DPF MANUAL REGENERATION CONTROL DEVICE

PROBLEM TO BE SOLVED: To enable manual regeneration at necessary minimum rotating frequency corresponding to an engine individual difference.SOLUTION: A DPF manual regeneration control device is for an exhaust emission control device for an engine including: a DPF 13 provided in an exhaust passage 1...

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Bibliographische Detailangaben
Hauptverfasser: MATSUSHITA TOMOHIKO, SAKAINO MAKOTO
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To enable manual regeneration at necessary minimum rotating frequency corresponding to an engine individual difference.SOLUTION: A DPF manual regeneration control device is for an exhaust emission control device for an engine including: a DPF 13 provided in an exhaust passage 12 of an engine 11; an oxidation catalyst 14 provided upstream in the exhaust passage 12 of the DPF 13; exhaust gas temperature check means (temperature sensor 15) for checking an exhaust gas temperature upstream in the exhaust passage 12 of the oxidation catalyst 14; and manual regeneration means for the DPF 13. The DPF manual regeneration control device includes calculation means (control device 30) for calculating target speed of the engine 11 during manual regeneration performed by the manual regeneration means, on the basis of a sum of preset reference speed and a feedback correction term including individual difference adjustment amount (ΔNE) for adjusting an individual difference of the engine 11.SELECTED DRAWING: Figure 1 【課題】エンジン個体差に応じた必要最低限の回転数での手動再生を可能とする。【解決手段】DPF手動再生制御装置は、エンジン11の排気通路12に設けられたDPF13と、DPF13よりも排気通路12の上流側に設けられた酸化触媒14と、排気通路12の酸化触媒14より上流側の排ガス温を確認する排ガス温確認手段(温度センサ15)と、DPF13の手動再生手段とを備えたエンジンの排気浄化装置におけるDPF手動再生制御装置である。そして、手動再生手段の手動再生時におけるエンジン11の目標回転数を、予め設定された基準回転数と、エンジン11の個体差を調整するための個体差調整量(ΔNE)を含むフィードバック補正項との和によって演算する演算手段(制御装置30)を備える。【選択図】図1