Universal automotive ignition pickup assembly

The present invention is a Universal Automotive Ignition Pickup Assembly that produces an ignition secondary voltage waveform that can be monitored by an oscilloscope or microprocessor. This is accomplished with a sensing probe that can be capacitive coupled; inductively coupled; or capacitive and inductively coupled at the same time. Due to the ability of a pickup to be capacitive and inductive at the same time, the ignition voltage waveforms are clear and concise from secondary ignition wires to a multitude of different ignition coil types.

Ignition control apparatus

Ignition is performed in such a way that a bias voltage is applied to a first electrode of an ignition plug and a current detection device detects a current that flows in the first electrode, that based on the value of the detected current, a smolder level detection device detects the level of a smolder produced in the ignition plug, and that a control device controls, based on the detected smolder level, at least one of the timing of ignition, the number of ignition events per power stroke of an internal combustion engine, and the amount of energy accumulated in an ignition coil device.

Control Device

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

Spark plug fouling detection for ignition system

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

Method and apparatus for generating an ion current between electrodes of a spark plug

The invention relates to a method for generating an ion current which occurs as a direct current between a central electrode and one or more side electrodes of a spark plug of a spark ignition engine which is supplied repeatedly with an ignition voltage from an ignition voltage source, wherein the spark ignition engine is assigned an engine control unit, which, in an engine cycle, determines for each spark plug a target ignition point and/or an activation point for the ignition voltage source before the target ignition point, and a second voltage source is provided, which delivers a second voltage for the generation of the ion current, wherein the second voltage source lying in the engine cycle for a first time interval Δt 1 , which is shorter than the duration of the engine cycle, is connected to the electrodes of the spark plug, and wherein the ion current flowing as a result of the application of the second voltage to the electrodes of the spark plug takes a path which avoids the ignition voltage source.

Ignition system

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

ENGINE SYSTEM FOR VESSEL PROPULSION DEVICE AND VESSEL INCLUDING THE SAME

An engine system for a vessel propulsion device includes an engine including an intake amount adjusting unit and an ignition plug, and configured to generate a drive force for the vessel propulsion device. The engine system includes an ignition timing control unit, a knocking detecting unit, a knocking retard control unit that retards the ignition timing of the ignition plug by a unit retard amount when the knocking detecting unit detects knocking, an abnormality judging unit that, when a state where the knocking detecting unit detects knocking at intervals within a predetermined time continues, judges that an abnormality has occurred based on a continued state of knocking detection, and an intake amount limiting unit that limits the intake amount of the engine based on judgment of an abnormality made by the abnormality judging unit. 1. An engine system for a vessel propulsion device , the engine comprising:an engine including an intake amount adjusting unit configured to adjust an intake amount to be sucked into a cylinder and an ignition plug configured to ignite a gas mixture inside the cylinder, the engine being configured to generate a drive force for the vessel propulsion device to generate thrust of a vessel;an ignition timing control unit configured and programmed to control an ignition timing of the ignition plug;a knocking detecting unit configured to detect knocking in the engine;a knocking retard control unit configured and programmed to cause the ignition timing control unit to retard the ignition timing of the ignition plug by a unit retard amount when the knocking detecting unit detects knocking;an abnormality judging unit configured and programmed to, when a state in which the knocking detecting unit detects knocking at intervals within a predetermined time continues, judge that an abnormality has occurred based on a continued state of knocking detection; andan intake amount limiting unit configured and programmed to limit the intake amount of the ...

Ignition device for internal combustion engine

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

Ignition control apparatus

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

Misfire detection using ion current integration and rpm adaptation

An ignition system controlled by a powertrain controller via a dwell line carrying a dwell signal has a state machine to monitor a dwell period between consecutive dwell signals and to adjust a rate of a variable clock signal accordingly. A multi-bit counter is clocked by the adjusted clock signal. The counter has a first set of bits to establish an integration period and a second set of bits coupled to a resistive ladder generating a stair step signal. A current sensor provides a current signal proportional to the ion current. A comparator compares the current signal to the stair step signal. An ion current counter is incremented during the integration period whenever the current signal indicates an ion current magnitude greater than the stair step signal. The accumulated count at the end of the integration period is reported to the powertrain controller as a measure of the ion current.

Gas Fuel Engine Spark Plug Failure Detection

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

GAS ENGINE IGNITION SYSTEM FOR EXTENDING LIFE AND LEAN LIMIT

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

SYSTEM AND METHOD FOR MONITORING AN IGNITION SYSTEM

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

ELECTRONIC DEVICE TO CONTROL AN IGNITION COIL OF AN INTERNAL COMBUSTION ENGINE AND ELECTRONIC IGNITION SYSTEM THEREOF FOR DETECTING A PRE-IGNITION IN THE INTERNAL COMBUSTION ENGINE

It is disclosed an electronic device to control an ignition coil of an internal combustion engine comprising a high-voltage switch, a driving unit, a bias circuit and an integrating circuit. The high-voltage switch is connected in series with a primary winding of a coil. The driving unit is configured to control the closing and opening of the high-voltage switch. The integrating circuit is interposed between the bias circuit and a reference voltage. The integrating circuit comprises an integrating capacitor. The integrating capacitor is configured, in the case wherein a pre-ignition of the comburent-combustible mixture in the combustion chamber during the phase of charging occurs, to pre-charge during the phase of charging energy in the primary winding and it is configured, in the case wherein the pre-ignition of the comburent-combustible mixture does not occur, to maintain the charge state substantially constant during the phase of charging energy.

SPARK PLUG CONDITION MONITORING

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

METHOD AND SYSTEM FOR ENGINE CONTROL

Methods and systems are provided for coordinating cylinder deactivation adjustments with changes to individual cylinder piston displacement. In doing do, the benefits of variable displacement and variable compression ratio may be synergized. An engine can be operated with some cylinders deactivated while active cylinders operate with knock addressed while spark timing is at MBT for a longer duration. 1. A method for an engine , comprising:selectively deactivating one or more engine cylinders based on engine load; andadjusting a piston displacement to vary a compression ratio of active engine cylinders to maintain spark timing of the engine at a peak torque timing while maintaining the one or more cylinders deactivated.2. The method of claim 1 , wherein the adjusting includes claim 1 , while maintaining spark timing at the peak torque timing claim 1 , adjusting the piston displacement to reduce the compression ratio from a higher threshold compression ratio as an indication of knock increases.3. The method of claim 2 , further comprising claim 2 , reducing the compression ratio while maintaining the spark timing at the peak torque timing responsive to knock until a lower threshold compression ratio is reached claim 2 , and responsive to a further indication of knock claim 2 , retarding spark timing while maintaining the compression ratio at the lower threshold.4. The method of claim 3 , further comprising claim 3 , retarding spark timing responsive to the further indication of knock until a fuel usage amount is higher than a threshold amount claim 3 , and then reactivating a deactivated cylinder claim 3 , resuming spark timing at the peak torque timing in the active cylinders claim 3 , and raising the compression ratio of the active cylinders to or towards the higher threshold compression ratio.5. The method of claim 3 , wherein the adjusting includes claim 3 , retarding spark timing responsive to the further indication of knock until spark timing reaches a threshold ...

Internal combustion engine combustion state detecting device

The invention provides an internal combustion engine combustion state detecting device such that ascertaining a combustion state using ionic current detection is carried out accurately over a wide operating range of an internal combustion engine. The internal combustion engine combustion state detecting device includes a spark plug that has a central electrode and a grounding electrode opposing across a gap, and a discharge stopping-induced current detecting device that estimates an induced current caused by a stopping of a spark discharge generated in the gap between the central electrode and the grounding electrode, wherein an ionic current detection threshold is set to a threshold value that is not affected by the induced current using the induced current estimated by the discharge stopping-induced current detecting device.

Igniter and vehicle

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

IGNITION SYSTEM OF AN AIRCRAFT TURBINE ENGINE

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

UNEQUAL INTERVAL COMBUSTION ENGINE MISFIRE DETERMINATION DEVICE AND VEHICLE

An unequal-interval combustion engine misfire-determination device determines whether a misfire has occurred in an unequal-interval combustion engine including a plurality of cylinders in which combustion occurs at unequal intervals. The misfire determination device includes: an unequal interval combustion fluctuation canceled value acquisition unit that acquires, based on a crank angle signal, an unequal interval combustion fluctuation canceled value which is a rotation speed in a section of 720×m crank angle degrees including a predetermined determination angle position, where m is a natural number; an unequal interval combustion fluctuation manifested value calculation unit that calculates an unequal interval combustion fluctuation manifested value in which a fluctuation component attributable to unequal interval combustion is manifested, by removing the unequal interval combustion fluctuation canceled value; and a specific cylinder misfire determination unit that determines a misfire in a specific cylinder based on the unequal interval combustion fluctuation manifested value. 1. An unequal interval combustion engine misfire determination device that determines a misfire in an unequal interval combustion engine including a plurality of cylinders in which combustion occurs at unequal intervals and a crankshaft , the determination being performed based on a crank angle signal indicating a rotation angle of the crankshaft , the unequal interval combustion engine misfire determination device comprising:an unequal interval combustion fluctuation canceled value acquisition unit that acquires an unequal interval combustion fluctuation canceled value for every 720 crank angle degrees based on the crank angle signal while the unequal interval combustion engine is in operation, the unequal interval combustion fluctuation canceled value being a value in which a fluctuation component attributable to unequal interval combustion is canceled, the unequal interval combustion ...

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 ...

Two-Dimensional Igniter For Testing In-Cylinder Gas Velocity And/Or Gas Composition

An igniter system for measuring gas velocity and/or gas composition within the combustion chamber of an internal combustion engine. The igniter has an insulator body and conductive shell around the top portion of the insulator body, configured so that the igniter can be installed in place of a conventional spark plug. The igniter has two pairs of electrodes, each pair of electrodes providing a spark gap and operable to generate a spark within the combustion chamber. An activation and measurement unit is operable to generate a sustained arc in each spark gap, and to measure the voltage, current and capacitance in a measurement circuit associated with each spark gap. From various electrical measurements, the velocity and composition of the gas in the combustion chamber can be determined.

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 ...

Spark plug fouling detection for ignition system

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

Ion Processing System

An ion processing system for collecting and processing combustion information to improve engine efficiency and decrease engine emissions. The ion processing system generally includes a processing unit which is adapted to receive signals from engine sensors such as the crank sensor, injector sensor, and cam sensor. An ion sensor is provided to detect all phases of combustion and generate an ion current signal to be received by the processing unit. Signal conditioners are provided for each individual signal source (crank sensor, injector sensor, cam sensor, ion sensor) to amplify and filter the signals for optimal detection and analysis by the processing unit. The processing unit may monitor crank positioning, cam positioning, and injector timing across all stages of operation of an engine in real-time. This information may be processed and communicated to an engine control unit to improve efficiency and reduce emissions, or to a computing device for diagnostics.

SYSTEM FOR MONITORING A PRECHAMBER OF AN ENGINE

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

Ignition device for internal combustion engine

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

ELECTRONIC IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE AND DRIVING METHOD OF THE SAME

An electronic ignition system for an internal combustion engine comprises an ignition coil () provided with at least a primary winding () and a secondary winding (), a switch () connected to the primary winding () and drivable in an open and/or closed position according to the value of a driving signal, a control unit () associated to the switch () and configured to drive it in open and/or closed position according to the value of the driving signal (G). Such system also comprises a voltage changing electronic element () connected to the electrical connection (), operatively interposed between the electrical connection () and the primary winding (), and configured to change the voltage value of the primary winding () according to the value of a control signal between at least a first (V) and a second (V) voltage value. The system also comprises a ionization measuring device () around said discharge gap () of the spark plug () associated with the secondary winding () and arranged to detect a current value in the secondary winding () and to send a signal representative of said value to the control unit (), wherein the control unit () is configured to activate said measuring device () upon the shutdown of the electric arc or spark. 1. A plasma electronic ignition system for an internal combustion engine , configured to generate a spark of predetermined duration within an engine cylinder , the plasma electronic ignition system comprising:an ignition coil provided with a primary winding and a secondary winding, wherein said primary winding is connectable, by an electrical connection, to a voltage generator device and said secondary winding is connectable to a spark plug;a switch connected to said primary winding and drivable to open and/or close said primary winding according to a value of a driving signal, in order to prevent or allow passage of an electric current through said primary winding;control unit associated with said switch and configured to drive said switch ...

IONIZATION DETECTOR WITH IGNITION COIL INDUCTANCE SHORTING

An ionization detector that reduces the filtering effects of the ignition coil inductances by shorting an inductance of a primary winding of the ignition coil. The ionization detector includes a bias voltage source and an inductance control switch. The bias voltage source supplies electric voltage across an electric gap of a spark plug for detecting ionization within the combustion chamber. The inductance control switch is electrically parallel with a primary winding of an ignition coil and is operable to short an inductance of the primary winding. 1. An ionization detector apparatus for detecting ionization of gases , the apparatus comprising:a coil having a primary winding and a secondary winding;a bias voltage source electrically coupled to the secondary winding, wherein the bias voltage source supplies electric voltage across an electrical gap by way of the secondary winding such that an ionization current flows across the electrical gap in response to ionized gas being present;an inductance control switch positioned electrically parallel with the primary winding of the coil and operable to short an inductance of the primary winding; anda current sensor outputting a signal indicative of the ionization current flowing from the bias voltage source to the electrical gap, wherein the current sensor comprises a current mirror circuit.2. The ionization detector apparatus of wherein:the inductance control switch includes a plurality of transistors and a driver;the plurality of transistors are electrically coupled between a positive terminal and a negative terminal of the primary winding; andthe driver is operable to drive the plurality of transistors to an ON state or an OFF state such that the inductance control switch shorts the inductance of the primary winding when the transistors are in the ON state.3. The ionization detector apparatus of wherein:the plurality of transistors includes a first transistor and a second transistor, both the first transistor and the ...

INTERNAL-COMBUSTION-ENGINE COMBUSTION STATE DETECTING APPARATUS

An internal-combustion-engine combustion state detecting apparatus is configured in such a way as to include a circulation unit that short-circuits a primary winding so as to form a circulation path including the primary winding, while a spark discharge is produced in an ignition plug, and a circulation current control unit that controls a circulation current flowing in the circulation path and in such a way that based on an ion current detected by an ion current detection apparatus, the combustion state of an inflammable fuel-air mixture is detected. 1. An internal-combustion-engine combustion state detecting apparatus comprising:a circulation unit;a circulation current control unit;an ignition winding including a primary winding and a secondary winding magnetically coupled with the primary winding;a power source apparatus that supplies the primary winding with an electric current;a switch that is disposed between the primary winding and the power source apparatus and controls energization and de-energization of the electric current; andan ion current detection apparatus that detects an ion current in a combustion chamber of an internal combustion engine, the ion current being generated by igniting, by a spark discharge produced by an ignition plug provided in the internal combustion engine, an inflammable fuel-air mixture provided in the combustion chamber;wherein the ignition winding is configured so that when the switch is in a conduction state, the power source apparatus supplies the primary winding with an electric current that is accumulated in the primary winding as energy for producing the spark discharge, and so that when the switch is turned off while the power source apparatus is supplying the primary winding with the electric current, the electric current flowing in the primary winding is interrupted, generating a voltage in the secondary winding that causes the spark discharge in the ignition plug,wherein based on the ion current detected by the ion ...

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

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

Ignition apparatus

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

Spark plug combustion ionization sensor

A spark plug combustion ionization sensor for measuring ion current inside the cylinder of an internal combustion engine. The sensor measures ion current which flows when the energy released during combustion ionizes the air inside the cylinder, and thus can detect combustion and emission parameters. The spark plug combustion ionization sensor generally includes an insulated, dedicated sensing electrode, separate from the sparking electrode of a spark plug. The sensing electrode may also be shielded to further reduce interference such as electromagnetic interference (EMI). The use of a dedicated electrode allows for ion current measurement with less electromagnetic noise from the ignition process, and also eliminates the need for circuitry that is typically necessary when the sparking electrode is also used to sense ion current.

Ignition system

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

IGNITION CONTROL DEVICE

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

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

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

IGNITION DEVICE

An ignition device according to the present invention includes: an ignition plug, which includes a first electrode, a second electrode, and a dielectric body arranged between the electrodes; an AC power supply configured to generate an AC voltage to be applied between the electrodes; a thermal plasma detection portion configured to output a thermal plasma occurrence signal when thermal plasma has occurred between the electrodes; and an application time period determination portion configured to determine an application time period for the AC voltage during one cycle of the internal combustion engine in advance before the application, and when the thermal plasma occurrence signal is received while the AC voltage is being applied based on the application time period, change the application time period so as to shorten the application time period. 17-. (canceled)8. An ignition device , comprising:an ignition plug, which is arranged in an internal combustion engine, and includes a first electrode, a second electrode, and a dielectric body arranged between the first electrode and the second electrode;an AC power supply configured to generate an AC voltage to be applied between the first electrode and the second electrode;a thermal plasma detection circuit configured to detect whether thermal plasma has occurred between the first electrode and the second electrode, and when the thermal plasma is detected, output a thermal plasma occurrence signal; andan application time period determination circuit configured to determine an application time period for the AC voltage during one cycle of the internal combustion engine in advance before the application, and when the thermal plasma occurrence signal is received while the AC voltage is being applied based on the application time period, change the application time period so as to shorten the application time period,wherein, when the thermal plasma occurrence signal is received, the application time period determination ...

IGNITION APPARATUS

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

Ignition control device and ignition control method for internal combustion engine

The ignition control device includes a spark plug that includes a first electrode and a second electrode disposed so as to oppose each other, an ignition coil that includes a plurality of sets of a primary coil and a secondary coil, generates a high voltage in the secondary coil by energizing or interrupting a primary current supplied to the primary coil, and applies the generated high voltage to the first electrode, and a control unit that, in a case where a plurality of the primary coils are driven during a single ignition process, temporarily stops energization of a primary current supplied to a second primary coil when a primary current supplied to a first primary coil is interrupted, and re-energizes the primary current supplied to the second primary coil following the elapse of an energization stoppage period.

CONTROLLER AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE

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

SYSTEM AND METHOD FOR MONITORING AN IGNITION SYSTEM

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

MISFIRE DETERMINATION DEVICE

A misfire determination device of an engine in which explosion occurs at unequal intervals, the engine including a plurality of cylinders and a crankshaft which is angularly displaced at a different angle between expansion strokes, is configured to calculate generated torque correlation amount correlated with generated torque, based on an angular position signal of the crankshaft, and perform misfire determination, based on an average value of the generated torque correlation amount in an interval less than one cycle of the engine, at an angular position of the crankshaft which is different from an angular position of the crankshaft at an ignition timing. 1. A misfire determination device of an engine in which explosion occurs at unequal intervals , the engine including a plurality of cylinders and a crankshaft which is angularly displaced at a different angle between expansion strokes , the misfire determination device being configured tocalculate a generated torque correlation amount correlated with generated torque, based on an angular position signal of the crankshaft, andperform misfire determination, based on an average value of the generated torque correlation amount in an interval less than one cycle of the engine, at an angular position of the crankshaft which is different from an angular position of the crankshaft at an ignition timing.2. The misfire determination device according to claim 1 ,wherein the angular position of the crankshaft at which the misfire determination is performed is set for each of the plurality of cylinders for which the misfire determination is to be performed, and angular positions corresponding to the plurality of cylinders, respectively have values different from each other.3. The misfire determination device according to claim 2 ,wherein the angular position of the crankshaft at which the misfire determination is performed is set to be smaller as a crank angle interval between the expansion strokes is smaller.4. The misfire ...

ELECTRONIC IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

An electronic ignition system for an internal combustion engine. The system includes a coil having a primary winding with a first terminal and a second terminal and a secondary winding connected to a spark plug. A high voltage switch is serially connected to the primary winding. A control terminal carries a control signal to control the opening or closing of the high voltage switch. A first switch is interposed between a battery voltage and the first terminal of the primary winding, a second switch is interposed between the first terminal of the primary winding and a reference voltage, a third switch is interposed between the second terminal of the primary winding and said reference voltage. A driving unit is configured to generate signals to control the switches during a charging phase, during a transfer of energy phase, and during a measure phase of ionization current. 1. An electronic ignition system for an internal combustion engine , the electronic ignition system comprising: a primary winding having a first terminal and a second terminal;', 'a secondary winding connected to a spark plug;, 'a coil that includesa high voltage switch serially connected to the primary winding and having a control terminal carrying a signal to control an opening or a closing of the high voltage switch;a first switch interposed between a battery voltage and the first terminal of the primary winding and having a first driving terminal carrying a first driving signal to control an opening or a closing of the first switch;a second switch interposed between the first terminal of the primary winding and a reference voltage and having a second driving terminal carrying a second driving signal to control an opening or a closing of the second switch;a third switch interposed between the second terminal of the primary winding and said reference voltage and having a third driving terminal carrying a third driving signal to control an opening or a closing of the third switch; generate the ...

Control apparatus for internal combustion engine (as amended)

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

Method and device for igniting a gas-fuel mixture

The invention relates to a method and a device for igniting a gas-fuel mixture, in particular in internal combustion engines, wherein at least one gas discharge gap bounded by two electrodes is ignited by means of a high voltage, which is produced by an ignition circuit and applied to the gas discharge gap. After the breakdown of the gas discharge gap, the current through the gas discharge gap is controlled by a control circuit in such a way that the gas discharge lies in the abnormal WOW range, in which the voltage across the gas discharge gap rises for currents greater than 0.1 A having a positive slope. The current through the gas discharge gap is controlled in such a way that said current lies between 0.1 A and 10 A, preferably is greater than 0.1 A and less than or equal to 3 A, more preferably lies between 0.5 A and 1 A, wherein the voltage lies between 250 V and 3000 V, preferably between 500 V and 2000 V. The duration of the current flow 9 through the gas discharge gap or the period of the current flow through the gas discharge gap FIG. 1 is controlled in such a way that said duration or period lies between 0.01 μs and 50 μs, preferably between 0.1 μs and 10 μs.

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

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

Current Profile Optimization

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

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

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

APPARATUS AND SYSTEM FOR DUAL IGNITION SOURCES FOR A VEHICLE

Apparatuses, methods, and systems for igniting fuel for an internal combustion engine, an ignition system include a first ignition device associated with a pre-combustion chamber of a cylinder and a second ignition device associated with a main combustion chamber of the cylinder. An engine control unit is operably connected to both the engine and the ignition system to ignite fuel for the cylinder with the first ignition device independently of igniting fuel with the second ignition device. The engine control unit determines an occurrence of a combustion condition and in response thereto (i) ignites fuel for combustion with both the first and the second ignition devices or (ii) ignites fuel for combustion only with the second ignition device. The engine control unit determines a second combustion condition and in response thereto ignites fuel only with the first ignition device. 1. A method comprising:determining a first combustion condition of an internal combustion engine including an ignition system including a first ignition device for igniting fuel in a pre-combustion chamber of a cylinder and a second ignition device for igniting fuel in a main combustion chamber of the cylinder, and an engine control unit configured to initiate ignition with the first ignition device independently of the second ignition device; andin response to the first combustion condition, (i) igniting fuel with the first ignition device and the second ignition device or (ii) igniting fuel with the second ignition device without igniting fuel with the first ignition device, to operate the engine.2. The method of claim 1 , further comprising:determining an occurrence of a second combustion condition associated with operation of the internal combustion engine; andin response to the second combustion condition, igniting fuel with only the first ignition device to operate the engine.3. The method of claim 2 , wherein the first combustion condition includes at least one of a cold engine start ...

LOW SPEED PRE-IGNITION KNOCK DETECTION

A system for and a method of knock detection and control for an engine utilizes a knock sensor configured to generate a knock signal indicative of a vibration of the engine caused by abnormal combustion. A controller is configured to receive the knock signal, determine, with respect to a crank angle of the engine, distinct monitoring windows for low speed pre-ignition (LSPI) knock and spark knock, respectively, based on (i) spark timing and (ii) an appropriate mass fraction burn (MFB) location, monitor the knock signal using the distinct monitoring windows, detect one of LSPI knock and spark knock based on the monitoring, and control the engine to mitigate the detected LSPI knock or spark knock. 1. A knock detection and control system for an engine , the system comprising:a knock sensor configured to generate a knock signal indicative of a vibration of the engine caused by abnormal combustion; and receive the knock signal,', 'determine, with respect to a crank angle of the engine, distinct monitoring windows for low speed pre-ignition (LSPI) knock and spark knock, respectively, based on (i) spark timing and (ii) an appropriate mass fraction burn (MFB) location,', 'monitor the knock signal using the distinct monitoring windows,', 'detect one of LSPI knock and spark knock based on the monitoring, and', 'control the engine to mitigate the detected LSPI knock or spark knock., 'a controller configured to2. The system of claim 1 , wherein the LSPI knock monitoring window is positioned before the appropriate MFB location and the spark knock monitoring window is positioned after the appropriate MFB location.3. The system of claim 2 , wherein the LSPI and spark knock monitoring windows are separated by a controller reset window.4. The system of claim 3 , wherein the controller is configured to reset its signal amplifications and detection thresholds during the controller reset window.5. The system of claim 4 , wherein each distinct monitoring window has distinct signal ...

Detection system for determining spark voltage

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

Discharge state detecting apparatus of internal combustion engine

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

Knocking detection method, ignition timing control method, and ignition timing control system

A knocking detection method includes: a step of obtaining an oscillation waveform generated by combustion in the combustion chamber; a step of setting a first time window preceding a maximum inner pressure time at which an inner pressure of the combustion chamber is at maximum in a single combustion cycle and a second time window immediately after the maximum inner pressure time, and transforming each of a first waveform portion included in the first time window and a second waveform portion included in the second time window into an expression-domain expression, of the oscillation waveform; and a step of extracting a first peak at which amplitude of the frequency domain expression of the first waveform portion is at maximum in the first frequency windows and a second value at which the amplitude of the frequency domain region of the second waveform portion is at maximum in the second frequency window and determining whether knocking has occurred on the basis of the second peak value and the first peak value.

IGNITION SYSTEM AND METHOD FOR OPERATING AN IGNITION SYSTEM

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

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 ...

Gated ionization current supply voltage

An internal combustion engine, a method of operating the internal combustion engine, and a controller are disclosed. The method may be implemented in part by the controller and comprises determining a shaft angle of an engine shaft; supplying, to an ion sensor fluidly coupled to a combustion chamber of the engine a low voltage at a beginning of a combustion cycle to generate an ion sensor current and a high voltage during an ionization voltage window based at least in part on the shaft angle, wherein the low voltage is configured to prevent premature ignition of fuel in the combustion chamber and the high voltage exceeds the low voltage and is configured to increase the ion sensor current above a current threshold.

CONTROL DEVICE AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE

To provide a control device, of an internal combustion engine, that accurately identifies the combustion state through ion current detection in a wide operation range of the internal combustion engine, without impairing the reliability and the durability of the control device of the internal combustion engine. This internal combustion engine control device includes: an ignition plug having a center electrode and a ground electrode opposed to each other with a gap therebetween; a circulation device for short-circuiting a primary winding to cause a circulation route to enter a conduction state, thereby stopping spark discharge; and an ion-current-detection bias voltage control device for controlling bias voltage for ion current detection. The potential of the center electrode in an ion current detection period is controlled by adjusting the value of the bias voltage and the changing speed of the bias voltage.

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

A control device for an internal combustion engine includes a knock control system, a cooling system, and an electronic control unit. The knock control system is configured to ignite a spark plug an ignition crank angle obtained by retarding the ignition crank angle in response to an occurrence of the knocking. The electronic control unit is configured to supply a command value corresponding to a target value of a cooling parameter to the cooling system such that the cooling system performs cooling of the internal combustion engine according to the command value. The electronic control unit is configured to correct the command value based on a KCS learned value such that as the KCS learned value increases, a correction amount for correcting the command value increases in correction amount in a direction in which a cooling capacity of the cooling system increases. 1. A control device for an internal combustion engine , comprising:a knock control system configured to calculate a KCS learned value according to presence or absence of knocking of the internal combustion engine such that the KCS learned value is updated in an increase direction when the knocking occurs and is updated in a decrease direction when the knocking does not occur, the knock control system configured to calculate an ignition crank angle based on the KCS learned value, the knock control system configured to ignite a spark plug of the internal combustion engine at an ignition crank angle obtained by retarding the ignition crank angle in response to an occurrence of the knocking;a cooling system configured to cool the internal combustion engine; andan electronic control unit configured to supply a command value corresponding to a target value of a cooling parameter to the cooling system such that the cooling system performs cooling of the internal combustion engine according to the command value, the electronic control unit configured to correct the command value based on the KCS learned value such ...

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

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

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

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

IGNITION COIL UNIT AND IGNITION SYSTEM USED IN INTERNAL COMBUSTION ENGINE

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

Ignition system abnormality detection method

Ignition apparatus for an internal combustion engine

내용 없음. No content.

Method and device for diagnostics of misfire in cylinders of internal combustion engine

FIELD: manufacture of engines. SUBSTANCE: method and device for diagnostics of misfire in cylinders of internal combustion engine ensure high reliability of results. Device for diagnostics of misfire may be used both as a component of engine and as independent diagnostics system, for example at service stations. Method consists in recording electrical signal in high-voltage circuit of ignition system in case of break-down between electrodes of spark-plug. Series of diagnostics pulses at magnitude of voltage sufficient for break-down between spark-plug electrodes is furnished to spark plug of cylinder to be subjected to diagnostics in course of discharge of working mixture (fuel-and-air mixture or combustion products) in case preceding to this ignition stroke in cylinder or absence of break-down in case preceding to misfire in cylinder. Presence or absence of of electrical signal in high-voltage circuit of spark-plug is recorded. Absence of electrical signal is indicative of misfire in this cylinder. EFFECT: enhanced efficiency. 5 cl, 4 dwg сСс9950сС ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) ВИ” 2 056 522 ' (51) МПК 13) Сл Е 02 Р 11/06 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 94025016/06, 13.07.1994 (46) Дата публикации: 20.03.1996 (56) Ссылки: 1.Патент США М 5095742, кл. С О1Е 3/26, 1992. 2. Патент США М 4930479, кл. Е 020 41/14, 1990. 3. Патент США М 5109695, кл. С 01М 15/00, 1992. 4. Патент США М 5127262, кл. С О1М 15/00, 1992. 5. Клюев В.В. и др. Технические средства диагностирования. М.: Машиностроение, 1989, с.351-353, рис.18. (71) (72) (73) Заявитель: Годлевский Виктор Евгеньевич, Дубинин Анатолий Иванович, Кокотов Валерий Яковлевич, Михеев Юрий Викентьевич, Черняк Борис Яковлевич Изобретатель: Годлевский Виктор Евгеньевич, Дубинин Анатолий Иванович, Кокотов Валерий Яковлевич, Михеев Юрий Викентьевич, Черняк Борис Яковлевич, Маловичко Николай Сергеевич Патентообладатель: Годлевский Виктор Евгеньевич, ...

Ignition system

점화 시스템(10)은 제1 전극(18)과 제2 전극(20) 사이에서 스파크 갭(16)을 한정하는 제1 종단(14)을 갖는 스파크 플러그(12)를 포함한다. 주 와인딩(44) 및 부 와인딩(50)을 포함하는 트랜스포머(46)는 또한 시스템의 부분을 형성한다. 부 와인딩은 부 회로 내에서 제1 전극(18)에 연결되고 부 와인딩은 1㏀보다 작은 저항 및 0.25H보다 작은 인덕턴스를 갖는다. 구동 회로(26)는 주 와인딩에 연결된다. 점화 시스템, 스파크 플러그, 트랜스포머, 와인딩, 구동 회로

Noncontact measuring device for revolution number of gasoline engine car

Ignition device

Engine ignition energy testing device for vehicle

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

Method and device for internal combustion engine ignition

FIELD: engine engineering. SUBSTANCE: device comprises central control unit and peripheral units each for one cylinder of internal combustion engine. The central control unit sends digital control signals to periphery units on which the peripheral units ignites mixture in the corresponding cylinder. The peripheral units measure the parameters which characterize their condition and send the test digital signals to the central control unit. The central control unit analyses and process the test signals from the peripheral units and determines time interval between the control signals and test signals. EFFECT: enhanced reliability of ignition testing. 36 cl, 12 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (51) ÌÏÊ 7 (11) 2 256 091 (13) C2 F 02 P 17/00 ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2002110283/06, 27.09.2000 (72) Àâòîð(û): ÕÀÓÑÑÌÀÍÍ Ìàðòèí (DE), ÕÀÉÌÅÇ Éîàõèì (DE) (24) Äàòà íà÷àëà äåéñòâè ïàòåíòà: 27.09.2000 (30) Ïðèîðèòåò: 06.10.1999 (ïï.1-7, 917) DE 19948193.8 24.11.1999 (ïï.8, 1836) DE 19956381.0 (73) Ïàòåíòîîáëàäàòåëü(ëè): ÐÎÁÅÐÒ ÁÎØ ÃÌÁÕ (DE) R U (43) Äàòà ïóáëèêàöèè çà âêè: 10.12.2003 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: ÅÐ 0020069 À1, 10.12.1980. DE 4140147 A1, 09.06.1993. DE 4303030 A1, 02.09.1993. US 5387870 A, 07.02.1995. RU 2095617 C1, 10.11.1997. 2 2 5 6 0 9 1 R U (86) Çà âêà PCT: DE 00/03395 (27.09.2000) C 2 C 2 (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 06.05.2002 (87) Ïóáëèêàöè PCT: WO 01/25625 (12.04.2001) Àäðåñ äë ïåðåïèñêè: 101000, Ìîñêâà, Ì.Çëàòîóñòèíñêèé ïåð., 10, êâ.15, "ÅÂÐÎÌÀÐÊÏÀÒ", È.À.Âåñåëèöêîé (54) ÓÑÒÐÎÉÑÒÂÎ È ÑÏÎÑÎÁ ÇÀÆÈÃÀÍÈß ÄËß ÄÂÈÃÀÒÅËÅÉ ÂÍÓÒÐÅÍÍÅÃÎ ÑÃÎÐÀÍÈß (57) Ðåôåðàò: èíèöèèðóþò çàæèãàíèå â ñîîòâåòñòâóþùåì Íàñòî ùåå èçîáðåòåíèå îòíîñèòñ ê óñòðîéñòâó öèëèíäðå. Ïåðèôåðèéíûå óñòðîéñòâà âûïîëíåíû ñ è ñïîñîáó çàæèãàíè äë äâèãàòåë âíóòðåííåãî âîçìîæíîñòüþ èçìåðåíè ïàðàìåòðîâ, ñãîðàíè (ÄÂÑ). Òåõíè÷åñêèé ðåçóëüòàò ...

Burning time measurement method

System and method for controlling the performance of engine

本发明涉及用于控制引擎的性能的方法，包括步骤：检测第一信号的形式的离子电流，分析所述第一信号以确定至少一个性质，基于所述第一信号并优选基于所述至少一个性质来确定爆震索引，组合所述爆震索引和与引擎的性质或引擎的操作相关的多个因素，以得到引擎索引，和比较所述引擎索引和引擎的敏感度图，以确定改进引擎的操作所需的校正，和根据确定的校正来校正引擎的操作。本发明还涉及用于控制引擎的性能的系统。

Misfire detection device for internal combustion engine

Circuit for measuring the ionization current in the combustion chamber of an internal combustion engine

High pressure cord cover for internal combustion engine

Knocking detector for internal combustion engine

내용 없음. No content.

Method and system for detecting deposits on ignition plug (versions)

Изобретение относится к управлению двигателем автомобиля, использующим повторное зажигание в системе зажигания автомобиля для обнаружения образования нагара на свече зажигания. Техническим результатом является обеспечение выдачи рекомендаций о необходимости замены свечи зажигания на основе сведений о неисправности или ухудшении состояния, а не в зависимости от предварительно заданного периода времени или степени использования автомобиля. Предложены способ и система обнаружения образования нагара на свече зажигания. Cпособ включает направление протекания тока в первичную обмотку катушки зажигания системы зажигания в течение периода протекания тока через первичную обмотку катушки зажигания в ответ на команду протекания тока через первичную обмотку катушки зажигания от контроллера, уменьшение протекания тока для разряда начальной искры зажигания, и разряд дополнительных искр зажигания. Способ может дополнительно включать выборочное генерирование индикации рекомендации о необходимости замены одной или более свечей зажигания системы зажигания на основе первичного тока, измеренного после периода протекания тока через первичную обмотку катушки зажигания. 3 н. и 17 з.п. ф-лы, 4 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 691 115 C2 (51) МПК F02P 17/12 (2006.01) F02P 11/02 (2006.01) H01T 13/60 (2011.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F02P 17/12 (2018.08); F02P 11/02 (2018.08); H01T 13/60 (2018.08); G01M 15/042 (2018.08); F02P 3/04 (2018.08) (21)(22) Заявка: 2015148586, 12.11.2015 12.11.2015 (73) Патентообладатель(и): Форд Глобал Текнолоджиз, ЛЛК (US) Дата регистрации: 11.06.2019 18.11.2014 US 14/546,893 (43) Дата публикации заявки: 15.05.2017 Бюл. № 14 6236213 B1, 2001-05-22. US 2011144881 A, 201106-16. RU 2013105146 A, 2014-08-20. RU 2256091 C2, 2005-07-10. RU 2367813 C2, 200909-20. (45) Опубликовано: 11.06.2019 Бюл. № 17 2 6 9 1 1 1 5 R U (54) СПОСОБ И СИСТЕМА ОБНАРУЖЕНИЯ НАГАРА НА СВЕЧЕ ЗАЖИГАНИЯ ( ...

The control device of internal combustion engine

本发明涉及内燃机的控制装置，其目的在于通过适当地控制点火曲轴角和冷却水温这两者来高效地防止爆震的产生。根据爆震的有无来计算KCS学习值(56)，基于该值计算点火曲轴角(58)。根据爆震的产生使点火曲轴角(58)延迟。将冷却水的目标值(LT目标水温)向内燃机的冷却系统供给，基于KCS学习值修正LT目标水温。在KCS学习值大的情况下，与LT目标水温的在KCS学习值小的情况相比，增大对于LT目标水温的向使冷却系统的冷却能力提高的方向的修正。

Method for engine (options) and engine system

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

Devices for detecting misfires in internal combustion engines

본 발명의 목적은 제2측에서의 방전 전압이 변하는 기간에 오류 검출을 방지하여 정확한 불발 검출을 수행할 수 있는 내연기관에서의 불발을 검출하기 위한 장치를 제공하는 것이다. 상기 목적을 달성하기 위해 제공되는 내연기관에서의 불발 검출장치는 스파크 플러그의 방전기간에 스파크 플러그에 충전전압을 인가하기 위해 전기적으로 충전되는 점화 코일의 제1측으로부터 바이어스전압이 공급되어 이온전류를 흐르게하는 캐패시터와, 캐패시터로부터 흐른 이온전류의 검출에 따라 불발이 발생했는지의 여 부를 식별하는 불발 검출회로가 구비되며, 내연기관에서 불발 검출장치는 제1차코일의 한쪽 타단과 연산증폭기의 역전 입력단자 사이에 위치한 방전기간 검출 제너 다이오드를 포함하며, 이 방전기간 검출 제너 다이오드는 제너 다이오드의 제너전압보다 낮고, 캐패시터에 충전되도록 전압을 셋팅하는 제너전압을 가지며, 제너전압을 초과하여 흐르는 전류가 연산증폭기의 역전 입력 단자를 향해 흐르게 되는 방향에 접속된다.

Ignition apparatus for an internal combustion engine

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

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

Air-fuel ratio control method

Engine control device

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

Spark plug control system (versions) and spark plug control procedure

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

Ignition control system

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

Method (embodiments) and system for ignition control

FIELD: machine building.SUBSTANCE: invention relates to controlling a vehicle engine. Disclosed is a method for eliminating scale formation on an ignition plug, which includes alternating one or more combustion events at a combustion moment set with advance, with one or more combustion events at a nominal combustion torque. Nominal moment of ignition is provided for first number of combustion events and provides second early moment of ignition in cylinder for second number of combustion events. First early moment and the first number of combustion events are based on one of the following: output signal of ionisation sensor, temperature of supercharging air, temperature of ignition plug, engine load, octane number of fuel, air-fuel ratio, humidity, percentage of spent gas recirculation (EGR) and engine temperature. Second early moment and second number of combustion events are controlled based on one of following: ionisation sensor output signal, supercharging air temperature, spark plug end temperature, engine load, fuel octane number, percentage of EGR, air-fuel ratio, humidity and temperature of engine, after providing the first early moment of ignition and provision of rated ignition moment.EFFECT: technical result is reduced deposit on ignition plugs and reduced their overheating, as well as reduced detonation.18 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 702 901 C1 (51) МПК F02P 5/04 (2006.01) F02P 17/12 (2006.01) F02D 41/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F02P 5/1455 (2019.05); F02P 5/1512 (2019.05); F02P 17/12 (2019.05); F02D 35/021 (2019.05); F02D 41/22 (2019.05) (21)(22) Заявка: 2016129207, 18.07.2016 18.07.2016 Дата регистрации: (73) Патентообладатель(и): Форд Глобал Текнолоджиз, ЛЛК (US) 14.10.2019 (56) Список документов, цитированных в отчете о поиске: US 3788290 A, 1974-01-29. US 2014034012 A1, 2014-02-06. US 2015040938 A1, 2015-02-12. RU 2367813 C2, 2009-09-20. 30.07. ...

Internal combustion engine misfire detection device

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

А 2016121879 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) хх ааа \ (13) С & $ 5 % 5 С “\ З РИ "’ > 5 (51) МПК [о2р 4300 (2006.01) НО2Р 5/152 (2006.0Т) НОР 7/16 (2006.0Т) СО. 23/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016121879, 02.06.2016 (71) Заявитель(и): ТОЙОТА ДЗИДОСЯ КАБУСИКИ Приоритет(ы): КАЙСЯ (Р) (30) Конвенционный приоритет: 05.06.2015 ]Р 2015-114740 (72) Автор(ы): , КИТАЯМА Такэси (7Р), (43) Дата публикации заявки: 07.12.2017 Бюл. № 34 ЯМАСИТА Ёсиюки (1Р), Адрес для переписки: ФУРУЯ Йосихиро (1Р), 125009, Москва, а/я 332, ООО "Инэврика" МУРАТА Хироки (]Р) (54) УПРАВЛЯЮЩЕЕ УСТРОЙСТВО ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ (57) Формула изобретения 1. Управляющее устройство для двигателя внутреннего сгорания, содержащее: систему управления детонацией, сконфигурированную с возможностью вычисления найденного значения СУД согласно присутствию или отсутствию детонации в двигателе внутреннего сгорания так, что найденное значение СУД обновляется в направлении увеличения, когда детонация возникает, и обновляется в направлении уменьшения, когда детонации не возникает, при этом система управления детонацией сконфигурирована с возможностью вычисления угла зажигания на основе найденного значения СУД, и система управления детонацией сконфигурирована с возможностью зажигания свечи зажигания двигателя внутреннего сгорания при угле зажигания, полученном путем задержки угла зажигания в ответ на возникновение детонации; систему охлаждения, сконфигурированную для охлаждения двигателя внутреннего сгорания; и электронный блок управления, сконфигурированный с возможностью подачи управляющего значения, соответствующего целевому значению параметра охлаждения, в систему охлаждения, при этом система охлаждения выполняет охлаждение двигателя внутреннего сгорания в соответствии с управляющим значением, причем электронный блок управления сконфигурирован с возможностью корректировки управляющего значения на основе найденного значения ...

Transducer of board spark formation moment indication system of internal combustion engine

Сущность изобретени : датчик содержит заключенную в пластмассовый корпус 2 заземленную металлическую экранирующую оболочку в виде плоской шайбы 4 с радиальным разрезом. На шайбе 4 закреплена катушка 3 индуктивности , причем начало обмотки этой катушки соединено с оплеткой кабел  5, конец - с центральной его жилой, плоска  шайба 4 при размещении датчика на свечном проводе обращена к свече зажигани , а размеры плоской шайбы 4 и катушки 3 индуктивности св заны с диаметром свечного провода 1 определенными соотношени ми . 1 ил.

A Ignition system with more durable spark plugs

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

Electronic ignition system for internal combustion engine

描述了一种用于内燃机的电子点火系统(15)。该系统包括线圈(2)，线圈(2)具有初级绕组(2.1)和连接到火花塞(3)的次级绕组(2.2)，初级绕组(2.1)具有第一端子和第二端子。该系统进一步包括高压开关(4)，串联连接到初级绕组并具有控制端(I4c)，该控制端承载控制高压开关的打开或关闭的控制信号(S_ctr1)；包括第一开关(10‑1)，插入在电池电压(V_batt)和初级绕组的第一端子之间并具有第一驱动端子(I1c)，该第一驱动端子承载控制第一开关的打开或关闭的第一驱动信号(S1_drv)；包括第二开关(10‑2)，插入在初级绕组的第一端子和参考电压之间并具有第二驱动端子(I2c)，该第二驱动端子承载控制第二开关的打开或关闭的第二驱动信号(S2_drv)；第三开关(10‑3)，插入在初级绕组的第二端子和参考电压之间并具有第三驱动端子(I3c)，该第三驱动端子承载控制所述第三开关的打开或关闭的第三驱动信号(S3_drv)；以及包括驱动单元(5)。驱动单元被配置为，在从初级绕组的能量的充电阶段(T_chg)，用于产生具有关闭高压开关(4)的值的控制信号(S_ctr1)并产生具有关闭第一开关(10‑1)的值的第一驱动信号(S1_drv)，用于产生具有打开第二开关(10‑2)的值的第二驱动信号(S2_drv)，产生具有打开第三个开关(10‑3)的值的第三驱动信号(S3_drv)。驱动单元被进一步配置为，在从初级绕组到次级绕组的能量的转移阶段(T_tr)期间，用于产生(t2)具有打开高压开关(4)的值的控制信号(S_ctr1)，并且产生(t3)具有打开第一开关(10‑1)的值的第一驱动信号(S1_drv)。驱动单元被进一步配置为，在能量转移阶段之后的电离电流的测量阶段(T_ion)期间，用于产生具有打开高压开关(4)的值的控制信号，用于产生具有打开所述第一开关(10‑1)的值的第一驱动信号，产生(t4)具有关闭所述第二开关(10‑2)的值的第二驱动信号并且产生(t5)具有关闭所述第三开关(10‑3)的第三驱动信号。

Ignition system with combustion initiation detection

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

Patent RU2015148586A3

`7ВУ’” 2015148586” АЗ Дата публикации: 05.04.2019 Форма № 18 ИЗПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2015148586/07(074740) 12.11.2015 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 14/546,893 18.11.2014 05 Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) СПОСОБ И СИСТЕМА ОБНАРУЖЕНИЯ НАГАРА НА СВЕЧЕ ЗАЖИГАНИЯ (ВАРИАНТЫ) Заявитель: Форд Глобал Текнолоджиз, ЛЛК, 05 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) Е02Р 17/12 (2006.01) Е02Р 11/02 (2006.01) НОГТ 13/60 (2011.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) Е02Р11-17/12; НОТТ13/00-13/60, Е02043/00; 45/00 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): РУУРТ, Езрасепек, ]-Р1а Рав, К-РТОМ, КТРК5, РАТЕМТСОРЕ, Рабеагсв, ЭРО, ОРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) ...

SYSTEM AND METHOD OF DIAGNOSTIC OF THE IGNITION SYSTEM

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 117 204 A (51) МПК G01M 15/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017117204, 17.05.2017 (71) Заявитель(и): Форд Глобал Текнолоджиз, ЛЛК (US) Приоритет(ы): (30) Конвенционный приоритет: 03.06.2016 US 15/173,374 32 Адрес для переписки: 197101, Санкт-Петербург, а/я 128, "АРСПАТЕНТ", М.В. Хмара Стр.: 1 A 2 0 1 7 1 1 7 2 0 4 R U A (57) Формула изобретения 1. Способ работы системы зажигания, содержащий шаги, на которых: получают посредством контроллера данные о двигателе; оценивают наличие или отсутствие третьего случая пропуска зажигания в цилиндре на основании данных о двигателе посредством контроллера; и выявляют деградацию катушки зажигания и сжигают воздух и топливо в цилиндре посредством контроллера в ответ на отсутствие третьего случая пропуска зажигания в цилиндре в течение заранее заданного количества циклов цилиндра. 2. Способ по п. 1, в котором дополнительно увеличивают времена задержки двух катушек зажигания, подводящих энергию к единственной свече зажигания цилиндра, посредством контроллера. 3. Способ по п. 2, в котором времена задержки увеличивают в ответ на первый случай пропуска зажигания в цилиндре, определяемый посредством контроллера перед оцениванием наличия или отсутствия третьего случая пропуска зажигания в цилиндре двигателя в течение заранее заданного фактического полного количества циклов цилиндра. 4. Способ по п. 3, в котором отсутствие третьего случая пропуска зажигания в цилиндре двигателя имеет место после выявления второго случая пропуска зажигания в цилиндре двигателя в пределах заранее заданного количества событий сгорания в цилиндре до заранее заданного фактического полного количества циклов цилиндра. 5. Способ по п. 4, в котором времена задержки увеличивают выше порогового уровня в ответ на первый пропуск зажигания в цилиндре двигателя. 6. Способ по п. 1, в котором наличие или отсутствие третьего случая пропуска зажигания ...

Control device for internal combustion engine

FIELD: engines and pumps. SUBSTANCE: control device for internal combustion engine comprises a detonation control system, a cooling system and an electronic control unit. The detonation control system is arranged to calculate the value of ignition angle correction according to the presence or absence of detonation in the internal combustion engine so that the amount of ignition angle correction is updated in the direction of increase when detonation occurs and updated in the direction of decrease when no detonation occur. The detonation control system is configured for calculating the ignition angle based on the value of the ignition angle correction and igniting the spark plug of internal combustion engine at the ignition angle obtained by ignition angle delay in response to detonation occurrence. The cooling system is designed for cooling the internal combustion engine. The electronic control unit is arranged to supply a control value corresponding to the target value of the cooling parameter to the cooling system. The cooling system performs cooling of the internal combustion engine according to the control value. The electronic control unit is configured to adjust the control value based on the ignition angle correction value so that when the ignition angle correction value is increased, the correction value for correcting the control value is increased by the correction value in the direction in which the cooling capacity of the cooling system is increased. The cooling system of the internal combustion engine includes a first cooling system which primarily cools the cylinder block of the internal combustion engine, and a second cooling system which primarily cools the inlet periphery. The first cooling system and the second cooling system, respectively, include coolant flow channels independent from each other. The electronic control unit is configured to supply the control value to the second cooling system. EFFECT: prevention of detonation occurrence by ...

Knock detection device for an internal combustion engine

Eine Klopferfassungsvorrichtung für eine Verbrennungskraftmaschine wird angegeben, welche Klopfen von Rauschen genau unterscheidet, selbst wenn Rauschen mit einer Frequenzkomponente, die identisch einer Klopffrequenzkomponente ist, einem Ionenstromsignal überlagert ist. Die Vorrichtung weist Folgendes auf: eine Ionenstromerfassungsvorrichtung zum Anlegen einer Spannung an Elektroden, die in einer Verbrennungskammer der Verbrennungskraftmaschine vorgesehen sind, und zum Erfassen eines Ionenstromes, welcher zwischen den Elektroden über Ionen fließt, die der Verbrennung in der Verbrennungskammer folgend erzeugt werden; eine Klopferfassungsvorrichtung zum Erfassen von Klopfen, welches einem ungewöhnlichen Ansteigen von Druck oder Temperatur in der Verbrennungskammer der Verbrennungskraftmaschine folgend auftritt; eine Schwerpunktberechnungsvorrichtung zum Berechnen einer Schwerpunktposition einer mittels der Ionenstromerfassungsvorrichtung erfassten Ionenstromwellenform und eine Klopfermittlungsvorrichtung zum Ermitteln von Klopfen oder Rauschen in Übereinstimmung mit Ausgaben der Klopferfassungsvorrichtung und der Schwerpunktberechnungsvorrichtung. A knock detection device for an internal combustion engine is provided which precisely distinguishes knock from noise, even if noise with a frequency component, which is identical to a knock frequency component, is superimposed on an ion current signal. The apparatus includes: an ion current detection device for applying a voltage to electrodes provided in a combustion chamber of the internal combustion engine and for detecting an ion current flowing between the electrodes over ions generated following the combustion in the combustion chamber; a knock detection device for detecting knock that occurs after an abnormal rise in pressure or temperature in the combustion chamber of the internal combustion engine; a center of gravity calculation device for calculating a center of gravity position of an ion current waveform ...

Misfire detection device for spark ignition engine

Diagnostic of contamination state of plugs of radio frequency ignition system

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

Engine spark plug inspection method

Ion current sensing device

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