| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust gas treatment method for accurately detecting an amount of soot which is slipped from a trailing end of a soot filter and for using the detected amount to accurately detect damage of the soot filter. <P>SOLUTION: The exhaust gas treatment method has a soot sensor on which a part of soot slipped and exhausted from the trailing end of a diesel soot filter is attached and which generates a signal. The method includes steps of: computing a sensor trap soot model amount that is trapped on the soot sensor, in a condition that the diesel soot filter is operated normal, according to an engine operating condition and a variation thereof; using a real signal of the soot sensor to compute a sensor trap soot real amount that is attached on the soot sensor; and comparing the sensor trap soot model amount and the sensor trap soot real amount to determine a condition of the diesel soot filter. <P>COPYRIGHT: (C)2013,JPO&INPIT |
