Control device and method for controlling an exhaust gas aftertreatment system
AssigneeScania CV AB
InventorsBjörn Westerberg, Ulf Nylén, Astrid Simovits
Life of this patent
Estimating the term…
Abstract
A control device and a method for controlling an exhaust gas aftertreatment system comprising a diesel particulate filter is provided. The method comprises a step of, in response to a determination that a temperature of an exhaust gas entering the diesel particulate filter is equal to or below 325° C., controlling a NOx concentration of the exhaust gas entering the diesel particulate filter to be equal to or less than 600 ppm. An exhaust gas aftertreatment system as well as a vehicle comprising the control device are also described.
Claims16
A method, performed by a control device, for controlling an exhaust gas aftertreatment system comprising a diesel particulate filter,
- the method comprising a step of:
- in response to a determination that a temperature of an exhaust gas entering the diesel particulate filter is equal to or below 325°° C., controlling a NOx concentration of the exhaust gas entering the diesel particulate filter to be at least 200 ppm and equal to or less than 600 ppm.
A computer program product comprising computer program code stored on a non-transitory computer-readable medium, said computer program code configured for controlling an exhaust gas aftertreatment system comprising a diesel particulate filter, said computer program code comprising instructions which, when executed by a control device, cause the control device to perform the following operation:
- in response to a determination that a temperature of an exhaust gas entering the diesel particulate filter is equal to or below 325° C., controlling a NOx concentration of the exhaust gas entering the diesel particulate filter to be at least 200 ppm and equal to or less than 600 ppm.
A control device configured to control an exhaust gas aftertreatment system, the exhaust gas aftertreatment system comprising a diesel particulate filter,
- wherein the control device is configured to, in response to a determination that a temperature of an exhaust gas entering the diesel particulate filter is equal to or below 325° C., controlling a NOx concentration of the exhaust gas entering the diesel particulate filter to be at least 200 ppm and equal to or less than 600 ppm.
An exhaust gas aftertreatment system comprising a diesel particulate filter and a control device, wherein the control device is configured to, in response to a determination that a temperature of an exhaust gas entering the diesel particulate filter is equal to or below 325° C., controlling a NOx concentration of the exhaust gas entering the diesel particulate filter to be at least 200 ppm and equal to or less than 600 ppm.
A vehicle comprising the control device configured to control an exhaust gas aftertreatment system, the exhaust gas aftertreatment system comprising a diesel particulate filter,
- wherein the control device is configured to, in response to a determination that a temperature of an exhaust gas entering the diesel particulate filter is equal to or below 325° C., controlling a NOx concentration of the exhaust gas entering the diesel particulate filter to be at least 200 ppm and equal to or less than 600 ppm.
Dependencies are inferred from the claim text.