Systems and methods for forecasting aftertreatment temperatures over a horizon

A method comprising:

• receiving engine operational data indicative of at least one engine operating condition regarding operation of an engine;
• determining, based on the engine operational data, an estimated exhaust temperature emitted from the engine;
• generating, based on the estimated exhaust temperature and a finite time horizon, a forecasted exhaust temperature;
• generating a first inlet temperature profile corresponding to a first aftertreatment system component of an exhaust aftertreatment system based on the forecasted exhaust temperature;
• and
• generating, based on the first inlet temperature profile, a second inlet temperature profile corresponding to a second aftertreatment system component that is downstream of the first aftertreatment system component.

A non-transitory computer-readable medium storing instructions that, when executed by at least one processor of a controller, cause the controller to perform operations comprising:

• receiving engine operational data comprising a first engine operating condition;
• determining that a relevant portion of model data of a model is accessible by a processor of the controller via a memory comprising a flash storage, a random access memory (RAM) and a multi-level cache based on the relevant portion of the model data being stored in the RAM or in the multi-level cache;
• determining that the relevant portion of the model data is not accessible by the processor based on determining that the relevant portion of the model data is stored in the flash storage;
• and
• moving the relevant portion of the model data to a lower memory level;
• and
• generating at least one of an estimated temperature value or a forecasted temperature value based on the model and using the relevant portion of the model data.