СХЕМА БЛОКИРОВКИ ЗАПУСКА В РАБОЧЕМ ИНСТРУМЕНТЕ С ДВИГАТЕЛЕМ ВНУТРЕННЕГО СГОРАНИЯ

Изобретение может быть использовано в рабочих инструментах с двигателем внутреннего сгорания. Схема блокировки запуска предназначена для рабочего инструмента с двигателем (20) внутреннего сгорания. Двигатель (20) внутреннего сгорания содержит цилиндр (21) с камерой (25) сгорания и управляющее устройство (60) для работы двигателя. При работе двигателя к камере (25) сгорания подводятся воздух для сгорания и топливо, при которой находящаяся в камере (25) сгорания топливно-воздушная смесь воспламеняется при помощи свечи (26) зажигания. Переключатель выбора режимов предназначен для приведения в действие двигателя (20) внутреннего сгорания и имеет рабочее положение и положение запуска для обогащения топливно-воздушной смеси. Тормозной механизм (19) блокировки связан с рабочим органом инструмента. Тормозной механизм (19) блокировки в рабочем режиме тормозит рабочий орган посредством тормоза, а в дежурном состоянии разблокирует рабочий орган, не приводя в действие тормозную систему. Датчик эксплуатации ...

Двигатель внутреннего сгорания

DREHRICHTUNGSFUEHLER FUER EIN ZUENDSYSTEM EINER BRENNKRAFTMASCHINE

Vorrichtung und Verfahren zum Schützen eines Katalysators vor Fehlzündungen

Verfahren zum Steuern eines Motorbetriebs in einem Fahrzeug (20) in Ansprechen auf eine Fehlzündung von einem einer Vielzahl von Motorzylindern (52), die durch eine Vielzahl von Kraftstoffeinspritzeinrichtungen (32) mit Kraftstoff versorgt werden, wobei das Fahrzeug (20) ferner ein Fehlzündungserfassungsmodul (56) und ein Steuermodul (42), das eine Fehlzündungsdiagnose auf Grundlage einer Eingabe von dem Fehlzündungserfassungsmodul (56) vorsieht, sowie einen Speicherbehälter (60) umfasst, in dem Kraftstoffdampf gesammelt werden kann und von dem der Kraftstoffdampf zur Lieferung an die Zylinder (52) gespült werden kann, wobei das Verfahren im Falle, dass eine Fehlzündung von einem einzigen der Vielzahl von Motorzylindern (52) detektiert wird, umfasst, dass: zumindest eine der Kraftstoffeinspritzeinrichtungen (32) deaktiviert wird; und eine Steuerkette verwendet wird, um eine Kraftstofflieferung durch die Einspritzeinrichtungen (32) an die Zylinder (52) zu steuern; dadurch gekennzeichnet, ...

Electronic, revolution rate dependent control and/or diagnosis for internal combustion engines involves computing control or diagnostic value from voltage amplitude per revolution

The method involves generating a.c voltages depending on engine angular position and speed that are sampled by a controler and used to supply electrical current. The controler detects at least one amplitude per revolution, derives a control or diagnostic value, sets one or more control or diagnostic flags and/or triggers a control event in the controler and/or a diagnostic or control signal, especially an ignition and/or load information signal. The method involves using a generator synchronized to the engine that generates a.c voltages depending on the engine angular position and speed that are sampled by a preferably programmable controler and used to supply electrical current, whereby the amplitudes of the a.c. voltages correspond to the engine speed. The controler detects at least one amplitude occurring each revolution and computes a control or diagnostic value from it, sets one or more control or diagnostic flags and/or triggers a control event in the controler and/or a diagnostic ...

Verfahren zum Betrieb eines Verbrennungsmotors

Verfahren zum Betrieb eines Verbrennungsmotors, wobei der Verbrennungsmotor (8) eine Zündeinrichtung, eine Einrichtung zur Zufuhr von Kraftstoff und eine Einrichtung zur Erfassung der Drehzahl (n) des Verbrennungsmotors (8) besitzt, wobei der Verbrennungsmotor (8) eine zulässige Grenzdrehzahl (ng) und oberhalb der Grenzdrehzahl (ng) einen Abregelbereich (A) der Drehzahl (n) aufweist, wobei die Drehzahl (n) des Verbrennungsmotors (8) im Abregelbereich (A) durch Aussetzen der Zündung begrenzt wird, wobei die Zündung im Abregelbereich (A) durch Aussetzen der Zündung in einzelnen Motorzyklen, in denen die Drehzahl (n) oberhalb einer im Abregelbereich (A) liegenden Abregeldrehzahl (na) liegt, begrenzt wird, und wobei im Abregelbereich (A) die Austaktrate (ASR), die das Verhältnis der Anzahl der Motorzyklen, zu denen die Zündung ausgesetzt wird, zur Gesamtzahl der Motorzyklen angibt, verstellt wird, dadurch gekennzeichnet, dass zur Regelung der zugeführten Kraftstoffmenge eine Regelgröße für ...

FUNKENLOSE ABSCHALTUNG VON ZUENDANLAGEN

Zuendsystem oder -vorrichtung mit Trennschaltung oder -stufe fuer Verbrennungsmaschinen u.dgl.

Switch for stopping an engine

A switch for stopping an engine comprises a switch contact 7a printed on a substrate 6 supported on an insulating base 9, inner and outer casing parts 2, 1, an apertured insulating sheet 5 on the substrate 6, a pressure sensitive electrically conductive rubber member 4 on the insulating sheet 5 for contacting the contact 7a to close the switch when a part 2a of the inner casing 2 is depressed and a deformable spring 3 between the pressure sensitive member 4 and the inner casing 2 for preventing erroneous operation of the switch. The substrate 6 also carries electronic components of a circuit for stopping the engine (Figs 5 and 6) whereby the necessity of wiring the circuit to the switch is eliminated. Reference is made to stopping the engine if the oil level is low. ...

Capacitor discharge ignition system having automatic spark advance

Disclosed herein is a capacitor discharge ignition system including a U-shaped magnetic core having a pair of legs, and a rotatable member including a magnet having arcuately spaced first and second pole shoes located for movement past the core legs, the second pole shoe having a length greater than the distance between the core legs and trailing the first pole shoe relative to a normal direction of rotation of the rotatable member. The ignition system also includes an ignition circuit including a charge capacitor, a switch for selectively discharging the capacitor to effect ignition, and charging, primary, and secondary windings wound on the core leg which is first approached by the magnet means during normal rotation of the rotatable member, which windings are responsive to each passage of the magnet past the core for sequentially charging the charge capacitor and operating the switch to discharge the capacitor to effect ignition so as to provide an advance in the time of ignition in ...

IGNITION CIRCUITS FOR INTERNAL COMBUSTION ENGINES

Spark Ignition Interruption and Catalytic Converter Protection

APPARATUS FOR APPLYING POWER TO FILAMENTS OF GLOW PLUGS

IGNITION CIRCUIT FOR AN INTERNAL COMBUSTION ENGINE

... 1528868 Ignition circuit ROBERT BOSCH GmbH 23 Sept 1976 [25 Sept 1975] 39424/76 Heading F1B The invention relates to an ignition circuit for an internal combustion engine of the kind comprising a coil 6 the current supply to the primary winding 5 of which is alternately and repeatedly switched on and off by a load switch 7 having a control electrode, in response to a repetitive control signal applied to the control electrode and generated in the circuit in response to rotation of the engine and for long as the current supply to the circuit is maintained. Provision is made for a temporary current conductivity of the load switch 7 when the ignition circuit is disconnected from its source of current supply 1 in the conductive state of the load switch 7, by means of a control branch of the circuit containing a control switch (control transistor 15) such that a current flow extending at least through a portion of this control branch caused by the ignition energy surge in the ignition coil is ...

Process and device to obtain by variation in advance the deceleration of the engine of a motor vehicle provided with an automatic gear box.

UEBERWACHUNGSSCHALTUNG FUER EINEN IN DER ZUENDEINRICHTUNG EINES VERBRENNUNGSMOTORS ANGEORDNETEN OELDRUCKSCHALTER

PROTECTION ARRANGEMENT FOR BATTERY POWERED IGNITION SYSTEMS OF MACHINES.

DISPLAY CONTROL APPARATUS FOR USE INTERNAL COMBUSTION ENGINE

Shutdown circuit for an ignition system of a lawn care device in case of defective processor

A lawn care device may include an engine to selectively power the lawn care device, a frame supporting the engine of the lawn care device, an ignition system for selectively powering the lawn care device based at least in part on operation of an ignition interface controlled by a processor (310), an optical isolator (320) which detect the operational presence of the processor (310) and a shutdown circuit (300) which is able to ground out the ignition coil (360) as a function of the conductive state of the optical isolator (320); the shutdown circuit being powered by an ignition coil (360) of the ignition system to generate a failsafe condition in response to failure or loss of the processor (310).

PROTECTION SYSTEM

Magnetic ignition system

INTERNAL COMBUSTION ENGINE SHUT-OFF DEVICE

A shut-off device for use with an internal combustion engine having an electric ignition comprises a switch having first and second states, connected to the engine ignition in such a way that the ignition current is not inhibited when the switch is in its first state but is inhibitied when the switch is in its second state. The device further has means for changing the switch from its first state to its second state and means for automatically maintaining the switch in its second state for a predetermined interval of time sufficient to allow the engine to die.

IGNITION SYSTEM WITH ADDITIONAL FUNCTIONS

A microcomputer is used in the invention for control of the ignition functions of an ignition system of an i.c. engine. A switch in an operating handle or the like is connected via a transistor to a digital input of the computer. This reads the status of the switch once every revolution of the engine and as long as the switch is closed the ignition is delayed at an r.p.m. above a predetermined, programmed value (e.g. 3000 r.p.m.) and the r.p.m. of the engine is restricted. When the engine shall work the switch is opened and the ignition is normal. The restriction is used at start in order to avoid speeding during the start procedure. As a complement to said switch a parallel switch can be connected and operated by a brake device of the engine. During braking the r.p.m. of the engine is thereby restricted to the same value as the r.p.m. during the start.

TRIGGERED IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINES WITH ANTI-REVERSE RUNNING CONTROL

A two-cylinder, two-cycle engine for an outboard motor includes a pull-rope starter unit and an alternator driven, capacitor discharge ignition system. The alternator includes an annular permanent magnet secured within a flywheel skirt and includes a pair of circumferential opposite poles with diametrical spaced neutral areas. A stator assembly is mounted within the annular magnet and includes a semicircular core with charging coil at each end. The coils are connected to charge a capacitor unit which is discharged through a control rectifier. A trigger coil is connected to the gate of the rectifier and is mounted in coplanar relation between the charging coils. The trigger coil is wound on a pole aligned with and spaced from the stator core with the coil and pole rotatably mounted by a housing having an integral cam for positioning a throttle lever. The housing rotates through a selected segment of the core. The outer periphery of the segment is non-circular to form an increasing air gap ...

CAPACITOR DISCHARGE IGNITION SYSTEM WITH FREQUENCY OPERATED D LIMITING CONTROL

Disclosed herein is a capacitor discharge ignition system with speed-limiting capability, which system comprises a charge capacitor, a coil, a magnet rotatable relative to the coil for generating alternating potential in the coil, a rectifier connected between the coil and capacitor for rectifying the alternating potential to a potential of one polarity and for applying the potential of one polarity to charge the capacitor, a first switch connected to the capacitor for discharging the capacitor to generate a spark in response to the application of a first trigger signal, a second switch connected to the capacitor for preventing charging of the capacitor in response to the application of a second trigger signal above a predetermined potential, and a signal generating circuit connected to the second switch and operative to generate the second trigger signal in response to rotation above a predetermined speed of the magnet, which second signal generating circuit includes a transformer connected ...

CAPACITOR DISCHARGE IGNITION SYSTEM WITH OVERSPEED CONTROL

OVERSPEED/OVERHEAT CIRCUIT WITH A LATCH FOR CAPACITIVE IGNITION SYSTEMS

IGNITION CONTROL APPARATUS FOR GENERAL-PURPOSE ENGINE

In an apparatus for controlling ignition of a general-purpose internal combustion engine in which an ignition signal is produced both in a compression stroke and in an exhaust stroke of a four stroke cycle, one of the ignitions to be conducted based on the produced two ignition signals is cut and an after-ignition-cut engine speed is detected. Then it is discriminated whether each of the two ignition signals was produced in the compression stroke or in the exhaust stroke based on a difference between an average engine speed and the after-ignition-cut engine speed, and the ignition is controlled based on the ignition signal discriminated to be produced in the compression stroke in the two ignition signals, thereby enabling to improve the duration life of an ignition plug, with simple and compact structure.

Interrupteur électrique automatique à fonctionnement par huile sous pression, pour installation d'allumage de bougies de moteurs à explosions, constituant en même temps un appareil de contrôle et de sécurité pour la pression d'huile.

Vorrichtung an Kraftfahrzeugen zum selbsttätigen Unterbrechen des Zündstromkreises beim Stillsetzen des Motors.

Einrichtung an Verbrennungsmaschinen mit elektrischer Zündung zur Sicherung gegen Überhitzung.

Sicherheitsschalter für Zündanlagen von Verbrennungsmaschinen mit Schmieröldruckleitung.

Dispositif mettant automatiquement hors service le circuit d'allumage d'un moteur à explosions, lorsque celui-ci ne marche pas.

REGULATEUER POUR UN MECANISME D'AVANCE A L'ALLUMAGE.

MONITORING CIRCUIT FOR OIL AT COMBUSTION ENGINES.

Ignition control apparatus for internal combustion engines

SAFETY DEVICE FOR AN APPARATUS HAS DRIVING GUIDE WITH THE HAND

Internal Combustion Engine Air Inlet Control Mechanism

CIRCUIT D'ALLUMAGE POUR MOTEUR A COMBUSTION INTERNE

Circuit d'allumage pour moteur à combustion interne à allumage par étincelles utilisant une bobine d'allumage. Le circuit d'allumage comprend un comparateur 14 pour détecter le courant passant dans l'enroulement primaire 4 de la bobine d'allumage et pour produire un signal quand le courant atteint un niveau prédéterminé, et un moyen 16, 18, 20 pour faire commuter un transistor 2 en réponse audit signal de façon à couper le courant dans l'enroulement primaire et à produire une étincelle. Application au domaine des moteurs. (CF DESSIN DANS BOPI) ...

DISPOSITIF POUR FACILITER UN CHANGEMENT DE RAPPORT RAPIDE SUR DES VEHICULES A MOTEUR

Ce dispositif est destiné à faciliter le changement de rapport rapide sur des véhicules à moteur, notamment des motocyclettes, où l'allumage du mélange dans le moteur à combustion interne s'effectue au moyen d'un système d'allumage extérieur, et qui possèdent un mécanisme de transmission à plusieurs rapports, dont la sélection s'effectue à l'aide d'un dispositif de changement de vitesse. Dans le dispositif selon l'invention, un contacteur prévu dans le dispositif de changement de vitesse déclenche, au début de chaque changement de rapport, un étage de temporisation relié au système d'allumage et qui rend ce dernier inopérant pendant une durée prédéterminée. Le mécanisme de transmission est ainsi soulagé pendant le passage d'un rapport à un autre.

DEVICE OF CIRCUIT FOR the LIGHTING OF INTERNAL COMBUSTION ENGINES

A.DISPOSITIF DE CIRCUIT POUR L'ALLUMAGE DE MOTEURS A COMBUSTION INTERNE. B.DISPOSITIF CARACTERISE EN CE QUE L'INSTALLATION DE COMMANDE 23 COMPORTE UN CALCULATEUR 33, UN COMPTEUR 35, UNE MEMOIRE DE VALEUR FIXE 38, ET UN COMMUTATEUR TEMPORISE 40, CETTE INSTALLATION DE COMMANDE 23 ENGENDRANT AU DEBUT DE CHAQUE DEMI-ONDE DE TENSION UN SIGNAL DE REFERENCE METTANT SIMULTANEMENT EN CIRCUIT LE COMPTEUR 35 AVEC UNE FREQUENCE DE CADENCEMENT FIXE JUSQU'AU DEBUT DE LA DEMI-ONDE DE TENSION SUIVANTE, PUIS TRANSFERANT LE CONTENU DU COMPTEUR SOUS FORME DE SIGNAL DE VITESSE DE ROTATION DANS LA MEMOIRE DE VALEUR FIXE 38 D'OU ELLE EXTRAIT UN SIGNAL DE REGLAGE ASSOCIE A LA VITESSE DE ROTATION MESUREE, ET CONVERTIT CE SIGNAL DE REGLAGE EN UN SIGNAL DE TEMPS QU'ELLE TRANSFERE AU COMMUTATEUR A TEMPS 40 ET APRES L'ECOULEMENT D'UN INTERVALLE DE TEMPS CORRESPONDANT A CE SIGNAL DE TEMPS DELIVRE AU COMMUTATEUR D'ALLUMAGE UN SIGNAL D'ALLUMAGE. C.L'INVENTION S'APPLIQUE NOTAMMENT A UN MOTEUR DE TRONCONNEUSE. A. CIRCUIT DEVICE FOR IGNITION OF INTERNAL COMBUSTION ENGINES. B. DEVICE CHARACTERIZED IN THAT THE CONTROL INSTALLATION 23 INCLUDES A COMPUTER 33, A COUNTER 35, A FIXED-VALUE MEMORY 38, AND A TIMED SWITCH 40, THIS CONTROL INSTALLATION 23 GENERATING AT THE START OF EACH HALF-WAVE OF VOLTAGE A REFERENCE SIGNAL SIMULTANEOUSLY CIRCUITING THE COUNTER 35 WITH A FIXED RATE FREQUENCY UNTIL THE START OF THE NEXT VOLTAGE HALF WAVE, THEN TRANSFERRING THE CONTENT OF THE COUNTER AS A ROTATION SPEED SIGNAL IN THE FIXED VALUE MEMORY 38 FROM WHERE IT EXTRACTS AN ADJUSTMENT SIGNAL ASSOCIATED WITH THE MEASURED ROTATION SPEED, AND CONVERTS THIS ADJUSTMENT SIGNAL INTO A TIME SIGNAL WHICH IT TRANSFERS TO THE TIME SWITCH 40 AND AFTER THE END OF A CORRESPONDING TIME INTERVAL AT THIS TIME SIGNAL DELIVERS TO THE IGNITION SWITCH AN IGNITION SIGNAL. C. THE INVENTION APPLIES IN PARTICULAR TO A CHAINSAW MOTOR.

SPEED LIMITING SYSTEMS FOR WANKEL ENGINES

SPEED LIMITING SYSTEMS FOR INTERNAL COMBUSTION ENGINES

IGNITION ARRANGEMENT FOR INTERNAL COMBUSTION ENGINES

Anti-spinning device for automobiles

SYSTEME D'ALLUMAGE POUR MOTEUR A COMBUSTION INTERNE

L'INVENTION CONCERNE UN SYSTEME D'ALLUMAGE POUR MOTEUR A COMBUSTION INTERNE, COMPORTANT UN CAPTEUR ET UN CIRCUIT A DECHARGE DE CONDENSATEUR. CE SYSTEME COMPORTE UN PREMIER CIRCUIT MONOSTABLE AGENCE POUR DECLENCHER LE CIRCUIT A DECHARGE DE CONDENSATEUR LORS DE SON PASSAGE DE SON ETAT STABLE A SON ETAT INSTABLE, ET UN DEUXIEME CIRCUIT MONOSTABLE APTE A DECLENCHER LE CIRCUIT A DECHARGE DE CONDENSATEUR LORS DE SON PASSAGE DE SON ETAT INSTABLE A SON ETAT STABLE, LA CONSTANTE DE TEMPS DU PREMIER CIRCUIT MONOSTABLE ETANT SENSIBLEMENT EGALE A LA FREQUENCE DE LA DECHARGE DU CIRCUIT D'ALLUMAGE CORRESPONDANT AU REGIME MAXIMAL ADMISSIBLE DU MOTEUR, ET LA CONSTANTE DE TEMPS DU SECOND CIRCUIT MONOSTABLE ETANT EGALE A UNE VALEUR PREDETERMINEE.

PROTECTIVE CIRCUIT RELATING TO THE NUMBER OF REVOLUTIONS, FOR A EMBRAYAGECENTRIFUGE

L'invention se rapporte à un dispositif pour commander la vitesse de rotation d'un moteur à combustion interne dans un outil de travail guidé et manoeuvré à la main, comportant un embrayage centrifuge (3) qui embraye lors du dépassement d'une première vitesse de rotation et est embrayé après avoir atteint une deuxième vitesse de rotation. Pour éviter une sollicitation thermique excessive de l'embrayage, un circuit de protection (17) est activé lorsque la vitesse de rotation actuelle se situe dans une bande de vitesses de rotation entre la première et la deuxième vitesse de rotation et surveille la durée de séjour de la vitesse de rotation actuelle à l'intérieur de ladite bande, pour, en cas de dépassement d'une durée de séjour prescrite, intervenir dans la commande du processus de combustion de façon que la vitesse de rotation quitte ladite bande.

Heat screen for engine spark plugs - protects RF screening and plug lead insulation from exhaust manifold heat

STARTER HAS LAUNCHER PROVIDED With a MOTIONLESS FREE WHEEL IN TRANSLATION

L'invention concerne essentiellement un démarreur (1) pour moteur thermique d'un véhicule automobile comportant: - un moteur électrique ayant un stator (7) et un rotor (3) monté sur un arbre de rotor (5), - un arbre lanceur (15) mobile en translation portant un pignon d'entraînement (13) apte à passer d'une position repos dans laquelle le pignon d'entraînement (13) est dégagé d'un élément rotatif lié au vilebrequin du moteur thermique à une position active dans laquelle le pignon d'entraînement (13) est destiné à entraîner en rotation l'élément rotatif lié au vilebrequin du moteur thermique, - un ensemble (17) réducteur de vitesse intercalé entre l'arbre de rotor (5) et l'arbre lanceur (15), caractérisé en ce qu'il comporte en outre - une roue libre (16) immobile en translation ayant une extrémité d'entrée liée en rotation à l'ensemble (17) réducteur de vitesse et une extrémité de sortie constituée par un arbre d'entraînement (18), - l'arbre lanceur (15) étant monté mobile en translation ...

DIESEL ENGINE, PREDETERMINED BREAKING POINT COMPONENT THEREFOR AND METHOD FOR PREVENTING DAMAGE TO A DIESEL ENGINE

DEVICE IN CHAIN SAW

Engine starting system for vehicle

IGNITION SYSTEM AND METHOD FOR PREVENTING A SPARK DISCHARGE DURING THE ACTIVATION PROCESS

The invention relates to an ignition system and a method for preventing a spark discharge during the activation process of a supply voltage in an ignition system for a spark ignition engine. The method comprises lowering an effective value of a primary ignition coil voltage (Ue) in relation to a supply voltage (U3). The effective value can be lowered either by a general reduction in the primary ignition coil voltage (Ue) and/or by means of high frequency pulsing, such as by means of intermittent activation of the supply voltage (U3). Since the supply voltage (U3) is provided quasi gradually to the primary side of the ignition coil, the average flux change per unit of time decreases, whereby the secondary voltages occurring during the activation process also decrease at the spark gap (2).

Idling rotating speed control system of outboard engine

A rotational speed control system for an engine includes controls for determining whether the throttle is closed beyond a predetermined position, whether the engine is mechanically loaded, and whether the engine rotational speed exceeds a predetermined speed. A control delays the ignition timing of the engine when the throttle is closed beyond the predetermined position, the engine is not mechanically loaded, and the rotational speed exceeds the predetermined speed.

Method for determining a need for changing a spark plug

A method for determining a need for changing a spark plug of a combustion engine, comprising the following steps: monitoring a current flowing through the spark plug, analyzing the current and thereby determine a time interval that is indicative for the time between application of a voltage to the spark plug and formation of an arc discharge between electrodes of the spark plug, creating a signal indicative of the need to change the spark plug if the duration of the determined time interval is outside predefined bounds.

DISCHARGE STOPPING DEVICE

Provided is a discharge stopping device for stopping a spark discharge during discharge, including an ignition plug, an ignition coil, a power source device, a first switch, and a controller which causes a spark discharge to be generated by controlling the switching of the first switch, the discharge stopping device further including a second switch which is disposed in a current circulation path connecting both ends of a primary coil of the ignition coil and switches the current circulation path between connected and disconnected states, wherein the controller includes a re-energization control process unit which switches the first switch to a connected state and re-energizes the primary coil with current during occurrence of the spark discharge, and a circulation control process unit which switches a second switch to a connected state and sets a current circulation path to a connected state during occurrence of the spark discharge. 1. A discharge stopping device for stopping a spark discharge , during discharge , in an ignition device for an internal combustion engine , the discharge stopping device comprising:an ignition plug which has a first electrode and a second electrode opposing each other via a gap, and which ignites a combustible air mixture in a combustion chamber of an internal combustion engine by generating a spark discharge in the gap;an ignition coil including a primary coil and a secondary coil which is magnetically coupled with the primary coil;a power source device which supplies current to the primary coil;a first switch which is disposed between the primary coil and the power source device and which switches the current supplied from the power source device between a connected state and a disconnected state; anda controller which causes the primary coil to be energized with current by switching the first switch to a connected state such that energy for causing the ignition plug to generate the spark discharge sufficient to ignite the ...

Ignition coil current monitoring

The present invention relates to the monitoring of current drawn by an ignition coil for a spark ignition engine, and in particular to circuitry and a method for detecting a malfunction in the charging of an ignition coil or its associated drive circuitry. The electronic circuit comprises: means to measure the voltage of a battery (VB) for charging the coil; means (52) to determine according to the measured battery voltage (VB) a nominal dwell time (TC) for charging fully the coil prior to discharge of the coil; means (32,34) to measure an amount of current drawn by the coil over a time less than the time taken to charge fully the coil; means (36) to extrapolate from the measured current a calculated expected dwell time TD to charge fully the coil; and means to indicate an error condition (44,62,64,66,68) if the difference (44) between the expected (TD) and nominal (TC) dwell times is beyond a predetermined error limit (58,60).

IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE, PARTICULARLY FOR USE IN A CHAIN SAW OR THE LIKE

An ignition system for an internal combustion engine, in particular for use in a chain saw or the like, comprises a magnetically conducting core (10) having at least three legs (11, 12, 13) and supporting a charging winding (21) and a triggering winding (22). A flywheel (14), having at least one magnetic field generating member (15), is adapted to cooperate with the magnetically conducting core (10) to cause, when passing, voltages to be induced in the windings (21, 22). An electronic switch means (27) is adapted to trigger, in response to a trigger pulse generated by the triggering winding (22), the discharge of a first capacitor (26), which has been charged by a voltage generated in the charging winding (21), via the primary (18) of an ignition coil (17) the secondary (19) of which comprises a spark plug (20). The triggering winding (22) is wound about of the legs (11, 12) on the magnetically conducting core (10) whereas the third leg (13) supports the charging winding (21).

IGNITION DEVICE FOR INTERNAL COMBUSTION ENGINE

PURPOSE: To simplify the constitution of an ignition device for 2-cycle internal combustion engine by providing wide and narrow inductor magnetic pole parts in a rotor of signal generator, and converting an output pulse from the signal generator into a square wave signal having the signal width corresponding to output pulse generation spacing so that reverse rotation is detected in the relation of length between respective periods at a high level and a zero level of the signal. CONSTITUTION: A rotor 2A of a signal generator 2 is provided with an inductor magnetic pole part 2a of a large circular arc angle θ1 and another inductor magnetic pole part 2b of a small circular arc angle θ3 on the phase lag side in engine normal rotation. A space of a circular arc angle θ2 is provided between both inductor magnetic pole parts 2a, 2b. In this case, θ0>θ1>θ>θ3 (wherein θ0 is a circular arc angle in the reverse rotational direction) is satisfied. A pulse signal output from the signal generator 2 is ...

FUEL INJECTOR OF INTERNAL COMBUSTION ENGINE

PROBLEM TO BE SOLVED: To provide a fuel injector for an internal combustion engine configured to prevent backfire generation reliably without giving rise to any complication in an engine structure, when an inverse rotation is caused in the engine. SOLUTION: An inverse rotation of the engine is determined based on a signal output from a sensor adapted for detecting a rotation state of the engine (hereinafter, referred to as a crank angle sensor). In the case the inverse rotation of the engine is decided, forcible fuel injection is performed in a cylinder in which an ignition coil is being energized to extinguish a fire. COPYRIGHT: (C)2012,JPO&INPIT ...

AN ENGINE

PURPOSE: A stop switch and a condenser are connected in series between both poles of primary circuit of the ignition coil, and an electro switch apparatus is arranged in parallel with the switch and the condenser, and thus the unexpected engine restarting is prevented. COPYRIGHT: (C)1976,JPO&Japio ...

STOPPING DEVICE FOR INTERNAL COMBUSTION ENGINE

PURPOSE: To inexpensive further surely stop an internal combustion engine by reversing an electric potential for its high and low relation in a pair of electric potential setter circuits following operation of an engine stopping switch thus actuating a switching circuit by a comparator circuit and disabling an ignition circuit from operating. CONSTITUTION: An ignition capacitor C1 is charged with an output of a generating coil 1. The ignition capacitor C1 is discharged by an ignition signal of a pulse coil 2, and high voltage is generated in an ignition coil 3 igniting as park plug 4. Here an ignition circuit connects a switching circuit 5 disabling this ignition circuit from operating. A pair of electric potential setter circuits 6, 7 are connected between terminals of the generating coil 1, while an engine stopping switch 8, reversing an electric potential in its high and low relation, is connected to the one electric potential setter circuit 6 through a voltage regulating circuit 9.

СПОСОБ И СИСТЕМА ДЛЯ ВЫЯВЛЕНИЯ ЗАСОРЕНИЯ СВЕЧ ЗАЖИГАНИЯ

Изобретение относится к способам и системам для выявления засорения свеч зажигания, вызванного накоплением на них топливных присадок. В соответствии с одним из примеров контроллер двигателя может судить о горячем засорении свечей зажигания по температурам отработавших газов, превышающим предполагаемое значение, путем сопоставления повышенной температуры отработавших газов с поздним сгоранием в результате накопления присадок. Коэффициент достоверности выявления горячего засорения свеч зажигания может быть увеличен с учетом данных, касающихся одновременных случаев пропуска зажигания и/или преждевременного зажигания. 2 н. и 13 з.п. ф-лы, 5 ил.

СПОСОБ ОГРАНИЧЕНИЯ ЧАСТОТЫ ВРАЩЕНИЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ (ДВС)

Способ ограничения частоты вращения двигателя внутреннего сгорания, заключающийся в определении заданной частоты и выключении системы зажигания по достижении заданной частоты, отличающийся тем, что выключающий импульс формируют высокоточным цифровым автогенератором, питаемым через диод и резистор любым коротким импульсом, вырабатываемым системой зажигания в момент возникновения искры, при этом интервал времени, в течение которого от начала подачи короткого питающего напряжения формируют первый и единственный выключающий импульс на выходе цифрового генератора, постоянен при любых частотах вращения и соответствует заданной частоте вращения, причем при низких частотах вращения выключающий импульс подают на ключевой элемент - тиристор в момент отсутствия на нем напряжения, а при возрастании частоты до заданной величины подают выключающий импульс на тиристор, к которому приложено напряжение, шунтируя при этом зарядную катушку и выключая систему зажигания.

Engine starting system

Stop switch circuit for an engine

Circuit for stopping an engine

A circuit for stopping an engine having a magneto 22 for generating a high voltage current to an ignition plug 24 via an ignition coil 23 and an ignition circuit 21 connected to the coil 23 for inducing the high voltage current by a transistor TR1 comprises a trigger means 25b for generating a trigger stop signal, a thyristor SCR1 responsive to the trigger signal, a holding capacitor C1 for automatically retriggering the thyristor after a predetermined time delay, a resistor R4 directly connected to the thyristor for short circuiting the ignition circuit 21 when the thyristor is triggered to stop the engine and a zener diode ZD connected to the thyristor in parallel with the resistor for preventing an occurrence of a peak voltage across the resistor which would inhibit the stopping of the engine. The engine may be stopped in response to a low oil level.

DEVICES FOR LIMITING THE SPEED OF REVOLUTION OF AN INTERNAL COMBUSTION ENGINE HAVING SPARK IGNITION

... 1536204 Ignition systems LUMENITION Ltd 1 March 1977 [5 March 1976] 09020/76 Heading F1B The speed of revolution of an I.C. engine having an ignition coil providing spark ignition is limited by means of a semi-conductor breakdown device, e.g. Zener diode 24, and a series connected semiconductor switch, e.g. Darlington pair PD, arranged between the terminal B connected to the primary winding of the ignition coil and earth, and operable, (by biasing the switch to be continuously conductive when the speed exceeds a predetermined value), to limit the voltage developed in the primary winding to a voltage equal to the breakdown voltage of the Zener diode 24 and hence to prevent ignition. As shown, a chain of inverse switching transistors T1 to T4 is controlled by the pulses from the coil on operation of an ignition semi-conductor switch to switch the Darlington pair on and off for normal operation. A delay circuit Cl, Z2 prevents operation of transistor T2 if the ignition pulses are too close ...

IGNITION ENERGY CONTROL METHOD AND SYSTEM

Ignition Distributor COntrol Mechanism for Internal Combustion Engines

... 1,184,867. Timing ignition. FORD MOTOR CO. Ltd. Oct. 4, 1968 [Oct.11, 1967], No.47203/68. Heading F1B. An ignition distributer control mechanism comprises a partition 14 dividing a housing into first and second chambers 16, 18 with the first chamber connected to the interior of the intake manifold and the second chamber connected to the induction passage anterior of the throttle valve, passage means 66 connecting the second chamber to an ignition timing means for the distributer, pressure responsive valve means 26 located within the housing for connecting the second chamber to the intake manifold interior, the pressure responsive valve means 26 making such connection when manifold vacuum exceeds a predetermined maximum and thermally responsive valve means 54, 60 located within the housing for connecting the first chamber to the second chamber when the engine temperature exceeds a predetermined maximum. The lower housing 10 has a projection 20 which fits into the intake manifold (not shown ...

MAGNETO IGNITION SYSTEM

ELECTRONIC IGNITION SYSTEMS FOR INTERNAL COMBUSTION ENGINES

... 1513796 Ignition systems; timing ignition ROBERT BOSCH GmbH 23 May 1975 [13 Nov 1974] 22479/75 Heading F1B An ignition system for an internal combustion engine having means for electronically adjusting the instant of ignition comprises an electrical pulse generator (not shown) which is connectable to the crank-shaft of the internal combustion engine and which is arranged to control an ignition voltage producing stage 7 by way of an electronic device for adjusting the instant of ignition and a speed identifying stage which is controlled by a speed dependent signal and by means of which the ignition angle within a predetermined speed range beyond a fixed maximum speed of the engine is adjustable to zero or to a very small value relative to top dead centre. The storing stage 11 transmits a stored voltage E to a speed threshold stage 12. The speed threshold stage compares the voltage E with a prescribed value and switches a change over switch 6 so that pulses A are switched through at speeds ...

INTERRUPTION OF THE IGNITION WITH BLOCKING OF THE MACHINE

MONITORING CIRCUIT FOR A IN OF THE ZUENDEINRICHTUNG OF A COMBUSTION ENGINE ARRANGEMENT OIL JERK SWITCH

ABORTED TAKE-OFF SYSTEM AND - PROCEDURES FOR A COMBUSTION ENGINE

IGNITION SYSTEM 04JUN73

IGNITION RETARDING DEVICE

IGNITION TIMING AND THROTTLE POSITION CONTROL

MARINE PROPULSION DEVICE INCLUDING IGNITION INTERRUPTION MEANS TO ASSIST TRANSMISSION SHIFTING

MARINE PROPULSION DEVICE INCLUDING IGNITION INTERRUPTION MEANS TO ASSIST TRANSMISSION SHIFTING Shifting of a marine propulsion device transmission drivingly connecting a drive shaft to an internal combustion engine and including a rotatable member operable to shift the transmission between forward drive, reverse drive and neutral positions in response to rotation of a shift lever is assisted by an arrangement including a pin or element pivotally connected to a push-pull assembly operated by a main control and carried by the shift lever. The shift assistance arrangement includes a spring which retains the element in a normal position relative to the shift lever when shift resistance to movement of the transmission from an "in gear" to the neutral position is less than a predetermined level and permits displacement of the element relative to the shift lever from the normal position when the shift resistance is above that predetermined level. The shift assistance arrangement also includes ...

IGNITION INTERRUPT SYSTEM WITH STALL INTERVAL

A spark ignition interrupt system is provided for a marine propulsion internal combustion engine to reduce engine speed and facilitate shifting of a marine propulsion transmission. Spark ignition is terminated in response to a given shift condition until engine speed drops below a given cut-in speed or until completion of the shifting, whichever occurs first. A stall interval is also started in response to the given shift condition. The engine is stalled upon completion of the stall interval if the shifting is not complete, even if engine speed has dropped below the given cutin speed.

IGNITION SYSTEM FOR MAGNETO ENGINE

GLOW PLUG CONTROL CIRCUIT

Apparatus for applying power to at least two heater filaments of two glow plugs in a diesel engine, or to a heater of one glow plug and a ballast load having substantially the same maximum rated voltage as the filament, is disclosed. The power source has a supply voltage greater than the maximum rated voltage of the filament and sufficiently high to cause an overheating temperature capable of burning out the filaments under continuous operation. A switch is operable in a first position to prevent the application of the supply voltage to the apparatus, operable in a second position to apply the supply voltage to the apparatus, and operable in a third position to maintain the condition of the second position and to apply the supply voltage to the apparatus and to a starter for the engine. The apparatus causes the application of full supply voltage to each of the filaments by turning the switch from the first to the second position, and, after a preheat time period which varies as an inverse ...

IDLING ROTATING SPEED CONTROL SYSTEM OF OUTBOARD ENGINE

IDLING ROTATING SPEED CONTROL SYSTEM OF OUTBOARD ENGINE A rotational speed control system for an engine includes controls for determining whether the throttle is closed beyond a predetermined position, whether the engine is mechanically loaded, and whether the engine rotational speed exceeds a predetermined speed. A control delays the ignition timing of the engine when the throttle is closed beyond the predetermined position, the engine is mechanically loaded, and the rotational speed exceeds the predetermined speed.

ENGINE ROTATIONAL NUMBER CONTROLLER

An engine rotational number controller includes an engine rotational number detector 5 for detecting the number of rotation of an engine, a throttle opening detector 7 for detecting a throttle opening of the engine, an ignition device 11, a stepping motor 15, an injector 16, and a control circuit 4 for delaying an ignition timing of the ignition device 11 when the number of rotation of the engine becomes higher than a predetermined upper limit in the case where the throttle number is constant and for opening a sub-throttle valve 14 of a throttle valve 12 by means of the stepping motor 15 to increase an amount of intake air and to increase an amount of injected fuel in the injector 16 when the number of rotation of the engine becomes lower than a predetermined lower limit in the case where the throttle opening is constant.

INTERNAL COMBUSTION ENGINE HAS CATALYTIC CONVERTER

LIMITINGS DEVICE OF TURNS FOR INTERNAL COMBUSTION ENGINES

CONTROL CIRCUIT OF GLOW PLUGS

DETECTOR OF DIRECTION OF ROTATION FOR the SPARK CONTROL Of an ENGINE

Ignition circuit

An ignition circuit for a combustion engine has an ignition coil and a control unit for the coil. The coil and the control unit are included in a common component as an ignition module. The module is supplied with voltage by a generator driven by the engine. A spark plug and the coil form a power circuit which includes a line segment to a reference potential outside the module. A sensor detects data of the engine and the output of the sensor is supplied to the module. The sensor is supplied with voltage via a sensor circuit. The sensor circuit and the power circuit use the line segment as a common connection to the reference potential, so that for a defect of the line segment, a missing connection to the reference potential in the high voltage circuit is recognized via the change of the sensor output signals.

Engine automatic stop/restart device

An engine automatic stop/restart device includes an ignition-prohibition-decision unit that prohibits an ignition for an engine, which is controlled by the ignition-control unit, when a reverse rotation of the engine is detected based on a crank-angle signal; and an ignition-prohibition-release-decision unit that releases an ignition prohibition, after the ignition is prohibited by the ignition-prohibition-decision unit; in which the ignition-prohibition-release-decision unit releases the ignition prohibition when regular rotational signals of the engine, of which count is greater than or equal to a predetermined count, is detected and an engine revolution number is greater than or equal to a predetermined revolution number, after the reverse rotation of the engine is detected, and before a crank is positioned at a compression top dead center of the engine.

Method for Safely Capturing High RPM Thresholds in Spark-Ignition Engines

A method for safely capturing an engine RPM threshold in a spark-ignition internal combustion engines which may exceed the maximum safe unloaded RPM for that engine. Typical engines having a safe RPM high speed redline when coupled to a load, and a reduced RPM redline when decoupled and unloaded, can be set to activate ancillary equipment at a high redline, engine loaded RPM by deriving and processing data from the engine at a low, unloaded reduced RPM speed. The method requires operator reference to an existing OEM or after-market tachometer which enables the user to set a low RPM reference point while the engine is unloaded and running at a slow RPM. Raw data from the latter variable RPM threshold selected by a user is safely captured while the engine is operating unloaded, and a higher RPM threshold is calculated and set from the raw data. The higher RPM threshold may exceed the maximum safe unloaded RPM for said engine. 1. A method for safely setting RPM thresholds for use by a spark-ignition internal combustion engine that is coupled or decoupled to a load , the engine characterized by a maximum safe RPM when loaded , and a reduced maximum safe RPM when unloaded , the method comprising the steps of:a. initiating engine operation;b. setting said engine at a pre-calculated RPM which is slower than said reduced maximum safe RPM;c. capturing RPM data from step “b”;d. converting captured RPM data from step “c” into an RPM threshold that is potentially higher than said maximum safe, loaded RPM threshold by applying a given fraction;e. recording said higher RPM threshold; and,f. when the loaded engine is thereafter run at high speed, triggering any connected external devices in response to occurrence of said high speed RPM threshold.2. The method as defined in wherein:step “1b” includes the step of referencing an engine tachometer to observe RPM;step “1c” includes the steps of initiating a capture mode for capture of RPM data and activating said capture mode to ...

CONTROL SYSTEM AND METHOD FOR MULTI-FUEL GENERATOR ENGINE

A control system and method for a multi-fuel generator engine are mainly applied to multi-fuel generator products. The control system comprises a controller, a first signal input terminal, a second signal input terminal, a third signal input terminal, and an output terminal connected to an ignition device of a generator engine. When the third signal input terminal of the controller receives a generator engine start signal and either the first signal input terminal or the second signal input terminal receives a signal corresponding to an on state of the corresponding valve assembly, the controller controls the ignition device to ignite. According to control system and method, the controller detects signals corresponding to the states of the two fuel valve assemblies to determine whether or not fuels are normally supplied, so that operating instabilities or faults caused by synchronous supply of two fuels to the generator engine are avoided. 1. A control system for a multi-fuel generator engine , comprising:{'b': '1', 'a first fuel valve assembly () which has an on state and an off state and is disposed on a first fuel delivery pipe to control the supply of a first fuel;'}{'b': '2', 'a second fuel valve assembly () which has an on state and an off state and is disposed on a second fuel delivery pipe to control the supply of a second fuel;'}characterized by further comprising:{'b': 3', '1', '2', '5, 'a controller () which has a first signal input terminal connected to the first fuel valve assembly () to acquire a signal corresponding to a current state of the first fuel valve assembly, a second signal input terminal connected to the second fuel valve assembly () to acquire a signal corresponding to a current state of the second fuel valve assembly, a third signal input terminal for receiving a generator engine start and/or stop signal, and an output terminal connected to an ignition device () of a generator engine; and'}{'b': 4', '3, 'a power supply unit () for ...

INTERNAL COMBUSTION ENGINE CONTROL APPARATUS

An internal combustion engine control apparatus includes: an ignition coil including a primary coil and a secondary coil that are magnetically coupled to each other; a first switch element for turning on and off a current to the primary coil; and a spark plug, for igniting an air-fuel mixture in an internal combustion engine by using a spark discharge caused by switching the first switch element from the ON state to the OFF state. The internal combustion engine control apparatus is configured to: determine occurrence of one of an abnormality in a discharge voltage and a misfire of the spark plug, when the calculated time duration in which a voltage of the primary coil after the switching of the first switch element from the ON state to the OFF state is above a predetermined comparison reference voltage does not fall within an allowable range. 1. An internal combustion engine control apparatus , comprising:an ignition coil including a primary coil and a secondary coil that are magnetically coupled to each other;a first switch element for turning on a current to the primary coil when the first switch element is brought into an ON state, and turning off the current to the primary coil when the first switch element is brought into an OFF state;a control computing section for controlling switching between the ON state and the OFF state of the first switch element; anda spark plug, which is to be driven by a current-interruption type ignition circuit, for igniting an air-fuel mixture in an internal combustion engine by using a spark discharge caused by a magnetically induced voltage generated in the secondary coil by switching of the first switch element from the ON state to the OFF state, calculate, as a time duration for determination, a time duration in which a voltage of the primary coil after the switching of the first switch element from the ON state to the OFF state is above a predetermined comparison reference voltage; and', 'determine occurrence of one of an ...

HIGH-FREQUENCY DISCHARGE IGNITION DEVICE

A high-frequency discharge ignition device includes a current supply device which supplies an AC current to a spark discharge path formed in a gap of an ignition plug, a control device which controls the operation of the current supply device, and a voltage detection device which outputs a signal of a section where a magnetic induction voltage of a primary coil generated after a switch element of an ignition coil device is placed in a shutoff state exceeds a predetermined voltage, and the control device determines the timing when the spark discharge path has been formed in the gap of the ignition plug according to an output signal of the voltage detection device and operates the current supply device based on the timing when the spark discharge path has been formed in the gap of the ignition plug to supply the AC current to the spark discharge path. 1. A high-frequency discharge ignition device comprising:an ignition coil device which has an ignition coil unit having a magnetically coupled primary coil and secondary coil, and a switch element conducting the current of the primary coil and shutting off the current after the conduction, when the switch element is placed in a conduction state, flows a current in the primary coil to generate and accumulate a magnetic flux, when the switch element is placed in a shutoff state, generates a predetermined high voltage in the secondary coil, and supplies the generated predetermined high voltage to an ignition plug, which generates a spark discharge between electrodes with a gap to ignite a combustible air-fuel mixture in a combustion chamber of an internal combustion engine, to form a spark discharge path in the gap;a current supply device which supplies a high-frequency AC current to the spark discharge path formed in the gap of the ignition plug;a filter which is provided on the output side of the high-frequency AC current of the current supply device, passes the high-frequency AC current to permit the high-frequency AC ...

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 ...

AN IGNITION SYSTEM AND METHOD CONTROLLING SP ARK IGNITED COMBUSTION ENGINES

The invention relates to an improved ignition system for spark ignited combustion engines. According to the invention the voltage over a coil winding P on the primary side of the ignition coil is regulated to a sufficiently low voltage level during timed periods of the ignition cycle, such that at least one function out of three in total, i.e. prevention of premature spark-on-make, or spark suppression after onset of ignition, or improved frequency response between primary and secondary side of the ignition coil after end of ignition, is obtained. When applied in an inductive ignition system a differential amplifier () may be connected over the primary winding P regulating a control switch CS via a drive unit (). The invention is preferably implemented in ignition systems with ion sense circuitry C,R on the secondary side of the ignition coil, and implementing all three functions. 120-. (canceled)21. An ignition system for a spark ignited combustion engine comprising:a control winding and a secondary winding of an ignition coil magnetically coupled to each other;the secondary winding of the ignition coil having a first terminal connected to a spark plug;wherein the control winding is connected to a control system with at least one predetermined voltage interval reference, wherein the control system controls the voltage across said control winding within the predetermined voltage interval reference such that impedance of the secondary winding of the ignition coil is influenced;a supply voltage source supplying a nominal voltage level to the ignition system; a control switch arranged in series with the control winding controlling flow of current through the control winding from the supply voltage source; anda voltage measuring circuit is connected over the control winding for measuring the voltage applied over the control winding and that a voltage control circuit is connected to the voltage measuring circuit and in response to the measured voltage controls a ...

Engine ignition shutdown module

An engine ignition shutdown module includes a voltage regulator circuit connected to a key switch, and a pair of isolated MOSFET driver circuits connected to the voltage regulator circuit. Each MOSFET driver circuit charges a capacitor while the key switch is in a run position and the interlock switches are closed, and each capacitor discharges through a resistor for a time delay period once the key switch is moved from the run position to an off position or at least one of the interlock switches are opened. A pair of high voltage output MOSFET transistors are switched on while the capacitors discharge and provide an output to a magneto ignition for the time delay period.

METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE DURING UNCONTROLLED COMBUSTION THEREIN

The present invention relates to a method, system, and computer program product for controlling an internal combustion that comprises a cylinder having a space arranged to receive air and fuel, a piston disposed in the cylinder, and a crankcase being in fluid communication with the cylinder. The method comprises determining an uncontrolled behavior due to fluid flow between said crankcase and said cylinder space and combustion of such fluid. The step of determining an uncontrolled behavior comprises the steps of: determining whether a powertrain of the vehicle is disengaged; determining whether the engine speed is increasing; and determining whether said cylinder space is receiving fuel. The method further comprises determining that an uncontrolled behavior is occurring if the conditions that: said powertrain is disengaged, the engine speed is increasing and said cylinder space is not receiving any fuel, are fulfilled. 1. A method for controlling an internal combustion engine of a vehicle , the combustion engine comprising a cylinder having a space arranged to receive air and fuel , a piston disposed in the cylinder , a crankcase being in fluid communication with the cylinder , comprising: determining whether the vehicle is in a safe position;', 'if the vehicle is in a safe position, performing an emergency stop; and', 'if the vehicle is not in a safe position, operating the engine in order to reposition said vehicle by controlling the exhaust brake of the vehicle by intermittently activating and deactivating said exhaust brake., 'determining an uncontrolled behavior due to fluid flow between said crankcase and said cylinder space and combustion of such fluid, and if an uncontrolled behavior has been determined, said method comprising2. A method according to claim 1 , wherein operating the engine by controlling the exhaust brake of the vehicle by intermittently activating and deactivating said exhaust brake is performed by activating said exhaust brake at a certain ...

METHOD FOR CONTROLLING THE OPERATION OF A TWO-STROKE SPARK IGNITION INTERNAL COMBUSTION ENGINE

A method for controlling the operation of a spark ignition internal combustion engine is described. The engine includes: a combustion chamber, an intake duct for placing the combustion chamber in communication with the external, a throttle valve arranged inside the intake duct, a carburetor for introducing fuel into the intake duct to form an air/fuel mixture to be intaken into the combustion chamber, and a spark plug arranged inside the combustion chamber to generate a spark for igniting the combustion of the air/fuel mixture. The method includes: monitoring the opening degree of the throttle valve; monitoring the speed of the engine, preventing the spark plug from generating the spark, if the opening degree of the throttle valve drops below a first opening degree threshold value and the speed of the engine is greater than a first engine speed threshold value. 2100100. The method according to claim 1 , further comprising the step of maintaining the speed (V) of the engine () at a pre-set target value claim 1 , if the speed (V) of the engine () drops below the first engine speed threshold value (VF).3100170. The method according to claim 2 , wherein the speed (V) of the engine () is maintained at the pre-set target value by adjusting the ratio between air and fuel in the mixture formed by the carburetor ().4100. The method according to claim 3 , wherein the ratio between air and fuel in the mixture is adjusted by a control system configured to minimize a difference between the speed (V) of the engine () and the pre-set target value.5235100165. The method according to claim 5 , wherein the instant when the spark plug () generates the spark may be provided in output from a calibration map which receives the speed (V) of the engine () and the opening (G) of the throttle valve () in input.6115170165. The method according to claim 1 , further comprising the steps of monitoring the ionization current in the combustion chamber () and using the ionization current to adjust ...

IGNITION TIMING CONTROL DEVICE AND IGNITION TIMING CONTROL SYSTEM

An ignition timing control device has a knocking detection unit and an ignition timing adjustment unit. In a condition that the operation state of the internal combustion engine is suitable for adjustment of the ignition timing, the ignition timing control device outputs to an igniter an adjusted ignition signal as adjusted (corrected) by an adjusted ignition timing determination process. The ignition timing control device outputs to the igniter a reference ignition signal as it is outputted from an internal combustion engine control unit without adjustment (correction) in a condition that the operation state of the internal combustion engine is not suitable for adjustment of the ignition timing. 1. An ignition timing control device for an internal combustion engine , comprising:a knocking detection unit that detects a knocking state of the internal combustion engine; andan ignition timing adjustment unit that adjusts an ignition timing of the internal combustion engine based on a knocking signal outputted from the knocking detection unit and an ignition timing signal outputted from an external electronic control unit, the knocking signal indicating the knocking state of the internal combustion engine, the ignition timing signal relating to the ignition timing of the internal combustion engine,wherein the ignition timing control device has:a rotation speed-related information determination portion that determines rotation speed-related information based on the ignition timing signal, the rotation speed-related information including at least one of a rotation speed of the internal combustion engine and a rotation speed variation amount of the internal combustion engine; anda signal switching portion that:judges whether the rotation speed-related information determined by the rotation speed-related information determination portion falls within a predetermined adjustment permission range;when the rotation speed-related information falls within the adjustment ...

INTERNAL COMBUSTION ENGINE HAVING A SPARK PLUG

Methods and systems are provided for an internal combustion engine having at least one combustion chamber for burning a fuel mixture and a spark plug for performing spark ignition of the fuel mixture in the combustion chamber. The spark plug includes electrodes for generating an ignition spark at a location within the combustion chamber. Furthermore, the internal combustion engine includes an adjustment device for reducing a distance between the location of the ignition spark and an edge of the combustion chamber in the case of an increase in temperature of the internal combustion engine during operation. 1. A system , comprising:a combustion chamber of an internal combustion engine with a spark plug having electrodes to generate an ignition spark at a location within the combustion chamber; andan adjustment device including an expansion element coupled the spark plug that displaces the spark plug along a longitudinal axis of the spark plug to control a distance between the location of the ignition spark and an edge of the combustion chamber.2. The system of claim 1 , wherein the ignition spark ignites a mixture of air and fuel in the combustion chamber.3. The system of claim 1 , wherein the distance between the edge of the combustion chamber and the location of the spark is decreased when the engine is above a threshold temperature and increased when the engine is below the threshold temperature.4. The system of claim 3 , wherein the expansion element includes a material with a density anomaly.5. The system of claim 1 , wherein the adjustment device includes a running sleeve displaceably arranged in a housing of the internal combustion engine claim 1 , the running sleeve accommodating the spark plug.6. The system of claim 5 , wherein the expansion element is arranged between the running sleeve and the housing of the internal combustion engine.7. The system of claim 1 , wherein a spring element is provided for prestressing the adjustment device into a predefined ...

IGNITION SYSTEM

An ignition system of a combustion engine has a start-up adjustment curve with a maximum rotational speed, an operating adjustment curve and a switch-over device for switching between curves. The start-up adjustment curve is selected in the case of a start-up of the combustion engine. A rotational speed curve is divided into adjacent cycles. The start of the first cycle is the point in time of the second ignition after the start-up and the start of the subsequent cycles is in each case the point in time of ignition at which the rotational speed is less than in the case of the subsequent point in time of ignition. The criterion for switching to the operating adjustment curve is whether the average of the rotational speeds of successive cycles differs by less than a first tolerance value. 18-. (canceled)9. An ignition system of a combustion engine , the ignition system comprising:a start-up adjustment curve including a maximum rotational speed, an operating adjustment curve, and a switch-over device for switching over between the start-up adjustment curve and the operating adjustment curve, and wherein:the start-up adjustment curve is selected on occasion of a start-up of the combustion engine;a rotational speed curve of the combustion engine is divided into adjacent cycles, including a first cycle and a subsequent cycles;a start of the first cycle is a second point in time of ignition after the start-up of the combustion engine and a start of subsequent cycles is in each case a point in time of ignition at which the rotational speed is less than at a following point in time of ignition; anda criterion for switching over into the operating adjustment curve is whether a difference between the averages of the rotational speeds of successive cycles is less than a first tolerance value.10. The ignition system according to claim 9 , wherein the combustion engine is specifically configured for a portable working device.11. The ignition system according to claim 9 , wherein ...

INTERNAL COMBUSTION ENGINES HAVING SUPER KNOCK MITIGATION CONTROLS AND METHODS FOR THEIR OPERATION

According to one or more embodiments presently described, a method of operating an internal combustion engine that includes injecting fuel into a combustion chamber to form an air-fuel mixture, where the combustion chamber includes a cylinder head, cylinder sidewalls, and a piston that reciprocates within the cylinder sidewalls. The method may also include detecting pre-ignition of the air-fuel mixture during a detected intake or compression stroke of the piston, determining that a super knock condition could occur, and mitigating formation of a super knock condition by deploying a super knock countermeasure within the detected compression stroke. 1. A method of operating an internal combustion engine , the method comprising:injecting fuel into a combustion chamber to form an air-fuel mixture, the combustion chamber comprising a cylinder head, cylinder sidewalls, and a piston that reciprocates within the cylinder sidewalls;detecting pre-ignition of the air-fuel mixture during a detected intake or compression stroke of the piston;determining that the internal combustion engine is operating at a condition at which a super knock condition could occur; andmitigating formation of a super knock condition by deploying a super knock countermeasure within the detected compression stroke.2. The method of claim 1 , wherein the super knock countermeasure comprises advancing spark timing.3. The method of claim 2 , wherein spark timing is advanced to a set point at which the air-fuel mixture is burned prior to the cylinder reaching top dead center.4. The method of claim 1 , wherein the super knock countermeasure comprises opening an exhaust valve to pass burned and unburned air-fuel mixture from within the combustion chamber to outside of the combustion chamber.5. The method of claim 4 , wherein the super knock countermeasure further comprises interrupting a spark plug that is positioned within the combustion chamber from normal discharging during the detected compression stroke. ...

CONTROLLING A LIGHT-DUTY COMBUSTION ENGINE

In at least some implementations, a method of maintaining an engine speed below a first threshold, includes: (a) determining an engine speed; (b) comparing the engine speed to a second threshold that is less than the first threshold; (c) allowing an engine ignition event to occur during a subsequent engine cycle if the engine speed is less than the second threshold; and (d) skipping at least one subsequent engine ignition event if the engine speed is greater than the second threshold. In at least some implementations, the second threshold is less than the first threshold by a maximum acceleration of the engine after one ignition event so that an ignition event when the engine speed is less than the second threshold does not cause the engine speed to increase above the first threshold. 1. A method of maintaining an engine speed below a first threshold , comprising:(a) determining an engine speed;(b) comparing the engine speed to a second threshold that is less than the first threshold;(c) allowing an engine ignition event to occur during a subsequent engine cycle if the engine speed is less than the second threshold; and(d) skipping at least one subsequent engine ignition event if the engine speed is greater than the second threshold.2. The method of wherein the second threshold is less than the first threshold by a maximum acceleration of the engine after one ignition event so that an ignition event when the engine speed is less than the second threshold does not cause the engine speed to increase above the first threshold.3. The method of wherein the second threshold is at least 1 claim 2 ,000 rpm lower than the first threshold.4. The method of wherein step (d) includes skipping consecutive ignition events to allow the engine speed to decrease during consecutive engine cycles.5. The method of which also comprises determining when the user actuates a throttle valve associated with the engine and wherein the method terminates when throttle valve actuation is detected ...

DUAL COIL IGNITION SYSTEM

A method of responding to a detected blowout in a coil ignition system is provided in this disclosure. The method includes receiving a characteristic regarding operation of a coil ignition system; determining a blowout condition exists for the coil ignition system based on the characteristic; and providing a command to the coil ignition system based on the determination that the blowout condition exists, wherein the command is structured to reduce a residual charge amount in the coil ignition system. 1. An apparatus , comprising:a coil signal generator module structured to alternate a leading coil in a multi-coil ignition system; anda charging module structured to determine whether a coil of the multi-coil ignition system is operational based on operation data regarding the coil relative to an operational threshold when the coil is the leading coil.2. The apparatus of claim 1 , wherein the operational threshold is a time threshold for reaching a charging current threshold and the operation data is a time duration to reach the charging current threshold.3. The apparatus of claim 2 , wherein the charging module is structured to determine the coil is non-operational based on the time duration being greater than or equal to the time threshold.4. The apparatus of claim 2 , wherein the charging module is structured to determine the coil is operational based on the time duration being less than the time threshold.5. The apparatus of claim 2 , wherein the charging current threshold includes at least one of a voltage and a current suitable for causing a spark from an ignitor of the multi-coil ignition system.6. The apparatus of claim 1 , wherein the coil signal generator module is structured to alternate the leading coil each engine cycle.7. The apparatus of claim 1 , wherein the coil ignition system includes a first set of primary and secondary coils claim 1 , a second set of primary and secondary coils claim 1 , and an ignitor electrically coupled to each of the first and ...

Electronic ignition system for a generator engine

A standby generator includes an alternator to produce electricity for distribution to an electrical system, and an air-cooled internal combustion engine driving the alternator. The air-cooled internal combustion engine includes one or more cylinders, one or more spark plugs each configured to initiate combustion in a corresponding cylinder, and one or more ignition coils each coupled to a respective spark plug of the one or more spark plugs to provide a voltage to the respective spark plug. The standby generator also includes a battery system electrically coupled to the one or more ignition coils to provide power thereto, and a digital ignition module wiring the battery system to each of the one or more ignition coils to control operation of the one or more spark plugs.

METHOD FOR DETERMINING A NEED FOR CHANGING A SPARK PLUG

Disclosed is a method for determining a need for changing a spark plug of a combustion engine, comprising the following steps: monitoring a current flowing through the spark plug, analyzing the current and thereby determine a time interval that is indicative for the time between application of a voltage to the spark plug and formation of an arc discharge between electrodes of the spark plug, creating a signal indicative of the need to change the spark plug if the duration of the determined time interval is outside predefined bounds. 1. A method for determining a need for changing a spark plug of a combustion engine , comprising:monitoring a current flowing through the spark plug;analyzing the current and thereby determining a time interval indicative of the elapsed time between application of a voltage to the spark plug and formation of an arc discharge between electrodes of the spark plug; andcreating a signal indicating a need to change the spark plug if the duration of the determined time interval is larger than a predefined threshold value.2. Method according to claim 1 , wherein the voltage is supplied to the spark plug by switching off a primary voltage that is applied to a transformer claim 1 , the transformer providing a secondary voltage to the spark plug.3. Method according to claim 2 , wherein the switching off of the primary voltage defines the start of the time interval.4. Method according to claim 1 , wherein the start of the time interval is defined by the current surpassing a predefined threshold value.5. Method according to claim 1 , wherein the end of the time interval is defined by the current surpassing a predefined end threshold.6. Method according to claim 1 , wherein the end of the time interval is defined by a maximum of a time derivative of the current.7. Method according to claim 1 , wherein the end of the time interval is defined by a global maximum of a time derivative of the current8. Method according to claim 1 , wherein the end of the ...

Patent JPH0114423B2

コンデンサ放電式内燃機関点火装置

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Engine stopping circuit in ignition device for internal combustion engine

２サイクル内燃機関用無接点点火装置

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Igniter for internal combustion engine

Internal combustion engine ignition device

Fuel supplying device for marine propulsion unit

A fuel supplying device for a marine propulsion unit wherein the engine is slowed in response to an abnormal condition by interrupting the ignition. In order to prevent excess fuel consumption and preclude backfiring, the fuel supply is also discontinued when the ignition system is interrupted.

Patent JPS6138355B2

Reverse revolution preventing device for internal- combustion engine

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Patent JPS594549B2

Patent JPS6156422B2

Patent JPS6332967B2

An engine

Ignition device for internal-combustion engine

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Method of protecting a starting in the reverse rotation

엔진의 역회전 시동 방지방법이 개시된다. 개시된 엔진의 역회전 시동 방지방법은, (a) 엔진의 시동 판정 및 기통 판별을 위한 CAS신호가 입력되었는지 그 여부를 판단하는 단계와; (b) 상기 단계 (a)에서, 상기 CAS신호가 입력되었다고 판단되면, 엔진 시동조건을 판정하는 단계와; (c) 상기 단계 (b)에서 엔진 시동조건 판정이 이루어지면 엔진을 시동하기 위한 시동 연료를 분사하고, 동시에 이그니션 코일을 점화시키는 단계와; (d) 엔진 회전 판정수(Rn)가 0인지를 판단하는 단계와; (e) 상기 단계 (d)에서 상기 엔진 회전 판정수(Rn)가 0인 경우에는, 기통을 판정하는 단계와; (f) 상기 단계 (e)에서 연료를 분사한 후, 이그니션 코일을 점화시키는 단계와; (g) 엔진이 정지되었는지 판단하고, 상기 엔진이 정지되었으면 플로를 종료하는 단계;를 포함하는 것을 그 특징으로 한다. 본 발명에 따르면, 역회전 시동에 따른 엔진의 파손을 막을 수 있는 이점이 있다. Disclosed is a method for preventing reverse rotation of an engine. The disclosed method for preventing reverse rotation of an engine includes: (a) determining whether a CAS signal for starting an engine and determining a cylinder is input; (b) in step (a), if it is determined that the CAS signal is input, determining an engine starting condition; (c) injecting a starting fuel for starting the engine when the engine starting condition is determined in step (b), and simultaneously igniting the ignition coil; (d) determining whether the engine rotation determination number Rn is zero; (e) determining the cylinder when the engine rotation determination number Rn is 0 in step (d); (f) igniting the ignition coil after injecting fuel in step (e); (g) determining whether the engine is stopped, and ending the flow if the engine is stopped. According to the present invention, there is an advantage that can prevent damage to the engine due to the reverse rotation start.

Warming control method for engine outboard engine and device

(57)【要約】 （修正有） 【課題】 エンジンの個体差に関係なく全てのエンジン でエンジンの始動性とクラッチの操作性との両方のバラ ンスが採れた安定した効果が得られる船外機用エンジン における暖機制御方法及び装置を提供すること。 【解決手段】 船外機用エンジンにおける暖機制御方法 は、船外機用エンジンの運転状態を検出し、該エンジン の運転状態に基づいて点火時期を決定する点火時期制御 方法において、冷却水温度及びスロットル開度からエン ジンの低温アイドル回転状態を検出し、エンジンが低温 アイドル回転状態にある間は、実際のエンジン回転数が 予め設定した目標エンジン回転数に沿うように前記点火 時期を進角側又は遅角側に補正する。

Stopping circuit for conventional internal-combustion engine

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

INVERTER GENERATOR

1. Инверторный генератор, содержащий блок генератора, приводимый от двигателя внутреннего сгорания и генерирующий переменный ток; конвертер, соединенный с блоком генератора и преобразующий переменный ток в постоянный; инвертор, соединенный с конвертером и преобразующий постоянный ток в переменный, снабженный ключевыми элементами для питания электрической нагрузки; управляющее устройство инвертора, содержащее микрокомпьютер и выполненное с возможностью управления ключевыми элементами с помощью ШИМ-сигнала, генерируемого с использованием опорного синусоидального сигнала, имеющего форму волны требуемого выходного напряжения, а также несущего сигнала, и с возможностью преобразования переменного тока, преобразованного в инверторе, в переменный ток заданной частоты, модуль зажигания для осуществления зажигания в двигателе, и устройство управления зажиганием для управления работой модуля зажигания, отличающейся тем, что содержит измеритель частоты вращения двигателя для измерения частоты вращения двигателя; устройство определения превышения допустимого числа оборотов, выполненное с возможностью определения, на основании измеренной частоты вращения двигателя, находится ли двигатель в состоянии превышения числа оборотов, причем управляющее устройство инвертора посылает команду на устройство управления зажиганием для выключения зажигания с целью останова двигателя, когда двигатель находится в состоянии превышения числа оборотов. ! 2. Инверторный генератор по п.1, отличающийся тем, что устройство определения превышения допустимого числа оборотов выполнено с возможностью подсчета числа раз, для к� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2009 128 331 (13) A (51) МПК F02D 41/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (71) Заявитель(и): ХОНДА МОТОР КО., ЛТД. (JP) (21)(22) Заявка: 2009128331/06, 23.07.2009 Приоритет(ы): (30) Конвенционный приоритет: 25.07.2008 JP JP2008-191784 R U (57) Формула изобретения 1. ...

Variable ignition dwell angle ahead of tdc

Изобретение относится к способам и средствам регулирования числа оборотов в двухтактном двигателе внутреннего сгорания. Технический результат заключается в обеспечении способа регулирования числа оборотов в двухтактном двигателе внутреннего сгорания для повышения его надёжности и долговечности. Предложено устройство изменения угла опережения зажигания относительно положения верхней мертвой точки. Для данного числа оборотов двигателя угол опережения зажигания может быть постадийно регулируемым. При чередовании между двумя углами опережения зажигания могут быть использованы одна или несколько стадий. При превышении числом оборотов двигателя порогового числа оборотов двигателя может быть произведена регулировка углов опережения зажигания. 2 н. и 15 з.п. ф-лы, 3 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 523 020 C2 (51) МПК F02P 5/15 (2006.01) F02P 11/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012137199/07, 02.02.2010 (24) Дата начала отсчета срока действия патента: 02.02.2010 (72) Автор(ы): ФОНГ Карл-Йохан (SE), ГУСТАФССОН Реине (SE) (73) Патентообладатель(и): ХУСКВАРНА АБ (SE) (43) Дата публикации заявки: 10.03.2014 Бюл. № 7 R U Приоритет(ы): (22) Дата подачи заявки: 02.02.2010 (45) Опубликовано: 20.07.2014 Бюл. № 20 20070125341 A1, 07.06.2007. US 20080163851 A1, 10.07.2008. US 4075989 A, 28.02.1978. US 4572150 A, 25.02.1986. US 20060287796 A1, 21.12.2006 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 03.09.2012 2 5 2 3 0 2 0 (56) Список документов, цитированных в отчете о поиске: US 20090101105 A1, 23.04.2009. US 2 5 2 3 0 2 0 R U SE 2010/050109 (02.02.2010) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: WO 2011/096852 (11.08.2011) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) ПЕРЕМЕННЫЙ УГОЛ ОПЕРЕЖЕНИЯ ЗАЖИГАНИЯ ПЕРЕД ПОЛОЖЕНИЕМ ВЕРХНЕЙ МЕРТВОЙ ТОЧКИ (ВМТ) (57) Реферат: Изобретение относится ...

Internal combustion engines having super knock mitigation controls and methods for their operation

According to one or more embodiments presently described, a method of operating an internal combustion engine that includes injecting fuel into a combustion chamber to form an air-fuel mixture, where the combustion chamber includes a cylinder head, cylinder sidewalls, and a piston that reciprocates within the cylinder sidewalls. The method may also include detecting pre-ignition of the air-fuel mixture during a detected intake or compression stroke of the piston, determining that a super knock condition could occur, and mitigating formation of a super knock condition by deploying a super knock countermeasure within the detected compression stroke.

Engine over-rotation preventing device

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Ignition time controller for engine

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

For determining to need the method for changing sparking plug for internal combustion engine

一种用于确定需要更换内燃机火花塞的方法，包括以下步骤：监测流过火花塞的电流；分析所述电流，从而确定指示火花塞施加电压与火花塞电极间形成电弧放电之间的时间间隔；如果所确定的时间间隔的持续时间大于预定义的阈值，产生需要更换火花塞的指示信号。

Semiconductor device

An object of the present invention is to provide a semiconductor device in which the collector current Ic of the output stage IGBT does not oscillate in the operating processes of a self shut down circuit and a current control circuit, and thus the ignition plug is prevented from erroneous ignition and the size of the device is minimized. A semiconductor device for ignition performing a current control function and a self shut down function comprises a pulse generating circuit 23, a switching circuit 22, and a current source circuit 21, the three circuits together generating pulse current that discharges a capacitor 44 in the self shut down process. This construction suppresses oscillation of collector current Ic of the output stage IGBT 4 in the operating processes of the current control circuit 3 and the self shut down circuit 17, thus preventing the ignition plug 11 from erroneous ignition. In addition, the discharge of the capacitor 44 in a pulsed mode allows down-sizing of the capacitor 44, which contributes to minimization of the semiconductor device.

Method and device for limiting the speed of a motor vehicle equipped with an internal combustion engine to a predetermined critical speed.

CIRCUIT DEVICE FOR IGNITION OF INTERNAL COMBUSTION ENGINES

ROTATION SPEED DETECTION METHOD IN PARTICULAR FOR DETECTION OF COMBUSTION RATES OF AN INTERNAL COMBUSTION ENGINE

Procédé de détection des ratés de combustion d'un moteur à combustion interne caractérisé en ce qu'en mode de fonctionnement sans ratés, à partir des mesures d'irrégularité de fonctionnement associées à chaque cylindre, on forme des valeurs de correction pour chaque cylindre de manière que les mesures d'irrégularité de fonctionnement individuelles à chaque cylindre, combinées aux valeurs de correction soient égales entre elles.

Controller for regulating speed of outboard motor

The controller has a detector (5) for the speed of rotation of the engine, and a detector (7) sensing the opening of the engine throttle. A control system is linked to the ignition (11), a stepping motor (15) controlling an auxiliary fuel valve (14) and an injector (16). The control circuit (4) delays the ignition control system when the speed exceeds a certain threshold. The device also controls the opening of the auxiliary fuel valve (14) to increase the quantity of air admitted and to increase the quantity of fuel injected when the speed falls below a predetermined threshold.

Speed Limiter For Internal Combustion Engines

An engine speed limiter is disclosed in which the ignition primary winding is shorted to limit engine speed whenever an ignition pulse is received by a switch at the same time that a switch is gated on by a positive output pulse from a timing circuit. A signal conditioning circuit receives a positive-going pulse from the ignition primary winding and outputs a conditioned signal to the timer to begin the timer's positive output signal. The speed limiter is suitable to be retrofit onto existing ignition systems.

Device for controlling the number of revolutions of an outboard motor.

ROTATION SPEED LIMITER FOR INTERNAL COMBUSTION ENGINES

a. L'invention concerne un dispositif limiteur de vitesse de rotation pour moteurs à combustion interne, comportant un étage détecteur de vitesse de rotation produisant des signaux utilisés pour supprimer des signaux de commande de l'installation d'allumage. b. Ce dispositif est caractérisé en ce qu'un étage réducteur de fréquence est associé à l'étage détecteur de vitesse de rotation pour supprimer des impulsions d'allumage à intervalles réguliers au-delà d'une vitesse limite. c. L'invention est applicable aux moteurs à combustion interne.

METHOD FOR PROCESSING POSITION DATA OF AN ENGINE BY A MULTI-HEART COMPUTER

METHOD FOR PROCESSING POSITION DATA OF AN ENGINE BY A MULTI-HEART COMPUTER

La présente invention a pour objet un procédé de traitement de données de position d'un moteur de véhicule automobile, mis en œuvre par un calculateur électronique multi-cœurs comprenant : • un module logiciel de production de données de position angulaire du moteur, et • au moins un module logiciel de pilotage du moteur en fonction des données de position angulaire, le procédé comprenant une étape de désactivation de chaque module de pilotage par le module de production de données de position angulaire, suivie d'une étape d'activation (200) de chaque module de pilotage par le module de production, caractérisé en ce que : • au cours l'étape de désactivation, le module de production envoie à chaque module de pilotage une commande de désactivation, puis une requête de confirmation que chaque module de pilotage est désactivé, et • l'étape d'activation des modules de pilotage n'est mise en œuvre que lorsque la désactivation de tous les modules de pilotage a été confirmée au module de production. The present invention relates to a method for processing position data of a motor vehicle engine, implemented by a multi-core electronic computer comprising: a software module for producing angular position data of the engine, and at least one engine control software module according to the angular position data, the method comprising a step of deactivating each control module by the angular position data generation module, followed by an activation step (200). ) of each control module by the production module, characterized in that: • during the deactivation step, the production module sends each control module a deactivation command, then a confirmation request that each module of control is deactivated, and • the activation step of the control modules is implemented only when the deactivation of all the control modules e has been confirmed in the production module.

METHOD AND DEVICE FOR LIMITING THE RPM OF AN ELECTRONICALLY IGNITED INTERNAL COMBUSTION ENGINE

CE DISPOSITIF DE LIMITATION DE REGIME EST ASSOCIE A UN DISPOSITIF ELECTRONIQUE D'ALLUMAGE COMPRENANT AU MOINS UN ORGANE DE STOCKAGE D'ENERGIE 21 NORMALEMENT CHARGE AU MOINS JUSQU'A L'EMMAGASINAGE D'UNE ENERGIE NOMINALE, DES MOYENS 22, 23 D'APPLICATION DE LADITE ENERGIE A UN ORGANE D'ALLUMAGE ET DES MOYENS ELECTRONIQUES 14, 25, 26 DE GENERATION DU TEMPS DE CHARGE DE L'ORGANE DE STOCKAGE D'ENERGIE. LE DISPOSITIF DE LIMITATION DE REGIME PROPREMENT DIT COMPREND DES MOYENS 10, 13 DE DETECTION DU REGIME MAXIMAL AUTORISE DU MOTEUR ET UN CIRCUIT ELECTRONIQUE 50 PLACE PAR LES MOYENS DE DETECTION DANS UN PREMIER ETAT INACTIF LORSQUE LE REGIME MOTEUR EST INFERIEUR AU REGIME MAXIMAL ET DANS UN SECOND ETAT ACTIF OU IL COMMANDE LA GENERATION PAR LESDITS MOYENS 14, 25, 26 D'UN TEMPS OU ANGLE DE CHARGE DE L'ORGANE DE STOCKAGE D'ENERGIE INFERIEUR AU TEMPS OU ANGLE NECESSAIRE A L'OBTENTION DE LADITE ENERGIE NOMINALE LORSQUE LE REGIME MOTEUR ATTEINT LE REGIME MAXIMAL AUTORISE. THIS RPM LIMITATION DEVICE IS ASSOCIATED WITH AN ELECTRONIC IGNITION DEVICE INCLUDING AT LEAST ONE ENERGY STORAGE 21 NORMALLY CHARGED AT LEAST UNTIL NOMINAL ENERGY STORAGE, MEANS 22, 23 OF APPLICATION OF THE SAID ENERGY HAS AN IGNITION UNIT AND ELECTRONIC MEANS 14, 25, 26 FOR GENERATING THE CHARGING TIME OF THE ENERGY STORAGE UNIT. THE SPEED LIMITATION DEVICE PROPERLY CONSISTS OF MEANS 10, 13 FOR DETECTION OF THE MAXIMUM AUTHORIZED SPEED OF THE ENGINE AND AN ELECTRONIC CIRCUIT 50 PLACED BY THE MEANS OF DETECTION IN A FIRST INACTIVE STATE WHEN THE ENGINE SPEED IS LOWER THAN MAXIMUM SPEED AND IN ONE SECOND ACTIVE STATE OR IT COMMANDS THE GENERATION BY THE SAID MEANS 14, 25, 26 OF A TIME OR CHARGE ANGLE OF THE ENERGY STORAGE BODY LESS THAN THE TIME OR ANGLE NECESSARY TO OBTAIN THE SAID NOMINAL ENERGY WHEN THE REGIME ENGINE REACHES THE MAXIMUM AUTHORIZED SPEED.

DEVICE TO FACILITATE QUICK GEAR CHANGE ON MOTOR VEHICLES

Ce dispositif est destiné à faciliter le changement de rapport rapide sur des véhicules à moteur, notamment des motocyclettes, où l'allumage du mélange dans le moteur à combustion interne s'effectue au moyen d'un système d'allumage extérieur, et qui possèdent un mécanisme de transmission à plusieurs rapports, dont la sélection s'effectue à l'aide d'un dispositif de changement de vitesse. Dans le dispositif selon l'invention, un contacteur prévu dans le dispositif de changement de vitesse déclenche, au début de chaque changement de rapport, un étage de temporisation relié au système d'allumage et qui rend ce dernier inopérant pendant une durée prédéterminée. Le mécanisme de transmission est ainsi soulagé pendant le passage d'un rapport à un autre. This device is intended to facilitate the rapid change of ratio on motor vehicles, in particular motorcycles, where the ignition of the mixture in the internal combustion engine is carried out by means of an external ignition system, and which have a transmission mechanism with several ratios, the selection of which is carried out using a gear change device. In the device according to the invention, a switch provided in the gear change device triggers, at the start of each gear change, a timing stage connected to the ignition system and which renders the latter inoperative for a predetermined period. The transmission mechanism is thus relieved during the change from one gear to another.

IMPROVEMENTS TO SELF-CONTROL DEVICES TO ISOLATE THE RPM LIMITER FOR THE IGNITION SYSTEM OF AN INTERNAL COMBUSTION ENGINE

LA PRESENTE INVENTION CONCERNE UN DISPOSITIF D'AUTOCONTROLE POUR ISOLER LE LIMITEUR DE TOURS DU SYSTEME D'ALLUMAGE D'UN MOTEUR A COMBUSTION INTERNE AYANT UN ALLUMAGE PAR ETINCELLE. SELON L'INVENTION, IL COMPREND UN MOYEN D9-D11 POUR DETECTER QUE L'ETAGE DE SORTIE DU LIMITEUR DE TOURS ABSORBE LES IMPULSIONS D'ALLUMAGE A UNE VITESSE INFERIEURE A LA VITESSE LIMITE ET PREDETERMINEE; ET UN MOYEN PD2, PD3, F, T13 POUR ISOLER LE LIMITEUR DE TOURS DU CIRCUIT D'ALLUMAGE DANS LE CAS OU L'ABSORPTION A LIEU A UNE VITESSE INFERIEURE A LA VITESSE LIMITE. L'INVENTION S'APPLIQUE NOTAMMENT AUX VEHICULES MILITAIRES. THE PRESENT INVENTION CONCERNS A SELF-CONTROLLING DEVICE FOR INSULATING THE RPM LIMITER OF THE IGNITION SYSTEM OF AN INTERNAL COMBUSTION ENGINE HAVING SPARK IGNITION. ACCORDING TO THE INVENTION, IT INCLUDES A D9-D11 MEANS FOR DETECTING THAT THE OUTPUT STAGE OF THE REV LIMITER IS ABSORBING IGNITION PULSES AT A SPEED BELOW THE LIMIT AND PREDETERMINED SPEED; AND A MEANS PD2, PD3, F, T13 TO ISOLATE THE REVOLUTION LIMITER OF THE IGNITION CIRCUIT IN THE CASE WHERE ABSORPTION TAKES PLACE AT A SPEED BELOW THE SPEED LIMIT. THE INVENTION APPLIES IN PARTICULAR TO MILITARY VEHICLES.

Processing circuit for ignition coil pulse signal - comprises flip=flop producing square wave output of fixed pulse length

The signal processing circuit receives the noisy ignition coil signal and from it derives a clear signal which may be used to supply an electronic rev counter, and electronic carburation mixture control, or an excess speed warning device. The circuit used comprises a D-type flip-flop whose clock input is connected to the ignition coil. The signal input is biased to a fixed constant level. The output signal from the flip-flop is connected to the return-to-zero input via a delay element. The components of the circuit are formed on a single micro-chip of semiconductor substrate, and fitted into a standard box to minimise production cost. The circuit produces a square wave output with a set pulse duration instead of the pulse of higher frequency produced by the ignition coil.

IGNITION CIRCUIT FOR INTERNAL COMBUSTION ENGINE

Circuit d'allumage pour moteur à combustion interne à allumage par étincelles utilisant une bobine d'allumage. Le circuit d'allumage comprend un comparateur 14 pour détecter le courant passant dans l'enroulement primaire 4 de la bobine d'allumage et pour produire un signal quand le courant atteint un niveau prédéterminé, et un moyen 16, 18, 20 pour faire commuter un transistor 2 en réponse audit signal de façon à couper le courant dans l'enroulement primaire et à produire une étincelle. Application au domaine des moteurs. (CF DESSIN DANS BOPI) Ignition circuit for spark ignition internal combustion engine using an ignition coil. The ignition circuit comprises a comparator 14 for detecting the current flowing in the primary winding 4 of the ignition coil and for producing a signal when the current reaches a predetermined level, and means 16, 18, 20 for switching a transistor 2 in response to said signal so as to cut off the current in the primary winding and to produce a spark. Application to the field of motors. (CF DRAWING IN BOPI)

Lubrication of two stroke engine driving generator - using excitation voltage to control oil pump speed

The system is applicable to two-stroke engines driving electric generators which are supplied with the lubricating oil mixed with the fuel. The engine (1) drives the generator (2) with a voltage regulator (3) controlling the voltage of the exciter coil (4). The voltage, which is proportional to the power output of the engine and therefore proportional to the fuel consumption, is supplied across a rheostat (16) to an electric motor (15) which drives the lubricating oil pump (12). This method of controlling the speed of the oil pump (12) ensures its speed is approximately proportional to the power output of the engine and therefore to its fuel consumption.

Inverter generator

FIELD: engines and pumps. SUBSTANCE: inverter generator includes generator unit (14), ignition module (12e), ignition control device (44), converter (20), inverter (26), central processor (40), ignition module (12e), and engine speed metre (14b4). Central processor (40) is the device for determining allowable excess rpm and at the same time the control device of inverter. Generator unit (14) is brought into action by ICE and generates alternating current. Converter (20) is connected to generator unit (14) and inverter (26). Inverter (26) is equipped with key elements. Control device of inverter controls the key elements by means of PWM signal. PWM signal is generated by using reference sine signal, as well as carrier signal with possibility of conversion of alternating current to current of the specified frequency. Ignition control device (44) controls ignition module (12e). Device for determining allowable excess rpm determines whether ICE is in excess rpm state or not. When rpm of ICE is exceeded, control device of inverter sends the command to ignition control device (44) to stop ICE. Inverter control device can be actuated in each control cycle. Device for determining allowable excess rpm counts the number of times when engine speed is equal to the first threshold value or exceeds it. Ignition control device (44) can contain analogue circuit. EFFECT: possible protection of ICE against repeated excess rpm is provided. 4 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 415 508 (13) C1 (51) МПК H02P 9/04 (2006.01) F02D 11/10 (2006.01) F02P 9/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009128331/06, 23.07.2009 (24) Дата начала отсчета срока действия патента: 23.07.2009 (72) Автор(ы): ХАШИМОТО Сёдзи (JP), МУРОНОИ Кадзуфуми (JP) R U (73) Патентообладатель(и): ХОНДА МОТОР КО., ЛТД. (JP) Приоритет(ы): (30) Конвенционный приоритет: 25.07.2008 JP JP2008-191784 (45) ...

Engine control device

本发明涉及发动机控制装置。发动机控制装置包括电子控制单元。电子控制单元被构造成：通过在从对发动机的每个气缸的点火线圈的通电开始起经过预定时段之后切断通电而利用每个气缸的火花塞执行火花放电；当停止发动机的运转时，在对发动机的燃料供给停止之后，停止由每个气缸的火花塞引起的火花放电；并且在对所述发动机的燃料供给停止之后，控制所述火花塞以便使得从在曲轴的转速逐渐降低并且所述曲轴的转速达到预先设定的阈值或更小后的气缸所述火花塞引起的火花放电停止。

Engine ingition device

내용 없음. No content.

Patent FR2056130A5

IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINE

L'INVENTION CONCERNE UN SYSTEME D'ALLUMAGE POUR MOTEUR A COMBUSTION INTERNE, COMPORTANT UN CAPTEUR ET UN CIRCUIT A DECHARGE DE CONDENSATEUR. CE SYSTEME COMPORTE UN PREMIER CIRCUIT MONOSTABLE AGENCE POUR DECLENCHER LE CIRCUIT A DECHARGE DE CONDENSATEUR LORS DE SON PASSAGE DE SON ETAT STABLE A SON ETAT INSTABLE, ET UN DEUXIEME CIRCUIT MONOSTABLE APTE A DECLENCHER LE CIRCUIT A DECHARGE DE CONDENSATEUR LORS DE SON PASSAGE DE SON ETAT INSTABLE A SON ETAT STABLE, LA CONSTANTE DE TEMPS DU PREMIER CIRCUIT MONOSTABLE ETANT SENSIBLEMENT EGALE A LA FREQUENCE DE LA DECHARGE DU CIRCUIT D'ALLUMAGE CORRESPONDANT AU REGIME MAXIMAL ADMISSIBLE DU MOTEUR, ET LA CONSTANTE DE TEMPS DU SECOND CIRCUIT MONOSTABLE ETANT EGALE A UNE VALEUR PREDETERMINEE. THE INVENTION CONCERNS AN IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE, INCLUDING A SENSOR AND A CONDENSER DISCHARGE CIRCUIT. THIS SYSTEM INCLUDES A FIRST MONOSTABLE CIRCUIT AGENCY TO TRIGGER THE CONDENSER DISCHARGE CIRCUIT WHEN ITS GOING FROM ITS STABLE STATE TO ITS UNSTABLE STATE, AND A SECOND MONOSTABLE CIRCUIT SUITABLE TO TRIGGER THE CIRCUIT TO DISCHARGE THE CONDENSER AND SOUND PASSENGER FROM ITS STATE. UNSTABLE IN ITS STABLE STATE, THE TIME CONSTANT OF THE FIRST MONOSTABLE CIRCUIT BEING SENSITIVELY EQUAL TO THE DISCHARGE FREQUENCY OF THE IGNITION CIRCUIT CORRESPONDING TO THE MAXIMUM ALLOWABLE RPM OF THE MOTOR, AND THE TIME CONSTANT OF THE SECOND MONOSTABLE CIRCUIT IS PREDETERMINED.

SYSTEM FOR LIMITING THE MAXIMUM ROTATION SPEED FOR A TWO-STROKE ENGINE

Engine idling control device

METHOD AND SYSTEM FOR CONTROLLING THE IGNITION ENERGY OF AN ENGINE

Braking device for two cycle engine

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Patent FR2166941A5

Patent DE8811670U1

IGNITION CIRCUIT, IN PARTICULAR FOR MAGNETO IGNITION INTERNAL COMBUSTION ENGINES

UN CIRCUIT D'ALLUMAGE ELECTRONIQUE POUR UN MOTEUR A ALLUMAGE PAR MAGNETO UTILISE UN RESEAU NON-LINEAIRE 16 QUI REAGIT AU SIGNAL BASSE TENSION PRODUIT DANS LA MAGNETO 10, 11, POUR COMMANDER UN INTERRUPTEUR ELECTRONIQUE QUI DECLENCHE LA DECHARGE D'UN CONDENSATEUR 13 PAR L'INTERMEDIAIRE D'UNE BOBINE HAUTE TENSION, AFIN D'ALLUMER LA BOUGIE D'ALLUMAGE 15 DE FACON A ASSURER UNE AVANCE AUTOMATIQUE SUR LA BASE DU DECALAGE DE LA REPONSE DU CIRCUIT NON-LINEAIRE 16 AU SIGNAL DE LA MAGNETO 10, 11.

Warning device of the shutdown of an internal combustion engine

SECURITY FOR ELECTRONIC IGNITION WITH STATIC DISTRIBUTION

Method and electronic apparatus for reversing the rotation of an engine

A method and an electronic apparatus for reversing the rotation of a two-stroke internal combustion engine, provided with an ignition system powered by a permanent magnet voltage generator. The electronic apparatus comprises a microprocessor control unit programmed for controlling the sparking both during forward and backward rotations, and for controlling the reversal rotation procedure of the engine. The reversal procedure is controlled on the basis of information obtained from a first binary signal emitted by a bistable magnetic sensor activated by the magnetic flux of the generator, and from a second binary signal correlated to the polarities of output voltage of the voltage generator. The original forward or backward rotation is made to reverse by providing a sparking delay, and subsequently generating an advanced spark while the engine is still rotating in the original direction.

Non-contact igniter of internal combustion engine

Apparatus for controlling an ignition coil of an internal combustion engine

An apparatus for controlling an ignition coil of internal combustion engines including a power transistor connected to the primary winding of an ignition coil for controlling the energization and deenergization of the primary winding in response to a signal applied to the base of the power transistor. A feedback circuit, including a constant voltage diode, a capacitor and a resistor, is connected between the collector and base of the power transistor. When the power transistor becomes conductive from a nonconductive condition, a collector current of the power transistor flows through the capacitor and constant voltage diode due to the Miller integrator effect and the transition from nonconduction to conduction of the power transistor is made gradual thereby reducing a voltage generated in the secondary winding of the ignition coil. On the contrary, when the power transistor becomes nonconductive from the conductive condition, the constant voltage diode is rendered conductive due to a high voltage generated at the collector of the power transistor to allow a base current to flow and in turn to allow a collector current thereby preventing breakdown of the power transistor.

Ignition device of return-locked internal combustion engine

Ignition device for internal-combustion engine equipped with overrunning preventing function

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

An ignition switch having a positive off and automatic on

A positive off and automatic on ignition stop switch and electronic circuit for use in an internal combustion engine. The circuit that allows for normal operation of the engine in an unbiased state. When it is desired to turn the engine off, a stop switch is triggered which provides a single mechanism for shutting off the engine. After the switch is activated, the circuit holds the ignition circuit in an off state for a sufficient amount of time to allow the engine to completely stop operation. The circuit holds the engine in the off state for a period of time even after the switch is deactivated. As a result, the operator of a piece of equipment in which the present invention is utilized can activate a switch one time, which results in the engine coming to a complete stop, without the requirement of further activity.

Shoe bottom for general footwear including heel, instep, plantar, support and insole

1.Planta para calzado perfeccionada, para calzado en general, constituida preferiblemente de material moldeado, caracterizada por comprender una zona delantera anular que está configurada convenientemente de modo que constituye, por lo menos en parte, una palmilla para sostener en una de sus caras un elemento de desgaste o suela y para soportar en la otra cara la pala, terminando la parte posterior de dicha zona delantera en un ala que forma, al manos en parte, un empeine y eventualmente un soporte plantar para sujetar y/o proveer el tacón del calzado. 2.Planta según la reivindicación 1, caracterizada porque la pieza anular de la zona delantera está provista de un ala que se extiende hacia el interior para sujetar los bordes del elemento de desgaste y el borde del corte del calzado. 3.Planta según las reivindicaciones 1 y 2, caracterizada porque la zona anular que forma la palmilla está provista de un entrante interno para la adaptación de parte del borde de la suela. 4.Planta para calzadoperfeccionada.

DEVICE FOR THE ELECTRONIC ADJUSTMENT OF THE IGNITION POINT OF IGNITION SYSTEMS OF INTERNAL COMBUSTION ENGINES

Electronic ignition device for internal combustion engines

Electronic Ignition Device for Internal Combustion Engines Abstract of the Disclosure An electronic ignition device for an internal combustion engine comprises a capacitor supplied by a charging circuit, a thyristor controlling discharge of the capacitor into the primary of an ignition coil, and a control circuit including an oscillator successively producing non-conduction and conduction of the thyristor several times in response to each opening of a contact-breaker. The device also comprises an RC delay element and a bistable trigger arranged to lock the control circuit when the device is switched on while the contact-breaker is in a given position, this locking becoming inoperative as soon as the contact--breaker comes into action.

Magneto high tension ignition system - has generator lamination distanced at least 10mm from armature for simple setting of timing

The rotating permanent magnetic wheel (13) induces an ac into the generator winding (11). The negative half waves are blocked by the two diodes (15) and the positive half waves charge the capacitor (16). The inductive impulse transmitter regulator winding (22) is inductively coupled to the iron core (12) of the generator to produce a number of low negative impulses which are blocked by the regulator diodes (24) but allow the positive impulse to discharge the ignition capacitors (16) via the thyristors (17, 17a). The ignition timing is progressively advanced relatively to increased engine speed by fixing the regulatore core to a conductor plate, which also carries the generator core (12), to give an air gap between the regulator core laminations and generator core of 12mm. The air gap between the regulator pole shoe and the rotating pole shoe is 0.8 mm plug or minus 10%.

Engine-condition-responsive cutoff apparatus

Apparatus for inhibiting the operation of an engine in response to engine speeds which exceed a preset number of revolutions per minute employs a cutoff circuit for detecting and shaping firing signals and a switch interposed in either the ignition powering circuit, or the fuel circuit of a diesel, which is operable upon a detected predetermined overlap of a shaped signal and the previous signal delayed a predetermined interval. The apparatus also utilizes temperature and pressure-sensing devices which are effective to operate the cutoff circuit in response to the detection of adverse temperature or pressure conditions within the engine. An engine cutoff device, i.e. a relay, is operated in response to a true output from an OR gate which has as its inputs the overlap detection circuit and the individual sensing devices. The cutoff device and the OR gate are also provided as a separate package for applications which require engine conditions detection other than overspeed detection.

Method and device for controlling the speed of an internal combustion engine

Es werden ein Verfahren und eine Vorrichtung zur Steuerung der Drehzahl einer Antriebseinheit vorgeschlagen, bei welchem ein Regler in Abhänigkeit der Abweichung zwischen Ist- und Solldrehzahl den Zündwinkel der Brennkraftmaschine beeinflußt. Dieser Regler weist wenigstens einen veränderlichen Parameter auf, welcher im Startfall eine gegenüber dem Normalregelbetrieb andere Größe annimmt. A method and a device for controlling the rotational speed of a drive unit are proposed, in which a controller influences the ignition angle of the internal combustion engine as a function of the deviation between the actual and desired rotational speeds. This controller has at least one variable parameter, which assumes a different size compared to the normal control mode in the start case.

Under the flywheel ignition system

AN IMPROVED UNDER THE FLYWHEEL IGNITION SYSTEM Abstract Of The Disclosure The present invention is directed to an improved capacitive discharge ignition system for a two cylinder internal combustion engine, such as an outboard marine engine. The system is adapted to be located beneath the flywheel of the engine and has overspeed and overheat protection. The overheat protection is of the type which is automatically deactivated after the overheat condition dissipates, but the deactivation will only occur when the operator slows the engine to a reduced speed before resuming normal operation.

Ignition breakerless and distributorless multiple cylinder ignition system

Method and electronic apparatus for reversing the rotation of an engine

A method and an electronic apparatus for reversing the rotation of a two-stroke internal combustion engine, provided with an ignition system powered by a permanent magnet voltage generator. The electronic apparatus comprises a microprocessor control unit programmed for controlling the sparking both during forward and backward rotations, and for controlling the reversal rotation procedure of the engine. The reversal procedure is controlled on the basis of information obtained from a first binary signal emitted by a bistable magnetic sensor activated by the magnetic flux of the generator, and from a second binary signal correlated to the polarities of output voltage of the voltage generator. The original forward or backward rotation is made to reverse by providing a sparking delay, and subsequently generating an advanced spark while the engine is still rotating in the original direction.

Automatic power interrupting system for vehicular control circuit

An automatic power interrupting system for a vehicular control circuit including a relay switch having a contact connected between a power source and the supply terminal of a control circuit and a relay coil connected with the power source, a control switch connected between the power source and the supply terminal and with the signal input terminal of the control circuit and turned on only by an external force, a revolution detector for detecting engine revolutions and a switching device for turning the relay switch on when power is supplied to the circuit and off after a predetermined time period measured after stop of the engine based on a signal from the revolution detector. A second embodiment includes a kill switch connected together with an ignition circuit and a power source, a relay switch having a contact connected between the power source and the supply terminal of the control circuit and a relay coil connected between the power source and the signal output terminal of the control circuit, a starter switch connected with a starter between the power source and the supply terminal and with the signal input terminal of the control circuit, a revolution detector for detecting engine revolutions and a switch for turning the relay switch on when the power is supplied to the circuit and off after a predetermined time period measured after stop of the engine based on a signal from the revolution detector.

Internal combustion engine control device

【課題】アトキンソンサイクルを実現する内燃機関において、燃料カット時に未燃ガスが排気通路に吹き抜けることを抑制する制御装置を提供する。 【解決手段】機関が、アトキンソンサイクルを行っているときに燃料カット制御を行う実行条件が成立した場合、筒内噴射弁の燃料の噴射時期を吸気下死点後に遅角し、噴射してから燃料カット制御を実行する。吸気下死点以降に吸気バルブが開いている期間に吸気通路内に吹き戻される燃料量が減少することにより、燃料カット制御を実行した場合に未燃ガスとして排気通路に流れる燃料の量を低減することができる。 【選択図】図４

Method for determining the need for replacing a spark plug of an internal combustion engine

一种用于确定需要更换内燃机火花塞的方法，包括以下步骤：监测流过火花塞的电流；分析所述电流，从而确定指示火花塞施加电压与火花塞电极间形成电弧放电之间的时间间隔；如果所确定的时间间隔的持续时间大于预定义的阈值，产生需要更换火花塞的指示信号。

Speed limitation for carburettor engines that are not yet warm

Die Erfindung vermeidet Motorschäden, welche auftreten können, wenn der noch kalte Motor mit einer zu hohen Motordrehzahl belastet wird. Insbesondere handelt es sich um folgende Schäden: Kompressionsverlust, hoher Benzinverbrauch, Ventilschäden. Da nicht jedes Fahrzeug mit einer Öl- bzw. Wassertemperatur-Anzeige ausgerüstet ist und nicht jeder Autofahrer auf die o. g. Anzeigen achtet, kann leicht die obere zulässige Kaltdrehzahl überschritten werden. Zur Abhilfe dieser Umstände dient ein Zusatzgerät, welches vom Motor die momentane Öltemperatur und Motordrehzahl aufnimmt. Diese Informationen werden in dem Zusatzgerät verarbeitet und entsprechend des momentanen Zustandes schaltet dieses ein Relais, welches den Zündstromkreis unterbricht, bis die zulässige Kaltdrehzahl erreicht ist. Durch die Schaltung ist garantiert, daß in der Warmlaufphase des Motors die entsprechende Drehzahl eingehalten wird. The invention avoids engine damage which can occur if the engine, which is still cold, is loaded with an engine speed that is too high. In particular, it concerns the following damage: loss of compression, high fuel consumption, valve damage. Since not every vehicle is equipped with an oil or water temperature display and not every car driver has to refer to the above. Displays, the upper permissible cold speed can easily be exceeded. To remedy these circumstances, an additional device is used, which records the current oil temperature and engine speed from the engine. This information is processed in the additional device and, depending on the current state, it switches a relay which interrupts the ignition circuit until the permissible cold speed is reached. The circuit guarantees that the appropriate speed is maintained when the engine is warming up.

Distributing rotor for internal-combustion engine igniting distributor

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Dual schedule ignition system

An ignition system for an internal combustion engine, such as an outboard marine engine, which includes an advanced timing schedule, a non-advanced timing schedule, and a circuit for switching between the two schedules or disabling both schedules based upon engine operating conditions. The ignition system includes an optoelectronic time base generator which produces two sets of timing pulses relative to crankshaft position which are non-advanced timing pulses and advanced timing pulses. The time base generator comprises a LED-phototransistor pair and an encoder disk attached to the crankshaft with slots to interrupt the emission path between LED-phototransistor pair. The non-advanced pulses are generated based upon the trailing edge of each slot while the advanced pulses are generated based up the leading edge, wherein the width of the slots indicate the degree of advancement of the advanced schedule over the non-advanced schedule. Both schedules are inhibited based on a high overspeed condition and a low overspeed condition when the engine is overheated, wherein there is a smooth transition between the two conditions.

Method and electronic apparatus for reversing the rotation of an engine

A method and an electronic apparatus for reversing the rotation of a two-stroke internal combustion engine, provided with an ignition system powered by a permanent magnet voltage generator. The electronic apparatus comprises a microprocessor control unit programmed for controlling the sparking both during forward and backward rotations, and for controlling the reversal rotation procedure of the engine. The reversal procedure is controlled on the basis of information obtained from a first binary signal emitted by a bistable magnetic sensor activated by the magnetic flux of the generator, and from a second binary signal correlated to the polarities of output voltage of the voltage generator. The original forward or backward rotation is made to reverse by providing a sparking delay, and subsequently generating an advanced spark while the engine is still rotating in the original direction.

Speed limiter for internal combustion engines

Spark plug for venting excessive pressure

An internal combustion engine spark plug provides an overpressure release mechanism to avert engine component damage as a result of hydrostatic lock caused by liquids (typically water) entering the combustion chamber under operating conditions. This spark plug incorporates predictably and adjustably weakened structural zones such that, upon encountering overpressure situations, the central portion of the plug is ejected, generating sufficient flow area to expel gasses and liquids from the combustion chamber and venting the cylinder to the atmosphere. The invention is also useful in the detection and avoidance of damage under conditions of detonation.

Capacitive discharge ignition system

A capacitive discharge ignition system is provided for use in connection with a magneto power supply. A time delay circuit is provided to delay discharge of the capacitor until it is completely charged by a pulse of electrical energy being emitted from the magneto.

Positive starting circuit

A positive starting system and circuit prevents false starting of a multicylinder two-cycle internal combustion engine (10). During initial cranking of the engine, starter kick-out is caused by ignition of a residual combustible charge in a cylinder, however the following cylinder does not have a combustible charge, and the engine ceasing running, thus requiring re-engagement of the starter to start the engine. The problem is solved by delaying ignition upon initial cranking until sufficient combustible charge is developed in the remaining cylinders. Upon initial cranking, ignition is disabled, and a timing delay interval is initiated. At the end of such interval, ignition is enabled.