CN112282903A - 监视排气系统中的排放的方法 - Google Patents
监视排气系统中的排放的方法 Download PDFInfo
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- CN112282903A CN112282903A CN202010715989.XA CN202010715989A CN112282903A CN 112282903 A CN112282903 A CN 112282903A CN 202010715989 A CN202010715989 A CN 202010715989A CN 112282903 A CN112282903 A CN 112282903A
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- control unit
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000000446 fuel Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
- F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/04—Methods of control or diagnosing
- F01N2900/0412—Methods of control or diagnosing using pre-calibrated maps, tables or charts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
- F01N2900/1402—Exhaust gas composition
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
监视排气系统中的排放的方法。本文中公开的是一种监视排气系统中的排放的方法。排气系统包括沿着排气流动路径定位的至少一个NOx传感器。该方法包括由控制单元从NOx传感器接收100 NOx的浓度。控制单元将接收的NOx的浓度相对于数据图中定义的阈值进行比较102。控制单元检查104接收的浓度与数据图中定义的阈值之间的差异，并且控制单元显示106差异，以用于监视排气系统中的排放。
Description
技术领域
本发明涉及监视排气系统中的排气排放的领域。
技术背景
一旦巴拉特石油公司（bharat）第六阶段排放标准开始生效，关于排放要求监视燃油喷射系统的喷射正时的车载诊断要求就将是强制性的。在这种场景中，存在实时确定排气浓度以向车辆使用者警告有关于任何偏差的需要。
现有技术专利申请DE3823494A1涉及一种用于获得与燃烧系统的目标变量相互关联的参数的方法和设备，其中重复地测量目标变量，并且出于描述目标变量的目的，将直接从燃烧的光学和热学观测中确定的测量参数或参数组合进行组合。确定与目标变量相互关联的测量参数或参数组合。借助于学习、自适应方法来确定目标变量与测量参数或参数组合之间的函数关系。
附图说明
本发明的不同模式在说明书中被详细地公开，并且在附图中被图示：
图1图示了监视排气系统中的排放的方法。
具体实施方式
图1图示了监视排气系统中的排放的方法。排气系统包括沿着排气流动路径定位的至少一个NOx传感器。该方法包括由控制单元从NOx传感器接收100 NOx的浓度。控制单元将接收的NOx的浓度相对于数据图中定义的阈值进行比较102。控制单元检查104接收的浓度与数据图中定义的阈值之间的差异，并且控制单元显示106差异，以用于监视排气系统中的排放。在实施例中，显示设备是手持设备和车载显示设备中的至少一个。
将进一步详细解释上面提及的方法的工作。本文中公开的排气系统包括沿着排气流动路径定位的至少一个NOx传感器。在步骤100处，控制单元从NOx传感器接收NOx的浓度。在步骤102处，控制单元将接收的NOx的浓度相对于数据图中定义的阈值进行比较。在步骤104处，控制单元检查接收的浓度与数据图中定义的阈值之间的差异。在步骤106处，控制单元将上面提及的差异显示到显示设备上，以用于监视排气系统中的排放。控制单元依赖于来自速度传感器的信号来估计燃料的实际喷射正时。然后将其与来自数据图的喷射正时进行比较。不同的喷射正时被用作对于监视排放的输入。
考虑排气系统的示例，其中排气的质量流量为5g/hr。现在该质量流量首先由沿着排气流动路径定位的NOx传感器测量。控制单元从NOx传感器接收100 NOx的浓度。现在将5g/hr的浓度针对阈值进行比较，该阈值基于燃料喷射量来定义。现在假设阈值为2g/hr。这指示对于相同的燃料喷射量，存在更高的排气质量流量。控制单元检查接收的浓度与数据图中定义的阈值之间的差异。这种差异现在由控制单元显示到显示设备上，以用于监视排气系统中的排放。
应该理解的是，以上说明书中解释的实施例仅是说明性的，并且不根据所使用的排气系统的类型来限制本发明的范围。设想了许多这样的实施例以及在说明书中解释的实施例中的其他修改和改变。本发明的范围仅由权利要求书的范围限定。
Claims (2)
1.一种监视排气系统中的排放的方法，所述排气系统包括沿着排气流动路径定位的至少一个NOx传感器，所述方法包括：
由控制单元从所述NOx传感器接收（100）NOx的浓度；
由所述控制单元将所述接收的NOx的浓度相对于数据图中定义的阈值进行比较（102）；
由所述控制单元检查（104）所述接收的浓度与所述数据图中定义的所述阈值之间的差异；和
由所述控制单元将所述差异显示（106）到显示设备上，以用于监视所述排气系统中的排放。
2.根据权利要求1所述的方法，其中所述显示设备是手持设备和车载显示设备中的至少一个。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN201941029847 | 2019-07-24 | ||
| IN201941029847 | 2019-07-24 |
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| Publication Number | Publication Date |
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| CN112282903A true CN112282903A (zh) | 2021-01-29 |
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| CN202010715989.XA Pending CN112282903A (zh) | 2019-07-24 | 2020-07-23 | 监视排气系统中的排放的方法 |
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| CN (1) | CN112282903A (zh) |
| DE (1) | DE102020208848A1 (zh) |
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2020
- 2020-07-15 DE DE102020208848.9A patent/DE102020208848A1/de active Pending
- 2020-07-23 CN CN202010715989.XA patent/CN112282903A/zh active Pending
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| Publication number | Publication date |
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| DE102020208848A1 (de) | 2021-01-28 |
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