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8815189 Gasoline engine emissions treatment systems having particulate filters  
Exhaust systems and components are suitable for use with gasoline engines to capture particulates and to reduce gaseous emissions, where three-way conversion (TWC) catalysts located on a...
8813479 Emissions control diagnostic method and system  
Various methods for and embodiments of an aftertreatment system which includes a catalyst disposed upstream of a particulate filter are provided. In one example, the method includes, conducting...
8815188 Method and device for monitoring a reducing agent solution composition in the exhaust gas system of an internal combustion engine  
A method for monitoring a reducing agent solution composition in an exhaust gas system of an internal combustion engine with metered injection of the reducing agent solution upstream of an SCR...
8813690 Engine control techniques to account for fuel effects  
A technique for engine control to account for fuel effects including providing an internal combustion engine and a controller to regulate operation thereof, the engine being operable to combust a...
8813475 Method for preventing choking of urea injection nozzle on SCR system  
A method for preventing choking of a urea injection nozzle in after run operation on a SCR system which supplies urea stored in a urea tank through a supply module, a urea injection nozzle and a...
8806851 Method for reducing emission of nitrogen oxide in a motor vehicle having a lean burning internal combustion engine  
In a method for reducing the emission of nitrogen dioxide in a motor vehicle having an exhaust gas purification system having an SCR catalytic converter with adsorption centers for nitrogen oxides,...
8806854 Method for monitoring a catalytic converter  
A method for monitoring the capability of a catalytic converter to convert nitrogen monoxide into nitrogen dioxide in the exhaust gas of an internal combustion engine, the catalytic converter being...
8806857 Device and method for removing carbon dioxide from motor vehicle exhaust  
A method and device for removing a minor portion of carbon dioxide from the exhaust gases of a motor vehicle, wherein less than 20 percent of the carbon dioxide is removed, and further wherein...
8808630 Exhaust gas catalytic converter system and method for operating an exhaust gas catalytic converter  
A method is disclosed for operating an exhaust gas catalytic converter designed to reduce nitrogen oxides in an exhaust gas flow using a solution that contains urea and that reacts to form at least...
8806853 System and method for SCR inducement  
A system and method of inducing proper operation of a diesel engine exhaust after-treatment system employing SCR technology monitors components to detect a fault condition representing one of a DEF...
8806852 Method for controlling regeneration within an after-treatment component of a compression-ignition engine  
A method for controlling regeneration within an after-treatment component of a compression-ignition engine includes receiving a value of a parameter associated with an exhaust stream passing...
8800268 Zone coated filter, emission treatment systems and methods  
Exhaust treatment filters, systems, and methods are disclosed. According to one or more embodiments, a particulate filter is zone coated with an oxidation catalyst and is used in an emission...
8800270 Process for reducing NO2 from combustion system exhaust  
An exhaust system for treating an exhaust gas composition having NO2 in a first NO2 concentration. The exhaust system includes a first catalyst that contacts a first portion of the exhaust gas...
8800266 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),...
8800274 Method for managing ammonia slip  
An internal combustion engine is configured to operate in a compression-ignition combustion mode and includes an exhaust aftertreatment system having an ammonia-selective catalytic reduction...
8793976 Sulfur accumulation monitoring systems and methods  
A system for a vehicle includes a change determination module, a sulfur determination module, and a final equivalence ratio (EQR) module. The change determination module estimates a change in an...
8793979 Control device and control method for reduction agent injection valve  
A controller and method of a reducing agent injector capable of accurately providing a required amount of ammonia to a reduction catalyst. A controller for controlling energization of an...
8793980 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...
8793975 Device and method for diagnosing a technical apparatus  
A device and a method are provided for diagnosing a technical apparatus which is particularly developed as an internal combustion engine. When specified states of the technical apparatus are...
8793984 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...
8789358 Selective catalytic reduction catalyst ammonia storage control systems and methods  
A control system for a vehicle includes a location identification module, an adjustment triggering module, and an adjustment module. The location identification module identifies a location where...
8789356 Zoned catalytic filters for treatment of exhaust gas  
Provided is an SCRF article having different SCR catalysts compositions disposed on a wall-flow filter substrate in zones that are arranged in series with respect to the inlet and outlet faces of...
8789357 Catalyst deterioration detection apparatus and method  
A technique which accurately detects the deterioration of an exhaust gas purification catalyst which is applied to an internal combustion engine capable of using gas fuel and liquid fuel. Where...
8790604 Systems and methods for managing emissions from an engine of a vehicle  
Disclosed embodiments include methods of removing carbon dioxide from combustion gas from an engine of a vehicle, systems for removing carbon dioxide from combustion gas from an engine of a...
8783012 Estimation of efficiency for aged catalysts  
Systems and methods for estimating an efficiency of a catalyst placed in an exhaust path of a combustion engine are disclosed. In one example approach, a method comprises: ageing the catalyst...
8783018 Reductant storage sensing system and method  
A catalyst supported on a substrate includes a heater embedded in a sub-region of the substrate to heat a local region of the catalyst. The amount of ammonia stored on the catalyst may be...
8784758 LNT control method for vehicle  
An LNT (Lean NOx Trap) control method for vehicles increases a purification rate of NOx while preventing an increase in the amount of slip of separated NOx at a relatively low LNT temperature. The...
8783019 Apparatus and method for onboard performance monitoring of oxidation catalyst  
An exhaust treatment system is disclosed that can diagnose the performance of an exhaust treatment oxidation catalyst in converting NO to NO2. The exhaust treatment system is fluidly coupled to an...
8783016 Hybrid HC absorber/EHC PZEV exhaust architecture  
A system may include a hydrocarbon (HC) absorber positioned in an exhaust flow path and an electrically heated catalyst (EHC) positioned in the exhaust flow path downstream of the HC absorber.
8783015 Shared EGR system and method for a dual-module engine  
In systems in which there is insufficient pressure difference between the intake and the exhaust to drive the EGR, an EGR pump is provided. In a dual-engine system, disclosed herein, the EGR...
8783011 Particulate matter detection strategy in exhaust filter  
Detecting particulate matter in an exhaust filter includes receiving data indicative of a time delay between transmission and reception of electromagnetic energy propagated through trapped...
8783021 Method for operating an internal combustion engine and apparatus for the implementation of the method  
A method for operating an internal combustion engine is proposed, in whose exhaust gas zone a particle filter is disposed, which is cyclically loaded with particles and thermally regenerated, as...
8783013 Feedforward selective catalytic reduction system for turbine engines  
A system and method of treating an exhaust flow including nitrogen oxides (NOx) in a turbine engine power generation plant is provided. The turbine engine has a selective catalytic reduction system...
8776497 Cogeneration system  
A cogeneration system includes a fuel evaporator; an internal combustion engine which outputs mechanical energy by combusting fuel evaporated by the fuel evaporator; an electric energy generator...
8776508 Passive valve assembly with negative start angle  
A passive valve assembly for a vehicle exhaust system includes an exhaust component that defines an exhaust gas flow path and a vane that is positioned within the exhaust gas flow path. The vane is...
8776502 System and method for regenerating an auxiliary power unit exhaust filter  
This disclosure relates to a method for controlling a system for regenerating a diesel particulate filter. The method includes monitoring an engine run time that has lapsed since a previous...
8776498 Air-injection system to improve effectiveness of selective catalytic reduction catalyst for gasoline engines  
Embodiments are described to improve the durability of a lean NOx aftertreatment system. According to one embodiment of the present invention an air injection system is used to inject air...
8776507 System and method for regenerating gasoline particulate filter  
A system for regenerating a particulate filter mounted on an exhaust pipe of a gasoline engine including a plurality of cylinders and an ignition device for igniting fuel and air in the cylinder, a...
8778290 Compact exhaust gas treatment systems for diesel applications  
An exhaust gas treatment system includes a SCR device and a DOC converter disposed upstream of the SCR device. A DEF dosing system includes an injector disposed upstream of the DOC converter for...
8776500 System and method for hydrocarbon adsorber regeneration in a hybrid vehicle  
A control system for a hybrid vehicle is presented. The control system can include an air/fuel ratio control module that selectively commands a rich air/fuel ratio upon starting an engine based on...
8776505 Method for predicting NOx amount and exhaust system using the same  
A method for predicting a NOx amount, may include determining a reference NOx amount according to a driving condition of an engine, primarily correcting the reference NOx amount according to an...
8776506 Method for predicting NOx amount and exhaust system using the same  
A method for predicting a NOx amount may include detecting an O2 amount in an intake air, calculating a reference O2 amount in the intake air according to a driving condition of an engine,...
8769929 Exhaust system with a NOx sensor  
Various systems and methods are described for controlling a NOx sensor coupled to an engine exhaust system in a motor vehicle. One example method comprises generating an offset of the sensor based...
8769935 System and method for monitoring reductant quality  
A method of operating an internal combustion engine having a reductant delivery and storage system in an emission control system, comprising of correlating a change in a monitored operating...
8771392 Device for particle separation in an exhaust-gas recirculation system and motor vehicle having the device  
A device for separating particles from an exhaust gas of an internal combustion engine includes at least a pot with a base having a multiplicity of openings, at least one nonwoven layer positioned...
8769927 EGR control in engine equipped with cylinders having dual exhaust valves  
A method and system for controlling recirculated exhaust gas composition and quantity provided to an internal combustion engine, which has one or more separately controllable combustion cylinders,...
8771625 Method for reducing nitric oxide in the exhaust gas flow of internal combustion engines  
A method is described for reducing nitrogen oxides in the exhaust gas flow of combustion engines, especially a motor vehicle internal combustion engine, wherein an air/fuel mixture in the...
8769940 Marine exhaust catalyst  
An internal combustion engine is coupled to an electric power generator. An exhaust manifold for the engine includes an exhaust gas conduit. A housing includes a catalyst in fluid communication...
8763366 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...
8765092 Non-stoichiometric perovskite oxide oxidation catalyst for oxidizing NO to NO2  
A non-stoichiometric perovskite oxide having the general chemical formula LaXMnOY, in which the molar ratio of lanthanum to manganese (“X”) ranges from 0.85 to 0.95, can be used in particle for...