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Electronic control

Subclass of:

123 - Internal-combustion engines

123406110 - SPARK IGNITION TIMING CONTROL

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Class / Patent application numberDescriptionNumber of patent applications / Date published
123406190 Closed loop feedback control of spark timing 122
123406450 Including control of combustible mixture or a constituent thereof (e.g., air, fuel, exhaust gas) 17
123406580 Having engine shaft rotational position signal generator (e.g., crank shaft, cam shaft) 9
123406530 Starting condition responsive 6
123406550 Temperature responsive (e.g., ambient, engine, etc.) 5
20090194070METHOD FOR CONTROLLING AT LEAST ONE SHEATHED-ELEMENT GLOW PLUG IN AN INTERNAL COMBUSTION ENGINE AND ENGINE CONTROLLER - A method for controlling at least one sheathed-element glow plug in an internal combustion engine, the temperature of the sheathed-element glow plug being controlled as a function of at least one operating parameter of the internal combustion engine in such a way that optimal combustion properties of the internal combustion engine prevail at all times.08-06-2009
20110290215Method for regulating a combustion engine - A reciprocating engine and a method for regulating a reciprocating engine, in which a combustion chamber temperature θ-12-01-2011
20120103305Method for regulating a combustion engine - A reciprocating engine and a method for regulating a reciprocating engine, in which a combustion chamber temperature θ-05-03-2012
20120298073IGNITION TIMING CONTROL DEVICE AND IGNITION TIMING CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE - An ignition timing control device for an internal combustion engine includes a retarding portion and a prohibiting portion. The retarding portion retards ignition timing according to a parameter that correlates with temperature inside a combustion chamber. The prohibiting portion prohibits the retarding portion from retarding the ignition timing when alcohol concentration in blended fuel is greater than or equal to a predetermined value. The internal combustion engine uses the blended fuel in which an alcohol fuel and a gasoline fuel are blended at arbitrary proportion.11-29-2012
20100307452Ignition system of engine and control method thereof - An ignition system of an engine may include an ignition device that uses the current that is supplied to an ignition coil to generate spark in the combustion chamber, a starting detecting portion that detects the starting signal for starting a stopped engine, a coolant temperature detecting portion that detects the coolant temperature of the engine, and a power control portion that increases the dwell time of the current that is supplied to the ignition coil for a predetermined time after starting the engine, in a case that the starting signal is detected and the coolant temperature is lower than a predetermined level. Accordingly, if the temperature of the engine is low, the dwell time is increased for a predetermined time such that the spark is effectively formed in the cylinder to sable the starting of the engine in the ignition system of an engine according to the present invention.12-09-2010
123406130 With fail-safe, backup or malfunction detecting means 4
20100095932IGNITION DEVICE FOR INTERNAL COMBUSTION ENGINE - An ignition device for an internal combustion engine including: an exciter coil that generates an AC voltage having a positive half wave and first and second negative half waves generated before and after the positive half wave with rotation of the internal combustion engine; and an ignition control portion that controls an ignition position of the engine using a microprocessor to which a power supply voltage is supplied from a power supply circuit that converts the voltage having the negative half waves generated by the exciter coil to a DC voltage, wherein the ignition control portion is comprised so as to cause a timer to start a counting operation at the start of the operation of the microprocessor, regard a measurement value of the timer as time between generation of the first negative half wave and generation of the second negative half wave to arithmetically operate counting data for measuring the ignition position based on rotational speed information of the engine obtained from the time, and immediately measure the arithmetically operated counting data to generate an ignition signal.04-22-2010
20130047957Method and Internal Combustion Engine for a Supercharged Internal Combustion Engine - Embodiments for a turbocharged engine are provided. In one example, a method for operating a supercharged internal combustion engine including at least one exhaust-gas turbocharger which has a turbine arranged in an exhaust-gas discharge system and a compressor arranged in an intake system, comprises during a load increase Δp02-28-2013
20090064969METHOD FOR DETERMINING THE COMPOSITION OF A FUEL BLEND - The invention relates to a method for determining the composition of a fuel blend from a first and at least a second fuel for operating an internal combustion engine. The method makes provision for the ignition angle of the internal combustion engine to be altered and for a non-intermittent fluctuation in the torque, which is a function of the ignition angle, and/or a non-intermittent rotational discontinuity and/or a variable derived from said discontinuity to be used as the parameter for determining the composition of the fuel blend. The degree of efficiency of an internal combustion engine is a function of the ignition angle. It is known that the optimal ignition angle is a function of the composition of the fuel blend. Furthermore, fuel blends which have different compositions have a different knocking limit. The knocking limit thereby denotes the ignition angle, whereat a predetermined quantity of knocking combustion occurs. If the ignition angle is now displaced from the optimal ignition angle in the direction of an advanced or a retarded ignition point, the engine smoothness decreases. For instance, the displacement of the ignition angle in the direction of a retarded ignition point, leads to misfires, which cause a decrease in engine smoothness and consequently a non-intermittent fluctuation in the engine rotational speed and the engine torque.03-12-2009
20090199816Ignition apparatus for internal combustion engine - An ignition apparatus which allows for an accurate diagnosis of a spark plug in an internal combustion engine provided with plural spark plugs for each cylinder is provided for an internal combustion engine. The ignition apparatus is for an internal combustion engine provided with plural spark plugs for each cylinder, and includes an input port which receives fail signals S08-13-2009
123406560 With magneto 3
20080276905HIGH FREQUENCY IGNITION ASSEMBLY - An ignition assembly includes a power converter receiving an alternating current input, including a first capacitor and a second capacitor. The first capacitor and the second capacitor are charged in parallel to a first DC voltage and at a first polarity to discharge in series to an output at a second DC voltage that is greater than the first DC voltage. The second DC voltage is coupled to an ignition gap, and causes the ignition gap to ionize and form a spark. A switch is coupled to the first capacitor and is operable to control the discharge of the first capacitor and the second capacitor. An AC input switch is coupled to the AC input and is operable to control a flow of current from the AC input through the first capacitor and the second capacitor to the output. The flow of AC to the output sustains the ionization of the ignition gap.11-13-2008
20090126686CAPACITOR DISCHARGE ENGINE IGNITION DEVICE - A capacitor discharge ignition device in which a coil unit including an ignition coil and an exciter coil wound around a common core, and an ignition unit including a circuit board and components of an ignition circuit mounted to the circuit board are housed in a case and molded with resin poured into the case, wherein the ignition coil and the exciter coil are placed axially with a spacing therebetween and a space is formed between the coils, the circuit board of the ignition unit is placed on a lateral side of the coil unit, and terminals for connecting the ignition coil and the exciter coil to the circuit board are all connected to the circuit board through the space between the ignition coil and the exciter coil.05-21-2009
20100242910Hot spark injection system for diesel engines to promote complete combustion - A spark injection system for an internal combustion engine for the detonation and combustion of remaining fuel/air mixture within the cylinder, the spark injection system introduces a pulsed electrical charge into the cylinder after the initial detonation when the piston is in a position of approximately five degrees after top dead center and the spark continues or is intermittently continued through the power stroke and through three quarters of the exhaust stroke, thus combusting the remaining fuel/air mixture and maintaining a higher temperature within the cylinder and alternatively the pulsed electrical charge is introduced during all four cycles of the cylinders operation.09-30-2010
123406500 Acceleration or deceleration responsive 3
20080289604Method and System for Controlling Engine Noise - The present invention provides a method of controlling noise and harshness caused by combustion in a spark ignited engine having a combustion chamber; a fuel delivery means for delivering a fuel charge to the combustion chamber; a plurality of spark ignition means located in the combustion chamber for igniting the fuel charge and a control unit. The control unit controls operation of each ignition means in response to measured value of at least one combustion noise associated parameter, being an engine operating condition. Control may be a response to the combustion noise associated parameter breaching a threshold value. The combustion noise associated parameter may be rate of rise of combustion pressure in the combustion chamber. However, the method may be implemented in response to rate of rise of combustion pressure and one or more further parameters, such as engine speed, acceleration and/or engine load breaching threshold values. An ignition control system for implementing the method in a vehicle forms another aspect of the invention. The method and ignition control system may be implemented in fuel injected engines or carbureted engines but is particularly advantageous for fuel injected engines.11-27-2008
20100108031ENGINE AND EXHAUST HEATING - A method for controlling a vehicle engine having a plurality of cylinders is provided. The method comprises: during engine idling, advancing spark timing of at least one cylinder to before a peak torque timing, and retarding spark timing from the advanced timing toward the peak torque timing in response to decreased engine speed to maintain idling speed.05-06-2010
20120145124ENGINE AND EXHAUST HEATING - A method for controlling a vehicle engine having a plurality of cylinders is provided. The method comprises: during engine idling, advancing spark timing of at least one cylinder to before a peak torque timing, and retarding spark timing from the advanced timing toward the peak torque timing in response to decreased engine speed to maintain idling speed.06-14-2012
123406520 Throttle position responsive 1
20080216796CONTROL SYSTEM AND METHOD FOR INTERNAL COMBUSTION ENGINE - A control system and method for an internal combustion engine includes an intake manifold for directing airflow to a plurality of cylinders of the engine and an electronically controlled throttle valve disposed within the intake manifold for regulating airflow into the engine. An engine retard control determination module determines whether retard control of the engine is disabled. A throttle control module communicates with the electronically controlled throttle valve and modifies a throttle return trigger point during a transmission upshift when the retard control determination module determines that retard control of the engine is disabled.09-11-2008
Entries
DocumentTitleDate
20100108032ENGINE AND EXHAUST HEATING FOR HYBRID VEHICLE - A method for controlling a vehicle engine having a plurality of cylinders and an electric motor configured to rotate the engine is provided. The method includes, during engine idling, advancing spark timing of at least one cylinder to substantially before a peak torque timing. The method further includes adjusting motor torque output of the electric motor to maintain engine idle speed.05-06-2010
20090126684ENGINE CONTROL APPARATUS AND METHOD - An engine control apparatus has an electric discharge device, a voltage application device, a fuel supplying device, and a control unit. The electric discharge device includes a first electrode and a second electrode. The second electrode is arranged opposite the first electrode to produce radicals within a combustion chamber of an internal combustion engine by a non-equilibrium plasma discharge that is generated between the electrodes before autoignition of the air-fuel mixture occurs. The voltage application device is operatively coupled to the first electrode for applying a voltage between the first and second electrodes to generate the non-equilibrium plasma between the first and second electrodes. The fuel supplying device forms an air-fuel mixture inside the combustion chamber. The control unit is operatively coupled to the electric discharge device to set a discharge start timing of the electric discharge device to occur during an intake stroke of the internal combustion engine.05-21-2009
20100089361INTERNAL-COMBUSTION-ENGINE COMBUSTION CONDITION DETECTION APPARATUS AND COMBUSTION CONDITION DETECTION METHOD - An internal-combustion-engine combustion condition detection apparatus is provided with an ignition means that makes an ignition plug ignite a fuel; an ignition control means that controls the operation of the ignition means; an ion-current detection means that detects an ion current generated; an ion current detection range setting means that sets an ion-current detection range; a preignition detection means that detects preignition within a detection range to be set; a leakage current detection range setting means that sets a leakage-current detection range; and a leakage current determination means that determines whether or not a smolder exists, based on a current detected, within a detection range to be set, by the ion-current detection means. The ignition control means includes a non-combustion-stroke ignition control means; the leakage-current detection range set by the leakage current detection range setting means is set within the non-combustion stroke.04-15-2010
20100083935CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE - In the present invention, in a control system for a spark ignition internal combustion engine, when a catalyst is not sufficiently active, the ignition timing is advanced to be earlier than MBT to decrease the quantity of hydrocarbons (HC) discharged from the internal combustion engine, and oxygen is supplied to the exhaust gas upstream of the catalyst to thereby oxidize carbon monoxide (CO) discharged from the internal combustion engine. According to this invention, exhaust emissions emitted before activation of the exhaust gas purification apparatus can be decreased as much as possible, and early activation of the catalyst can be achieved by making use of heat generated by oxidation reaction of carbon monoxide (CO).04-08-2010
20110283972CONTROL STRATEGY FOR TRANSITIONS BETWEEN HOMOGENEOUS-CHARGE COMPRESSION-IGNITION AND SPARK-IGNITION COMBUSTION MODES - A direct-injection internal combustion engine includes an intake camshaft with a low-lift intake cam and a high-lift intake cam, a variable lift control for selectively operating an intake valve in one of a low-lift intake valve profile with the low-lift intake cam and a high-lift intake valve profile with the high-lift intake cam, a variable cam phase control operative on the intake camshaft for simultaneously controlling the phase of the low-lift intake cam and the high-lift intake cam, an ignition spark control, a fuel injection control, an exhaust gas recirculation control, and an intake throttle control. A method of operating the engine includes operating the engine in one of a) a homogeneous-charge compression-ignition (HCCI) combustion mode including the low-lift intake valve profile, and b) a spark ignition (SI) combustion mode including the high-lift intake valve profile, and within a predetermined range of engine loads and camshaft phasings, wherein the low-lift intake valve profile and the high-lift intake valve profile effect a respective intake airflow in the corresponding HCCI combustion mode and SI combustion mode conducive to stable combustion exclusively through fuel and spark control. The method further includes transitioning between the HCCI and SI combustion modes exclusively through adjustments to the variable lift control, the ignition spark control, and the fuel injection control.11-24-2011
20090084353INTERNAL-COMBUSTION-ENGINE COMBUSTION CONDITION DETECTION APPARATUS - An internal-combustion-engine combustion condition detection apparatus that can accurately comprehend a combustion condition is obtained. The internal-combustion-engine combustion condition detection apparatus includes an ion-current detection device (04-02-2009
20100012087SPARK TIMING ADJUSTMENT BASED ON VEHICLE ACCELERATION - Systems, methods and a processor are provided for adjusting the spark timing of an internal combustion engine. The systems, methods and processor include adjusting the spark timing of an internal combustion engine configured to power a vehicle toward peak torque timing based on an output of a longitudinal acceleration sensor configured to sense a longitudinal acceleration of the vehicle.01-21-2010
20080314362Hall Effect Pick-Up With Timing Correction - A circuit and method for correcting signal timing. The circuit and method generate a first signal with a first phase that is out of phase with a periodic object, generate a voltage signal that corresponds to the frequency of the first signal and generate a second signal based on the first signal and the voltage signal, the second signal having a second phase that is substantially in phase with the periodic object.12-25-2008
20090194069CONTROL APPARATUS AND CONTROL METHOD OF IN-CYLINDER INJECTION TYPE SPARK IGNITION INTERNAL COMBUSTION ENGINE - An ECU controls an internal combustion engine which generates a tumble flow inside a cylinder and strengthens the tumble flow by fuel injected near bottom dead center of an intake stroke. The ECU includes an injection timing changing device that changes the injection timing of fuel based on the amount of air drawn into a cylinder of the internal combustion engine.08-06-2009
20110073069VARIABLE VALVE ACTUATION CONTROL SYSTEMS AND METHODS - A variable valve actuation (VVA) system comprises a spark control module and a phaser control module. The spark control module maintains a spark timing of a cylinder at a maximum braking torque (MBT) spark timing during engine idling. The phaser control module, during the engine idling, adjusts an intake valve timing of the cylinder away from a predetermined intake valve timing. The predetermined intake valve timing corresponds to a maximum air per cylinder (APC) for the cylinder at a current engine speed. The adjustment of the intake valve timing produces an APC that is less than the maximum APC.03-31-2011
20110041804Multiplexing Drive Circuit For An AC Ignition System - A multiplexing drive circuit for an AC ignition system having a common leg that includes two switches coupled in series, and one or more dedicated legs, wherein each leg includes two switches coupled in series. The multiplexing drive circuit also includes a transformer for each of the one or more dedicated legs, each transformer having a primary winding coupled between one of the one or more dedicated legs and the common leg, and wherein each transformer has a secondary winding coupled in parallel to a spark plug, and a pulse-width modulated (PWM) switch controller configured to operate the common leg and dedicated leg switches to control characteristics of the spark discharge for the spark plug.02-24-2011
20100288231CONTROL SYSTEMS AND METHODS FOR NEWLY ASSEMBLED ENGINES - An engine control system for a vehicle comprises a combustion control module and an engine startup module. The combustion control module selectively controls a spark timing and airflow into an engine based on a counter value. The engine startup module, when the counter value is one of greater than and less than a predetermined final value, controls an equivalence ratio (EQR) of an air/fuel mixture provided to the engine during an engine cranking period based on a fuel rail pressure and controls the EQR during an engine running period based on the fuel rail pressure and an engine runtime period. The counter value is set to the predetermined final value after the engine is started for a first time after the engine is assembled.11-18-2010
20100175663CONTROL UNIT AND CONTROL METHOD FOR TORQUE-DEMAND-TYPE INTERNAL COMBUSTION ENGINE - When a fuel-supply cutoff condition is satisfied (“YES” in S07-15-2010
20130019841IGNITION CONTROL DEVICE - In order to provide an ignition control device 01-24-2013
20080223338System and Method for Exhaust Heat Generation Using Electrically Actuated Cylinder Valves and Variable Stroke Combustion Cycles - A method for operating an engine having at least a first and second cylinder, comprising operating the first cylinder with a spark timing more retarded than a spark timing of a second cylinder; and operating one of said first cylinder and second cylinders with a first number of strokes per cycle different from other cylinders of the engine for at least one combustion cycle, wherein said first cylinder operates with valve timing different from said second cylinder.09-18-2008
20130112169PRODUCTS AND PROCESSES FOR ANALYZING OCTANE CONTENT - Products and processes are provided herewith for analyzing octane content in a fuel sample that include the step or steps of receiving an octane measurement of a fuel sample from a octane analyzer, rounding the octane measurement to a nearest recognized octane rating, comparing the rounded octane measurement with a listed octane rating for the fuel sample, and communicating results of the comparison to a user of the octane analyzer. The octane analyzer may be incorporated into a fuel pump or a vehicle. The results of the comparison may also be used to adjust the vehicle operating parameters to account for the actual octane rating of the fuel dispensed into the vehicle.05-09-2013
20130152898VARIABLE IGNITION TYPE DIESEL-GASOLINE DUAL FUEL POWERED COMBUSTION ENGINE, SYSTEM, AND METHOD - A variable ignition type diesel-gasoline dual fuel powered combustion engine and control method can select spark ignition or compression ignition depending on the engine operating range. The variable ignition type diesel-gasoline dual fuel powered combustion engine includes a cylinder block formed of a plurality of cylinders each being connected to an air intake manifold sucking air or a gasoline fuel-mixed air and an exhaust manifold exhausting an exhaust gas after combustions; and an ECU controlling the combustion modes. The engine operating ranges are judged by the speed and load of the engine. When the range is the high load range or the low load range, a gasoline fuel combustion is performed, and when the range is between the high load range and the low load range, a diesel-gasoline dual fuel powered step is performed.06-20-2013

Patent applications in class Electronic control

Patent applications in all subclasses Electronic control