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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...
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...