Abstract: The reduction of a NOx trap upon engine shutdown is disclosed. One disclosed embodiment comprises detecting an engine shutoff, determining an engine stop position, and creating a reductive environment in the exhaust conduit upstream of the lean NOx trap at a time based upon the determined engine stop position. The creation of a reductive environment in the exhaust conduit upstream of the lean NOx trap may help to at least partially reactivate the lean NOx trap during engine shutoff.

Abstract: A system and method may be provided for operating a system having an engine with an emission control system, the emission control system including a lean NOx trap and a particulate filter, where after lean exhaust gas air-fuel ratio regeneration of the particulate filter at an elevated regeneration temperature, a rich or intermittently rich exhaust air-fuel ratio is provided for a duration lasting until LNT temperature falls to a minimum threshold, where said rich or intermittently rich operation reactivates catalysts in the LNT and reverses deactivation caused by the elevated temperature lean operation associated with previous particulate filter regeneration.

Abstract: A method is provided for operating an aftertreatment device coupled downstream of an internal combustion engine, the aftertreatment device including a urea-based selective catalyst reduction (SCR) catalyst. The method comprises establishing a threshold urea deposit accumulation for regeneration of the SCR catalyst; determining that the threshold urea deposit accumulation in the SCR catalyst has been met; and in response to the determination, regenerating the SCR catalyst by maintaining the SCR catalyst at a predetermined regeneration temperature for a predetermined time interval.

Abstract: The present invention discloses a method and apparatus for estimating vanish points from an image, computer program and storage medium thereof. One of the method for detecting the vanishing points from an image according to the present invention comprising a dividing step for dividing the image into small patches; a first detecting step for detecting each patch's local orientations; a composing step for composing lines of pencils based on the local orientations detected in the first detecting step; and a first computing step for computing at least one vanishing point based on the lines of pencils composed in said composing step. On the basis of the vanishing points found by the present invention, the perspective rectification on a document image can be executed accurately and fastly.

Abstract: An exhaust system, comprising of a first emission control system in the exhaust system, said emission control system having a at least a first region and a second region, said second region physically segregated from the first region and at least partially downstream of the first region, said first region including a precious metal component dispersed on a metal oxide support that stores NOx and said second region including a precious metal component and a NOx sorbent component dispersed on a metal oxide support, where said second region includes more of said NOx sorbent component than said first region; and a second emission control system including an SCR catalyst coupled downstream of said first emission control system.

Abstract: The present application relates to a method, an apparatus and a storage medium for locating QR codes. For automatically locating a plurality of QR codes in image of any size, the invention provides an apparatus for locating at least one QR code in an image, comprising: characteristic ratio detection means for detecting the potential QR code location symbol areas by carrying out a plurality of detections for detecting the characteristic ratio of the QR code; critical edge detection means for detecting the critical edges of the potential QR code location symbol areas so that the false areas are excluded; location symbol grouping means for matching the detected QR code location symbol areas into potential QR codes; and verification means for excluding the false QR codes. The invention also provides a corresponding method for locating at least one QR code.

Abstract: An exhaust aftertreatment system for an internal combustion engine is disclosed which mitigates deleterious poisoning of a catalytic converter or exhaust gas oxygen sensor by phosphorus containing species.

Abstract: A system and method is disclosed for operating an internal combustion engine disposed in a hybrid vehicle, in which engine operation is selected to provide secondary vehicular functions, such as cabin heating, cabin cooling, and exhaust aftertreatment of exhaust components.

Abstract: An alumina-based lean NOx trap system for use in a HCCI engine exhaust is provided which includes at least one alumina-based lean NOx trap comprising a catalyst, an alumina NOx absorbent material, and optionally, from 0 to about 4 wt % of an alkaline earth metal oxide; and a conventional three-way catalyst. The lean NOx trap system substantially oxidizes HC and CO and converts at least a portion of NOx contained in the exhaust gas to N2 at a temperature between about 150° C. to about 250° C. in HCCI mode. The system also effectively removes HC, CO and NOx at high temperature when the engine is in SI mode (stoichiometric conditions). The alumina-based lean NOx trap in the system also undergoes efficient desulphurization and maintains its activity with extended use.

Abstract: An alumina-based lean NOx trap system for use in a lean burn engine such as a diesel engine is provided which includes at least one alumina-based lean NOx trap comprising a catalyst, an alumina NOx absorbent material, and optionally, from 0 to about 4 wt % of an alkaline earth metal oxide. The system preferably includes at least a first alumina-based lean NOx trap, and a second lean NOx trap which is positioned downstream from the first lean NOx trap in an engine exhaust. The second lean NOx trap may comprise an alumina-based trap or a conventional lean NOx trap. The lean NOx trap system converts at least a portion of NOx contained in the exhaust gas to N2 at a temperature between about 150° C. to about 500° C. The alumina-based lean NOx trap system also undergoes efficient desulphurization and maintains its activity with extended use.

Abstract: The present application relates to a method, an apparatus and a storage medium for locating QR codes. For automatically locating a plurality of QR codes in image of any size, the invention provides an apparatus for locating at least one QR code in an image, comprising: characteristic ratio detection means for detecting the potential QR code location symbol areas by carrying out a plurality of detections for detecting the characteristic ratio of the QR code; critical edge detection means for detecting the critical edges of the potential QR code location symbol areas so that the false areas are excluded; location symbol grouping means for matching the detected QR code location symbol areas into potential QR codes; and verification means for excluding the false QR codes. The invention also provides a corresponding method for locating at least one QR code.

Abstract: An exhaust gas after-treatment system having a NOx storage material and a separate HC and CO oxidation section, such oxidation section having an oxidation catalyst substantially free of the NOx storage material.

Abstract: A method for controlling torque in an internal combustion engine to cause an increase in temperature in an exhaust aftertreatment device is disclosed. One group cylinders feed exhaust gases to one exhaust aftertreatment device and another group of cylinders feed exhaust gases to another exhaust aftertreatment device. By operating the groups of cylinders at different operating conditions, the desired temperature in one of the exhaust aftertreatment devices can be achieved while also providing driver demanded torque.

Abstract: A system and method for delivering reductant to a lean NOx catalyst receiving exhaust gases from an internal combustion engine operating at a lean air-fuel ratio in disclosed. Reductant supply is based on an amount of reductant stored within the catalyst. Furthermore, reductant is supplied under prescribed conditions including an exhaust gas concentration upstream of the catalyst of less than 25 ppm NOx or the catalyst at a temperature greater than 300° C.

Abstract: A system and method for providing reductant to a lean NOx catalyst, when the temperature in the lean NOx catalyst is greater than 300° C., is disclosed. After the reductant is supplied under these conditions, the NOx conversion efficiency of the lean NOx catalyst in the 140-250° C. temperature range is increased.

Abstract: An exhaust aftertreatment system for an internal combustion engine is disclosed which mitigates deleterious poisoning of a catalytic converter or exhaust gas oxygen sensor by phosphorus containing species.

Abstract: An exhaust aftertreatment system for an internal combustion engine is disclosed which mitigates deleterious poisoning of a catalytic converter or exhaust gas oxygen sensor by phosphorus containing species.

Abstract: A system and method for providing operating conditions that provide higher efficiency NOx reduction in a lean NOx catalyst coupled to a lean-burning internal combustion engine. A catalyst containing reductant is caused to attain a temperature greater than 300° C. After a duration of about 10 seconds at the elevated temperature, the NOx conversion efficiency of the catalyst is increased in the 140-250° C. temperature range.

Abstract: A method and system for controlling combustion mode in an internal combustion engine is disclosed. A method for controlling a multi-cylinder internal combustion engine includes operating a portion of the cylinders according to a first combustion mode and operating a second portion of the cylinders according to a second, different combustion mode. The net torque produced by the cylinders equals driver demanded torque. By this invention, a first combustion mode, which has a desirable combustion characteristic such as high fuel economy or low emissions, but which cannot provide driver demanded torque if used in all cylinders, can be used in combination with a second combustion mode, thereby meeting driver demand for torque and gleaning the benefits of the first combustion mode.

Abstract: A method for controlling torque in an internal combustion engine to cause an increase in temperature in an exhaust aftertreatment device is disclosed. One group cylinders feed exhaust gases to one exhaust aftertreatment device and another group of cylinders feed exhaust gases to another exhaust aftertreatment device. By operating the groups of cylinders at different operating conditions, the desired temperature in one of the exhaust aftertreatment devices can be achieved while also providing driver demanded torque.