1810 results about "Ignition coil" patented technology

PCT No. PCT / US96 / 19898 Sec. 371 Date Apr. 21, 1999 Sec. 102(e) Date Apr. 21, 1999 PCT Filed Dec. 12, 1996 PCT Pub. No. WO97 / 21920 PCT Pub. Date Jun. 19, 1997A high power, high energy inductive ignition system with a parallel array of multiple ignition coils Ti (2a, 2b) and associated 600 volt unclamped IGBT power switches Si (8a, 8b), for use with an automotive 12 volt storage battery (1), the system having an internal voltage source (12) to generate a voltage Vc approximately three times the peal primary coil current with coils Ti of low primary inductance of about 0,5 millihenry and of open E-type core structure for spark energy in the range of 120 to 250 mj, the system using a lossless snubber and variable control inductor (6) to provide very high circuit and component efficiency and high coil energy density, in mj / gm, three times that of conventional inductive ignition systems, and high output voltage of 40 kilovolts with fast rise time of 10 microseconds.

The invention provides a work system of an electronically controlled gasoline engine, comprising an air intake system, a fuel oil supply system, an ignition system as well as an electronic control system; the electronic control system consists of a sensor section, an electronic control unit ECU and an actuator section, wherein, the sensor section includes a throttle position sensor, an intake pressure and temperature sensor and an intake temperature sensor which are arranged on an intake pipe of an intake system, a camshaft position sensor, a coolant temperature sensor and a crankshaft position sensor which are arranged on the engine, a front oxygen sensor arranged in front of a three-way catalyst converter on an exhaust pipe of the engine, and the components of the sensor section are all connected with the ECU, and the actuator section consists of an electric fuel pump, an oil sprayer, an idle speed regulating valve and an ignition coil; the components of the actuator section are all connected with the ECU, and the ECU includes a fuel injection control program, an ignition control program and an idle speed control program; the system adopts reasonable control strategy and has comprehensive control function, good integrated performance of control function and fine system portability.

The invention discloses an engine start-stop controlling method in the switching process of strong hybrid power operating modes of an automobile. The method comprises the following steps of: determining whether the current state meets the starting conditions of an engine according to the relative information acquired by a multi-energy controller, wherein the treatment on a battery pack state-of-charge (SOC) signal, an accelerator pedal signal and an automobile speed signal is controlled by a hysteresis loop; outputting moment relative to the rotating speed of the engine in the process of starting and stopping the engine by using a starting motor (a first motor); controlling an ignition coil relay of the engine by using the multi-energy controller so as to control the ignition time of the engine; and compensating the fluctuation of the moment output by a power system in the start-stop process of a generator by using a driving motor. The method of the invention has the advantages of realizing reliable, economic and efficient start-stop control over the engine, reducing the vibration in the start-stop process, improving the properties of the whole automobile, recovering kinetic energy in the stopping process of the engine in the stopping process and further improving the utilization ratio of the energy, along with simple and practicable implementation.

The invention discloses a purification system of vent gas of diesel engine. The purification system of vent gas of diesel engine essentially consists of a wall-flow diesel particle filter (DPF) and a heating regeneration device used for regeneration of the wall-flow diesel particle filter (DPF). The heating regeneration device consists of an electronic control unit (ECU), a combustion chamber and an ignition system. The ignition system comprises a spark plug, a high voltage wire and an ignition coil, a combustion air generating device and relevant pipes, ejector components and pipes, an oil nozzle, relevant temperature and pressure sensor and other gas paths, a valve of oil circuit and an automatic protection device. Compared with the prior art, the invention is characterized by reliable regeneration, efficient purification and no restriction of the way vehicle driving, etc.

An ignition coil assembly includes a core formed of magnetically-permeable material extending along a main axis, a primary winding disposed about the core, a secondary winding disposed on a secondary winding spool wherein at least one of the secondary winding leads is connected to a high-voltage connector terminal portion of the ignition coil assembly configured for connection to a remotely disposed spark plug, a case formed of electrical insulating material, and a magnetically-permeable shield disposed outwardly of the case. The secondary winding is progressively wound on the secondary winding spool, thereby eliminating failure modes associated with the segment-wound secondary windings, and, eliminating the need for pole pieces in the magnetic circuit, thereby reducing components, cost, weight, and size of the ignition coil assembly.

Detecting the magnetic field generated by a coil-on-plug (101) (aka coil-over-plug) using an adjustable probe (111). The probe (111) includes a signal detector (115) for detecting the field, a detachable adapter (117) configured to detachably attach to the housing (107) of the ignition coil at a specified location (113), and an adjustable connector (119 and 121) that adjustably connects the signal detector to the detachable adapter in a first predetermined position or in a second predetermined position. A detecting process and a diagnostic system using the probe are also disclosed.

A method for controlling an ignition system of an internal combustion engine having a primary firing pulse generator for charging a capacitor. An electronic switch is included for discharging the capacitor via an ignition coil to generate an ignition voltage. A microcomputer operates the switch to control the ignition timing of the generator. The microcomputer is in communication with a speed sensor that detects the rotational speed of the engine and a speed limitation control that limits the engine speed to a limitation speed below the clutch-in speed of an included centrifugal clutch. The speed limitation control is active or activated when one of either starting the engine or an operating problem of the power tool is detected. The speed limitation control is deactivated when a low speed state of the engine is detected.

An ignition system providing power and duration controlled ignition spark, comprises a spark controller, first switching energy accumulator, storage capacitor, and second switching energy accumulator with an ignition coil. The ignition system utilizes dual means of switching energy accumulation, internal energy transfer, and three means of energy release to the ignition spark, working in all possible combinations managed by means of the spark controller depending on engine operating conditions, and provides continuous bipolar ignition spark. Spark profile is regulated by means of control signals (2) and (3) based on their frequency, duty cycle, interrelation, and running time.

Methods and systems are provided for mitigating engine pre-ignition based on a feed-forward likelihood of pre-ignition and feedback from a pre-ignition event. In response to an indication of pre-ignition, a cylinder may be enriched while an engine load is limited. The enrichment may be followed by an enleanment to restore exhaust catalyst feed-gas oxygen levels. The mitigating steps may be adjusted based on engine operating conditions, a pre-ignition count, as well as the nature of the pre-ignition.

The object of the present invention is to provide a multifunction ignition device integrated with a spark plug for conserving space by integrating a spark plug, ignition coil, and fuel injection device in a single enclosure and for making a high fuel efficiency engine design possible and allowing spark plug electrode replacement, thereby reducing waste during plug maintenance. The multifunction ignition device of the present invention includes an ignition coil directly connected to a plug top of an internal combustion engine; the ignition coil, a fuel injection valve, and a fuel injection nozzle are housed in a single enclosure; and a center electrode and a ground electrode of the spark plug are removably mounted at the bottom end of the enclosure.

The invention discloses a method for actuating a spark plug (1) in an international combustion engine, wherein the spark plug (1) is assigned a first ignition coil (42) and second ignition coil (43). Triggered by a start signal (24), the primary winding (6) of the first ignition coil (42) is charged, and the primary winding (7) of the second ignition coil (43) is charged with a delay D, for which 0<=D, by supplying a direct current, wherein, whilst each primary winding (6, 7) , is charged, the respective secondary winding (4, 5) is blocked; the primary current supplied to the primary windings (6, 7) is measured; after a period T, the primary winding (6) of the first ignition coil (42) is discharged, and with the delay D the primary winding (7) of the second ignition coil (43) is discharged; the secondary current flowing through the spark plug (1) is measured; thereafter the primary windings (6, 7) of the first and second ignition coil (42, 43) start to be charged alternately when the secondary current falls below a threshold; the primary windings (6, 7) are discharged alternately when the primary current reaches an upper threshold; the above steps are repeated until the duration of discharge between two electrodes (1a, 1b) of the spark plug (1) reaches a predefined value Z.

An ignition system for an internal combustion engine includes an ignition coil, electric power supply circuit, a switching transistor, engine condition detecting element or unit that detects a signal relating to flow speed of air-fuel-mixture gas in the engine, and ignition control unit that controls the switching transistor to provide multiple ignition sparks in a predetermined ignition period. The ignition control unit controls the switching transistor to maintain each of the ignition sparks according to the signal relating to the flow speed of air-fuel-mixture gas in the engine to maintain sufficient spark energy for igniting the air-fuel mixture gas.

An ignition control device for controlling a multi-spark operation comprises: a secondary electric energy generator generating an electric energy to reignite an air fuel-mixture associated with an internal combustion engine during the multi-spark operation; a switching element capable of controlling the supplying of the electric energy to a primary coil of an ignition coil, the controlling causing a secondary current in a secondary coil of the ignition coil; an ignition timing signal generator generating an ignition timing signal based on a driving state of the engine; a multi-spark period setting element setting a multi-spark period of the multi-spark operation based on the ignition timing signal; and an ignition control element setting an amount of electric power supplied to the secondary electric energy generator based on the multi-spark period before the performing of the multi-spark operation is started, and for controlling the switching element.

The invention discloses a travel-increasing control system of a travel-increasing type electric automobile. An engine controller carries out dynamic control to the work of an oil injector and an ignition coil, and the engine controller calculates an external torque request according to a regulating torque, a reversed towing torque, a combusting torque and a target torque of an engine crankshaft of a current engine ahead of time and sends the external torque request to a travel-increasing controller. The travel-increasing controller and a generator or a motor response to the external torque request, engine rotating speed control is achieved through the balance control of the crankshaft torque, and the practical rotating speed output by the travel-increasing control system is in accordance with a target rotating speed. The travel-increasing control system of the travel-increasing type electric automobile can achieve the control to the rotating speed output by the travel-increasing control system without an electronic-control air damper, the engine can adopt a non-throttle air inlet mode, the control logic of the engine controller is simple, a single-cylinder or double-cylinder motorcycle engine controller and an economical engine controller can be used, and efficiency cost maximization can be achieved.

An engine controller for a vehicle is provided, the engine controller having a tilt angle sensor incorporated therein. The tilt angle sensor is operatively connected to an electronic control unit via a signal line. The electronic control unit is operable to temporarily interrupt the operations of a fuel injector and / or an ignition coil when a tilt angle signal is input via the signal line when the tilt angle signal indicates a tilt angle in excess of a predetermined value. As a result of this configuration, the number of required parts is reduced and available space on the vehicle is used effectively.

A control system for controlling the ignition of a plasma-jet spark plug provided in an internal combustion engine senses an operating condition of the internal combustion engine, and determines an ignition mode of the plasma-jet spark plug in accordance with the sensed operating condition. The control system performs an ignition control of breaking down the insulation across a spark discharge gap by applying a first electric power to the plasma-jet spark plug, and producing plasma in the vicinity of the spark discharge gap by applying a second electric power to the spark discharge gap in a state of dielectric breakdown. The control system performs this ignition control according to the ignition mode determined as mentioned above.

A plurality of spark electrodes are disposed in an arc shape on the surface or so as to be projected from the surface of an insulating member formed on a part of the wall face of a combustion chamber, and are formed so as to be in series electrically via discharging gaps.A spark plug is provided integrally with an injector, and the spark plug and the ignition coil are integrated. The three members are constructed as an integral unit, thereby improving installability to an engine.

An engine generating two or more ignition sparks by the same spark plug, which can avoid a torque reduction caused by misfire of main ignition, can start firing and burning at proper timing depending on operating conditions, and can reduce misfires. A novel controller and a novel ignition coil adapted for realizing that engine are also provided. One spark plug and at least one ignition coil are provided per cylinder. When performing a plurality of ignitions during the compression stroke in the cylinder, before main ignition to start firing and burning at proper timing depending on operating conditions of the engine, preliminary pre-ignition is performed to form a fire seed around the spark plug. The main ignition is then performed to cause main burning. Misfire is avoided, appropriate torque can be generated, and combustion stability can be improved.

A corona resistant thermoplastic composition comprises about 15 to about 85 wt % of a thermoplastic resin comprising polyarylene ether and polyarylene sulfide; about 10 to about 30 wt % glass fibers; and about 5 to about 51 wt % of a mineral filler having an average radius of gyration effective to produce a corona resistance of greater than 200 hours when continuously subjected to a voltage of 5000 volts and wherein the weight percents are based on total composition. The compositions find particular utility in automotive applications, for example in under-the-hood applications such as ignition coil cases, as copier components, circuit breaker components, electrical switches, insulators, electronic encapsulants, and other applications requiring enhanced corona resistance.

A high efficiency high voltage ignition coil with segmented high voltage bobbin (15) with the last few bays (16,17,18) having fewer secondary winding turns than the average and thicker flanges separating the bays, and further including an inductor (20) of inductance at least 0.5 mH with a core material which is lossy in the 100 KHz to 1 MHz range, the inductor located between the end of the high voltage winding and the spark gap (7b) so as to reduce the peak voltages across the last few high voltage bays immediately following the spark gap breakdown.

The invention provides automatic production equipment for an ignition coil housing. The automatic production equipment comprises a stamping machine, three sets of stamping dies arranged on the stamping machine, five sets of guide rods symmetrically arranged on the two sides of the stamping machine, a feeding device arranged at the feeding end of the stamping machine, and a carrying mechanism arranged on the guide rod on one side of the stamping machine, wherein the carrying mechanism comprises a movable base, a drive motor which is fixed to a guide rod in the middle and used for driving the movable base to move left and right, three carrying devices which are arranged on the movable base and used with the stamping dies for carrying the manufactured raw materials of the ignition coil housing, and a feeding mechanism which is arranged at the feeding end of the movable base and used with the feeding device for extracting the manufactured raw materials of the ignition coil housing. According to the automatic production equipment, the materials can be automatically fed, discharged and carried in a stamping process, so that the problems of manual feeding, carrying and stamping are effectively solved, the material deficiency can be effectively reminded in time, idle running of the equipment can be effectively avoided, and the product surface cannot be influenced in a production process.

The invention discloses a device for controlling the misfire of a spark ignition engine. The device comprises an ignition coil, a spark plug, an ionic current detection unit, a signal processing unit, a micro control unit and an ignition driving unit, wherein the ignition coil is used for providing an ignition power source to the spark plug; the spark plug is used for igniting in an air cylinder;the ionic current detection unit is used for detecting the ionic current of the ignition coil and sending the ionic current to the micro control unit; the signal processing unit is used for receivingan engine working state signal, processing the engine working state signal and then sending the processed engine working state signal to the micro control unit; the micro control unit is used for judging whether misfire happens or not according to the received ionic current and the engine working state signal; and the ignition driving unit is used for driving the ignition coil and controlling thespark plug to ignite if misfire exists. The invention also discloses a method for controlling the misfire of the spark ignition engine. According to the invention, the damage caused by misfire is minimized through misfire control.

The invention discloses a motorcycle engine electronic control fuel injection system, and comprises an electronic control unit, and a sensor and an executive mechanism connected with the electronic control unit; the sensor comprises a crankshaft position signal generator, a crankshaft position sensor and a throttle position sensor corresponding to the crankshaft position signal generator, an intake pressure sensor communicated with an air intake tube, an intake air temperature sensor communicated with the air intake tube, a cylinder body temperature sensor installed on the engine body, and an oxygen sensor arranged on an exhaust tube, wherein, the executive mechanism comprises an idle speed control valve, an electric fuel pump, a fuel pressure regulator, an oil ejector and an ignition coil. The invention has the advantages that the design is reasonable, the structure of the system is perfect, the operating performance is stable and reliable, and the engine combines the electronic control system with the exhaust gas aftertreatment technology, to lead the exhaust gas emission to meet the requirements of the motorcycle country more than three issues emission regulation as well as the more than Euro III exhaust emission regulation.

A system and method of managing the energy stored in a single ignition coil of a distributor inductive ignition for an engine. The engine comprises a plurality of cylinders and the ignition coil has a primary coil current. The ignition coil has a stored energy and a released energy during an ignition period. A pre-dwell time period and a pre-dwell current level is determined. The stored energy of the ignition coil and the released energy of the ignition coil are balanced during the ignition period at least in part by dwelling the primary coil current in the ignition coil at substantially the pre-dwell current level.

The invention relates to a uniform compression-ignition and splash ignition petrol engine burning information online detector, wherein it uses splash plug ion current to online detect the uniform compression-ignition state, to realize closed control of dual-mode burning. The invention is characterized in that: high-pressure ignition coil is serially connected to two one-way connectors, direct-current power module and detecting resistance; the splash plug is connected between two one-way connectors; the signal processing module is parallel connected to two ends of detecting resistance; the signal processing module processes the signal of detecting resistance to obtain one group of ion current character signal relative to burning; and it uses dynamic recursive program to obtain burning phase, instruction average effective pressure and mixing heating rate character value. The invention is characterized in that: it uses the ion current generated by splash plug, calculates the online internal burning phase, load, mixing heating rate character value and abnormal burning parameter, to directly support feedback information for the smooth transition between two burning modes.

A method to produce soft magnetic core formed by iron powder pressed in ignition coil of automobile uses iron powder and phenolic resin as a raw materials and the iron core is made in the shape of cylinders and rings which are formed by pressing with its manufacturing flow process as preparing iron magnetic powder to be formed by mould pressing-solidifying treatment. The detail process includes putting iron powder into alcohol solution of phenolic resin for obtaining the iron magnetic powder by granulating with sticking and cladding, putting the iron magnetic powder into a mould for obtainingthe primary piece by cold or warm pressing, carrying out the secondary solidifying as well as the treatments of antirust and insulation after the primary piece being processed by solidifying with thetemperature rising step by step.

A control apparatus for an internal combustion engine, includes: a crankshaft; a crank angle detection unit; a generator; and a control unit to which alternating voltage signals are input, that ascertains ignition timings based on crank signals, performs ignition control so as to spark the internal combustion engine at the ignition timings, performs polarity determination processing in which the control unit determines a polarity of the alternating voltage signal each predetermined cycle and determines a current polarity determination result, and performs reverse rotation detection processing in which the control unit obtains the current polarity determination result each time the crank signal is detected so that the control unit ascertains a polarity cycle of the alternating voltage signals and in which the control unit determines that the crankshaft is in reverse rotation and stops the ignition control.

A dual coil ignition system is provided. The dual coil ignition system includes a first inductive ignition coil including a first primary winding and a first secondary winding, and a second inductive ignition coil including a second primary winding and a second secondary winding, the second secondary winding connected in series to the first secondary winding. The dual coil ignition system further includes a diode network including a first diode and a second diode connected between the first secondary winding and the second secondary winding.

Methods and systems are provided for reducing pre-ignition incidence in a variable displacement engine during reactivation from a VDE mode. During conditions when one or more deactivated cylinders are reactivated to elevated engine loads, the reactivated cylinder(s) may be temporarily and preemptively enriched to reduce the possibility of cylinder pre-ignition. The preemptive enrichment is learned and further adjusted in a closed loop fashion.

A corona igniter assembly 20 comprises an ignition coil assembly 22, a firing end assembly 24, and a metal tube 26 connecting the ignition coil assembly 22 to the firing end assembly 24. A rubber boot 28 is disposed in the metal tube 26 and compressed symmetrically between a coil output member 30 of the ignition coil assembly 22 and an insulator 42 of the firing end assembly 24. Thus, the rubber boot 28 fills any air gaps and provides a hermetic seal between the ignition coil assembly 22 and the firing end assembly 24 to prevent unwanted corona discharge from forming from those air gaps.