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8050852 Abnormality detection device for internal combustion engine and air/fuel ratio control apparatus for internal combustion engine  
An abnormality detection device for an internal combustion engine capable of performing abnormality detection with accuracy, and an air/fuel ratio control apparatus for an internal combustion...
8015967 Air-fuel ratio control apparatus  
An air-fuel ratio control apparatus is applied to an internal combustion engine including a variable lift mechanism which changes a lift amount of an intake valve. An oxygen sensor, which outputs a...
7987839 Method to determine a fuel composition  
The invention concerns a method to determine the composition of a fuel from the components ethanol and gasoline of an internal combustion engine, wherein the fuel is supplied to the internal...
7930147 Sensor response time accelerator  
A sensor response time acceleration method including the steps of reading a signal step and an operating on the signal step. The reading a signal step includes reading a signal from a sensor, the...
7885753 Method and device for operating an internal combustion engine  
In a first operating state, the fuel metering of one of the cylinders is controlled in first metering pulses with the same pulse characteristic during a respective one working cycle, and the...
7869912 Controlling device of hybrid vehicle  
This invention relates to a hybrid vehicle controlling device and method of using the device, in which an engine torque proportion (which is transmitted from an engine to a driving shaft) of a...
7841326 Method for operating an internal combustion engine  
A method for operating an internal combustion engine working according to the Otto principle, in which fuel, particularly gasoline, is injected directly into a combustion chamber and is inflamed by...
7742868 Method and apparatus for controlling fuel reforming under low-load operating conditions using exhaust recompression in a homogeneous charge compression ignition engine  
A direct injection spark ignition multi-cylinder internal combustion engine operative in a controlled auto-ignition combustion mode includes a direct fuel injection system, a spark ignition system...
7597092 Internal combustion engine and method for controlling a supercharged internal combustion engine  
The invention relates to n internal combustion engine and method for controlling a supercharged internal combustion engine, wherein a deviation of the actual lambda value from a calculated lambda...
7540279 High efficiency stoichiometric internal combustion engine system  
A power system including a stoichiometric compression ignition engine in which a roots blower is positioned in the air intake for the engine to control air flow. Air flow is decreased during part...
7533662 Apparatus for and method of controlling air-fuel ratio of engine  
A technique of controlling an air-fuel ration for an engine, in which an air-fuel ratio feedback correction coefficient α to correct an amount of fuel injection into the engine is computed based ...
7516618 Engine air supply control method which is intended, for example, for the control of a turbocharged engine  
An engine air supply control method relating to a turbocharged engine including an intake manifold (20) which is disposed downstream of the compressor of the turbocharger (14) and an exhaust...
7472697 Air-fuel ratio control apparatus  
An air-fuel ratio control apparatus is applied to an internal combustion engine including a variable lift mechanism which changes a lift amount of an intake valve. An oxygen sensor, which outputs a...
7474955 Method and apparatus for air fuel ratio adjustment  
The air fuel ratio of an engine adapted to run on a mixture of alcohol and gasoline can be adapted by a method wherein the air fuel ratio is controlled using an ethanol adaptation value, including...
7469693 Advanced engine management of individual cylinders for control of exhaust species  
A method and system controls engine-out exhaust species of a combustion engine having a plurality of cylinders. The method typically includes various combinations of steps such as controlling...
7469685 Control apparatus for internal combustion engine  
The control apparatus for the internal combustion engine increases a fuel injection amount under predetermined conditions, such as after the start of the internal combustion engine, at cold time,...
7438066 Method and device for controlling an internal combustion engine  
A method and device for controlling an internal combustion engine, in which the fuel quantity to be injected into the engine is limited to a limiting value. The limiting value is predefined on the...
RE40431 Method of regulating an internal combustion engine  
Method of regulating an internal combustion engine in order to reach presettable nitrogen oxide emission values of the internal combustion engine, wherein the internal combustion engine is supplied...
7380547 Adaptive NOx emissions control for engines with variable cam phasers  
A control system for adjusting levels of emissions exiting an engine includes a NOx sensor that generates a NOx signal in response to oxides of nitrogen (NOx) in an exhaust gas and a control module...
7363920 Fuel supply control system for internal combustion engine  
A fuel supply control system for an internal combustion engine having at least one fuel injection valve for injecting fuel into an intake pipe or a combustion chamber of the engine. A flow rate of...
7305977 System for controlling regeneration of lean NOx traps  
A control system and method for controlling torque output of an engine include an air control module that receives an actual airflow and a desired airflow and outputs an adjusted actual airflow...
7293555 Controller and control method for internal combustion engine  
A controller approximates an output characteristic of an air flow meter using at least one parameter, and approximates a characteristic of a fuel injection characteristic of an injector using at...
7234455 Robust maximum engine torque estimation  
A system for a vehicle comprising of an engine including a first cylinder group and a second cylinder group; a linear exhaust gas sensor coupled exclusively to the first cylinder group; a switching...
7201160 Air-fuel ratio sensor monitor, air-fuel ratio detector, and air-fuel ratio control  
An air-fuel ratio sensor monitor is provided which is designed to monitor reactive characteristics or response rates of an air-fuel ratio sensor when an air-fuel ratio of a mixture to an internal...
7167791 Oxygen depletion sensing for a remote starting vehicle  
Automotive vehicles are increasingly being equipped with remote starting devices. If the vehicle is within a space which is very well sealed, it is possible that the concentration of the exhaust...
7044118 Method and device for controlling injection in an internal combustion engine, in particular a diesel engine with a common rail injection system  
There is described a method of controlling injection in a vehicle internal combustion engine, wherein the intake air flow and exhaust lambda are measured to estimate the fuel quantity actually...
7036982 Method and apparatus to control an exhaust gas sensor to a predetermined termperature  
The invention provides a control strategy and a control system to control a gas sensor to a target operating temperature. It relies upon both feedback and model-based feedforward control systems to...
7004125 Valve train system of internal combustion engine and control method thereof  
A valve train system for operating an intake valve of an internal combustion engine, in which an operation amount of the intake valve is controlled. When it is determined that there is a need of...
6932052 Air/fuel ratio control system for gaseous fueled engines  
The invention provides a system that controls the air intake pressure of a venturi mixer in an air/fuel ratio control system for gaseous fueled engines to match the fuel vaporizer/regulator output...
6868326 Control apparatus, control method, control unit, and engine control unit  
There are provided a control apparatus capable of controlling a controlled object with reduce dead time in sign inversion between the input to and the output from one of ΔΣ and ΣΔ modulation alg...
6827069 Detection of fuel dynamical steady state  
An engine control system that identifies fuel dynamical steady state (FDSS) includes a cylinder and a controller that determines a detection period. The controller monitors a mass of fuel ingested...
6826471 Method for determining nitrogen oxide content in internal combustion engine exhaust gases containing oxygen  
An operating internal combustion engine with at least one cylinder (2), and a piston (12), which can move in an alternating manner therein, is used to compress a fuel mix in a combustion chamber...
6758201 Fuel injection control system for internal combustion engine  
A fuel injection control system for an internal combustion engine is capable of expanding a correction allowable range employed in correcting a fuel injection quantity when refueling is detected....
6698186 Air-fuel ratio controller for internal combustion engines  
A target air-fuel ratio KCMD for an exhaust gas upstream of a catalytic converter is sequentially determined to converge the output VO2/OUT of an O2 sensor downstream of the catalytic converter to...
6684868 Fuel injection control apparatus of internal combustion engine  
There is provided a fuel injection control apparatus for an internal combustion engine, which includes an O2 sensor and a feedback controller that performs a feedback control of the injection...
6626164 Automotive four-cycle engine  
A four-cycle engine is provided with valve timing adjusters for adjusting opening and closing timing an and an exhaust valve. In medium- to high-speed ranges in medium- to high-load regions of the...
6604502 Method for controlling an internal combustion engine during engine shutdown to reduce evaporative emissions  
A method of controlling an engine 12 during engine shutdown to reduce evaporative emissions is provided. The method includes a step 50 of shutting off a fuel pump 28 of the engine 12. The method...
6581571 Engine control to reduce emissions variability  
A system and method of controlling an engine includes sensing a concentration of NOx in exhaust gases produced by the engine and generating a sensed NOx value representative thereof, and...
6571783 Ignition control device and method  
The present invention relates to an ignition control device for the control of an ignition coil device for an internal combustion engine having an engine speed detection device for detecting the...
6550465 Cylinder air/fuel ratio estimation system of internal combustion engine  
In a direct injection spark ignition engine which is operable in three operation modes including a stoichiometric air/fuel ratio operation mode, a pre-mixture combustion mode and a stratified...
6543398 High efficiency compression ignition aftertreatment devices for combined use of lean-burn combustion systems and three-way catalysts  
A high efficiency compression ignition after-treatment system of a combustion engine includes a first combustion chamber adapted to reciprocatably receive a first piston assembly and a second...
6520167 Engine for a marine vehicle  
An engine for a marine vehicle includes a controller having a predetermined map defining a relationship between a fuel injection parameter and an engine operation characteristic. Additionally, the...
6508230 Revolution number control system for engine  
A revolution number control system includes ignition timing delay controlling means for delaying ignition timing from the ignition advance amount n at first prescribed value n2 when the engine...
6484688 Control methodology for an internal combustion engine that utilizes a combustion condition sensor  
An internal combustion engine that utilizes a control system for improving operation of the engine under a variety of conditions. The control system includes a sensor that directly senses a...
6484709 Valve arrangement for combustion sensor  
An arrangement for utilizing a combustion sensor with an internal combustion engine. The arrangement includes a sensor mounted to the outside of an engine cylinder for communication with exhaust...
6474323 Optimized lambda and compression temperature control for compression ignition engines  
The performance of a compression ignition internal combustion engine is improved by optimizing excess air ratio (lambda) and/or intake air charge temperature (ACT) on a full time, fall range basis....
6351943 Air-fuel ratio control apparatus for exhaust gas from internal combustion engine  
In a stoichiometric operation mode after a lean operation mode, a control unit sequentially generates data representing an estimated value of an output VO2/OUT of an O2 sensor after the dead time...
6273077 Method and apparatus for operation of an internal combustion engine, especially of a motor vehicle, with a lean fuel/air mixture  
The method of operating an internal combustion engine, especially of a motor vehicle, having a combustion chamber (4), which is operable in a plurality of combustion cycles, includes feeding an air...
6186131 Fuel injection amount control method and apparatus for internal combustion engine  
The engine of the present invention has a plurality of cylinders that are divided into a first group and a second group. An air flow meter for detecting an amount of air supplied to the engine is...
6182647 Fuel injection control apparatus and fuel injection method  
When a pulse width limitation control is carried out, an air-fuel ratio feedback correction control such as O2 feedback or an A/F (air-fuel ratio) learning correction control is prohibited or...
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