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US20150057910 METHODS AND SYSTEMS FOR INDICATING WATER AT AN OXYGEN SENSOR BASED ON SENSOR HEATER POWER CONSUMPTION  
Methods and systems are provided for indicating water at an oxygen sensor based on power consumption of a heating element of the oxygen sensor. In one example, water may be indicated at an oxygen...
US20130035842 Fueling Systems, Methods And Apparatus For An Internal Combustion Engine  
The present disclosure provides a method to operate an internal combustion engine comprising storing a fueling command map having fueling index values, each of the fueling index values defining...
US20140090363 HEATER CONTROL DEVICE OF OXYGEN CONCENTRATION SENSOR  
A heater control device of an oxygen concentration sensor is provided in which even in a case where an internal combustion engine is automatically stopped by idle stop control after cold start-up,...
US20110077844 DELAY CALIBRATION SYSTEMS AND METHODS  
A calibration method comprises: determining a steady-state (SS) delay period from a first mapping of SS delay period indexed by air per cylinder (APC); determining a predicted delay period based...
US20110073087 DELAY COMPENSATION SYSTEMS AND METHODS  
A steady-state (SS) delay module determines a SS delay period for SS operating conditions based on an air per cylinder. A dynamic compensation module determines a predicted delay period based on...
US20110073086 METHOD TO ADAPT THE O2 SIGNAL OF AN O2 SENSOR DURING OVERRUN  
A system for compensating for changes in behavior of an oxygen sensor. In one embodiment, the system includes an oxygen sensor configured to produce an output indicative of an oxygen level in an...
US20100318281 FUEL CONTROL STRATEGY FOR HEATING A CATALYST  
A control system for an engine having N cylinders in first and second banks includes a catalyst heat module and a fuel control module. N is an integer greater than two. The catalyst heat module...
US20100100305 Fuel/air mixture control device and method  
In an automobile fuel control system having an EGO sensor which sends voltage to an ECM in order to adjust fuel/air ratio, the EGO sensor being disabled and replaced with a substitute signal...
US20100070159 AIR TO FUEL RATIO CONTROL DEVICE  
An air-fuel ratio control device of an internal combustion engine is provided. The control device includes a learning section, a correction section, and an inhibiting section. When an execution...
US20110054763 Intake Manifold Oxygen Control  
A method for controlling intake manifold oxygen for an engine having a fresh air inlet and an exhaust gas recirculation (EGR) circuit includes the steps of: establishing an ideal excess oxygen...
US20110184632 ADAPTIVE INTAKE OXYGEN ESTIMATION IN A DIESEL ENGINE  
A method for estimating an oxygen concentration in an intake manifold of a diesel engine utilizing exhaust gas recirculation includes monitoring engine operation, monitoring an exhaust gas...
US20090254264 PROCEDURE AND DEVICE FOR AN ADAPTATION OF A DYNAMIC MODEL OF AN EXHAUST GAS PROBE  
The invention concerns a procedure and a device for an adaptation of a dynamic model of an exhaust gas probe, which is a component of an exhaust pipe of a combustion engine and with which a lambda...
US20090118988 TORQUE CONVERTER CLUTCH CONTROL SYSTEM AND POST OXYGEN SENSOR PERFORMANCE DIAGNOSTIC SYSTEM  
A system comprises a post oxygen performance diagnostic (POPD) module that performs a POPD of a post oxygen sensor, wherein the POPD includes a deceleration fuel cutoff (DFCO) portion. A torque...
US20110208409 FUEL BLEND SENSING SYSTEM  
While the materials compatibility challenges have largely been met in “flex-fuel” vehicles, the engine and aftertreatment operation has not been optimized as function of fuel type (i.e. ethanol,...
US20090112447 INTAKE AIR QUANTITY CORRECTING DEVICE  
An intake air quantity correcting device calculates an intake air quantity as a sensing target of an airflow meter (an intake air quantity sensor) based on an injection quantity sensing value...
US20100115924 METHOD OF CONTROLLING NOx PURIFICATION SYSTEM AND NOx PURIFICATION SYSTEM  
In a NOx purification system 1 provided with a NOx occlusion reduction catalyst 20 and a control unit 30 which executes a NOx regeneration control and a sulfur poisoning regeneration control, a...
US20090187301 Detection of Engine Intake Manifold Air-Leaks  
A method of determining an engine intake air leak may include measuring an air flow rate into an internal combustion engine, comparing the measured air flow rate to a first predetermined air flow...
US20120253644 METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE  
A method for operating an internal combustion engine, in which at least one unwanted exhaust component is reduced, wherein a comparison value of an air ratio is determined and compared with an...
US20090143960 CONTROL DEVICE OF OXYGEN SENSOR FOR AUTOMOTIVE VEHICLE, AND AIR-FUEL RATIO CONTROLLER AND AUTOMOTIVE VEHICLE INCORPORATING THE SAME  
A control device is arranged to control an oxygen sensor for an automotive vehicle wherein the oxygen sensor has a sensor element and a heater for elevating a temperature of the sensor element....
US20100114453 SYSTEM AND METHOD FOR DETERMINING OXYGEN SENSOR HEATER RESISTANCE  
An engine control module includes an exhaust heating module, a temperature determination module, and a resistance measuring module. The exhaust heating module operates an engine at a predetermined...
US20110054764 Exhaust gas oxygen sensor diagnostic method and apparatus  
An internal combustion engine includes an exhaust system, an oxygen sensor in the exhaust system and a sensor malfunction monitor. In order to maintain operation during a fuel cut-off situation,...
US20090150057 OXYGEN SENSOR HEATER CONTROL STRATEGY  
A heating module for an oxygen sensor comprises an estimated mass module, a cumulative mass module, and a temperature control module. The estimated mass module determines an estimated mass of...
US20090178389 Method and Apparatus for Controlling a Fuel-Fired Burner of an Emission Abatement Assembly  
A method of operating a fuel-fired burner of an emission abatement assembly includes advancing exhaust gas from an internal combustion engine to the fuel-fired burner. The method further includes...
US20090048766 AIR FUEL RATIO CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINES  
A fuel control system of an engine system comprises a pre-catalyst exhaust gas oxygen (EGO) sensor and a control module. The pre-catalyst EGO sensor determines a pre-catalyst EGO signal based on...
US20090229588 METHOD FOR DETERMINING THE COMPOSITION OF A FUEL BLEND  
The invention relates to a method for the open-loop control of an internal combustion engine, which is operated with a fuel blend of an initial and at least one second fuel, the internal...
US20100241340 CALIBRATION SCHEME FOR AN EXHAUST GAS SENSOR  
Various systems and methods are described for controlling an engine in a vehicle in response to an equilibrium value of an exhaust gas constituent generated from an exhaust gas sensor. One example...
US20110106411 SYSTEMS AND METHODS FOR DIAGNOSING OXYGEN SENSORS AND CATALYTIC CONVERTERS OF EXHAUST SYSTEMS  
A diagnostic system for an engine includes a stage transition module and a control module. The stage transition module generates a command signal based on a fuel control signal. The command signal...
US20090312938 GAS SENSOR, OXYGEN SENSOR AND AIR-FUEL RATIO CONTROL SYSTEM  
The invention provides an air-fuel ratio control system in which high precision can be applied to the air-fuel ratio feedback control of an engine by using a gas sensor mainly configured by an...
US20110213547 Method for Adjusting Engine Air-Fuel Ratio  
A method for adjusting an air-fuel ratio of an engine is disclosed. In one example, the engine air-fuel ratio is adjusted in response to a duty cycle and frequency of a post catalyst oxygen...
US20130080035 DETERIORATION SIGNAL GENERATION DEVICE FOR OXYGEN SENSOR  
A deterioration signal generation device for an oxygen sensor having a power supply different than a power supply connected to an external device, including a connection unit for electrically...
US20110132285 METHOD FOR OPERATING AN ENGINE  
A method for operating an engine with a fuel reformer is presented. In one embodiment a first fuel is reformed into a gaseous fuel comprising H, CO, and CH4 or the fuel may change state to...
US20090259390 Degradation determination apparatus and degradation determination system for oxygen concentration sensor  
There is provided a dither control means that performs a dither control, which compulsively changes an air-fuel ratio alternately to rich side and to lean side by increasing and decreasing fuel...
US20080154481 Adaptive oxygen sensor methods, systems, and software  
One embodiment is a system operable to control entry of an oxygen sensor into a learning mode. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become...
US20090112446 Oxygen sensor monitoring  
To avoid potentially erroneous results, monitoring the operation of an oxygen sensor of an internal combustion engine of a motor vehicle to detect a slow response of the oxygen sensor as...
US20110077845 FUEL CONTROL SYSTEM AND METHOD FOR IMPROVED RESPONSE TO FEEDBACK FROM AN EXHAUST SYSTEM  
An engine control system includes a proportional correction module and a variable proportional gain determination module. The proportional correction module generates a proportional correction for...
US20070079596 Apparatus and method for controlling air/fuel ratio of internal combustion engine  
An apparatus for controlling air-fuel ratio of an internal combustion engine having: a three-way catalytic converter; an oxygen sensor, which is installed at the upstream side of said catalytic...
US20070084192 Air-fuel ratio control apparatus of internal combustion engine and control method thereof  
An air-fuel ratio control apparatus and control method thereof performs air-fuel ratio feedback control based on an estimated value (i.e., an upstream side estimated air-fuel ratio) of an air-fuel...
US20100242933 POST OXYGEN SENSOR PERFORMANCE DIAGNOSTIC WITH MINIMUM AIR FLOW  
An engine control system includes an oxygen (O2) sensor diagnostic module that diagnoses an O2 sensor and requests a minimum air per cylinder (APC). A throttle actuator module controls a throttle...
US20140180561 METHOD FOR CONTROLLING FUEL INJECTION FOR A DUAL FUEL ENGINE  
A fuel injection system including injectors for two different fuels is disclosed. In one example, fuel injection is adjusted to compensate for changes in engine intake air amount. Combustion...
US20110288751 METHOD FOR CONTROLLING FUEL INJECTION FOR A DUAL FUEL ENGINE  
A fuel injection system including injectors for two different fuels is disclosed. In one example, fuel injection is adjusted to compensate for changes in engine intake air amount. Combustion...
US20090030592 Catalyst Deterioration Detecting Apparatus of Vehicle Internal Combustion Engine  
A determining section integrates amount of oxygen that is stored in or released from a exhaust gas purifying catalyst from when a signal from an oxygen sensor is changed until when the signal is...
US20110082635 COMPENSATING FOR RANDOM CATALYST BEHAVIOR  
A method for calibrating an engine control module includes sampling a first signal from a first oxygen sensor located upstream from a catalyst. The first signal indicates an oxygen content of...
US20100049425 FUEL SUPPLY DEVICE FOR FLEXIBLE-FUEL INTERNAL COMBUSTION ENGINE  
When it is detected in a fuel supply device for a flexible-fuel internal combustion engine that a refueling operation has been performed for a fuel tank, a return suppression process in which fuel...
US20100077729 CATALYST DEGRADATION DETERMINATION DEVICE FOR INTERNAL COMBUSTION ENGINE  
A catalyst deterioration determination device for determining deterioration of an exhaust gas purging catalyst arranged in an exhaust passage of an internal combustion engine is disclosed. The...
US20130030672 SYSTEMS AND METHODS FOR CONTROLLING EXHAUST GAS RECIRCULATION COMPOSITION  
Various systems and method for controlling exhaust gas recirculation in an internal combustion engine are provided. In one embodiment, a method for controlling an engine includes determining an...
US20060116811 System  
The present invention provides an onboard system for determining vehicle emissions. The emissions are determined in real-time and may be transmitted to a remote terminal for storage and/or...
US20080276920 Exhaust emission control device of an internal combustion engine  
As forcible modulation parameters, a cycle and an amplitude are set so that O2 and CO concentrations in emissions at a catalyst inlet can be increased, and based upon the preset parameters,...
US20100101548 FUEL INJECTION CONTROL DEVICE AND METHOD FOR MULTI-FUEL ENGINE  
A fuel injection control device for a multi-fuel engine includes a corrector and a reviewer. An alcohol concentration learning unit is provided to learn an alcohol concentration in an injected...
US20080243354 Prediction based engine control system and method  
A prediction based engine control system is disclosed. The engine control system may have sensor configured to sense a current engine operation and generate a corresponding signal and a controller...
US20090157282 Air-Fuel Ratio Control Apparatus by Sliding Mode Control of Engine  
Factors affecting the response time of a transfer system from the combustion of injected fuel to the detection of its oxygen concentration include a stroke delay time due to an engine speed, the...

Matches 1 - 50 out of 74 1 2 >