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    EXHAUST GAS PURIFICATION APPARATUS OF INTERNAL COMBUSTION ENGINE
    6.
    发明公开
    EXHAUST GAS PURIFICATION APPARATUS OF INTERNAL COMBUSTION ENGINE 审中-公开
    内燃机排气净化装置

    公开(公告)号：EP3177813A1

    公开(公告)日：2017-06-14

    申请号：EP15753199.7

    申请日：2015-08-04

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： MATSUMOTO, Arifumi ,  KIDOKORO, Toru ,  HAGIMOTO, Taiga ,  FURUI, Kenji ,  UOZUMI, Akifumi

    IPC分类号： F01N3/20 ,  F01N9/00 ,  F01N11/00

    CPC分类号： F01N3/208 ,  F01N9/00 ,  F01N11/00 ,  F01N2550/03 ,  F01N2570/18 ,  F01N2900/0601 ,  F01N2900/1621 ,  F01N2900/1622 ,  Y02T10/24 ,  Y02T10/47

    摘要： An additive amount of a reducing agent to a selective reduction-type NOx catalyst is optimized. An ammonia adsorption amount of the selective reduction-type NOx catalyst is estimated based on one or a plurality of prescribed parameters related to the ammonia adsorption amount and a specific ammonia adsorption amount that is an estimated value of the ammonia adsorption amount specified by at least one of a maximum value and a minimum value of an estimated value of the ammonia adsorption amount is estimated based on an error in the prescribed parameter, and when the specific ammonia adsorption amount is outside a target range of the ammonia adsorption amount, addition of an ammonia precursor or ammonia using an adding valve is controlled such that the specific ammonia adsorption amount returns to the target range.

    摘要翻译： 选择还原型NOx催化剂（3）中的还原剂的添加量被优化。 选择还原型NOx催化剂（3）的氨吸附量是基于与氨吸附量有关的一个或多个规定参数和作为氨吸附量的估计值的特定氨吸附量而推定的 基于规定参数的误差推定氨吸附量的推定值的最大值和最小值中的至少一个，在特定的氨吸附量超过氨吸附量的目标范围的情况下， 控制添加阀的氨前体或氨的量，以使特定的氨吸附量返回目标范围。

    EXHAUST GAS CONTROL APPARATUS
    9.
    发明公开
    EXHAUST GAS CONTROL APPARATUS 有权
    排气控制装置

    公开(公告)号：EP3073083A1

    公开(公告)日：2016-09-28

    申请号：EP16162018.2

    申请日：2016-03-23

    申请人： Toyota Jidosha Kabushiki Kaisha

    发明人： OTA, Hirohiko

    IPC分类号： F01N3/20 ,  F01N3/10 ,  F01N3/36 ,  F01N13/00 ,  F01N9/00

    CPC分类号： F01N3/2066 ,  F01N3/103 ,  F01N3/106 ,  F01N3/36 ,  F01N9/00 ,  F01N13/009 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2900/0416 ,  F01N2900/1602 ,  F01N2900/1616 ,  F01N2900/1621 ,  Y02T10/24 ,  Y02T10/47

    摘要： An exhaust gas control apparatus for an internal combustion engine includes a urea adding valve (40), a selective reduction-type catalyst (41, 42), an ammonia slip catalyst (43), and a fuel addition device (30). An electronic control unit (56) is configured to control the fuel addition device (30) as an amount-increasing processing when the amount of nitrogen oxide flowing out from the selective reduction-type catalyst (41, 42) is not reduced to a desired amount with respect to the amount of the nitrogen oxide flowing into the selective reduction-type catalyst (41, 42) and when a catalyst bed temperature of the ammonia slip catalyst (43) is within a temperature region where the nitrogen oxide in exhaust gas can be reduced in the ammonia slip catalyst (43) by selective catalytic reduction in which hydrocarbon is used as a reducing agent such that the amount of the hydrocarbon in the exhaust gas flowing into the ammonia slip catalyst (43) is increased.

    摘要翻译： 用于内燃机的排气控制装置包括尿素添加阀（40），选择性还原型催化剂（41,42），氨催化剂催化剂（43）和燃料添加装置（30）。 电子控制单元（56）构成为，在从选择还原型催化剂（41,42）流出的氮氧化物的量未减少到期望值时，将燃料添加装置（30）控制为增量处理 相对于流入选择还原型催化剂（41,42）的氮氧化物的量的量，并且当氨泄露催化剂（43）的催化剂床温度在排气中的氮氧化物可以 在氨泄漏催化剂（43）中通过选择性催化还原被还原，其中使用烃作为还原剂，使得流入氨泄漏催化剂（43）的排气中的烃的量增加。