EXHAUST PURIFICATION CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE
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United States of America Patent
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Apr 27, 2015
filing date -
May 22, 2014
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Abstract
An engine includes a GPF disposed in an exhaust pipe, and the GPF removes, by burning, a captured PM to regenerate a capturing function. The GPF includes a catalyst layer for facilitating GPF regeneration. An ECU determines whether the catalyst layer in the GPF is deteriorated. If the catalyst layer is deteriorated, the ECU executes deterioration recovering control of raising a temperature of the GPF to a predetermined temperature or more and of making an atmosphere of the exhaust gas supplied to the GPF lean.
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