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Class 701/103 - Control of air/fuel ratio or fuel injection


Subclass of Class 701 - Data processing: vehicles, navigation, and relative location
Definition: Control system wherein the digital or programmed data processing system is designed to control
No. of applications: 1160
Last issue date: 05/24/2012


1                      
Application No.Application TitleIssue Date
20120130620METHOD FOR ESTIMATING AN INSTANTANEOUS PRESSURE VALUE IN A FUEL LINE OF A FUEL INJECTION SYSTEM
A method is provided for estimating an instantaneous pressure value Pinst in a fuel line of a fuel injection system during a fuel multi-injection pattern. The method includes, but is not limited to determining a mean pressure value P in...
05/24/2012
20120109500METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE
In a method for operating an internal combustion engine having an intake tract and one injection valve per cylinder, a lambda controller having an associated lambda sensor for correcting an air-fuel ratio in the combustion chamber, an engine operating temperature is det...
05/03/2012
20120109496FUEL INJECTION SYSTEM
A method for controlling the supply of a first fuel and a second fuel to an engine, which engine is fuelled by the first fuel only in a first mode of operation and by a mixture of the first fuel and the second fuel in a second mode of operation, the method comprising th...
05/03/2012
20120109499METHOD FOR REGULATING A GAS ENGINE
The invention relates to a method for regulating a gas engine (1) having a generator (5), wherein a regulator torque is calculated by means of a speed regulator from a speed regulator deviation, wherein a target volume flow is calculated at least as a func...
05/03/2012
20120109498CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE
A control apparatus for an internal combustion engine includes a fuel injection portion that carries out fuel injection for the internal combustion engine, a recirculation portion that recirculates to an intake system evaporative gas of injected fuel that has been mixed...
05/03/2012
20120109497ABNORMAL INTER-CYLINDER AIR-FUEL RATIO IMBALANCE DETECTION APPARATUS FOR MULTI-CYLINDER INTERNAL COMBUSTION ENGINE
The invention provides an abnormal inter-cylinder air-fuel ratio imbalance detection apparatus for a multi-cylinder internal combustion engine. The abnormal inter-cylinder air-fuel ratio imbalance detection apparatus is provided with: an air-fuel ratio sensor provided a...
05/03/2012
20120083994CONTROLLER FOR INTERNAL COMBUSTION ENGINE
A multicylinder engine is provided with a fuel injector for each cylinder. An ECU defines a fuel injection condition of the fuel injector based on an engine driving condition and executes a fuel injection control for each cylinder based on the defined fuel injection con...
04/05/2012
20120083993ENGINE CONTROLLING APPARATUS
An engine controlling apparatus includes a setting unit that sets a demand torque to an engine, a detection unit that detects a fluctuation of an external load, and a correction unit that corrects the demand torque. The apparatus includes a target torque calculation uni...
04/05/2012
20120072095MALFUNCTION DETECTING DEVICE FOR INTERNAL COMBUSTION ENGINE
A malfunction detecting device for an internal combustion engine is mounted on a vehicle and includes an engine and a control unit. The engine is a multi-cylinder engine and is a bifuel-enabled engine which is capable of switching plural kinds of fuels including a gas f...
03/22/2012
20120072093Apparatus and Method for Controlling Fuel Injection of Internal Combustion Engine
The present invention relates to a fuel injection control apparatus for controlling fuel injection and a method therefor in an engine having first and second intake passages provided with first and second fuel injection valves, respectively. Fuel injection modes using t...
03/22/2012
20120072094METHOD FOR THE AUTOMATIC LAMBDA CONTROL OF AN INTERNAL COMBUSTION ENGINE
A method for automatic lambda control of an internal combustion engine, in which, upon detection of a predetermined operating state of the internal combustion engine, a calibration factor (KAL) is determined and in which, during the operation of the internal combustion ...
03/22/2012
20120053820AIR-FUEL RATIO IMBALANCE AMONG CYLINDERS DETERMINING APPARATUS OF A MULTI-CYLINDER INTERNAL COMBUSTION ENGINE
When, for example, a predetermined operating condition such as a fuel cut operating condition is satisfied (time-point tfc), an air-fuel ratio imbalance among cylinder determining apparatus sequentially stops a fuel injection for each of cylinders in accordance with a f...
03/01/2012
20120046852Closed Loop Control of Fuel Viscosity in Multi-Fuel Engine
A system and method for controlling the viscosity of liquid fuel delivered from a fuel tank to the fuel injectors of an internal combustion engine. A viscosity sensor is placed in the fuel line, or in a bypass fuel line, in close proximity downstream the fuel injectors....
02/23/2012
20120042850MODEL-BASED TRANSIENT FUEL INJECTION TIMING CONTROL METHODOLOGY
A method for controlling a direct-injection internal combustion engine includes monitoring internal combustion engine operational parameters, determining a start of injection in response to the engine operational parameters, monitoring an intake air flow comprising a re...
02/23/2012
20120041665METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE WITH GAS AS A FUEL
A method for operating an internal combustion engine is provided. The method comprises, during low and medium load conditions, introducing fuel from a fuel tank by intake pipe injection into at least one intake air line coupled to at least one cylinder, and during high ...
02/16/2012
20120041664Method for powering an apparatus
An internal combustion engine is coupled to a supercharger operable to supply varying amounts of air to the engine responsive to the load on the engine. The supercharger has a pair of screw rotors driven by the engine to move air to the engine and a control apparatus fo...
02/16/2012
20120029789Methods 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 instantaneous heat being released within the cylinder (20) as a ...
02/02/2012
20120029791PRE-DELIVERY STRATEGY FOR DIESEL- ENGINE VEHICLES
A method to supply fuel to an engine of a vehicle is provided. The method includes adjusting a direct injection of fuel into a cylinder of the engine based on whether the vehicle is in a pre-delivery state. In one example, the method includes reducing an amount of fuel ...
02/02/2012
20120029790AIR-FUEL RATIO DIAGNOSTIC DEVICE FOR INTERNAL COMBUSTION ENGINE
An air-fuel ratio diagnostic device for an internal combustion engine. The device includes an air-fuel ratio that detects oxygen concentration in the exhaust. A determination unit determines a variation in air-fuel ratio between engine cylinders based on a detection val...
02/02/2012
20120022768FUEL RECOVERY
Fuel is recovered from a combustion engine without turning the combustion engine on. A controller initiates operation of a fuel pump of the combustion engine to cause the fuel pump to pump a predefined amount of fuel in the fuel line directly to a drain conduit....
01/26/2012
20120022767ERROR DETECTOR FOR INJECTION CHARACTERISTIC DATA
An error detector includes an injector-memory provided to a fuel injector injecting a fuel into an internal combustion engine, and an ECU-memory provided to an ECU. The injector-memory stores a characteristic data indicative of injection characteristics of the fuel inje...
01/26/2012
20120022740EMISSION DETERIORATION NOTIFYING DEVICE
An emission deterioration notifying device includes a low fuel pressure determining unit, an emission deterioration notifying unit, and an electric control unit. The determining unit determines whether supply pressure of fuel supplied to an injector is in a low fuel pre...
01/26/2012
20120022765FUEL INJECTION CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE
A fuel injection control system for an internal combustion engine, which is capable of properly performing instantaneous injection, thereby capable of attaining excellent exhaust emissions at the start of the engine, and performing prompt engine starting. In the fuel in...
01/26/2012
20120022769CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE
A control apparatus for an internal combustion engine is provided, the control apparatus being capable of effectively suppressing the inflow of fresh air into a catalyst due to an operational delay of the valve stop mechanism when an execution request for fuel cut is is...
01/26/2012
20120022766METHOD OF PROVIDING TRIM DATA FOR A FUEL INJECTION DEVICE
A method of providing electronic trim data for a fuel injection device to an engine system, the method comprising: reading an identifier associated with the fuel injection device; accessing a database containing trim data associated with the identifier; downloading the ...
01/26/2012
20120016566Method 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 a vapor storage canister....
01/19/2012
20120016567METHOD OF CONTROLLING THE COMBUSTION PHASE OF A FUEL MIXTURE OF A SPARK-INGNITION SUPERCHARGED INTERNAL-COMBUSTION ENGINE, NOTABLY OF GASOLINE TYPE
The present invention relates to a method of controlling the combustion phase of a fuel mixture of a spark-ignition supercharged internal-combustion engine comprising at least one cylinder (12) with a combustion chamber (14), at least one fuel supply means...
01/19/2012
20120016568COMBUSTION STATE DETECTION SYSTEM AND COMBUSTION STATE DETECTION METHOD FOR INTERNAL COMBUSTION ENGINE
Detecting a combustion state of an internal combustion engine includes calculating a one-step difference value and a two-step difference value of a physical quantity that correlates with torque generated by the internal combustion engine; detecting that a misfire has oc...
01/19/2012
20120004824NATURAL 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....
01/05/2012
20120004831CONTROLLER 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 pipe, and the gasoline is injected from a gasoline injector into the inta...
01/05/2012
20120004825Method for the Operation of an Internal Combustion Engine Comprising an Emission Control System that Includes an SCR Catalyst
A method for operating an internal combustion engine comprising an exhaust gas cleaning system that includes a SCR catalyst. In conjunction with a cold start and/or a warm-up of the internal combustion engine, the internal combustion engine is operated using a cold star...
01/05/2012
20120004833Method for Operating an Internal Combustion Engine with an Emission Control System
A method for operating an internal combustion engine comprising an emission control system that includes at least one catalytic and/or filter-effective emission control component. In conjunction with a cold start and/or a warm-up of the internal combustion engine, the i...
01/05/2012
20120004822Method and Device For Controlling an Internal Combustion Engine
A method and a device for controlling an internal combustion engine are described. At least one injector meters a certain fuel quantity to the internal combustion engine at a certain point in time on the basis of a first signal and/or a second signal. At least the first...
01/05/2012
20120004826DIESEL ENGINE AND METHOD OF CONTROLLING THE DIESEL ENGINE
A diesel engine is provided, which includes an engine body to be supplied with fuel containing diesel fuel as its main component, a geometric compression ratio being set to 15:1 or below, a fuel injection valve arranged in the engine body so as to be oriented toward a c...
01/05/2012
20120004827AIR-FUEL RATIO CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE
An air-fuel ratio control apparatus for an internal combustion engine includes an air-fuel ratio sensor having an output characteristic which is nonlinear with respect to the air-fuel ratio of exhaust gas. An output deviation converter is configured to convert an output...
01/05/2012
20120004830CONTROLLER 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) into an intake pipe (20), and gasoline is injected from ...
01/05/2012
20120004828SPARK IGNITION TYPE INTERNAL COMBUSTION ENGINE
The control system of an internal combustion engine of the present invention comprises an S/V ratio changing mechanism able to change an S/V ratio of a combustion chamber and a detection device having an output value changing in accordance with a hydrogen concentration ...
01/05/2012
20120004829Fuel Injection Control During Start-Up
A method of operation of an internal combustion engine including an intake valve coupled to a combustion chamber, and a port fuel injector positioned upstream of the intake valve in an intake manifold including a throttle, the port fuel injector fluidly coupled to a fue...
01/05/2012
20120004823INDUCTION BACKFIRE COMPENSATION FOR MOTORCYCLES
A control system for an engine having at least one manifold, a throttle, and a crank wheel, includes a pressure sensor to measure a pressure in the at least one manifold, a throttle position sensor to measure a position of the throttle of the engine, a revolution sensor...
01/05/2012
20110320106AIR-FUEL RATIO CONTROL APPARATUS AND AIR-FUEL RATIO CONTROL METHOD FOR INTERNAL-COMBUSTION ENGINE
An air-fuel ratio control apparatus for an internal-combustion engine includes an air-fuel-ratio sensor, a control-input calculator, an air-fuel-ratio controller, and a gain calculator. The air-fuel-ratio sensor is disposed in an exhaust channel in the internal-combusti...
12/29/2011
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