Patent ID: 8820048
Filing Date: 2014-09-02
Classification: F01N,F02D,G01N,Y02T

Abstract:
1. A system for detecting pollution by a poisonous material for an air exhauster of a vehicle, comprising: a temperature sensor provided to a flow line of an exhaust gas and having a catalyst material that causes an exothermic reaction with a pollution material in the exhaust gas; and a controller which stores a standard temperature value (Ti) of the temperature sensor and operates in such a manner that the exhaust gas is heated under control of an engine control unit when a temperature value drops by a predetermined amount from the standard temperature value (Ti), and that the catalyst material is determined to have deteriorated when a measured temperature value (Ta) after heating is less than the standard temperature value (Ti) or when a difference between the measured temperature value (Ta) and a peak temperature value (Tp) determined when S components accumulate on a catalyst of the temperature sensor is not equal to a difference between the standard temperature value (Ti) and the peak temperature value (Tp), so that the standard temperature value (Ti) is replaced with the measured temperature value (Ta).