SYSTEM AND METHOD FOR SCR INDUCEMENT

摘要

A system and method of inducing proper operation of a diesel engine exhaust after-treatment system employing SCR technology monitors components to detect a fault condition representing one of a DEF level fault, a DEF quality fault, and a tampering fault, activates a trigger event indicator in response to detecting the fault condition. The trigger event indicator provides an indicium to an operator of the presence of the fault condition. The system and method also activates an inducement event indicator in response to activating the trigger event indicator. The inducement event indicator provides an indicium to the operator that the engine will be shut down if the fault condition is not addressed within a predetermined time period. The system and method causes shutdown of the engine when the fault condition is not addressed within the predetermined time period.

主权项

1. A method of operating an exhaust after-treatment system, including:
monitoring the system to detect a first fault condition representing one of a DEF level fault, a DEF quality fault, and a tampering fault; indicating the presence of the first fault condition in response to detecting the first fault condition; indicating that a shutdown sequence will be performed if the first fault condition is not addressed within a first time period; performing the shutdown sequence when the first fault condition is not addressed within the first time period; and monitoring the system to detect the first fault condition for a second time during a second time period.