CN103850760B - 尿素溶液质量确定*** - Google Patents

尿素溶液质量确定*** Download PDF

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CN103850760B
CN103850760B CN201310388649.0A CN201310388649A CN103850760B CN 103850760 B CN103850760 B CN 103850760B CN 201310388649 A CN201310388649 A CN 201310388649A CN 103850760 B CN103850760 B CN 103850760B
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CN103850760A (zh
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防圣勋
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Hyundai Motor Co
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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    • C22C35/00—Master alloys for iron or steel
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    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
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    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
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    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
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    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
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Abstract

一种尿素溶液质量确定***，可以包括：尿素箱、测试室、主管线、测试管线、泵送管线、泵、控制阀，以及注射器，其中，尿素溶液通过装料孔填充在尿素箱中；所述测试室位于所述装料孔下方，以存放部分的尿素溶液；所述主管线在所述测试室下方的尿素箱的下部处连接到所述尿素箱；所述测试管线连接到所述测试室；所述主管线和所述测试管线合并到所述泵送管线中；所述泵安装在所述泵送管线内，以从所述测试室或从所述尿素箱泵送尿素溶液；所述控制阀用于选择性地将所述主管线或所述测试管线连接到所述泵送管线；所述注射器在所述泵送管线的端部处，以将尿素溶液注入排放管线中，排放气体通过所述排放管线流动。并且描述了方法。

Description

尿素溶液质量确定***
相关申请的交叉引用
本申请要求2012年12月5日提交的韩国专利申请第10-2012-0140606号的优先权，该申请的全部内容结合于此用于通过该引用的所有目的。
技术领域
本发明涉及尿素溶液质量确定***，其用于在排出氮氧化物的排放管线上注入尿素溶液以减少氮氧化物，以及用于确定供应的尿素溶液的质量以处理确定结果。
背景技术
由于加强了关于车辆排放气体的法规，因此需要有效的氮氧化物降低后处理装置。
选择性催化剂降低单元具有包括在排放气体中的氮氧化物，氮氧化物与氨气反应以将氮氧化物变成无害物质。为了产生氨气，将尿素注入到排放气体中。
特别地，在用于注入尿素溶液的***中，尿素溶液的质量非常重要。就车载检测(OBD)而言，需要感测尿素溶液的质量以进行警告的方法。
公开于该背景技术部分的信息仅仅旨在加深对本发明的一般背景技术的理解，而不应当被视为承认或以任何形式暗示该信息构成已为本领域技术人员所公知的现有技术。
发明内容
因此，本发明的各个方面致力于提供一种尿素溶液质量确定***和方法，用于确定尿素溶液被供应至尿素箱并确定供应的尿素溶液的质量以进行警告，从而可以提高排放气体的质量并可以保护自然环境。
根据本发明的各个方面的尿素溶液质量确定***可以包括：尿素箱、测试室、主管线、测试管线、泵送管线、泵、控制阀，以及注射器，其中，尿素溶液通过装料孔填充在尿素箱中；所述测试室位于所述装料孔下方，以存放部分的尿素溶液；所述主管线在所述测试室下方的尿素箱的下部处连接到所述尿素箱；所述测试管线连接到所述测试室；所述主管线和所述测试管线合并到所述泵送管线中；所述泵安装在所述泵送管线内，以从所述测试室或从所述尿素箱泵送尿素溶液；所述控制阀用于选择性地将所述主管线或所述测试管线连接到所述泵送管线；所述注射器设置在所述泵送管线的端部处，以将尿素溶液注入排放管线中，排放气体通过所述排放管线流动。
所述控制阀可以为安装在所述主管线和所述测试管线合并的点处的切换阀。选择性催化剂降低单元可以设置在所述注射器的下游侧上的排放管线内。NOx传感器可以分别设置在选择性催化剂降低单元的上游侧上和下游侧上。用于感测填充在所述尿素箱的尿素溶液的液位的液位传感器可以设置在所述尿素箱内。
根据本发明的各个方面的尿素溶液质量确定方法可以包括：感测放入尿素箱的尿素溶液的增长，确定包括在排放气体中的氮氧化物的排放量是否稳定，基于所感测的尿素溶液的增长确定是否供应了尿素溶液，如果确定供应了尿素溶液并且所述氮氧化物的排放量是稳定的，则将尿素溶液从在所述尿素箱的装料孔下方形成的测试室泵送至注射器，当尿素溶液从所述测试室注入时，感测选择性催化剂降低单元的降低率，以及如果确定了选择性催化剂降低单元的降低率小于或等于设定值，则产生警告信号。
测试管线可以连接到所述测试室，主管线可以连接到所述尿素箱的下部，泵送管线可以连接到所述注射器，所述主管线和所述测试管线合并到所述泵送管线中，泵可以安装在所述泵送管线内，以及切换阀可以安装在所述测试管线和所述主管线合并的点处。
可以根据所述警告信号点亮警告灯或者可以强制性地降低发动机的输出。
尿素溶液质量确定方法可以进一步包括：如果确定了选择性催化剂降低单元的降低率超过所述设定值，则将尿素溶液从所述尿素箱泵送至所述注射器。
如上所述，在本发明的尿素溶液质量确定***中，当确定供应了尿素溶液时，放入所述测试室的尿素溶液通过所述测试管线泵送至所述注射器，从而可以容易地确定尿素溶液的质量。
通过纳入本文的附图以及随后与附图一起用于说明本发明的某些原理的具体实施方式，本发明的方法和装置所具有的其他特征和优点将更为具体地变得清楚或得以阐明。
附图说明
图1为根据本发明的示例性尿素溶液质量确定***的示意性框图。
图2为说明根据本发明的确定尿素溶液质量的示例性方法的流程图。
具体实施方式
现在将具体参考本发明的各个实施方案，在附图中和以下的描述中示出这些实施方案的实例。虽然本发明与示例性实施方案相结合进行描述，但应当了解，本说明书并非旨在将本发明限制为那些示例性实施方案。相反，本发明旨在不但覆盖这些示例性实施方案，而且覆盖可以被包括在由所附权利要求所限定的本发明的精神和范围之内的各种选择形式、修改形式、等价形式及其它实施方案。
图1为根据本发明的各个实施方案的尿素溶液质量确定***的示意性框图。参照图1，尿素溶液质量确定***包括尿素箱100、液位传感器110、测试室130、装料孔120、主管线144、测试管线142、切换阀140、泵送管线146、泵150、注射器160、排放管线180、氮氧化物(NOx)传感器197、选择性催化剂降低单元170、配料控制单元190以及控制器195。
装料孔120形成在尿素箱100的一个上部面上，并且尿素溶液被供应至装料孔120。测试室130形成在装料孔120下面。
测试室130为设置在尿素箱100内的容器，并且在其中暂时放入从装料孔120供应的尿素溶液。测试室130的底部和侧面是闭合的，而测试室130的顶部是开放的。
供应至装料孔120的尿素溶液放入测试室130内，并且溢出的尿素溶液填充在尿素箱100的下部。
尿素箱100的下部连接到主管线144。测试室130连接到测试管线142。测试管线142和主管线144合并到泵送管线146内。
作为控制阀的切换阀140设置在主管线144、测试管线142和泵送管线146合并的点处。注射器160设置在泵送管线146的端部处。泵150设置在泵送管线146内。
注射器160将尿素溶液注入排放管线180中。选择性催化剂降低单元170设置在注射器160的下游侧上。
NOx传感器197分别设置在选择性催化剂降低单元170上游侧上和下游侧上，以感测包括在排放气体中的氮氧化物并将感测的信号或多个信号传输至控制器195。
控制器195根据接收的信号(多个信号)和发动机的驱动状态来控制配料控制单元190。配料控制单元190控制切换阀140、泵150和注射器160。
通过切换阀140，测试室130的尿素溶液通过测试管线142被泵送到注射器160，或者尿素箱100的尿素溶液通过主管线144被泵送到注射器160。
液位传感器110感测填充在尿素箱100的下部的尿素溶液的液位，以将感测的信号传输至控制器195。控制器195使用由液位传感器110传输的信号确定尿素溶液是否被供应至尿素箱100。
当确定了尿素溶液被供应至尿素箱100并且由NOx传感器197感测的氮氧化物的排放量一致或稳定时，操作泵150并且将尿素溶液通过测试室130、测试管线142、切换阀140、泵送管线146以及注射器160注入排放管线180中。
然后，在注入尿素溶液后，NOx传感器197感测包括在排放气体中的氮氧化物。控制器195操纵氮氧化物的降低率，即，选择性催化剂降低单元170的效率。
当确定了选择性催化剂降低单元170的效率低于或等于设定值时，控制器195点亮警告灯或强制性地降低发动机的输出。
在另一方面，当确定了选择性催化剂降低单元170的效率高于设定值时，控制切换阀140以便可以将尿素溶液不通过测试管线142而通过主管线144被泵送至注射器160。
图2为说明根据本发明的各个实施方案的确定尿素溶液质量的方法的流程图。参照图2，在S200中开始控制，并且在S210中感测尿素箱100的液位。在S220中确定填充在尿素箱100中的尿素溶液的增加是否大于设定值(例如，1升)。
在S230中通过NOx传感器197确定包括在经过排放管线180的排放气体中的氮氧化物的排放量是否一致或稳定。此处，在其中氮氧化物的排放量一致或稳定的条件包括怠速状态，在所述怠速状态中，发动机被一致地或稳定地驱动。
当确定了氮氧化物的排放量一致或稳定时，在S240中选择供应尿素所通过的管线。此处，选择了测试管线142。
当放入测试室130的尿素溶液通过测试管线142和注射器160而注入排放管线180中时，在S250中感测选择性催化剂降低单元170的降低效率。
当在S260中确定了选择性催化剂降低单元170的降低效率低于设定值时，在S270中点亮警告灯或强制性地降低发动机的输出。
另一方面，当在S260中确定了选择性催化剂降低单元170的降低效率高于设定值时，在S280中将填充在尿素箱100中的尿素溶液通过主管线144而非测试管线142泵送到注射器160。然后，在S290中执行返回到正常驱动模式，并且在S300中终止控制。
为了方便解释和精确限定所附权利要求，术语“上”或“下”、“上游”或“下游”等被用于参考附图中所显示的这些特征的位置来描述示例性实施方案的特征。
前面对本发明具体示例性实施方案所呈现的描述是出于说明和描述的目的。这些描述并非想穷尽本发明，或者将本发明限制为所公开的精确形式，并且很显然，根据上述教导，可以进行很多改变和变化。选择示例性实施方案并进行描述是为了解释本发明的特定原理及其实际应用，从而使得本领域的其它技术人员能够实现并利用本发明的各种示例性实施方案及其不同选择形式和修改形式。本发明的范围意在由所附权利要求书及其等价形式所限定。

Claims (9)

1.一种尿素溶液质量确定***，包括：
尿素箱，尿素溶液通过装料孔填充在所述尿素箱中；
测试室，所述测试室位于所述装料孔下方，以存放部分的尿素溶液；
主管线，所述主管线在所述测试室下方的尿素箱的下部处连接到所述尿素箱；
测试管线，所述测试管线连接到所述测试室；
泵送管线，所述主管线和所述测试管线合并到所述泵送管线中；
泵，所述泵安装在所述泵送管线内，以从所述测试室或从所述尿素箱泵送尿素溶液；
控制阀，所述控制阀用于选择性地将所述主管线或所述测试管线连接到所述泵送管线；以及
注射器，所述注射器设置在所述泵送管线的端部处，以将尿素溶液注入排放管线中，排放气体通过所述排放管线流动。
2.根据权利要求1所述的尿素溶液质量确定***，其中，所述控制阀为安装在所述主管线和所述测试管线合并的点处的切换阀。
3.根据权利要求1所述的尿素溶液质量确定***，其中，选择性催化剂降低单元设置在所述注射器的下游侧上的排放管线内。
4.根据权利要求3所述的尿素溶液质量确定***，其中，NOx传感器分别设置在所述选择性催化剂降低单元的上游侧和下游侧上。
5.根据权利要求1所述的尿素溶液质量确定***，其中，用于感测填充在所述尿素箱的尿素溶液的液位的液位传感器设置在所述尿素箱内。
6.一种尿素溶液质量确定方法，包括：
感测放入尿素箱的尿素溶液的增长；
确定包括在排放气体中的氮氧化物的排放量是否稳定；
基于所感测的尿素溶液的增长确定是否供应了尿素溶液；
如果确定供应了尿素溶液并且所述氮氧化物的排放量是稳定的，则将尿素溶液从在所述尿素箱的装料孔下方形成的测试室泵送至注射器；
当尿素溶液从所述测试室注入时，感测选择性催化剂降低单元的降低率；以及
如果确定了选择性催化剂降低单元的降低率小于或等于设定值，则产生警告信号。
7.根据权利要求6所述的尿素溶液质量确定方法，其中：
测试管线连接到所述测试室；
主管线连接到所述尿素箱的下部；
泵送管线连接到所述注射器，所述主管线和所述测试管线合并到所述泵送管线中；
泵安装在所述泵送管线内；以及
切换阀安装在所述测试管线和所述主管线合并的点处。
8.根据权利要求6所述的尿素溶液质量确定方法，其中，根据所述警告信号点亮警告灯或者强制性地降低发动机的输出。
9.根据权利要求6所述的尿素溶液质量确定方法，进一步包括：
如果确定选择性催化剂降低单元的降低率超过所述设定值，则将尿素溶液从所述尿素箱泵送至所述注射器。
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Publication number Priority date Publication date Assignee Title
EP2848931A1 (en) * 2013-09-16 2015-03-18 Inergy Automotive Systems Research (Société Anonyme) A vehicle urea tank associated with a sensing chamber for acoustic quality and level sensing
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US20190072594A1 (en) * 2017-09-04 2019-03-07 Rohde & Schwarz Gmbh & Co. Kg Vector network analyzer and measuring method for frequency converting measurements

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102269031A (zh) * 2011-07-01 2011-12-07 吉林大学 通用型scr喷射***
CN102748101A (zh) * 2012-07-10 2012-10-24 天津亿利汽车环保科技有限公司 用于降低发动机NOx排放的尿素喷射***及其控制方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3751962B2 (ja) 2003-09-05 2006-03-08 日産ディーゼル工業株式会社 エンジンの排気浄化装置
DE102005037201A1 (de) * 2005-08-06 2007-02-22 Eichenauer Heizelemente Gmbh & Co. Kg Heizsystem
EP1884772A1 (en) * 2006-08-02 2008-02-06 Nederlandse Organisatie voor Toegepast-Natuuurwetenschappelijk Onderzoek TNO Quality control of selective catalytic reduction reagents
DE102006055235A1 (de) 2006-11-23 2008-05-29 Robert Bosch Gmbh Verfahren zur Erkennung der Qualität einer Harnstoff-Wasser-Lösung
JP4710901B2 (ja) * 2007-12-27 2011-06-29 トヨタ自動車株式会社 内燃機関の排気浄化装置
US8171720B2 (en) 2008-10-06 2012-05-08 GM Global Technology Operations LLC System and methods to detect non-urea reductant filled in a urea tank
DE102010038176B4 (de) * 2010-10-14 2014-02-27 Ford Global Technologies, Llc. Verfahren zum Messen der Qualität der Ammoniakeinspritzung für ein Nachbehandlungssystem eines Kraftfahrzeugs
JP5346357B2 (ja) 2011-06-21 2013-11-20 住友ゴム工業株式会社 サイドウォール用ゴム組成物及び空気入りタイヤ
DE102012215635A1 (de) 2012-09-04 2014-03-06 Robert Bosch Gmbh Messelement sowie Verfahren zur Unterscheidung von verschiedenartigenFlüssigkeiten

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102269031A (zh) * 2011-07-01 2011-12-07 吉林大学 通用型scr喷射***
CN102748101A (zh) * 2012-07-10 2012-10-24 天津亿利汽车环保科技有限公司 用于降低发动机NOx排放的尿素喷射***及其控制方法

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