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    Regeneration control of diesel particulate filter
    3.
    发明授权
    Regeneration control of diesel particulate filter 有权
    柴油颗粒过滤器再生控制

    公开(公告)号：US07134275B2

    公开(公告)日：2006-11-14

    申请号：US11003349

    申请日：2004-12-06

    申请人： Naoya Tsutsumoto ,  Junichi Kawashima ,  Makoto Otake ,  Terunori Kondou ,  Takao Inoue ,  Shouichirou Ueno ,  Toshimasa Koga

    发明人： Naoya Tsutsumoto ,  Junichi Kawashima ,  Makoto Otake ,  Terunori Kondou ,  Takao Inoue ,  Shouichirou Ueno ,  Toshimasa Koga

    IPC分类号： F01N3/00

    CPC分类号： F02D41/025 ,  F02D41/029 ,  F02D2200/0802 ,  F02D2200/0812 ,  Y02T10/26

    摘要： A diesel particulate filter (41) traps particulate matter contained in the exhaust gas of a diesel engine (1) for a vehicle. The filter (41) is regenerated by raising the exhaust gas temperature so that the trapped particulate matter burns. A controller (31) calculates a particulate matter combustion amount PMr during regeneration, and in accordance with increases in the combustion amount PMr, raises the oxygen concentration of the exhaust gas by operating an intake throttle (42) and/or a variable nozzle (24) of a turbocharger (21). As a result, the filter (41) is held at an optimum temperature for regeneration regardless of the residual particulate matter amount, and hence the time required for regeneration can be shortened without damaging the heat resistance performance of the filter (41).

    摘要翻译： 柴油微粒过滤器（41）捕集包含在用于车辆的柴油发动机（1）的废气中的颗粒物质。 过滤器（41）通过提高废气温度再生，使得捕获的颗粒物质燃烧。 控制器（31）计算再生时的颗粒物燃烧量PMr，并根据燃烧量PMr的增加，通过操作进气节流阀（42）和/或可变喷嘴（24）来提高排气的氧浓度 ）的涡轮增压器（21）。 结果，过滤器（41）被保持在用于再生的最佳温度，而与残留颗粒物质量无关，因此可以缩短再生所需的时间，而不损害过滤器（41）的耐热性能。

    Filter regeneration in engine exhaust gas purification device
    9.
    发明授权
    Filter regeneration in engine exhaust gas purification device 有权
    发动机废气净化装置过滤器再生

    公开(公告)号：US07219493B2

    公开(公告)日：2007-05-22

    申请号：US10937272

    申请日：2004-09-10

    申请人： Naoya Tsutsumoto ,  Junichi Kawashima ,  Makoto Otake ,  Terunori Kondou ,  Takao Inoue ,  Toshimasa Koga ,  Shouichirou Ueno

    发明人： Naoya Tsutsumoto ,  Junichi Kawashima ,  Makoto Otake ,  Terunori Kondou ,  Takao Inoue ,  Toshimasa Koga ,  Shouichirou Ueno

    IPC分类号： F01N3/00 ,  F01N3/02

    CPC分类号： F02D41/029 ,  F02D41/0245 ,  F02D2200/0812 ,  Y02T10/26 ,  Y02T10/42

    摘要： A regeneration control device which regenerates a filter (13) by increasing an exhaust gas temperature to burn exhaust gas particulates trapped in the filter, is disclosed. The filter (13) traps particulate matter in exhaust gas from an engine (1). The regeneration control device suppresses fuel cost-performance impairment due to filter regeneration. The regeneration control device has a load detection sensor (31) which detects an engine load and a microcomputer-based controller (22). The controller is programmed to perform engine control to adjust the exhaust gas temperature for regeneration of the filter (13), when a computed trapped amount is equal to or more than the first reference value (A) and less than the second reference value (B), and the detected load (Vsp) is equal to or more than a reference load (Vo); and perform engine control to adjust the exhaust gas temperature for regeneration of the filter (13) regardless of the detected load (Vsp), when the computed trapped amount is equal to or more than the second reference value (B).

    摘要翻译： 公开了一种再生控制装置，其通过增加废气温度来再生过滤器（13）以燃烧被捕获在过滤器中的废气微粒。 过滤器（13）捕集来自发动机（1）的废气中的颗粒物质。 再生控制装置抑制由过滤器再生引起的燃料成本性能损害。 再生控制装置具有检测发动机负荷的负载检测传感器（31）和基于微机的控制器（22）。 当计算出的捕获量等于或大于第一参考值（A）并小于第二参考值（B）时，控制器被编程为执行发动机控制以调节废气温度以再生过滤器（13） ），检测负载（Vsp）等于或大于参考负载（Vo）; 并且当所计算的被捕获量等于或大于第二参考值（B）时，执行发动机控制以调节用于再生过滤器（13）的排气温度，而不管检测到的负载（Vsp）如何。