SYSTEMS AND METHODS FOR THERMAL MANAGEMENT OF AFTERTREATMENT SYSTEMS

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 to: determine an estimated warm-up time for warming up the aftertreatment component to a target temperature via the heater; and activate the heater; characterized in that the controller is further configured to: divide the estimated warm-up time into a plurality of long time windows; determine a target temperature change rate within each long time window; divide at least one long time window of the plurality of long time windows into a plurality of short time windows; determine a target energy change rate within each short time window for achieving the target temperature change rate over the at least one long time window; determine an additional power needed from the engine for powering the heater based on a target energy of the aftertreatment component within each short time window; and transmit a signal to the engine to request the additional power needed from the engine.