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发明授权
CN103967569B 氧化催化转化器老化程度的确定 有权

氧化催化转化器老化程度的确定
摘要：
本发明涉及氧化催化转化器老化程度的确定。提供一种用于确定内燃机的排气系统中氧化催化转化器的老化程度的方法。该方法包括：在排气流中产生一氧化碳水平的暂时增加；监测随后的氧化作用；和确定作为所测量氧化作用的函数的所述氧化催化转化器的老化程度。该方法进一步包括测量氧化过程中的温度上升和将所述转化器的老化与温度上升的速度相关联。
摘要（英）：

A method for determining a degree of aging of an oxidizing catalytic converter in an exhaust system of an internal combustion engine is provided. The method comprises generating a temporary increase in carbon monoxide levels in an exhaust gas stream, monitoring subsequent oxidizing action and determining a degree of aging of the oxidizing catalytic converter as a function of the measured oxidizing action. The method further comprises measuring a temperature rise during oxidation and correlating the aging of the converter to the speed of temperature rise.

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