Patent ID: 7881853

Claim:
A method for constructing a map of temperature settings at a particulate-filter inlet, the map configured to be installed in a control unit of a diesel engine for a motor vehicle including an exhaust circuit in which is disposed a particulate filter configured to be regenerated by combustion of soot present within the filter, the regeneration being provoked by elevation of exhaust-gas temperature at the inlet of the particulate filter, the elevation being a function of the temperature setting at the particulate-filter inlet, the method comprising, for each combination associated with an instant t of regeneration and belonging to a set of combinations: (a) of a mass of soot within the particulate filter; (b) of a temperature at the outlet of the particulate filter; (c) of an air flow through the particulate filter; and (d) of a rate of combustion of the soot within the particulate filter; determining a value to be assigned to the temperature setting at the particulate-filter inlet, the value being searched for such that, after initiation of a pedal release at the instant t and regardless of a pedal-release profile chosen from among a set of pedal-release profiles, the temperature at the particulate-filter outlet remains below a maximum permissible temperature beyond which the particulate filter is susceptible to deterioration.