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US20110072788 |
GASOLINE PARTICULATE FILTER REGENERATION AND DIAGNOSTICS
A method for operating a spark-ignition engine having a three-way catalyst and a particulate filter downstream thereof, comprising: oscillating an exhaust air-fuel ratio entering the particulate... |
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US20110139050 |
AGRICULTURAL EXHAUST CONDITIONING SYSTEM
An exhaust conditioning system for use with a tractor towing an air seeding implement comprises an exhaust duct arranged to communicate exhaust emissions from the engine of the tractor to the seed... |
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US20110214414 |
ELECTRICALLY HEATED PARTICULATE FILTER ENHANCED IGNITION STRATEGY
An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream... |
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US20120304625 |
EXHAUST DEVICE OF OUTBOARD MOTOR
A water jacket is attached to an exhaust manifold connected to an exhaust port to annularly cover an outer side of an exhaust channel in the exhaust manifold. An engine cooling coolant is made to... |
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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,... |
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US20110296817 |
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... |
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US20100319316 |
OXIDATION CATALYST FAULT DIAGNOSIS UNIT AND OXIDATION CATALYST FAULT DIAGNOSIS METHOD AND INTERNAL COMBUSTION ENGINE EXHAUST PURIFICATION APPARATUS
To provide an oxidation catalyst fault diagnosis unit and fault diagnosis method that can perform fault diagnosis of an oxidation catalyst with good precision in a desired time period and an... |
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US20130000278 |
METHOD FOR MINIMIZING AMMONIA SLIP FROM SCR CATALYSTS
Embodiments for reducing ammonia slip are provided. In one example, a method for reduction of ammonia emissions from an engine exhaust gas aftertreatment device with an SCR catalyst comprises... |
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US20130133312 |
EXHAUST GAS REFLUX AMOUNT ADJUSTING DEVICE
There is provided an exhaust gas reflux amount adjusting device capable of reducing the possibility of deterioration of a catalyst causing an operation failure of an EGR valve. An EGR gas reflux... |
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US20150252949 |
SYSTEM FOR STORING AMMONIA IN AND RELEASING AMMONIA FROM A STORAGE MATERIAL AND METHOD FOR STORING AND RELEASING AMMONIA
A system for storing ammonia in and releasing ammonia from a storage material capable of binding and releasing ammonia reversibly by adsorption or absorption for a process with a gradual ammonia... |
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US20110138783 |
EXHAUST PURIFYING SYSTEM FOR INTERNAL COMBUSTION ENGINE
An object is to provide an exhaust purifying system for an internal combustion engine having an NSR catalyst, which can inhibit emissions from being aggravated by blow-by of NOx. An exhaust... |
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US20120311996 |
FILTERING METHOD AND FILTER FOR A NOX SENSOR OF AN EXHAUST GAS SYSTEM
Embodiments for determining NH3 slip past a catalyst are provided. In one example, a filtering method for a NOx sensor of an exhaust gas system having an SCR catalytic converter comprises... |
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US20110270504 |
EXHAUST AND COMPONENT TEMPERATURE ESTIMATION SYSTEMS AND METHODS
An exhaust control system comprises a nominal specific heat module, a correction module, a specific heat determination module, and a convective loss estimation module. The nominal specific heat... |
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US20110083639 |
CYLINDER DEACTIVATION TO REDUCE FUEL ENRICHMENT AFTER FUEL CUTOFF MODES
A system includes a fuel cutoff module and a cylinder deactivation module. The fuel cutoff module generates a fuel cutoff signal when a deceleration fuel cutoff condition occurs, wherein fueling... |
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US20130291517 |
EXHAUST DIAGNOSTIC CONTROL SYSTEM AND METHOD WITH SELECTIVE DISABLEMENT OF NOX REDUCTION EFFICIENCY DIAGNOSTIC
An exhaust diagnostic control system comprises a test enabling module, an exhaust gas temperature management module in communication with the test enabling module, and a component management... |
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US20100313548 |
Emission Control System with an Optimized Reductant Injection Model
According to at least one aspect of the present invention, there is provided an emission control system which includes a reductant injector injecting a pre-determined amount of a reductant into a... |
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US20130199161 |
DEVICE FOR PURIFYING EXHAUST GAS OF INTERNAL COMBUSTION ENGINE
An electronic control device calculates the maximum actual oxygen storage capacity of a catalyst. The gradient of a linear expression formed between the catalyst temperature and the maximum oxygen... |
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US20110005202 |
IDENTIFYING AMMONIA SLIP CONDITIONS IN A SELECTIVE CATALYTIC REDUCTION APPLICATION
A system includes a filtering module that filters a first signal that indicates an amount of nitrogen oxides (NOx) in exhaust gas upstream from a catalyst, and that filters a second signal that... |
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US20110197567 |
Diesel Particulate Filter Regeneration Control Using A Wide Band Oxygen Sensor
A regeneration control system for use with a diesel engine having a diesel particulate filter is provided. This regeneration control system utilizes a wide band oxygen sensor placed in the exhaust... |
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US20110185707 |
METHOD FOR ESTIMATING SLIPPAGE OF A SELECTIVE CATALYST REDUCTION SYSTEM
A method for determining NH3 and NOx slippage through a SCR is described. In one example, signals from NOx sensors positioned upstream and downstream of a SCR are processed and provide indication... |
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US20110314793 |
SYSTEM AND METHOD FOR DETERMINING AN AGE OF AND CONTROLLING A SELECTIVE CATALYTIC REDUCTION CATALYST
An exhaust treatment system for exhaust gas produced by an engine includes a condition control module, a load determination module, and an age determination module. The condition control module... |
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US20110239629 |
FLUE GAS PURIFYING DEVICE
An object of the present invention is to provide a flue gas purifying device that can suppress leakage of ammonia and can efficiently decrease nitrogen oxides in flue gas. The object is achieved... |
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US20130269323 |
PARTICULATE MATTER DEPOSITION AMOUNT ESTIMATION DEVICE, EXHAUST GAS PURIFICATION SYSTEM, AND PARTICULATE MATTER DEPOSITION AMOUNT ESTIMATION METHOD
There are provided a differential pressure deposition amount of PM deposited in a DPF based on an exhaust gas flow rate and a differential pressure of the DPF, calculating a model deposition... |
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US20120079813 |
OPERATING METHODS FOR SELECTIVE CATALYTIC REDUCTION OF NOx
Where oxygenated hydrocarbons, such as ethanol, may be considered for use as a reductant to be added to diesel or gasoline engine exhaust for promoting the catalyzed reduction of NOx to N2, there... |
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US20110083422 |
SYSTEMS AND METHODS FOR CONTROLLING REGENERATION OF NITROGEN OXIDE ADSORBERS
An exhaust treatment system includes a nitrogen oxide (NOx) monitoring module and a regeneration control module. The NOx monitoring module monitors first and second NOx levels in an exhaust stream... |
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US20110308233 |
SELECTIVE CATALYTIC REDUCTION (SCR) CATALYST DEPLETION CONTROL SYSTEMS AND METHODS
A dosing control system for a vehicle includes an adaption triggering module, a dosing management module, and an adaption ending module. The adaptation triggering module triggers performance of an... |
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US20060272315 |
Fuel control for robust detection of catalytic converter oxygen storage capacity
An oxygen storage capacity (OSC) monitoring system for a vehicle having a catalytic converter includes an inlet oxygen sensor that generates an inlet sensor signal (ISS) based on an oxygen content... |
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US20110258988 |
NOx SENSOR VALUE CORRECTING DEVICE AND INTERNAL COMBUSTION ENGINE EXHAUST PURIFICATION SYSTEM
To provide a NOx sensor value correcting device with improved precision in detecting NOx concentrations and an internal combustion engine exhaust purification system equipped with this sensor... |
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US20120222406 |
EXHAUST PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE
An exhaust purification system for an internal combustion engine capable of lean-burn driving comprises: an NSR catalyst disposed in an exhaust passageway; an SCR disposed downstream of the NSR... |
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US20110131955 |
Deterioration Rate Determination Method of Lambda Sensor and System Thereof
A degradation rate decision method of a lambda sensor, may include an injection step injecting a reducing agent so as to regenerate a nitrogen oxide purification catalyst, a lambda value detection... |
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US20120047877 |
EXHAUST TREATMENT SYSTEM AND METHOD OF OPERATION
An exhaust treatment system is provided. Method of increasing activation of NOx reduction catalyst using two or more reductant is discussed. The exhaust treatment system includes an exhaust... |
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US20080163608 |
DEVICE FOR ESTIMATING THE LOAD STATE OF A NOX STORAGE CATALYTIC CONVERTER
A device for estimating the loading state of a NOx storage catalytic converter. The device includes a module for determining the oxygen concentration difference between an oxygen concentration... |
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US20130255232 |
OXYGEN SENSOR CONTROL APPARATUS
An oxygen sensor control apparatus includes internal resistance detection means S3, controlled internal resistance obtaining means S4 to S11, and heater energization control means S12. When a... |
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US20120000184 |
METHOD OF MONITORING SOOT MASS IN A PARTICULATE FILTER AND MONITORING SYSTEM FOR SAME
A method of monitoring soot mass in a particulate filter of an exhaust system includes predicting soot mass in the particulate filter based at least partially on a pressure differential between... |
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US20130298533 |
System for Indicating Quality of a Diesel Exhaust Fluid ("DEF")
An exhaust gas treatment system for an internal combustion engine is provided having an exhaust gas conduit, a diesel exhaust fluid (“DEF”) source, a selective catalytic reduction (“SCR”) device,... |
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US20110005203 |
IDENTIFYING AMMONIA NON-SLIP CONDITIONS IN A SELECTIVE CATLYTIC REDUCTION APPLICATION
A system includes a sampling module, a correlation determination module, and an injector control module. The sampling module samples first and second signals that indicate an amount of nitrogen... |
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US20140208716 |
EXHAUST SYSTEM HAVING SENSOR PLACEMENT DETECTION
An exhaust control system for use with a combustion engine is disclosed. The system may have an exhaust passage, an exhaust sensor located within the exhaust passage and configured to generate a... |
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US20080202104 |
Controller of exhaust gas purifying agent and exhaust gas purifying system
A quantity of a purifying agent that is added into an exhaust gas, reacts with a specific component in the exhaust gas, and purifies the exhaust gas is controlled. A controller is configured so as... |
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US20120186234 |
DIESEL PARTICULATE FILTER CONTROL
Methods and systems are provided for managing particulate emissions in an engine including a particulate filter and a CO2 sensor downstream of the filter. A CO2 sensor may be used to infer the... |
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US20110131954 |
DIESEL PARTICULATE FILTER CONTROL
Methods and systems are provided for managing particulate emissions in an engine including a particulate filter and a CO2 sensor downstream of the filter. A CO2 sensor may be used to infer the... |
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US20110184631 |
NOx CONTROL DURING LOAD INCREASES
A method of controlling a diesel engine connected to a load, the method including the steps of detecting an increased torque requirement and matching a fuel flow with an airflow. The detecting an... |
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US20130067892 |
SELECTIVE CATALYTIC REDUCTION SYSTEM
A selective catalytic reduction system (SCR) that reduces a burden on a battery resulting from energization of a heater and a decrease in time during which an NOx concentration cannot be detected.... |
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US20090171553 |
SYSTEM FOR DETERMINING THE LEVEL OF SULPHUR POISONING OF DEPOLLUTION MEANS INTEGRATED INTO THE EXHAUST LINE OF A MOTOR VEHICLE ENGINE
The invention relates to a system for determining the level of sulphur poisoning of depollution means integrated into the exhaust line of a motor vehicle engine, said system being associated with... |
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US20120317960 |
CATALYST DEGRADATION DETECTION DEVICE
A catalyst degradation detection device, determines whether a three-way catalyst has degraded on the basis of the maximum value of the amount of oxygen stored by the catalyst. When determining... |
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US20140165537 |
ZERO CERIA WASHCOAT CATALYST MONITOR
A catalyst degradation detection method for use with a zero ceria catalyst. The method uses techniques to measure transient responses to engine control events of upstream and downstream sensors to... |
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US20120279202 |
METHOD FOR EXHAUST GAS-RECIRCULATION
A method for exhaust gas recirculation (EGR), in particular in internal combustion engines, in particular for reducing NOx emission, by actuating an EGR valve (2) and/or a throttle flap (3),... |
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US20120031074 |
METHOD AND DEVICE FOR REGENERATING A PARTICLE FILTER
A method and device for monitoring and controlling the regeneration of a particle filter in an exhaust gas duct of an internal combustion engine which has a three-way catalytic converter... |
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US20100024394 |
TROUBLE DIAGNOSIS DEVICE FOR EXHAUST GAS PURIFICATION SYSTEM AND TROUBLE DIAGNOSIS METHOD FOR EXHAUST GAS PURIFICATION SYSTEM
There are provided a trouble diagnosis device and a trouble diagnosis method for an exhaust gas purification system in which the presence or absence of a trouble of the exhaust gas purification... |
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US20110036069 |
METHOD FOR OPERATING A LAMBDA SENSOR DURING THE HEATING PHASE
In a method for operating a lambda sensor disposed in an exhaust gas system of an internal combustion engine,—the heating element is subjected to a predefined heating power substantially with the... |
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US20100293925 |
Method for Determining the Nitrogen Dioxide Concentration in Exhaust Gases
In a method for determining an NO2 concentration and/or a concentration ratio of NO2 and NO in an exhaust tract of a combustion device, such as an internal combustion engine, an NOx sensor that is... |