Abstract: Methods and systems are provided for adjusting a regeneration scheme in response to ageing of a first catalyst and a second catalyst. In one example, a method may include determining a first ageing of the first catalyst and a second ageing of the second catalyst and updating factors of the regeneration scheme based on the first ageing and the second ageing.

Abstract: Methods and systems are provided for an aftertreatment system. In one example, a method comprises regenerating a NOx trap during an engine shut-down event. The method further comprises reversing a direction of flow of a gas through a HP-EGR passage during the regenerating.

Abstract: Methods and systems are provided for a particulate filter comprising a pretreatment. In one example, a method may include applying a pretreatment to an unused particulate filter, wherein the particulate filter is subjected to incomplete oxidation conditions following application of the pretreatment.

Abstract: Methods and systems are provided for an aftertreatment system. In one example, a method comprises regenerating a NOx trap during an engine shut-down event. The method further comprises reversing a direction of flow of a gas through a HP-EGR passage during the regenerating.

Abstract: Methods and system are provided for an arrangement having a combustion engine producing an exhaust gas flow, and an exhaust system connected to the combustion engine for receiving the exhaust gas flow, having a particle filter as exhaust gas aftertreatment device, and a feed device positioned to introduce a micro-organism capable of breaking down carbon-containing compounds directly to an exhaust passage receiving the exhaust gas flow.

Abstract: Methods and systems are provided for adjusting a regeneration scheme in response to ageing of a first catalyst and a second catalyst. In one example, a method may include determining a first ageing of the first catalyst and a second ageing of the second catalyst and updating factors of the regeneration scheme based on the first ageing and the second ageing.

Abstract: An arrangement of an internal combustion engine with at least one first and one second nitrogen oxide storage catalytic converter is provided, wherein the first nitrogen oxide storage catalytic converter is arranged within a low-pressure exhaust gas recirculation circuit. A method for operating the arrangement is furthermore provided, wherein the nitrogen oxide storage catalytic converters can be used for the production of ammonia under operating conditions with a high load by providing rich exhaust gas conditions.

Abstract: Embodiments for regeneration a particulate filter in a motor vehicle having a self-control mode for the autonomous control of a drive mode and having a diesel particulate filter disposed in the exhaust system of a diesel engine of the motor vehicle are provided. In one example, a method for protecting the diesel particulate filter from overheating and premature aging comprises: starting the self-control mode, starting/verifying a regeneration process of the diesel particulate filter with combustion of the soot particles adsorbed on the diesel particulate filter, and monitoring a temperature of the diesel particulate filter and/or of the exhaust gas directed through the diesel particulate filter during the regeneration process. Depending on a monitoring result of the monitoring, a control for the self-control mode of the motor vehicle can be adjusted.

Abstract: The present subject matter relates to a method and a treatment system monitor for monitoring an engine exhaust after-treatment system containing more than one Lean NOx Traps (LNT). The method includes receiving an exhaust gas of a desired air-fuel ratio upstream of a respective LNT. The LNT is further regenerated using a richer than stoichiometric exhaust air-fuel ratio and subsequently an air-fuel ratio received downstream of the LNT is evaluated. Further, a working state of a respective LNT is determined based on the monitoring of the air-fuel ratio and oxygen level upstream and downstream of the LNT.

Abstract: A method for controlling exhaust gas aftertreatment in an exhaust gas aftertreatment system having at least one nitrogen oxide storage catalyst and at least one catalyst for selective catalytic reduction is provided, wherein, in phases of a high load, a combustion engine is operated with a substoichiometric fuel/air mixture, and nitrogen oxides in the exhaust gas are reduced in the nitrogen oxide storage catalyst to ammonia, which is stored in the catalyst for selective catalytic reduction, and, when the storage capacity of the catalyst for selective catalytic reduction is exceeded, the combustion engine is operated with a superstoichiometric fuel/air mixture, thus allowing nitrogen oxides in the catalyst for selective catalytic reduction to be reduced by the stored ammonia.

Abstract: Methods and systems are provided for an exhaust gas aftertreatment system. In one example, a method may include limiting ammonia desorption from a catalyst in response to an increase in driver demand by activating an electric motor.

Abstract: Methods and systems are provided for a particulate filter comprising a pretreatment. In one example, a method may include applying a pretreatment to an unused particulate filter, wherein the particulate filter is subjected to incomplete oxidation conditions following application of the pretreatment.

Abstract: Methods and system are provided for an arrangement having a combustion engine producing an exhaust gas flow, and an exhaust system connected to the combustion engine for receiving the exhaust gas flow, having a particle filter as exhaust gas aftertreatment device, and a feed device positioned to introduce a micro-organism capable of breaking down carbon-containing compounds directly to an exhaust passage receiving the exhaust gas flow.

Abstract: An arrangement of an internal combustion engine with at least one first and one second nitrogen oxide storage catalytic converter is provided, wherein the first nitrogen oxide storage catalytic converter is arranged within a low-pressure exhaust gas recirculation circuit. A method for operating the arrangement is furthermore provided, wherein the nitrogen oxide storage catalytic converters can be used for the production of ammonia under operating conditions with a high load by providing rich exhaust gas conditions.

Abstract: Methods and systems are provided for an exhaust gas aftertreatment system. In one example, a method may include limiting ammonia desorption from a catalyst in response to an increase in driver demand by activating an electric motor.

Abstract: A method for controlling exhaust gas aftertreatment in an exhaust gas aftertreatment system having at least one nitrogen oxide storage catalyst and at least one catalyst for selective catalytic reduction is provided, wherein, in phases of a high load, a combustion engine is operated with a substoichiometric fuel/air mixture, and nitrogen oxides in the exhaust gas are reduced in the nitrogen oxide storage catalyst to ammonia, which is stored in the catalyst for selective catalytic reduction, and, when the storage capacity of the catalyst for selective catalytic reduction is exceeded, the combustion engine is operated with a superstoichiometric fuel/air mixture, thus allowing nitrogen oxides in the catalyst for selective catalytic reduction to be reduced by the stored ammonia.

Abstract: The present subject matter relates to a method and a treatment system monitor for monitoring an engine exhaust after-treatment system containing more than one Lean NOx Traps (LNT). The method includes receiving an exhaust gas of a desired air-fuel ratio upstream of a respective LNT. The LNT is further regenerated using a richer than stoichiometric exhaust air-fuel ratio and subsequently an air-fuel ratio received downstream of the LNT is evaluated. Further, a working state of a respective LNT is determined based on the monitoring of the air-fuel ratio and oxygen level upstream and downstream of the LNT.

Abstract: A method and device for regulating the speed of a motor vehicle, wherein an electronic device a) compares deceleration of a vehicle with a threshold value immediately after a driver switches off a cruise control system and b), if the deceleration exceeds the threshold value, sends a torque demand signal to a powertrain component to reduce the vehicle deceleration to the threshold value or below. The electronic device may further c) compare vehicle acceleration with a second threshold value when the driver switches off the cruise control system, and d), if the acceleration exceeds the second threshold value, send a braking demand signal to a vehicle brake to reduce the vehicle acceleration to the second threshold value or lower.

Abstract: Embodiments for regeneration a particulate filter in a motor vehicle having a self-control mode for the autonomous control of a drive mode and having a diesel particulate filter disposed in the exhaust system of a diesel engine of the motor vehicle are provided. In one example, a method for protecting the diesel particulate filter from overheating and premature aging comprises: starting the self-control mode, starting/verifying a regeneration process of the diesel particulate filter with combustion of the soot particles adsorbed on the diesel particulate filter, and monitoring a temperature of the diesel particulate filter and/or of the exhaust gas directed through the diesel particulate filter during the regeneration process. Depending on a monitoring result of the monitoring, a control for the self-control mode of the motor vehicle can be adjusted.

Abstract: A method and device for regulating the speed of a motor vehicle, wherein an electronic device a) compares deceleration of a vehicle with a threshold value immediately after a driver switches off a cruise control system and b), if the deceleration exceeds the threshold value, sends a torque demand signal to a powertrain component to reduce the vehicle deceleration to the threshold value or below. The electronic device may further c) compare vehicle acceleration with a second threshold value when the driver switches off the cruise control system, and d), if the acceleration exceeds the second threshold value, send a braking demand signal to a vehicle brake to reduce the vehicle acceleration to the second threshold value or lower.