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| Number | Title | Issue Date |
| 7451754 | Control system for internal combustion engine A control system for an internal combustion engine, which is capable of enhancing the accuracy of fuel control and ignition timing control even when there is a possibility that the reliability of a calculated intake air amount lowers, and enables reduction of manufa... | 11/18/2008 |
| 7448369 | Method for controlling a fuel injector A method of controlling a fuel injector is disclosed. Multiple airflow rate regimes are associated with different fuel injection control methods. In one example, a low airflow rate regime is associated with a speed density control method and a high airflow rate regi... | 11/11/2008 |
| 7380396 | Method for protecting an exhaust aftertreatment system The method of the present invention is adapted to protect an exhaust aftertreatment system by preventing the system from becoming clogged and/or damaged during periods of light engine load. According to a preferred embodiment, the present invention protects the exha... | 06/03/2008 |
| 7370470 | Method for increasing the exhaust gas temperature of internal combustion engines A method for increasing the exhaust gas temperature of internal combustion engines, particularly for driving a motor vehicle under load in order to reach the necessary regeneration temperature of at least one component of an exhaust gas post-treatment system, has th... | 05/13/2008 |
| 7324889 | Intake-air quantity control system of engine In an intake-air quantity control system of an engine employing a variable valve operating device capable of controlling a cylinder intake-air quantity by variable control of an operating characteristic of an intake valve, in a normal intake-valve operating mode a t... | 01/29/2008 |
| 7322346 | Method and device for engine control in a motor vehicle A method is specified for controlling a combustion engine in a motor vehicle, namely for optimally adjusting an air/fuel ratio which is distinguished in that the air/fuel ratio is the result of a regulation process. Individual aspects of the invention further addres... | 01/29/2008 |
| 7311083 | Engine method A method for controlling an engine having both an electronically controlled inlet device, such as an electronic throttle unite, and an electronically controlled outlet device, such as a variable cam timing system is disclosed. The method of the present invention ach... | 12/25/2007 |
| 7305977 | System for controlling regeneration of lean NOtraps 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 based on the actual airflow and the desired airflow. A fuel control modu... | 12/11/2007 |
| 7299786 | Vehicle control system A method is provided for controlling an engine having an intake manifold and an outlet control device coupled to the manifold for controlling flow exiting the manifold and entering at least one cylinder of the engine. The engine further includes an inlet control dev... | 11/27/2007 |
| 7293556 | Method of controlling the injection begin of a fuel injection valve of an internal combustion engine In a method of controlling an internal combustion engine wherein an injection begin is calculated depending at least on an actual engine speed and the injection begin is corrected, the injection begin correction is calculated from a deviation of a desired air mass f... | 11/13/2007 |
| 7290531 | Integrated fuel supply system for internal combustion engine An electronic fuel injection system is combined with a carburetor in a carbureted internal combustion engine. The resulting air/fuel induction system comprises a carburetor air/fuel induction system in combination with an electronic fuel injection system which uses ... | 11/06/2007 |
| 7287525 | Method of feedforward controlling a multi-cylinder internal combustion engine and associated feedforward fuel injection control system The amount of fuel to be injected in each cylinder of a multi-cylinder spark ignition internal combustion engine may be determined with enhanced precision if the fuel injection durations are determined as a function of the sensed mass air flow in all the cylinders o... | 10/30/2007 |
| 7278414 | Diagnostic tool for sensing oxygen sensor heater operation A diagnostic testing system for a vehicle comprising an oxygen sensor having a heating element for heating the oxygen sensor to its minimum operational temperature, an analyzer having a user interface, a communications link between the analyzer and the vehicle to ob... | 10/09/2007 |
| 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 |
| 7255098 | Engine emissions control system An engine emissions control system is provided. The system may include an exhaust producing engine and an exhaust system through which the exhaust produced by the engine may flow. The system may also include a NOx sensor configured to take a NOx | 08/14/2007 |
| 7254474 | Diagnosis apparatus for internal combustion engine In a diagnosis apparatus for an internal combustion engine which determines the abnormality of a linear A/F sensor which is disposed on the upstream side of a catalyst of the engine and detects the A/F of exhaust gas, the apparatus includes a response/gain deteriora... | 08/07/2007 |
| 7249583 | System for controlling valve timing of an engine with cylinder deactivation Various systems and methods are disclosed for carrying out combustion in a fuel-cut operation in some or all of the engine cylinders of a vehicle. Further, various subsystems are considered, such as fuel vapor purging, air-fuel ratio control, engine torque control, ... | 07/31/2007 |
| 7200449 | Control system for plant and air-fuel ratio control system for internal combustion engine A control system for a plant, having an identifier and a controller. The identifier identifies model parameters of a controlled object model which is obtained by modeling the plant. The controller calculates a control input to the plant so that an output from the pl... | 04/03/2007 |
| 7181908 | Torque compensation method for controlling a direct-injection engine during regeneration of a lean NOx trap A torque compensation method for controlling a direct-injection gasoline engine during regeneration of a lean NOx trap disposed in an exhaust path of the engine determines a desired torque in accordance with driver demands, cruise control settings or idle control. A... | 02/27/2007 |
| 7164954 | Method for implementing indirect controller A system and method for implementing an indirect controller for a plant. A plant can be provided with both a direct controller and an indirect controller with a system model or a committee of system models. When the system model has sufficient integrity to satisfy t... | 01/16/2007 |
| 7151994 | Calculation of air charge amount in internal combustion engine Calculation models (22, 24) for an in-cylinder air charge amount determine an estimated intake air pressure (Pe) based on an intake air flow rate (Ms), and then determine an air charge amount (Mc) from the estimated intake air pressure (Pe). A correction exec... | 12/19/2006 |
| 7150275 | Method for the torque-oriented control of an internal combustion engine A method for the torque-oriented control of an internal combustion engine in which a set torque is computed from an input variable that represents the desired power, and the set torque is limited to an air mass-dependent maximum torque. ... | 12/19/2006 |
| 7128065 | Method and device for controlling an internal combustion engine A method and a device are described for controlling an internal combustion engine. On the basis of the comparison of a setpoint value with an actual value for a variable that characterizes the supplied oxygen quantity, an actuating variable is predefined for control... | 10/31/2006 |
| 7121255 | Strategy for fueling a diesel engine by selective use of fueling maps to provide HCCI+RVT, HCCI+IVC, HCCI+IVC+EVC, and CD+RVT combustion modes A compression ignition engine (60) has a control system (66) for processing data, one or more combustion chambers (62), and fuel injectors (64) for injecting fuel into the chambers. The control system controls fueling by processing engine... | 10/17/2006 |
| 7123758 | Method and system for monitoring breathing activity of a subject A method and system for monitoring breathing movement of a subject is disclosed. A method and system for detecting and predictably estimating regular cycles of breathing movements is disclosed. Another disclosed aspect of the invention is directed to detect and repo... | 10/17/2006 |
| 7117099 | Wide band lambda probe having improved starting behaviour In a method and a control device for operating a broadband lambda sensor, the oxygen concentration of an exhaust gas is determined based on a comparison of a Nernst voltage with a reference voltage having a nominal value; a pump current is injected into a cavity of ... | 10/03/2006 |
| 7089922 | Apparatus, system, and method for minimizing NOin exhaust gasses An apparatus, system, and method are disclosed for minimizing NOx in exhaust gasses. The apparatus includes an ionization module configured to at least partially ionize an exhaust gas of an engine. A characterization module is configured to identify NO | 08/15/2006 |
| 7082935 | Apparatus and methods for closed loop fuel control A method of controlling fuel input to an engine of a vehicle. A feedback signal is received from a sensor that senses engine exhaust. A dither signal having the same frequency as the feedback signal is applied to a fuel control signal controlling fuel to the engine.... | 08/01/2006 |
| 7073494 | System and method for estimating fuel vapor with cylinder deactivation Various systems and methods are disclosed for carrying out combustion in a fuel-cut operation in some or all of the engine cylinders of a vehicle. Further, various subsystems are considered, such as fuel vapor purging, air-fuel ratio control, engine torque control, ... | 07/11/2006 |
| 7063076 | Method of smoke limiting engine Method of smoke limiting an engine. The method may include determining a minimum air/fuel (AFR) ratio and fuel limiting as a function thereof. The method may include determining a maximum fueling rate as a function of the minimum AFR and air mass flow to the engine.... | 06/20/2006 |
| 7056165 | Control system for outboard motor The control system establishes an engine warm-up protocol based, at least in part, on elapsed time from engine start. The control system provides a reduced reliance on engine temperature as a basis for determining an appropriate engine idle speed. The control system... | 06/06/2006 |
| 7047932 | Method to improve fuel economy in lean burn engines with variable-displacement-like characteristics A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air/fuel mixture and a second group of cylinders pu... | 05/23/2006 |
| 7028678 | Internal combustion engine In an internal combustion engine having a plurality of cylinders, some of which can be deactivated during operation of the engine, the cylinders which can be deactivated during operation are configured specifically for high load engine operation and have a lower com... | 04/18/2006 |
| 7004147 | Fuel injection control method for liquefied petroleum gas injection engine and apparatus thereof Fuel injection control methods and systems and related apparatus for Liquefied Petroleum gas Injection (LPI) engine are provided. Preferred methods and systems determine the increased amount of engine revolution per unit time and fuel temperature during an initial e... | 02/28/2006 |
| 7000588 | Engine method A method for controlling an engine having both an electronically controlled inlet device, such as an electronic throttle unite, and an electronically controlled outlet device, such as a variable cam timing system is disclosed. The method of the present invention ach... | 02/21/2006 |
| 6978774 | Emission control valve for gas-fueled engines An emission control device for use with stationary or mobile gas-fueled internal combustion engines is described, which is placed in the fuel supply line and operates with full fuel authority. An oxygen sensor measures exhaust oxygen content. The valve internally ho... | 12/27/2005 |
| 6973926 | Air-fuel ratio control apparatus for internal combustion engine and method thereof In a low rotation speed and low load operation region of an internal combustion engine, the heating of an air-fuel ratio sensor by a heater is stopped, and also an air-fuel ratio feedback control is stopped, and just after the heating of the air-fuel ratio sensor by... | 12/13/2005 |
| 6971258 | Particulate matter sensor A sensor for detecting particulate matter in an exhaust stream of an engine. The sensor may be a spark-plug-like device having an extended center electrode composed of a stainless steel or other material. The electrode may have a thin passivating layer formed on it.... | 12/06/2005 |
| 6899093 | Control system for NOx control for cam phaser and/or EGR systems A vehicle control system regulates oxides of nitrogen levels in vehicle emissions. Recirculation of exhaust gas in an engine is controlled with an exhaust gas regulator valve and/or a cam phaser. An oxides of nitrogen sensor determines the level of oxides of nitroge... | 05/31/2005 |
| 6857421 | Method for operating a diesel engine, and diesel engine In a method for operating a diesel engine and a diesel engine, wherein engine emission control is provided by switching between a lean mode with superstoichiometric combustion air ratio λ>1 and a rich mode with substoichiometric combustion air ratio λ | 02/22/2005 |
