Systems and methods for managing ammonia slip in an aftertreatment system

A method comprising:

• receiving, by a controller coupled to an aftertreatment system including a catalyst, temperature data indicative of a temperature proximate to an inlet for the aftertreatment system;
• determining, by the controller, based on the temperature data regarding the temperature proximate to the inlet for the aftertreatment system, a temperature of the catalyst after a predetermined duration subsequent to the received temperature data;
• receiving, by the controller, reductant information regarding an estimate of stored reductant in a portion of the aftertreatment system;
• determining, by the controller, that the received reductant information regarding the estimate of stored reductant satisfies a threshold reductant value, the threshold reductant value corresponding with the temperature of the catalyst;
• and
• adjusting, by the controller, during the predetermined duration, reductant storage in the aftertreatment system based on the received reductant information satisfying the threshold reductant value.

A processing circuit structured to manage reductant slip in an aftertreatment system, the processing circuit comprising:

• one or more processors;
• and
• one or more memory devices coupled to the one or more processors, the one or more memory devices storing instructions that, when executed by the one or more processors, cause the one or more processors to:
• receive temperature data indicative of a temperature proximate to an inlet for the aftertreatment system;
• determine, based on the temperature data regarding the temperature proximate to the inlet for the aftertreatment system, a temperature of a catalyst after a predetermined duration subsequent to the received temperature data;
• receive reductant information regarding an estimate of stored reductant in a portion of the aftertreatment system;
• determine that the received reductant information regarding the estimate of stored reductant satisfies a threshold reductant value, the threshold reductant value corresponding with the temperature of the catalyst;
• and
• adjust, during the predetermined duration, reductant storage in the aftertreatment system based on the received reductant information satisfying the threshold reductant value.