VIRTUAL REDUCTANT QUALITY SENSOR

摘要

An exhaust treatment system (200) is provided. The exhaust treatment system (200) may include a selective catalyst reduction (SCR) unit (108) for removing NuOmicronchi from exhaust; a reducing agent dispensing unit for providing a reducing agent to the SCR unit (108); a first NuOmicronchi sensor (202) for indicating a NuOmicronchi emission level of the exhaust prior to the SCR unit (108); a second NuOmicronchi sensor (204) for indicating a NuOmicronchi emission level of the exhaust after the SCR unit (108), wherein at least one of the first NuOmicronchi sensor (202) and the second NuOmicronchi sensor (204) is a virtual NuOmicronchi sensor; and a controller (110) configured to electronically communicate with a virtual sensor network (304) comprising a first virtual NuOmicronchi sensor (202) and a virtual reducing agent quality sensor (208) indicating a quality index of the reducing agent according to the first NuOmicronchi sensor (202) and the second NOx sensor (204).