63results about "Other installations" patented technology

In certain embodiments, a significant improvement in H2-ICE performance can be achieved by a combination of active scavenging pre-combustion chamber technology and predictive model-based spark control to overcome the drawbacks of known combustion technologies. In certain embodiments, advanced combustion modeling and simulation of the ignition process, including spark events, arc movement and elongation, and resulting flame propagation, can be used to predict the relationship between spark energy / output, flow within the electrode gap, and flame growth (SOC) for different engines, different spark plugs, and various conditions. This information can be used to adjust the spark energy / output characteristics during the spark event of the same cycle in order to minimize SOC variations and significantly reduce the tendency of combustion anomalies such as backfire, knocking, and pre-ignition that prevent the achievement of high engine output density and efficiency.

An ignition coil system includes an ignition coil including a first primary coil, a second primary coil, and a secondary coil, and configured to generate a discharge current by electromagnetic induction with the first primary coil or the second primary coil, a first battery electrically connected to the first primary coil, a second battery electrically connected to the second primary coil, a first battery switch provided between the first primary coil and the first battery, and configured to block electrical power supplied from the first battery to the first primary coil, a second battery switch provided between the second primary coil and the second battery, and configured to block electrical power supplied from the second battery to the second primary coil, a first switch configured to adjust charging and discharging of the first primary coil, and a second switch configured to adjust charging and discharging of the second primary coil.

To suppress waste of electric power by making energizing time to an ignition coil appropriate.SOLUTION: A reference energization time is determined based on a voltage of a power supply and a rotation speed. On the basis of a condition related to the combustion state of the internal combustion engine, it is determined whether the combustion state of the internal combustion engine is in a relatively stable first operation state or in a relatively unstable second operation state. To judge whether an actual combustion state is good or bad by detecting the actual combustion state of an internal combustion engine. When it is determined that the combustion state is good in the first operation state (time t1), the energization time is largely reduced and corrected from the reference energization time to a predetermined level, and thereafter, when it is determined that the actual combustion state is bad, the energization time is gradually corrected to be longer by a minute amount (time t2, t3). In the second operation state, when it is determined that the combustion state is good, the energization time is corrected to be gradually shortened by a minute amount from the reference energization time.SELECTED DRAWING: Figure 3

This control system is for a divided-chamber type internal combustion engine having a main combustion chamber and a sub combustion chamber that is provided separate from the main combustion chamber by a wall. The control system comprises: an ignition device disposed in the sub combustion chamber; and a control device that controls the ignition device. The ignition device can change the electric discharge time between a first time and a second time longer than the first time, and can change the discharged electric current between a first electric current and a second electric current higher than the first electric current. The control device causes the electric discharge to occur for the second time when the divided-chamber type internal combustion engine is being operated at a low load, and causes the electric discharge to occur for the first time at the second electric current when the divided-chamber type internal combustion engine is being operated at a high load.

An ignition control device controls the alternate grounding of magnetos, or other ignition systems, in internal combustion engines utilizing two spark plugs per cylinder. The ignition control device can include two separate ignition systems to control each magneto. The ignition control device can alternate arcing of opposing spark plugs for each combustion cycle of the internal combustion engine.

The utility model relates to an engine with a plurality of ignition devices and a motorcycle with the engine. The engine with the plurality of ignition devices comprises a cylinder, a cylinder head assembly, a first spark plug and a cylinder head cover. The cylinder head assembly comprises a cylinder head, an air inlet rocker arm, an air exhaust rocker arm, an air inlet valve, an air exhaust valve and a cam shaft, the air inlet rocker arm, the air exhaust rocker arm, the air inlet valve, the air exhaust valve and the cam shaft are contained in the cylinder head, the cylinder head is provided with a combination seat face, a combustion chamber, an outer wall portion and a chain chamber, and the outer wall portion is provided with a first installation hole penetrating from the cylinder head to the combustion chamber. The first spark plug is installed in the first installation hole, and the cylinder head cover is locked and attached to the combination seat face. The cylinder head further comprises a second installation hole penetrating from the cylinder head to the combustion chamber and a sleeve communicated with the second installation hole, the second installation hole is located between the air inlet valve and the chain chamber or located between the exhaust valve and the chain chamber, the cylinder head cover further comprises a through hole, and a first end of the sleeve penetrates through the through hole. A second end of the sleeve is assembled on the cylinder head, the engine further comprises a second spark plug, and the second spark plug is assembled in the sleeve and installed in the second installation hole.

The purpose of the present invention is to suppress the generation of hydrocarbon from an internal combustion engine. This internal combustion engine control device controls an internal combustion engine including an ignition device having an ignition plug and an ignition coil that causes the ignition plug to generate a discharge. The internal combustion engine control device comprises a control unit that outputs an output signal to the ignition device. The output signal includes a multiple-ignition signal for preheating the ignition plug, a main ignition signal for igniting an air-fuel mixture by means of the discharge of the ignition plug, the main ignition signal having a frequency different from that of the multiple-ignition signal, and a pre-charge signal for pre-charging the ignition coil.

The invention relates to the technical field of ignition coils, and discloses a control method and system for an electric injection type motorcycle inductance type ignition coil, and the system comprises an engine, a knock sensor, a power supply device and a control part; the knock sensor is installed in an air cylinder of the engine. The control part is connected with the engine and the power supply device and comprises a base layer, a judgment layer, an optimization layer and a storage layer; wherein the base layer is configured to determine an initial ignition advance angle of the to-be-controlled ignition coil based on the analysis result; the judgment layer is configured to judge whether the initial ignition advance angle is optimized or not based on the air-fuel ratio; the optimization layer is configured to determine an optimization coefficient of the initial ignition advance angle according to the angle optimization factor and determine an optimized ignition advance angle; the storage layer is configured to store an angle optimization factor. The ignition accuracy of the ignition coil is improved.

To improve detection accuracy of preignition in a spark ignition engine.SOLUTION: A processor 31 of an ECU 30 detects occurrence of pre-ignition in a spark ignition engine that ignites a mixture in a combustion chamber 13 by spark discharge through a process of calculating a rotational fluctuation amount and self-ignition start timing of the engine 10 and a process of determining that pre-ignition has occurred when the rotational fluctuation amount is equal to or larger than a predetermined threshold value and the self-ignition start timing is earlier than predetermined timing. The self-ignition start timing is the timing when the temperature of the mixture in the combustion chamber 13 during a compression stroke reaches the ignition point of the mixture.SELECTED DRAWING: Figure 1

To provide ignition systems and methods for sensing a voltage of a battery and adjusting the duration of an over-dwell time automatically.SOLUTION: An ignition system may include an igniter circuit to control the current in a coil supplied by a battery based on an input signal from an engine control unit. To prevent overheating, the igniter circuit may be configured to shut down the current in the coil when the input signal is held high for an over-dwell period. The disclosed igniter circuit is configured with circuitry to automatically adjust the over-dwell period used based on a condition of the battery to prevent overheating without prematurely shutting down. The automatic adjustment includes indirectly monitoring the battery condition based on a current or voltage of a switching device coupled to the coil.SELECTED DRAWING: Figure 2

The purpose of the present invention is to improve the accuracy of control parameters for controlling a control target. This control device is provided with an explanatory variable setting unit, a Mahalanobis distance calculation unit, and a control parameter setting unit. The explanatory variable setting unit sets explanatory variables on the basis of time-series data indicating the status or state of a control target. The Mahalanobis distance calculation unit calculates a Mahalanobis distance on the basis of the explanatory variables. The control parameter setting unit sets control parameters for causing the control target to perform an operation according to the Mahalanobis distance.

A method for controlling an ignition coil for a spark plug of an internal combustion engine, wherein the ignition coil is associated with a respective engine cylinder in which combustion is to occur, wherein the ignition coil is driven by a spark demand pulse. The method comprises determining a spark demand pulse by determining an end time point of the spark demand pulse, determining a spark demand pulse length based on a historic battery voltage profile of the associated battery voltage, determining a start time point of the spark demand pulse based on the determined end time point and the determined spark demand pulse length, driving the ignition coil with the determined spark demand pulse. A benefit of the invention is that a spark demand pulse is generated that is more appropriate for the prevailing battery voltage at the time the demand pulse is generated. Therefore, the process provides a more reliable approach for controlling the generation of spark at a spark plug as controlled by an ignition coil under conditions where the battery voltage may be compromised, for example for an aged battery and / or during cold engine conditions.

Systems and methods for controlling an ignition system. The ignition coil assembly has an ignition transformer with a primary winding and a secondary winding and a local control unit. The spark device is connected with the secondary winding of the ignition transformer. The local control unit is adapted to adjust an ignition timing of the ignition transformer to generate a spark at the spark device to ignite a fuel-air mixture in the engine cylinder. The central control unit is in electronic communication with the local control unit to monitor the ignition transformer.

The utility model discloses a spark plug of a hydrogen internal combustion engine, the hydrogen internal combustion engine and a vehicle, and the spark plug is cylindrical integrally and comprises a central electrode, a ceramic body and a side electrode. The center electrode is cylindrical and located at the position where the axis of the spark plug is located, the ceramic body wraps the periphery of the center electrode in the radial direction of the center electrode, and the side electrode wraps the periphery of the ceramic body in the radial direction of the ceramic body. In addition, the tail end of the center electrode protrudes out of the tail end face of the side electrode, and the space between the center electrode and the side electrode is filled with the ceramic body. As the space between the central electrode and the side electrode is filled with the ceramic body, the ignition end of the spark plug does not have a spark plug bag area, a hook-like protruding structure of the side electrode of a traditional spark plug is omitted, the preignition phenomenon of a hydrogen internal combustion engine is reduced, and the spark plug is more suitable for being applied to the hydrogen internal combustion engine.

The present disclosure provides "systems and methods for preventing spark plug fouling in a variable displacement engine". Methods and systems are provided for reducing fouling of spark plugs in cylinders of a variable displacement engine configured to propel a vehicle. In one example, a method includes: in response to deactivation of one or more cylinders of the engine, providing a spark to the one or more cylinders at predefined positions respectively on one or more pistons coupled to the one or more cylinders, wherein the predefined positions include the one or more pistons being within a bottom dead center position threshold. In this way, spark plug fouling can be reduced or eliminated during cylinder deactivation conditions.

An event detection system (200) for determining occurrence of an event in an internal combustion engine (201) is disclosed, comprising: an ion current measurement circuit (107), a predetermined number of band limiter modules (203), a predetermined number of frequency domain conversion units (204), and an ion signal analyzer (206). The band limiter modules (203) generate band filtered ion current signals from received ion current signals generated during a spark event in a spark plug (106). The frequency domain conversion units (204) convert the band filtered ion current signals to a frequency domain to obtain digital ion current signals. The ion analyzer analyzes an amplitude of each of the digital ion current signals with an amplitude threshold of each of the digital ion current signals to determine occurrence of the event in the engine. Misfire detection ensures that the vehicle complies with OBD II regulatory specifications implemented by regulatory agencies.

The utility model discloses a flip type ignition device, and particularly relates to the technical field of ignition devices, the flip type ignition device comprises an ignition device main body, a protection assembly is arranged on the ignition device main body, the protection assembly comprises a protection cylinder arranged at the top of the ignition device main body and used for protection, and a protection cover used for protection is arranged at the top of the protection cylinder. The protection assembly is arranged, the protection cover can rotate along the axis point of the connecting position of the protection cover and the protection cylinder, so that the function of protecting all structures on the installation plate is achieved, the situation that fuel is ignited by sparks caused by careless touch is prevented, accidental fire is effectively avoided, and the safety is improved; the second ignition coil increases voltage to be high enough voltage, high-voltage current is distributed to the limiting cover through the distributor, the additional resistor and the short-circuit device are arranged to adjust energy of the limiting cover, and meanwhile the ignition wire and other circuits are protected against damage.

The utility model discloses an automobile ignition intensifier, which relates to the technical field of automobile appliances, and comprises an intensifier body, a first connecting line and a second connecting line which are arranged on the intensifier body, and a fixed terminal which is fixedly arranged on the first connecting line; the wire slot is arranged on the fixed terminal in an L shape; the fixing unit comprises a clamping part and an end part fixing part, the fixing terminal is arranged between the connecting wire and the wire, and the clamping part and the end part fixing part are arranged on the fixing terminal, so that the end part of the wire can be pre-fixed in an elastic buffering manner after the wire is wound on the spring, and the wire head of the wire can be quickly fixed; and the wire end of the wire is prevented from being pulled and broken, and then the wire end of the wire is prevented from falling off through one-time rigid fixation, so that the wire can be better fixed, and the disconnection failure of the ignition intensifier and the ignition coil is prevented.

The application provides a kind of carburetor type aviation piston engine ignition method: S1, obtains sensor signal A and sensor signal B;S2, according to sensor signal A and sensor signal B and preset calculation rule respectively calculates the ignition pulse width and ignition advance angle of ignition controller A and ignition controller B;S3, ignition controller A and ignition controller B are ignited according to the calculated ignition pulse width and ignition advance angle, and the output of detection is ignited.The application provides a kind of carburetor type aviation piston engine ignition method, and the output voltage value, current value and duration of real-time acquisition are compared with preset value, so as to effectively judge the various faults of ignition output, and protect the ignition driving device of ignition controller.The application compensates the state of missing firepower caused by the failure of ignition controller A by the data interaction of ignition controller A and ignition controller B and the adjusted ignition controller B.

The invention relates to the technical field of ignition coil manufacturing, and discloses a manufacturing method and system for an electric injection type motorcycle inductance type ignition coil, the system comprises a magnetic core assembly, a linear magnetic field excitation device, an area array electromagnetic detection unit and a control module, and the control module comprises a determination unit, a judgment unit, a correction unit and a manufacturing classification unit; the determination unit is configured to determine an initial magnetic core matching parameter according to the average inductance value; the judgment unit is configured to judge whether the coil winding of the to-be-detected ignition coil has performance abnormity or not; the correction unit is configured to correct the initial magnetic core matching parameters to obtain fine adjustment magnetic core parameters; and the manufacturing classification unit is configured to determine the manufacturing grade of the ignition coil to be detected according to the performance deviation type and quantity, and perform identification and classified packaging on qualified products. According to the invention, the magnetic core assembly can be accurately assembled, so that the performance of the ignition coil is improved.

An engine ignition system (100) can include a multifunction controller (101), and an exciter (103) operatively connected to the multifunction controller (101). The multifunction controller (101) can be configured to control the exciter (103) to output an ignition voltage. The multifunction controller (101) can be configured to perform at least one other engine control function.

To provide an ignition control system for an internal combustion engine which can appropriately shorten a conduction time to an ignition coil which supplies electric energy to an ignition plug to suppress shortening of life of the ignition plug by temporarily shortening the conduction time to the ignition coil and determining whether there is an accidental fire or not and further decreasing a margin for individual differences and variations of the ignition coil and the ignition plug.SOLUTION: A control device controls an ignition coil for a post-correction conduction time which is determined by subtracting a correction time from a base conduction time. When an update condition for the correction time is satisfied, conduction shortening control is executed where the correction time is temporarily prolonged and the post-correction conduction time is shortened until at least one cylinder is misfired. After that, conduction extension control is executed where the correction time is temporarily shortened and the post-correction conduction time is prolonged until all the cylinders are not misfired. If all the cylinders do not misfire, the conduction extension control is ended and the correction time at the time of ending is updated to a new correction time.SELECTED DRAWING: Figure 10

Provided is an ignition device for an internal combustion engine capable of preventing backfire to an intake pipe due to residual charge generated mainly by blow-off.　Even if blow-off occurs at the end of the discharging of an ignition coil 4, a secondary current stops, and a residual charge is generated in a secondary circuit 12, the residual charge is moved through the bypass passage 71 of a residual charge reducing means 7 on the basis of the potential difference between the ground GND and the potential of a first discharge path connection line L2c due to the residual charge, and the residual charge is converted into heat energy by electric resistance 72; therefore, the residual charge is quickly consumed and a voltage lower than the breakdown voltage is resumed.

This present disclosure discloses an ignition overcurrent protection device, which includes an overcurrent protection switch, a current detection circuit, and a controller. The overcurrent protection switch is electrically coupled between a starting power and a power-on connector; the power-on connector is configured for connecting to the automotive power. The current detection circuit is configured for detecting a current value flowing between the starting power and the power-on connector. The controller is coupled to the overcurrent protection switch and the current detection circuit. The controller is configured to determine a current range where the current value is located, and determine a preset time threshold corresponding to the current range, and control the overcurrent protection switch to be turned off when a duration of the current value reaches the preset time threshold. The present disclosure also provides a starting power equipment and ignition overcurrent protection. This present disclosure can set different trigger times of overcurrent protection according to difference in current during an ignition and start process. Therefore, it can be ensured that the automobile can be fired and started when there is no abnormality, and the overcurrent protection is effectively performed when there is an abnormality.

To improve detection accuracy of preignition in a spark ignition engine.SOLUTION: A processor 31 of an ECU 30 detects occurrence of pre-ignition in a spark ignition engine that ignites a mixture in a combustion chamber 13 by spark discharge through a process of calculating a rotational fluctuation amount and self-ignition start timing of the engine 10 and a process of determining that pre-ignition has occurred when the rotational fluctuation amount is equal to or larger than a predetermined threshold value and the self-ignition start timing is earlier than predetermined timing. The self-ignition start timing is the timing when the temperature of the mixture in the combustion chamber 13 during a compression stroke reaches the ignition point of the mixture.SELECTED DRAWING: Figure 1

The utility model relates to an engine with a plurality of ignition devices and a motorcycle with the engine. The engine with the plurality of ignition devices comprises a cylinder, a cylinder head assembly, a cylinder head cover, a sleeve, a first spark plug and a second spark plug. The cylinder head assembly comprises a cylinder head, an air inlet rocker arm, an air exhaust rocker arm, an air inlet valve, an air exhaust valve and a cam shaft, the air inlet rocker arm, the air exhaust rocker arm, the air inlet valve, the air exhaust valve and the cam shaft are contained in the cylinder head, the cylinder head is provided with a combination seat face, a combustion chamber, an outer wall portion and a chain chamber, and the outer wall portion is provided with a first installation hole penetrating from the cylinder head to the combustion chamber. And a second mounting hole penetrating from the cylinder head to the combustion chamber is formed between the air inlet valve and the chain chamber or between the exhaust valve and the chain chamber. The cylinder head cover is locked on the combination seat surface and comprises a through hole, the sleeve is communicated with the second installation hole, a first end of the sleeve penetrates through the through hole, and a second end of the sleeve is assembled on the cylinder head. And the first spark plug is mounted in the first mounting hole. And the second spark plug is assembled in the sleeve and is mounted in the second mounting hole. Wherein the tooth diameter of the first mounting hole is not equal to that of the second mounting hole, and the tooth length of the first mounting hole is not equal to that of the second mounting hole.