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    • 32. 发明授权
    • ADDITIVE SUPPLY DEVICE
    • 添加剂供应装置
    • EP3051088B1
    • 2017-07-26
    • EP16152196.8
    • 2016-01-21
    • TOYOTA JIDOSHA KABUSHIKI KAISHA
    • OTA, Hirohiko
    • F01N3/20
    • F01N3/208F01N2260/024F01N2560/026F01N2560/06F01N2610/02F01N2610/11F01N2610/146F01N2900/0412F01N2900/08F01N2900/10F01N2900/1404F01N2900/1821Y02A50/2325Y02T10/24
    • An additive supply device includes an adding valve (17) and an electronic control unit (21). The adding valve (17) is configured to inject an additive into an exhaust passage (8) of an internal combustion engine (1). The electronic control unit (21) is configured to control the injection of the additive from the adding valve (17). The electronic control unit (21) is configured to execute a cooling injection control for injecting the additive from the adding valve (17) after the internal combustion engine (1) is commanded to stop such that the quantity of the injection of the additive (Q1) during the cooling injection control is larger when a temperature of exhaust gas in the exhaust passage (8) in an event of the stop command for the internal combustion engine (1) is higher than a predetermined temperature than when the temperature is lower than the predetermined temperature.
    • 添加剂供应装置包括添加阀(17)和电子控制单元(21)。 添加阀(17)构造成将添加剂注入内燃机(1)的排气通道(8)中。 电子控制单元(21)构造成控制来自添加阀(17)的添加剂的注入。 电子控制单元(21)被配置为在内燃机(1)被命令停止之后执行用于从添加阀(17)喷射添加剂的冷却喷射控制,使得添加剂(Q1)的喷射量 )大于在内燃机(1)的停止指令的情况下排气通路(8)中的排气温度高于预定温度时的温度比当温度低于 预定温度。
    • 40. 发明公开
    • DPF REGENERATION CONTROL DEVICE
    • STEUERUNGSVORRICHTUNGFÜRDPF-REGENERATION
    • EP3051086A4
    • 2017-04-26
    • EP14847472
    • 2014-09-08
    • MITSUBISHI HEAVY IND LTD
    • NISHIZAWA KAZUKIYAMADA TOMOHIDESATO DAISUKE
    • F01N3/20F01N3/023F01N3/025F01N3/029F01N3/24F01N3/36F02D9/02F02D41/04F02D41/38F02D45/00
    • F02D41/029F01N3/023F01N3/0253F01N9/002F01N2560/06F01N2560/14F01N2900/1602F01N2900/1606F02D41/024F02D41/405Y02T10/26Y02T10/44Y02T10/47
    • An object is to provide a DPF regeneration control device whereby it is possible to prevent clogging of a DOC more efficiently than conventional techniques, and to recover the DOC securely from a clogging condition even if the DOC is actually clogged. A DPF regeneration control device (10) includes: a DPF temperature-increase unit (10A) including a first temperature-increase unit (12) configured to heat a DPF (37) to a predetermined temperature, and a second temperature-increase unit (14) configured to heat the DPF to a temperature higher than the predetermined temperature in cooperation with the first temperature-increase unit; a DOC clogging detection unit (10D) configured to detect that a DOC (35) is clogged if a clogging parameter detected during execution of the automatic regeneration exceeds a clogging threshold value determined in advance for a predetermined period, the clogging parameter being related to clogging of the DOC , and a DOC clogging countermeasure unit (10C) configured to stop the automatic regeneration and issue an alert to prompt execution of the manual regeneration, if the clogging of the DOC is detected.
    • 本发明的目的在于提供一种DPF再生控制装置,即使DOC实际上堵塞,也能够比现有技术更高效地防止DOC的堵塞,并且能够可靠地从堵塞状态恢复DOC。 DPF再生控制装置(10)包括:DPF升温单元(10A),其包括用于将DPF(37)加热到预定温度的第一升温单元(12)和第二升温单元 配置为与所述第一升温单元协作将所述DPF加热到高于所述预定温度的温度; 如果在执行自动再生期间检测到的堵塞参数超过预先确定的堵塞阈值达预定时间段,则所述DOC堵塞检测单元(10D)被配置为检测DOC(35)堵塞,所述堵塞参数与堵塞有关 以及DOC堵塞对策部(10C),其在检测到DOC的堵塞的情况下,停止自动再生并发出提示执行手动再生的警报。