Controlling operation of diesel engine particulate filter by establishing presence of regeneration combustion through comparison of estimated and measured downstream filter temperatures

摘要

A control calculator (3) receives pressure and temperature data (7) from both sides of a particle filter (6) and initiates regeneration when the filter is becoming overloaded. The activation of the regeneration process is established by comparing estimated and measured temperatures downstream of the filter and the addition of heat is immediately terminated. Regeneration is monitored and if necessary reestablished for a predetermined time