Device for evaluating catalyst performance deterioration
摘要
A device for evaluating catalyst performance deterioration comprising an air-fuel ratio sensor and a temperature sensor. The degree of catalyst performance deterioration per unit time is calculated based on the concentration of oxygen in the exhaust gas and the temperature of the catalyst. The deterioration of the catalyst is evaluated on the basis of the accumulated value of the degree of catalyst performance deterioration per unit time. <IMAGE>
申请公布号
EP0786586(A3)
申请公布日期
1997.10.29
申请号
EP19970106726
申请日期
1997.04.23
申请人
TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人
TANAHASHI, TOSHIO;SANADA, MASAKATSU;MATSUNAGA, SHINICHI;SOBUKAWA, HIDEO;KONOMI, ICHIRO;SUZUKI, TADASHI;YOKOTA, KOJI