Patent ID: 7572305
Filing Date: 2009-08-11
Classification: F01N,F02D,Y02T,Y10S

Abstract:
1. An exhaust emission control apparatus for internal combustion engines comprising: a particulate filter for filtering particulate matter from the exhaust of the internal combustion engine; at least one temperature sensor for detecting the temperature of the exhaust; and an evaluation unit for evaluating the detected temperature; the temperature sensor being positioned inside the particulate filter to detect the temperature of the exhaust inside the particulate filter wherein the evaluation unit is operable to switch the particulate filter into a regeneration operating mode during the operation of the internal combustion engine in order to burn off the particulate mass (m) that has accumulated in the particulate filter during a preceding operation of the internal combustion engine, this switch being executed once the accumulated particulate mass has exceeded a predetermined particulate mass threshold (m wherein the evaluation unit is operable to use a maximum temperature (T