Matches 1 - 50 out of 194 1 2 3 4 >
Match Document Document Title
7380447 Method and system for transient airflow compensation in an internal combustion engine  
A method for determining airflow to a cylinder of an internal combustion engine, such airflow passing to the cylinder through an intake manifold. The method includes providing a model of the intake...
7295912 Intake air volume controller of internal combustion engine  
An intake air amount control system for an internal combustion engine, which controls respective amounts of intake air drawn into four cylinders # 1 to # 4 , independently of each other, by...
7275426 Internal combustion engine control system  
A control system for an internal combustion engine includes a virtual engine model which mathematically represents the states of the engine in real time, but which is programmed to provide the...
7266442 Adaptive throttle model for air intake system diagnostic  
A method and system to optimize values of a plurality of calibration discharge coefficients useable in a computer program operable to estimate mass air flow into an internal combustion engine...
7231909 Air intake apparatus and control apparatus for an internal combustion engine  
In an air intake apparatus for an internal combustion engine providing a throttle body for each of a plurality of air intake passages provided for each cylinder of the internal combustion engine,...
7225793 Engine timing control with intake air pressure sensor  
An engine control apparatus is disclosed for determining crankshaft position and engine phase of an internal combustion engine through monitoring intake air pressure fluctuations. The opening of...
7207314 Control circuit module, intake air passage body, engine electronic control device, and engine air intake system provided with the same  
An engine electronic control unit is inserted through a through hole provided in an intake pipe and mounted in an intake air passage in a direction substantially perpendicularly with respect to a...
7124626 Device for determining at least one parameter of a medium flowing in a line  
A device for determining at least one parameter of a medium flowing in a line, particularly the intake air mass of an internal combustion engine, having one part which has at least one measuring...
7107978 Engine control system  
An engine control system is configured to improve the estimation accuracy of a fresh intake air quantity and a total intake air quantity that flows into the combustion chambers. The engine control...
7099767 Control device for internal combustion engine  
An intake passage upstream of a throttle valve is divided into a plurality of intake divided-flow conduits, and air flow meters are arranged in the respective intake divided-flow conduits. The...
7089788 Intake air flow rate measuring device of an internal combustion engine  
A measurement structure that projects into an intake passage is provided with a shunt plate adjacent to a first passage that extends from an air inlet to an air outlet. A second passage is formed...
7076359 Method for producing at least one characteristic line of an air mass detecting device for an internal combustion engine  
In a method for producing at least one characteristic line of an air mass detecting device for an internal combustion engine precise results can be obtained in the case of a pulsating air flow in a...
7069773 Manifold air flow (MAF) and manifold absolute pressure (MAP) residual electronic throttle control (ETC) security  
An engine fault diagnostic system includes a diagnostic module that generates a manifold absolute pressure (MAP) error signal and that generates a mass air flow (MAF) error signal. A security...
7010423 Method for operating an internal combustion engine  
A method and a control unit for operating an internal combustion engine of a motor vehicle are provided, in particular for controlling/regulating the internal combustion engine as a function of an...
6983734 Intake flow rate detecting apparatus of internal combustion engine and method of same  
In order to provide an intake flow rate detecting apparatus of an internal combustion engine which accurately compensates for an air flow meter detection error due to intake pulsation so as to make...
6976475 Method for detecting a leakage in the intake port of a combustion engine, and a combustion engine equipped for implementing the method  
In a combustion engine, the fuel quantity is determined as a function of the inflowing air mass. As a measure for the inflowing air mass, one uses either a main load signal, which is generated by...
6973823 Device for determining at least one parameter of a medium flowing in a line  
A device for determining at least one parameter of a medium flowing in a line, in particular the intake air mass of an internal combustion engine, has a part provided for introducing into the line,...
6955080 Evaluating output of a mass air flow sensor  
A method of evaluating output of a mass air flow sensor. The method includes integrating, over time intervals, mass air flow values corresponding to the time intervals to obtain a running sum of...
6925864 Method of operating an internal combustion engine  
The invention is directed to a method for operating an internal combustion engine including an actuating member in an air supply for adjusting an air mass to be supplied to the engine. In the...
6920784 Flow conditioning device  
The present invention involves an air induction system for inducing ambient air to a vehicle engine. The system comprises an air filter for filtering the ambient air, a clean air duct, a sensor,...
6901790 Internal combustion engine induction air volume calculating apparatus  
A deviation DGAIR between a first induction air volume GAIRTH that is calculated (S 10 ) based on a detected value (Gair) of an air flow meter and a second induction air volume GAIRPB that is...
6899081 Flow conditioning device  
The present invention is generally directed towards an air induction system in a motor vehicle. The air induction system comprises an air filter, a clean air duct, a mass air flow sensor housing...
6892699 Throttle body and air intake equipment for internal combustion engine  
A throttle body for an internal combustion engine includes an airflow sensor for measuring the flow rate of air passing through a throttle bore, a throttle position sensor for measuring the opening...
6877367 System and method for measuring brake mean effective pressure in a running vehicle  
The present invention provides a method for easily measuring a brake mean effective pressure of a running vehicle. An air flow sensor, a λ sensor and a data collecting apparatus are mounted to the...
6856890 Intake air amount estimation apparatus and method for internal combustion engine  
In an internal combustion engine wherein a valve timing can be changed in at least two stages and wherein an exhaust gas recirculation passage provided with a control valve is connected to an...
6851304 Air estimation approach for internal combustion engine control  
A method is described for estimating cylinder charge using either the throttle position or mass air flow sensor. The method saves calibration and development expenses by using the same manifold...
6850831 Method and system for estimating cylinder charge for internal combustion engines having variable valve timing  
A method for determining cylinder air charge and/or cylinder burned gas for an internal combustion engine system. The engine system includes cylinders, each one of such cylinders having at least...
6799454 Method for functional checking of an exhaust recycling system on an internal combustion engine  
For the checking of an exhaust gas recycling valve, the control signal for the exhaust gas return valve is returned from a defined value to zero, in the idle state of the internal combustion engine...
6789414 Estimation apparatus of air intake flow for internal combustion engine and estimation method thereof  
In an estimation apparatus of an air intake flow for an internal combustion engine, an air intake flow rate fed into a portion just upstream of an intake valve at a predetermined timing before...
6779390 Failure diagnosis apparatus for exhaust gas recirculation system  
A failure diagnosis apparatus for an exhaust gas recirculation system eliminates the influence of various disturbance factors that vary the suction air pressure, diagnoses a failure of the exhaust...
6748313 Method and system for estimating cylinder air charge for an internal combustion engine  
A method is provided for estimating cylinder air charge in an internal combustion engine, such engine having a mass airflow (MAF) sensor and a manifold absolute pressure(MAP) sensor. The method...
6745619 Diagnostic method for variable compression ratio engine  
A diagnostic method for a motor vehicle having an internal combustion engine operable in a plurality of compression ratio operating states includes the steps of determining a change in idle air...
6741924 Apparatus and method for engine cylinder intake air quantity calculation  
A cylinder intake air mass quantity for an engine is calculated in accordance with the cylinder intake air volume quantity, the manifold air mass quantity and a manifold volume. The cylinder intake...
6728627 Apparatus and method for measuring intake air flow amount of internal combustion engine  
In an internal combustion engine provided with a variable valve mechanism that varies a valve operating characteristic of an intake valve, the valve operating characteristic of the intake valve is...
6728624 Method for estimating the filling of a cylinder in an internal combustion engine  
Method for estimating the filling of a cylinder in an internal combustion engine provided with cam stroke variation system. A theoretical induction efficiency which the cylinder would have if it...
6718822 Feed-forward observer-based control for estimating cylinder air charge  
A system and method for controlling an internal combustion engine to improve air/fuel ratio control using a feed-forward observer-based control strategy include estimating current and future...
6711489 Method for estimating engine cylinder variables using second order sliding modes  
A method for real time estimation of air charge, residual gas, and backflow in an engine cylinder, i.e., in-cylinder variables, by estimating total mass flow into and out of the cylinders. These...
6691022 Intake air quantity measurement for internal combustion engine  
In an engine capable of continuously controlling an intake air quantity by varying an intake valve operating characteristic, an intake valve lift is sensed as well as an engine speed. Then, an...
6688166 Method and device for controlling an internal combustion engine  
A method and device are for controlling an internal combustion engine. Using at least one model, an oxygen quantity flowing into the internal combustion engine is determined on the basis of at...
6671613 Cylinder flow calculation system  
An improved method for estimating cylinder flow in an internal combustion engine under all operating conditions is provided. If the MAF sensor is not operational, an estimation algorithm that is...
6655357 Abnormality detection apparatus for intake system of internal combustion engine  
An abnormality detecting apparatus for an intake system of an internal combustion engine, which detects an abnormality of the intake system, is disclosed. The intake system has a throttle valve, a...
6655201 Elimination of mass air flow sensor using stochastic estimation techniques  
A method and apparatus for determining the mass air flow into an internal combustion engine without the use of a mass air flow sensor. Speed density and throttle position methods of estimating mass...
6604412 Sensor diagnostics  
A method for obtaining an accurate cylinder air-charge estimate is presented. First, a sensor-based powertrain torque estimate is obtained. Next, a torque converter-based powertrain torque estimate...
6601382 Method and apparatus for determining a temperature of an emission catalyst  
A control system and method for controlling an engine ( 10 ) of an automotive vehicle having a catalyst ( 34 ) and controller ( 40 ) is set forth herein. The controller ( 40 ) is configured to...
6581447 Method for determining the air aspirated by an internal combustion engine, and sensor for an internal combustion engine  
In a method for determining the air aspirated by an internal combustion engine, in which the air flow rate is detected by an air flow rate meter, simultaneously with the detection of the air flow...
6568257 Cylinder air charge estimate  
A method for obtaining an accurate cylinder air-charge estimate is presented. First, a sensor-based powertrain torque estimate is obtained. Next, a torque converter-based powertrain torque estimate...
6564785 Cylinder intake-air quantity calculating apparatus and method for internal combustion engine  
In apparatus and method for calculating a mass air quantity sucked into a cylinder of an internal combustion engine, income and outgo calculations between a mass air quantity flowing into an intake...
6550319 Fault diagnostic for an internal combustion engine having air assisted injectors  
An internal combustion engine having electronic throttle control includes an air assisted injector system for directing a controlled amount of air directly to the combustion chamber without passing...
6546789 Method and arrangement for monitoring the operation of an intake-manifold flap for switching over the intake manifold of an internal combustion engine  
The invention is directed to a method for monitoring the operation of an intake-manifold flap for switching the intake manifold of an internal combustion engine. The engine rpm (nmot) is measured...
6539786 Sensor attachment arrangement having extending members  
A vehicle sensor assembly includes a plurality of engagement members which lock into a sensor receipt member attached to a vehicle gas directing component. Each of the engagement members include a...
Matches 1 - 50 out of 194 1 2 3 4 >