Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 8136513 | Internal combustion engine The invention relates to a method for operating an internal combustion engine, wherein air is inducted and then compressed. Before introduction into a combustion chamber of the internal combustion engine, the air humidity of the inducted air is determined and temper... | 03/20/2012 |
| 7997257 | Method and a device for operating a internal combustion engine For operating a internal combustion engine a first characteristic value is determined depending on a distance integral of at least a portion of a control signal of an oxygen sensor control based on control reference signal characteristics across a given time period.... | 08/16/2011 |
| 7975679 | Other-type fuel contamination determination apparatus for internal combustion engine A other-type fuel contamination determination apparatus for an internal combustion engine includes an exhaust gas sensor. The exhaust gas sensor is configured for obtaining one of (a) an air-fuel ratio and (b) a combustion state for the internal combustion engine ba... | 07/12/2011 |
| 7900614 | Self-calibrating NOsensor A system for calibrating a response to an exhaust-stream NOx level in a motor vehicle is provided. The system comprises a NOx sensor that includes an electrode, a current from the electrode responsive to the exhaust-stream NOx level ... | 03/08/2011 |
| 7900615 | Air-fuel imbalance detection based on zero-phase filtering A control system comprising an oxygen sensor that generates an oxygen signal based on an oxygen concentration level in an exhaust gas of an engine, a filtering module that determines a filtered signal based on the oxygen signal, and an air-fuel imbalance detection m... | 03/08/2011 |
| 7849844 | Diagnostic method and device for operating an internal combustion engine An internal combustion engine has an exhaust gas catalyst, a first exhaust gas sensor that is arranged for use in lambda control, and a second sensor that is arranged for trim control. The measuring signal of the second sensor is used to determine a NOx quality valu... | 12/14/2010 |
| 7770566 | Method for controlling an internal combustion engine A method for controlling an internal combustion engine that is to be operated either by petrol or alcohol or by a variable proportion of the two fuels and that includes an electronic control unit that can drive the engine, an admission line, and an exhaust line that... | 08/10/2010 |
| 7743759 | Gas sensor controller An ECU controls an A/F sensor that is provided in an exhaust system of an internal combustion engine and produces current outputs corresponding to the concentration of oxygen in exhaust gas by being supplied with voltage and produces voltage outputs corresponding to... | 06/29/2010 |
| 7707999 | Exhaust protecting device and protecting method for internal combustion engine Fuel efficient devices and methods for protecting an exhaust system, and components thereof, when the exhaust gas temperature increases excessively are provided. The exhaust gas temperature is estimated in response to an internal resistance of an Air/Fuel ratio sens... | 05/04/2010 |
| 7607422 | Methods of flexible fuel engine conversions Methods and apparatus are disclosed for converting and optimizing the fuel system of an internal combustion engine in a pre-existing (used) vehicle to be fuel flexible and thus to operate on a mixture of fuels (like ethanol and gasoline) from a single fuel tank. The... | 10/27/2009 |
| 7581535 | Method of estimating the fuel/air ratio in a cylinder of an internal-combustion engine by means of an extended Kalman filter The present invention relates to a method of estimating the fuel/air ratio in each cylinder of an injection internal-combustion engine comprising an exhaust circuit on which a detector measures the fuel/air ratio of the exhaust gas. An estimator based on a Kalman fi... | 09/01/2009 |
| 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 on an output from an air-fuel ratio sensor disposed on an upstream sid... | 05/19/2009 |
| 7484504 | Air-fuel ratio control system and method for internal combustion engine An air-fuel ratio control system includes: a catalyst; an oxygen concentration sensor; an integral value calculation portion that calculates an integral value of a deviation updated by integrating the deviation between an output value from the oxygen concentration s... | 02/03/2009 |
| 7475683 | Fuel injection control device for a variable-fuel engine and engine incorporating same A fuel injection control apparatus, for a variable-fuel engine, includes a plurality of stored maps for determining a basic fuel injection time corresponding to a state of an engine and alcohol concentration in the fuel. The apparatus includes a memory storage regio... | 01/13/2009 |
| 7404397 | Method and apparatus for modifying fuel injection scheme A fuel injector control modification module is configured to modify primary fuel injector control signals provided by an engine control unit of an internal combustion engine. The module is particularly adapted to modifying fuel injector control signals based upon de... | 07/29/2008 |
| 7389773 | Emissions sensors for fuel control in engines A system for controlling fuel to an engine to minimize emissions in an exhaust of the engine. There may be a controller connected to an actuator, for example a fuel control actuator, of the engine and to emissions sensors, such as an NOx and/or PM sensor, proximate ... | 06/24/2008 |
| 7387091 | Process for use with dual-fuel systems A system and method is provided to reduce the occurrence of engine knock for engines that utilize a dual-fuel fumigation system. Typically, dual fuel systems inject a gaseous-fuel flow into the air intake stream of a diesel engine. This results in more complete comb... | 06/17/2008 |
| 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 |
| 7380546 | Vapor fueled engine A fuel supply assembly is provided that may allow for use of vaporized fuel to power an engine and enhance fuel efficiency. The fuel supply assembly may include a vaporizing tank, a heating source, a temperature control and a monitoring and control system configured... | 06/03/2008 |
| 7377273 | Air-fuel ratio control apparatus for internal combustion engine A common fuel injection amount is calculated for the cylinders of a first cylinder group, which performs a rich burn process, and the cylinders of a second cylinder group, which performs a lean burn process. The calculated fuel injection amount is corrected with an ... | 05/27/2008 |
| 7373238 | Control system of internal combustion engine A cylinder air filling amount is divided into a first amount of air and a second amount of air, the first amount of air and the second amount of air are calculated, and the first amount of air and the second amount of air are totaled to calculate a cylinder air fill... | 05/13/2008 |
| 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 |
| 7367330 | Internal combustion engine controller The internal combustion engine controller includes an oxygen concentration sensor outputting an electric signal having a value depending on an oxygen concentration in an exhaust gas flowing through an exhaust passage of an internal combustion engine, and a control u... | 05/06/2008 |
| 7359789 | Control system for an internal combustion engine and a vehicle having the same The invention provides a control system for an internal combustion engine of a vehicle. The control system includes a sensor controller and an engine controller. The sensor controller includes a first interface configured to be connected to a sensor coupled to the e... | 04/15/2008 |
| 7353804 | Method and arrangement for achieving an adjusted engine setting utilizing engine output and/or fuel consumption A method and associated arrangement for achieving an adjusted engine setting utilizing engine output and/or fuel consumption. An engine that consumes fuel is run. Fuel consumption and/or engine operation output is determined. A value is determined utilizing the dete... | 04/08/2008 |
| 7337772 | Apparatus for and method of controlling temperature of exhaust gas sensor, and recording medium storing program for controlling temperature of exhaust gas sensor The temperature of an exhaust gas flowing through an exhaust passage 3 is estimated or detected, and the temperature of an active element of an exhaust gas sensor 8. (O2 sensor) is controlled at a predetermined target temperature by a heater... | 03/04/2008 |
| 7331315 | Two-stroke engine with fuel injection A two-stroke internal combustion engine is provided with a fuel injector. The two-stroke internal combustion engine may have at least one transfer passage, an air channel, and a fuel injector. The transfer passage is between a crankcase and a combustion chamber of t... | 02/19/2008 |
| 7328673 | Valve timing correction control apparatus and method for an internal combustion engine A valve timing correction control apparatus for an internal combustion engine is provided. The engine includes a plurality of banks and variable valve operating mechanisms disposed at the respective banks for variably controlling valve timings of intake valves separ... | 02/12/2008 |
| 7320309 | Method and device for controlling an internal combustion engine A method and device for controlling an internal combustion engine are provided. A first quantity characterizing the actually injected fuel amount and a second quantity characterizing the desired amount of fuel to be injected are determined on the basis of performanc... | 01/22/2008 |
| 7314044 | Marine emissions control A marine engine has an exhaust system including a catalyst cooled by a flow of coolant, a coolant injector that injects coolant into the flow of exhaust at a point downstream of the catalyst, and a sensor arranged to sense a characteristic of the flow of exhaust, su... | 01/01/2008 |
| 7302941 | Air-fuel ratio control apparatus for internal combustion engine An air-fuel ratio control apparatus for an internal combustion engine according to the invention includes a control unit that makes a correction to the fuel injection amount using the air-fuel ratio learned value when calculating the fuel injection amount, and that ... | 12/04/2007 |
| 7296562 | Control system and method for estimating turbocharger performance A control system for estimating the performance of a compressor is disclosed. The control system has a compressor fluidly connected to an inlet manifold of a power source. The control system also has a power source speed sensor to provide an indication of a rotation... | 11/20/2007 |
| 7281380 | Heat exchange device A heat exchange system is provided that includes an evaporator (11) that carries out heat exchange between exhaust gas discharged from an exhaust port (16B) and water, exhaust gas passages (87, 88) on the upstream side in the direction of flow o... | 10/16/2007 |
| 7278394 | Air-fuel-ratio control apparatus for internal combustion engine The air-fuel-ratio control apparatus for an internal combustion engine obtains an upstream-side feedback correction value DFi for feedback-controlling an air-fuel ratio on the basis of a value (Fcrlow(k−N)) that is obtained by performing a low-pass filter process ... | 10/09/2007 |
| 7269993 | Gas detecting apparatus, gas detecting method and fuel cell vehicle The gas detecting system of the present invention is equipped with a catalytic combustion type gas sensor 1a and a semiconductor type gas sensor 1b, in a gas detecting system 1 having an operating sate in which generation of electr... | 09/18/2007 |
| 7270118 | Control apparatus of engine In an engine having a premixed combustion mode, an EGR flow rate estimating precision is deteriorated at a transient time, and a torque fluctuation and an exhaust gas deterioration are caused. In an engine control apparatus having a premixed combustion mode and a di... | 09/18/2007 |
| 7264230 | Carburetor and solenoid assemblies and methods of assembling the same An engine carburetor and a solenoid valve assembly therefor and methods of assembling the same. The carburetor has a body with a fuel and air mixing passage communicating with an air bleed passage. A cavity extends into the body for communication with the air bleed ... | 09/04/2007 |
| 7263985 | Exhaust emission control device in internal combustion engine and heat engine Catalyst is supported at least on a part of the combustion chamber wall of an internal combustion engine. A control is provided for controlling the fuel injection equipment of the engine so that pilot fuel injection is performed prior to main fuel injection under pr... | 09/04/2007 |
| 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 |
| 7243532 | Misfire detector for internal combustion engines Air fuel ratios of exhaust gases of respective cylinders are estimated based on a detection value of an air fuel ratio sensor mounted in an exhaust-collector. Normal combustion and misfire are determined depending upon whether individual cylinder air fuel ratios of ... | 07/17/2007 |
