Diesel engine controlling method for vehicle, involves introducing fuel in oxidation units of exhaust line of engine, and receiving measurement, of proportional probe, downstream of units

摘要

#CMT# #/CMT# The method involves introducing fuel in oxidation units (8, 10) of an exhaust line (6) of an engine of a vehicle, and receiving a measurement, of a proportional probe (12), downstream the oxidation units. The fuel is added downstream of cylinders of the engine such that a fraction of the injected fuel is not burnt in the cylinders. A measurement of another proportional probe (14) is measured upstream the oxidation units. #CMT# : #/CMT# Independent claims are also included for the following: (1) a vehicle engine (2) a vehicle comprising an engine. #CMT#USE : #/CMT# Used in a weak mixture oxidation catalysis system for controlling an engine of a vehicle (claimed). #CMT#ADVANTAGE : #/CMT# The method permits to measure the fall of oxidation efficiency with a high sensitivity, thus limiting the additional fuel quantity to be injected while improving the diagnosis of the exhaust line in a short time. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic view of an exhaust line of an engine of a vehicle. 4 : Cylinder head 6 : Exhaust line 8, 10 : Oxidation units 12, 14 : Proportional probes.