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7111454 |
Fuel control compensation for secondary air system flow variation
An engine control system and method maintains an optimum exhaust fuel to air ratio in an internal combustion engine. A secondary air injection (SAI) pressure is measured in an SAI system. The SAI...
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7111450 |
Method for controlling the temperature of an emission control device
A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders...
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7111591 |
Method of improving the operation of combustion particulate filters
A method is disclosed that improves the operation of fuel combustion systems utilizing particulate filters. The method includes the combustion of a fuel emulsion in a fuel combustion system having...
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7111456 |
Exhaust emission control apparatus for internal combustion engine
In an exhaust emission control apparatus having an NOx catalyst disposed on an exhaust passage of an internal combustion engine, the present invention is intended to suppress deterioration in...
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7111453 |
Emissions control
A cost-effective solution to remove particulates from diesel, especially light-duty diesel engines incorporates an oxidation catalyst ( 2 ) effective to convert NO in the exhaust from the engine to...
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7107761 |
Exhaust control apparatus of internal combustion engine and exhaust gas flow amount estimating method
An exhaust control apparatus applied to an internal combustion engine in which intake sides of a plurality of cylinder groups are connected to a common intake passage and exhaust sides thereof are...
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7107764 |
Exhaust treatment system
An exhaust treatment system of a power source includes a filter having a housing with an inlet and an outlet, and a regeneration device disposed outside of the housing of the filter. The...
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7104042 |
Supercharged four-stroke internal-combustion engine with variable-volume exhaust gas exhaust device and method of operation of such an engine
A four-stroke supercharged internal-combustion engine includes at least two cylinders with a combustion chamber ( 14 ), an air intake ( 16 ) including a pipe ( 20 ) associated with a shutoff ( 21...
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7104044 |
Method for reducing the exhaust emissions from an engine system
The invention relates to a method for reducing the exhaust emissions during the cold start of an internal combustion engine ( 3 ). According to the method, a starter motor ( 4 ) is operated in...
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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...
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7104051 |
Exhaust gas purification device
The invention provides an exhaust gas purification device that can prevent deterioration of the emission during a regeneration process for a particular filter for trapping particulates contained in...
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7104049 |
Exhaust gas purifying system and regeneration end determining method
An exhaust gas purification system includes an oxygen mass flow rate detecting unit for detecting or calculating a mass flow rate of oxygen fed to a filter and a regeneration end determining unit...
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7104045 |
System and method for removing hydrogen sulfide from an emissions stream
In an apparatus having a combustion engine and an emissions system including a catalytic converter and a metal oxide catalyst disposed downstream of the catalytic converter, a method of controlling...
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7104048 |
Low emission diesel particulate filter (DPF) regeneration
A diesel engine system includes a diesel engine having a first exhaust segment and a second exhaust segment. A filter filters exhaust gas from the first and second exhaust segments. A flow control...
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7101531 |
Fuel reforming system and control therefor
A fuel reforming system has a reformer ( 4 ) for reforming a fuel to produce a reformate gas; a shift converter ( 5 ) for reacting carbon monoxide (CO) contained in a reformate gas with water to...
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7100362 |
Vehicle and method for operating a vehicle to reduce exhaust emissions
A method for operating a vehicle to reduce exhaust emissions is provided. The vehicle includes an engine, a motor, a battery for operating the motor, and a catalyst for reducing exhaust gas...
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7100364 |
Open loop fuel controller
This invention relates to an apparatus for controlling the air-fuel ratio demanded by a fuel controller in order to maintain optimum performance of a catalytic converter. Provided is an open loop...
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7100367 |
Device for exhaust gas treatment of a combustion system
A device is provided for the exhaust gas treatment of a combustion system, e.g., a diesel combustion system. The device has a first storage unit for storing at least one urea-water solution, and an...
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7100363 |
Method for operating an internal combustion engine of a vehicle, in particular a motor vehicle
The invention relates to a method for operating an internal combustion engine of a vehicle, in particular a motor vehicle, with a first operating range as the lean operating range, to discharge the...
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7093430 |
Method and device for implementing a method for ascertaining the load condition of a component arranged in an exhaust-gas region of an internal combustion engine
A method and a device for implementing a method for ascertaining the load condition with an exhaust-gas component of a component arranged in an exhaust-gas region of an internal combustion engine...
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7093426 |
Starting apparatus, starting method, control method and exhaust filtration apparatus of internal combustion engine
To improve startability and reduce the amount of HC emission at start-up with the aid of a construction where vaporized fuel is supplied to the bypass passage that bypasses the main passage. The...
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7089730 |
Exhaust gas purification method for internal combustion engine
To obtain an exhaust gas purification method for an internal combustion engine for detecting timing at which an inflow NOx amount flowing into an NOx absorption catalyst exceeds an NOx amount...
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7086220 |
Regeneration control method for continuously regenerating diesel particulate filter device
A regeneration control method for regenerating a continuously regenerating diesel particulate filter device capable of regenerating a filter by efficiently removing PM while suppressing the...
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7086221 |
Method for increasing an exhaust gas temperature of a spark-ignition, direct injection internal combustion engine
The invention relates to a method for at least temporarily increasing an exhaust gas temperature of a spark-ignition, direction injection internal combustion engine ( 10 ) involving at least one...
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7082751 |
Gas compressor pollution control system and method
A pollution control system and method for a compressor for compressing gas, according to which a combustion engine is connected to the compressor for driving the compressor, and the products of...
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7082752 |
Method and device for monitoring an exhaust gas treatment system
A method and a device for monitoring an exhaust gas aftertreatment system, in particular an oxidation catalytic converter, are described. An error is recognized if an operating parameter does not...
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7082754 |
Regeneration of diesel particulate filter
This invention relates to regeneration of a filter ( 41 ) which traps particulate matter contained in the exhaust gas of a diesel engine ( 1 ) for a vehicle. A programmable controller ( 31 )...
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7080506 |
Exhaust gas recirculation system for internal combustion engine
An exhaust gas recirculation system is configured to recirculate a large amount of exhaust gas to an engine intake passage while reducing contamination inside the intake passage caused by the...
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7080505 |
Vehicular atmosphere cleansing method
A vehicular atmosphere cleansing system utilizes a regenerative wheel having flow channels extending through the wheel coated with an adsorbant. An atmosphere stream passes through a first position...
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7081231 |
Method and system for the combination of non-thermal plasma and metal/metal oxide doped γ-alumina catalysts for diesel engine exhaust aftertreatment system
The present disclosure pertains to a system and method for treatment of oxygen rich exhaust and more specifically to a method and system that combines non-thermal plasma with a metal doped...
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7081154 |
Device and method for determining a malfunction in a filter
A device for detecting a failure of a filter used to clean a gas stream, in particular an exhaust gas stream, of soot particulates, including a chamber which is insertable into the gas stream to be...
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7076945 |
Method and system for controlling temperatures of exhaust gases emitted from an internal combustion engine to facilitate regeneration of a particulate filter
Method, system, and controller for increasing exhaust gas temperatures through controlled operation of a radiator fan in order to facilitate regeneration of a particulate filter. The method,...
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7076943 |
System and method for determining set point location for oxidant-based engine air/fuel control strategy
The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of...
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7073323 |
Secondary air supply apparatus and method for detecting abnormality thereof
A secondary air supply apparatus controls emissions from an engine through secondary combustion of combustible matters in exhaust gas accomplished by supplying air to an exhaust pipe upstream of an...
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7073324 |
Device and method for determining the need for regeneration in a NOx storage catalyst
The invention relates to a device and method for determining the need for regeneration in a NO x storage catalyst ( 18 ) arranged in the exhaust train ( 12 ) of an at least periodically...
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7073465 |
Method and device for operating an internal combustion engine
A method and device for operating an internal combustion engine, which diagnose and/or adapt the exhaust-gas recirculation system for, in particular, multibranch internal combustion engines. In...
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7073327 |
Exhaust emission control system, method of calculating pressure loss of filter, and method of manufacturing filter
There are disclosed an exhaust emission control system including an internal combustion engine, a filter, and an exhaust pipe, a method of manufacturing a filter suitable for the system, and a...
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7073480 |
Exhaust emission control apparatus and method for internal combustion engine
An exhaust emission control apparatus for an internal combustion engine includes a fuel injection valve placed substantially at a midpoint above a combustion chamber of the engine; a piston having...
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7073326 |
Diesel particulate matter reduction system and a method thereof
A diesel particulate matter reduction system includes a diesel particulate filter (DPF), an electric power supply device, a heater, an air blower, and a control unit. The DPF is configured to...
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7073321 |
Controller for internal combustion engine
A controller for an internal combustion engine that accurately diagnoses heating control of a catalytic device as having or not having an abnormality. The controller increases speed of the engine...
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7073325 |
Exhaust emission control method and system
An emission control device stores SOx when the air/fuel ratio of exhaust gas is lean, and releases the stored SOx when the temperature of the emission control device is raised to a desulfurization...
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7073322 |
System for emission device control 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...
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7069718 |
Engine system and method for injector cut-out operation with improved exhaust heating
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...
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7067319 |
System for diagnosing reagent solution quality and emissions catalyst degradation
A system for determining a reagent solution quality indicator includes a reagent solution source for supplying the reagent solution to an emissions catalyst configured to receive a NOx-containing...
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7065960 |
Method for activation of the regeneration of a particulate filter based on an estimate of the quantity of particulate accumulated in the particulate filter
Method for activation of the regeneration of a particulate filter for a motor vehicle engine, comprising the steps of calculating an estimated value (x M ) of a quantity of particulate accumulated...
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7065962 |
Exhaust gas purifying system
An exhaust gas purifying system and a method for purifying exhaust gas of combustion engines. The system includes a hollow casing, a converter chamber disposed within the casing, spray nozzles for...
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7062904 |
Integrated NOx and PM reduction devices for the treatment of emissions from internal combustion engines
One aspect of the invention relates to a particulate filter useful in treating exhaust from a diesel-power vehicle. The particulate filter comprises filter elements for removing particulate matter...
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7062907 |
Regeneration control system
The regeneration control system is provided that conducts a regeneration processing for oxidizing particulate matter collected in the diesel particulate filter (DPF) whereby the regeneration...
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7062906 |
Regeneration of particulate filter
A regeneration device for a filter ( 13 ) which traps particulate matter in an exhaust gas of an engine ( 1 ) is disclosed. The regeneration device has a sensor ( 25 ) which detects an engine...
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7063072 |
Diesel engine with catalytic converter
Diesel engine with unit injectors and a catalytic converter arranged in the engine exhaust system, for reaction with uncombusted fuel. The injectors have spill valves, which in their closed...
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