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8464514 |
Method for regenerating a particulate filter for a boosted direct injection engine
A method for regenerating a particulate filter is disclosed. In one example, oxygen is pumped from the intake system of a direct injection turobocharged gasoline engine through a cylinder and into...
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8464518 |
Fuel vapor enrichment for exhaust exothermic catalyst light-off
An engine system includes an engine with a secondary air source, a fuel system that communicates with the engine, and a controller that communicates with the fuel system. The controller controls a...
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8464520 |
Control of diesel particulate filter regeneration duration
Termination of regeneration of a particulate filter may be based on a variable percent threshold of stored particulate, where the percent threshold of stored particulate depends on a current soot...
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8464521 |
Method and arrangement for maintaining a diesel particulate filter in a diesel engine exhaust system
A method and apparatus for maintaining a diesel particulate filter (DPF) is provided. A pressure drop across the DPF is measured and an initial estimate of soot loading in the DPF is provided to a...
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8464524 |
Trap for exhaust system
A system for trapping liquid exhaust during a cold start of an internal combustion engine is provided. As one example, a system includes, an exhaust inlet, an exchange area fluidly coupled...
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8459012 |
Method for purging a dosing system
A method for purging reductant from a reductant supply system is disclosed. The method includes dispensing reductant into an exhaust system via a dispensing device. The method also includes purging...
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8459003 |
Exhaust gas after-treatment having reduced rhodium depletion
In a method for the after-treating of an exhaust gas from a preferably direct-injection and/or spark-ignition internal combustion engine, the exhaust gas is fed through a catalytic converter system...
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8459009 |
Method and device for controlling an SCR-exhaust gas after-treatment system of an internal combustion engine
A method for controlling an SCR-exhaust gas after-treatment system (1) of an internal combustion engine (8), in particular of an internal combustion engine of a motor vehicle, has one or more steps...
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8459010 |
System and method for controlling nitrous oxide emissions of an internal combustion engine and regeneration of an exhaust treatment device
A catalyst composition is provided that includes a catalytic metal secured to a substrate, and the substrate is mesoporous and has pores that are templated. A catalyst composition includes a...
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8460625 |
Exhaust gas purification apparatus and method for engine and filter regeneration system of the exhaust gas purification apparatus
An exhaust gas purification apparatus for an engine is provided with a filter arranged in an exhaust passage of the engine, and a regeneration control unit for regenerating the filter by burning...
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8463529 |
System and method of operating internal combustion engines at fuel rich low-temperature- combustion mode as an on-board reformer for solid oxide fuel cell-powered vehicles
A distinctive method of operating an internal combustion engine in a low-temperature combustion mode. An engine combustion chamber is provided with fuel and air charges before combustion conditions...
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8453431 |
Engine-out NOx virtual sensor for an internal combustion engine
A method for controlling an internal combustion engine includes monitoring engine operation including a parameter descriptive of NOx generation within the engine, determining a fast transient NOx...
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8453430 |
Configuration and method for cleaning an exhaust gas flow of an internal combustion engine by separating particles and motor vehicle having the configuration
A configuration for purifying or cleaning an exhaust-gas flow of an internal combustion engine includes at least an ionization device, an agglomeration device, and a (catalytically active) radial...
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8453434 |
Method for adapting an SCR catalytic converter in an exhaust system of a motor vehicle
A method for adapting a kinetic model of a SCR is described. In one example, the kinetic model is adapted for stored ammonia, ammonia release rate, and ammonia storage capacity. The method may be...
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8453435 |
Method for controlling exhaust gas purification device
Disclosed is a method for controlling an exhaust gas purification device, wherein the regeneration operation includes main regeneration operation for detaching the nitrogen oxides adsorbed onto the...
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8448427 |
Hydrocarbon retaining and purging system for flex-fuel combustion engine
Systems, methods, and computer readable storage media are described in which exhaust gas is routed to a hydrocarbon retaining device during starting, and purged to the engine intake manifold....
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8452474 |
Control device for hybrid vehicle and control method therefor
In a hybrid vehicle that includes an internal combustion engine in conjunction with an electric motor, when one of a process of regenerating the purification capacity of an exhaust gas purifying...
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8448424 |
Emission control system with an integrated particulate filter and selective catalytic reduction unit
The present invention relates to an emission control system for reducing gases from the exhaust of a combustion process. In at least one embodiment, the emission control system includes an exhaust...
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8448423 |
Method and apparatus for controlling operation of a spark-ignition direct-injection engine
Operation of a spark ignition, direct injection engine having an aftertreatment system including an oxidation catalyst and a selective catalyst reduction device is described. The method includes...
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8443589 |
Diesel oxidation catalyst efficiency diagnostic method
A diesel oxidation catalyst (DOC) testing system includes a DOC that is located in an exhaust system of a vehicle. A control module verifies proper operation of the DOC during a post-fuel injection...
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8447461 |
Particulate filter ash loading prediction method and vehicle with same
A particulate filter (PF) ash loading prediction method includes the steps of: regenerating the PF using a first soot loading prediction model or a second soot loading prediction model; determining...
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8443588 |
Control apparatus for internal combustion engine
There is provided a control apparatus for an internal combustion engine, which can favorably reduce a load necessary for cranking at the time of the next start, while preventing the fresh air...
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8443593 |
Liquid-cooled exhaust valve assembly
A valve assembly may include a valve body, a valve member, and a valve shaft. The valve body may include an inlet, an outlet, and first and second fluid paths in fluid communication with the inlet....
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8438838 |
Fuel-fired burner and heat exchanger system for heating a NOx reducing agent supply tank
A fuel-fired burner in a vehicle exhaust system is used to heat up a frozen NOx reducing agent supply tank within a predetermined target amount of time. A method and apparatus are used to identify...
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8438837 |
Control of an exhaust gas aftertreatment device in a hybrid vehicle
The present invention involves a method for maintaining temperature in an exhaust gas treatment device for an internal combustion engine in a hybrid vehicle. The engine has a crankshaft and at...
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8438840 |
Particulate filter regeneration in an engine
Systems and methods for controlling regeneration of a particulate filter downstream of an engine having a plurality of cylinders are provided. One exemplary method includes, during first...
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8438841 |
Particulate filter regeneration in an engine
Systems and methods for controlling regeneration of a particulate filter positioned downstream of an engine in a vehicle are provided herein. One exemplary method includes, during combusting engine...
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8434294 |
Method and device for determining a dynamic time duration for exhaust gas probes of an internal combustion engine
An exhaust catalyst is charged with oxygen until saturated. A given first rich air/fuel ratio (LAM1_SP) is set in a combustion chamber of a cylinder. A first oxygen storage capacity value (OSC1) is...
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8434295 |
System and method for reducing NOx emissions in an apparatus having a diesel engine
A method for increasing temperature of an aftertreatment device configured to treat emissions from a diesel engine includes adjusting intake valve closure timing.
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8429903 |
Radial mounting for regeneration device
An exhaust treatment system for machine is disclosed that includes a burner body having an inlet for receiving a flow of exhaust, an outlet for the exhaust flow to exit, an opening and a receiving...
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8429898 |
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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8429896 |
Engine exhaust systems with secondary air injection systems
A variety of embodiments of exhaust systems for engines including small off-road engines, and related methods of operation, are disclosed. In at least some embodiments, the exhaust system includes...
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8429897 |
Method for operating an internal combustion engine
In a method for operating an air-compressing fuel-injection internal combustion engine having an exhaust gas post-treatment system with a particle filter and a nitrogen oxide reduction catalytic...
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8424294 |
Procedure for regenerating an exhaust gas after treatment system
Procedure for regenerating an exhaust gas after treatment system, especially a particle filter, of a combustion engine that is arranged in a motor vehicle, with regeneration cycles that are...
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8424289 |
Technique for production of ammonia on demand in a three way catalyst for a passive selective catalytic reduction system
A powertrain includes an internal combustion engine having multiple cylinders and an aftertreatment system having a selective catalytic reduction device utilizing ammonia as a reductant. An ammonia...
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8424290 |
Method and system for controlling an engine during diesel particulate filter regeneration at idle conditions
A method and control system for controlling an engine during diesel particulate filter regeneration includes a diesel particulate filter (DPF) regeneration request module that generates a DPF...
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8424287 |
Electric preheating of a catalytic convertor using a solar cell array
An internal combustion engine vehicle or hybrid-electric vehicle is provided with a vehicle-mounted solar cell array capable of generating electrical power. The solar cell array and other elements,...
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8424286 |
Vehicle relocatable exhaust system components
Modification of reductant (e.g., diesel exhaust fluid, DEF) tank location, for example during vehicle up-fitting may result in less than optimal operation of the DEF system due to inaccurate DEF...
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8424295 |
Particulate filter regeneration during engine shutdown
Systems and methods for controlling regeneration of a particulate filter downstream of an engine in a vehicle are provided herein. One exemplary method includes, during first engine shutdown...
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8418440 |
Apparatus, system, and method for diverting fluid
A pump component is removed from a port of a suction-side fluid cavity of a high-pressure fluid pump. The pump component performs a pump function for the high-pressure fluid pump. A primary coupler...
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8418441 |
Systems and methods for controlling temperature and total hydrocarbon slip
Systems and methods for controlling temperature and total hydrocarbon slip in an exhaust system are provided. Control systems can comprise an oxidation catalyst, a particulate filter, a fuel...
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8413432 |
Particulate filter regeneration interruption systems and methods
A regeneration control system for a vehicle includes a regeneration control module and a regeneration interrupt module. The regeneration control module selectively provides fuel to an oxidation...
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8413425 |
Control device and control method for exhaust gas purification apparatus, and internal combustion engine exhaust gas purification apparatus
A control device and method for exhaust gas purification that can prevent the adsorption amount from becoming excessively lower than the saturated adsorption amount and can prevent the reduction...
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8413424 |
Stored reductant state for startup
An engine exhaust aftertreatment system including an catalyst-based device configured to reduce an amount of NOx in exhaust gases produced by an engine using reductant stored in the catalyst-based...
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8413420 |
Apparatus and methods for carbon dioxide capture and conversion
To alleviate and possibly even reverse global warming while providing a liquid fuel to replace petroleum, apparatus and methods are disclosed for capturing CO2 from an air mixture and converting it...
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8413427 |
Dosing control systems and methods
A dosing control system for a vehicle includes a pump control module and an enabling/disabling module. The pump control module controls a pump that provides dosing agent to a dosing agent injector...
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8413429 |
Method for determining the amount of particulate accumulated in a particulate filter
A method for determining the amount of particulate that has accumulated in a particulate filter, comprising calculating an amount of particulate that has accumulated in the particulate filter on...
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8413426 |
Method of exhaust cleaning for internal combustion engine and exhaust cleaner
An exhaust cleaning method and exhaust cleaning apparatus for an internal combustion engine (1) in which a fuel is fed and burned under periodical rich/lean combustion conditions. In a fuel...
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8407985 |
Method of monitoring hydrocarbon levels in a diesel particulate filter
In a method of determining hydrocarbon slip through a diesel oxidation catalyst for an engine having an electronic control module and an exhaust system having a diesel oxidation catalyst and a...
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8407984 |
Vehicle mounted engine control apparatus
A vehicle mounted engine control apparatus serves to prevent air fuel ratio control from becoming an excessively fuel rich state by sequentially actuating heaters for early activation of a pair of...
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