Patent ID: 8869513

Claim:
An exhaust diagnostic control system, comprising: a control module comprising a processor coupled to a memory, the control module configured for identifying a risk of potential future NOx deviation in an after-treatment component; a test enabling module comprising a processor coupled to a memory, the test enabling module configured for executing a process for depleting a reductant load, and subsequently establishing a known concentration of reductant, on the after-treatment component following identification of the risk of potential future NOx deviation, rather than following confirmation of an actual NOx deviation; an exhaust gas temperature management module comprising a processor coupled to a memory, the exhaust gas temperature management module configured for selectively adjusting a temperature of the after-treatment component to a predetermined temperature range using intrusive exhaust gas temperature management; and a component management module comprising a processor coupled to a memory, the component management module configured for executing, after completion of the process for depleting a reductant load and subsequently establishing a known concentration of reductant on the after-treatment component, a test for determining a reduction efficiency associated with the after-treatment component, the test for determining a reduction efficiency comprising determining a NOx reduction efficiency of the after-treatment component.