A controller for thermal management of an aftertreatment system that comprises a heater and an aftertreatment component downstream of the heater, the aftertreatment system being coupled to an engine that generates an exhaust gas, the controller configured ...

Systems and methods are disclosed for diagnosing gain rationality of an NO x sensor that is downstream of a selective catalytic reduction (SCR) catalyst. Sensor diagnostics are performed while maintaining reductant dosing to the SCR catalyst.

A system including a channel; a particulate matter sensor disposed in fluid communication with the channel, the particulate matter sensor having a sensitivity that increases in response to exposure to particulate matter; and a controller coupled to the par...

A system includes an internal combustion engine producing an exhaust gas, an aftertreatment system receiving the exhaust gas, the aftertreatment system including a particulate filter positioned upstream of an SCR catalyst component, and a urea injector ope...