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8863507 Exhaust gas purification system for the treatment of engine exhaust gases by means of SCR catalyst  
An exhaust gas purification system (method and device) for the treatment of diesel exhaust gases containing nitrogen oxides and hydrocarbons is disclosed, which comprises the addition of ammonia or...
8863504 System, method, and apparatus for determining aftertreatment fluid quality  
A method includes determining a first NOx conversion efficiency (η) value and determining that a diesel exhaust fluid (DEF) level has increased a threshold amount. Further, the method includes ...
8863496 Particulate matter control system and its failure determination method  
A particulate matter control system includes: an electrode that is provided in an exhaust pipe of an internal combustion engine; a power supply that is connected to the electrode and that applies...
8863505 Start-stop hybrid exothermic catalyst heating system  
A catalyst heating system includes a first monitoring module, a mode selection module and an electrically heated catalyst (EHC) control module. The first monitoring module monitors at least one of...
8863503 Exhaust purification system for internal combustion engine  
An exhaust purification system is provided that can appropriately grasp the NOx concentration or NH3 concentration on a downstream side of a selective reduction catalyst. A separation filter of the...
8863497 Control methods for improved catalytic converter efficiency and diagnosis  
A controlling method for adjusting concentrations of, for example, individual cylinder's exhaust gas constituents to provide engine functions such as catalytic converter diagnosis, increased...
8857161 Exhaust gas purification apparatus and exhaust gas purification method for an internal combustion engine  
A detection unit that is arranged in an exhaust passage of an internal combustion engine configured to detect a state of the exhaust gas, addition unit configured to add the additive agent into the...
8857155 Methods and systems for humidity detection via an exhaust gas sensor  
Various methods and system are described for determining ambient humidity via an exhaust gas sensor disposed in an exhaust system of an engine. In one example, a reference voltage of the sensor is...
8857152 System and method for unloading hydrocarbon emissions from an exhaust after-treatment device  
A method unloads hydrocarbon emissions deposited by an exhaust gas on an after-treatment device that is employed in an exhaust system for an internal combustion engine. The method includes...
8857158 Aftertreatment system and control strategy for internal combustion engine  
In an exhaust gas treatment method for an internal combustion engine, a DPF abnormal combustion causing operation is determined to have occurred when the internal combustion engine shifts from a...
8857154 Exhaust aftertreatment for NOx-containing exhaust from an internal combustion engine  
A method of treating NOx-containing exhaust from an internal combustion engine. An exhaust aftertreatment system has the following devices arranged in the following order downstream the exhaust...
8858903 Methods for oxidation and two-way and three-way ZPGM catalyst systems and apparatus comprising same  
Oxidation ZPGM catalyst systems and three way ZPGM catalyst systems are disclosed. ZPGM catalyst systems may oxidize toxic gases, such as carbon monoxide and hydrocarbons, optionally some ZPGM...
8857153 Method for measuring the quality of ammonia injection for an exhaust gas after treatment system of a vehicle  
A system and method for determining a rate of ammonia deposition and controlling an engine is described. In one example, an amount of ammonia deposited in an engine exhaust is determined and the...
8850800 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...
8850798 Particulate filter regeneration method  
A regeneration system for a filter that filters exhaust gas of an engine includes a soot loading determination module that determines soot accumulation in the filter. A regeneration control module...
8850803 Auxiliary power and emission-control system using vented gaseous fuel recovery and method  
A system includes a main engine operating on gaseous fuel from a tank. An auxiliary engine operates using gaseous fuel vented from the tank. A first exhaust passage receives a first stream of...
8845987 Method for improving lean performance of PGM catalyst systems: synergized PGM  
Synergized Platinum Group Metals (SPGM) catalyst system for TWC application is disclosed. Disclosed SPGM catalyst system may include a washcoat with a Cu—Mn spinel structure and an overcoat that i...
8844267 Method and system for controlling a nitrogen oxide (NOx) conversion efficiency monitor  
A vehicle includes an engine, an exhaust system, a selective catalytic reduction (SCR) device, a first and a second NOx sensor configured to respectively measure an upstream and a downstream NOx...
8844268 Abnormality detection apparatus for exhaust gas purification apparatus and abnormality detection method for exhaust gas purification apparatus  
It is determined quickly whether there is a shortage in reducing agent supplied to an NOx selective reduction catalyst. After it is determined that a quantity of reducing agent equal to or larger...
8844271 Method and apparatus for regenerating a catalyzed diesel particulate filter (DPF) via active NO2-based regeneration with enhanced effective NO2 supply  
In a method for regenerating s catalyzed diesel particulate filter (DPF) via active NO2-based regeneration with enhanced effective NO2 supply, a NOx containing gas is introduced into the DPF, and a...
8844272 Particulate filter regeneration during engine shutdown  
Various systems and method are described for controlling an engine having an exhaust system which includes a particulate filter. One example method comprises, after shutting down the engine and...
8844269 Aftertreatment system and method for pre-decomposed reductant solution  
There is disclosed a method and system for pressurizing a reductant solution from a reductant storage device and superheating the pressurized reductant solution. The superheated pressurized...
8844274 Compact diesel engine exhaust treatment system  
A diesel engine exhaust treatment system and method is provided which utilizes a diesel particulate filter positioned in the exhaust gas stream of a vehicle which includes an SCR catalyst, an...
8839611 Exhaust injection muffler  
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...
8839604 Method and apparatus for operating an internal combustion engine  
In a method and apparatus for operating an internal combustion engine, a lambda control is carried out, in which a trim regulation is provided, which operates with a P regulator component and an I...
8839608 Method of controlling an internal combustion engine and corresponding internal combustion engine  
A method of controlling an internal combustion engine that includes an exhaust line fitted with a particulate filter, the method including: a) acquiring a charge parameter relating to a fill level...
8839607 Ejector in conjunction with post-catalyst exhaust throttle for vacuum generation  
Methods and systems are provided for expediting catalyst heating and generating vacuum by controlling an EBV to direct exhaust through an ejector arranged in parallel with the EBV. A position of...
8839602 Non-methane hydrocarbon conversion efficiency diagnostic for a diesel after-treatment system  
A method of assessing non-methane hydrocarbon (NMHC) conversion efficiency in a diesel after-treatment (AT) system having a diesel oxidation catalyst (DOC) arranged upstream of a diesel particulate...
8834820 Adaptive catalytic conversion and reduction agent control  
An emissions control system includes a Selective Catalytic Reduction (SCR) device, one or more monitoring devices and one or more sensors. The system further includes a controller configured to...
8833061 Method and device for regenerating a particle filter in a Y-exhaust gas system  
A method and device for regenerating an exhaust gas aftertreatment component for filtering soot particles in an engine having a first cylinder group, exhaust gases being guided through an exhaust...
8833058 Variable valvetrain turbocharged engine  
Embodiments for routing exhaust in an engine are provided. In one example, an engine method comprises, during a first condition, firing a subset of cylinders and routing all exhaust from the subset...
8833060 Method for operating a spark-ignition internal combustion engine with exhaust gas aftertreatment  
Embodiments for regenerating a particle filter are provided. In one example, a method includes operating a spark-ignition internal combustion engine having a particle filter for collecting and...
8833063 Methods and system for ash detection in exhaust particulate filter  
A method of detecting ash in an exhaust particulate filter system for an internal combustion engine includes transmitting electromagnetic energy through an exhaust particulate filter containing...
8838306 Method and device for operating a drive unit  
In a method and a device for operating a drive unit, a first output variable of the drive unit is restricted; a setpoint value of a second output variable of the drive unit is specified; and an...
8834821 Control techniques for an SCR aftertreatment system  
A method includes providing: a selective catalytic reduction (SCR) catalyst disposed in an exhaust gas stream of an internal combustion engine, a reagent injector operationally coupled to the...
8826645 Hydrocarbon conversion diagnostic  
A system includes an engine configured to operate in a first operating state and a second operating state, a particulate filter configured to receive exhaust gas from the engine and filter...
8826648 Method for selective catalytic reduction of nitrogen oxides in exhaust gas of internal-combustion engines  
A method is provided for the selective catalytic reduction of nitrogen oxides in the exhaust gas of internal-combustion engines in motor vehicles. An electronic control device, by way of a signal...
8826644 Engine and exhaust aftertreatment control  
A method of controlling an internal combustion engine and exhaust system having an SCR, and engine and exhaust system including an SCR, described herein, monitors, in real time, NOx conversion...
8826650 Exhaust gas treatment method and device for internal combustion engine  
An exhaust gas treatment device for preventing a large quantity of unburned HC components from being released to the outside until a diesel oxidation catalyst reaches an activation temperature...
8826647 Electrically heated filter regeneration methods and systems  
A method of regenerating a particulate filter is provided. The method includes estimating a stress level of the particulate filter; and selectively controlling current to a heater of the...
8826649 Assembly for mixing liquid within gas flow  
An assembly for mixing liquid within a gas flow includes a hollow conduit that is configured for containing a flow of gas and liquid droplets. The assembly also includes multiple spaced blades and...
8828342 DPF energy conservation  
An exhaust gas treatment system for treating an exhaust gas. The exhaust gas treatment system includes a first section, a bypass section, and a common second section. The first section may include...
8820058 System, method, and apparatus for determining solid storage media quality for a NOx reductant  
A system and method includes an exhaust aftertreatment system for an internal combustion engine having a reductant stored in a solid storage media. The reductant is released by heating the solid...
8820050 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...
8820049 Method to reduce engine emissions for an engine capable of multi-stroke operation and having a catalyst  
A method to control valves in a cylinder operating in a multi-stroke cylinder mode. Valves are controlled to improve engine emissions as operating conditions vary.
8820051 Vehicle oxidation catalyst efficiency model for adaptive control and diagnostics  
A vehicle includes a fuel tank, an internal combustion engine, an oxidation catalyst, a regenerable particulate filter in fluid communication with an outlet side of the oxidation catalyst, and a...
8820468 Dump truck  
A dump truck includes a cab being located behind an engine compartment in which an engine is enclosed, a body being located behind the cab, and an exhaust aftertreatment device being adapted to...
8820053 Method for operating a delivery device for a reducing agent and motor vehicle having a delivery device  
A method for operating a reducing agent delivery device having a liquid reducing agent tank, an injector dispensing reducing agent into an exhaust treatment device, an internal combustion engine...
8820052 Liquid reductant system and method for operation of the liquid reductant system  
A liquid reductant injection system is provided. The liquid reductant injection system includes a storage tank housing a reductant solution, a return conduit extending into the storage tank, the...
8820048 System and method for detecting pollution by poisonous material for air exhauster of vehicle  
A system for detecting pollution by a poisonous material for an air exhauster of a vehicle may include a temperature sensor provided to the flow line of an exhaust gas and having a catalyst...