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US20110302917 TWIN SCROLL TURBOCHARGER WITH EGR TAKEOFFS  
Systems and methods for operating a twin scroll turbocharged engine with a junction configured to selectively control exhaust gas delivery to an exhaust gas recirculation system and a twin scroll...
US20130151117 METHOD OF DETERMINING WATER CONTENT OF ETHANOL FOR FFV AND CORRECTING FUEL QUANTITY BASED ON WATER CONTENT  
A method of determining the water content of ethanol for an FFV and correcting fuel quantity based on the water content, which verifies whether an oxygen sensor is normal or abnormal, and it is...
US20130060449 IMBALANCE RE-SYNCHRONIZATION CONTROL SYSTEMS AND METHODS  
Fueling to one cylinder of an engine is selectively adjusted based on a correction associated with the cylinder. An instability module increments a counter value when the correction is equal to...
US20120004831 CONTROLLER FOR INTERNAL COMBUSION ENGINE  
An internal combustion engine uses, as the fuel, ammonia and gasoline (supporting fuel) for promoting the combustion of the ammonia. The ammonia is injected from an ammonia injector into an intake...
US20120191322 Controlling an Engine Having an Electronically-Controlled Turbocharger  
A procedure for startup and shutdown of an internal combustion engine with an electronically-controlled turbocharger (ECT) is disclosed. The startup and shutdown procedures are determined to...
US20110029217 FUEL INJECTION PIN DISPLACEMENT PROFILE INTERPOLATION  
According to various embodiments of the invention, a map of injection pin profiles is experimentally determined at various locations spanning an engine operating plane. Injector pin profiles at...
US20120004824 NATURAL GAS AND DIESEL FUEL BLENDING SYSTEM  
An electronically controlled fuel blending system that injects compressed natural gas into the air intake of a diesel engine resulting in lower emissions, increased fuel economy is disclosed.
US20150105995 VISCOSITY DETECTION USING SUMP  
Various methods for inferring oil viscosity and/or oil viscosity index in an internal combustion engine are provided. In one aspect, a new control method comprises: after engine shutdown, learning...
US20130197781 METHOD TO COMPLETE A LEARNING CYCLE OF A RECURSIVE LEAST SQUARES APPROXIMATION  
A method to control a non-linear system includes operating a learning cycle to approximate characteristics of the system and, once the learning cycle is complete, operating the system based upon...
US20090084351 IDLE SPEED CONTROL METHOD FOR CONTROLLING THE IDLE SPEED OF AN ENGINE WITH A CONTINUOUS VARIABLE EVENT AND LIFT SYSTEM AND A FUEL CONTROL SYSTEM USING THE METHOD  
Air quantity of ISC is roughly controlled on the basis of the lift amount of an intake valve, whose air flow rate control range is wide. The adjustment of the air quantity beyond the range of the...
US20140039778 NOX CONTROL DURING CYLINDER DEACTIVATION  
Methods and systems are provided for improving engine exhaust emissions while enabling exhaust catalyst regeneration following an engine lean event. Prior to a VDE event, or prior to an engine...
US20150152795 Dynamic Cylinder Deactivation with Residual Heat Recovery  
Cylinder deactivation is a proven solution to improve engine fuel efficiency. The present invention is related to Dynamic Cylinder Deactivation (DCD) control solution to conventional multiple...
US20120029789 Methods of detecting pre-ignition and preventing it from causing knock in direct injection spark ignition engines  
A method of preventing a pre-ignition event within a cylinder (20) of a spark ignition engine (100) involves taking in-cylinder measurements and using the measurements to determine the...
US20130024091 METHODOLOGY TO COMPENSATE THE EFFECT OF HUMIDITY AND ALTITUDE ON HCCI COMBUSTION  
A method for controlling combustion in a spark-ignition direct-injection internal combustion engine includes monitoring an engine operating mode and an ambient parameter, determining a deviation...
US20140074377 SELF-TUNING ELECTRONIC FUEL INJECTION SYSTEM  
A self-tuning fuel injection system and method having a first long-term fuel trim correction algorithm to selectively replace an operating zone within a volumetric efficiency look-up table based...
US20080115486 FLEXIBLE FUEL TOLERANT CATALYTIC CONVERTER DIAGNOSTIC METHOD  
A monitoring system for a catalytic converter is provided. The system includes: a fuel determination module that determines a fuel composition based on a sensed composition of fuel in a fuel...
US20110022289 METHOD OF CONTROLLING AN ELECTRICALLY ASSISTED TURBOCHARGER  
Suitable for retrofitting conventional turbo charged engines, an electrically controlled turbocharger is installed in a Compression Ignition Direct Injection (CIDI) Engine and controlled to...
US20100299048 ENGINE FOR AN AGRICULTURAL HARVESTER HAVING ISOCHRONOUS TORQUE CURVE WITH POWER BULGE  
A method of operating an IC engine in an agricultural harvester includes the steps of: operating the IC engine in a normal mode with a base torque curve as a function of engine operating speed and...
US20150219050 FUEL INJECTION SYSTEM  
A fuel injection system in the present invention is provided with a fuel injection valve (10) which incorporates a heater (20) for heating fuel before being injected. The temperature of the heater...
US20140121948 HUMIDITY CORRECTIONS FOR FUEL SETPOINT ADAPTATION  
A method for adjusting an oxygen sensor measurement within an exhaust gas feedstream output from an internal combustion engine based on humidity includes monitoring relative humidity of ambient...
US20100031904 System and Method for Crankcase Gas Air to Fuel Ratio Correction  
A method and a system for correcting combustion in an engine to control for the effect of crankcase gases in the intake system are disclosed. The system includes one or more sensors in the...
US20100324801 SYSTEM FOR SUPPLY OF LPG/AMMONIA FOR DIRECT-INJECTION PETROL OR DIESEL ENGINES  
A system for supply of LPG/ammonia for direct-injection petrol or diesel engines comprises, in combination: an electronic control unit for regulation and control of the strategies (1); a...
US20100312453 Vapour Measurement  
The present invention provides, with reference to FIG. 1, an internal combustion engine (10) having a fuel injector which comprises a sprung piston (55) or a resilient diaphragm piston (8155) and...
US20130054115 INDIRECT HCCI COMBUSTION CONTROL  
A method for controlling combustion in a spark-ignition direct-injection internal combustion engine includes monitoring at least one combustion input parameter, and when the at least one monitored...
US20100318276 Control Strategy For A Diesel Engine During Lean-Rich Modulation  
The control system controls lean-rich modulation of fueling using a set of engine specific fueling parameter maps. One set of maps is a set of lean fueling maps, and another set is a set of rich...
US20140136081 SPARK PLUG DEGRADATION DETECTION  
Methods and systems are provided for identifying and indicating degradation of an engine cylinder spark plug. In response to a cylinder misfire event during selected engine operating conditions,...
US20110224886 ON-BOARD FUEL PROPERTY DETECTION USING PATTERN RECOGNITION AND POWER SPECTRAL ANALYSIS OF CYLINDER PRESSURE SIGNAL  
Combustion pressure in a diesel combustion chamber is monitored to determine a combustion parameter as a function of the monitored pressure. A cetane number of the fuel combusted is determined as...
US20120004830 CONTROLLER FOR INTERNAL COMBUSTION ENGINE  
An internal combustion engine (10) utilizes, as a fuel, ammonia and gasoline (combustion-supporting fuel) for promoting combustion of ammonia. Ammonia is injected from an ammonia injector (22)...
US20150260118 METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE AND CORRESPONDING INTERNAL COMBUSTION ENGINE  
A method for operating an internal combustion engine includes the steps of determining an oxygen filling state of an oxygen storage of a catalytic converter by way of a first lambda signal...
US20110130944 METHOD FOR AUTOMATICALLY CONTROLLING AN INTERNAL COMBUSTION ENGINE  
A a method for automatically controlling an internal combustion engine, in which an individual accumulator pressure (pE) of a common rail system is detected in a measurement interval and stored;...
US20140303878 REDUCING ENRICHMENT DUE TO MINIMUM PULSE WIDTH CONSTRAINT  
Methods and systems are provided for maintaining stoichiometry of an exhaust gas during operation of a fuel injector at a threshold pulse width. In response to operation of a fuel injector at the...
US20150226147 CONTROLLER AND CONTROL METHOD FOR ENGINES  
An alternator configured to acquire a motive force from an engine to generate electricity and a capacitor capable of storing therein the electricity generated by the alternator are provided. An...
US20130268177 INDIVIDUAL CYLINDER FUEL AIR RATIO ESTIMATION FOR ENGINE CONTROL AND ON-BOARD DIAGNOSIS  
A method of estimating the individual fuel air ratio richness of an individual cylinder in an engine by utilizing a single oxygen sensor at the confluence of a plurality of exhaust runners. The...
US20140012486 Method and control unit for detecting a voltage offset of a voltage-lambda characteristic curve  
A method/control unit for detecting a voltage offset in a range of a voltage-lambda characteristic curve of a two-point lambda sensor in an engine exhaust gas duct as to a reference voltage-lambda...
US20120016566 Method for Purging Fuel Vapors  
A method for improving purging of fuel vapors from a boosted engine is presented. In one embodiment, the method increases the efficiency of a venturi that supplies vacuum to purge fuel vapors from...
US20130024094 METHODS FOR CONTROLLING COMBUSTION OF BLENDED BIOFUELS  
A closed-loop control algorithm that reduces the increases in nitrogen oxides (NOx) commonly observed with biodiesel combustion while retaining particulate matter (PM) reductions with variable...
US20120271533 SPARK-IGNITION ENGINE AND METHOD OF CONTROLLING THE SPARK-IGNITION ENGINE  
A method of controlling a spark-ignition engine including an ignition plug for spark-igniting mixture gas inside a cylinder in an engine body, and an effective compression ratio changing module...
US20140172273 SYSTEM AND METHOD FOR CONTROLLING TORQUE OUTPUT OF AN ENGINE WHEN A WATER PUMP COUPLED TO THE ENGINE IS SWITCHED ON OR OFF  
A system according to the principles of the present disclosure includes a pump control module, an actuator control module, and a torque reserve module. The pump control module switches a water...
US20110125390 Driveline system impact reverberation reduction  
A method for driveline impact reverberation reduction including operating an engine coupled to a transmission; regulating operation of the engine with a controller to adjust fueling of the engine...
US20110166770 DIESEL ENGINE FUEL SOUNDNESS CONTROL SYSTEM AND DIESEL ENGINE FUEL SOUNDNESS EVALUATION METHOD  
A diesel engine fuel soundness control system includes: a density measuring instrument 11 that measures a density of a fuel F of a diesel engine (D/E) in real time; a micro carbon residue (MCR)...
US20150025776 FUEL SUPPLYING CONTROLLER  
In a fuel supplying controller detecting a clogging of a fuel filter, a timer count portion includes a steady count portion and an unsteady count portion. The steady count portion adds a steady...
US20150094933 COLD START EMISSIONS REDUCTION DIAGNOSTIC SYSTEM FOR AN INTERNAL COMBUSTION ENGINE  
A cold start emissions reduction diagnostic system for an internal combustion engine includes a coolant temperature module including a coolant temperature input, and a memory module having a...
US20090319153 SYSTEM AND METHOD OF FUEL SYSTEM OPTIMIZATION  
A method of optimizing a fuel system on a vehicle is provided. The fuel system includes a fuel tank configured to receive and contain a quantity of fuel, and the method includes determining a...
US20150159576 ADAPTIVE LEARNING OF DUTY CYCLE FOR A HIGH PRESSURE FUEL PUMP  
Methods and systems are provided for closed loop operation of a high pressure fuel pump connected to the direct injectors of an internal combustion engine. During operation of the high pressure...
US20120226429 METHOD FOR CONTROLLING A DIESEL ENGINE SYSTEM  
A method for controlling a diesel engine is disclosed in which the diesel engine is controlled to produce less soot when the operating state of an associated emission control device such as a...
US20130158752 FUEL OPTIMIZING SYSTEM FOR A MOBILE ASSET, AND A RELATED METHOD THEREOF  
A method includes determining a plurality of characteristic profiles associated with a mobile asset moving from a first operating point to a second operating point along a predefined path. The...
US20130024097 COMBUSTION CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE  
In an internal combustion engine (engine) in which premixed combustion and diffusion combustion are carried out in a combustion chamber, the premixed combustion and the diffusion combustion are...
US20090171551 SECONDARY AIR SUPPLY SYSTEM AND VEHICLE  
A secondary air supply system includes a CPU, a first air supply pipe, a second air supply pipe, a first shut-off valve, and a second shut-off valve. First ends of the first air supply pipe and...
US20110166767 COMPENSATION FOR OXYGENATED FUELS IN A DIESEL ENGINE  
A fuel compensation factor (FCF) is determined to account for the amount of oxygenated fuel blended in diesel fuel. In one embodiment, the FCF is based on an expected exhaust gas oxygen...
US20150105996 VISCOSITY DETECTION USING STARTER MOTOR  
Various methods for inferring oil viscosity and/or oil viscosity index in an internal combustion engine are provided. In one example, a new control method comprises cranking the engine during a...