Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Michiel J. Van Nieuwstadt0
Date of Patent
July 5, 2011
0Patent Application Number
119338290
Date Filed
November 1, 2007
0Patent Primary Examiner
Patent abstract
A method is described for controlling operation of a reductant injection system. In one example, a pump of the reductant injection system is operated at a pressure to inject reductant into an exhaust system based on voltage supplied to the pump. The method can allow operation of the reductant injection system during degradation of a pressure sensor that is used to determine reductant flow.
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