System and method of ignition for internal combustion engine

FIELD: engines and pumps.

SUBSTANCE: invention relates to internal combustion engines (ICE), particularly to ignition systems, and can be used in the engine-building industry, and, in particular, in the automotive industry. The ignition of a combustion engine (1) includes circuitry (47) for generating the superimposed voltage, which, after the initiation of the discharge by applying a secondary winding of the discharge voltage, applies a superimposed voltage between the electrodes of the plug (29) of ignition in the same direction as the discharge voltage, to continue the discharge current and discharge cash performs ranging discharge activation superimposed with a high degree of exhaust gas recirculation. After switching from the activation range superimposed discharge with high exhaust gas recirculation range deactivation superimposed discharge with a low degree of exhaust gas recirculation occurs deactivation delay imposed on the discharge time delay T. Although the degree of exhaust gas recirculation, temporarily increased with a decrease in the intake of air control, valve after closing the exhaust gas recirculation, cash discharge continues for the delay time T to avoid interruption of ignition.

EFFECT: ignition system, which increases the reliability of the ignition.

12 cl, 17 dwg

 



 

Same patents:

FIELD: transport.

SUBSTANCE: engine ignition system comprises crankshaft position pickup, engine load pickup, air temperature pickup, engine temperature pickup, pickups of duration of fuel atomizers opening in first, second, third and fourth cylinders. Besides, it includes microprocessor, power supply, switches, ignition coils, pulse generators, ignition plugs fitted in engine cylinders and pressure pickups fitted therein.

EFFECT: higher power developed by the engine.

4 dwg, 1 tbl

FIELD: engines and pumps.

SUBSTANCE: proposed device comprises the modules that follow: injection point determination module; engine rpm determination module; engine load determination module and module for storage of control data on variation of optimum firing point relative to engine rpm and engine load as well as control on correction factor. These indices are related with optimum firing point relative to engine load at specific fuel injection moment. At call to control data, optimum firing point variation is defined by specific fuel injection moment and definite engine rpm. Here, departure between appropriate variations of optimum injection point is determined. At call to control data of correction factor, the latter is defined relative to definite engine load at specific fuel injection moment. Corrected optimum firing point variation is defined from correction factor and departure of optimum firing point.

EFFECT: reduced associate computation load at preparation of control map.

3 cl, 8 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to ICE combustion feedback systems. ICE (10) comprises multicylinder engine (12), load (14) engaged with engine via crankshaft (16), torque magnetic torque (24) arranged between engine (12) and load (14) and control module (26). Said torque magnetic transducer (24) can measure engine (12) torque to generate its output signal (28). Control module (26) is connected with torque magnetic transducer (24) to interact therewith. Control module (26) comprises data collection module (30) to receive torque signal (28) and to generate one or more control signals (32, 34, 36, 38) corresponding to one or more combustion parameters on the basis of torque signal (28). Data collection module (30) incorporates HF filter to generate detonation output signal configured to receive torque signal and to generate detonation output signal corresponding to engine one cylinder. Control module (26) can control one or more engine (12) control parameters on the basis of one or more combustion parameters for control over combustion in every engine (12) cylinder. Invention discloses the system design version.

EFFECT: higher accuracy of control.

16 cl, 6 dwg

FIELD: engines and pumps.

SUBSTANCE: invention can be used at designing control system for ICE 2 running on several types of fuel. Identification of knocks at changing the type of fuel consists in registration of characteristic of signal (ikr) describing the ICE housing noise and definition of base level of background noise (rkr) by filtration in low-pass filter (LPF) LPF filtration factor (TPF) is varied during transition from one fuel to the other. Note here that magnitude of said factor is set to lower value that moment. Occurrence of knocks is defined proceeding from threshold value (SW) to be coordinated at changing of fuel type. Proposed device comprises housing noise registration unit 5 to record the characteristic of signal (ikr) and knocks identification unit 4 to register aforesaid signal and to determine its base level (rkr). Adjustment is performed by changing the throttle position, amount of fed fuel or ignition dwell angle.

EFFECT: lower probability of false operation of control system.

7 cl, 3 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to ICEs. Particularly, it relates to engine adaptation of octane number by conversion of identified octane number. Proceeding from check advance ignition adjustment at engine operating range for definite octane number said operating range is divided into several zones (1-16). Note here every said zone comprises includes antiknock advance ignition correction magnitude of check adjustment. Changeover to check adjustment corresponding to lower octane number is performed. When threshold magnitude of advance correction cycle (S1_2-S16_2) is exceeded at one zone, or when zone counter wherein another threshold magnitude (S1_1-S16_1) is exceeded, multi-zone threshold (S3) is exceeded.

EFFECT: engine adaptation to fuel octane number.

6 cl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to internal combustion engines. Particularly, it relates to adaptation of engine to fuel octane number by conversion of the fuel identified octane number. Proceeding from spark advance check adjustment in the area of measured engine operating magnitudes, for definite octane number this area of measured engine operating magnitudes is divided into several zones (1-16); note here that every said zone comprises antiknock correction value for spark advance for said check adjustment. Here, changeover to check adjustment is performed corresponding to higher octane number: when incremental counter (TDC_CTR) of TDC number exceeds definite threshold (S3) if advance correction at current zone is smaller than definite threshold (S1_1-S16_1), or when zone number counter wherein advance correction cycle is smaller than the other threshold (S1_2-S16_2) exceeds multi-zone threshold (S3).

EFFECT: engine adaptation to fuel octane number.

7 cl, 3 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to ICE two-stroke engine rpm control means and processes. Particularly, it covers ignition dwell angle control relative to TDC. At preset engine rpm, ignition dwell angle can be adjusted step-by-step. Alternation between two ignition dwell angles can be performed in one or several steps. In case engine rpm exceeds the threshold magnitude, dwell angle can be adjusted.

EFFECT: efficient control over dwell angle, engine higher reliability and longer life.

17 cl, 3 dwg

FIELD: automotive industry.

SUBSTANCE: in the method, the device, the medium, and the vehicle of correction of combustion parameter the value of the parameter Pi is set (104) by interpolation between two pre-determined values Piref1 and Piref2 depending on the CO value of the engine mode and on the temperature of the engine coolant, and the values Piref1 and Piref2 are optimal for reducing polluting emissions when the control fuel is fed to the engine respectively to high volatility and low volatility.

EFFECT: limitation of polluting emissions during the blowdown of the vehicle engine.

8 cl, 5 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed ignition system comprises crankshaft position pickup 1, engine load pickup 2, air temperature up 3, engine temperature pickup 4, fuel injector open time 5, microprocessor 6, power supply 7, switches 8, 9, 10 and 11, ignition coils 12, 13, 14 and 15 and plugs 16, 17, 18 and 19.

EFFECT: increased torque at engine shaft and completeness of fuel combustion.

4 dwg

FIELD: transport.

SUBSTANCE: electronic control unit (ECU) of the engine executes a program with the following stages: detecting the value of the engine vibration (stage S102); detecting the wave shape of the engine vibration based on the said value (stage S104); calculating the quotient K of correlation if the engine rotational frequency NE is less than the threshold value NE (1), using the sum of the values where each value is calculated by substracting the positive reference value from the value taken in the shock shape model , the sum is used as the area S of the shock shape model; and calculating the quotient K of correlation if the engine rotational frequency NE is not less than the threshold value NE (1), using the whole area S of the shock shape model (stage S114); and determining whether the detonation occurred or not, using the quotient K of correlation (stages S120, S124). The quotient K of correlation is calculated by dividing the sum of remainders by the area S, where each remainder is a remainder between the value on the vibration wave shape and the value on the shock shape model.

EFFECT: creation of method and device for detecting the detonation which is capable of detecting precisely whether the detonation occurred or not.

24 cl, 28 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed generator comprises inductive-capacitative resonator RS2 to amplify high voltage, means to generate series of HF control pulses, voltage source VMT, capacitor C1 and voltage generator GENI with switching transistor M1. Control electrode G of the latter is connected with output of said means to generate series of HF control pulses. Source S of transistor M1 is connected with chassis. Transistor drain D feeds trains of control pulses to resonator RS2 in response to train of voltage pulses fed to control electrode G of transistor M1. Drain D of transistor M1 is connected with resonator RS2 via insulating transformer TRANS. Note here that said transformer is connected in parallel with capacitor C1 and voltage source VMT.

EFFECT: lower voltage at transistor output, sufficient voltage at resonator terminals.

7 cl, 1 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive ignition systems. Proposed system comprises control element, hand-operated actuator and electronic control unit designed to activate retention function. Control element may switch between OFF position whereat said element retains ignition in OFF position and ON position whereat said element retains ignition in ON state. Control unit keeps control element ON with retention function activated by supplying electric current to control element to prevent switching the latter from ON into OFF state. Method of ignition control consists in control unit activation function is activated under preset conditions to keep control element ON, thus preventing prevent switching the latter from ON into OFF state. Control unit keeps control element ON with retention function activated by supplying electric current to control element. Electronic control unit comprises actuator and machine-readable data carrier connected with actuator. Machine-readable data carrier comprises program to control ignition.

EFFECT: preventing manual switching off of ignition in certain conditions.

24 cl, 3 dwg

FIELD: engines and pumps.

SUBSTANCE: fuel mixture spark ignition method in the spark plug consists in ignition of fuel mixture with spark with the chosen required values of current force, length and duration of spark discharge. The required values of current force, length and duration of spark discharge are preliminarily chosen from conditions of required decrease of content of hazardous substances included in exhaust gases, decrease of fuel consumption and increase of ICE power.

EFFECT: providing complete fuel combustion in internal combustion engine, reducing the content of hazardous substances in exhaust gases, fuel consumption and increasing the engine power.

3 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to internal combustion engines (ICE), particularly to ignition systems and can be used in automotive engines. Proposed device comprises contact-type or electronic ignition system with ignition coil. Parallel circuit made up of capacitor and voltage converter with constant output voltage is connected in between ignition coil low-resistance secondary start and chassis ground. Circuit output voltage does not exceed plug spark gap breakdown voltage.

EFFECT: increased power and ignition spark duration to improve combustion mix.

2 cl, 1 dwg

FIELD: electrical engineering.

SUBSTANCE: invention relates to resonator supply with voltage over 200 V with frequency over 1 MHz and, particularly, to resonators incorporated with ignition systems. ICE RF-ignition system control device (2) comprises interface (21) to receiver ICE parametre measurement signals, interface (24) of command signal output, memory module (26) (MM), command signal frequency module (25) and command signal output module (27). Module (25) generates command signal depending upon measurement signals generated at reception interface and ratios saved in MM (26). Module (27) outputs certain-frequency command signal to output interface. Control device can also comprise interface (22) to receive power supply system parametre measurement signals (23) and MM programming interface (23). MM (26) saves ratios in the form of multivariable table with input data represented by measurement signals, or in the form of function relating integrated frequency of command signal with pre-determined measurement signals. Power supply system of RF-ignition system comprises control device (2) and supply circuit. The latter comprises switch (4) controlled by signal generated by device (2). The said switch sends intermediate voltage to supply circuit output at frequency governed by command signal. Ignition system comprises power supply system and resonator (5). Resonance frequency of resonator (5) exceeds 1 MHz. The said resonator is connected with power supply circuit output.

EFFECT: guaranteed resonator gain that allows plasma generation.

9 cl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: invention is related to ignition systems of internal combustion engines with inductance or capacitance accumulation of energy and may be used in ignition systems of internal combustion engines, and also in devices, where it is required, at small dimensions and cost of installation, to obtain spark discharge with high efficiency factor and low losses at high values of current and energy. Method for reduction of energy losses in systems of internal combustion engine ignition with inductance or capacitance accumulation of energy consists in the fact that energy of ignition coil discharge is reduced right up to the value sufficient only to obtain breakdown voltage. Resistance of high voltage circuit is reduced right down to values of less than 10 Ohm. Capacitor is connected serially with high-voltage winding of ignition coil. Capacitor discharges, through low resistances of high-voltage circuit and "broken" spark gap. Capacitor discharge is the main source of energy of electric spark discharge.

EFFECT: reduction of energy losses in ignition system, improvement of ignition process, increased speed and completeness of combustion of different fuel mixes, exclusion of detonation, improvement of power and ecological parametres of internal combustion engine.

1 dwg

FIELD: motor car construction.

SUBSTANCE: invention relates to automobile industry, particularly to electrical equipment of motor vehicles and sparking processes in internal combustion engine. Ignition system of internal combustion engine, consisting spark (9) plugs, voltage distributor (8), ignition coil (7), transistored commutator (6), power supply, sensor of electric signals (1), implemented in the form of stator (2) and rotor (3). Rotor (3) is mechanically connected to distribution shaft of motor. Stator (2) and rotor (3) of sensor (1) are implemented with two insulated segment cylindrical plates (4) and (5). Rotor plates (5) are connected to each other. One plate (4) of stator (2) is connected to power supply, and the second plate (4) of stator (2) is connected to input stage of commutator (6) and through additional resistance R1 to ground. Input stage of commutator (6) is implemented on the field-effect transistor VT.

EFFECT: design simplification of ignition system with transistor commutator, reduction in value and reliability improvement of its operation.

1 dwg

FIELD: ignition system at accumulation of energy in inductance coil.

SUBSTANCE: proposed system is provided with moving-coil transducer and emergency vibrator used as switch gear in case of failure of transistor switch of pulse sensor. Proposed transistorized ignition system includes ignition coil, additional resistor, transistor switch, pulse sensor and emergency vibrator. Ignition system is additionally provided with change-over relay, transistor switch, integrating circuit, coincidence gate, capacitor and resistor. Make contacts of change-over relay are connected between primary winding of ignition coil and input of emergency vibrator and break contacts are connected between output of transistor switch and primary winding of ignition coil. Change-over relay winding is connected in circuit of transistor switch whose input is connected via integrating circuit with output of coincidence gate whose one input is connected with input of transistor switch and other is connected via capacitor with output of transistor switch. Transistor switch circuit is provided with resistor and is connected with outputs connected with primary winding of ignition coil. Ignition system operates in two modes and primary circuit current is interrupted by transistor switch controlled by pulse sensor or by emergency vibrator. At interruption of primary circuit current by vibrator, ignition system operates in mode of continuous sparking on spark plugs.

EFFECT: ease of use of ignition system.

1 dwg

FIELD: engine engineering.

SUBSTANCE: method comprises accumulating energy required for igniting working mixture in the power accumulator, releasing energy in the device for generating igniting spark to generate spark discharge, repeated accumulating of energy starting before the end of releasing of the total energy accumulated, generating the next spark discharge, and measuring current in the spark discharge in the course of the generation of the spark discharge. When the current becomes lower than a given value, the repeated accumulating of energy begins. The device comprises energy accumulator for igniting working mixture, switching member for the energy accumulator that provides connection and disconnection of the circuit which connects the energy accumulator with a power source, control unit for control of the switching members, and device for determining the level and amount of energy accumulated in the energy accumulator. The control unit provides connection of the switching member at a moment when the level or the amount of energy accumulated in the energy accumulator becomes lower than a given value and provides its disconnection when it reaches again a given value.

EFFECT: enhanced reliability of ignition system.

12 cl, 2 dwg

The invention relates to electrical vehicles, in particular for the ignition systems of internal combustion engines with positive ignition of the fuel-air mixture

FIELD: engines and pumps.

SUBSTANCE: invention can be used in internal combustion engines with exhaust gas recycling. Proposed device is intended for ICEs, particularly, diesels. Diesel has intake manifold 10, exhaust manifold 11, intake and exhaust lines 2 and 3, first and second offgas recycling paths, turbo supercharger air cooler 20 is arranged upstream of intake manifold 10 and downstream of offgas second path 60. Turbo supercharger 4 incorporates compressor 40 fitted in intake lone 2 and turbine 41 arranged in exhaust line 3. There are control means 52, 62, 63 to control offgas flow rate and to distribute its between said first and second paths. Besides, this device comprises temperature transducer to measure turbo supercharger outlet gas temperature. Invention discloses also the compressor and air cooler protector, ICE and control device.

EFFECT: efficient protection against mechanical stresses caused by high temperature and fuel cracking.

11 cl, 1 dwg

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