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| Number | Title | Issue Date |
| 7418942 | Control apparatus and control method for internal combustion engine A control apparatus retards ignition timing of the engine, and increases an amount of a fuel supplied to the engine based on a retard amount of the ignition timing, by calculating a maximum engine intake air amount at which an exhaust system temperature can be maint... | 09/02/2008 |
| 7367311 | Control system for compression ignition internal combustion engine A compression ignition internal combustion engine includes injectors, each of which injects fuel into a corresponding cylinder. An ECU determines target ignition timing based on engine operational information and adjusts fuel injection start timing and a fuel inject... | 05/06/2008 |
| 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 |
| 7239957 | Method and system for seamless transition between multiple feedback ranges A method and system are provided for processing multiple sensor output signals of different ranges/sensitivities so as to provide a seamless transition when switching between the different ranges. More specifically, a determination is made as to whether a selected s... | 07/03/2007 |
| 7236877 | Chipped engine control unit system having copy protected and selectable multiple control programs The present invention discloses a method for preventing a control program written in a first engine control unit (ECU) from running in a second ECU, comprising obtaining an ID number from the first ECU; encrypting the ID number; writing the encrypted ID number into ... | 06/26/2007 |
| 7191760 | Ignition control method and ignition control device for two-cycle internal combustion engine An ignition control device for a two-cycle internal combustion engine that controls an ignition timing for inhibiting detonation while inhibiting an increase in an exhaust pipe temperature, including: map storing means for storing a map that provides a relationship ... | 03/20/2007 |
| 7184867 | Watercraft network A network for a vehicle correlates network addresses with functions. The network can be used to connect control devices and an outboard motor mounted to a watercraft. Each physical node on the network can include one or plurality of functional nodes. The network can... | 02/27/2007 |
| 7168411 | Closed loop engine control for regulating NOx emissions, using a two-dimensional fuel-air curve An engine control strategy that ensures that NOx emissions from the engine will be maintained at an acceptable level. The control strategy is based on a two-dimensional fuel-air curve, in which air manifold pressure (AMP) is a function of fuel header pressure and en... | 01/30/2007 |
| 7165526 | Direct injection engine and controller for the same A direct injection engine and a controller for the engine, which can realize super-retard combustion under high backpressure and can minimize an emission amount of HC at the startup. A cavity is formed in a piston such that fuel spray injected from a fuel injection ... | 01/23/2007 |
| 7152579 | 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... | 12/26/2006 |
| 7104043 | Closed loop cold start retard spark control using ionization feedback This feature of the present invention comprises a method and apparatus to retard the spark time. As a result, the catalyst heats up quickly during the cold start. The retard spark control method of the present invention uses a closed loop to adjust the engine retard... | 09/12/2006 |
| 7031825 | Exhaust pipe heater A vehicle with a two-stroke engine includes a system for rapidly heating an exhaust pipe. The system may include a heating mode signal generator, a sensor, and a controller. Activation of the signal generator signals the controller, which, in turn, determines whethe... | 04/18/2006 |
| 7021285 | Control device for internal combustion engine A combustion variation value is detected, and a function that uses the detected combustion variation value is added to CVAR(i−1) to obtain CVAR(i); and using the resulting value, an exhaust gas recirculation amount and an ignition timing are obtained. A combustion... | 04/04/2006 |
| 6997763 | Running control device A running control device for a watercraft controls propulsion force and tilt angle of a propulsion device relative to the hull of the watercraft. The running control device also sets an optimum trim angle automatically. The running control device includes a propulsi... | 02/14/2006 |
| 6993960 | Method and apparatus for detecting combustion instability in continuous combustion systems An apparatus and method to sense the onset of combustion stability is presented. An electrode is positioned in a turbine combustion chamber such that the electrode is exposed to gases in the combustion chamber. The electrode may be integrated with an igniter. A cont... | 02/07/2006 |
| 6951203 | Ignition timing control system A method for improving engine performance, by increasing fuel efficiency and/or power output, and/or by decreasing the output of pollutants. When the temperature of the engine's exhaust system is lower than a target temperature, the ignition position of the cylinder... | 10/04/2005 |
| 6937933 | Device and method of controlling a drive unit A method and a device for controlling a drive unit, in particular, of an internal combustion engine in a vehicle, in which at least one performance quantity of the drive unit is detected and at least one actuator of the drive unit is controlled with controlled varia... | 08/30/2005 |
| 6918362 | Engine with variable cam timing and control advantageously using 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... | 07/19/2005 |
| 6901745 | Method for operating a nitrogen oxide (nox) storage catalyst The invention relates to a method for operating a nitrogen oxide (NOx) storage catalytic converter (12′). During a first operating phase of the storage catalytic converter (12′), nitrogen oxides are stored and, during a second operating phase, stor... | 06/07/2005 |
| 6845753 | System and method for controlling ignition timing in an engine A system and method for controlling ignition timing of an engine is provided. The method includes determining a change in a combustion temperature rise within an engine based on a change in at least one engine operating parameter. The method further includes adjusti... | 01/25/2005 |
| 6807941 | Temperature protection method for motor vehicle engine exhaust pipe The temperature protection method for a motor vehicle exhaust pipe comprises steps of determining a minimum ignition angle from several possible values, including a stalling-speed angle, on the basis of predetermined logic and of engine operating parameters. ... | 10/26/2004 |
| 6766786 | Arrangement for regulating a spark-ignition internal combustion engine An arrangement for regulating a spark-ignition internal combustion engine, in particular a stationary boosted gas Otto-cycle engine, comprising a power regulating device acting on at least one power setting member, wherein an ignition time regulating device (8, 9... | 07/27/2004 |
| 6715280 | Method for low emission vehicle starting with improved fuel economy A method for rapidly heating an emission control device in an engine exhaust uses excess air added to the exhaust via an air introduction device. After an engine cold start, the engine is operated to raise exhaust manifold temperature to a first predetermined value ... | 04/06/2004 |
| 6684851 | Method for determining a functioning parameter of an engine A process for determining an operating parameter of an internal combustion engine as a function of three control parameters (N, P, λ) of this motor, comprises: a) establishing a first map of the operating parameter as a function of two control parame... | 02/03/2004 |
| 6668547 | Method and apparatus for protecting the catalytic converter of an internal combustion engine from overheating A method and an apparatus for protecting the catalytic converter in the exhaust system of an internal combustion engine from overheating in the case of retarded ignition angles, in which a characteristic map (10) provides an engine-speed- and/or load-depe... | 12/30/2003 |
| 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 controlling an engine control set point as a function of the sensed ... | 06/24/2003 |
| 6550450 | Two-cycle engine with exhaust temperature-controlled ignition timing A two-cycle internal combustion engine has an ignition timing that varies with engine speed. A plurality of ignition patterns (the relationship between ignition timing and engine speed) are used. The engine exhaust gas temperature is sensed and is used to... | 04/22/2003 |
| 6536411 | Method of operating an internal combustion engine In a method for operating an internal combustion engine, as a function of a desired load, wherein a desired pressure in the intake pipe of the internal combustion engine is determined and set by means of an air supply device, the ignition timing, the begi... | 03/25/2003 |
| 6532935 | Method of operating an internal combustion engine In a method of operating an internal combustion engine which has at least two cylinder banks that can be controlled separately as a function of a desired load, wherein a desired pressure in the intake pipe of the internal combustion engine is determined a... | 03/18/2003 |
| 6481416 | Method for correction of the spark advance for an internal combustion engine with a continuous phase transformer at the intake and/or exhaust Method for correction of the spark advance for an internal combustion engine with a continuous phase transformer at the intake and/or exhaust; for each cylinder, the method consists of calculating a theoretical value of the optimum spark advance according... | 11/19/2002 |
| 6412472 | Method for correcting ignition advance of an internal combustion The present invention is a method of ignition advance correction of an internal-combustion engine according to the composition variation of the natural gas contained in a tank and supplying the engine. A methane number relative to the natural gas filling ... | 07/02/2002 |
| 6371082 | Two-cycle engine with exhaust temperature-controlled ignition timing A two-cycle internal combustion engine has an ignition timing that varies with engine speed. A plurality of ignition patterns (the relationship between ignition timing and engine speed) are used. The engine exhaust gas temperature is sensed and is used to... | 04/16/2002 |
| 6345500 | Cylinder direct injection spark-ignition internal combustion engine In a cylinder injection spark-ignition engine having a spark plug to ignite an air mixture fuel within a corresponding cylinder; a fuel injector to inject fuel into a combustion chamber; a catalytic converter interposed in an exhaust passage; and a contro... | 02/12/2002 |
| 6325046 | Engine control system An internal combustion engine includes an improved feedback control system and method for operating the engine to provide the desired air/fuel ratio under all running conditions without causing unsettling variations in engine speed and torque as adjustmen... | 12/04/2001 |
| 6237566 | Two-cycle engine with exhaust temperature-controlled ignition timing A two-cycle internal combustion engine has an ignition timing that varies with engine speed. A plurality of ignition patterns (the relationship between ignition timing and engine speed) are used. The engine exhaust gas temperature is sensed and is used to... | 05/29/2001 |
| 6213913 | Ignition timing control apparatus for an internal combustion engine An ignition timing control method and apparatus for an internal combustion engine mounted on a motor vehicle can prevent the occurrence of the knocking in the internal combustion engine. When the engine is running within a specific speed range and the tra... | 04/10/2001 |
| 6196054 | Combustion state detecting device for an internal combustion engine To obtain a combustion state detecting device in which a detection range is optimized to thereby make it possible to improve the S/N ratio, thereby making it possible to enhance the accuracy in detection of the combustion state of the internal combustion ... | 03/06/2001 |
| 6178373 | Engine control method using real-time engine system model An engine control method for an internal combustion engine having a powertrain control module (PCM). The powertrain control module includes a microprocessor and associated memory. A mathematical model of the engine cycle of the engine system is stored in ... | 01/23/2001 |
| 5887570 | Ignition timing control system for internal combustion engines There is provided an ignition timing control system for an internal combustion engine. An air-fuel ratio sensor is arranged in the exhaust system, for detecting the air-fuel ratio of exhaust gases emitted from a plurality of cylinders of the engine. The a... | 03/30/1999 |
| 5867983 | Control system for internal combustion engine with enhancement of purification performance of catalytic converter A control system for an internal combustion engine capable of improving purification performance of a catalytic converter provides an oscillation amplitude for an air/fuel ratio of an air/fuel mixture to be supplied to an internal combustion engine. The a... | 02/09/1999 |
