Patent ID: 8720187

Claim:
An exhaust diagnostic control system, comprising: a test enabling module comprising a processor coupled to a memory, the test enabling module configured for executing a process for assessing a reliability of an estimated level of reductant load on an after-treatment component, and, based on said reliability of estimated levels of reductant load on the after-treatment component, selectively facilitating disablement of a subsequent test for determining an efficiency of NOx reduction in the after-treatment component; an exhaust gas temperature management module comprising a processor coupled to a memory, the exhaust gas temperature management module, in communication with the test enabling module and 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, when the test enabling module deems a reliability of an estimated level of reductant load on an after-treatment component to be within a range of acceptability, 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.