LOCATING PIN

摘要

Systems and methods for tracking and indicating a status for the deliverable reductant, such as ammonia, in a canister used in an exhaust gas after-treatment system are disclosed. An on-board system provides a visual display to indicate either generally or specifically the fill-status of each of a plurality of loaded ammonia canisters, while a separate canister system is able to be periodically updated while on-line and, using a memory device such as a RFID tag, carry the updated fill-status even when it is removed from the vehicle system. The residing memory device can be read off-line to determine the ammonia fill-status. Metering of the ammonia flow allows real-time monitoring and updating of the canister status.

主权项

1. A reductant delivery system comprising:
at least one canister containing a supply of a reductant material; an exhaust gas after-treatment system having an injector fluidly coupled to the at least one canister; a controller for metering flow of reductant to the injector; a status indicator electronically connected to the controller for indicating a status of the at least one canister.