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monitoring for nox storage traps and abgasreinigungsvorrichtung for carrying out this process
monitoring for nox storage traps and abgasreinigungsvorrichtung for carrying out this process
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机译:监测NOx储存阱和abgasreinigungsvorrichtung是否执行此过程
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摘要
A method and apparatus is provided for monitoring the operation of a NOx storage catalytic converter in the exhaust stream of an internal combustion engine. The NOx content of the gas stream upstream and downstream of the catalytic converter is measured and used to determine storage efficiency. This is compared to a threshold value, and if the threshold value is not met a regeneration process is performed. The storage value is measured after regeneration to determine if the catalytic converter is faulty.
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