Method of controlling capacitor ignition unit with induction coil as part of ignition system

FIELD: electricity.

SUBSTANCE: method for controlling an ignition capacitor with an induction coil as part of an ignition system, which consists in measuring the time interval between consecutive pulses of the discharging current of the storage capacitor to the spark plug, simultaneously with measuring the time interval between consecutive pulses of the discharge current of the storage capacitor to the spark plug during the ignition system operation, measuring the average value of the current consumed by the ignition unit, detecting the short-term increase in the average value of the current consumed and the subsequent increase in the current value of the time interval between the consecutive pulses of the discharge current of the storage capacitor to the spark plug; in the presence of the short-term increase of the average value of the current consumed by the ignition unit and the subsequent increase in time interval between the consecutive pulses of the discharge current of the storage capacitor to the spark plug, decision to replace the ignition unit is made.

EFFECT: increasing the depth of the efficiency control of ignition units of capacitor ignition systems of aircraft engines in order to ensure their operation according to their technical condition and to reduce the costs for supporting the life cycle of the engine during the operation phase.

5 dwg

 



 

Same patents:

FIELD: motors and pumps.

SUBSTANCE: in control device for internal combustion engines the pressure sensor (34) inside the cylinder is intended for measurement of pressure P in the cylinder of the internal combustion engine (10). When consecutive or almost consecutive premature ignition is detected by the pressure sensor in the cylinder (34) the control unit hinders the control of suppression of consecutive occurrence of premature ignition when Pmax during premature ignition is low, in comparison with when Pmax during premature ignition is high.

EFFECT: ensuring balance between prevention of excessive rise of the piston temperature and prevention of deterioration of various operational characteristics of internal combustion engines as a result of control applied for suppression of abnormal combustion even when abnormal combustion happens consistently or almost consistently during a series of cycles.

5 cl, 11 dwg

FIELD: electricity.

SUBSTANCE: method consists in software setting and subsequent execution of duration (indirectly of energy as well) of each separate spark discharge in any range of ICE rpm using a controller ROM of which is loaded with programs with constants of programming of functional dependence of this duration from the combination and intensity of the operating modes of ICE involved in its control and selected from its rpm, load, threshold temperature of cooling liquid, depth of leaning (quality) of fuel and air mix taking into account the brand of motor fuel. During ICE operation the controller processor selects according to technical information of sensors of selected modes in the ROM working program the constant of programming of optimum duration of forthcoming spark discharge with the subsequent execution of this parameter in each ICE cylinder. With the guaranteed rate of repetition of spark discharges limited only by technical capability of its practical use by the specific type of ICE and with indirectly adjustable energy considerably exceeding limiting capabilities of dominating systems with the normalized time of its accumulation in magnetic field of the ignition coil.

EFFECT: improvement of efficiency of ICE operation for the successful solution of the essential and predicted tasks of their modernization connected with improvement of environmental safety, thermal efficiency and specific dimensional power.

6 cl, 8 dwg

FIELD: engines and pumps.

SUBSTANCE: in testing ICE 3 operating conditions parameters of fuel 9 injection into engine cylinders are generated proceeding from required torque. Said parameters are used to estimate ICE actual torque Mist. For testing normal operating conditions of engine control unit actual torque Mist is analysed depending upon required torque.

EFFECT: control over engine functions irrespective of built-in multi-parameters performances.

8 cl, 3 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed method comprises measuring time interval between reservoir capacitor discharge current sequential pulses that follows to ignition plug. Time interval exceeding preset magnitude allows deciding on ignition system integrity. Note here that measured is the time interval between discharge current pulses caused solely by commutation of power accumulated at reservoir capacitor that exceeds check magnitude.

EFFECT: higher validity of control, condition-based operation.

2 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 ICE spark failure identifier, vehicle with such identifier and method to identify ICE spark failure. ICE spark failure identifier comprises: turn position determination assembly, assembly to calculate rpm at singular turn angle or assembly to calculate angular speed at singular turn angles and assembly to identify spark failures. Assembly to identify spark failures reveals if ICE cylinders are subjected to spark failure conditions by procedures intended for identification of ICE spark failures. Procedures intended for identification of ICE spark failures comprise first and second procedures. First procedures are used in case ICE drive point (rpm Ne and torque Te) does not belong in rear section resonance region (s120). Second procedures are used in case ICE drive point (rpm Ne and torque Te) belong in rear section resonance region (s130). First procedures proceed from rpm irregularity at singular turn angle or angular speed irregularity at singular turn angles. Second procedures proceed from rpm irregularity at singular turn angle or angular speed irregularity at singular turn angles after filtration. Filtration is performed by HF filters. Vehicle comprises multi-cylinder ICE, rear part and spark failure identifier. Rear part is mounted on semi-axle side via damper. Spark failures are revealed by first or second procedure for rpm at singular turn angles.

EFFECT: higher accuracy and validity of determination.

35 cl, 20 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to automotive industry. Proposed device comprises preliminary determination section, confirmation section and modification section. Ignition plug (8) is supplied by storage battery (7) in ignition period and charged by power generated by AC generator (12). Preliminary determination section defines probability of faulty operation of ignition plug proceeding from variation in AC generator output power at termination of ignition period. Probability of ignition plug fault will be determined if variation in AC generator output does not exceed check value. The latter represents a set of values intended for revealing faulty conditions of operation of ignition plug. In determining the section fault probability, confirmation section is temporarily cuts in ignition plug (8) at the end of ignition period. If AC generator output power does not exceed preset limits, generator output power variation is compared with check values "a", given ignition plug (8) is connected. If variation of generator output power does not exceed check value, ignition plug fault is considered confirmed. Proceeding from detection of faulty operation of ignition plug, modification section increases top limit of appropriate range. Confirmation section can determine check values of output power variation directly at the start of ignition plug connection or after it. Connection is considered available, if AC generator outputs sufficient power. Modified top limit represents maximum possible power output of AC generator (12).

EFFECT: valid detection of spark plug faults.

5 cl, 5 dwg

FIELD: automotive industry; automobile service stations.

SUBSTANCE: invention relates to technical diagnostics and it can be used for diagnosing condition of automobile electrical equipment at mass production. Proposed method comes to measuring instantaneous values of current in transient process at delivery of dc voltage to automobile electrical equipment and calculating time constant basing on results of measurements. By analyzing received value and comparing it with maximum tolerable values, one can evaluate condition of electrical equipment and reveal presence of troubles.

EFFECT: improved efficiency of diagnosing owing to use time constant of current at transient process by delivering dc voltage into electrical equipment circuit as said time constant depends only of parameters of electrical equipment under checking.

2 dwg

FIELD: engine engineering.

SUBSTANCE: method comprises changing angular position of the distributor shaft, determining angular positions of the shaft that corresponds to the transitions from the unclosed condition to the closed condition and from the closed condition to the unclosed condition, and determining the angle of closed condition of the contacts from the difference of the angular positions determined. The angular position of the distributor shaft is changed by rotating the crankshaft of the internal combustion engine.

EFFECT: enhanced reliability and reduced cost.

1 dwg

FIELD: diagnosing of contact battery ignition systems of gasoline engines; check of electric circuit elements in other fields.

SUBSTANCE: proposed method includes measurement of characteristics of primary and secondary voltages in ignition system circuits. Then areas for local diagnostics having functional connection with parameters of technical state of ignition system are set according to measured characteristics. During analysis of preset areas of local diagnostics, groups of diagnostic signs are selected and numerical values are determined for these groups at various modes of check. Then magnitudes of diagnostic signs are compared with rated values and are coded: each diagnostic sign is given diagnostic code according to results of comparison. Diagnostic codes thus obtained are compared with set of codes in diagnostic matrix and conclusion on technical state of ignition system is taken according to results of comparison in automatic mode.

EFFECT: enhanced reliability and efficiency of diagnostics; increase in fuel saving; low toxicity of exhaust gases.

6 dwg

FIELD: engine engineering.

SUBSTANCE: device comprises central control unit and peripheral units each for one cylinder of internal combustion engine. The central control unit sends digital control signals to periphery units on which the peripheral units ignites mixture in the corresponding cylinder. The peripheral units measure the parameters which characterize their condition and send the test digital signals to the central control unit. The central control unit analyses and process the test signals from the peripheral units and determines time interval between the control signals and test signals.

EFFECT: enhanced reliability of ignition testing.

36 cl, 12 dwg

FIELD: diagnosing of contact battery ignition systems of gasoline engines; check of electric circuit elements in other fields.

SUBSTANCE: proposed method includes measurement of characteristics of primary and secondary voltages in ignition system circuits. Then areas for local diagnostics having functional connection with parameters of technical state of ignition system are set according to measured characteristics. During analysis of preset areas of local diagnostics, groups of diagnostic signs are selected and numerical values are determined for these groups at various modes of check. Then magnitudes of diagnostic signs are compared with rated values and are coded: each diagnostic sign is given diagnostic code according to results of comparison. Diagnostic codes thus obtained are compared with set of codes in diagnostic matrix and conclusion on technical state of ignition system is taken according to results of comparison in automatic mode.

EFFECT: enhanced reliability and efficiency of diagnostics; increase in fuel saving; low toxicity of exhaust gases.

6 dwg

FIELD: engine engineering.

SUBSTANCE: method comprises changing angular position of the distributor shaft, determining angular positions of the shaft that corresponds to the transitions from the unclosed condition to the closed condition and from the closed condition to the unclosed condition, and determining the angle of closed condition of the contacts from the difference of the angular positions determined. The angular position of the distributor shaft is changed by rotating the crankshaft of the internal combustion engine.

EFFECT: enhanced reliability and reduced cost.

1 dwg

FIELD: automotive industry; automobile service stations.

SUBSTANCE: invention relates to technical diagnostics and it can be used for diagnosing condition of automobile electrical equipment at mass production. Proposed method comes to measuring instantaneous values of current in transient process at delivery of dc voltage to automobile electrical equipment and calculating time constant basing on results of measurements. By analyzing received value and comparing it with maximum tolerable values, one can evaluate condition of electrical equipment and reveal presence of troubles.

EFFECT: improved efficiency of diagnosing owing to use time constant of current at transient process by delivering dc voltage into electrical equipment circuit as said time constant depends only of parameters of electrical equipment under checking.

2 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to automotive industry. Proposed device comprises preliminary determination section, confirmation section and modification section. Ignition plug (8) is supplied by storage battery (7) in ignition period and charged by power generated by AC generator (12). Preliminary determination section defines probability of faulty operation of ignition plug proceeding from variation in AC generator output power at termination of ignition period. Probability of ignition plug fault will be determined if variation in AC generator output does not exceed check value. The latter represents a set of values intended for revealing faulty conditions of operation of ignition plug. In determining the section fault probability, confirmation section is temporarily cuts in ignition plug (8) at the end of ignition period. If AC generator output power does not exceed preset limits, generator output power variation is compared with check values "a", given ignition plug (8) is connected. If variation of generator output power does not exceed check value, ignition plug fault is considered confirmed. Proceeding from detection of faulty operation of ignition plug, modification section increases top limit of appropriate range. Confirmation section can determine check values of output power variation directly at the start of ignition plug connection or after it. Connection is considered available, if AC generator outputs sufficient power. Modified top limit represents maximum possible power output of AC generator (12).

EFFECT: valid detection of spark plug faults.

5 cl, 5 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to ICE spark failure identifier, vehicle with such identifier and method to identify ICE spark failure. ICE spark failure identifier comprises: turn position determination assembly, assembly to calculate rpm at singular turn angle or assembly to calculate angular speed at singular turn angles and assembly to identify spark failures. Assembly to identify spark failures reveals if ICE cylinders are subjected to spark failure conditions by procedures intended for identification of ICE spark failures. Procedures intended for identification of ICE spark failures comprise first and second procedures. First procedures are used in case ICE drive point (rpm Ne and torque Te) does not belong in rear section resonance region (s120). Second procedures are used in case ICE drive point (rpm Ne and torque Te) belong in rear section resonance region (s130). First procedures proceed from rpm irregularity at singular turn angle or angular speed irregularity at singular turn angles. Second procedures proceed from rpm irregularity at singular turn angle or angular speed irregularity at singular turn angles after filtration. Filtration is performed by HF filters. Vehicle comprises multi-cylinder ICE, rear part and spark failure identifier. Rear part is mounted on semi-axle side via damper. Spark failures are revealed by first or second procedure for rpm at singular turn angles.

EFFECT: higher accuracy and validity of determination.

35 cl, 20 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: proposed method comprises measuring time interval between reservoir capacitor discharge current sequential pulses that follows to ignition plug. Time interval exceeding preset magnitude allows deciding on ignition system integrity. Note here that measured is the time interval between discharge current pulses caused solely by commutation of power accumulated at reservoir capacitor that exceeds check magnitude.

EFFECT: higher validity of control, condition-based operation.

2 dwg

FIELD: engines and pumps.

SUBSTANCE: in testing ICE 3 operating conditions parameters of fuel 9 injection into engine cylinders are generated proceeding from required torque. Said parameters are used to estimate ICE actual torque Mist. For testing normal operating conditions of engine control unit actual torque Mist is analysed depending upon required torque.

EFFECT: control over engine functions irrespective of built-in multi-parameters performances.

8 cl, 3 dwg

FIELD: electricity.

SUBSTANCE: method consists in software setting and subsequent execution of duration (indirectly of energy as well) of each separate spark discharge in any range of ICE rpm using a controller ROM of which is loaded with programs with constants of programming of functional dependence of this duration from the combination and intensity of the operating modes of ICE involved in its control and selected from its rpm, load, threshold temperature of cooling liquid, depth of leaning (quality) of fuel and air mix taking into account the brand of motor fuel. During ICE operation the controller processor selects according to technical information of sensors of selected modes in the ROM working program the constant of programming of optimum duration of forthcoming spark discharge with the subsequent execution of this parameter in each ICE cylinder. With the guaranteed rate of repetition of spark discharges limited only by technical capability of its practical use by the specific type of ICE and with indirectly adjustable energy considerably exceeding limiting capabilities of dominating systems with the normalized time of its accumulation in magnetic field of the ignition coil.

EFFECT: improvement of efficiency of ICE operation for the successful solution of the essential and predicted tasks of their modernization connected with improvement of environmental safety, thermal efficiency and specific dimensional power.

6 cl, 8 dwg

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