SYSTEM FOR PREVENTING ACCUMULATION OF UNBURNED HYDROCARBONS IN LINE OF EXHAUST GAS AFTER-TREATMENT SYSTEM OF INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To prevent accumulation of unburned hydrocarbons in a line of exhaust gas after-treatment system (ATS) of an internal combustion engine comprising at least one devise for reduction of pollutant emissions.SOLUTION: The exhaust gas after treatment system is devoid of any pre-catalyst. Continuous estimation of a mass of unburned hydrocarbons stored at least in the device is performed for reduction of the pollutant emissions so as to activate a strategy for accelerating the heating of the exhaust line (ATS) when the mass of unburned hydrocarbons exceeds a predefined threshold.