Class / Patent application number | Description | Number of patent applications / Date published |
123436000 | Including means responsive to instantaneous change in engine speed | 29 |
20090217909 | FUEL INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE - With reference to FIG. | 09-03-2009 |
20090308350 | Method for determining the Ethanol content of the fuel in a motor vehicle - A method for determining the Ethanol content of the fuel in a motor vehicle uses the dependence of the lean-running limit of the internal combustion engine on the ethanol content of the fuel to determine the ethanol content, by the fact that the ethanol content is arrived at from the required reduction in the injected fuel quantity to reach the lean-running limit. | 12-17-2009 |
20090320793 | METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE - In a method for operating an internal combustion engine, in particular of a motor vehicle, the internal combustion engine is controlled by at least one drive variable, and an instantaneous torque output by the internal combustion engine is determined from a performance variable of the internal combustion engine that differs from the drive variable. | 12-31-2009 |
20100116250 | METHOD AND APPARATUS FOR ARBITRATING TORQUE RESERVES AND LOADS IN TORQUE-BASED SYSTEM - An engine control system includes an air control module, a spark control module, and a reserves module. The air control module controls a throttle valve of an engine based on an adjusted predicted torque request. The spark control module controls spark timing of the engine based on an adjusted immediate torque request. The reserves module determines an arbitrated reserve based on a maximum one of a minimum reserve and an additive reserve sum. The reserves module also generates the adjusted predicted torque request based on a sum of an arbitrated predicted torque request and a requested reserve, wherein the requested reserve is based on the arbitrated reserve. | 05-13-2010 |
20100147265 | SINGLE NOZZLE DIRECT INJECTION SYSTEM FOR RAPIDLY VARIABLE GASOLINE/ANTI-KNOCK AGENT MIXTURES - Engine management system for operation of a direct injection spark ignition gasoline engine. The system includes a gasoline engine, a source of gasoline and a source of an anti-knock agent. Gasoline and anti-knock agent are introduced into a proportioning valve that delivers a selected mixture of gasoline/anti-knock agent to a high pressure pump. At least one injector receives the selected mixture from the high pressure pump and delivers the mixture into a cylinder of the engine. The engine management system provides a rapidly variable mixture of directly injected anti-knock agent and gasoline which prevents knock as the engine torque increases. | 06-17-2010 |
20100192909 | COMPRESSION IGNITION INTERNAL COMBUSTION ENGINE, GLOW PLUG, AND INJECTOR - The invention provides a practical diesel engine that uses plasma formed by microwave emissions. In a compression-ignition internal combustion engine, fuel is sprayed by an injector in the combustion chamber in which compressed oxidizing gas is present, and the fuel is compressed and ignited. The engine has one antenna or a plurality of antennas in the combustion chamber, and when the oxidizing gas or moisture and charged particles are present in the combustion chamber, an electromagnetic wave is emitted using the antenna in a space in which the oxidizing gas and the charged particles are present, and plasma is generated in the space by the energy fed to the charged particles. | 08-05-2010 |
20100236523 | APPARATUS FOR AND METHOD OF CONTROLLING INTERNAL COMBUSTION ENGINE - Control apparatus performs knocking suppression control in an internal combustion engine provided with a variable valve mechanism that is capable of varying a closing timing IVC of an inlet valve. The control apparatus, in a case in which an alcohol concentration and octane number of a fuel are low and knocking is likely to occur, controls the variable valve mechanism and retards the closing timing of the inlet valve from the bottom dead center TDC. Thereby, the effective compression ratio is reduced and knocking occurrence is consequently suppressed. | 09-23-2010 |
20100326403 | ELECTRICALLY HEATED PARTICULATE FILTER REGENERATION DURING ENGINE START/STOP OPERATION - A control system comprises a combustion control module and a regeneration control module. The combustion control module controls operation of a vehicle in a first mode during which a combustion engine is off and in a second mode during which the combustion engine is on. The regeneration control module is in communication with the combustion control module and activates an electric heater during the first mode to heat an inlet of a particulate matter (PM) filter. Exhaust gas produced by the combustion engine enters the inlet and initiates a regeneration cycle of the PM filter in the second mode. | 12-30-2010 |
20110048374 | Methods and systems for reducing the formation of oxides of nitrogen during combustion in engines - The present disclosure is directed to various embodiments of systems and methods for reducing the production of harmful emissions in combustion engines. One method includes correlating combustion chamber temperature to acceleration of a power train component, such as a crankshaft. Once the relationship between acceleration/deceleration of the component and combustion temperature are known, an engine control module can be configured to adjust combustion parameters to reduce combustion temperature when acceleration data indicates peak combustion temperature is approaching a harmful level, such as a level conducive to the formation of undesirable oxides of nitrogen. Various embodiments of the methods and systems disclosed herein can employ injectors with integrated igniters providing efficient injection, ignition, and complete combustion of various types of fuels. | 03-03-2011 |
20110067674 | SPARK IGNITION ENGINE THAT USES INTAKE PORT INJECTION OF ALCOHOL TO EXTEND KNOCK LIMITS - Internal combustion engine system. The system includes a source of gasoline for direct injection into cylinders of a spark ignition engine along with a source of an antiknock fuel for injection into the intake ports of the engine as needed to prevent knock. A preferred antiknock fuel is ethanol or an ethanol/gasoline blend having an ethanol content of 20% by volume or more. Other suitable antiknock fuels are methanol, a combination of ethanol and methanol, and a blend of gasoline with either ethanol, methanol, or an ethanol/methanol mixture. | 03-24-2011 |
20110132327 | ABNORMALITY DETECTION DEVICE FOR INTERNAL COMBUSTION ENGINE - An object of the present invention is to provide an abnormality detection device that is used with an internal combustion engine having a valve drive mechanism capable of halting the drive of at least one of an intake valve and an exhaust valve, and able to detect the abnormalities of a valve drive halt function. The internal combustion engine includes a knock sensor capable of sensing the seating sound of the intake valve and/or the exhaust valve. An ECU detects whether a control signal given to the valve drive mechanism is a valve drive signal or a valve halt signal. In accordance with the result of detection by the ECU and the presence of the seating sound in an output of the knock sensor, the abnormality detection device judges whether or not the valve drive mechanism is abnormal. | 06-09-2011 |
20110139120 | METHOD AND SYSTEM FOR PRE-IGNITION CONTROL - 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. | 06-16-2011 |
20110168131 | SYSTEM AND METHOD FOR CLEANING SOLENOID VALVE DEBRIS - An engine control system includes an active fuel management (AFM) control module that selectively enables and disables an AFM mode using at least one AFM valve. The engine control system further includes a solenoid fault correction module that selectively opens and closes at least one AFM valve when AFM mode is disabled. | 07-14-2011 |
20110259298 | Knocking Control System for Gas Engine - A knocking control system for a gas engine of the present invention, being configured to calculate a knocking occurrence ratio (SEV) which is a ratio of a cycle number of cycles in which a predetermined knocking occurs for a period of the cycles of the predetermined cycle number, to the predetermined cycle number, decide a target value of an ignition timing of the ignition device based on a deviation (ΔSEV) between an occurrence ratio delay calculation value (SEV | 10-27-2011 |
20120031373 | SYSTEM AND METHOD FOR CONTROLLING ENGINE KNOCK USING ELECTRO-HYDRAULIC VALVE ACTUATION - A control system for an engine includes a knock control module and a valve control module. The knock control module adjusts a period that one or more of an intake valve and an exhaust valve of a cylinder are open based on engine knock corresponding to the cylinder. The valve control module, based on the adjusted period, controls the one or more of the intake valve and the exhaust valve using one or more hydraulic actuators. | 02-09-2012 |
20120037120 | METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE - In a method and a device for operating an internal combustion engine, with at least one cylinder (Z | 02-16-2012 |
20120080008 | KNOCK CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A knock control apparatus for internal combustion engine includes: a knock signal normalization unit that normalizes a knock signal extracted from an output signal of a knock sensor; a knock determination threshold setting unit that sets a knock determination threshold on the basis of the normalized knock signal; a knock intensity computation unit that calculates knock intensity on the basis of the normalized knock signal and the set knock determination threshold; a knock determination unit that determines a presence or absence of a knock on the basis of the calculated knock intensity; and a knock correction amount computation unit that calculates a knock correction amount to correct the calculated knock intensity in a case where an occurrence of a knock is determined. The knock signal normalization unit normalizes a standard deviation of the knock signal by dividing the knock signal by an average value of the knock signal. | 04-05-2012 |
20120103307 | METHOD AND APPARATUS FOR ESTIMATING ENGINE OPERATING PARAMETERS - A method for operating an internal combustion engine includes monitoring signal output from a high-resolution torque sensor configured to monitor engine torque during ongoing operation, monitoring states of engine operating and control parameters associated with engine input parameters, and estimating a mass air charge for each cylinder event corresponding to the signal output from the high-resolution torque sensor and the states of engine operating and control parameters associated with the engine input parameters. | 05-03-2012 |
20120138017 | FUEL IDENTIFICATION BASED ON CRANKSHAFT ACCELERATION - Systems and methods for identifying alcohol content of a fuel in an engine. In one example approach, a method comprises adjusting fuel injection to the engine based on fuel alcohol content identified from crankshaft acceleration. For example, the crankshaft acceleration may be generated by modulating an air/fuel ratio in a selected cylinder across a range of air/fuel ratios while keeping the engine at stoichiometry. | 06-07-2012 |
20120192835 | KNOCK CONTROL DEVICE FOR ENGINE - A knock control device is provided in which erroneous knock detection can be reduced by suppressing sudden knock signal changes due to noise, without causing any increase in the number of matching steps, deterioration in the S/N in knock detection and decrease in detection performing frequency. In the knock control device, an open gain is applied to the detected signal only during a knock detection window set in advance by a knock window setting means. The window corresponds to a period in which vibration due to knock arises. During other periods, either a closed gain or an interpolated gain value is applied to the detected signal. | 08-02-2012 |
20120234294 | METHOD FOR CORRECTING FUEL INJECTION AMOUNT IN COMMON-RAIL-TYPE FUEL INJECTION CONTROL DEVICE AND COMMON-RAIL-TYPE FUEL INJECTION CONTROL DEVICE - A common-rail-type fuel injection control device where an error in the correction of a fuel injection amount when an exhaust brake is used is eliminated enabling a more reliable correction of a fuel injection amount. | 09-20-2012 |
20120285421 | Method and System for Controlling Engine Vacuum Production - A method for controlling engine vacuum production is disclosed. In one example, one or more air sources to an engine intake manifold are closed so as to increase an amount of air drawn from another air source. The method may increase a rate of vacuum supplied to a vacuum actuated device so as to improve operation of the vacuum actuated device. | 11-15-2012 |
20130213355 | FUEL IDENTIFICATION BASED ON CRANKSHAFT ACCELERATION - Systems and methods for identifying alcohol content of a fuel in an engine. In one example approach, a method comprises adjusting fuel injection to the engine based on fuel alcohol content identified from crankshaft acceleration. For example, the crankshaft acceleration may be generated by modulating an air/fuel ratio in a selected cylinder across a range of air/fuel ratios while keeping the engine at stoichiometry. | 08-22-2013 |
20130247871 | STOP CONTROL SYSTEM FOR ENGINE - A stop control system for an engine including a crankshaft is provided with a motor and a control device. The motor is connected to the crankshaft of the engine, and the control device is configured to stop the crankshaft in a compression stroke of the engine by temporarily driving the motor to thereby assist rotation of the crankshaft that is still being forwardly rotated after starting stop control operation of the engine under predetermined engine stop conditions. | 09-26-2013 |
20140338636 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A control apparatus for an internal combustion engine having a throttle valve disposed in an intake passage of the engine is provided. A wide-open intake air amount, which is an intake air amount corresponding to a state where the throttle valve is fully opened, is calculated, and a theoretical intake air amount, which is an intake air amount corresponding to a state where no exhaust gas of the engine is recirculated to a combustion chamber of the engine, is calculated according to the wide-open intake air amount and the intake pressure. An air-fuel ratio correction amount and a learning value thereof are calculated according to the detected air-fuel ratio, and a reference intake air amount is calculated using the intake pressure, the engine rotational speed, the air-fuel ratio correction amount, and the learning value. A lower limit value of the detected intake air amount is set according to the reference intake air amount, and a limit process is performed for limiting the detected intake air amount within a range of values which are equal to or greater than the lower limit value. An amount of the evaporative fuel/air mixture supplied to the intake passage is calculated, and the limit-processed intake air amount is corrected using the evaporative fuel/air mixture amount to calculate an intake gas amount. An exhaust gas recirculation ratio is calculated using the theoretical intake air amount and the intake gas amount. | 11-20-2014 |
20160123252 | CONTROLLING DEVICE FOR INTERNAL COMBUSTION ENGINE EQUIPPED WITH TURBOCHARGER - A target first air amount for achieving a requested torque by an operation of an intake property variable actuator is calculated by using a first parameter. A target second air amount for achieving the requested torque by an operation of a turbocharging property variable actuator is calculated by using a second parameter. A value of a first parameter changes to a value that reduces a conversion efficiency of an air amount into torque in response to the requested torque decreasing to a first reference value or lower. Further, a value of the second parameter starts to change to a direction to reduce the conversion efficiency in response to the requested torque decreasing to a second reference value that is larger than the first reference value, or lower, and gradually changes to a direction to reduce the conversion efficiency in accordance with the requested torque further decreasing from the second reference value to the first reference value. The target air-fuel ratio is set at a first air-fuel ratio in a period in which the requested torque is larger than the first reference value, and is switched to a second air-fuel ratio which is leaner than the first air-fuel ratio in response to a decrease of the requested torque to the first reference value or lower. | 05-05-2016 |
20160131071 | FUEL INJECTION DEVICE - There is provided a fuel injection device. Based on a current intake air pressure and a previous intake air pressure of an engine at the predetermined crank position, an intake air pressure variation of the engine at the predetermined crank position is calculated as a measured intake air pressure variation. Based on the current rotational speed and the previous rotational speed of the engine at the predetermined crank position, and a fully-closed-state intake air pressure conversion data item, the fully-closed-state intake air pressure variation of the engine at the predetermined crank position is calculated. The measured intake air pressure variation is corrected based on the fully-closed-state intake air pressure variation. Based on the corrected measured intake air pressure variation, the current rotational speed at the predetermined crank position, and the transient fuel injection quantity conversion data item, the transient fuel injection quantity at the predetermined crank position is determined. | 05-12-2016 |
20160201592 | State-Based Diesel Fueling For Improved Transient Response In Dual-Fuel Engine | 07-14-2016 |
20170234253 | DECELERATION CYLINDER CUT-OFF IN A HYBRID VEHICLE | 08-17-2017 |