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| Number | Title | Issue Date |
| 7461644 | Method for controlling an internal combustion engine A method for controlling a dethrottled internal combustion engine, which has a shared fresh gas line which supplies fresh gas to fresh gas pipes, which in turn supply fresh gas to each cylinder. The engine has at least one intake valve per cylinder, a clocked valve ... | 12/09/2008 |
| 7404392 | Method and device for controlling an internal combustion engine The invention relates to an internal combustion engine which is provided with a manifold from which an intake tube extends to an intake of a cylinder of the internal combustion engine, with a gas inlet valve, disposed at the intake of the cylinder, an intermittent c... | 07/29/2008 |
| 7401605 | Fuel injection control system for engine A fuel injection control system makes it possible to obtain an output of a lean combustion type engine through an easy operation, even in a throttle opening region of greater than a lean limit. A throttle valve is configured to be turnable up to an over-fully opened... | 07/22/2008 |
| 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 |
| 7355292 | Power generation control apparatus for internal combustion engine An increment of a fuel consumption rate caused by power generation is determined from a difference in fuel consumption rate between a case of performing power generation of an alternator and a case of stopping the power generation. The increment of the fuel consumpt... | 04/08/2008 |
| 7305295 | Throttle limiting for an internal combustion engine A throttle limit control for an internal combustion engine throttle control is disclosed. Rate limiting is applied to prevent excessive rates of change in throttle actuation. Throttle pedal authority is continually maintained and throttle headroom is not compromised... | 12/04/2007 |
| 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 |
| 7198030 | Internal combustion engine An internal combustion engine is operated with a predetermined fixed A/F ratio in an operating range where the amount of intake air is not larger than a predetermined value but, in an operating range where the amount of intake air is larger than the predetermined va... | 04/03/2007 |
| 7178326 | Exhaust gas purifying apparatus An ECU controls an opening degree of an EGR gas switch valve based on a temperature of intake air and a load state of an engine in such a manner that a temperature of exhaust gas becomes a suitable temperature, which is suitable for regeneration of a particulate fil... | 02/20/2007 |
| 7170731 | Circuit arrangement for operating a linear exhaust gas probe A circuit arrangement for operating a sensor comprises a control circuit for electrically supplying the sensor via a plurality of connecting lines and/or at least to detect one electrical output signal of the sensor in which case one of the connecting lines is route... | 01/30/2007 |
| 7146268 | Method and device for operating an internal combustion engine having exhaust-gas recirculation A method and a device for operating an internal combustion engine having exhaust-gas recirculation are provided, which make it possible to dispense with an ambient-pressure sensor. In this context, an intake-manifold pressure and an ambient pressure are modeled. The... | 12/05/2006 |
| 7127345 | Diesel engine control A diesel engine (10) wherein both the operating speed of the engine (RPM) and the timing of the fuel injection into the engine (AA) are cooperatively controlled to be responsive to both the temperature and the pressure of the air (30) used for combusti... | 10/24/2006 |
| 7124014 | Electronic throttle control device of internal-combustion engine An electronic throttle control device of an internal-combustion engine includes an electronic control unit (ECU) having a judgment function portion that judges whether an engine control system and an engine driving condition are normal, and plural kinds of pre-set c... | 10/17/2006 |
| 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 system is configured to estimate an estimated EGR rate value Regr usi... | 09/19/2006 |
| 7100572 | Fuel injection system and fuel injecting method for internal combustion engine A fuel injection system and method for injecting fuel for an internal combustion engine having fuel injection valves arranged on the upstream side and downstream side from the throttle valve respectively which consistently supplies an adequate quantity of fuel into ... | 09/05/2006 |
| 7051709 | Control device for internal combustion engine A target value of an engine load ratio is calculated. A target throttle opening required for making the actual engine load ratio equal to the target engine load ratio is calculated on the basis of an intake pipe pressure which is a pressure in the intake passage dow... | 05/30/2006 |
| 7051726 | Control device for internal combustion engine A target value of an engine load ratio is calculated. A target throttle opening required for making the actual engine load ratio equal to the target engine load ratio is calculated on the basis of an intake pipe pressure which is a pressure in the intake passage dow... | 05/30/2006 |
| 7007685 | Air-fuel ratio control device of internal combustion engine An air-fuel ratio control apparatus for controlling an air-fuel ratio of a supplied air-fuel mixture of an internal combustion engine to a target air-fuel ratio by a feedback control in accordance with an output signal of an oxygen concentration sensor provided at a... | 03/07/2006 |
| 7004144 | Dynamical torque control system A method of dynamically controlling torque output of a torque producing device includes determining a shaped torque command based on a torque command generated by an input device and calculating an actuator variable based on the shaped torque command and a gain. An ... | 02/28/2006 |
| 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 an air-mass flow sensor and represents a measure of the inflowing air ... | 12/20/2005 |
| 6976471 | Torque control system A method of controlling torque output of an engine includes calculating a desired air-per-cylinder (APC) based on a torque command and determining an effective throttle area corresponding to the desired APC based on a non-dimensionalized model. A throttle is regulat... | 12/20/2005 |
| 6941746 | Mobile diesel selective catalytic reduction systems and methods The present invention provides for the retrofitting diesel truck engines with a system to reduce NOx emissions. The SCR system of the present invention, including a controller, a reagent tank, and an injection system, is installed on a vehicle. A NOx detector is tem... | 09/13/2005 |
| 6928988 | Control system for engine An electronically controlled engine management system for a multi-cylinder engine unnoticeably disables and enables various cylinder groups to preserve fuel economy. The engine management system enables the operator to enjoy high torque represented from a multi-cyli... | 08/16/2005 |
| 6919047 | Reduction of nitrogen oxides in diesel exhaust gases and fuel injection system A method for reducing NOx in lean exhaust gases to N2 includes injecting a fuel into the exhaust gases and passing the exhaust gases and fuel mixture through a catalyst to reduce the NOx to N2. The catalyst may be (a) a pe... | 07/19/2005 |
| 6868327 | Device for estimating an amount of intake air of an internal combustion engine A device for estimating the amount of intake air of an internal combustion engine comprising intake pipe pressure calculation means for calculating an intake pipe pressure, at this time, downstream of the throttle valve, and intake air amount calculation means for c... | 03/15/2005 |
| 6827070 | Method and device for controlling an engine A method and a device for controlling an engine, in which a control module calculates a setpoint torque based on an accelerator position and calculates an air mass and a fuel mass from this setpoint torque. In the process, a setpoint value for lambda (ratio of air m... | 12/07/2004 |
| 6820604 | System with an offset learn function and a method of determining a throttle-position sensor offset A fuel injection system in an engine. The system includes a throttle body having a throttle valve, a first sensor, and a control unit coupled to the first sensor. The first sensor measures a sensed throttle valve angle and provides a first output corresponding to th... | 11/23/2004 |
| 6681752 | Fuel injection system method and apparatus using oxygen sensor signal conditioning to modify air/fuel ratio A method and apparatus for externally modifying the operation of a closed loop electronic fuel injection control system that is normally used with a standard oxygen sensor, which method and apparatus includes replacing the standard oxygen sensor with a wi... | 01/27/2004 |
| 6615812 | Method and arrangement for operating an internal combustion engine The invention relates to a method and an arrangement for operating an internal combustion engine wherein at least one control quantity of the engine is influenced in dependence upon a signal representing the fresh air charge. The throttle flap angle and t... | 09/09/2003 |
| 6601573 | Method for detecting failure of a pump assembly in a pump module The invention relates to a method for detecting selection of a pump assembly (25, 32), for instance a fuel pump assembly, in which at least two pump assemblies are provided. By means of a control unit (12), the lambda signal is scanned continuously by mea... | 08/05/2003 |
| 6491033 | Oxygen sensor and feedback system for outboard motor engine An outboard motor engine includes a feedback control system for controlling the air/fuel ratio of the air/fuel mixture combusted within the engine. The control system can be configured to vary the target output value of a combustion condition sensor in ac... | 12/10/2002 |
| 6457467 | Internal combustion engine with air/fuel ratio control One embodiment of the present invention includes sensing speed or an internal combustion engine that includes a manifold coupled to an air pathway and a gaseous fuel line, sensing manifold pressure, and sensing manifold temperature. Air mass flow rate is ... | 10/01/2002 |
| 6378515 | Exhaust gas recirculation apparatus and method An exhaust gas recirculation method and apparatus adapted for use on an internal combustion engine. The apparatus includes an engine operational model, with the engine operational model capable of outputting at least one engine operational characteristic,... | 04/30/2002 |
| 6357430 | Method and system for calculating engine load ratio during rapid throttle changes A method for updating an air flow ratio of a current engine load to a maximum engine load includes calculating an approximate air flow ratio based only on throttle position changes. The approximate air flow ratio is calculated by modifying a normal, conve... | 03/19/2002 |
| 6343596 | Fuel delivery regulator A fuel regulator for two-cycle and/or four-cycle internal combustion engines, particularly those found in model airplanes, comprises a microprocessor, a thermocouple exhaust gas temperature sensor, and a fuel regulating valve installed in a low-pressure f... | 02/05/2002 |
| 6253751 | Method and device for fuel proportioning in a gas-powered combustion engine Fuel proportioning in a gas-powered combustion engine is effected so that when the value of a parameter monitored in the exhaust gases deviates from a set-value, the level of the gas input pressure to a mixer for gas and air is adjusted in a specified ope... | 07/03/2001 |
| 6196188 | System and method for maintaining a constant throttle deadband A system for controlling fueling signals provided to a fueling system of an internal combustion engine operates to eliminate the throttle deadband when the engine speed is limited to speeds less than the maximum engine speed. In one embodiment, the engine... | 03/06/2001 |
| 6148809 | Oxygen sensor controlled continuous flow fuel system A continuous flow fuel system includes an oxygen sensor for analyzing the exhaust gases of an engine. The output from the oxygen sensor, representing the oxygen content in the exhaust gases, is transmitted to an electronic control module, which in turn co... | 11/21/2000 |
| 6041765 | Internal combustion engine with air/fuel ratio control Engine (60) has manifold (62) and includes an air pathway (20) and a fuel line (30) coupled to the manifold (62) for supplying a fuel charge. Fuel line (30) has a controllable valve (40) for regulating fuel flow and a first sensor (38) providing a fuel si... | 03/28/2000 |
| 6016794 | Fuel injection control apparatus for internal combustion engine A fuel injection control apparatus for an internal combustion engine includes an injector control apparatus 120B for controlling a fuel injection amount toward a target fuel injection amount Fm. The injector control apparatus 120B includes an expected eng... | 01/25/2000 |
