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公开(公告)号：US09181831B2
公开(公告)日：2015-11-10
申请号：US13699498
申请日：2011-05-16
CPC分类号： F01N3/18 , F01N3/208 , F01N11/002 , F01N13/009 , F01N2550/05 , F01N2610/02 , F01N2610/1493 , F01N2900/08 , F01N2900/1811 , Y02T10/24 , Y02T10/47
摘要： A selective catalytic reduction (SCR) system that can suppress thermal damage in operation of a dosing valve resulting from crystallization of urea solution and corrosion of the dosing valve to perform proper urea solution injection control, and includes an SCR device provided in an exhaust pipe of an engine; a dosing valve that injects urea solution at an upstream side of the SCR device; a minimum injection quantity setting unit that if temperature of the dosing valve is equal to or higher than a predetermined temperature, sets a minimum injection quantity according to the temperature of the dosing valve; and an urea solution injection control unit that if injected quantity of urea solution according to quantity of NOx emitted from the engine is smaller than the minimum injection quantity, controls the injected quantity of urea solution to be the minimum injection quantity.
摘要翻译： 一种选择性催化还原（SCR）系统，其可以抑制由尿素溶液结晶引起的计量阀操作中的热损伤和剂量阀的腐蚀以进行适当的尿素溶液注入控制，并且包括设置在排气管中的SCR装置 发动机 在SCR装置的上游侧注入尿素溶液的计量阀; 最小喷射量设定单元，如果所述计量阀的温度等于或高于预定温度，则根据所述计量阀的温度设定最小喷射量; 以及尿素溶液喷射控制单元，如果根据从发动机排出的NOx的量的尿素溶液的喷射量小于最小喷射量，则将尿素溶液的喷射量控制为最小喷射量。
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公开(公告)号：US20130064719A1
公开(公告)日：2013-03-14
申请号：US13699498
申请日：2011-05-16
IPC分类号： F01N3/18
CPC分类号： F01N3/18 , F01N3/208 , F01N11/002 , F01N13/009 , F01N2550/05 , F01N2610/02 , F01N2610/1493 , F01N2900/08 , F01N2900/1811 , Y02T10/24 , Y02T10/47
摘要： A selective catalytic reduction (SCR) system that can suppress thermal damage in operation of a dosing valve resulting from crystallization of urea solution and corrosion of the dosing valve to perform proper urea solution injection control, and includes an SCR device provided in an exhaust pipe of an engine; a dosing valve that injects urea solution at an upstream side of the SCR device; a minimum injection quantity setting unit that if temperature of the dosing valve is equal to or higher than a predetermined temperature, sets a minimum injection quantity according to the temperature of the dosing valve; and an urea solution injection control unit that if injected quantity of urea solution according to quantity of NOx emitted from the engine is smaller than the minimum injection quantity, controls the injected quantity of urea solution to be the minimum injection quantity.
摘要翻译： 一种选择性催化还原（SCR）系统，其可以抑制由尿素溶液结晶引起的计量阀操作中的热损伤和剂量阀的腐蚀以进行适当的尿素溶液注入控制，并且包括设置在排气管中的SCR装置 发动机 在SCR装置的上游侧注入尿素溶液的计量阀; 最小喷射量设定单元，如果所述计量阀的温度等于或高于预定温度，则根据所述计量阀的温度设定最小喷射量; 以及尿素溶液喷射控制单元，如果根据从发动机排出的NOx的量的尿素溶液的喷射量小于最小喷射量，则将尿素溶液的喷射量控制为最小喷射量。
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公开(公告)号：US20080163609A1
公开(公告)日：2008-07-10
申请号：US11883335
申请日：2005-11-10
申请人： Hitoshi Satou , Takehito Imai , Tatsuo Mashiko , Takao Onodera , Makoto Takeuchi , Mamoru Komine , Nobuyuki Hiraki
发明人： Hitoshi Satou , Takehito Imai , Tatsuo Mashiko , Takao Onodera , Makoto Takeuchi , Mamoru Komine , Nobuyuki Hiraki
IPC分类号： F01N9/00
CPC分类号： B01D53/944 , F01N3/0231 , F01N9/002 , F01N13/0097 , F01N2900/102 , F01N2900/1606 , Y02T10/47
摘要： An exhaust emission control system [1] comprising a continuous regenerating DPF [13] and a DPF controlling means [30C], wherein control is so performed as to accept the operation of a forced regenerating means [34C] at an operation request by a driver when it is judged a traveling distance [ΔMc] after starting collection detected by a traveling distance detecting means [33C] has reached a specified judging traveling distance [ΔM1] even when the DPF controlling means [30C] detects a collection amount [ΔPm] detected by a collection amount detecting means [32C] is smaller than a specified judging collection amount [ΔP1]. Accordingly, in a continuous regenerating DPF [13] capable of manual regenerating, the number of warning such as a blinking regeneration button prompting a manual regeneration is reduced to relieve a driver of trouble.
摘要翻译： 一种排气排放控制系统[1]，包括连续再生DPF [13]和DPF控制装置[30 C]，其中，控制被执行以在操作请求下接受强制再生装置[34C]的操作 即使当DPF控制装置[30C]检测到集合时，当判断由行驶距离检测装置[33 C]检测到的开始采集之后的行驶距离[ΔMc]已经达到指定的判断行驶距离[ΔM1]时的驾驶员 由收集量检测装置[32 C]检测的量[ΔPm]小于指定的判断收集量[ΔP1]。 因此，在能够手动再生的连续再生DPF [13]中，减少了提示手动再生的闪烁再生按钮等警告的数量，以减轻驾驶员的麻烦。
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公开(公告)号：US07845165B2
公开(公告)日：2010-12-07
申请号：US11883335
申请日：2005-11-10
申请人： Hitoshi Satou , Takehito Imai , Tatsuo Mashiko , Takao Onodera , Makoto Takeuchi , Mamoru Komine , Nobuyuki Hiraki
发明人： Hitoshi Satou , Takehito Imai , Tatsuo Mashiko , Takao Onodera , Makoto Takeuchi , Mamoru Komine , Nobuyuki Hiraki
IPC分类号： F01N3/00
CPC分类号： B01D53/944 , F01N3/0231 , F01N9/002 , F01N13/0097 , F01N2900/102 , F01N2900/1606 , Y02T10/47
摘要： An exhaust emission control system including a continuous regenerating diesel particulate filter (“DPF”) and a DPF controller, wherein a forced regenerator is operated by a driver's request, when it is judged that a traveling distance, after starting particulate matter collection, detected by a traveling distance detector has reached a predetermined judging traveling distance, even when the DPF controller detects that a collection amount detected by a collection amount detector is smaller than a prescribed judging collection amount. Accordingly, in a continuous regenerating DPF capable of manual regenerating, the number of warnings, such as a blinking regeneration button prompting a manual regeneration, is reduced to relieve a driver of annoyance or inconvenience.
摘要翻译： 一种废气排放控制系统，包括连续再生柴油微粒过滤器（DPF）和DPF控制器，其中，当驾驶员的请求判断出开始颗粒物收集后的行驶距离由 即使当DPF控制器检测到由收集量检测器检测到的收集量小于规定的判断收集量时，行进距离检测器已经达到预定的判断行驶距离。 因此，在能够手动再生的连续再生DPF中，减少了提示手动再生的闪烁再生按钮等警告的数量，以减轻驾驶员的烦恼或不便。
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