Carbon deposit amount calculation method of diesel engine particulate filter
A particle trap and calculation method technology, which is applied to machines/engines, mechanical equipment, engine components, etc., can solve the problems of inaccurate identification of DPF carbon deposits, and reduce the deterioration of fuel economy and the problem of DPF regeneration and burning. Risks, effects of accurate identification of results
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[0032] The preferred embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0033] In this embodiment, by receiving the DOC upstream temperature, DPF upstream temperature, NOx mass flow rate, exhaust gas volume flow rate and mass flow rate, Soot mass flow rate, engine operating mode, regeneration state, exhaust Oxygen content and other parameters, according to the parameters of the engine exhaust system, judge the current state of the engine, the current state includes carbon deposition state, passive regeneration state, active regeneration state, spontaneous regeneration state, and calculate the accumulated carbon deposition in the DPF.
[0034] Engine operation mode includes normal operation mode (that is, carbon deposition state) and regeneration mode, wherein the regeneration mode includes three regeneration states, which are passive regeneration state, active regeneration state, and spontaneous regeneration sta...
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