierungsleitung (13) ein Aktivierungssignal abzugeben, falls der Vergleich eine Übereinstimmung des Signals mit der Adresse der jeweiligen Aktuatorsteuerung (2) innerhalb eines Fensters, vorzugsweise Spannungsfensters (∆V), ergibt.

Engine`s cylinder identifying method, involves realizing identification by comparison of energy transfer with spark plug of cylinders in position of high dead point between starting and end of conduction of plug

The method involves realizing an identification by comparison of energy transfer with a spark plug of cylinders in position of a high dead point between starting and end of conduction of the plug, where the cylinder in compression phase is the cylinder for which energy transfer is high. The comparison is carried out by comparison of intensity variation of outlet current of a spark plug ignition control device. An independent claim is also included for a method for controlling ignition of an engine.

Ignition control system

DEVICE OF DETECTION Of STATE OF COMBUSTION FOR an INTERNAL COMBUSTION ENGINE

Un dispositif de détection d'état de combustion pour un moteur à combustion interne capable d'empêcher que des bruits soient superposés à un courant ionique, et d'obtenir une valeur de crête souhaitée du courant ionique. Le dispositif comprend une bobine d'allumage (2) qui développe une haute tension d'allumage, une bougie d'allumage, des moyens de polarisation pour charger une tension de polarisation nécessaire pour détecter les ions qui sont déchargés et générés à partir de la bougie d'allumage, des moyens de limitation de courant de décharge, des moyens de détection de courant ionique (30) et une unité de calcul électronique (20) pour détecter un état de combustion dans la bougie d'allumage en se basant sur une valeur de détection du courant ionique. A combustion state detecting device for an internal combustion engine capable of preventing noises from being superimposed on ion current, and obtaining a desired peak value of ion current. The device comprises an ignition coil (2) which develops a high ignition voltage, a spark plug, bias means for charging a bias voltage necessary to detect the ions which are discharged and generated from the spark plug, discharge current limiting means, ion current detecting means (30) and an electronic calculating unit (20) for detecting a combustion state in the spark plug based on a ion current detection value.

내연 기관의 점화 제어 시스템

ECU (40) 는, 점화용 통신선 (Li) 을 통하여 점화 장치 (30) 에 점화 신호 (Si) 를 출력함과 함께 파형 제어용 통신선 (Lc) 을 통하여 논리 H 의 방전 파형 제어 신호 (Sc) 를 출력한다. 점화 장치 (30) 는, 점화 신호 (Si) 가 입력되고 있는 기간, 점화용 스위칭 소자 (60) 를 폐쇄 조작한다. 점화 장치 (30) 는, 점화 신호 (Si) 의 입력 정지 후로서 방전 파형 제어 신호 (Sc) 의 입력 기간에 있어서, 제어용 스위칭 소자 (80) 의 개폐 조작에 의해, 1 차측 코일 (52) 에 흐르는 전류를 제어한다. ECU (40) 는, 방전 파형 제어 신호 (Sc) 의 출력 정지 기간에 있어서, 파형 제어용 통신선 (Lc) 의 전압이 논리 H 가 되는 경우, 파형 제어용 통신선 (Lc) 에 이상이 있는 것으로 하여 페일 세이프 처리를 실행한다.

THE SERVO CONTROL COMBUSTION TURBULENCE FOR CONTROLING THE SUPPLY OF FUEL OR AIR/MEASURED MEASURED THE EGR SUPPLY TO AN INTERNAL COMBUSTION ENGINE

DIAGNOSIS OF THE FOULING CONDITION OF SPARKPLUGS IN A RADIOFREQUENCY IGNITION SYSTEM

The invention relates to a radiofrequency ignition device that comprises: a control means (5) capable of generating an ignition control signal (V1); a supply circuit (2) controlled by the ignition control signal (V1) for applying a supply voltage on an output interface (OUT) of the supply circuit at the frequency defined by the control signal; at least one plasma generation resonator (1) connected on the output interface of the supply circuit and capable of generating a spark between two ignition electrodes (10, 12) of said resonator upon an ignition control; wherein said device is characterised in that it comprises: a means (6) for measuring an electric parameter representative of a variation in the supply voltage of the resonator; a module (7) for determining the fouling condition of the electrodes based on the measured electric parameter and on a predetermined reference value.

METHOD FOR OPERATING AT LEAST ONE PRECOMBUSTION CHAMBER-FIRED INTERNAL COMBUSTION ENGINE

The invention relates to a method for operating at least one precombustion chamber-fired internal combustion engine (1), in particular a stationary gas Otto cycle engine, having a pilot chamber (2) and a main combustion chamber (3) associated with the precombustion chamber (2), wherein a gas mixture is fed to the precombustion chamber (2) as flushing gas (S), wherein a synthesis gas (R) generated in a fuel reformer (4) and a fuel (B2) from a fuel source are fed to the flushing gas (S) and wherein a fuel (B1) and at least one further substance stream (D, L, A) are fed to the fuel reformer (4) for the reforming process, wherein at least one operating parameter of the at least one internal combustion engine is monitored, wherein in accordance with a change in the at least one operating parameter the chemical composition of the flushing gas (S) is modified by changing the mass stream of the at least one further substance stream (D, L, A).

Ignition Device for Internal Combustion Engine and Control Device for Internal Combustion Engine

Please substitute the new Abstract submitted herewith for the original Abstract: Energization abnormality of a switch element of an internal combustion engine ignition device is detected appropriately. To this end, in an internal combustion engine ignition device that includes an ignition coil and an ignition plug, the ignition coil includes a primary coil including a main primary coil and a sub primary coil and a secondary coil that generates secondary current in response to a voltage variation generated in the primary coil. The internal combustion engine ignition device includes a main switch element that performs energization/deenergization of the main primary coil in a first direction, a sub primary coil magnetic flux generation state switching unit capable of switching between a forward direction magnetic flux generation state in which energization of the sub primary coil in the first direction is performed and an opposite direction magnetic flux generation state in which energization ...

Efficient diagnosis of faulty distributorless and hybrid ignition systems

A method for efficiently determining whether a distributorless or hybrid ignition system is the origin of engine problems by consecutively disconnecting and reconnecting the primary connector from each coil of the ignition system. Once a single primary connector is disconnected from a coil and engine misfiring or roughness declines, the problem cylinder pair has been located. The method further includes measuring the firing line voltage of accessible spark plug wires for each cylinder to identify a single faulty cylinder, that may now be serviced.

Measuring device for the electrically decoupled functional checking of working systems

Measurement arrangement for electrically decoupled functional testing of systems in operation The arrangement has a current carrying conductor (2) directly mechanically coupled to a mechanical-electrical transducer (8) via an essentially incompressible medium. The transducer detects vibrations caused by the conductor and feeds the signal to an evaluation unit via an amplifier. The mechanical-electrical transducer is in the form of a strain gauge system or a piezoceramic element. The piezoceramic element can be a knock detector and the current carrying conductor can be the ignition coil of an internal combustion engine.

Apparatus for diagnosing a spark ignition engine

Diagnosis circuit for motor vehicle ignition compares detected plug voltage to preset value with regard to crankshaft angle The diagnosis circuit is for a motor vehicle engine ignition. Each cylinder has a spark plug connected via a potential cut off diode (20) connected with the secondary winding (14) of the ignition coil (12). The voltage (UZ) applied to the plug is compared to a preset value (US) by a comparator (30). The switching signal (UK) is evaluated as a signal fed to the fuel injector adjacent to the plug. The spark position is compared to a preset crankshaft rotational position.

ОПТИМИЗАЦИЯ ГЕНЕРИРОВАНИЯ ИСКРЫ РАДИОЧАСТОТНОГО ЗАЖИГАНИЯ

... 1. Способ управления радиочастотным генератором плазмы, содержащим ! цепь (2) питания, содержащую выключатель (9), управляемый сигналом управления (V1) в виде, по меньшей мере, одной серии импульсов управления, подающий промежуточное напряжение (Vinter) на выход цепи питания на частоте, определяемой сигналом управления, ! резонатор (6), соединенный с выходом цепи питания и выполненный с возможностью генерирования искры между двумя электродами (103, 106), когда на выход цепи питания подается высокое напряжение определенного уровня, включающий: ! прием первых сигналов измерения, характеризующих работу двигателя внутреннего сгорания, ! прием вторых сигналов электрического измерения, характеризующих тип генерируемой искры, и ! регулирование в режиме реального времени в зависимости от принятых первых и вторых сигналов измерения уровня промежуточного напряжения и продолжительности серии импульсов управления. ! 2. Способ по п.1, в котором регулируют число указанных серий и время между сериями, ...

Hochfrequenzentladungs-Zündvorrichtung

Eine Hochfrequenzentladungs-Zündvorrichtung umfasst eine Stromversorgungsvorrichtung (70), welche einem Funkenentladungspfad, der in einem Spalt einer Zündkerze (40) gebildet ist, einen Wechselstrom zuführt, eine Steuervorrichtung (10), welche den Betrieb der Stromversorgungsvorrichtung (70) steuert, und eine Spannungserfassungsvorrichtung (50), welche ein Signal eines Abschnitts ausgibt, wo eine magnetische Induktionsspannung einer Primärspule (31a), die erzeugt ist, nachdem ein Schaltelement (20) einer Zündspulenvorrichtung (30) in einen Abschaltzustand versetzt ist, eine vorbestimmte Spannung überschreitet, und wobei die Steuervorrichtung (10) die Zeitgebung bestimmt, wenn der Funkenentladungspfad in dem Spalt der Zündkerze gebildet worden ist, gemäß einem Ausgangssignal der Spannungserfassungsvorrichtung (50), und die Stromversorgungsvorrichtung (70) auf Grundlage der Zeitgebung betreibt, wenn der Funkenentladungspfad in dem Spalt der Zündkerze (40) gebildet worden ist, um dem Funkenentladungspfad ...

Method for determining defect of internal combustion engine of motor vehicle, involves carrying out particle concentration measurement, which follows active change of function or operating state of internal combustion engine

The method involves detecting a particle concentration, particularly of soot particles during or after the combustion of a fuel-air mixture. The particle concentration measurement is carried out, which follows an active change of a function or an operating state of the internal combustion engine and another particle concentration measurement is carried out after the active change of the function or operating state of the internal combustion engine. The defect of the internal combustion engine is closed in an occurrence of a deviation of the particle concentrations of the former particle concentration measurement from the particle concentration of the latter particle concentration measurement. An independent claim is included for a device for determining a defect of an internal combustion engine.

Method for operating Otto internal-combustion engine, involves injecting fuel into combustion chamber of cylinder directly or indirectly, where combustion mixture is ignited in combustion chamber by ignition system

The method involves injecting a fuel into a combustion chamber of a cylinder directly or indirectly. The combustion mixture is ignited in a combustion chamber by an ignition system to a given ignition time point. An electrical measured variable (U1,U2,U3) or correcting variable of a Corona ignition system are evaluated for diagnosing the combustion, where combustion parameters are affected by combustion.

Method and apparatus for inspecting spark plug while spark plug is installed in engine

OPTIMISED GENERATION OF A RADIO FREQUENCY IGNITION SPARK

DEVICE OF IGNITION FOR MICROWAVES, AND, METHOD TO DIAGNOSIS A DIRT STATE OF THE IGNITION ELECTRODES

microwave ignition device, and, method for diagnosing a state of fouling of the electrodes of ignition

sistema de ignição e processo para o controle de um sistema de ignição para um motor de combustão interna de ignição por faísca

Misfire detector device for use in an internal combustion engine

In a misfire detector device for use in internal combustion engine, an electrical interrupter circuit on-off actuates a primary current flowing through a primary circuit of an ignition coil to induce a spark plug voltage. A check diode is provided in a secondary circuit of the ignition coil to prevent a current flowing back to the ignition coil. The spark plug has a center electrode, a front end of which is projected from an insulator, and an outer surface area of the projected front end being 25 mm2 or more. A spark plug voltage detector circuit detects an attenuation time length of a spark plug voltage waveform presented subsequent to a predetermined time period occurring after an end of a spark action of the spark plug. On the basis of the attenuation time length, a distinction circuit determines whether a misfire occurs in a cylinder of an internal combustion engine.

Apparatus and method for controlling ignition of an internal combustion engine

In the ignition apparatus for internal combustion engine according to the invention, during a period when spark discharge voltage is detected by a waveform detecting unit 20 and an ignition coil 12 supplies the spark discharge voltage by use of ignition detection 22, ignition in each of cylinders is detected in accordance with discharged voltage by the waveform detecting unit 20. When the ignition detection 22 detects the ignition by use of, for example, an ignition control unit 24, during a discharging period of supplying the spark discharge voltage having detected the ignition, the supply of the spark discharge voltage is stopped. Thereby, since the supply of the spark discharge voltage is stopped after having detected the ignition, it is possible to avoid the surplus supply of spark energy to the spark plug 10 after having fired.

Method and device for detecting the breakdown voltage between the electrodes of a spark plug connected to an ignition coil for a cylinder ignition system in an internal combustion engine

A method of detecting the breakdown voltage between the electrodes of a spark plug connected to an ignition coil for a cylinder ignition system, in an internal combustion engine, includes a detection of an opening of the switch on the primary winding and a detection of a voltage on that primary winding, with the generation of a first signal representative of the voltage trend following the opening of the switch. The first signal is then integrated and, following an identification of a breakdown at the ends of the spark plug, a breakdown voltage value is determined as a function of the value of the integrated signal at the time of the breakdown.

IGNITION SYSTEM AND METHOD FOR OPERATING AN IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

Measuring device for the electrically decoupled functional checking of working systems

Measurement arrangement for electrically decoupled functional testing of systems in operation The arrangement has a current carrying conductor (2) directly mechanically coupled to a mechanical-electrical transducer (8) via an essentially incompressible medium. The transducer detects vibrations caused by the conductor and feeds the signal to an evaluation unit via an amplifier. The mechanical-electrical transducer is in the form of a strain gauge system or a piezoceramic element. The piezoceramic element can be a knock detector and the current carrying conductor can be the ignition coil of an internal combustion engine.

СИСТЕМА КОНТРОЛЯ СВЕЧИ ЗАЖИГАНИЯ (ВАРИАНТЫ) И СПОСОБ КОНТРОЛЯ

FIELD: engines and pumps. SUBSTANCE: invention relates to automotive industry. It discloses the spark plug control and cleaning system. In compliance with one version, the determination of carbon-bearing soot amount on ceramics of the spark plug central electrode is executed subject to the voltage across the instrument resistor electrically connected with the spark plug. Said soot detected, claimed system can clean the spark plug to reduce the probability of engines misfires. EFFECT: decreased toxic emissions. 18 cl, 6 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК F02P 3/00 (11) (13) 2 577 036 C2 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013105146/07, 07.02.2013 (24) Дата начала отсчета срока действия патента: 07.02.2013 (72) Автор(ы): ХЬЮБЕРТС Гарлан Дж. (US), ЦЮЙ Цюпин (US) (73) Патентообладатель(и): Форд Глобал Технолоджис, ЛЛК (US) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 20.08.2014 Бюл. № 23 R U 10.02.2012 US 13/371170 (45) Опубликовано: 10.03.2016 Бюл. № 7 2 5 7 7 0 3 6 R U (54) СИСТЕМА КОНТРОЛЯ СВЕЧИ ЗАЖИГАНИЯ (ВАРИАНТЫ) И СПОСОБ КОНТРОЛЯ (57) Реферат: Изобретение относится к системам зажигания зажигания производится в зависимости от двигателей внутреннего сгорания. Технический величины напряжения на измерительном результат - снижение токсичных выбросов резисторе, который электрически связан со свечой двигателя. Раскрыта система для контроля и зажигания. После обнаружения очистки свечи зажигания. Согласно одному углеродсодержащей сажи система может примеру, определение количества производить очистку свечи, так что может быть углеродсодержащей сажи на керамике уменьшена вероятность пропусков зажигания в центрального электрода искровой свечи двигателе. 3 н. и 15 з.п. ф-лы, 6 ил. Стр.: 1 C 2 C 2 Адрес для переписки: 197101, Санкт-Петербург, а/я 128, "АРСПАТЕНТ" 2 5 7 7 0 3 6 (56) Список документов, цитированных в отчете о поиске: RU 2267633 C2, 10.01.2006. RU ...

РАДИОЧАСТОТНОЕ УСТРОЙСТВО ГЕНЕРИРОВАНИЯ ПЛАЗМЫ

FIELD: engines and pumps. SUBSTANCE: proposed device comprises voltage generator 5 and ignition unit 9 including ignition plug 4 and switch 7 arranged between plug feed terminal and generator output. Switch 7 allows connecting voltage generator output with said ignition plug 4 in response to command signal VI. Device comprises electronic control unit UC to generate said command signal VI. Said electronic control unit UC comprises means M to measure magnitudes characterising generator output voltage variations in time and device A to vary current voltage and/or frequency depending upon magnitudes set by said measuring means. Generator output voltage variation describes health of ignition plug (new or worn-out). EFFECT: control over quality of plug spark. 9 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 474 723 (13) C2 (51) МПК F02P F02P F02P F02P H01T 3/055 9/00 15/00 17/12 13/50 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010108323/07, 30.07.2008 (24) Дата начала отсчета срока действия патента: 30.07.2008 (73) Патентообладатель(и): РЕНО С.А.С. (FR) (43) Дата публикации заявки: 20.09.2011 Бюл. № 26 2 4 7 4 7 2 3 (45) Опубликовано: 10.02.2013 Бюл. № 4 2 4 7 4 7 2 3 R U (85) Дата начала рассмотрения заявки PCT на национальной фазе: 09.03.2010 C 2 C 2 (56) Список документов, цитированных в отчете о поиске: RU 2256091 С2, 10.07.2005. RU 2268394 С2, 20.01.2006. RU 2106518 С1, 20.01.2006. GB 2085076 А, 21.04.1982. DE 102005036968 А1, 21.04.2007. FR 2895169 А, 22.06.2007. ЕР 0344349 А1, 06.12.1989. ЕР 1515408 А2, 16.03.2005. (86) Заявка PCT: FR 2008/051433 (30.07.2008) (87) Публикация заявки РСТ: WO 2009/024713 (26.02.2009) Адрес для переписки: 103735, Москва, ул.Ильинка, 5/2, ООО "Союзпатент", пат.пов. Ю.Б.Перегудовой, рег. № 1103 (54) РАДИОЧАСТОТНОЕ УСТРОЙСТВО ГЕНЕРИРОВАНИЯ ПЛАЗМЫ (57) Реферат: Изобретение относится к радиочастотным устройствам генерирования ...

СИСТЕМА КОНТРОЛЯ СВЕЧИ ЗАЖИГАНИЯ (ВАРИАНТЫ) И СПОСОБ КОНТРОЛЯ

... 1. Система контроля свечи зажигания, содержащая катушку зажигания, включающую в себя первичную и вторичную обмотки; искровую свечу, электрически связанную с вторичной обмоткой; измерительный резистор, электрически соединенный последовательно с вторичной обмоткой и искровой свечой; и контроллер, содержащий инструкции, хранящиеся в запоминающем устройстве, для регулирования работы двигателя в зависимости от электрической характеристики измерительного резистора во время подачи питания на первичную обмотку.2. Система по п.1, отличающаяся тем, что регулирование работы двигателя включает регулирование воздушно-топливной смеси, при этом катушка зажигания обеспечивает положительную полярность подводимого к свече напряжения.3. Система по п.1, отличающаяся тем, что регулирование работы двигателя включает увеличение нагрузки, прикладываемой к двигателю, при этом электрической характеристикой измерительного резистора является напряжение на измерительном резисторе, и предусмотрено инвертирование напряжения ...

VERFAHREN UND VORRICHTUNG ZUR SCHÄTZUNG DER VERSCHLEISSRATE EINER ZÜNDKERZENELEKTRODE

Es wird ein Verfahren zum Schätzen einer Verschleißrate einer Zündkerzenelektrode bereitgestellt, das eine Verbesserung der Genauigkeit einer geschätzten Elektrodenverschleißrate ermöglicht und das für eine Zündkerze (20) ausgelegt ist, in der eine Funkenentladung zwischen zwei Elektroden (23, 27) durch Anlegen einer Spannung, die durch eine Zündspule (11) erzeugt wird, stattfindet. Das Verfahren umfasst einen ersten Verschleißraten-Schätzschritt des Schätzens einer Verschleißrate einer ersten Elektrode (23) bei einer Funkenentladung basierend auf einer Temperatur der ersten Elektrode (23) und Funkenentladungsspannung und Versorgungsenergie von der Zündspule (11). Die erste Elektrode (23) enthält eines von Ir, Ru, W und Ni als einen Hauptbestandteil. There is provided a method of estimating a wear rate of a spark plug electrode which enables an improvement in the accuracy of an estimated electrode wear rate and which is adapted for a spark plug (20) in which a spark discharge between two electrodes (23, 27) by applying a voltage is generated by an ignition coil (11) takes place. The method includes a first wear rate estimating step of estimating a wear rate of a first electrode (23) upon a spark discharge based on a temperature of the first electrode (23) and spark discharge voltage and supply energy from the ignition coil (11). The first electrode (23) contains one of Ir, Ru, W, and Ni as a main component.

An internal combustion engine control device for a plurality of actuators

Steuervorrichtung zum selektiven Ansteuern einer Vielzahl von Aktuatoren einer Brennkraftmaschine, mit: - einer zentralen Steuereinheit (1) - einer Vielzahl von der Vielzahl von Aktuatoren zugeordneten Aktuatorsteuerungen (2), welche mit der zentralen Steuereinheit (1) verbunden sind wobei jede Aktuatorsteuerung (2) der Vielzahl von Aktuatorsteuerungen (2) eine Adresse aufweist, sodass die Aktuatorsteuerungen (2) durch die zentrale Steuereinheit (1) mittels der Adresse selektiv ansteuerbar sind und dass jede Aktuatorsteuerung (2) einen Komparator (6) aufweist, der dazu ausgebildet ist, ein durch die zentrale Steuereinheit (1) abgegebenes Signal, vorzugsweise Spannungs- oder Stromsignal, mit der Adresse zu vergleichen und über eine Aktivierungsleitung (13) ein Aktivierungssignal abzugeben, falls der Vergleich eine Übereinstimmung des Signals mit der Adresse der jeweiligen Aktuatorsteuerung (2) innerhalb eines Fensters, vorzugsweise Spannungsfensters (ΔV), ergibt.

Engine monitoring system and associated method

An engine service monitoring system and method for an engine having a spark plug, an ignition circuit with a transformer and a spark plug wire disposed between the spark plug and a coil of the transformer. A counting circuit for counting the ignition or spark pulses is inductively coupled to the spark plug wire such that for every spark pulse generated, a DC pulse is provided by a rectifier of the counting circuit. The DC pulses are provided to a computing element which computes the total number of the pulses, selectively adjusts the count on the basis of a low-oil pressure condition, an out-of-range temperature condition or other suitable operator-defined condition. The computing element also compares the adjusted count with one or more service change interval threshold values to provide an alarm to indicate that a service change is needed. The threshold values are either factory-set or field-adjustable.

IGNITION APPARATUS

There is provided an ignition apparatus that performs optimum energy control by suppressing a secondary current at a time when the ignition plug is consumed, while maintaining the simplicity, the small size, and the low cost and while securing the flammability. The ignition apparatus is provided with a first switching circuit that turns on or off energization from a power source to a primary coil, a secondary coil that is magnetically coupled with the primary coil and supplies a secondary current to an ignition plug, and a controller that decreases the secondary current for a spark discharge by use of an energy-changeable circuit, when determining that the ignition plug has been consumed, based on an output of a plug-consumption detection circuit. 1. An ignition apparatus comprising:an ignition coil having a primary coil and a secondary coil that is magnetically coupled with the primary coil and supplies a secondary current to an ignition plug;a first switching circuit that turns on or off energization from a power source to the primary coil;an energy-changeable circuit that can change magnitude of the secondary current;a plug-consumption detection circuit that detects that the ignition plug has been consumed; anda controller that performs on/off-control of the first switching circuit so that the secondary current is generated in the secondary coil by a change in magnetic flux generated in the primary coil and a spark discharge is produced in the ignition plug and that decreases the secondary current by use of the energy-changeable circuit, when determining that the ignition plug has been consumed, based on an output of the plug-consumption detection circuit.2. The ignition apparatus according to claim 1 ,wherein the ignition coil has a tertiary coil that is magnetically coupled with the primary coil and the secondary coil and generates energization flux for decreasing the secondary current,wherein the energy-changeable circuit has a second switching circuit for ...

Spark plug fouling detection for ignition system

Methods and systems are provided for determining a type of spark plug fouling. In one example, a method may include differentiating spark plug fouling due to soot accumulation from spark plug fouling due to fuel additive accumulation based on a current on a control wire of the spark plug following application of a dwell command. Further, exhaust oxygen sensor degradation and/or exhaust catalyst degradation may be determined based on switching frequencies of one or more exhaust oxygen sensors and the type of spark plug fouling.

IGNITION SYSTEM AND METHOD FOR OPERATING AN IGNITION SYSTEM

A misfire detector device for use in internal combustion engine

In a misfire detector device for use in internal combustion engine, an electrical interrupter circuit on-off actuates a primary current flowing through a primary circuit of an ignition coil to induce a sparkplug voltage which is applied to a multi-electrode type spark plug. A check diode or a series gap is provided in a secondary circuit of the ignition coil to prevent a current flowing back to the ignition coil. A sparkplug voltage detector circuit detects an attenuation time length of a sparkplug voltage waveform presented subsequent to a time period predetermined after an end of a spark action of the spark plug. On the basis of the attenuation time length, a distinction circuit determines whether a misfire occurs in a cylinder of an internal combustion engine. ...

СПОСОБ ДЛЯ ДВИГАТЕЛЯ (ВАРИАНТЫ) И СИСТЕМА ДВИГАТЕЛЯ

FIELD: motors and pumps. SUBSTANCE: invention relates to methods and systems for detecting and distinguishing carbon black formation due to soot accumulation on ignition spark plugs from carbon black formation due to fuel additives in internal combustion engines. In one example, the method may include distinguishing the formation of carbon deposits on spark plugs due to soot accumulation from the formation of carbon deposits on spark plugs due to the accumulation of fuel additives based on the current in the control wire of the spark plug followed by the use of the holding command. In addition, deterioration in the performance of the exhaust gas sensor and/or degradation of the exhaust gas catalytic converter can be determined based on the switching frequencies of one or more exhaust gas oxygen sensors and the type of formation of carbon deposits on spark plugs. EFFECT: reduction and elimination of premature ignition. 20 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 660 735 C2 (51) МПК F02P 17/10 (2006.01) F02P 17/12 (2006.01) F02P 3/045 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F02P 17/10 (2018.02); F02P 17/12 (2018.02); F02P 3/0456 (2018.02); F01N 11/00 (2018.02); F02B 2075/125 (2018.02); F02D 2041/227 (2018.02); F02D 2041/228 (2018.02); F02D 41/1441 (2018.02); F02D 41/1454 (2018.02); F02D 41/1495 (2018.02) (21)(22) Заявка: 2014149334, 08.12.2014 08.12.2014 Дата регистрации: (73) Патентообладатель(и): ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи (US) Приоритет(ы): (30) Конвенционный приоритет: 19.12.2013 US 61/918,593; 06.11.2014 US 14/535,174 (56) Список документов, цитированных в отчете о поиске: RU 134438 U1, 20.11.2013. RU (43) Дата публикации заявки: 27.06.2016 Бюл. № 18 2 6 6 0 7 3 5 R U Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) СПОСОБ ДЛЯ ДВИГАТЕЛЯ (ВАРИАНТЫ) И СИСТЕМА ДВИГАТЕЛЯ (57) Реферат: Изобретение относится к ...

Patent RU2014149334A3

Method for detecting allocation error between fuel spray and spark gap in internal combustion engine, involves determining electrical ignition secondary voltage during sparking phase of spark plug in cylinder, and detecting allocation error

The method involves determining an electrical ignition secondary voltage during a sparking phase of a spark plug (12) in a cylinder (11). An allocation error is detected between a fuel spray and a spark gap from the time profile of the electrical ignition secondary voltage. The electrical ignition secondary voltage is determined by measuring a voltage drop across an ignition cable (2), spark plug with a resistor suppressors (13) and the spark gap. The electrical ignition secondary voltage is determined by applying an electrical voltage at the primary low-voltage side of an ignition coil (3). Independent claims are also included for the following: (1) a computer program for executing the detection method; (2) a data carrier for storing the computer program; and (3) a control unit for identifying the allocation error.

Verfahren und Vorrichtung zur Identfikation von gasdynamischen Effekten

Verfahrenzur Identifikation eines in einer Brennkammer auftretenden gasdynamischen Effektes einer im Schichtbetrieb arbeitenden Brennkraftmaschine, bei der die Zündung eines in der Brennkammer zu entflammenden Gemisches mittels einer Zündkerze (2) erfolgt, und in Abhängigkeit von während des Zündvorgangs auftretenden Messsignalen an der jeweils zugehörigen Zündspule gasdynamische Effekte detektiert werden, wobei- in Abhängigkeit von einem an der primärseitigen und/oder sekundärseitigen Spulenspannung (U; U)- und/oder in Abhängigkeit von einem sekundärseitigen Spulenstrom (Isek)- und/oder in Abhängigkeit von einer primärseitigen und/oder sekundärseitigen Spulenspannung (U; U) und/oder dem sekundärseitigen Spulenstrom (I) korrelierenden Parameter auf das Vorliegen eines gasdynamischen Effektes geschlossen wird, dadurch gekennzeichnet, dass in Abhängigkeit von dem Gradienten der Spulenspannung (U; U) und/oder dem Gradienten des Spulenstroms (I) und/oder dem Gradienten des korrelierenden Parameters ...

Arrangement for detecting internal combustion engine combustion state has discharge current limiter between ignition current path formed by ion discharge at ignition plug, bias device

The arrangement has an ignition coil arrangement (2), a bias voltage arrangement (13,12) for charging a bias voltage required for detecting ions generated as a result of discharges in the ignition plug (4a) when a high ignition voltage is applied, a limiter (10,11) for the discharge current, an ion current detector (30) and an ECU (20) for detecting a combustion state in the ignition plug depending on the detected ion current. The limiter is arranged between an ignition current path formed by the ion discharge at the ignition plug and the bias arrangement ...

Detection system for determining spark voltage

A detection system (59) for determining spark voltage of a spark plug (54) in a capacitive discharge ignition system (52) is disclosed. The detection system may have a sensor circuit (60) configured to detect occurrence of a spark by measuring a voltage on a low side (78) of a primary coil (68). The detection system may also have an electronic control unit (58) connected to the sensor circuit. The electronic control unit may be configured to receive a signal from the sensor circuit indicating that the voltage exceeded a threshold. The electronic control unit may be further configured to determine a spark time based on the signal, and determine a spark voltage based on the spark time.

IGNITION SYSTEM INCLUDING A MEASUREMENT DEVICE FOR PROVIDING MEASUREMENT SIGNALS TO A COMBUSTION ENGINE'S CONTROL SYSTEM

The present invention relates to an ignition system (T) for a combustion engine, the internal combustion engine comprising a control system, the ignition system (T) further comprising a power source (30), at least one ignition coil (10, 1 1, 12) having at least one primary coil (L2, L4, L6) and one secondary coil (L3, L5, L7) for a spark plug (13, 14, 15) and a measurement device (50) for at least one of the parameters spark current, ion current, ignition voltage and primary voltage, said measurement device (50) being adapted to provide measurement signals to said control system for regulating the ignition system (T), the ignition system (T) also comprising means for transforming up voltage and storing energy, and a plurality of switches (S1-S7), said control system being adapted to control said switches (S1-S7), by means of said measuring signal(s), for the supply of adaptive spark energy and/or to control the polarity of the spark.

Ignition system

METHOD AND APPARATUS FOR MISFIRE DETECTION IN A CYLINDER OF AN INTERNAL COMBUSTION ENGINE AND APPLICATION.

METHODS FOR DIAGNOSIS FAULTY DISTRIBUTORLESS AND HYBRID IGNITION SYSTEMS

A method for efficiently determining whether a distributorless or hybrid ignition system is the origin of engine problems by consecutively disconnecting and reconnecting the primary connector from each coil of the ignition system. Once a single primary connector is disconnected from a coil and engine misfiring or roughness declines, the problem cylinder pair has been located. The method further includes measuring the firing line voltage of accessible spark plug wires for each cylinder to identify a single faulty cylinder.

Misfire-detecting system for internal combustion engines

A misfire-detecting system for an internal combustion engine detects a value of sparking voltage generated after generation of an ignition command signal, compares the detected value of sparking voltage with a predetermined voltage value, and determines whether or not a misfire has occurred in the engine, based upon results of the comparison. The determination as to occurrence of the misfire is effected, based upon results of the comparison between the detected value of the sparking voltage and the predetermined voltage value, obtained within a previously set limited comparison period.

Apparatus and method for controlling ignition of an internal combustion engine

In the ignition apparatus for internal combustion engine according to the invention, during a period when spark discharge voltage is detected by a waveform detecting unit 20 and an ignition coil 12 supplies the spark discharge voltage by use of ignition detection 22, ignition in each of cylinders is detected in accordance with discharged voltage by the waveform detecting unit 20. When the ignition detection 22 detects the ignition by use of, for example, an ignition control unit 24, during a discharging period of supplying the spark discharge voltage having detected the ignition, the supply of the spark discharge voltage is stopped. Thereby, since the supply of the spark discharge voltage is stopped after having detected the ignition, it is possible to avoid the surplus supply of spark energy to the spark plug 10 after having fired.

Apparatus for diagnosing and controlling an ignition system of an internal combustion engine

ДИАГНОСТИКА СОСТОЯНИЯ ЗАГРЯЗНЕНИЯ СВЕЧЕЙ СИСТЕМЫ РАДИОЧАСТОТНОГО ЗАЖИГАНИЯ

FIELD: electricity. SUBSTANCE: device for radio frequency ignition includes control aids (5) designed with possibility of ignition control signal (VI) generation, power circuit (2) controlled by ignition control signal (VI) for power voltage supply to output interface (OUT) of power circuit at frequency determined by control signal, at least one resonator (1) of plasma generation connected to output interface of power circuit and designed with possibility of spark generation between two electrodes (10, 12) of ignition of the resonator during ignition command. This device includes means (6) for measuring of electrical parameter characterising change of resonator power voltage, module (7) for determination of state of electrodes contamination depending on measured electrical parameter and predetermined control value. EFFECT: enhancing diagnostics of contamination state of radio-frequency coil-plug electrodes. 11 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 461 730 (13) C2 (51) МПК F02P F02P F02P F02P H01T 17/12 3/055 15/00 15/12 13/60 (2006.01) (2006.01) (2006.01) (2006.01) (2011.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010100824/07, 04.06.2008 (24) Дата начала отсчета срока действия патента: 04.06.2008 (73) Патентообладатель(и): РЕНО С.А.С. (FR) (43) Дата публикации заявки: 20.07.2011 Бюл. № 20 2 4 6 1 7 3 0 (45) Опубликовано: 20.09.2012 Бюл. № 26 2 4 6 1 7 3 0 R U (85) Дата начала рассмотрения заявки PCT на национальной фазе: 12.01.2010 C 2 C 2 (56) Список документов, цитированных в отчете о поиске: RU 2094646 C1, 27.10.1997. RU 2268394 C2, 20.01.2006. RU 2105188 C1, 20.02.1998. SU 1318719 C1, 23.06.1987. US 20040237950 A, 02.12.2004. FR 2649759 A, 18.01.1991. FR 2859869 A1, 18.03.2005. EP 0434217 A, 26.06.1991. (86) Заявка PCT: FR 2008/050986 (04.06.2008) (87) Публикация заявки РСТ: WO 2009/004204 (08.01.2009) Адрес для переписки: 101000, Москва, ул. Мясницкая, 13, стр.5, К-9, ГСП-9, пат.пов., Ю ...

ОПТИМИЗАЦИЯ ГЕНЕРИРОВАНИЯ ИСКРЫ РАДИОЧАСТОТНОГО ЗАЖИГАНИЯ

Изобретение относится к автомобильным системам зажигания. Описан способ управления радиочастотным генератором плазмы, содержащим цепь (2) питания, содержащую выключатель (9), управляемый, по меньшей мере, одной серией импульсов управления, подающий промежуточное напряжение (Vinter) на частоте управления на выход, с которым соединен резонатор (6), генерирующий искру двумя электродами (103, 106), когда на выход цепи питания подается высокое напряжение определенного уровня. Способ включает прием первых и вторых сигналов измерения, характеризующих соответственно работу двигателя внутреннего сгорания и тип генерируемой искры, регулирование в режиме реального времени, в зависимости от принятых сигналов измерения, по меньшей мере, одного параметра, выбранного, по меньшей мере, из уровня промежуточного напряжения, частоты управления и продолжительности серии импульсов управления, чтобы способствовать разветвлению генерируемой искры. Технический результат - повышение надежности зажигания путем предотвращения ...

СИСТЕМА УПРАВЛЕНИЯ ЗАЖИГАНИЕМ ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

Изобретение относится к системе управления зажиганием для двигателя внутреннего сгорания, которая управляет током разряда свечи зажигания после начала разряда свечи зажигания. Техническим результатом является определение неисправности линии передачи сигнала управления формой импульса, которая передает сигнал управления формой импульса разряда. Результат достигается тем, что ЭБУ (40) выдает сигнал Si зажигания на устройство (30) зажигания через линию (Li) передачи зажигания и выдает сигнал Sc управления формой импульса разряда с логическим значением Н через линию (Lc) передачи сигнала управления формой импульса. Устройство (30) зажигания выполняет операцию замыкания элемента (60) переключения зажигания в интервал времени, в течение которого выдается сигнал Si зажигания. В интервал времени ввода сигнала Sc управления формой импульса разряда после прекращения ввода сигнала Si зажигания устройство (30) зажигания управляет электрическим током, протекающим через первичную обмотку (52), посредством ...

ДИАГНОСТИКА СОСТОЯНИЯ ЗАГРЯЗНЕНИЯ СВЕЧЕЙ СИСТЕМЫ РАДИОЧАСТОТНОГО ЗАЖИГАНИЯ

1. Устройство радиочастотного зажигания, содержащее: ! средства (5) управления, выполненные с возможностью генерирования сигнала (V1) управления зажиганием, ! цепь (2) питания, управляемую сигналом (V1) управления зажиганием, для подачи напряжения питания на выходной интерфейс (OUT) цепи питания на частоте, определяемой сигналом управления, ! по меньшей мере, один резонатор (1) генерирования плазмы, соединенный с выходным интерфейсом цепи питания и выполненный с возможностью генерирования искры между двумя электродами (10, 12) зажигания указанного резонатора во время подачи команды на зажигание; ! отличающееся тем, что содержит: ! средства (6) измерения электрического параметра, характеризующего изменение напряжения питания резонатора, и ! модуль (7) определения состояния загрязнения электродов в зависимости от измеренного электрического параметра и заранее определенного контрольного значения. ! 2. Устройство по п.1, отличающееся тем, что электрическим параметром является напряжение на контактах конденсатора (Сb) цепи питания, выполненного с возможностью зарядки от напряжения питания до подачи команды на зажигание. ! 3. Устройство по п.1 или 2, отличающееся тем, что цепь питания содержит выключатель (М), управляемый сигналом (V1) управления зажиганием, для подачи напряжения питания на выходной интерфейс на частоте, определяемой сигналом управления. ! 4. Устройство по п.1, отличающееся тем, что управляемая частота по существу равна резонансной частоте резонатора генерирования плазмы. ! 5. Устройство по п.1, отличающееся тем, что резонатор генерирования плазмы выполнен с возможностью реализации зажигания в следующих вариантах РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2010 100 824 (13) A (51) МПК F02P 23/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2010100824/06, 04.06.2008 (71) Заявитель(и): РЕНО С.А.С. (FR) Приоритет(ы): (30) Конвенционный приоритет: 12.06.2007 FR 0704190 (85) Дата ...

РАДИОЧАСТОТНОЕ УСТРОЙСТВО ГЕНЕРИРОВАНИЯ ПЛАЗМЫ

1. Радиочастотное устройство (A) генерирования плазмы, содержащее: ! генератор (5) напряжения и ! по меньшей мере один блок (9) зажигания, при этом указанный блок (9) зажигания содержит: ! свечу (4) зажигания, выполненную с возможностью генерирования искры между двумя электродами свечи, когда на свечу (4) подается напряжение; и ! выключатель (7), установленный между контактом питания свечи (4) и выходом генератора (5) напряжения, при этом выключатель (7) выполнен с возможностью электрического и селективного соединения выхода генератора (5) напряжения с указанным контактом питания свечи (4) при получении командного сигнала (V1), поданного на контакт управления указанного выключателя (7); ! причем устройство дополнительно содержит электронный блок (UC) управления, соединенный электрически с указанным контактом управления указанного выключателя (7) и выполненный с возможностью генерирования указанного командного сигнала, отличающееся тем, что электронный блок (UC) управления содержит средства (М) измерения значений, характеризующих изменение во времени выходного напряжения генератора (5) напряжения, при этом устройство содержит средства изменения напряжения и/или частоты электрического тока, подаваемого на указанный контакт питания свечи, в зависимости от значений, измеренных указанными средствами (М) измерения. ! 2. Радиочастотное устройство генерирования плазмы по п.1, отличающееся тем, что электронный блок (UC) управления содержит средства сравнения измеренных значений с теоретическими значениями, предварительно записанными в память устройства. ! 3. Радиочастотное устройство генерирования плазмы по п.1, отличающееся тем, что � РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2010 108 323 (13) A (51) МПК F02P 9/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2010108323/07, 30.07.2008 (71) Заявитель(и): РЕНО С.А.С. (FR) Приоритет(ы): (30) Конвенционный приоритет: 08.08.2007 FR 0705773 (87) ...

Zündungssteuerungsvorrichtung

ERKENNUNG VON ZÜNDKERZENSCHÄDEN BEI GASBETRIEBENEN KRAFTMASCHINEN

Es wird ein System zum Erkennen von Zündkerzenschäden bei einer Kraftmaschine bereitgestellt. Das System kann eine oder mehrere Sensorvorrichtungen, die an die Kraftmaschine gekoppelt sind und dafür eingerichtet sind, Kraftmaschinendaten zu messen, eine Steuerung in Kommunikation mit den Sensorvorrichtungen und eine Ausgabevorrichtung umfassen. Die Steuerung kann dafür eingerichtet sein, auf der Grundlage der Kraftmaschinendaten mindestens eine Zündaussetzerzahl, eine Transformator-Sekundärspannung und eine Auslasskanaltemperatur zu bestimmen, auf der Grundlage einer oder mehrerer Größen von Zündaussetzerzahl, Transformator-Sekundärspannung und Auslasskanaltemperatur einen Störungszustand zu identifizieren und in Reaktion auf den Störungszustand eine Abhilfemaßnahme durchzuführen. Die Ausgabevorrichtung kann dafür eingerichtet sein, eine Benachrichtigung entsprechend dem Störungszustand zu generieren.

Sensor für das Ermitteln des Zündungstromes und des Ionenstromes im Zündungssekundärstromkreis

Method for operating an ignition system and a corresponding ignition system

DIAGNOSIS OF the STATE Of OILING UP OF the SPARKING PLUGS Of an IGNITION SYSTEM RADIO FREQUENCY

DEVICE OF DETECTION Of STATE OF COMBUSTION FOR an ENGINE has COMBUSTIONINTERNE

IGNITION SYSTEM INCLUDING A MEASUREMENT DEVICE FOR PROVIDING MEASUREMENT SIGNALS TO A COMBUSTION ENGINE'S CONTROL SYSTEM

The present invention relates to an ignition system (T) for a combustion engine, the internal combustion engine comprising a control system, the ignition system (T) further comprising a power source (30), at least one ignition coil (10, 1 1, 12) having at least one primary coil (L2, L4, L6) and one secondary coil (L3, L5, L7) for a spark plug (13, 14, 15) and a measurement device (50) for at least one of the parameters spark current, ion current, ignition voltage and primary voltage, said measurement device (50) being adapted to provide measurement signals to said control system for regulating the ignition system (T), the ignition system (T) also comprising means for transforming up voltage and storing energy, and a plurality of switches (S1-S7), said control system being adapted to control said switches (S1-S7), by means of said measuring signal(s), for the supply of adaptive spark energy and/or to control the polarity of the spark.

METHOD OF DETERMINING CARBON FOULING OF INTERNAL COMBUSTION ENGINE

A method of determining the carbon fouling of a spark ignition internal combustion engine having spark plugs and mounted on a vehicle by detecting an ion current produced in a combustion chamber after ignition through the spark plugs and determining the carbon fouling of the spark plugs based on the detected ion current. The operating state of the internal combustion engine is detected, and when the ion current detected when the detected operation state is within an operation determination area set correspondingly to an operation area in which an intake tube pressure is near the atmospheric pressure when a specified rotational speed is set to an upper limit and a specified intake air tube pressure is set to a lower limit meets the specified requirements, the spark plugs are determined to be carbon-fouled.

METHOD AND APPARATUS FOR INSPECTING SPARK PLUG WHILE SPARK PLUG IS INSTALLED IN ENGINE

Method and apparatus for inspecting a spark plug as installed in an engine, for an abnormal size of a discharge gap and cracking of porcelain, based on a shape parameter value Sn ( = Vn/Tn) calculated from a voltage parameter value Vn which is an average of primary voltage V1 during a period of substantially inductive discharge, and a time parameter value Tn indicative of the period of the substantially inductive discharge. The inspection for the abnormal discharge gap size is effected with the engine held at rest, while the inspection for the porcelain cracking is effected with the engine controlled by a motor so as to increase air pressure within the cylinder bore, contrary to conventional system wherein the inspection is effected during operation of the engine by combustion of an air-fuel mixture.

Ignition device

An ignition device according to the present invention includes: an ignition plug, which includes a first electrode, a second electrode, and a dielectric body arranged between the electrodes; an AC power supply configured to generate an AC voltage to be applied between the electrodes; a thermal plasma detection portion configured to output a thermal plasma occurrence signal when thermal plasma has occurred between the electrodes; and an application time period determination portion configured to determine an application time period for the AC voltage during one cycle of the internal combustion engine in advance before the application, and when the thermal plasma occurrence signal is received while the AC voltage is being applied based on the application time period, change the application time period so as to shorten the application time period.

SYSTEM AND METHOD FOR MONITORING AN IGNITION SYSTEM

A system for monitoring and cleaning a spark plug is disclosed. In one example, rim firing of a spark plug is detected according to characteristics of a voltage of a primary coil of an ignition coil. The system may institute spark plug cleaning after rim firing of a spark plug is detected. 1. A spark plug monitoring system , comprising:an engine including an ignition coil with a primary coil; anda controller including executable instructions stored in non-transitory memory to integrate a voltage of the primary coil beginning a first predetermined time after the ignition coil begins to discharge to a second predetermined time after the ignition coil begins to discharge, and instructions to adjust operation of the engine responsive to the integration via the controller.2. The system of claim 1 , where adjusting operation of the engine includes leaning an air-fuel ratio of an engine cylinder and where the controller is electrically coupled to the ignition coil.3. The system of claim 1 , where adjusting operation of the engine includes increasing load claim 1 , advancing spark timing claim 1 , increasing engine speed claim 1 , adjusting cam timing.4. The system of claim 1 , where the adjusting operation of the engine includes increasing a charging time of an ignition coil claim 1 , increasing a total number of charging and discharging events of the ignition coil claim 1 , and decreasing exhaust gas recirculation flow.5. The system of claim 1 , where the integration is numerical integration or linear integration performed via analog circuitry.6. The system of claim 1 , further comprising comparing a value of the integration beginning at the first predetermined time to a value of an integration of a voltage of the primary coil from a different cylinder cycle.7. The system of claim 6 , further comprising adjusting operation of the engine in further response to the value of the integration beginning at the first predetermined time being greater than the value of the ...

Controller and control method for internal combustion engine

To provide a controller and a control method for an internal combustion engine capable of estimating a discharge plasma length accurately by easy method. Controller for internal combustion engine is provided with a secondary voltage detector that detects secondary voltage which is voltage generated by secondary coil, a secondary voltage minimum value calculator that calculates minimum value of secondary voltage during discharge period, and a discharge plasma length calculator that calculates length of the discharge plasma based on secondary voltage and minimum value of secondary voltage.

METHOD AND DEVICE FOR DETECTION OF IGNITION FAILURES IN AN INTERNAL COMBUSTION ENGINE CYLINDER

After the emission of a first ignition spark, a second spark is triggered, the initiation overvoltage (V2; V3) of this second spark is detected, this overvoltage is compared with a predetermined threshold voltage and the occurence or the non-occurence of a failure of ignition of the air/fuel mixture prior to this second spark is deduced, according to whether the overvoltage detected is greater or less than the predetermined threshold voltage. Application to the protection of a chamber containing an oxidation reduction catalyser for the exhaust gases of the engine.

Verfahren zur Regelung der Zündenergie

Verfahren zur Regelung der Zündenergie, wobei das Verfahren zur Ausführung mit einem Zündsystem (1) einer Brennkraftmaschine mit Fremdzündung vorgesehen ist, welches Zündsystem (1) eine Zündspule (3) mit einem Primärkreis (5) und einem Sekundärkreis (7) sowie eine im Sekundärkreis (7) an einem Brennraum der Brennkraftmaschine angeordnete Zündkerze (11) aufweist, wobei für ein aktuelles Arbeitsspiel (i + 1) der Brennkraftmaschine eine Stellvorgabe (EZS,i+1 = f(IZS,i+1, tZS,i+1)) in Abhängigkeit einer ermittelten Durchbruchspannung (UZ,i) je des vorhergehenden Arbeitsspiels (i) ermittelt und für die Regelung der Zündenergie (EZ) im aktuellen Arbeitsspiel bereitgestellt wird.

Verfahren und Anordnung zur Steuerung und/oder Diagnose einer Brennkraftmaschine

Verfahren zum Erfassen eines Einbruchs (a, b, d) der Winkelgeschwindigkeit einer Kurbelwelle einer Brennkraftmaschine unter Verwendung eines synchron mit der Kurbelwelle drehbaren Generators (P01), der eine von einer Drehstellung (T1T3) und Drehzahl (W, RPM) der Kurbelwelle abhängige Wechselspannung (V_L1) generiert, die von einer Steuerung (MC) abgetastet und zu deren Stromversorgung verwendet wird, dadurch gekennzeichnet, dass von der Steuerung (MC) der Betrag der Amplitude (V1) von Halbwellen (I, II, III) der Wechselspannung (V_L1) und eine Durchschnittsgeschwindigkeit (RPM) des Generators (P01) zwischen zwei Zeitpunkten (T1, T2) erfasst und der Geschwindigkeitseinbruch (a, b, d) der Kurbelwelle basierend auf einer Gegenüberstellung der Durchschnittsgeschwindigkeit (RPM) und des Betrags der Amplitude (V1) der Halbwellen (I, II, III) der Wechselspannung (V_L1) bestimmt wird.

STEUEREINHEIT UND STEUERVERFAHREN FÜR EINEN VERBRENNUNGSMOTOR

Um eine Steuereinheit und ein Steuerverfahren für einen Verbrennungsmotor bereitzustellen, die in der Lage sind einen Erfassungsfehler eines Kurbelwellenwinkels mit hoher Genauigkeit zu korrigieren. Steuereinheit (50) für Verbrennungsmotor (1) versehen mit einer Sekundärspannungserkennungseinheit (52), die Sekundärspannung (V2), eine Spannung die von der Sekundärspule (132) erzeugt wird, erfasst, eine Sekundärspannungs-Minimalwert-Berechnungseinheit (53), die den Minimalwert (V2min) der Sekundärspannung während der Entladungsperiode berechnet und eine Entladungsplasma-Längenberechnungseinheit (54), die die Länge (L) des Entladungsplasmas basierend auf der Sekundärspannung (V2) und dem Minimalwert (V2min) der Sekundärspannung berechnet.

Zündsystem und Verfahren zum Betreiben eines Zündsystems für eine Brennkraftmaschine

Es werden ein Verfahren zum Betreiben eines Zündsystems (1) für eine Brennkraftmaschine, umfassend einen ersten Spannungserzeuger und einen Bypass (7), vorgeschlagen. Der Bypass (7) kann beispielsweise einen Hochsetzsteller zum Aufrechterhalten eines mittels des ersten Spannungserzeugers (2) erzeugten Funkens umfassen. Erfindungsgemäß wird eine Drehzahl einer mit dem Zündsystem (1) verwendeten Brennkraftmaschine ermittelt (100) und im Ansprechen auf die Drehzahländerung die Arbeitsweise des Bypasses (7) verändert (400).

The ignition system and control for exogenous ignition of the internal combustion engine ignition system

DIAGNOSIS OF the STATE Of OILING UP OF the SPARKING PLUGS Of an IGNITION SYSTEM RADIO FREQUENCY

L'invention concerne un dispositif d'allumage radiofréquence, comprenant :- des moyens de commande (5) apte à générer un signal de commande d'allumage (V1),- un circuit d'alimentation (2), commandé par le signal de commande d'allumage (V1), pour appliquer une tension d'alimentation sur une interface de sortie (OUT) du circuit d'alimentation à la fréquence définie par le signal de commande,- au moins un résonateur de génération de plasma (1) connecté sur l'interface de sortie du circuit d'alimentation et apte à générer une étincelle entre deux électrodes d'allumage (10, 12) dudit résonateur lors d'une commande d'allumage ;ledit dispositif étant caractérisé en ce qu'il comprend :- des moyens de mesure (6) d'un paramètre électrique représentatif d'une variation de la tension d'alimentation du résonateur,- un module de détermination (7) d'un état d'encrassement des électrodes, en fonction du paramètre électrique mesuré et d'une valeur de référence prédéterminée. The invention relates to a radiofrequency ignition device, comprising: control means (5) capable of generating an ignition control signal (V1), a supply circuit (2), controlled by the signal of ignition control (V1), for applying a supply voltage to an output interface (OUT) of the supply circuit at the frequency defined by the control signal, - at least one plasma generation resonator (1) connected to the output interface of the supply circuit and capable of generating a spark between two ignition electrodes (10, 12) of said resonator during ignition control, said device being characterized in that it comprises measuring means (6) for an electrical parameter representative of a variation of the supply voltage of the resonator, a module for determining (7) a state of fouling of the electrodes, as a function of the parameter. measured electric and a preset reference value rminée.

AN IGNITION SYSTEM OF AN AIRCRAFT TURBOMACHINE

IGNITION COIL AND METHOD FOR OPERATING SAME

An ignition coil and a method for operating the same are disclosed. According to the present invention, in the method for operating an ignition coil, a secondary voltage pulse is generated by feeding a primary voltage pulse into a transformer of the ignition coil, and a primary current, a primary voltage, a secondary current and/or a secondary voltage are measured, wherein the course of the primary current, the primary voltage, the secondary voltage and/or the secondary current are monitored and, when malfunction is determined during subsequent primary voltage pulse, an error signal is generated which indicates that malfunction has occurred during the previous primary voltage pulse and classifies the malfunction. COPYRIGHT KIPO 2018 ...

IGNITION APPARATUS

An ignition apparatus includes a plasma device, a first circuit, a second circuit, and a control unit. The plasma device produces a plasma discharge in an air-fuel mixture before an arc discharge is produced. The first circuit causes an ignition plug to start the arc discharge. The second circuit energizes a primary coil in a direction opposite to the direction of the energization by the first circuit during the arc discharge, to maintain energization of the secondary coil in the same direction as the direction of the energization started by an operation of the first circuit, to cause continuation of the arc discharge. The control unit controls operations of the first circuit, the second circuit, and the plasma device.

Ignition device

An ignition device includes a spark plug, a measurement value detector, an electrical breakdown determiner, an AC voltage applying section, and a first changing section. The measurement value detector includes primary and secondary coils, and detects at least one measurement value among an ignition coil, a primary current, a primary voltage, a secondary current, and a secondary voltage. The electrical breakdown determiner determines whether a discharge has become an electrical breakdown state based on the measurement value. The AC voltage applying section applies an AC voltage of a first predetermined frequency that causes voltage resonance to the primary coil. The first changing section changes the frequency of the AC voltage to a second predetermined frequency that can maintain the electrical breakdown state and is lower in frequency than the first predetermined frequency when it is determined that the discharge has become the electrical breakdown state.

Method for operating an ignition system and a corresponding ignition system

An ignition system and a method for suppressing an ignition spark discharge at a spark gap at an unsuitable time are provided. The method includes a recognition of a spark breakaway and/or a failed ignition and, in response thereto, by producing a conductive path via an ignition spark at the spark gap at a suitable time.

Optimized generation of a radiofrequency ignition spark

A method for controlling a radio-frequency plasma generator including a supply circuit with a switch controlled by at least one control pulse train, for applying an intermediate voltage at a control frequency on an output to which is connected a resonator for generating a spark between two electrodes when a high voltage level is applied to the output. The method receives first and second measurement signals respectively representative of the operation of a combustion engine and of the type of spark generated; and real-time adjusts, based on the received measurement signals, at least one parameter selected from at least the intermediate voltage level, the control frequency, and the duration of the control train, to promote branching of the spark generated.

Ignition apparatus for internal combustion engines

An ignition apparatus for an internal combustion engine provided with an ignition coil and a spark plug. An ECU enables operation of a plurality of continuous discharges in the spark plug and also detects a flow speed of a combustible air/fuel mixture. In a first discharge, a supply of a primary current terminates the first discharge, with energy remaining in the ignition coil, from an initiation of the ignition to an initiation of the spark plug, when the detected flow speed exceeds a predetermined first threshold. Thereafter, a second discharge is performed by shutting off the primary current.

IGNITION CONTROL OF SPARK IGNITED RECIPROCATING COMBUSTION ENGINE

Measuring device for the electrically decoupled functional checking of working systems

Measurement arrangement for electrically decoupled functional testing of systems in operation The arrangement has a current carrying conductor (2) directly mechanically coupled to a mechanical-electrical transducer (8) via an essentially incompressible medium. The transducer detects vibrations caused by the conductor and feeds the signal to an evaluation unit via an amplifier. The mechanical-electrical transducer is in the form of a strain gauge system or a piezoceramic element. The piezoceramic element can be a knock detector and the current carrying conductor can be the ignition coil of an internal combustion engine.

Diagnosis of fouling condition of sparkplugs in radiofrequency ignition system

The invention relates to a radiofrequency ignition device that comprises: a control means (5) capable of generating an ignition control signal (V1); a supply circuit (2) controlled by the ignition control signal (V1) for applying a supply voltage on an output interface (OUT) of the supply circuit at the frequency defined by the control signal; at least one plasma generation resonator (1) connectedon the output interface of the supply circuit and capable of generating a spark between two ignition electrodes (10, 12) of the resonator upon an ignition control; wherein the device comprises: a means (6) for measuring an electric parameter representative of a variation in the supply voltage of the resonator; a module (7) for determining the fouling condition of the electrodes based on the measured electric parameter and on a predetermined reference value.

AN IGNITION SYSTEM OF AN AIRCRAFT TURBOMACHINE

L'invention concerne un système d'allumage d'une turbomachine, ledit système comprenant une bougie d'allumage ayant une borne dite d'excitation et une borne dite de retour, un dispositif excitateur de la bougie connectée à la borne d'excitation de la bougie, la borne de retour étant, un utilisation, connectée à une structure de la turbomachine formant référence équipotentielle, le dispositif excitateur étant, en utilisation, connecté à une ligne de commande et à une source d'alimentation électrique fournissant un signal d'excitation à la bougie à la réception d'un signal d'excitation sur la ligne de commande, le système d'allumage comprenant un dispositif de contrôle comprenant un capteur de courant, un capteur de tension, un premier comparateur recevant en entrée un signal généré par le capteur de tension, un second comparateur recevant en entrée un signal généré par le capteur de courant, et un microcontrôleur recevant la sortie des deux comparateurs, le premier comparateur étant configuré pour comparer la valeur de l'amplitude du signal généré par le capteur de tension à une première valeur de référence et le second comparateur étant configuré pour comparer la valeur du signal généré par le capteur de courant à une seconde valeur de référence, le microcontrôleur mettant en œuvre une porte logique ET dont la sortie est un signal indicateur d'un dysfonctionnement du système d'allumage si la valeur de l'amplitude du signal généré par le capteur de courant est inférieure à la seconde valeur de référence alors que la valeur de l'amplitude du signal généré par le capteur de tension est supérieure à la première valeur de référence. The invention relates to a system for igniting a turbomachine, said system comprising a spark plug having a so-called excitation terminal and a so-called return terminal, an excitation device of the spark plug connected to the excitation terminal of the spark plug, the return ...

método para controlar um sistema de ignição corona de um motor de combustão interna de operação cíclica

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINES

This control device (30) for an internal combustion engine (2) comprises a detection means, a control parameter setting means, and a control input determination means. The internal combustion engine (2) has actuators (18, 20) for which the relationship between the control input therefor and the combustion state of the internal combustion engine (2) is influenced by the flow rate of a gas in a cylinder. The detection means supplies current to a spark plug (18) of internal combustion engine (2) from when an intake valve (14) opens until fuel is injected and detects the discharge voltage generated by supplying the current to the spark plug (18). The control parameter setting means sets control parameters according to the detected discharge voltage. The control input determination means determines the control input for the actuators (18, 20) using the control parameters.

A misfire detector device for use in an internal combustion engine

Verfahren zum Betreiben eines Zündsystems für einen fremdzündbaren Verbrennungsmotor eines Kraftfahrzeugs und Zündsystem

Die Erfindung betrifft ein Verfahren zum Betreiben eines Zündsystems für einen fremdzündbaren Verbrennungsmotor eines Kraftfahrzeugs, mit einem Zündtransformator (10) mit einer Primärseite (12) und einer Sekundärseite (14), wobei an der Primärseite (12) eine Bordnetzspannung (V) des Kraftfahrzeugs anliegt, mit einem Zündsteuergerät (16), mittels welchem ein Primärstrom (i_prim) durch die Primärseite (12) des Zündtransformators (10) steuerbar ist, mit einer Stromerfassungseinrichtung (20), welche mit dem Zündsteuergerät (16) gekoppelt ist und mittels welcher der Primärstrom (i_prim) und ein Sekundärstrom (i_sek) durch die Sekundärseite (14) erfassbar und an das Zündsteuergerät (16) übermittelbar sind, und mit einer Zündkerze (22), welche zum Erzeugen von Zündfunken (24) mit der Sekundärseite (14) des Zündtransformators (10) gekoppelt ist, wobei das Verfahren folgende Schritte umfasst: a) Aufbauen des Primärstroms (i_prim) an der Primärseite (12) des ...

DEVICE OF GENERATION OF PLASMA RADIO FREQUENCY

Dispositif de génération de plasma radiofréquence comprenant : - un générateur de tension (5) ; et - au moins un ensemble d'allumage (9) comportant : - une bougie d'allumage (4) ; et - un interrupteur (7) disposé entre une borne d'alimentation de bougie (4) et une sortie du générateur (5) adapté pour relier électriquement la sortie du générateur de tension (5) à ladite bougie (4) à réception d'un signal de commande (V1) ; le dispositif comportant une unité électronique de commande (UC) générant ledit signal de commande (V1). L'unité électronique de commande (UC) comporte des moyens de mesure (M) de valeurs représentatives de l'évolution dans le temps de la tension de sortie du générateur (5), et le dispositif (A) comporte des moyens de variation de la tension et/ou de la fréquence du courant électrique appliqué à ladite borne d'alimentation de la bougie en fonction de valeurs mesurées.

Method for operating an ignition device for an internal combustion engine

An ignition device for an internal combustion engine has an ignition coil disposed as a transformer, a spark plug connected to the secondary winding of the ignition coil, an actuatable switching element connected in series with the primary winding of the ignition coil, and a control unit connected to the primary winding and to the control input of the switching element. After charging the ignition coil, building up an ignition spark through non-conductive switching of the switching element, and after renewed conductive switching of the switching element for operating the ignition coil in transformer operation, the supply voltage of the control unit is detected and if a pre-determined value, representing the presence of a surface gap, is exceeded, the switching element is once more switched non-conductive.

Spark plug fouling detection for ignition system

Methods and systems are provided for determining a type of spark plug fouling. In one example, a method may include differentiating spark plug fouling due to soot accumulation from spark plug fouling due to fuel additive accumulation based on a current on a control wire of the spark plug following application of a dwell command. Further, exhaust oxygen sensor degradation and/or exhaust catalyst degradation may be determined based on switching frequencies of one or more exhaust oxygen sensors and the type of spark plug fouling.

Ignition system

An ignition system for an internal combustion engine includes an ignition transformer with two primary windings. The ignition system is designed to generate, for a given ignition event, a unipolar current through the secondary winding by way of a control circuit that is configured to first energize and deenergize the first primary winding to establish a first electrical arc across the spark-plug electrodes and, when the current in the secondary winding reaches, or drops below, a current threshold, repeatedly energizes and deenergizes the second primary winding to establish a plurality of second current pulses across the electrodes in order to maintain the burn phase.

Ignition device for internal combustion engine

An ignition device includes an ignition coil, an ignition plug and ignition control unit. The ignition control unit includes a secondary current adjusting unit that adjusts, in each cycle, an amount of the secondary current after initiating the discharge, a discharge extension detecting unit that detects an amount of extension of the discharge, and a short determination unit that determines whether a discharge-short has occurred. The ignition control unit controls the secondary current control unit such that a first step and a second step are repeatedly executed. The first step decreases the secondary current while keeping the secondary current higher than a predetermined lower current limit, when the extension amount detected by the discharge extension detecting unit is a predetermined extension amount or more. The second step increases the secondary current when the short determination unit determines that a discharge-short has occurred.

Ignition control apparatus

An ignition control apparatus applied to an internal combustion engine including a spark plug includes an in-cylinder pressure acquisition section, a frequency signal transmitting section which transmits a frequency signal having a predetermined frequency to a switching element, and a weak discharge generating section which causes the frequency signal to be transmitted during an intake stroke and controls the frequency signal such that a weak discharge is generated at the spark plug a plurality of times. The weak discharge generating section controls the frequency signal so as to cause a duty ratio of the switching element to be changed in accordance with the in-cylinder pressure, such that the frequency of generating weak discharges during a time period in which the frequency signal is transmitted becomes higher than a predetermined frequency.

Gas Fuel Engine Spark Plug Failure Detection

A system for detecting spark plug failures in an engine is provided. The system may include one or more sensor devices coupled to the engine and configured to measure engine data, a controller in communication with the sensor devices, and an output device. The controller may be configured to determine at least a misfire count, a secondary transformer voltage, and an exhaust port temperature based on the engine data, identify a fault condition based on one or more of the misfire count, the secondary transformer voltage, and the exhaust port temperature, and perform a corrective action responsive to the fault condition. The output device may be configured to generate a notification corresponding to the fault condition. 1. A system for detecting spark plug failures in an engine , comprising:one or more sensor devices coupled to the engine and configured to measure engine data;a controller in communication with the sensor devices and configured to determine at least a misfire count, a secondary transformer voltage, and an exhaust port temperature based on the engine data, identify a fault condition based on one or more of the misfire count, the secondary transformer voltage, and the exhaust port temperature, and perform a corrective action responsive to the fault condition; andan output device configured to generate a notification corresponding to the fault condition.2. The system of claim 1 , wherein the sensor devices are configured to measure engine data corresponding to one or more of engine speed claim 1 , engine oil temperature claim 1 , turbine inlet temperature claim 1 , turbine exhaust temperature claim 1 , the misfire count claim 1 , the secondary transformer voltage claim 1 , the exhaust port temperature claim 1 , and in-cylinder pressure.3. The system of claim 1 , wherein the controller is configured to determine the misfire count claim 1 , the secondary transformer voltage claim 1 , and the exhaust port temperature once one or more data trap conditions have ...

GAS ENGINE IGNITION SYSTEM FOR EXTENDING LIFE AND LEAN LIMIT

An ignition device and strategies are provided for extending spark plug life and air-fuel mixture lean limits in natural gas engines while maintaining or improving the engine thermal efficiency. The ignition device may include a plug body extending between a terminal end and an electrode end, a plurality of electrode pairs radially disposed on the electrode end each having an inner electrode and an outer electrode and an insulating body electrically isolating each of the electrode pairs from one another and each of the inner electrodes from the outer electrodes. 1. An ignition device , comprising:a plug body extending between a terminal end and an electrode end;a plurality of electrode pairs radially disposed on the electrode end each having an inner electrode and an outer electrode; andan insulating body electrically isolating each of the electrode pairs from one another and each of the inner electrodes from the outer electrodes.2. The ignition device of claim 1 , further comprising a plurality of orifices radially disposed on the electrode end.3. The ignition device of claim 2 , wherein each orifice is radially disposed between the inner electrode and the corresponding outer electrode of one of the electrode pairs and configured to supply a gas therethrough.4. The ignition device of claim 2 , wherein the electrode end includes four orifices and four corresponding electrode pairs claim 2 , the inner electrode of each electrode pair being radially disposed along a first radius of the electrode end and the outer electrode of each electrode pair being radially disposed along a second radius of the electrode end claim 2 , the first radius being less than the second radius claim 2 , the orifices being radially disposed between the inner electrodes and the outer electrodes.5. The ignition device of claim 1 , wherein each of the electrode pairs at least partially extends through the electrode end and the plug body.6. The ignition device of claim 1 , wherein each electrode ...

SPARK PLUG CONDITION MONITORING

A method for monitoring an ignition system including a spark plug of an internal combustion engine is disclosed. The method comprises determining an operation value associated with an electrical parameter indicative of an operation of the ignition system during actuation of the spark plug. The method further comprises determining at least one parameter indicative of a current engine operation condition of the internal combustion engine, and determining a current spark plug state of the spark plug based on the at least one engine parameter and the operation value associated with the electrical parameter of the ignition system. 1. A method for monitoring an ignition system including a spark plug of an internal combustion engine , the method comprising:determining an operation value associated with an electrical parameter indicative of an operation of the ignition system during actuation of the spark plug;determining at least one parameter indicative of a current engine operation condition of the internal combustion engine; anddetermining a current spark plug state of the spark plug based on the at least one engine parameter and the operation value associated with the electrical parameter of the ignition system.2. The method of claim 1 , wherein the step of determining the current spark plug state uses a map providing a plurality of empirically determined spark plug states claim 1 , each spark plug state depending on a specific combination of the at least one determined engine operation condition and the determined operation value associated with the electrical parameter of the spark plug.3. The method of claim 1 , wherein the operation value is an actual risetime duration of a primary current of an ignition coil of the ignition system.4. The method of claim 1 , further comprising:performing a preset spark plug test procedure for testing operation of the spark plug.5. The method of claim 4 , wherein the preset spark plug test procedure is performed when misfire occurs ...

Igniter and vehicle

An igniter includes: a switch connected to an ignition coil; and a controller to control the switch according to an ignition signal. The controller includes an ignition signal input; a determination stage comparing a voltage of the input with a reference voltage to generate a determination signal; a drive stage controlling the switch's ON/OFF according to the determination signal; a comparison circuit receiving a first supply voltage, comparing a current on the switch with a reference current, and generating a feedback-signal having a level based on the comparison; an output transistor having one end grounded and the other end connected to an output terminal of an ignition check signal and having a threshold voltage higher than the first supply voltage; and a level-shifter receiving a second supply voltage higher than the threshold voltage, level-shifting the feedback-signal, and outputting the level-shifted feedback-signal to a control terminal of the output transistor.

IGNITION SYSTEM OF AN AIRCRAFT TURBINE ENGINE

A turbine engine ignition system comprising a spark plug having excitation and return terminals, and a spark plug exciter connected to the excitation terminal. The return terminal is connected to an equipotential reference-forming structure, the exciter device is connected to a command line for a signal to supply an excitation signal to the spark plug. The ignition system comprises a control device comprising current and voltage sensors, a first voltage comparator, a second current comparator, and a microcontroller receiving output from the two comparators. The first comparator compares the voltage sensor signal to a first reference value and the second comparator compares the current sensor signal to a second reference value. The microcontroller generates a signal indicating a malfunction of the ignition system if the current sensor signal is lower than the second reference value while the voltage sensor signal is higher than the first reference value. 1. An ignition system of a turbine engine , comprising:an ignition spark plug having an excitation terminal and a return terminal, the return terminal being, in use, connected to an equipotential reference-forming structure of the turbine engine,', 'the exciter device being, in use, connected to a command line and to an electrical power source supplying an excitation signal to the spark plug on reception of an excitation signal over the command line,, 'a spark plug exciter device connected to the excitation terminal of the spark plug,'} the first comparator being configured to compare a value of an amplitude of the signal generated by the voltage sensor to a first reference value and', 'the second comparator being configured to compare a value of the signal generated by the current sensor to a second reference value,', 'the microcontroller configured to implement an AND logic gate whose output is a signal indicative of a malfunction of the ignition system if the value of an amplitude of the signal generated by the ...

METHOD FOR OPERATING AN IGNITION SYSTEM AND A CORRESPONDING IGNITION SYSTEM

An ignition system and a method for suppressing an ignition spark discharge at a spark gap at an unsuitable time are provided. The method includes a recognition of a spark breakaway and/or a failed ignition and, in response thereto, by producing a conductive path via an ignition spark at the spark gap at a suitable time. 113-. (canceled)14. A method for operating an ignition system for an internal combustion engine , the ignition system including a voltage generator and a spark gap for producing an ignition spark , the method comprising:recognizing at least one of a spark breakaway and a failed ignition; andproducing, in response thereto, a conductive path via an ignition spark at the spark gap in a suitable working stroke of the internal combustion engine or at a suitable ignition time.15. The method of claim 14 , wherein the suitable working stroke includes a working stroke claim 14 , wherein at least one of the following is satisfied:(i) in which at least one of a combustion and an ejection of fluid from a combustion chamber containing the spark gap occurs; and(ii) in which at least one of an intake and a compression occurs, and in which the residual energy stored in at least one electrical energy storage device of the ignition system is below a specified threshold value.16. The method of claim 14 , wherein the production of the conductive path occurs via the ignition spark at the spark gap following each ignition time of an operating state under consideration claim 14 , or of all operating states.17. The method of claim 14 , wherein the recognizing and producing tasks include the following:ascertaining a secondary-side current,ascertaining whether an exceeding condition is met by ascertaining whether a change in the secondary-side current exceeds a specified first threshold value,ascertaining whether an ignition condition is met by ascertaining whether no ignitable mixture is present in a combustion chamber of an internal combustion engine, andproducing a ...

Spark plug fouling detection for ignition system

Methods and systems are provided for determining a type of spark plug fouling. In one example, a method may include differentiating spark plug fouling due to soot accumulation from spark plug fouling due to fuel additive accumulation based on a current on a control wire of the spark plug following application of a dwell command. Further, exhaust oxygen sensor degradation and/or exhaust catalyst degradation may be determined based on switching frequencies of one or more exhaust oxygen sensors and the type of spark plug fouling.

SYSTEM FOR MONITORING A PRECHAMBER OF AN ENGINE

The present disclosure includes systems and methods for monitoring a prechamber of an engine. In one embodiment, a system includes a combustion engine having a combustion chamber and a prechamber, where the prechamber is configured to direct a flame toward the combustion chamber, a fuel supply valve configured to adjust a flow of a fuel toward the prechamber, a prechamber valve configured to receive the fuel into the prechamber, a knock sensor coupled to the combustion engine, and a controller. The controller is configured to control operations of the combustion engine, to receive a signal from the knock sensor, to determine a combustion parameter based at least on the signal, to determine a condition of one or both of the prechamber and the prechamber valve based at least on the combustion parameter, and to adjust the fuel supply valve based at least on the condition. 1. A system , comprising:a combustion engine comprising a combustion chamber and a prechamber, wherein the prechamber is configured to direct a flame toward the combustion chamber;a fuel supply valve configured to adjust a flow of a fuel toward the prechamber;a prechamber valve configured to receive the fuel into the prechamber;a knock sensor coupled to the combustion engine; anda controller communicatively coupled to the combustion engine, the prechamber, and the knock sensor, wherein the controller is configured to control operations of the combustion engine, to receive a signal from the knock sensor, to determine a combustion parameter based at least on the signal, to determine a condition of one or both of the prechamber and the prechamber valve based at least on the combustion parameter, and to adjust the fuel supply valve based at least on the condition of the prechamber, the prechamber valve, or both.2. The system of claim 1 , wherein the combustion parameter comprises a peak firing pressure in a cylinder of the combustion engine.3. The system of claim 1 , wherein the combustion parameter ...

Ignition device for internal combustion engine

An ignition device for an internal combustion engine includes an ignition coil, a first switch, a secondary current adjuster, and controller. The ignition coil includes a primary coil, a core, and a secondary coil. The first switch switches an energized state of the primary coil between an ON state and an OFF state. The secondary current adjuster adjusts a current value of a secondary current flowing through the secondary coil. The controller controls the secondary current adjuster so that a current value of the secondary current in at least a part of a charging period of the ignition plug, which is a period from when the energized state of the primary coil is switched from the ON state to the OFF state by the first switch to when dielectric breakdown occurs in the ignition plug, becomes smaller than a peak value of the secondary current after the dielectric breakdown occurs.

METHOD FOR CONTROLLING A CORONA IGNITION SYSTEM OF A CYCLICALLY OPERATING INTERNAL COMBUSTION ENGINE

A method for controlling a corona ignition system in which a corona discharge is produced at an ignition electrode by exciting a resonating circuit with an AC voltage produced by a high-frequency generator. The AC voltage is adjusted to a target value depending on an operating state of the engine. Combustion onset is determined by evaluating an electrical variable of the resonating circuit and the target value of the AC voltage is reduced by a predefined value following a predefined number of engine cycles or a predefined operating period. The determined combustion onset is evaluated in one or more engine cycles. The target value for the momentary engine operating state is then increased if, by evaluation of the combustion onset, it is found that a predefined requirement is no longer met. Otherwise, the reduced target value is stored as a new target value for the momentary engine operating state. 1. A method for controlling a corona ignition system of a cyclically operating internal combustion engine , the method comprising:producing a corona discharge at an ignition electrode by exciting a resonating circuit with an AC voltage produced by a high-frequency generator, said resonating circuit comprising the ignition electrode;adjusting the AC voltage to a target value that is set as a function of an operating state of the engine;detecting a combustion onset by evaluating an electrical variable of the resonating circuit; andevaluating the combustion onset from one or a number of engine cycles, wherein the target value of the AC voltage is increased if, by evaluation of the combustion onset, it is determined that a predefined requirement is no longer met.2. The method according to claim 1 , wherein:the target value of the AC voltage is reduced by a predefined value whenever a predefined number of engine cycles or a predefined operating period has passed;the combustion onset determined with the reduced target value of the AC voltage is evaluated for one or more engine ...

Ignition apparatus

An ignition apparatus for internal combustion engines is provided. The ignition apparatus is equipped with an ECU. The ECU monitors a path length of a discharge of a spark for a period of time in which a second circuit delivers or inputs energy in the form of a threshold value determination. When the path length has become too short, the ECU determines that ignition is expected to be delayed and then selects a special mode to control the delay of the ignition. The ECU increase a target value of an energy input amount. This enables the delay of ignition resulting from a short extension of the path length to be minimized. The ignition apparatus equipped with the second circuit to continue the discharge of sparks is, thus, capable of reducing a variation in ignition without the need for uniformly increasing the energy input amount.

Ignition system

An ignition system including: a first control unit configured to generate a high voltage that is to be supplied to a spark plug at a secondary winding of an ignition coil by applying and then cutting off a primary current to a primary winding of the ignition coil; a second control unit configured to cut off electric power supplied from the secondary winding to the spark plug by energizing the primary winding after the first control unit cuts off the primary current; a re-energizing current measuring unit configured to measure a re-energizing current energizing the primary winding by the second control unit; and an energizing period determining unit configured to determine an energizing period during which the primary current is applied to the primary winding by the first control unit, corresponding to the re-energizing current measured by the re-energizing current measuring unit.

IGNITION CONTROL DEVICE

In an ignition control device for controlling operation of an ignition apparatus, an ignition section has first and second electrodes disposed in a combustion chamber of an internal combustion engine. A voltage application between the first and second electrodes enables a discharge to be generated between the first and second electrodes for igniting a gas mixture in the combustion chamber. A voltage application section performs at least one application of a determination voltage between the first and second electrodes. An occurrence ratio acquisition section acquires a discharge occurrence ratio at the ignition section for the at least one application of the determination voltage. A comparison section compares the discharge occurrence ratio acquired by the occurrence ratio acquisition section with a predetermined determination threshold to thereby determine a degree of wear of at least one of the first and second electrodes. 1. An ignition control device for controlling operation of an ignition apparatus , the ignition control device comprising:an ignition section that has first and second electrodes disposed in a combustion chamber of an internal combustion engine, a voltage application between the first and second electrodes enabling a discharge to be generated between the first and second electrodes for igniting a gas mixture in the combustion chamber;a voltage application section that performs at least one application of a determination voltage between the first and second electrodes;an occurrence ratio acquisition section that acquires a discharge occurrence ratio at the ignition section for the at least one application of the determination voltage; anda comparison section that compares the discharge occurrence ratio acquired by the occurrence ratio acquisition section with a predetermined determination threshold to thereby determine a degree of wear of at least one of the first and second electrodes.2. The ignition control device according to claim 1 , wherein ...

Ignition system and method for checking electrodes of a spark plug of an internal combustion engine

A method for checking electrodes of a spark gap of an ignition system for a combustion chamber of an internal combustion engine with an externally provided ignition includes generating a spark at the spark gap in an operating state without ignition of an ignitable mixture in the combustion chamber; ascertaining a parameter or characteristic function representing the spark current, the spark voltage, and/or the spark duration; comparing the parameter or the characteristic function to a reference; adapting an energy for a voltage buildup for a further spark generation for the mixture ignition and/or for maintaining an ignition spark for the mixture ignition, in particular for a future ignition process, as a function of a difference between the parameter or the characteristic function and the reference.

CONTROLLER AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE

To provide a controller and a control method for an internal combustion engine capable of estimating a discharge plasma length accurately by easy method. Controller for internal combustion engine is provided with a secondary voltage detector that detects secondary voltage which is voltage generated by secondary coil, a secondary voltage minimum value calculator that calculates minimum value of secondary voltage during discharge period, and a discharge plasma length calculator that calculates length of the discharge plasma based on secondary voltage and minimum value of secondary voltage. 1. A controller for an internal combustion engine that is provided with an ignition plug which has a plug gap disposed in a combustion chamber , and an ignition coil which has a primary coil to which power is supplied from a direct current power source and a secondary coil which has more winding number than the primary coil and generates high voltage supplied to the ignition plug , the controller for the internal combustion engine comprising:an ignition coil controller that shuts down after connecting electrically the primary coil and the direct current power source for generating high voltage in the secondary coil and generating spark discharge in the plug gap;a secondary voltage detector that detects a secondary voltage which is a voltage generated by the secondary coil;a secondary voltage minimum value calculator that calculates a minimum value of the secondary voltage during a discharge period based on the detected secondary voltage; anda discharge plasma length calculator that calculates a length of the discharge plasma based on the secondary voltage and the minimum value of the secondary voltage.22222. The controller for the internal combustion engine according to claim 1 , wherein by setting the length of the discharge plasma to L claim 1 , setting the secondary voltage to V claim 1 , setting the minimum value of the secondary voltage to Vmin claim 1 , setting a preliminarily ...

SYSTEM AND METHOD FOR MONITORING AN IGNITION SYSTEM

A system for monitoring and cleaning a spark plug is disclosed. In one example, rim firing of a spark plug is detected according to characteristics of a voltage of a primary coil of an ignition coil. The system may institute spark plug cleaning after rim firing of a spark plug is detected. 1. A spark plug monitoring system , comprising:an engine including an ignition coil with a primary coil; anda controller including executable instructions stored in non-transitory memory that when executed enable the controller to integrate a voltage of the primary coil beginning a first predetermined time after the ignition coil begins to discharge to a second predetermined time after the ignition coil begins to discharge, and instructions to adjust operation of the engine responsive to the integration via the controller.2. The system of claim 1 , where adjusting operation of the engine includes leaning an air-fuel ratio of an engine cylinder and where the controller is electrically coupled to the ignition coil.3. The system of claim 1 , where adjusting operation of the engine includes increasing load claim 1 , advancing spark timing claim 1 , increasing engine speed claim 1 , and adjusting cam timing.4. The system of claim 1 , where adjusting operation of the engine includes increasing a charging time of an ignition coil claim 1 , increasing a total number of charging and discharging events of the ignition coil claim 1 , and decreasing exhaust gas recirculation flow.5. The system of claim 1 , where the integration is a numerical integration or a linear integration performed via analog circuitry.6. The system of claim 1 , further comprising comparing a value of the integration beginning at the first predetermined time to a value of an integration of a voltage of the primary coil from a different cylinder cycle.7. The system of claim 6 , further comprising adjusting operation of the engine in further response to the value of the integration beginning at the first predetermined ...

Control apparatus for internal combustion engine (as amended)

A control apparatus for an internal combustion engine according to the present invention includes a spark plug ( 30 ) for igniting an air-fuel mixture in a cylinder, and is configured to be capable of measuring a discharge voltage of the spark plug ( 30 ). The control apparatus calculates a turbulence intensity index value that indicates the turbulence intensity of in-cylinder gas based on a predetermined frequency component extracted from a discharge voltage during at least a part of a discharge duration leading up to ignition and, in accordance with the turbulence intensity index value, adjusts the ignition energy that is supplied to the spark plug ( 30 ) during a combustion duration in a cycle in which the turbulence intensity index value is calculated.

Self-diagnosis method for ignition coil, electronic control unit for performing the self-diagnosis, and self-diagnostic signal generator for the self-diagnosis

A self-diagnosis method for an ignition coil includes receiving and confirming a current flag (C/F) signal through monitoring of primary current of an ignition coil; monitoring secondary current of the ignition coil upon receiving the C/F signal and confirming whether a fault flag (F/F) signal for determining whether misfire of the ignition coil occurs is input; and determining whether an abnormal signal of the ignition coil is generated based on the result of confirming the C/F signal and the F/F signal respectively.

Current Profile Optimization

The subject matter of this specification can be embodied in, among other things, a method that includes receiving a collection of measurements of electric current amplitude in a primary winding of an engine ignition system having the primary winding and a spark plug, identifying an ignition start time, identifying an inflection point based on the plurality of measurements, determining an inflection point time representative of a time at which the identified inflection point occurred, determining a spark start time based on an amount of time between the ignition start time and the inflection point time, and providing a signal indicative of the spark start time. 1. A method comprising:receiving a plurality of measurements of electric current amplitude in a primary winding of an engine ignition system comprising the primary winding and a spark plug;identifying an ignition start time;identifying an inflection point based on the plurality of measurements;determining an inflection point time representative of a time at which the identified inflection point occurred;determining a spark start time based on an amount of time between the ignition start time and the inflection point time; andproviding a signal indicative of the spark start time.2. The method of claim 1 , further comprising sensing claim 1 , by an electric current sensor claim 1 , the plurality of measurements.3. The method of claim 1 , further comprising:determining a spark plug breakdown voltage based on the spark start time; and,providing a signal indicative of the spark plug breakdown voltage.4. The method of claim 1 , further comprising:providing a first amount of energy to the primary winding, wherein the ignition start time corresponds to the start of providing the first amount of energy;determining a second amount of energy based on the spark start time that is different from the first amount of energy;providing the second amount of energy to the primary winding; andsparking the spark plug based on the ...

Ignition System Including a Measurement Device for Providing Measurement Signals to a Combustion Engine's Control System

The present invention relates to an ignition system (T) for a combustion engine, the internal combustion engine comprising a control system, the ignition system (T) further comprising a power source ( 30 ), at least one ignition coil ( 10, 1 1, 12 ) having at least one primary coil (L 2, L 4, L 6 ) and one secondary coil (L 3, L 5, L 7 ) for a spark plug ( 13, 14, 15 ) and a measurement device ( 50 ) for at least one of the parameters spark current, ion current, ignition voltage and primary voltage, said measurement device ( 50 ) being adapted to provide measurement signals to said control system for regulating the ignition system (T), the ignition system (T) also comprising means for transforming up voltage and storing energy, and a plurality of switches (S 1 -S 7 ), said control system being adapted to control said switches (S 1 -S 7 ), by means of said measuring signal(s), for the supply of adaptive spark energy and/or to control the polarity of the spark.

Detection system for determining spark voltage

A detection system for determining spark voltage of a spark plug in a capacitive discharge ignition system is disclosed. The detection system may have a sensor circuit configured to detect occurrence of a spark by measuring a voltage on a low side of a primary coil. The detection system may also have an electronic control unit connected to the sensor circuit. The electronic control unit may be configured to receive a signal from the sensor circuit indicating that the voltage exceeded a threshold. The electronic control unit may be further configured to determine a spark time based on the signal, and determine a spark voltage based on the spark time.

Discharge state detecting apparatus of internal combustion engine

Even when detecting the primary voltage of the primary coil side, without detecting the secondary voltage of the secondary coil side of high voltage, it is desired to provide a discharge state detecting apparatus of an internal combustion engine which can detect a spark discharge state with good accuracy, by reducing influences of the discharge current and the resistance component of the discharge path of the secondary coil side, which are generated in the primary voltage. A discharge state detecting apparatus of an internal combustion engine performs correction which reduces a signal component generated by the secondary current in the ignition coil from the primary voltage detected by the primary voltage detector, based on the detected secondary current, and outputs a primary voltage after correction; and determines a spark discharge state based on the primary voltage after correction.

IGNITION SYSTEM AND METHOD FOR OPERATING AN IGNITION SYSTEM

An ignition system and a method for operating an ignition system for an internal combustion engine are provided, including a primary voltage generator and a boost converter for generating an ignition spark. An ascertainment of a voltage requirement for the ignition spark is followed by a modification of a switch-on time of the boost converter relative to a switch-off time of the primary voltage generator. 116-. (canceled)17. A method for adjusting a high voltage supply for an ignition spark in an ignition system to be generated with a primary voltage generator , the ignition system including the primary voltage generator and a boost converter , for an internal combustion engine , the method comprising:ascertaining a voltage requirement for an ignition sparkover to be generated; andmodifying, in response to the voltage requirement, a switch-on time of the boost converter relative to a switch-off time of the primary voltage generator.18. The method of claim 17 , wherein the ascertaining of the voltage requirement includes performing at least one of: (i) measuring an output voltage present across the spark gap or a corresponding measured voltage claim 17 , and (ii) receiving a signal from an electronic control unit.19. The method of claim 17 , wherein the ascertaining of the voltage requirement includes comparing a measured electrical parameter claim 17 , in particular claim 17 , an output voltage present across the spark gap or a measuring voltage or a signal received by an electronic control unit claim 17 , with an assigned reference.20. The method of claim 19 , further comprising:classifying the result of the comparing; andmodifying a switch-on time of the boost converter as a function of a parameter assigned to the class.21. The method of claim 20 , wherein at least one of the following is satisfied: (i) the modifying of the switch-on time in response to a reduced voltage requirement results in a switching-on of the boost converter at a later point in time claim 20 ...

METHOD OF TESTING A SPARK PLUG, AND A TESTING STATION THEREFOR

A method of testing a spark plug includes exciting the spark plug with a constant current from a DC power supply. A voltage difference across a gap of the spark plug is measured with a voltage measuring device. A status of an element of the spark plug is determined from the measured voltage difference. The status of the element of the spark plug may include, but is not limited to, a distance of the gap of the spark plug, or a condition of an insulator of the center electrode of the spark plug. 1. A method of testing a spark plug , the method comprising:exciting the spark plug with a constant current from a DC power supply;measuring a voltage difference across a gap of the spark plug, with a voltage measuring device, wherein the gap of the spark plug is a distance between a center electrode of the spark plug and a side electrode of the spark plug; anddetermining a status of an element of the spark plug from the measured voltage difference.2. The method set forth in claim 1 , wherein determining the status of the element of the spark plug from the measured voltage difference includes determining a gap distance of the spark plug.3. The method set forth in claim 2 , wherein determining the gap distance of the spark plug includes correlating the measured voltage difference to the gap distance of the spark plug.4. The method set forth in claim 3 , wherein correlating the measured voltage difference to the gap distance of the spark plug includes converting the measured voltage difference to engineering gap units using a polynomial function.5. The method set forth in claim 2 , further comprising comparing the gap distance to a maximum gap limit and a minimum gap limit to determine if the gap distance is less than the minimum gap limit claim 2 , if the gap distance is greater than the maximum gap limit claim 2 , or if the gap distance is equal to or greater than the minimum gap limit and equal to or less than the maximum gap limit.6. The method set forth in claim 5 , further ...

DEVICE AND METHOD FOR DETECTING A CYLINDER DEACTIVATION MODE USING INFERRED COMPRESSION

A method of verifying a cylinder deactivation mode on an engine is provided. The method can include activating an ignition device in a deactivated cylinder during an exhaust stroke of the deactivated cylinder. The method can include measuring a voltage of the ignition device. The method can include comparing at least one of an amplitude and a timing of a measured spike of the voltage against a baseline voltage spike. The method can include indicating a status of the deactivation mode based on the comparison against the baseline voltage spike. 1. A method of verifying a cylinder deactivation mode on an engine comprising:activating an ignition device in a deactivated cylinder during an exhaust stroke of the deactivated cylinder;measuring a voltage of the ignition device;comparing at least one of an amplitude and a timing of a measured spike of the voltage against a baseline voltage spike; andindicating a status of the deactivation mode based on the comparison against the baseline voltage spike.2. The method according to claim 1 , wherein a revolution per minute (RPM) of the engine is less than 1 claim 1 ,000 RPM.3. The method according to claim 1 , wherein the method is carried out without combustion within the engine.4. The method according to claim 1 , wherein the deactivated cylinder comprises a plurality of intake and exhaust valves claim 1 , the intake and exhaust valves of the deactivated cylinder being configured to remain closed during the exhaust stroke of the deactivated cylinder.5. The method according to claim 1 , wherein proper operation of the cylinder deactivation mode is indicated without the use of a pressure sensor.6. The method according to claim 1 , further comprising sequentially activating a plurality of ignition devices in subsequent deactivated cylinders to determine proper operation of the cylinder deactivation mode for each of the subsequent deactivated cylinders.7. The method according to claim 1 , wherein the cylinder deactivation mode is ...

IGNITION COIL UNIT AND IGNITION SYSTEM USED IN INTERNAL COMBUSTION ENGINE

An ignition coil unit is attached to an engine body. The engine body includes a cylinder head having a plug hole and a head cover that covers the cylinder head by including an opening hole facing the plug hole. The ignition coil unit includes a coil unit that generates a high voltage and a cylindrical coupling unit that connects the coil unit with a spark plug. The coupling unit includes a flexible sealing section fitting to an outer peripheral surface of the high tension tower and a harder joint fitting to a tip of the sealing section. The sealing section includes an adhesion portion to tightly contact the head cover and a neck portion at least between the adhesion portion and the joint in a Z-axis direction. The neck portion is formed by partially constricting an outer peripheral surface of the sealing section radially inside. 1. An ignition coil unit used in an internal combustion engine as an attachment to an engine body that includes a cylinder head having a plug hole and a head cover that covers the cylinder head by including an opening hole facing the plug hole , the ignition coil unit comprising: a main housing to accommodate components used in the coil unit, and', 'an auxiliary housing to accommodate a cylindrical high tension tower protruding from the main housing to a tip side in an axial direction; and, 'a coil unit to generate a high voltage, the coil unit including;'}a cylindrical coupling unit to couple the coil unit to a spark plug, a flexible sealing section extending in an axial direction of the cylindrical coupling unit while fitting to an outer peripheral surface of the high tension tower,', a first fitting section at a tip of the flexible sealing section, and', 'an adhesion portion to tightly contact the head cover, and, 'the flexible sealing section including, 'a joint aligning with the flexible sealing section in the axial direction,', 'the joint having a second fitting section fitting to the first fitting section of the flexible sealing ...

Ignition device

Engine ignition energy testing device for vehicle

本发明公开了一种车用发动机点火能量测试装置，包括次级电压测试工装、内部具有降压模块的电压探头、钳式电流探头、信号放大器、信号采集器和PC机；所述次级电压测试工装为外部具有绝缘层的导体，其有三个连接端，第一端连接点火线圈的次级输出端、第二端连接火花塞、第三端连接电压探头的输入端，电压探头采集点火线圈的次级电压，电压探头的输出端连接信号采集器的电压信号采集端；所述钳式电流探头的输入端夹套在次级电压测试工装上，采集点火线圈的次级电流，钳式电流探头的输出端连接信号放大器的输入端，信号放大器的输出端连接信号采集器的电流信号采集端，信号采集器的输出端连接PC机。其能精确、可靠的在实车上对点火能量进行测试。

The fault detection method of the ignition system of aircraft turbine engine and the ignition system

本发明涉及涡轮发动机点火系统及其故障检测方法。该系统包括具有激励端子和返回端子的点火火花塞和连至激励端子的火花塞激励器装置，返回端子在使用时连接到涡轮发动机的等电位参考形成结构，激励器装置在使用时连接到命令线和电源且接收到激励信号时经由命令线向火花塞提供激励信号。该系统包括具有电流传感器、电压传感器、第一和第二比较器及微控制器的控制装置，第一比较器将电压传感器生成的信号幅值与第一参考值比较，而第二比较器将电流传感器生成的信号幅值与第二参考值比较，微控制器实现其输出是如下信号的与逻辑门：如果电压传感器生成的信号幅值高于第一参考值且电流传感器生成的信号幅值低于第二参考值，则该信号指示系统故障。

Engine control device

An ECU 70 is provided to an engine 50 including a TCV 57 that changes a tumble flow generated inside a cylinder and being configured to be capable of securing a cooling of a cylinder block 51 and suppressing an occurrence of a cooling loss in a cylinder head 52. The ECU 70 includes a control unit that feedback-controls the TCV 57 based on a primary blow-off voltage Vi so that a flow velocity of air flowing along a surface on the cylinder head 52 side becomes greater than a flow velocity of air flowing along a surface on the piston 53 side in a case where a flow velocity of air flowing along a surface on one of the cylinder head 52 side and the piston 53 side becomes greater than a flow velocity of air flowing along a surface on another side in the cylinder.

Ignition control system

【課題】可燃混合気の燃焼状態をより精度良く推測し、必要に応じて点火プラグに再放電を実施させることで可燃混合気の燃焼状態を改善することが可能な点火制御システムを提供する。 【解決手段】点火プラグ（１９）に放電火花を発生させる放電発生制御を１燃焼サイクル中に１回、又は複数回実施させる一次電流制御部（３１４）と、二次電流を放電経路長で割ることで、放電火花のエネルギ密度の近似値としての近似エネルギ密度を逐次算出する近似エネルギ密度算出部（３１４）と、１燃焼サイクル中において一次電流の遮断を行わせた後の所定期間内に、近似エネルギ密度が所定値よりも大きいことを条件として、その時の放電経路長を積算することで積算値を算出する積算値算出部（３１４）と、を備え、一次電流制御部は、積算値算出部により算出された積算値が第一閾値よりも小さいことを条件として、放電発生制御を再度実施させる点火制御システム。 【選択図】 図１

A Ignition system with more durable spark plugs

점화 플러그를 포함하는 점화 시스템에 있어서, 상기 점화 플러그로 전원을 제공하며, 상기 점화 플러그의 작동 상태에 따라 상기 점화 플러그를 제어하도록 마련되는 점화 장치; 및 상기 점화 장치와 연결되어 적어도 1회 이상의 스파크 발생이 진행되는 점화 플러그;를 포함하고, 상기 점화 장치는, 교류 전원을 입력받아, 상기 점화 플러그를 작동시키기 위한 방전전압을 발생하도록 마련되는 방전전압 발생부; 및 상기 점화 플러그로부터 출력되는 구형파의 개수를 카운트하여 초당 전류의 방전 횟수를 감지하는 고전압 전류 피크 감시부와, 상기 점화 플러그로부터 출력될 구형파의 개수를 카운트하여 초당 전압의 방전 횟수를 감지하는 고전압 레벨 감시부로 구성되는 지능부;를 포함하는 것을 특징으로 한다.

Ignition system with combustion initiation detection

本发明涉及具有燃烧引发检测的点火系统。公开了一种用于发动机的点火系统。该点火系统可以包括：连接用于在发动机内选择性点燃燃料混合物的点火器，配置用于感测发动机运行信息并生成相应信号的至少一个传感器，以及与点火器和该至少一个传感器通信的控制器。控制器可以配置用于引起点火器的第一触发以点燃燃料混合物，基于信号做出燃料混合物被点火器点燃了的确定，以及基于确定而选择性停止点火器的触发。

Engine spark plug inspection method

Misfire detection apparatus of ignition coil on vehicle

이그니션 코일의 실화를 감지하는 것으로, 단일 포트를 통해 이그니션 코일의 1차측 및 2차측의 전류를 검출하여 실화 발생 및 그 원인을 판단하는 것으로, Detects misfire of the ignition coil, and detects the current on the primary side and the secondary side of the ignition coil through a single port to determine the occurrence of the misfire and its cause, 판별되는 기통과 해당 기통에 대한 점화시기에 따라 이그니션 코일의 1차측 전류를 단속하여 해당 기통에 대한 점화를 제어하고, 이그니션 코일의 1차측 혹은 2차측의 단선으로 인한 실화 여부를 판단하는 MCU와, MCU의 제어신호에 따라 이그니션 코일의 1차측 전류를 단속하여 2차측에 고전압이 유기되도록 하는 구동부와, 상기 구동부에서 이그니션 코일의 1차측 전류를 단속할 때 전류 레벨을 검출하는 제1센싱 저항과, 상기 구동부에서 이그니션 코일의 1차측 전류 단속에 따라 2차측에서 1차측으로 유기되는 전압 레벨을 검출하는 제2센싱 저항과, 상기 이그니션 코일의 1차측 전류의 단속 과정에서 제1센싱 저항에 의해 검출되는 전류 레벨과 제2센싱 저항에 의해 검출되는 전압 레벨에 따라 이그니션 코일의 1차측 및 2차측의 상태 신호를 MCU에 인가하는 신호 처리부를 포함하는 것을 특징으로 한다. The MCU which controls the ignition of the corresponding cylinder by controlling the ignition of the ignition coil by interrupting the primary current of the ignition coil according to the determined cylinder and the ignition timing of the corresponding cylinder, A driving unit for interrupting the primary current of the ignition coil to induce high voltage on the secondary side according to the control signal of the MCU, a first sensing resistor for detecting a current level when the driving unit interrupts the primary current of the ignition coil; A second sensing resistor for detecting a voltage level induced from the secondary side to the primary side according to the primary current interruption of the ignition coil in the driving unit; and detected by the first sensing resistor in the process of interrupting the primary side current of the ignition coil Applying the state signals of the primary side and the secondary side of the ignition coil to the MCU according to the current level and the voltage level detected by the second sensing resistor. No. it characterized in that it comprises a processing unit. 실화검출, 이그니션 코일, 전류 단속 Misfire Detection, Ignition Coil, Current Interruption

A device for sensing ignition state of an igniter

본 발명은 차량용 이그나이터의 실화상태 감지장치에 관한 것으로, 점화코일의 2차 코일에 유도되는 전압을 감지하여 출력하는 2차측 전압감지부와, 기준전압을 생성하는 기준전압생성부, 상기 전압감지부에 의해 감지된 전압과 상기 기준전압생성부에 의해 생성된 기준전압을 비교하여 상기 감지된 전압이 기준전압 보다 크면 '하이'레벨의 전압신호를 출력하는 비교기 및, 상기 '하이'레벨의 전압신호가 지속되는 시간을 측정하고, 상기 측정된 시간이 기준시간 이상이면 정상적인 점화상태로 판단하고 상기 측정된 시간이 기준시간 보다 작으면 실화상태로 판단하는 전자제어유니트를 포함하여 구성되어, 점화 코일의 2차측에 문제가 발생하여 실화된 경우를 직접 감지함으로써, 보다 정확하게 실화상태를 감지할 수 있는 효과가 있다. The present invention relates to an apparatus for detecting a misfire state of a vehicle igniter, the secondary side voltage sensing unit for sensing and outputting a voltage induced in a secondary coil of an ignition coil, a reference voltage generation unit for generating a reference voltage, and the voltage sensing unit. A comparator for comparing the voltage sensed by the reference voltage generated by the reference voltage generator and outputting a voltage signal having a 'high' level if the detected voltage is greater than a reference voltage, and the voltage signal having the 'high' level. The electronic control unit is configured to measure the duration of time and to determine the normal ignition state if the measured time is more than the reference time, and to determine the misfire state if the measured time is less than the reference time. By directly detecting a case where a problem occurs on the secondary side, the misfire state can be detected more accurately.

Device for generating radiofrequency plasma

A device for generating a radiofrequency plasma, that includes a voltage generator, and at least one ignition assembly that includes an ignition plug and a switch provided between a supply terminal of the plug and an output of the generator adapted for electrically connecting the output of the voltage generator to the plug upon reception of a control signal, and an electronic control unit generating the control signal. The electronic control unit measures values representative of evolution in time of the output voltage of the generator. The device further includes a mechanism varying the voltage and/or the frequency of the electric current applied to the supply terminal of the plug based on measured values. The evolution of the generator output voltage is representative of the condition of the plug (new or used).

METHOD AND DEVICE FOR DETECTING IGNITION RATES IN AN INTERNAL COMBUSTION ENGINE CYLINDER AND THEIR APPLICATION.

Postérieurement à l'émission d'une première étincelle d'allumage, on déclenche une deuxième étincelle, on détecte la surtension d'amorçage (V2 ; V3 ) de cette deuxième étincelle, on compare cette surtension à un seuil de tension prédéterminée et on déduit l'occurrence ou la non-occurrence d'un raté d'allumage du mélange air/carburant préalable à cette deuxième étincelle, suivant que la surtension détectée est supérieure ou inférieure au seuil de tension prédéterminé. Application à la protection d'un pot contenant un catalyseur d'oxydo-réduction des gaz d'échappement du moteur.

Monitoring the wear of a turbomachine spark plug by determining an ignition duration

L’invention concerne un appareil de surveillance (5) d’un système générateur d’étincelles (1) pour l’allumage du combustible dans une chambre de combustion de turbomachine, le système générateur d’étincelles (1) comprenant une bougie d’allumage (4). L’appareil de surveillance (5) est configuré pour déterminer une durée d’amorçage d’une première étincelle par la bougie d’allumage (4). Figure pour l’abrégé : figure 1 The invention relates to a device (5) for monitoring a spark-generating system (1) for igniting fuel in a combustion chamber of a turbomachine, the spark-generating system (1) comprising a spark plug. ignition (4). The monitoring device (5) is configured to determine a duration of initiation of a first spark by the spark plug (4). Figure for the abstract: figure 1

Monitoring the wear of a turbomachine spark plug by determining the ignition duration

L’invention concerne un appareil de surveillance (5) d’un système générateur d’étincelles (1) pour l’allumage du combustible dans une chambre de combustion de turbomachine, le système générateur d’étincelles (1) comprenant une bougie d’allumage (4). L’appareil de surveillance (5) est configuré pour déterminer une durée d’amorçage d’une première étincelle par la bougie d’allumage (4). Figure pour l’abrégé : figure 1 The invention relates to an apparatus for monitoring (5) a spark-generating system (1) for the ignition of fuel in a turbine engine combustion chamber, the spark-generating system (1) comprising a spark plug ignition (4). The monitoring device (5) is configured to determine a duration of ignition of a first spark by the spark plug (4). Figure for abstract: figure 1

Radio frequency plasma generator controlling method for automotive ignition application, involves regulating parameter based on received signals in real time to promoting ramification of generated spark

L'invention concerne un procédé de commande d'un générateur de plasma radiofréquence, comprenant un circuit d'alimentation (2), présentant un interrupteur (9) commandé par au moins un train d'impulsions de commande, appliquant une tension intermédiaire (Vinter) à la fréquence de commande sur une sortie à laquelle est connectée un résonateur (6) générant une étincelle entre deux électrodes (103, 106) lorsqu'un niveau haute tension est appliqué sur la sortie, ledit procédé étant caractérisé en ce qu'il comprend :- la réception de premiers et seconds signaux de mesure représentatifs respectivement du fonctionnement d'un moteur à combustion et du type d'étincelle générée,- la régulation en temps réel, en fonction des signaux de mesure reçus, d'au moins un paramètre pris parmi au moins le niveau de la tension intermédiaire, la fréquence de commande, la durée du train de commande, de sorte à favoriser la ramification de l'étincelle générée.

Integrated ignition coil withstanding voltage tester

本发明提供一种集成式点火线圈耐压测试仪，包括壳体，壳体前端设有高压接线夹、显示装置、按键开关、接线柱和电源开关，壳体后端设有接地接线柱、点火器开关、保险丝和排风扇，壳体内部设有电路板，电路板由电源模块依次连接信号发生模块、点火模块、信号修正模块和信号放大输出模块构成，壳体还装有高压探头。本发明具有的优点和积极效果是：通过高压探头和信号放大器，来增强测量数值的精准性。同时本产品操作方便、安全可靠，同时可用于测量点火线圈、点火器和一体化点火器，适用范围广。具有结构简单，维修方便，加工成本低、生产效率高等优点。

Ignition system for an internal combustion engine

The invention relates to an ignition system having: a high voltage generator, in particular a step-up transformer, with a primary side and a secondary side; an electrical energy source which can be connected to the primary side; and a spark gap which is designed to carry a current transferred by the step-up transformer to the secondary side. The step-up transformer has a bypass for transferring electrical energy from the electrical energy source to the secondary side. The invention is characterised in that the bypass is designed to support a diminishing electrical signal in the secondary coil of the high-voltage generator after a predefined time or once a predefined current intensity of the current has been reached. The invention also relates to a corresponding method for generating and maintaining an ignition spark.

Diagnosis of the fouling condition of sparkplugs in a radiofrequency ignition system

The invention relates to a radiofrequency ignition device that comprises: a control means (5) capable of generating an ignition control signal (V1); a supply circuit (2) controlled by the ignition control signal (V1) for applying a supply voltage on an output interface (OUT) of the supply circuit at the frequency defined by the control signal; at least one plasma generation resonator (1) connected on the output interface of the supply circuit and capable of generating a spark between two ignition electrodes (10, 12) of said resonator upon an ignition control; wherein said device is characterised in that it comprises: a means (6) for measuring an electric parameter representative of a variation in the supply voltage of the resonator; a module (7) for determining the fouling condition of the electrodes based on the measured electric parameter and on a predetermined reference value.

Optimised generation of a radio frequency ignition spark

본 발명은 무선주파수 플라즈마 발생기를 제어하는 방법에 관련되며, 상기 방법은 적어도 하나의 제어 펄스 트레인에 의해 제어되는 스위치(9)를 구비한 전원 회로(2)를 포함하며, 스위치는 공진기에 연결된 출력에 제어 주파수에서 중간 전압(V inter )을 인가하고, 공진기는 고 전압 레벨이 전원 회로의 출력에 인가되어 있을 때 2개의 전극들(103,106) 사이에서 스파크를 발생시킬 수 있으며, 상기 방법은 연소 기관의 오퍼레이션 및 발생된 스파크 유형을 각각 나타내는 제1 전기 측정 신호들 및 제2 전기 측정 신호들의 수신하고; 수신된 측정 신호들에 따라, 발생되는 스파크의 브랜칭을 촉진하도록, 적어도 중간 전압 레벨, 제어 주파수 및 제어 트레인의 지속기간으로부터 선택된 적어도 하나의 파라미터를 실시간 조절하는 것을 포함한다. The invention relates to a method for controlling a radio frequency plasma generator, the method comprising a power supply circuit (2) with a switch (9) controlled by at least one control pulse train, the switch comprising an output connected to the resonator applying an intermediate voltage (V inter) at the control frequency for the resonator is able to generate a spark between two electrodes (103 106) when it is applied to the output of the power supply circuit and the voltage level, the method comprising: a combustion engine Receiving first electrical measurement signals and second electrical measurement signals, each of the first electrical measurement signals and the second electrical measurement signals indicative of an operation of the first and second spark types; Controlling in real time at least one parameter selected from at least the intermediate voltage level, the control frequency and the duration of the control train in order to facilitate branching of the generated spark in accordance with the received measurement signals.

Ignition system

An ignition system including: a first control unit configured to generate a high voltage that is to be supplied to a spark plug at a secondary winding of an ignition coil by applying and then cutting off a primary current to a primary winding of the ignition coil; a second control unit configured to cut off electric power supplied from the secondary winding to the spark plug by energizing the primary winding after the first control unit cuts off the primary current; a re-energizing current measuring unit configured to measure a re-energizing current energizing the primary winding by the second control unit; and an energizing period determining unit configured to determine an energizing period during which the primary current is applied to the primary winding by the first control unit, corresponding to the re-energizing current measured by the re-energizing current measuring unit.

Spark plug fault detection for gaseous fuel engine

提供了一种用于检测发动机中的火花塞故障的系统。该系统可以包括联接到发动机并配置成测量发动机数据的一个或多个传感器装置、与传感器装置通信的控制器，以及输出装置。控制器可以配置成基于发动机数据来确定至少失火计数、次级变压器电压和排气口温度，基于失火计数、次级变压器电压和排气口温度中的一个或多个来确认故障状况，并响应于所述故障状况执行纠正动作。输出装置可以配置成生成对应于故障状况的通知。

Method for operating an ignition system equipped with a boost converter

A method for operating an ignition system is already known in which a primary coil of a first voltage generator is energized and the energization of the primary coil is interrupted in order to generate an ignition spark at a spark gap. Furthermore, in order to protect the ignition spark generated by the first voltage generator a second voltage generator is operated. During operation of the boost converter, a defined closed-loop- or open-loop-controlled power level is output to the ignition sparks. However, in certain combustion methods in the internal combustion engine there is very high turbulence in the combustion chamber, which turbulence deflects the ignition sparks at the electrodes of the spark plugs to such an extent that they risk breaking away or becoming unstable. As a result of the deflection of the spark, the electrical voltage across the electrodes of the spark plugs rises, wherein the spark current drops to a correspondingly large extent and therefore there is a risk of a spark breakaway. Therefore, on the secondary side of the ignition system the secondary-side current or the secondard-side voltage is measured in order to be able to detect the risk of a spark breakaway. In the case of high combustion chamber turbulence, the voltage across the spark plug electrodes rises strongly and the probability of a spark breakaway increases. If this spark breakaway occurs before the successful initiation of ignition of the mixture, an undesired misfire occurs. According to the invention it is provided that renewed ignition is initiated by the first voltage generator provided that the threshold condition is satisfied.

Electronic ignition system for internal combustion engine and driving method thereof

一种用于内燃机的电子点火系统，包括：点火线圈(2)，设置有至少一个初级绕组(3)和次级绕组(4)；开关(6)，连接到初级绕组(3)并且根据驱动信号的值而能驱动位于断开和/或闭合位置；控制单元(7)，与开关(6)相关联并且被配置为根据驱动信号(G)的值将开关驱动到断开和/或闭合位置。这种系统还包括电压改变电子元件(8)，连接到电连接(5)、可操作地介于电连接(5)与初级绕组(3)之间并且被配置为根据至少第一(V1)和第二(V2)电压值之间的控制信号的值来改变初级绕组(3)的电压值。该系统还包括电离测量装置(20)，在与次级绕组(4)相关联的火花塞(100)的所述放电间隙(100a)周围，并且被设置成检测次级绕组(4)中的电流值并且向控制单元(7)发送表示所述值的信号，其中，控制单元(7)被配置为在电弧或火花停止时激活所述测量装置(20)。

How to estimate the electrode consumption of spark plugs and their equipment

Ignition device for internal combustion engine and control device for internal combustion engine

Energization abnormality of a switch element of an internal combustion engine ignition device is detected appropriately. To this end, in an internal combustion engine ignition device that includes an ignition coil and an ignition plug, the ignition coil includes a primary coil including a main primary coil and a sub primary coil and a secondary coil that generates secondary current in response to a voltage variation generated in the primary coil. The internal combustion engine ignition device includes a main switch element that performs energization/deenergization of the main primary coil in a first direction, a sub primary coil magnetic flux generation state switching unit capable of switching between a forward direction magnetic flux generation state in which energization of the sub primary coil in the first direction is performed and an opposite direction magnetic flux generation state in which energization of the sub primary coil in a second direction is performed, and an abnormality detection section that detects energization abnormality to the sub primary coil. The abnormality detection section is configured so as to detect energization abnormality on the basis of overlap between energization in the first direction and energization in the second direction of the sub primary coil.

Method and device for detection of ignition failures in an internal combustion engine cylinder

After the emission of a first ignition spark, a second spark is triggered, the initiation overvoltage (V2?; V3?) of this second spark is detected, this overvoltage is compared with a predetermined threshold voltage and the occurence or the non-occurence of a failure of ignition of the air/fuel mixture prior to this second spark is deduced, according to whether the overvoltage detected is greater or less than the predetermined threshold voltage. Application to the protection of a chamber containing an oxidation reduction catalyser for the exhaust gases of the engine.

Knocking detecting device for internal combustion engine

(57)【要約】 【課題】 ＬＣ共振マスク解除時のノイズによるノッキ ング検出精度の悪化を抑制することのできる内燃機関の ノッキング検出装置を提供する。 【解決手段】 イオン電流検出部で検出されたイオン電 流信号は、ＬＣ共振マスク部３１を介して緩衝増幅器５ に供給される。緩衝増幅器の第１の演算増幅器５１には 第１のフードバック抵抗５１２と並列にノイズ除去用コ ンデンサ５１３が設置される。なお第２の演算増幅器５ ２は第２の演算増幅器で反転されたイオン電流信号を再 反転するためのものである。この緩衝増幅器によれば、 ＬＣ共振マスク部のマスク解除時にバンドパスフィルタ 部の入力にステップ状の変化が生じることが防止され、 ノッキング検出精度の悪化が抑制される。

Misfire-detecting system for internal combustion engines

A misfire-detecting system detects a misfire occurring in an internal combustion engine. A value of sparking voltage after generation of an ignition command signal indicative of ignition timing is detected and compared with a predetermined voltage value, and it is determines based upon the results of the comparison whether or not a misfire has occurred in the engine. The determination as to occurrence of the misfire is based upon at least one of a time period over which the detected value of the sparking voltage exceeds the predetermined voltage value, and an area of a portion of detected values of the sparking voltage exceeding the predetermined voltage value.

Internal combustion engine control device

Conventionally, detection of the state of a sub-chamber has been impossible unless a sensor is installed near the sub-chamber, preventing appropriate engine control. An ECU 20 includes: a jet intensity estimating unit 51 for estimating the intensity of a flame jet by means of at least one of a primary current, a primary voltage, a secondary current, and a secondary voltage of an ignition device which is attached inside a sub-combustion chamber, injects into a main combustion chamber a flame jet generated by ignition of an air-fuel mixture inside the sub-combustion chamber, and supplies a secondary current to an ignition plug for igniting the air-fuel mixture in the main combustion chamber; and an engine control unit 52 which controls an internal combustion engine on the basis of a combustion state inside the sub-combustion chamber determined from the estimated intensity of the flame jet.

Ignition apparatus having circuit to continue spark discharge in an internal combustion engine

An ignition apparatus for internal combustion engines is provided. The ignition apparatus is equipped with an ECU. The ECU monitors a path length of a discharge of a spark for a period of time in which a second circuit delivers or inputs energy in the form of a threshold value determination. When the path length has become too short, the ECU determines that ignition is expected to be delayed and then selects a special mode to control the delay of the ignition. The ECU increase a target value of an energy input amount. This enables the delay of ignition resulting from a short extension of the path length to be minimized. The ignition apparatus equipped with the second circuit to continue the discharge of sparks is, thus, capable of reducing a variation in ignition without the need for uniformly increasing the energy input amount.

Ignition device

This ignition device 1 is provided with a plasma device 10, a first circuit 11, a second circuit 12 and a control unit 13. The plasma device 10 causes plasma discharge to occur in an air-fuel mixture before arc discharge is caused to occur. The first circuit 11 causes an ignition plug 5 to begin arc discharge. During the arc discharge, the second circuit 12 energizes a primary coil 2 in the opposite direction to the energizing direction resulting from the first circuit 11, thereby maintaining the energizing direction of a secondary coil 3 in the same direction as the energization begun by the operation of the first circuit 11, and causing the arc discharge to continue. The control unit 13 controls the operation of the first circuit 11, the second circuit 12 and the plasma device 10. By this means, when causing plasma discharge to occur in an air-fuel mixture, the period during which energy is input into the ignition plug 5 can be shortened compared with a situation in which plasma discharge is not caused to occur in the air-fuel mixture, and the amount of energy input can thus be reduced.

Ignition system and method for operating an ignition system

Disclosed is a method for operating an ignition system (1) for an internal combustion engine, said ignition system comprising a primary voltage generator (2) and a step-up converter (7) for maintaining an ignition spark generated by the primary voltage generator (2). According to the invention, once it has been determined (100) that a change in energy is required in order for an ignition spark to be maintained by the step-up converter (7), a switch-on time of the step-up converter (7) in relation to a switch-off time of the primary voltage generator (2) is modified (300).

Engine control device

An ECU 70 is provided to an engine 50 including a TCV 57 that changes a tumble flow generated inside a cylinder and being configured to be capable of securing a cooling of a cylinder block 51 and suppressing an occurrence of a cooling loss in a cylinder head 52. The ECU 70 includes a control unit that feedback-controls the TCV 57 based on a primary blow-off voltage Vi so that a flow velocity of air flowing along a surface on the cylinder head 52 side becomes greater than a flow velocity of air flowing along a surface on the piston 53 side in a case where a flow velocity of air flowing along a surface on one of the cylinder head 52 side and the piston 53 side becomes greater than a flow velocity of air flowing along a surface on another side in the cylinder.

Ignition control device

Eine Zündungssteuerungsvorrichtung (32, 52) für einen Verbrennungsmotor (11), der eine Zündkerze (19) umfasst, umfasst einen Zylinderinnendruck-Erfassungsabschnitt, einen Frequenzsignal-Übertragungsabschnitt, der ein Frequenzsignal mit einer vorbestimmten Frequenz an ein Schaltelement (313, 515A, 515B) sendet, und einen Schwachentladungs-Erzeugungsabschnitt, der bewirkt, dass das Frequenzsignal während eines Einlasstakts übertragen wird und das Frequenzsignal so steuert, dass eine schwache Entladung an der Zündkerze mehrere Male erzeugt wird. Der Schwachentladungs- Erzeugungsabschnitt steuert das Frequenzsignal so, dass ein Einschaltverhältnis des Schaltelements gemäß dem Zylinderinnendruck geändert wird, so dass die Frequenz der Erzeugung von schwachen Entladungen während einer Zeitspanne, in der das Frequenzsignal übertragen wird, höher als eine vorbestimmte Frequenz wird. An ignition control device (32, 52) for an internal combustion engine (11) including a spark plug (19) includes a cylinder internal pressure detecting section, a frequency signal transmitting section which supplies a frequency signal having a predetermined frequency to a switching element (313, 515A, 515B). and a low-discharge generating section that causes the frequency signal to be transmitted during an intake stroke and controls the frequency signal so as to generate a weak discharge on the spark plug multiple times. The weak discharge generating section controls the frequency signal so that a duty ratio of the switching element is changed according to the in-cylinder pressure so that the frequency of generation of weak discharges becomes higher than a predetermined frequency during a period in which the frequency signal is transmitted.

Thermally controlled ignition device

Embodiments of the present technology relate to a temperature controllable and variable spark plug, and method of use. An example thermally controlled ignition device may comprise at least one sensor communicatively coupled to a control module for determining whether an engine characteristic is within a desired operating range and at least one heating element for adjusting the temperature of the ignition device.

A misfire detector device for use in internal combustion engine

System and method for evaluating an integrated coil on plug ignition system

In at least one embodiment, an apparatus for evaluating performance of an integrated coil on plug (CoP) assembly is provided. The apparatus comprises a controller. The controller is configured to transmit a control signal to activate the CoP assembly. The controller is further configured to receive an indirect signal including a low frequency (LF) component from the CoP assembly responsive to the control signal. The controller is further configured to compare the LF component to predetermined data to evaluate the performance of the CoP assembly.

Method for operating petrol-internal-combustion engine for diagnosis of start of combustion process, involves evaluating electrical measured variables or actuating variable of ignition system for diagnosing starting of combustion process

The method involves injecting fuel directly and/or indirectly into a combustion chamber of a cylinder, and igniting a combustion mixture present in the combustion chamber by an ignition system i.e. corona-ignition system, at predetermined ignition time points (0a-0c, 4a-4c), where the ignition system ignites the combustion mixture by producing non-thermal plasma and the ignition duration is arbitrarily adjustable. Electrical measured variables (U1, U2, U3) or actuating variable e.g. resistance, of the ignition system is evaluated for diagnosing starting of the combustion process.

internal combustion engine controller

Current profile optimization of an ignition system

The subject matter of this specification can be embodied in, among other things, a method that includes receiving a collection of measurements of electric current amplitude in a primary winding of an engine ignition system having the primary winding and a spark plug, identifying an ignition start time, identifying an inflection point based on the plurality of measurements, determining an inflection point time representative of a time at which the identified inflection point occurred, determining a spark start time based on an amount of time between the ignition start time and the inflection point time, and providing a signal indicative of the spark start time.

Ignition system comprising a measuring device arranged to provide measurement signals to the control system of an internal combustion engine

Föreliggande uppfinning avser ett tåndsystem (T) till en förbrånningsmotor, vilkenförbrånningsmotor innefattar ett styrsystem, vidare innefattar tåndsystemet (T) enspånningskålla (3 0), åtminstone en tåndspole (10, 1 1, 12) med åtminstone enprimårspole (L2, L4, L6) respektive sekundårspole (L3, L5, L7) för ett tändstift (13, 14,15) samt en måtanordning (5 0) för åtminstone en av parametrama gnistström, j onström,tåndspånning och primårspånning varvid nåmnda måtanordning (5 0) år anordnad att gemåtsignaler till nåmnda styrsystem för reglering av tåndsystemet (T), varvidtåndsystemet (T) åven innefattar medel för att transforrnera upp spånning och lagraenergi samt ett flertal sWitchar (Sl - S7), varvid nånmda styrsystem år anordnat att styranåmnda sWitchar (S1 - S7), medelst nåmnda måtsignal/ er, för tillförsel av adaptiv gnistenergi och/ eller styra gnistans polaritet. The present invention relates to an ignition system (T) for an internal combustion engine, which internal combustion engine comprises a control system, further the ignition system (T) comprises a single-voltage source (30), at least one ignition coil (10, 1 1, 12) with at least one primary coil (L2, L4, L6) respective secondary coil (L3, L5, L7) for a spark plug (13, 14,15) and a measuring device (50) for at least one of the parameters spark current, ion current, tooth voltage and primary voltage, said measuring device (50) being arranged to measure signals to said control system for regulating the ignition system (T), wherein the ignition system (T) also comprises means for transforming voltage and storage energy and a number of switches (S1 - S7), said control system being arranged to control said switch (S1 - S7), by means of said measuring signal (s), for supplying adaptive spark energy and / or controlling the polarity of the spark.

Motor vehicles petrol engine`s combustion chamber gas dynamic effects identifying method, involves identifying effects based on parameter at existence of effects, where parameter correlates with coil voltage and current

The method involves recording primary sided and/or secondary sided coil voltage and/or the secondary sided coil current. Gas dynamic effects occurring in a combustion chamber of an internal combustion engine is identified in dependence of a parameter at the existence of gas dynamic effects, where the parameters correlate with the primary sided and/or secondary sided coil voltage and the secondary sided coil current. An independent claim is also included for a device for the identification of a gas dynamic effects occurring in a combustion chamber of an internal combustion engine working in shift operation.

Method for ignition detection for spark plug of internal combustion engine of motor vehicle, involves outputting error indication when difference amount between maximum amounts of two ignitions exceeds preset difference threshold

The method involves determining maximum amounts (8', 8'', 8''', 8'''') of secondary voltage (3) of a spark plug at individual ignitions, where the secondary voltage is inductively determined. The maximum amounts of the secondary voltage are stored in a memory device. A difference amount between the maximum amounts of the two ignitions is determined, and an error indication is output when the difference amount exceeds a preset difference threshold (10). The difference threshold is changeable based on a parameter of an internal combustion engine.

Ignition device for internal combustion engine

Ignition apparatus

Optimised generation of a radio frequency ignition spark

The invention relates to a method for controlling a radio-frequency plasma generator, comprising a supply circuit (2) with a switch (9) controlled by at least one control pulse train, for applying an intermediate voltage (Vinter) at a control frequency on an output to which is connected a resonator (6) for generating a spark between two electrodes (103, 106) when a high voltage level is applied to the output, said method being characterised in that it comprises: receiving first and second measurement signals respectively representative of the operation of a combustion engine and of the type of spark generated; real-time adjusting, based on the received measurement signals, at least one parameter selected from at least the intermediate voltage level, the control frequency and the duration of the control train, in order to promote the branching of the spark generated.

Combustion roughness servo control to control fuel/air metering or egr metering to an internal combustion engine

A servo control which adjusts the supply of combustion diluent (either excess air or EGR) upwards until the statistical variation of flame speed achieves a set limit. The system is intended as a control coefficient input to an automatic control system capable of more rapid dynamic response than the roughness controller itself. For engines characterized by ex­ ceptional homogeneity and in-cylinder flow control, control of flame speed variability up to set limit nearly minimizes NO X emissions and very nearly optimizes fuel efficiency at all engine speeds and loads. Two «measures» of flame speed are dis­ closed, first peak blowdown pressure in the exhaust, and sec­ ond, the ionization breakdown voltage of an additional spark fired a specified number of crank angles after the ignition spark.

Multichannel electronic ignition device with high-voltage controller

A control circuit is connected to a plurality of driving stages. Each driving stage includes a high-voltage terminal for driving an inductive load. The control circuit is provided with a corresponding plurality of control stages. These control stages are integrated in a single semiconductor body and connected each to the high-voltage terminal of a respective driving stage.