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| Number | Title | Issue Date |
| 7418857 | Air quantity estimation apparatus for internal combustion engine This air quantity estimation apparatus includes models M2 to M7 which are configured on the basis of physical laws. The apparatus estimates pressure Pic and temperature Tic of air within the intercooler, by use of the compressor model M4 and the... | 09/02/2008 |
| 7415345 | Method for operating an internal combustion engine In operation of an internal combustion engine, an air filling (rl) in a combustion chamber is ascertained, taking into account a pressure (ps) in an intake conduit. It is proposed that the air filling (rl) be ascertained on the basis of a model (A), which as its inp... | 08/19/2008 |
| 7398649 | System and method for influencing the induction gas temperature in the combustion chamber of an internal combustion engine The invention relates to a system and method for use in a homogeneous charge compression ignition (HCCI) combustion engine that is preferably equipped with an exhaust gas recirculation device. This system and method enable an improved adjustment of the temperature l... | 07/15/2008 |
| 7395700 | Intake device for internal combustion engine and method of measuring intake air amount An intake device for an internal combustion engine includes a restriction valve provided in an air intake path of the engine, and an air flow rate sensor for measuring the amount of air suctioned into the air intake path which is provided on the downstream side of t... | 07/08/2008 |
| 7383815 | Air flow measuring device formed integrally with electronically controlled throttle body An air flow sensor for an internal combustion engine is disclosed. An air flow rate measurement meter, a pressure gauge, electronically controlled throttle body, and the microcomputer, etc. are integrated as one body, and the correction of the air flow rate, the con... | 06/10/2008 |
| 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 manifold, such model providing a relationship between expected outpu... | 06/03/2008 |
| 7380448 | Malfunction detection apparatus for pressure sensor A malfunction detection apparatus is disclosed for a forced induction system. The system includes a compressor provided on an upstream side of a throttle valve in an intake passage of an engine, an upstream intake pressure sensor that detects intake pressure between... | 06/03/2008 |
| 7379809 | Control system A control system which is capable of enhancing both the stability and the accuracy of control when the output of a controlled object is feedback-controlled by a plurality of control inputs. An ECU 2 of a control system 1 controls engine speed NE during... | 05/27/2008 |
| 7377161 | Air flow measuring device provided with a vent in air passage The present invention provides an air flow measuring device comprising a housing with a sub-passage having a inlet and a outlet for air flow formed in the housing, the sub-passage further having a predefined curvature with a maximum downstream point and a flow measu... | 05/27/2008 |
| 7370518 | Heating resistor type fluid flow rate measuring apparatus and control apparatus for internal combustion engine having the measuring apparatus To realize a control apparatus for an internal combustion engine having a heating resistor type air flow rate measuring apparatus which can effectively remove salinity adhered to the heating resistor. Salt adheres not only to the heating portion of a heating resisto... | 05/13/2008 |
| 7367181 | System for assisting the regeneration of depollution means integrated in an exhaust line of a heat engine The system for assisting the regeneration of depollution means (1) integrated in an exhaust line (2) of a heat engine (3) of a motor vehicle, by switching the engine between operation in lean mode and operation in rich mode in accordance with va... | 05/06/2008 |
| 7367188 | System and method for diagnostic of low pressure exhaust gas recirculation system and adapting of measurement devices A system for a diesel engine having an intake manifold and an exhaust manifold, comprises a turbocharger between the intake and exhaust manifolds; a low pressure exhaust gas recirculation system having a first valve coupled thereto for regulating flow; a high pressu... | 05/06/2008 |
| 7359791 | Internal-combustion engine with means for determining the mass of fresh intake air, and associated method of determination An internal-combustion engine, comprises at least one cylinder, at least one intake pipe and at least one exhaust pipe associated to the cylinder, at least one intake valve and at least one exhaust valve, which control passage through the intake and exhaust pipes, w... | 04/15/2008 |
| 7359795 | Calibration method for air intake tracts for internal combustion engines A Calibration Method for Air Intake Tracts for Internal Combustion Engines is disclosed. The method tunes the replacement cold air intake so that the Original Equipment Mass Airflow Sensor will function with the emissions control system without check engine light il... | 04/15/2008 |
| 7359794 | Control device for internal combustion engine An intake pressure is successively detected by a pressure sensor, and an intake pressure derivative is calculated. Next, a peak pressure detecting range for each cylinder is set based on the intake pressure derivative. Next, an upward peak pressure and a downward pe... | 04/15/2008 |
| 7354341 | System and method for detecting an air flow condition indicative of plugging of a discharge apparatus of an agricultural combine A system and method for detecting a condition indicative of onset of plugging or actual plugging of discharge apparatus of an agricultural combine, utilizing an air flow sensor disposed in relation to the discharge apparatus for sensing one or more air flow characte... | 04/08/2008 |
| 7353699 | Electronic throttle control supercharging A drive system. The drive system includes an engine configured to convert chemical energy into mechanical energy, an electronically-controlled air throttle configured to regulate air delivery to the engine, a supercharger configured to selectively increase pressure ... | 04/08/2008 |
| 7347193 | Method and device for determining the mass flow rate passing through the air-bleed valve of an internal combustion engine tank A device for determining the mass flow via a tank venting valve for an internal combustion engine including an intake manifold and a throttle valve, the intake manifold being connected to the tank venting valve and an exhaust gas recirculation system, one measuring ... | 03/25/2008 |
| 7349796 | Apparatus and method for judging a piston position in an engine Detection of which of a plurality of reference angle positions a crankshaft of an engine arrives at is executed to subsequently determine a crank angle region in which an output pattern of a cam angle signal is determined, based on which of the plurality of referenc... | 03/25/2008 |
| 7347183 | Control apparatus and control method for engine For accurately estimating an air quantity flowing into a cylinder at the time of operating an intake control valve, a control apparatus for an engine according to the present invention is provided with an intake control valve which can open/close an intake passage i... | 03/25/2008 |
| 7334567 | Method for operating an internal combustion engine An internal combustion engine includes a charge motion flap which influences the combustion in at least one combustion chamber of the internal combustion engine. The function of the charge motion flap is monitored. At least one actual value of a variable characteriz... | 02/26/2008 |
| 7320308 | Method of cylinder pressure sensor data/angle capture for low and high resolution A method/system for measuring cylinder pressures of an internal combustion engine includes a crank angle sensor utilized to generate pressure readings at known angular intervals. Additional time-based pressure measurements are taken in selected angular windows betwe... | 01/22/2008 |
| 7318342 | Method for model-based determination of the fresh air mass flowing into the cylinder combustion chamber of an internal combustion engine during an intake phase A method for model-based determination of the total fresh air mass flowing into the cylinder combustion chamber of an internal combustion engine during an intake phase is described. The method includes, steps of ascertaining a first partial air mass on the basis of ... | 01/15/2008 |
| 7318409 | Vehicle engine control system utilizing humidity sensor A system and method for utilizing a humidity sensor with an internal combustion engine of a vehicle is described. Specifically, information from the humidity sensor is used to adjust a desired air-fuel ratio to reduce engine misfire while improving vehicle fuel econ... | 01/15/2008 |
| 7313954 | Apparatus for measuring flow characteristics A flow detection device for detecting a flow characteristic of a fluid within a pipe is disclosed. The flow detection device includes a first channel portion that defines a first channel with an upstream aperture. The fluid can flow into the first channel through th... | 01/01/2008 |
| 7302835 | Method and device for determining a phase position between a crankshaft and a camshaft of an internal combustion engine The invention relates to a method and device for determining a phase position between a crankshaft and a camshaft of an internal combustion engine. An internal combustion engine is provided with a crankshaft, a camshaft, at least one cylinder and an intake tract to ... | 12/04/2007 |
| 7302937 | Calibration of model-based fuel control for engine start and crank to run transition A fuel control system for regulating fuel to cylinders of an internal combustion engine during an engine start and crank-to-run transition includes a first module that determines a plurality of step-ahead cylinder air masses (GPOs) for a cylinder based on a pluralit... | 12/04/2007 |
| 7305301 | Engine pre-throttle pressure estimation An engine control system for regulating operation of an engine having a throttle includes a first module that determines an intermediate parameter based on engine operating parameters and a second module that determines a pressure upstream of the throttle based on t... | 12/04/2007 |
| 7299788 | Internal combustion engine and method of detecting abnormality of internal combustion engine When fuel supply is stopped while an engine is decelerating, pressure in each cylinder is detected using a pressure sensor, and the peak value of the pressure in each cylinder is determined. Also, an intake air amount is detected when the fuel supply is stopped, and... | 11/27/2007 |
| 7302335 | Method for dynamic mass air flow sensor measurement corrections A mass airflow sensor measurement correction system for a turbocharged diesel engine operating under transient conditions includes a signal input device that generates an engine speed signal based on an engine speed of a turbocharged diesel engine. A control module ... | 11/27/2007 |
| 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 variable inter-intake cam phase mechanisms 80, identifies ... | 11/13/2007 |
| 7286925 | Method for pulsation correction within a measuring device measuring a media mass flow A method and a device for the pulsation correction of measured values of a flow device, which is used to measure pulsating gas flows in internal combustion engines. A raw signal of the flow sensor is fed to an adder of a compensation circuit. The raw signal is at th... | 10/23/2007 |
| 7281423 | Characteristics adjusting apparatus of physical quantity sensing device and a thermal type air flow measuring instrument, and associated adjusting method The output characteristics of the sensing device or the control quantity of the sensing element can be adjusted by extracting an adjusting terminal in addition to a power source terminal, a ground terminal, an output terminal and the like outside a housing containin... | 10/16/2007 |
| 7280927 | Method and system for providing a linear signal from a mass airflow and/or liquid flow transducer A method and system for providing a linear signal from a flow transducer. A non-linear raw signal can be obtained from a mass flow transducer. An approximated error comprising a discrete sinusoidal function incremented by a variable and selectable omega value can th... | 10/09/2007 |
| 7277802 | Method and system for providing a linear signal from a mass flow transducer A method and system for providing a linear signal from mass flow transducer approximates the error from the original raw signal using discrete sine functions and subtracts the approximated error from the original raw signal. The method and system can be implemented ... | 10/02/2007 |
| 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 engine's states at least a fraction of an engine cycle (and preferably at... | 10/02/2007 |
| 7275425 | Method for testing at least three sensors, which detect a measurable variable for an internal combustion engine A method for checking at least three sensors which detect a measured quantity in the area of an internal combustion engine. A measure of the sensor signal of the particular sensor to be checked is compared to a reference signal which is obtained from at least one pa... | 10/02/2007 |
| 7273046 | Air-fuel ratio controller for internal combustion engine and diagnosis apparatus for intake sensors A computer calculates an estimated cylinder-intake-air amount based on outputs from an airflow meter and a throttle position sensor, and then calculates a reference cylinder-intake-air amount based on an air-fuel ratio in an exhaust gas and fuel injection amount. An... | 09/25/2007 |
| 7267117 | Method and device for controlling the exhaust gas recirculation in an internal-combustion engine based on the measurement of the oxygen concentration in the gaseous mixture taken in by the engine A method and a device for controlling the exhaust gas recirculation in an internal-combustion engine are described herein. The engine is provided with an air-intake system, a gas-exhaust system, and an exhaust-gas-recirculation system. A linear oxygen sensor is arra... | 09/11/2007 |
| 7269498 | Method and device for controlling an internal combustion engine A device and a method for controlling an internal combustion engine, in particular a diesel engine, are described. Based on the signal from a structure-borne noise detector, parameters are determined which are used to regulate the internal combustion engine. At leas... | 09/11/2007 |
