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IDENTIFYING AMMONIA SLIP CONDITIONS IN A SELECTIVE CATALYTIC REDUCTION APPLICATION
IDENTIFYING AMMONIA SLIP CONDITIONS IN A SELECTIVE CATALYTIC REDUCTION APPLICATION
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机译:在选择性催化还原应用中识别氨滑移条件
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摘要
A system includes a filtering module that filters a first signal that indicates an amount of nitrogen oxides (NOx) in exhaust gas upstream from a catalyst, and that filters a second signal that indicates amounts of NOx and ammonia (NH3) in exhaust gas downstream from the catalyst. A slip determination module determines whether NH3 is present in exhaust gas downstream from the catalyst based on a frequency response of the first and second signals.
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