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Improved control method and apparatus for an oxygen pump cell of a sensor in an internal combustion engine or an exhaust gas aftertreatment system of the engine
Improved control method and apparatus for an oxygen pump cell of a sensor in an internal combustion engine or an exhaust gas aftertreatment system of the engine
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机译:用于内燃机或发动机的排气后处理系统中的传感器的氧气泵单元的改进的控制方法和设备
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摘要
It is described a method for controlling an oxygen pump cell of a sensor in an internal combustion engine or in the exhaust gas after treatment system of such an engine, comprising the step of adding, to a feedback control of the current in the pump cell, a further feed-forward control path estimating an expected oxygen pump current on the basis of characteristics of the exhaust gas composition calculated from engine operation data.
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