METHOD FOR DETECTING A CHANGE OF REDUCING AGENT CANISTER IN AN SCR SYSTEM, EXHAUST LINE AND VEHICLE

摘要

The invention relates to a method for detecting a change of reducing agent canister in an SCR system (10) comprising a plurality of canisters (12) and pipes (14) connecting the canisters to an injector, characterized in that the method involves regulating the pressure within a first canister feeding the pipes, increasing the pressure in a second canister and detecting that the pipes (14) are being supplied from the second canister by detecting that a pressure threshold in the pipes has been crossed. The invention also relates to an exhaust line and to a vehicle. This invention makes it possible to detect a change of active canister using pipe pressure information only.