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    • 2. 发明申请
    • Control method for an exhaust gas purification system and an exhaust gas purification system
    • 废气净化系统和废气净化系统的控制方法
    • US20050223700A1
    • 2005-10-13
    • US11082824
    • 2005-03-18
    • Kouzo Abe
    • Kouzo Abe
    • F02D45/00B01D46/42B01D53/94F01N3/02F01N3/023F01N3/18F02D41/02F02D41/38F02D41/40F01N3/00
    • F02D41/029F01N3/0231F02D41/021F02D41/405F02D2041/228F02D2200/0812F02D2250/11Y02T10/44
    • In an exhaust gas purification system (1) provided with a continuous regeneration type DPF device (13) and DPF control means (30C), when a collecting quantity (ΔPm) of PM exceeds the predetermined judgment collecting quantity (ΔPm0), a number-of-regeneration-times coefficient (Rc) serving as an index of the number of regeneration times to a travel distance is compared with a predetermined judgment coefficient value (R0). When the number-of-regeneration-times coefficient (Rc) is smaller than the predetermined judgment coefficient value (R0), automatic traveling regeneration is performed and when the number-of-regeneration-times coefficient (Rc) is equal to or more than the predetermined judgment coefficient value (R0), manual regeneration is performed. Thereby, in the case of regeneration of the continuous regeneration type DPF device (13) of the exhaust gas purification system (1), it is possible to greatly decrease the frequency of manual regeneration in which a driver stops a vehicle to perform forced regeneration by a manual regeneration switch and improve the operability for the driver. Moreover, it is possible to solve the oil dilution problem due to a lot of unburned oil injected for DPF regeneration.
    • 在设置有连续再生型DPF装置(13F)和DPF控制装置(30C)的排气净化系统(1)中,当PM的收集量(DeltaPm)超过规定的判定收集量(DeltaPm 0)时, 将作为行驶距离的再生次数的指标的再生次数系数(Rc)与规定的判定系数值(R 0)进行比较。 当再生次数系数(Rc)小于预定判定系数值(R 0)时,进行自动行驶再生,并且当再生次数系数(Rc)等于或等于 超过预定判定系数值(R 0),进行手动再生。 因此,在排气净化系统(1)的连续再生型DPF装置(13)的再生的情况下,可以大大降低驾驶员停止车辆进行强制再生的手动再生的频率 手动再生开关,提高驾驶员的操作性。 此外,可以解决由于注入DPF再生的大量未燃烧油而产生的油稀释问题。