Patent ID: 8156735

Claim:
A method for control of an exhaust-gas treatment installation of an internal combustion engine, wherein the installation is provided with catalytic oxidation means, a particulate filter disposed downstream from the catalytic oxidation means, means for measuring a temperature T mes of heated gases upstream from the particulate filter and a reformer for producing a reformate, the method comprising: determining a calculated flow Q ref — calc of reformate according to a predetermined setpoint temperature T set of the heated gases upstream from the particulate filter, determining a difference coefficient α according to a difference between the setpoint temperature T set and the measured temperature T mes upstream from the particulate filter, comparing the difference coefficient α to a predetermined threshold value, when the difference coefficient α is greater than or equal to the predetermined threshold value, dividing the calculated flow Q ref — calc of reformate by the difference coefficient α to calculate a setpoint flow rate Q ref — set of reformate to be injected into the exhaust gases, when the difference coefficient α is less than the predetermined threshold value, setting the setpoint flow rate Q ref — set of reformate to be injected into the exhaust gases equal to the calculated flow Q ref — calc of reformate, and controlling the reformer with the setpoint flow Q ref — set of reformate to inject the reformate into the exhaust gases upstream from the catalytic oxidation means to obtain the predetermined setpoint temperature T set of the heated gases upstream from the particulate filter to regenerate the particulate filter by raising the temperature of the gases.