1798 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.

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.

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 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 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.

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.

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.