Patent Document ID: 10036297
Application ID: 15217219
Patent Flag: 1

Claim One:
1. A method comprising: accessing, by a controller, a set of one or more combustion parameters; accessing a state space set of parameters comprising an engine speed, an injection quantity, or a start time of injection; determining, using the controller, a steady state estimated NO x value based on a steady state model and the accessed set of one or more combustion parameters; selecting a transient model from a plurality of stored transient models based on the state space set of parameters; determining, using the controller, a NO x estimation correction value based on the selected transient model and the accessed set of one or more combustion parameters; calculating, using the controller, a final estimated NO x value based on the determined steady state estimated NO x value and the determined NO x estimation correction value; and outputting the final estimated NO x value as a parameter value to an aftertreatment system component or an engine component.