CN201413238Y - Automobile emission detecting system with simple transient working condition - Google Patents
Automobile emission detecting system with simple transient working condition Download PDFInfo
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- CN201413238Y CN201413238Y CN2009200973157U CN200920097315U CN201413238Y CN 201413238 Y CN201413238 Y CN 201413238Y CN 2009200973157 U CN2009200973157 U CN 2009200973157U CN 200920097315 U CN200920097315 U CN 200920097315U CN 201413238 Y CN201413238 Y CN 201413238Y
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- chassis dynamometer
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Abstract
The utility model relates to an automobile emission detecting system with a simple transient working condition. The automobile emission detecting system comprises a chassis dynamometer machine, a fivegas analyzer, a gas collector, a blower, a flow rate analyzer and a main-control computer, wherein, the chassis dynamometer machine is mounted below the detected vehicle; when the transient working condition load of an automobile running transient on the road is simulated, the five gas analyzer directly obtains concentration values of original emission gases such as CO, CO2, HC, NOX and O2 of theautomobile through a self-provided sampling probe of the instrument; the gas collector pumps the rest tail gas into the flow rate analyzer through the blower; the flow rate analyzer analyzes the resttail gas; and all data is transmitted to the main-control computer eventually. The utility model has the advantages of high measuring accuracy, and simple and convenient operation, and has the important significances in overall assessment of emission conditions of automobiles, evaluation of contamination emission total mass of automotive vehicles, and enactment of practicable contamination control specifications for the automotive vehicles.
Description
Technical field
The utility model belongs to the automotive inspection equipment field, relates to a kind of simple transient behavior motor vehicle emission detection system, can be widely used in departments such as vehicle production, car inspection and repair, environmental protection and agricultural machinery.
Background technology
Along with socioeconomic continuous development, the growth at full speed of city automobile owning amount, the auto-pollution thing has become the major issue that the many big cities of China face.Developing and set up more, science, advanced automotive emission detection method have become the important means of controlling vehicle emission pollution.Utilize chassis dynamometer analog machine motor-car under the various states of road (load) driving cycle, to detect main exhaust emission CO, the CO of vehicular emission
2, HC, NO
X, O
2Deng, thereby find high emission vehicle, to implementing vehicle emission pollution control significance is arranged at the motor vehicles of usefulness.
Abroad develop in this respect early, technology is ripe relatively, domestic development is later, the existing detection line overwhelming majority is to use the machine and the technology cost height of import, and it is asynchronous owing to what develop, instrument and equipment detection method and applicability are distinct, for lacking specific aim in the use of domestic motor vehicle production line, guarantee for the detection present situation of China is very difficult.To be equipped with the test analysis equipment of different model for the detection of different motor vehicles, very inconvenient and cause the waste of overlapping investment.
Summary of the invention
Problem to be solved in the utility model is, overcome the deficiencies in the prior art, a kind of simple transient behavior motor vehicle emission detection system is provided, the measuring accuracy height, easy and simple to handle, for the emission status of thoroughly evaluating vehicle, estimation motor vehicle emission gross mass and to formulate practicable vehicular pollutant control planning significant.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of simple transient behavior motor vehicle emission detection system that provides according to the utility model, comprise chassis dynamometer, five gas analyzer, gas collecting device, blower fan, traffic analyzer, main control computer, it is characterized in that: described chassis dynamometer is placed in the tested vehicle below, simulating vehicle is at travels down transient condition load, and the sampling probe that five gas analyzer carries by instrument directly obtains the original emission gases CO of automobile, CO
2, HC, NO
X, O
2Concentration value, the gas collecting device is analyzed another part tail gas by blower fan suction traffic analyzer, and final data all transfers to main control computer.
It is to take following technical scheme further to realize that the utility model solves its technical matters:
Aforesaid five gas analyzer is made up of gas sampling system, display processing system, Analysis on Fault Diagnosis system.
Detection platform, current vortex machine, tachogenerator, force cell, variable-frequence governor, electromagnetic clutch power, controllable silicon current source, industrial control microcomputer and controlling computer that preceding described chassis dynamometer is made up of underframe, cylinder, shaft coupling are formed.
Aforesaid traffic analyzer is made up of gas collecting flexible pipe, blower fan, flow tube, flow sensor, O2 zirconia sensor, temperature sensor, pressure transducer, gas waste gas flexible pipe.
The utility model compared with prior art has a bit significant and beneficial effect.
It can simulate the pollution level of actual road conditions reflection motor vehicle exhaust emission the utility model, can distinguish vehicle with much emission, exceeding standard rate and car up to standard in using car, effectively administer according to detecting the auxiliary defective vehicle of data, to lower the discharging of vehicular pollutant, strengthen the performance of motor vehicle, cooperate government to detect the enforcement of system.Simultaneously the motor vehicle that detects is carried out fault analysis, far is provided, avoid motor vehicle to operate with failure.It not only has automotive emission check and analysis function, and has very strong versatility.
Embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 structure principle chart of the present utility model;
Fig. 2 sampling work process flow diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, embodiment, structure, feature and effect thereof that foundation the utility model is provided, describe in detail as after.
Shown in Fig. 1-2, a kind of simple transient behavior motor vehicle emission detection system, comprise chassis dynamometer, five gas analyzer, gas collecting device, blower fan, traffic analyzer, main control computer, it is characterized in that: described chassis dynamometer is placed in the tested vehicle below, simulating vehicle is at travels down transient condition load, and the sampling probe that five gas analyzer carries by instrument directly obtains the original emission gases CO of automobile, CO
2, HC, NO
X, O
2Concentration value, the gas collecting device is analyzed another part tail gas by blower fan suction traffic analyzer, and final data all transfers to main control computer.
It is as follows that system detects step:
1, starts, carry out system's setting, comprise that the setting of equipment serial port, server setting, device authentication numbering are provided with, and can change the parameter list setting;
2, System self-test comprises chassis dynamometer self check and five gas analyzer self check;
3, system calibrating, whether the judgment device demarcation cycle arrives, if arrive, then carries out system calibrating, comprises the demarcation of chassis dynamometer and five gas analyzer;
4,, determine the loading power of chassis dynamometer and the effluent standard limit value of this tested vehicle according to the parameter information of tested vehicle;
5, this tested vehicle is carried out the 195s simple transient behavior and detect, comprise the steps:
1. main control computer is gathered the per second speed of a motor vehicle, dynamometer machine moment, engine speed, CO, CO in real time
2, HC, NO
X, O
2Original concentration, dilution CO
2Concentration, dilution exhaust flow, temperature and pressure data;
2. dynamometer machine is loaded, monitor in real time that continuous 3 seconds of each device talk situation, the speed of a motor vehicle are overproof, speed of a motor vehicle accumulative total 15 seconds is overproof, load continuous 3 seconds overproof, load accumulative total 15 seconds overproof, to gasoline vehicle CO+CO
2＜6%, to other fuel vehicle CO+CO
2＜4%, crude sampling system low discharge, dilution natural gas gathering system low discharge, dilution ratio are crossed low situation, if the discontented sufficient requirement of arbitrary monitoring project, test restarts, and detect requirement condition until satisfying 195 seconds simple transient behaviors;
3. according to the environment weather parameter, calculate dilution correction factor DCF and humidity correction factor Kh, carry out CO, CO
2, HC, NO
X, O
2The corrected Calculation of original measurement concentration and air-fuel ratio calculate, to the normal flow corrected Calculation of dilution exhaust flow, by calculating dilution ratio, obtain original exhaust flow, thereby calculate per second CO, CO
2, HC, NO
X, O
2Mass discharge result;
4. after 195 seconds simple transient behaviors are all finished, calculate CO, CO under the whole working condition
2, HC, NO
X, O
2Mass discharge result, the line data of going forward side by side storage;
6, show and print the data report of this tested vehicle testing result:
1. the discharging gross mass that shows each pollutant;
2. judge that according to emission limit testing result is for " qualified " or " defective " and print examining report;
3. demonstration, playback and printing NO, CO, CO
2With 4 concentration curves of HC and 4 figure-of-merit curves, original CO
2With dilution CO
212 test curves such as concentration curve, actual vehicle speed curve, air-fuel ratio curve.
Claims (4)
1. simple transient behavior motor vehicle emission detection system, comprise chassis dynamometer, five gas analyzer, gas collecting device, blower fan, traffic analyzer, main control computer, it is characterized in that: described chassis dynamometer is placed in the tested vehicle below, simulating vehicle is at travels down transient condition load, and the sampling probe that five gas analyzer carries by instrument directly obtains the original emission gases CO of automobile, CO
2, HC, NO
x, O
2Concentration value, the gas collecting device is analyzed another part tail gas by blower fan suction traffic analyzer, and final data all transfers to main control computer.
2. a kind of simple transient behavior motor vehicle emission detection system according to claim 1, it is characterized in that: described five gas analyzer is made up of gas sampling system, display processing system, Analysis on Fault Diagnosis system.
3. a kind of simple transient behavior motor vehicle emission detection system according to claim 1, it is characterized in that: the detection platform that described chassis dynamometer is made up of underframe, cylinder, shaft coupling, current vortex machine, tachogenerator, force cell, variable-frequence governor, electromagnetic clutch power, controllable silicon current source, industrial control microcomputer and controlling computer are formed.
4. a kind of simple transient behavior motor vehicle emission detection system according to claim 1 is characterized in that: described traffic analyzer is made up of gas collecting flexible pipe, blower fan, flow tube, flow sensor, O2 zirconia sensor, temperature sensor, pressure transducer, gas waste gas flexible pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200973157U CN201413238Y (en) | 2009-06-25 | 2009-06-25 | Automobile emission detecting system with simple transient working condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200973157U CN201413238Y (en) | 2009-06-25 | 2009-06-25 | Automobile emission detecting system with simple transient working condition |
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| Publication Number | Publication Date |
|---|---|
| CN201413238Y true CN201413238Y (en) | 2010-02-24 |
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ID=41715121
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| CN2009200973157U Expired - Fee Related CN201413238Y (en) | 2009-06-25 | 2009-06-25 | Automobile emission detecting system with simple transient working condition |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018051A (en) * | 2011-09-21 | 2013-04-03 | 通用汽车环球科技运作有限责任公司 | Method and system for simulating various engine operating conditions to evaluate engine emissions test equipment |
| CN103267645A (en) * | 2013-05-02 | 2013-08-28 | 佛山分析仪有限公司 | Automobile emission flow analysis meter with gas collection flexible pipe disengaged detection and method of automobile emission flow analysis meter |
| CN103543016A (en) * | 2013-10-18 | 2014-01-29 | 联合汽车电子有限公司 | Complete vehicle operating-mode exhaust gas emission testing system |
| CN104777082A (en) * | 2015-04-14 | 2015-07-15 | 首都师范大学 | Device and method for detecting motor vehicle exhaust |
| CN105675824A (en) * | 2016-03-15 | 2016-06-15 | 苏州华业检测技术服务有限公司 | Simple system for testing emission of motor vehicle through transient working condition method |
| CN109882397A (en) * | 2019-03-07 | 2019-06-14 | 广西玉柴机器股份有限公司 | Air compressor PEMS test method |
| CN109945923A (en) * | 2019-03-22 | 2019-06-28 | 湖北文理学院 | A kind of vehicle mounted tail gas discharge measuring fexible unit |
| CN110132605A (en) * | 2019-05-21 | 2019-08-16 | 北京工业大学 | A kind of diesel engine NOxThan the rapid detection method of discharge |
| CN111504735A (en) * | 2020-06-09 | 2020-08-07 | 天津内燃机研究所（天津摩托车技术中心） | Low CO generator set emission test system and test method |
| CN112882407A (en) * | 2020-12-31 | 2021-06-01 | 闳约深美江苏信息技术开发有限公司 | Automobile exhaust real-time monitoring equipment based on Internet of things |
| CN115638839A (en) * | 2022-11-16 | 2023-01-24 | 中汽科技(北京)有限公司 | Vehicle ammonia emission test system and test method thereof |
-
2009
- 2009-06-25 CN CN2009200973157U patent/CN201413238Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018051A (en) * | 2011-09-21 | 2013-04-03 | 通用汽车环球科技运作有限责任公司 | Method and system for simulating various engine operating conditions to evaluate engine emissions test equipment |
| CN103018051B (en) * | 2011-09-21 | 2016-05-18 | 通用汽车环球科技运作有限责任公司 | Simulate various engine operating conditions and assess the method and system of emission testing equipment |
| CN103267645A (en) * | 2013-05-02 | 2013-08-28 | 佛山分析仪有限公司 | Automobile emission flow analysis meter with gas collection flexible pipe disengaged detection and method of automobile emission flow analysis meter |
| CN103543016B (en) * | 2013-10-18 | 2016-09-28 | 联合汽车电子有限公司 | Car load condition tail gas system for testing discharge |
| CN103543016A (en) * | 2013-10-18 | 2014-01-29 | 联合汽车电子有限公司 | Complete vehicle operating-mode exhaust gas emission testing system |
| CN104777082A (en) * | 2015-04-14 | 2015-07-15 | 首都师范大学 | Device and method for detecting motor vehicle exhaust |
| CN104777082B (en) * | 2015-04-14 | 2017-10-24 | 首都师范大学 | Design of Vehicle Tail Gas Analyzer and its method for detection |
| CN105675824A (en) * | 2016-03-15 | 2016-06-15 | 苏州华业检测技术服务有限公司 | Simple system for testing emission of motor vehicle through transient working condition method |
| CN109882397A (en) * | 2019-03-07 | 2019-06-14 | 广西玉柴机器股份有限公司 | Air compressor PEMS test method |
| CN109945923A (en) * | 2019-03-22 | 2019-06-28 | 湖北文理学院 | A kind of vehicle mounted tail gas discharge measuring fexible unit |
| CN110132605A (en) * | 2019-05-21 | 2019-08-16 | 北京工业大学 | A kind of diesel engine NOxThan the rapid detection method of discharge |
| CN111504735A (en) * | 2020-06-09 | 2020-08-07 | 天津内燃机研究所（天津摩托车技术中心） | Low CO generator set emission test system and test method |
| CN112882407A (en) * | 2020-12-31 | 2021-06-01 | 闳约深美江苏信息技术开发有限公司 | Automobile exhaust real-time monitoring equipment based on Internet of things |
| CN115638839A (en) * | 2022-11-16 | 2023-01-24 | 中汽科技(北京)有限公司 | Vehicle ammonia emission test system and test method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 300112 Tianjin City, North Industrial Park Xiqing District No. 18 Jin Xia Lu Patentee after: Tianjin Shengwei Development of Science Co., Ltd. Address before: 300112 No. 25, Xiaoxinzhuang Avenue, Hongqiao District, Tianjin Patentee before: Tianjin Shengwei Development of Science Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20110625 |