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1. 发明申请

WO2011126429A1 DEVICE AND METHOD FOR DETECTING A STATE OF A SENSOR IN THE EXHAUST SYSTEM OF A MOTOR VEHICLE 审中-公开
标题翻译：用于检测电动汽车排气系统中传感器状态的装置和方法
公开(公告)号：WO2011126429A1
公开(公告)日：2011-10-13
申请号：PCT/SE2011/050360
申请日：2011-03-30
申请人： Scania CV AB , LUNDSTRÖM, Mikael , GRANBERG, Anders
发明人： LUNDSTRÖM, Mikael , GRANBERG, Anders
IPC分类号： F01N11/00 , F02D41/14
CPC分类号： F01N3/208 , F01N2560/026 , F01N2560/14 , F01N2610/02 , F01N2900/1402 , F02D41/146 , F02D41/222 , Y02A50/2325 , Y02T10/24
摘要： The invention relates to a method for determining a state of at least one sensor (240; 270) of a motor vehicle (100; 112) which has an engine (230) and an exhaust system with a catalyst (260). The method comprises the steps of: - altering a NO x gas concentration downstream of the engine (230) by controlling operation of the engine (230) in a predetermined way; - determining a difference in a first NO x gas concentration upstream of said catalyst (260); - determining a difference in a second NO x gas concentration downstream of said catalyst; and - determining a state of said at least one sensor (240; 270) on the basis of said difference in the first NO x gas concentration and said difference in the second NO x gas concentration. The invention relates also to a computer programme product comprising programme code (P) for a computer (200; 210) for implementing a method according to the invention. The invention relates also to a device for determining a state of a sensor of a motor vehicle, and to a motor vehicle which is equipped with the device.
摘要翻译：本发明涉及一种用于确定具有发动机（230）和具有催化剂（260）的排气系统的机动车辆（100; 112）的至少一个传感器（240; 270）的状态的方法。该方法包括以下步骤： - 通过以预定的方式控制发动机（230）的操作来改变发动机（230）下游的NOx气体浓度; - 确定所述催化剂（260）上游的第一NOx气体浓度的差; - 确定所述催化剂下游的第二NOx气体浓度的差; 以及 - 基于所述第一NOx气体浓度的所述差异和所述第二NOx气体浓度的差异来确定所述至少一个传感器（240,270）的状态。本发明还涉及包括用于实现根据本发明的方法的计算机（200; 210）的程序代码（P）的计算机程序产品。本发明还涉及一种用于确定机动车辆的传感器的状态的装置以及配备有该装置的机动车辆。

2. 发明申请

WO2018013031A1 METHOD AND SYSTEM FOR DIAGNOSING AN AFTERTREATMENT COMPONENT SUBJECTED TO AN EXHAUST GAS STREAM 审中-公开
标题翻译：用于诊断受到排气流影响的后处理部件的方法和系统
公开(公告)号：WO2018013031A1
公开(公告)日：2018-01-18
申请号：PCT/SE2017/050632
申请日：2017-06-14
申请人： SCANIA CV AB
发明人： LUNDSTRÖM, Mikael , STENLÅÅS, Ola
IPC分类号： F01N11/00 , B01D53/94 , F01N3/10 , F01N3/20 , F01N13/00
CPC分类号： F01N11/00 , B01D53/30 , B01D53/9409 , B01D53/9495 , F01N3/10 , F01N3/2066 , F01N2560/026 , F01N2560/14 , F01N2610/02 , Y02A50/2325 , Y02T10/24 , Y02T10/47
摘要： Method for diagnosing an aftertreatment component (310), wherein nitrogen oxide (NOx) is reduced using a first catalytic converter (331) upstream said aftertreatment component (310) and a second catalytic converter (332) downstream said aftertreatment component (310), said aftertreatment component (310) oxidising nitric oxide (NO) into nitrogen dioxide (NO 2 ).A first sensor (362) measure nitrogen oxide (NO X ) downstream said first catalytic converter (331) but upstream said aftertreatment component (310), and a second sensor (364) measure nitrogen oxide (NO X ) downstream said aftertreatment component (310). The method includes: - supplying additive upstream said first catalytic converter (331), - using said first (362) and second (364) sensors, performing a first measurement (NO x,362,T1 ,NO x,364,T1 ) at a first temperature (T1) of said first aftertreatment component (310), - using said first (362) and second (364) sensors, performing a second measurement (NO x,362,T2 ,NO x,364,T2 ) at a second temperature (T2) of said first aftertreatment component (310), and 20 - diagnosing oxidation of nitric oxide (NO) into nitrogen dioxide (NO2) in said aftertreatment component (310) using said first (NO x,362,T1 ,NO x,364,T1 ) and second (NO x,362,T2 ,NO x,364,T2 ) measurements.
摘要翻译：用于诊断后处理部件（310）的方法，其中使用位于所述后处理部件（310）上游的第一催化转化器（331）和位于下游的第二催化转化器（332）来减少氮氧化物所述后处理部件（310），所述后处理部件（310）将一氧化氮（NO）氧化成二氧化氮（NO 2）。第一传感器（362）测量氮氧化物（NO X））在所述第一催化转化器（331）下游但在所述后处理部件（310）上游，并且第二传感器（364）在所述后处理部件（310）下游测量氮氧化物（NOX）。该方法包括： - 在所述第一催化转化器（331）的上游供应添加剂， - 使用所述第一传感器（362）和第二传感器（364），执行第一测量（NO ，362，T1 < 在所述第一后处理部件（310）的第一温度（T1）下，使用所述第一（362）第二后处理部件（310）和第二传感器（364），执行第二测量（NO x，362，T2，NO x，364，T2）在所述第一后处理部件（310）的第二温度（T2）下使用所述第一后处理部件（310）诊断所述后处理部件（310）中的一氧化氮（NO）氧化成二氧化氮（NO2）（x1，x2，x2，x2，x3，x1，x3，x3， x，362，T2，NO，x，364，T2）测量。

3. 发明申请

WO2017138873A1 METHOD AND SYSTEM FOR DIAGNOSING EXHAUST SENSORS 审中-公开
标题翻译：用于诊断排气传感器的方法和系统
公开(公告)号：WO2017138873A1
公开(公告)日：2017-08-17
申请号：PCT/SE2017/050123
申请日：2017-02-09
申请人： SCANIA CV AB
发明人： LUNDSTRÖM, Mikael
IPC分类号： F01N9/00 , F01N3/20 , F01N11/00
CPC分类号： F01N11/00 , F01N3/2066 , F01N2560/026 , F01N2900/1402 , Y02A50/2325 , Y02T10/24 , Y02T10/47
摘要： The invention relates to a method for diagnosing exhaust sensors, where at least one substance (NO x ) resulting from combustion is reduced by supplying an additive. A first sensor subjected to the exhaust gas stream is intended to measure an occurrence of said substance (NO x ) upstream said supply of additive, and a second sensor (208) subjected to the exhaust gas stream is intended to measure an occurrence of said substance (NO x ) downstream said supply of additive. The method includes: - determining whether the locations of said first (207) and second sensor are reversed, the determination comprising: - determining if a second measurement value of said second sensor (208) exceeds a corresponding first measurement value of said first sensor (207) at least to a first extent, and - when said second measurement value exceeds said corresponding first measurement value at least to said first extent, determining that the locations of said first (207) and second (208) sensor are reversed, said measurement values are determined when a supply of additive is set to obtain at least a first reduction of said at least one substance (NOx) to be reduced.
摘要翻译：本发明涉及一种用于诊断排气传感器的方法，其中通过供应添加剂来减少由燃烧产生的至少一种物质（NO x）。受到排气流作用的第一传感器旨在测量所述添加剂供应上游的所述物质（NO x）的出现，并且打算经受排气流的第二传感器（208）测量所述添加剂供应下游的所述物质（NO x）的出现。该方法包括： - 确定所述第一传感器（207）和第二传感器的位置是否颠倒，所述确定包括： - 确定所述第二传感器（208）的第二测量值是否超过所述第一传感器（208）的对应第一测量值 - 当所述第二测量值至少与所述第一程度相比超过所述相应的第一测量值时，确定所述第一传感器（207）和所述第二传感器（208）的位置是颠倒的，所述测量当设定添加剂供应以获得待减少的所述至少一种物质（NO x）的至少第一次还原时，确定数值。

4. 发明申请

WO2017074253A1 METHOD AND SYSTEM FOR USE WHEN CORRECTING SUPPLY OF AN ADDITIVE TO AN EXHAUST GAS STREAM 审中-公开
标题翻译：用于修正排气气体添加剂供应时使用的方法和系统
公开(公告)号：WO2017074253A1
公开(公告)日：2017-05-04
申请号：PCT/SE2016/051048
申请日：2016-10-27
申请人： SCANIA CV AB
发明人： LUNDSTRÖM, Mikael , LUNDBERG, Christer
IPC分类号： F01N3/20 , F01N11/00
CPC分类号： F01N9/00 , F01N3/208 , F01N2560/026 , F01N2610/02 , F01N2900/1402 , F01N2900/1821 , Y02A50/2325 , Y02T10/24 , Y02T10/47
摘要： The present invention relates to a method for determining when to correct supply of additive to an exhaust gas stream resulting from combustion in at least one combustion chamber (101), wherein the additive is arranged for reduction of at least one substance (NO x ) resulting from said combustion by supplying the additive to an exhaust gas stream resulting from said combustion. The quantity of additive being supplied is subjectable to correction, and a sensor is subjected to the exhaust gas stream and arranged to measure occurrence of said at least one substance (NOx). The method is characterised in: - by means of sensor signals from said sensor, determining a level of occurrence of said first substance (NO x ) in said exhaust gas stream, and - determining when to correct said supply of additive on the basis of said occurrence of said first substance (NO x ) in said exhaust gas stream.
摘要翻译：本发明涉及一种用于确定何时校正添加剂向由至少一个燃烧室（101）中的燃烧产生的排气流的供应的方法，其中添加剂被布置用于在通过将所述添加剂供应至由所述燃烧产生的废气流而由所述燃烧产生的至少一种物质（NO x）。待供给的添加剂的量可校正，并且传感器经受排气流并布置成测量所述至少一种物质（NOx）的出现。该方法的特征在于： - 借助于来自所述传感器的传感器信号，确定所述排气流中的所述第一物质（NO x）的出现水平，以及 - 基于所述所述确定何时校正所述添加剂供应在所述排气流中出现所述第一物质（NO x）。

5. 发明申请

WO2021101430A1 METHOD AND SYSTEM FOR DIAGNOSING OXIDATION OF A SUBSTANCE IN AN EXHAUST GAS STREAM 审中-公开
公开(公告)号：WO2021101430A1
公开(公告)日：2021-05-27
申请号：PCT/SE2020/051091
申请日：2020-11-13
申请人： SCANIA CV AB
发明人： LUNDSTRÖM, Mikael , SIMOVITS, Astrid
IPC分类号： F01N11/00 , B01D53/94 , F01N3/10 , F01N3/20
摘要： The present invention relates to a method for diagnosing a first exhaust treatment component (310;320) for treatment of an exhaust gas stream, said first exhaust treatment component (310;320) comprising means (333) for oxidizing nitric oxide (NO) into nitrogen dioxide (NO2). A first reduction catalytic converter (331) is arranged upstream said means (333) for oxidizing nitric oxide (NO) into nitrogen dioxide (NO2), and a second reduction catalytic converter (332) is arranged downstream said means (333). A reagent (NH3) is for reduction of nitrogen oxides (NOx) in said first catalytic converter (331), and a first sensor (362;363) measures an occurrence of nitrogen oxide (NOX) downstream said means (333) but upstream said second reduction catalytic converter (332). The method comprises: causing a supply of reagent (NH3) upstream said first reduction catalytic converter (331) to an extent exceeding the extent to which reagent (NH3) is consumed by the first reduction catalytic converter (331), determining a first measure of the occurrence of reagent (NH3) downstream said means (333) for oxidizing, and diagnosing said means for oxidizing nitric oxide (NO) into nitrogen dioxide (NO2) based on said first measure.

6. 发明申请

WO2019059837A1 System and method for diagnosing an emission control arrangement for a combustion engine 审中-公开
公开(公告)号：WO2019059837A1
公开(公告)日：2019-03-28
申请号：PCT/SE2018/050964
申请日：2018-09-21
申请人： SCANIA CV AB
发明人： HÄLLEBERG, Roger , LUNDSTRÖM, Mikael
IPC分类号： F01N11/00 , F01N3/20
摘要： The invention relates to a method for diagnosing an emission control arrangement for a combustion engine (231) in operation, comprising at least a first SCR configuration (260) and a second SCR configuration (270) arranged in a series The method comprises the steps of: -determining (s420) a first degree of NO x content reduction for the first SCR configuration (260); -determining (s425) a second degree of NO x content reduction for the second SCR configuration(270); -determining (s430) a total degree of NO x content reduction for the emission control arrangement on the basis of the thus determined first degree of NO x content reduction and the second degree of NO x content reduction; -comparing (s435) the total degree of NO x content reduction for the emission control arrangement with a predetermined reference degree of NO x content reduction for the emission control arrangement; and -determining (s440) that the emission control arrangement is operating as desired if the total degree of NO x content reduction exceeding the predetermined reference degree of NO x content reduction. The invention relates also to a computer program product comprising program code (P) for a computer (200; 210; 500) for implementing a method according to the invention. The invention relates also to a system for diagnosing an emission control arrangement for a combustion engine in operation, comprising at least a first SCR configuration and a second SCR configuration arranged in a series,and a motor vehicle (100) equipped with the system.

7. 发明申请

WO2018013042A1 METHOD AND SYSTEM FOR USE WHEN CORRECTING SUPPLY OF AN ADDITIVE TO AN EXHAUST GAS STREAM 审中-公开
标题翻译：用于修正排气气体添加剂供应时使用的方法和系统
公开(公告)号：WO2018013042A1
公开(公告)日：2018-01-18
申请号：PCT/SE2017/050759
申请日：2017-07-06
申请人： SCANIA CV AB
发明人： LUNDSTRÖM, Mikael , STENLÅÅS, Ola
IPC分类号： F01N3/20 , B01D53/94 , F01N3/36
摘要： The present invention relates to a method for correcting a supply of additive to an exhaust gas stream (303) resulting from combustion in an internal combustion engine (101). A first aftertreatment component (310) being arranged for oxidation of nitric oxide (NO) into nitrogen dioxide (NO 2 ), and a reduction catalytic converter (332) being arranged downstream said first aftertreatment component (310). Additive is supplied to said exhaust gas stream (303) for reduction of nitrogen oxides (NO x ) in said reduction catalytic converter (332), the additive being supplied in proportion to an occurrence of nitrogen oxides (NO x ) in said exhaust gas stream (303), said proportion being subject to correction. The method includes: - supplying unburned fuel to said exhaust gas stream (303) upstream said first aftertreatment component (310) to reduce oxidation of nitric oxide (NO) into nitrogen dioxide (NO 2 ) in said first aftertreatment component (310), and - correcting said supply of additive to said exhaust gas stream (303) when supplying unburned fuel to said exhaust gas stream (303).
摘要翻译：本发明涉及一种用于校正向由内燃机（101）中的燃烧产生的排气流（303）供应添加剂的方法。布置用于氧化一氧化氮（NO）为二氧化氮（NO 2）的第一后处理部件（310）和布置在所述第一后处理部件（310）下游的还原催化转化器（332）。将添加剂供应到所述废气流（303）中以还原所述还原催化转化器（332）中的氮氧化物（NO x），所述添加剂与氮氧化物（NO 所述排气流（303）中的所述比例经历校正。该方法包括： - 向所述第一后处理部件（310）上游的所述废气流（303）供应未燃烧的燃料，以减少所述第一后处理部件（310）中的一氧化氮（NO）氧化成二氧化氮（NO 2）（310）;以及 - 当向所述排气流（303）供应未燃燃料时，校正所述排气流（303）的所述添加剂供应。

8. 发明申请

WO2013141793A1 DEVICE AND METHOD FOR CLEANING OF AN SCR SYSTEM 审中-公开
标题翻译：用于清洁SCR系统的装置和方法
公开(公告)号：WO2013141793A1
公开(公告)日：2013-09-26
申请号：PCT/SE2013/050289
申请日：2013-03-18
申请人： SCANIA CV AB
发明人： SIMON, Anders , LUNDSTRÖM, Mikael
IPC分类号： F01N3/20 , F01N9/00 , F01N11/00
CPC分类号： F01N3/208 , F01N3/2006 , F01N11/00 , F01N2430/00 , F01N2550/02 , F01N2560/026 , F01N2560/06 , F01N2560/14 , F01N2610/02 , F01N2900/0416 , F01N2900/1621 , Y02A50/2325 , Y02T10/24 , Y02T10/26
摘要： The invention relates to a method for cleaning an SCR system whereby reducing agent is supplied to an exhaust flow upstream of an SCR catalyst (260), ΝΟx contents of the exhaust flow are determined upstream and downstream of said SCR catalyst (260) and reducing agent crystals are removed by a high-temperature procedure. The method comprises the steps of - determining (s430) a ratio (K1) between respective NOx contents determined downstream and upstream of said SCR catalyst (260) at a temperature (T1) of said SCR catalyst (260) at which reducing agent crystals do not vaporise, - raising the temperature (s440) of the exhaust flow in order to vaporise reducing agent crystals with a view to cleaning, - determining (s450) a ratio (Kn) between respective NOx contents determined downstream and upstream of said SCR catalyst (260) at a temperature (T2) of said SCR catalyst (260) at which reducing agent crystals vaporise, - comparing (s460) said ratios (K1, Kn) and using this comparison as a basis for deciding whether reducing agent crystals have been removed to an intended extent. The invention relates also to a computer programme product containing programme code (P) for a computer (200; 210) for implementing a method according to the invention. The invention relates also to a device and a motor vehicle equipped with the device.
摘要翻译：本发明涉及一种用于清洁SCR系统的方法，其中将还原剂供应到SCR催化剂（260）上游的排气流，排除流量的NuOmicron内含物被确定在所述SCR催化剂（260）的上游和下游以及还原剂通过高温程序除去晶体。该方法包括以下步骤：在还原剂晶体所在的SCR催化剂（260）的温度（T1）下确定（s430）在所述SCR催化剂（260）的下游和上游确定的各个NOx含量之间的比率（K1）不蒸发 - 提高排气流的温度（s440）以便蒸发还原剂晶体以便清洗， - 确定（s450）在SCR催化剂下游和上游确定的各个NOx含量之间的比（Kn） 260）在所述SCR催化剂（260）的温度（T2）下还原剂晶体蒸发， - 比较（s460）所述比例（K1，Kn）并使用该比较作为判断还原剂晶体是否被去除的基础达到预期的程度。本发明还涉及一种包含用于实现根据本发明的方法的计算机（200; 210）的程序代码（P）的计算机程序产品。本发明还涉及装备有该装置的装置和机动车辆。

9. 发明申请

WO2018013038A1 METHOD AND SYSTEM FOR DIAGNOSING AN AFTERTREATMENT SYSTEM 审中-公开
标题翻译：用于诊断外部处理系统的方法和系统
公开(公告)号：WO2018013038A1
公开(公告)日：2018-01-18
申请号：PCT/SE2017/050755
申请日：2017-07-06
申请人： SCANIA CV AB
发明人： LUNDSTRÖM, Mikael , ZAMANI, Sebastian , WAHLSTRÖM, Carl
IPC分类号： F01N11/00 , B01D53/94 , F01N3/20
摘要： The present invention relates to a method for diagnosing aftertreatment of exhaust gases resulting from combustion, wherein at least a first substance (NO x ) resulting from said combustion is reduced by supplying additive to an exhaust gas stream resulting from said combustion and use of a first reduction catalytic converter (201). The method includes: - estimating an accumulated expected reduction of said first substance (NO x ) during a first period of time (tlim1), - determining an accumulated actual reduction of said first substance (NO x ) during a period of time at least substantially overlapping said first period of time (tlim1), and - generating a signal indicating a fault in said reduction of said first substance (NO x ) when said accumulated actual reduction differs from said accumulated expected reduction by a predetermined difference in occurrence of said first substance (NO x ). The invention also relates to a corresponding system.
摘要翻译：本发明涉及一种用于诊断由燃烧产生的废气的后处理的方法，其中由所述燃烧产生的至少第一物质（NO x）通过供应添加剂由所述燃烧产生的废气流和第一还原催化转化器（201）的使用。所述方法包括： - 在第一时间段（tlim1）期间估计所述第一物质（NO x）的累积预期减少量， - 确定所述第一物质的累积实际减少量（NO _{x）在至少基本上与所述第一时间段（tlim1）重叠的时间段期间，以及 - 生成指示所述第一物质的所述减少中的故障的信号（NO x）当所述累积的实际减少量与所述累积的预期减少量相差所述第一物质（NOX）的预定差异时。本发明还涉及相应的系统。}

10. 发明申请

WO2017074252A1 METHOD AND SYSTEM FOR DIAGNOSING AN AFTERTREATMENT SYSTEM 审中-公开
标题翻译：用于诊断外部处理系统的方法和系统
公开(公告)号：WO2017074252A1
公开(公告)日：2017-05-04
申请号：PCT/SE2016/051047
申请日：2016-10-27
申请人： SCANIA CV AB
发明人： LUNDSTRÖM, Mikael
IPC分类号： F01N3/20 , F01N11/00 , F02D43/00 , B01D53/94
CPC分类号： F02D41/0235 , B01D53/9418 , B01D53/9495 , B01D2251/2067 , F01N3/2066 , F01N3/208 , F01N9/00 , F01N2550/02 , F01N2560/026 , F01N2560/14 , F01N2610/02 , F01N2900/0416 , F01N2900/1818 , F02D41/1463 , F02D41/22 , F02D41/222 , F02D2250/26 , Y02A50/2325 , Y02T10/24 , Y02T10/47
摘要： The present invention relates to a method for restricting work produced in a combustion chamber (101), wherein a substance (NOx) resulting from combustion is reduced by supplying additive comprising a reagent to the exhaust gas stream (119). The method being characterised in: - determining if a quality of said additive, estimated by means of a first sensor (211) being subjected to said additive, is below a first quality; - determining if signals from a second sensor (208) being subjected to the exhaust gas stream (119) indicate insufficient reduction of said at least one substance (NOx); - determining if a correction of the supply of additive has reached an upper limit; - restricting work produced by combustion only when: said estimated quality of said additive is below said first quality, said correction has reached said upper limit, and said measurement in the exhaust gas stream (119) indicates insufficient reduction.
摘要翻译：本发明涉及一种限制在燃烧室（101）中产生的功的方法，其中通过向排气流供应包含试剂的添加剂来减少由燃烧产生的物质（NOx） 119）。该方法的特征在于： - 确定借助于经受所述添加剂的第一传感器（211）估计的所述添加剂的质量是否低于第一质量; - 确定来自经受排气流（119）的第二传感器（208）的信号是否指示所述至少一种物质（NO x）的还原不足; - 确定添加剂供应的校正是否已经达到上限; - 仅当所述添加剂的所述估计质量低于所述第一质量时，所述校正已经达到所述上限，并且所述排气流（119）中的所述测量指示不足的减少时，限制燃烧产生的功。

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