CN206419089U - The equipment of nitrogen oxide emission in a kind of detection vehicle exhaust - Google Patents
The equipment of nitrogen oxide emission in a kind of detection vehicle exhaust Download PDFInfo
- Publication number
- CN206419089U CN206419089U CN201720050316.0U CN201720050316U CN206419089U CN 206419089 U CN206419089 U CN 206419089U CN 201720050316 U CN201720050316 U CN 201720050316U CN 206419089 U CN206419089 U CN 206419089U
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- China
- Prior art keywords
- vehicle
- sensor
- vehicle exhaust
- equipment
- tail gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 238000001514 detection method Methods 0.000 title abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 29
- 238000006073 displacement reaction Methods 0.000 claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 2
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 claims 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 2
- BUCXEFZXWKUCCY-UHFFFAOYSA-N 4-methyl-3-(2-phenylethyl)-1,2,4-oxadiazol-5-one Chemical compound O1C(=O)N(C)C(CCC=2C=CC=CC=2)=N1 BUCXEFZXWKUCCY-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002229 photoelectron microspectroscopy Methods 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model discloses a kind of equipment for detecting nitrogen oxide emission in vehicle exhaust, including：Vehicle speed sensor, the current driving speed for detecting vehicle；Tail gas displacement sensor, the mass flow for detecting vehicle exhaust；NOx sensor, the concentration for detecting nitrogen oxides in vehicle exhaust；Controller, the signal of the vehicle speed sensor, tail gas displacement sensor and NOx sensor output is received respectively, and calculates according to the detected value of the vehicle speed sensor, tail gas displacement sensor and NOx sensor the nitrogen oxide emission of vehicle exhaust.The utility model obtains the concentration of nitrogen oxides in vehicle exhaust by NOx sensor, the current driving speed of vehicle and the mass flow of vehicle exhaust are obtained according to vehicle speed sensor and tail gas displacement sensor respectively, it is simple in construction, be easily installed that use, detection efficiency be high, cost is low so as to calculate the discharge capacity of nitrogen oxides in vehicle exhaust.
Description
Technical field
The utility model is related to automobile emission gas analyzer technology, specifically, is nitrogen oxides in a kind of detection vehicle exhaust
The equipment of discharge capacity.
Background technology
With the upgrading of automobile emissions standards, the automotive needs vehicle nitrogen oxides of the discharge standard of capital five is currently met
（NOx）Discharge will be within certain limitation, while according to the PEMS of state five（Portable Emission Measurement
System, vehicle mounted tail gas detection device）The requirement of regulation exposure draft, future meets the vehicle NOx of the truck of the discharge of state five
Discharge will also meet certain limit value requirement.But the light truck of current state four and the discharge standard of state five is configured without phase in itself
The NOx test sensors answered, so it is difficult to f measures the NOx emission value of these vehicles in real time.
In addition to meeting harsh laws and regulations requirement, in order to reach that the discharge of laws and regulations requirement is limited, the development phase needs car
Discharge calibration engineer the emission result of Vehicular exhaust is taken multiple measurements, then according to test result to discharge demarcation number
Laws and regulations requirement is met according to modifying.
The test equipment required in national emission from vehicles regulation（PEMS）It is powerful, but purchase cost is too high,
And use cost also tends to expensive, install and use also more complicated, it is impossible to independent to use some functions of modules.In addition,
In country's limit row's regulation, vehicle emission gaseous contaminant composition is generally：CO\CO2\NOx\THC.What is used now is light-duty
In diesel engine technologies CO CO2THC limit value of the discharge well below laws and regulations requirement, it is exactly NOx that concern is compared in industry
Emission behaviour.Such case to need one kind to be easily installed use, can improve test efficiency, while can control to test into
This, and the detection device for embodying PEMS test results can be met again.
Utility model content
The technical problems to be solved in the utility model, which is to provide, a kind of is easily installed that use, detection efficiency be high, cost is low
The equipment for detecting nitrogen oxide emission in vehicle exhaust.
In order to solve the above-mentioned technical problem, the utility model provides nitrogen oxide emission in a kind of detection vehicle exhaust
Equipment, including：
Vehicle speed sensor, the current driving speed for detecting vehicle；
Tail gas displacement sensor, the mass flow for detecting vehicle exhaust；
NOx sensor, the concentration for detecting nitrogen oxides in vehicle exhaust；
Controller, receives the letter of the vehicle speed sensor, tail gas displacement sensor and NOx sensor output respectively
Number, and vehicle exhaust is calculated according to the detected value of the vehicle speed sensor, tail gas displacement sensor and NOx sensor
The discharge capacity of middle nitrogen oxides.
Further, the controller includes：
Multiple interfaces, connect the vehicle speed sensor, tail gas displacement sensor and NOx sensor, for connecing respectively
Receive the signal of the vehicle speed sensor, tail gas displacement sensor and NOx sensor output；
Analog-to-digital conversion module, is connected to the interface, for by the interface to analog information be converted to numeral
Signal；
Computing module, is connected to the analog-to-digital conversion module, for according to the numeral after analog-to-digital conversion module conversion
Signal of change goes out the discharge capacity of nitrogen oxides in vehicle exhaust.
Further, the controller also includes：
Output interface, is connected to the computing module, the result of calculation for exporting the computing module.
Further, the equipment also includes：
Display device, is connected to the output interface, the result of calculation for showing the computing module.
Further, the vehicle speed sensor and tail gas displacement sensor use vehicle-mounted electronic control unit, the interface
Including ETK interfaces, the controller is connected by the ETK interfaces with the vehicle-mounted electronic control unit.
Further, the vehicle-mounted electronic control unit measures the matter for obtaining the vehicle exhaust by electronic control common rail system
Measure flow.
Further, the interface includes CAN interface, and the controller passes through the CAN interface and the nitrogen oxides
Sensor is connected.
Further, in addition to power module, for for the vehicle speed sensor, tail gas displacement sensor, nitrogen oxides
Sensor and controller are powered.
Further, heater is provided with the NOx sensor, for heating NOx sensor with complete
Into dew point detection.
The equipment of nitrogen oxide emission, is obtained by NOx sensor in detection vehicle exhaust of the present utility model
The concentration of nitrogen oxides in vehicle exhaust, the current driving of vehicle is obtained according to vehicle speed sensor and tail gas displacement sensor respectively
The mass flow of speed and vehicle exhaust, it is simple in construction, be easy to peace so as to calculate the discharge capacity of nitrogen oxides in vehicle exhaust
Dress is used, detection efficiency is high, cost is low.
Brief description of the drawings
Fig. 1 is the structure principle chart of the equipment of nitrogen oxide emission in detection vehicle exhaust of the present utility model.
Fig. 2 is the structure principle chart of an embodiment of controller in the utility model.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art
The utility model may be better understood and can be practiced, but illustrated embodiment is limited not as to of the present utility model.
As shown in figure 1, the equipment of the present utility model for detecting nitrogen oxide emission in vehicle exhaust, including：
Vehicle speed sensor, the current driving speed for detecting vehicle；
Tail gas displacement sensor, the mass flow for detecting vehicle exhaust；
NOx sensor, the concentration for detecting nitrogen oxides in vehicle exhaust；
Controller, receives the letter of the vehicle speed sensor, tail gas displacement sensor and NOx sensor output respectively
Number, and vehicle exhaust is calculated according to the detected value of the vehicle speed sensor, tail gas displacement sensor and NOx sensor
Middle nitrogen oxide emission.
Wherein, vehicle transient state discharged nitrous oxides（Unit：g/Km）It is as follows：
The real-time exhaust gas mass flows of concentration of emission * cars two of vehicle transient state NOx emission=Nox/（Speed * 1000）.
And vehicle cycle is arranged（Unit：g/Km）Put as follows:
Vehicle cycle discharge=∫ vehicle transient state NOx discharge * dt.
As shown in Fig. 2 controller of the present utility model includes：
Multiple interfaces, connect the vehicle speed sensor, tail gas displacement sensor and NOx sensor, for connecing respectively
Receive the signal of the vehicle speed sensor, tail gas displacement sensor and NOx sensor output；
Analog-to-digital conversion module, is connected to the interface, for by the interface to analog information be converted to numeral
Signal；
Computing module, is connected to the analog-to-digital conversion module, for according to the numeral after analog-to-digital conversion module conversion
Signal of change goes out the discharge capacity of nitrogen oxides in vehicle exhaust；
Output interface, is connected to the computing module, the result of calculation for exporting the computing module.
Again as shown in figure 1, the equipment also includes：
Display device, is connected to the output interface, the result of calculation for showing the computing module.
Preferably, the vehicle speed sensor and tail gas displacement sensor use vehicle-mounted electronic control unit（Electronic
Control Unit, ECU）To realize, the interface includes ETK interfaces, and the controller passes through the ETK interfaces and the car
Carry electronic control unit connection.The vehicle-mounted electronic control unit is measured by electronic control common rail system and obtains the vehicle exhaust
Mass flow.
As shown in Fig. 2 the interface includes CAN interface, the controller passes through the CAN interface and the nitrogen oxides
Sensor is connected.
As shown in figure 1, the equipment of nitrogen oxide emission also includes power supply mould in detection vehicle exhaust of the present utility model
Block, for being powered for the vehicle speed sensor, tail gas displacement sensor, NOx sensor and controller.
Preferably, heater is provided with the NOx sensor, for heating NOx sensor to complete
Dew point is detected.During detection, dew point is first sent to NOx sensor by CAN interface by controller and detects signal, nitrogen oxidation
Thing sensor is begun to warm up, and NOx sensor can start normal work after the completion of dew point detection.
Embodiment described above is only the preferred embodiment to absolutely prove the utility model and being lifted, the utility model
Protection domain not limited to this.Equivalent substitute or change that those skilled in the art are made on the basis of the utility model
Change, within protection domain of the present utility model.Protection domain of the present utility model is defined by claims.
Claims (9)
1. a kind of equipment for detecting nitrogen oxide emission in vehicle exhaust, it is characterised in that including：
Vehicle speed sensor, the current driving speed for detecting vehicle；
Tail gas displacement sensor, the mass flow for detecting vehicle exhaust；
NOx sensor, the concentration for detecting nitrogen oxides in vehicle exhaust；
Controller, receives the signal of the vehicle speed sensor, tail gas displacement sensor and NOx sensor output respectively, and
The nitrogen oxygen of vehicle exhaust is calculated according to the detected value of the vehicle speed sensor, tail gas displacement sensor and NOx sensor
Compound discharge capacity.
2. the equipment of nitrogen oxide emission in vehicle exhaust is detected as claimed in claim 1, it is characterised in that the control
Device includes：
Multiple interfaces, connect the vehicle speed sensor, tail gas displacement sensor and NOx sensor, for receiving respectively
State the signal of vehicle speed sensor, tail gas displacement sensor and NOx sensor output；
Analog-to-digital conversion module, is connected to the interface, for by the interface to analog information be converted to data signal；
Computing module, is connected to the analog-to-digital conversion module, for according to the data signal after analog-to-digital conversion module conversion
Calculate the discharge capacity of nitrogen oxides in vehicle exhaust.
3. the equipment of nitrogen oxide emission in vehicle exhaust is detected as claimed in claim 2, it is characterised in that the control
Device also includes：
Output interface, is connected to the computing module, the result of calculation for exporting the computing module.
4. the equipment of nitrogen oxide emission in vehicle exhaust is detected as claimed in claim 3, it is characterised in that the equipment
Also include：
Display device, is connected to the output interface, the result of calculation for showing the computing module.
5. the equipment of nitrogen oxide emission in vehicle exhaust is detected as claimed in claim 2, it is characterised in that the speed
Sensor and tail gas displacement sensor use vehicle-mounted electronic control unit, and the interface includes ETK interfaces, and the controller passes through
The ETK interfaces are connected with the vehicle-mounted electronic control unit.
6. the equipment of nitrogen oxide emission in vehicle exhaust is detected as claimed in claim 5, it is characterised in that described vehicle-mounted
Electronic control unit measures the mass flow for obtaining the vehicle exhaust by electronic control common rail system.
7. the equipment of nitrogen oxide emission in vehicle exhaust is detected as claimed in claim 2, it is characterised in that the interface
Including CAN interface, the controller is connected by the CAN interface with the NOx sensor.
8. the equipment of nitrogen oxide emission in vehicle exhaust is detected as claimed in claim 1, it is characterised in that also including electricity
Source module, for being powered for the vehicle speed sensor, tail gas displacement sensor, NOx sensor and controller.
9. the equipment of nitrogen oxide emission in vehicle exhaust is detected as claimed in claim 8, it is characterised in that the nitrogen oxygen
Heater is provided with compound sensor, is detected for heating NOx sensor with completing dew point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720050316.0U CN206419089U (en) | 2017-01-17 | 2017-01-17 | The equipment of nitrogen oxide emission in a kind of detection vehicle exhaust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720050316.0U CN206419089U (en) | 2017-01-17 | 2017-01-17 | The equipment of nitrogen oxide emission in a kind of detection vehicle exhaust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206419089U true CN206419089U (en) | 2017-08-18 |
Family
ID=59572760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720050316.0U Expired - Fee Related CN206419089U (en) | 2017-01-17 | 2017-01-17 | The equipment of nitrogen oxide emission in a kind of detection vehicle exhaust |
Country Status (1)
| Country | Link |
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| CN (1) | CN206419089U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107544362A (en) * | 2017-10-20 | 2018-01-05 | 倪晋挺 | A kind of embedded sulfur dioxide monitoring and the Transport Machinery of early warning |
| CN107653924A (en) * | 2017-10-20 | 2018-02-02 | 倪晋挺 | A kind of excavating machinery of embedded carbon monoxide monitoring and early warning |
| CN111199011A (en) * | 2019-12-30 | 2020-05-26 | 上海中安电子信息科技有限公司 | Map-based vehicle nitrogen oxide emission monitoring method |
| CN111824224A (en) * | 2020-06-19 | 2020-10-27 | 杭州恒领科技有限公司 | Vehicle warning management device based on exhaust pollutant detects |
| CN113740489A (en) * | 2021-07-23 | 2021-12-03 | 潍柴动力股份有限公司 | Detection method and detection device of nitrogen-oxygen sensor |
-
2017
- 2017-01-17 CN CN201720050316.0U patent/CN206419089U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107544362A (en) * | 2017-10-20 | 2018-01-05 | 倪晋挺 | A kind of embedded sulfur dioxide monitoring and the Transport Machinery of early warning |
| CN107653924A (en) * | 2017-10-20 | 2018-02-02 | 倪晋挺 | A kind of excavating machinery of embedded carbon monoxide monitoring and early warning |
| CN111199011A (en) * | 2019-12-30 | 2020-05-26 | 上海中安电子信息科技有限公司 | Map-based vehicle nitrogen oxide emission monitoring method |
| CN111199011B (en) * | 2019-12-30 | 2024-01-30 | 上海中安电子信息科技有限公司 | Vehicle nitrogen oxide emission monitoring method based on map |
| CN111824224A (en) * | 2020-06-19 | 2020-10-27 | 杭州恒领科技有限公司 | Vehicle warning management device based on exhaust pollutant detects |
| CN113740489A (en) * | 2021-07-23 | 2021-12-03 | 潍柴动力股份有限公司 | Detection method and detection device of nitrogen-oxygen sensor |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170818 |
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| CF01 | Termination of patent right due to non-payment of annual fee |