Hydrocarbon injection control method

The invention discloses a hydrocarbon injection control method, relates to the technical field of engine control, and solves the technical problem that the requirement for DPF regeneration cannot be met when a hydrocarbon nozzle injects fuel oil at a fixed frequency. The method comprises the steps t...

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Bibliographische Detailangaben
Hauptverfasser:	ZHU WANDONG, JIANG ZENGHUI, LIU HONGQI, CHEN TURUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	The invention discloses a hydrocarbon injection control method, relates to the technical field of engine control, and solves the technical problem that the requirement for DPF regeneration cannot be met when a hydrocarbon nozzle injects fuel oil at a fixed frequency. The method comprises the steps that different hydrocarbon nozzle injection frequencies are calibrated according to different oil pressures of a hydrocarbon injection system, and an injection frequency pulse spectrum is obtained; on the basis of different hydrocarbon nozzle injection frequencies, hydrocarbon nozzle duty ratios corresponding to the hydrocarbon nozzle injection frequencies are calibrated according to oil quantity requirements and oil pressure, and corresponding hydrocarbon nozzle duty ratio requirement pulse spectrums are obtained; the actual oil pressure of the hydrocarbon injection system is obtained, the injection frequency pulse spectrum is inquired according to the actual oil pressure to obtain the corresponding hydrocarbon noz