METHOD OF CONTROLLING OPERATION OF AN EXHAUST FLUID TREATMENT APPARATUS

摘要

Method of controlling operation of an exhaust fluid treatment apparatus An exhaust flow treatment apparatus may be used to treat exhaust flow emitted by a combustion engine. The exhaust flow treatment apparatus may be configured to receive unburnt fuel for combustion therein. It may be desirable to confirm that conditions are such that the unburnt fuel is likely to combust in the exhaust flow treatment apparatus rather than passing through the exhaust flow treatment apparatus unburnt. A method of controlling operation of an exhaust flow treatment apparatus is described. The method may comprise confirming that the temperature of fluid in the exhaust flow treatment apparatus exceeds a threshold temperature before allowing unburnt fuel into the exhaust flow treatment apparatus. Furthermore, it may be desirable to confirm a particular mode of operation of the exhaust flow treatment apparatus in order to determine the appropriate quantity of fuel for burning in the exhaust flow treatment apparatus.