374 results about "Ignition system" patented technology

The invention discloses an experimental device and an experimental method for combustible gas explosion discharge of a communicating container, and belongs to the field of combustible gas explosion protection. The experimental device comprises a communicated discharge container, a gas distribution system, a high-voltage ignition system, a data acquisition system, a high-speed schlieren system and a synchronous control system. The experimental device and the experimental method can be used for experimental research on combustible gas explosion release of the communicating container; the influence rules of factors such as static action pressure (Pstat), discharge caliber (Dv), discharge coefficient (Kv), spherical explosion container volume ratio (V1 / V2), communication pipeline length (L), communication pipeline diameter (D), fuel gas equivalence ratio (phi), ignition position (IIn) and ignition energy (E) on flammable gas explosion discharge overpressure and discharge flame are analyzed; and the formation factors of internal and external discharge overpressure peak values (a peak value Pb formed by rupture of a discharge diaphragm, a peak value Pex formed by external secondary explosion, a peak value Ph formed by Helmholtz oscillation, a peak value Pac formed by sound wave coupling and a peak value Pred formed by a maximum flame area), a discharge gas cloud structure, a discharge flame form and an external pressure wave evolution rule are explored.

The invention belongs to the technical field of coal field fire evolutionary analysis, and particularly provides a visual coal field fire evolutionary process analog simulation test device and method. The test device comprises a test bench, a physical similarity model, a fiber bragg grating temperature and stress integrated monitoring system, a multi-gas monitoring system, an image and video monitoring system and a computer analysis system. A plurality of opening frames are sequentially fixed to form test box bodies, the physical similarity model is arranged in the test box bodies, the inclination angle of the test box bodies is adjusted through an inclination angle adjusting mechanism, and the gas supply system and the ignition system are connected between the test box bodies. The fiber bragg grating temperature and stress integrated monitoring system, the multi-gas monitoring system and the image and video monitoring system are respectively in signal connection with the computer analysis system. According to the invention, visualization of coal field fire evolution processes under different conditions can be realized, and real-time monitoring of change rules of a temperature field, a seepage field and a fracture field in the coal field fire evolution processes under different conditions can be realized.

The invention relates to a composite injection hydrogen internal combustion engine and an injection control method thereof, and the composite injection hydrogen internal combustion engine comprises an air inlet system, a low-pressure air inlet channel hydrogen supply system, a high-pressure in-cylinder direct injection hydrogen supply system, an ignition system and a control system, the control system dynamically adjusts the ratio of low-pressure gas inlet channel hydrogen injection to high-pressure cylinder internal direct injection hydrogen by correspondingly controlling the working states of the gas inlet system, the low-pressure gas inlet channel hydrogen supply system and the high-pressure cylinder internal direct injection hydrogen supply system, and specifically, the ratio of low-pressure gas inlet channel hydrogen injection to high-pressure cylinder internal direct injection hydrogen injection is adjusted according to the rotating speed and target power of an engine. The proportion of air inlet channel injection and in-cylinder direct injection is dynamically adjusted. Compared with the prior art, a composite double-injection mode is introduced, more accurate combustion control can be achieved, higher flexibility and adaptability are provided, the performance and combustion efficiency of the hydrogen internal combustion engine can be optimized within a wider working condition range, and the combustion stability and fuel economy of the engine are effectively improved.

An apparatus, including a first circuit containing a first load; a first monitoring device which monitors a charge level of a first battery; a second circuit containing a second load; a second monitoring device which monitors a charge level of a second battery; a first switch capable of disconnecting the first battery from the first circuit; a first controller which controls the first switch; a second switch capable of connecting the first battery to the first circuit; a second controller which controls the second switch; a recharger; and a monitoring system which includes a monitoring computer. The monitoring computer detects a low charge level, generates a message, and transmits the message to a device or computer. The monitoring computer generates and issues a control signal which activates an ignition system or electric vehicle motor or propulsion system. The recharger recharges the first battery and second battery.

The invention discloses a combustion experiment system of a rotary fuel gas generator. The combustion experiment system comprises a rotary fuel gas generator experiment table, a supply system, a measurement and control system and an ignition system, the rotary fuel gas generator experiment table is respectively connected with the supply system, the ignition system and the measurement and control system; the supply system is used for stably supplying fuel and oxidant gas to the fuel gas generator on the rotary fuel gas generator experiment table, and the gas flow can be adjusted through a computer; the ignition system is used for igniting the rotary fuel gas generator, the measurement and control system is used for collecting and recording the temperature, pressure and rotating speed of the rotary fuel gas generator during working, and the gas flow and pressure can be adjusted through a computer, so that closed-loop control over the rotating speed of the rotary fuel gas generator is achieved. The combustion performance of the rotary gas generator under different flow rates and equivalence ratios can be simulated, closed-loop control can be carried out on the rotating speed of the rotary gas generator, and accurate control over the combustion process is achieved.

The invention discloses a device and a method for preparing silicon nitride powder with high sintering activity by a self-propagating method. The method comprises the following steps: mixing silicon powder and silicon nitride powder to obtain a mixed raw material; putting a porous plate into a crucible, scattering magnesium powder on the porous plate, and stacking the mixed raw material on the magnesium powder; sealing and vacuumizing the crucible, then filling nitrogen, repeating the operation for a plurality of times, and keeping the nitrogen atmosphere and pressure in the crucible; igniting the magnesium powder in the crucible, and starting a self-propagating combustion reaction; and cooling the crucible to obtain the silicon nitride powder with high sintering activity. The device comprises an ignition system, a self-propagating autoclave and a temperature detection module, one end of the ignition system and one end of the temperature detection module extend into the self-propagating high-pressure kettle. According to the method and the device, a continuous ventilation low-pressure self-propagating method is adopted, sufficient nitrogen is ensured to participate in the reaction, the raw materials are completely reacted, the yield and the purity of the product are ensured, the alpha-phase content of the product is relatively high, and the self-propagating device is simple in structure and convenient to operate.

The invention discloses a precise sensing control method for the combustion state of an internal combustion engine. The method comprises the steps that S1, parameters are collected; s2, establishing a neural network model, training the neural network model, and identifying the running state of the internal combustion engine; s3, a fuzzy language is established, and respective fuzzy adjustment amounts of a fuel injection system, a valve transmission system and an ignition system are obtained; s4, self-adaptive control models of the fuel injection system, the valve transmission system and the ignition system are established respectively, and the self-adaptive adjustment amount of the fuel injection system, the self-adaptive adjustment amount of the valve transmission system and the self-adaptive adjustment amount of the ignition system are obtained; and S5, carrying out weighted fusion on the fuzzy adjustment amount and the adaptive adjustment amount to obtain a final adjustment amount. By collecting multi-dimensional operation parameters in real time, extracting time domain and frequency domain features and combining a deep neural network model, precise recognition and early warning of the operation state of the internal combustion engine are achieved, detection and response can be made in time when the working condition of the internal combustion engine changes slightly, and the problem that a traditional control system is lagged in response is solved.

The invention discloses a fire extinguishing water spraying intensity detection method for propellant fire in the field of propellant fire extinguishing. A superspeed deluge system, an ignition system, a charging device and a weighing device are included. The ultra-high-speed deluge system comprises a high-speed detector, a control system, a quick opening valve, a sprinkler head, a water supply pipe, a pressure water supply device and an air supply device; the ignition system comprises a resistance wire, an ignition circuit and an ignition device.The fire extinguishing water spraying intensity detection method for the propellant fire is provided for solving the problems that the propellant fire cannot be extinguished through the water spraying intensity of an existing deluge system, and an ultra-high-speed deluge system cannot be effectively applied to a propellant production site. The problem that an existing propellant powder production place does not have a key parameter of fire extinguishing water spraying intensity is solved, effective application of the ultra-high-speed rain extinguishing technology in the propellant powder production place is achieved, and safety of production personnel and equipment is protected.

The invention discloses a metal product surface sealing device based on an underwater explosion cladding technology, and belongs to the technical field of metal surface treatment. A pressure-resistant cavity is formed in the sealing box body, a buffer supporting structure is arranged at the bottom of the sealing box body, and a fuel tank and a combustion-supporting gas input connector are arranged at the top of the sealing box body; the two oppositely-arranged fixing assemblies are arranged in the pressure-resistant cavity, and a base plate and a covering plate are arranged between the two fixing assemblies; the ignition assembly comprises a mounting shell, a pulse igniter, a safety interlocking module and a power management unit are integrally mounted in the mounting shell, and the gas circuit control system comprises a fuel conveying pipeline and a combustion-supporting gas input pipeline which communicate with a fuel tank. According to the device, efficient and safe operation of underwater explosion compounding is achieved through collaborative innovation of multiple assemblies, the adjustable fixing assembly guarantees the positioning precision of the base plate / covering plate, the intelligent ignition system avoids the ignition failure risk, gas path closed-loop control optimizes the explosion energy stability, and the service life of the device is prolonged through a buffer supporting structure.

The invention discloses an experimental device and an experimental method for gas / dust explosion flame-shock wave superposition coupling effect and combustible medium explosion transition induced by gas / dust explosion flame-shock wave superposition coupling effect under multi-parameter influence. Comprising a visual explosion system, a gas leakage diffusion system, a powder leakage diffusion system, an ignition system, a gas supply system, a powder spraying system, a discharge system, a displacement regulation and control system, a data acquisition system, a synchronous controller and a program control and data acquisition system. According to the experimental device and the experimental method for the gas / dust burning flame-shock wave superposition coupling effect under the influence of the multiple parameters and the induced combustible medium burning explosion transition thereof, the action processes of mutual impact, superposition, coupling and the like of detonation / detonation head-on flame-shock wave under the multiple working condition parameters can be realized; and the experimental study on the process of inducing the leakage diffusion combustible medium explosion transition and the critical condition thereof fills the technical blank of the study on the explosion flame-shock wave coupling effect process and the secondary disaster evolution mechanism induced under the influence of multiple parameters.

The invention discloses a visualized solid propellant high-pressure combustion turbulence device and a using method, and relates to the technical field of solid propellant high-pressure combustion devices.The high-pressure combustion turbulence device comprises a visualized high-pressure combustion chamber, a particle filtering device, an electric heating wire ignition system, a combustion turbulence device body, a flow channel controller and a medicine strip clamp; the medicine strip clamp is used for fixing a solid propellant medicine strip and reducing shaking of the solid propellant medicine strip; gas is introduced into the high-pressure combustion chamber to create different environmental pressures, and after the heating wire ignites the solid propellant, the combustion phenomenon is observed through four visual windows which are perpendicular to one another; the flow channel controller can prevent combustion condensed phase particles carried by airflow generated by the speed-adjustable fan from affecting the observation range of the window, and finally the condensed phase particles are filtered through the particle filtering device to purify internal circulation flowing gas. The device is reasonable in structure, has the characteristics of stability and reliability, and can effectively solve the problem that smoke particles are unfavorable for observation of the combustion phenomenon when the solid propellant is combusted.

An ignition diagnostic system and method for evaluating and optimizing the ignition performance of internal combustion engines (ICEs), such as those that burn hydrogen (H2) and / or other fuels. According to one example, the ignition diagnostic system and method use an artificial intelligence (AI) model with one or more machine learning (ML) algorithm(s) to identify, predict and / or otherwise evaluate abnormal combustion events, and to provide such information to an electronic control unit (ECU) in real-time. The ECU, in turn, can make combustion-related modifications to one or more components of the ignition system to optimize performance. By integrating the AI model into the ignition diagnostic system and method, a fast and simplified solution is provided that can be implemented across a wide variety of ICEs, including those that burn alternative fuels, where detecting abnormal combustion events and monitoring combustion-related parameters can be important.

The invention relates to a low-pressure ignition device and method for a torch in a thrust chamber of an open circulating liquid rocket engine. The ignition device comprises a cylindrical ignition chamber, an ignition fuel conveying system and an ignition oxidant conveying system, the ignition chamber is used for being arranged in a thrust chamber of the rocket engine, one end of the ignition chamber is open, the other end of the ignition chamber is provided with an igniter, and the outer surface of the ignition chamber is provided with a fuel runner and an oxidant runner in the axial direction. At least one group of fuel spray holes and oxidant spray holes are formed in the inner wall of the other end of the ignition chamber, the ignition fuel conveying system is communicated with one end of the fuel runner, the fuel spray holes are communicated with the other end of the fuel runner, the ignition oxidant conveying system is communicated with one end of the oxidant runner, and the oxidant spray holes are communicated with the other end of the oxidant runner. The method has the advantages that the ignition reliability of the liquid rocket engine is improved, the complexity of an ignition system is simplified, the reliability of the ignition process of the liquid rocket engine is improved, meanwhile, the system composition is simplified, the reliability of the system is improved, and the cost of the system is reduced.

The present invention relates to a vertically arranged nozzle reaction thrust structure with an array distribution, which includes a cabin section housing, a reaction thrust engine, a connecting rod, and an ignition system; the reaction thrust engines are symmetrically distributed in a circumferential array along the inner wall surface of the cabin section housing, and are connected to the cabin section housing through a connecting rod and a nozzle housing flanging structure; the ignition system is a non-electrically transmitted explosion ignition system, which includes an igniter and detonating cords. The non-electrically transmitted explosion ignition system is connected to the cabin section cable through the igniter end and is connected to the reaction thrust engines one-to-one through multiple detonating cords; the axis of the nozzle assembly is perpendicular to the axis of the combustion chamber; an adiabatic ring is bonded to the inner wall surface of the combustion chamber housing, and a converging ring is bonded to the interface of the combustion chamber housing; a throat liner is bonded to the inlet of the nozzle assembly. The present invention can adapt to the axial layout space of the projectile body, increase the effective payload, and improve the missile range under the strict limitation of the axial dimension.

An ignition method is provided for an internal combustion engine having an engine cylinder and a remote ignition chamber in fluid communication with the main combustion chamber via a tubing assembly. The remote ignition chamber and tube are charged with a first combustible charge gas. The main combustion chamber is charged with a second combustible charge gas. A plurality of high-voltage electrodes arranged along the tube are used to pretreat the first combustible charge gas to generate radicals therein. The pretreated first combustible charge gas is ignited to produce a deflagration flame. A plurality of high-energy discharge sparkplugs arranged along the tube are used to sense a property of the deflagration flame. When the sensed property of the deflagration flame is within predetermined threshold limits, at least one of the high-energy discharge sparkplugs is used to provide a transient high energy spark to the deflagration flame to stimulate deflagration-to-detonation transition.

The invention provides an axial jet ignition detonation system of a rotary detonation engine and a method of the axial jet ignition detonation system. The propellant supply system comprises fuel and oxidant supply equipment, a fuel nozzle, a circular seam and a fuel / oxidant premixing injection pipeline. The axial jet ignition system comprises an ignition plug, a pre-combustion chamber and an ignition jet device, the ignition plug is located at the bottom of the pre-combustion chamber, and the ignition jet device is connected with an outlet of the pre-combustion chamber. The engine body comprises a combustion chamber outer ring, a combustion chamber inner ring and a combustion chamber, the control system comprises a total monitoring controller and a sensor, and is used for monitoring and adjusting the flow of the fuel and the oxidant. By adjusting the intensity and angle of jet flow flame, quick and reliable detonation can be achieved, and the performance and reliability of an engine under various working conditions are improved. In addition, the arrangement mode of the jet ignition device is flexible and diversified, multiple times of repeated detonation can be effectively achieved, and stable operation of the engine under the complex working condition is guaranteed.

According to the system and the control method for improving the sinter quality of the sintering machine, the oxygen concentration in ignition combustion-supporting gas is actively and intelligently adjusted, and traditional passive adaptation is converted into active precise adjustment and control. And the mixing flow of the oxygen-enriched gas is dynamically adjusted according to monitored real-time data, so that the constant optimal ignition intensity is maintained. And then an optimized ignition system matched with oxygen-enriched ignition is designed, and generation of high-strength binding phase calcium ferrite is facilitated. And finally, through safety interlocking, when combustion-supporting air is abnormal, the oxygen content is too high and no coal gas is supplied, an oxygen-enriched pipeline stop valve needs to be closed, so that the system safety is guaranteed. The ignition uniformity and stability are improved, the ore return rate is effectively reduced, and a virtuous cycle is formed.

Road vehicle comprising a powertrain system; an ignition system for the powertrain system comprising in turn a slot integral with the passenger compartment of the road vehicle and configured to receive and accommodate a key for the ignition of the road vehicle; wherein the ignition system comprises a detection system, configured to detect the presence or absence of the key at the slot, and a control unit, which is connected to the detection system and to the powertrain system and is configured to enable the power supply to the powertrain system only when the key is detected at the slot.

A heating system that combusts solid fuel includes a firepot configured to hold the fuel to be combusted therein. The heating system also includes a contactless ignition system including a heating element configured to generate heat sufficient to combust the fuel within the firepot, and an element housing interfaced with the firepot. The element housing is configured to at least partially surround the heating element to prevent the heating element from contacting the fuel within the firepot.

The invention provides a method and device for controlling a vehicle to enter a hub rotating mode, electronic equipment and a storage medium, and belongs to the technical field of automobile test control, and the method comprises the steps that an ignition system IGN of a target vehicle is controlled to be powered on; when it is determined that the vehicle door of the target vehicle is opened and the main driving safety belt is tied, an ESC OFF switch lamp is controlled to be turned on, and an instrument ESC OFF indicator lamp is turned on; and if yes, the vehicle door of the target vehicle is controlled to be closed, the main driving safety belt is disconnected, the ESC OFF switch lamp is turned off, the instrument ESC OFF indicator lamp is kept turned on, and the target vehicle enters a hub rotating mode. According to the method, the entering mode of the rotating hub mode is simplified, the TCS function can be prevented from being triggered, and normal vehicle performance testing is facilitated.

The invention discloses a gas-solid two-phase explosion venting dynamic inhibition experiment system and method, and belongs to the field of explosion venting, and the gas-solid two-phase explosion venting dynamic inhibition experiment system comprises an explosion container, a gas distribution system, a dynamic ignition system, a data acquisition system, a dynamic water mist / powder explosion inhibition system and a computer. The dynamic water mist / powder explosion suppression system comprises a water inlet block which is movably clamped on the inner wall of the upper side of the explosion container, can move along a second strip-shaped hole in the wall and is sealed. The flat plate part is connected with a water inlet pipe (extending out of the container), and a cavity is formed in the flat plate part; and a third rubber ring is arranged at the arc plate part to seal the rotator. The water inlet block is communicated with the rotator through a first through hole and a second through hole respectively, and a water mist / powder sprayer is arranged at the lower end of the rotator. The water inlet block is provided with a support which is provided with a driving structure to enable the rotator to rotate. According to the device and the method, the difference between dynamic explosion suppression and static explosion suppression can be explored, and the coupling effect between dynamic explosion suppression and the explosion source position can be explored.

The invention relates to an ammonia fuel high-pressure injection and ignition system. The system comprises a cam shaft, an ammonia fuel common rail pipe, a first purge valve, a second purge valve, an ammonia fuel electronic control unit pump and an ammonia injection module of a dual-fuel injector. The oil injection module comprises a diesel oil combined high-pressure oil pump, a diesel oil common rail pipe and a dual-fuel injector; when the cam shaft rotates, the ammonia fuel electronic control unit pump is driven to feed pressurized ammonia fuel into the ammonia fuel common rail pipe, and high-pressure ammonia fuel in the ammonia fuel common rail pipe is injected into a combustion chamber of the internal combustion engine through an ammonia injection module of the dual-fuel injector. After the internal combustion engine is shut down, the first purge valve is used for introducing purge gas into the ammonia fuel common rail pipe, and residual ammonia fuel in the ammonia fuel common rail pipe is discharged from the second purge valve along with the purge gas; and the diesel oil combined high-pressure oil pump feeds the pressurized diesel oil into the diesel oil common rail pipe, and then the diesel oil is injected into a combustion chamber of the internal combustion engine through an oil injection module of the dual-fuel injector so as to ignite ammonia fuel.

The invention provides an ignition system of a methanol rarefied engine and a vehicle. The system comprises an ignition device and a control system. The ignition device comprises a main combustion chamber and a pre-combustion chamber; the main combustion chamber is provided with an air inlet for introducing air into the chamber and a main ejector for ejecting methanol; the pre-combustion chamber is provided with an ignition injector, a multi-electrode spark plug and a plurality of injection holes communicated with the main combustion chamber; the control system is configured to regulate and control the injection pressure, the injection amount, the injection moment and the ignition moment of the main combustion fuel and the ignition fuel in real time by monitoring the rotating speed, the air inlet amount and the environmental parameters of the engine in real time, so that stable ignition under different working condition parameters is achieved, and the air-fuel ratio under various working conditions is regulated and controlled. By optimizing the ignition system, the engine can be stably ignited and efficiently combusted under different environment working conditions, so that the economic performance of the methanol rarefied engine is further improved on the basis of realizing stable ignition.

The invention relates to the technical field of aero-engine ignition systems, and particularly discloses ignition device performance testing equipment which comprises an installation platform, two sets of testing electrode assemblies are oppositely arranged on the installation platform, and each testing electrode assembly comprises a supporting rod and an electrode unit arranged on the supporting rod. Each electrode unit comprises a mounting rod and a spherical electrode arranged on the mounting rod, the mounting rods are in sliding fit with the supporting rods, the spherical electrodes in the two groups of test electrodes are located between the supporting rods and are oppositely arranged at intervals, and a drainage assembly is arranged on the mounting platform. And the drainage assembly comprises a drainage needle capable of extending between the two spherical electrodes. According to the invention, the two spherical electrodes are oppositely arranged, and the gap between the two electrodes is changed and the drainage needle is arranged in the gap, so that the test inspection of the output voltage and the working capability of different types of ignition devices is realized.

A portable flamethrower is provided. It includes a fuel supply, including an externally powered fuel pump in flow communication with a nozzle and a fuel tank. An ignition system is provided to effect igniting of a stream of liquid fuel. An electronic control system is provided to effect selective operation of the ignition system and the fuel system, and preclude their operation if operation criteria are not met.

The invention provides a rotor type internal combustion engine and a design method thereof, and relates to the technical field of internal combustion engines. One or more air cylinders are arranged on the peripheral side of the rotor shell, an oil sprayer and a spark plug are arranged in each air cylinder, and a transition air channel is arranged between each air cylinder and the rotor chamber; the rotor is arranged in the rotor chamber; the air inlet channel is arranged on the air cylinder and used for introducing compressed air into the air cylinder, and an air inlet valve is arranged at the air inlet channel of the air cylinder; the exhaust passages are arranged on the side wall of the rotor shell and used for exhausting air to the outside from the rotor chamber, the number of the exhaust passages is consistent with that of the cylinders, and exhaust valves are arranged at the exhaust passages of the rotor shell; the fuel supply system is used for supplying fuel into the air cylinder; the ignition system is used for igniting the interior of the air cylinder; and the electric control system is used for controlling start and stop of the air inlet valve, the exhaust valve, the fuel supply system and the ignition system. The invention has the effects of reducing the energy loss of the internal combustion engine and enlarging the application range.

The present invention relates to a traditional cigarette with a heating structure similar to that of a heat-not-burn cigarette, which provides a heat source that utilizes a chemical reaction, and provides convenience to consumers by providing a cigarette stick equipped with an ignition system that can ignite regardless of the environmental conditions of the smoking area.

The present application belongs to the technical field of distributed cooperative control system, and discloses a multi-point high-precision cooperative ignition system for firework display, comprising: a central controller which non-timely distributes delay time stamps to a plurality of distributed ignition modules and broadcasts a content-neutral synchronization event at a starting moment; the distributed ignition module starts a local timer upon detecting the synchronization event and autonomously counts down according to the pre-stored delay time stamp to execute ignition, the present application decentralizes intelligent time decision to the terminal, avoids the interference of signal physical transmission delay on the overall ignition precision of the system, and replaces the complex real-time clock synchronization and delay compensation mechanism in the traditional control system, so that the architecture simplifies the physical design and deployment complexity of the system, and improves the synchronization robustness and scalability when a large number of nodes work cooperatively.

An ignition system for a combustion engine, includes a combustor having an igniter configured to receive a series of electrical current pulses, and, responsive to each electrical pulse, to generate a spark. A sensor is configured to detect each electrical pulse to provide a signal indicative of the electrical pulse to a controller. The controller is configured to determine, prior to an injection of a fuel into the combustor, a spark rate of the igniter, determine whether the spark rate satisfies a spark rate threshold, and in response to a determination that the spark rate satisfies the spark rate threshold, initiate an injection of the fuel into the combustor.

A system and method for operating an ignition system. An ignition transformer has primary and secondary windings. A spark apparatus is connected with the secondary windings of the ignition transformer. One or more characteristics of a spark generated by the spark apparatus is provided. An electronic control unit is adapted to control the ignition transformer, such that, based on an identification of the spark using the one or more characteristics and the spark reference data, the electronic control unit sends control signals to the ignition transformer to modify the one or more characteristics of the spark. Modification of the one or more characteristics may occur in a same spark cycle as measurement of the one or more characteristics.