CN102435441B - Data acquisition system for emission parameter of moving vehicle - Google Patents
Data acquisition system for emission parameter of moving vehicle Download PDFInfo
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- CN102435441B CN102435441B CN201110264923.4A CN201110264923A CN102435441B CN 102435441 B CN102435441 B CN 102435441B CN 201110264923 A CN201110264923 A CN 201110264923A CN 102435441 B CN102435441 B CN 102435441B
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- data acquisition
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Abstract
The invention relates to a data acquisition system for an emission parameter of a moving vehicle, which comprises a CAN (Controller Area Network) card connected to a host computer, wherein connectors of the CAN card are connected to a CAN bus; a vehicle condition tracking unit, a driver monitoring unit and a temperature test unit of an emission post-processing device which are connected to the host computer through the CAN bus and the CAN card are respectively arranged on the connectors in turn; the CAN card is the CAN card provided with two CAN connectors; the vehicle condition tracking unit is provided with a four-channel data acquisition module and a GPS (Global Position System) speed meter; the four-channel data acquisition module is connected to the CAN bus; the GPS speed meter is connected to the four-channel data acquisition module; the driver monitoring unit is provided with a driver monitoring display and a four-channel data acquisition module which are respectively connected to the CAN bus; and the four-channel data acquisition module is respectively connected to a pedal force sensor and a pedal shift sensor. The data acquisition system can be used for monitoring a driving habit of a driver, monitoring a vehicle state and calculating an accelerated or reduced running speed of the vehicle. An operating method for ensuring that the vehicle can be circularly tested in accordance with a working condition regulated by laws and regulations strictly is provided.
Description
Technical field
The present invention relates to a kind of motor vehicle emission test macro.Particularly relate to the vehicle carried type vehicle state of a kind of Light-Duty Gasoline Vehicle under actual travel condition or under the operating condition of rules and regulations and the data acquisition system for emission parameter of moving vehicle of exhaust gas post-treatment device temperature.
Background technology
The long duration test of light-duty vehicle exhaust gas post-treatment device stand, by the durable process of bench simulation road, reduce the aging test mode of durable time by improving catalyst temperature, its precondition is the accurate collection of catalyst temperature in road long duration test, therefore just needs a vehicular discharge supplemental characteristic acquisition system.
Existing catalyst temperature data acquisition technology is just carried out catalyst temperature collection on engine pedestal, and the aging time of catalyst converter is also experience digestion time, does not also form acquisition system and the durable mode of stand of the standard of system.As for vehicle-mounted ternary catalyzing unit temperature acquisition, that Europe 5/6 rules exhaust aftertreatment devices permanent seal cooling test (V-type test) occurs after the durable mode of stand in September, 2009, need to carry out vehicle-mounted catalyst temperature collection, up to the present go back the vehicle-mounted discharge after-treatment device temperature acquisition system of neither one standard.According to existing technology, because road vehicle catalyst temperature influence factor is a lot, make test findings there is too many contingency and instability, thereby affect authenticity and the validity of test figure result.And exhaust aftertreatment devices accurately, correct temperature acquisition is prerequisite and basis (with reference to the EC692-2008) that stand long duration test can be carried out.Therefore, needs are a kind of can standard, accurate, maneuverability and multiple functional moving vehicle discharge supplemental characteristic acquisition means.
Summary of the invention
Technical matters to be solved by this invention is, provides the one not only can monitoring driving person's driving habits, simultaneously can also monitor vehicle state, calculate the data acquisition system for emission parameter of moving vehicle of vehicle operating acceleration and deceleration.
The technical solution adopted in the present invention is: a kind of data acquisition system for emission parameter of moving vehicle, comprise host computer, the CAN card being connected with host computer, the joint of described CAN card is connected in CAN bus, also has respectively the vehicle condition tracking cell, driver's monitoring unit and the exhaust aftertreatment devices temperature test unit that are connected with host computer with CAN card by CAN bus successively that are arranged on moving vehicle.
Described CAN card is the CAN card with two CAN joints.
Described vehicle condition tracking cell includes the four-way data acquisition module being connected with CAN bus, the GPS vehicle speedometer being connected with four-way data acquisition module.
Described driver's monitoring unit includes the driver's control displayer being connected with CAN bus respectively, four-way data acquisition module, and described four-way data acquisition module connects respectively pedal force sensor and pedal displacement sensor.
Described pedal force sensor setting is in gas pedal, and described pedal displacement sensor is fixed on the displacement transducer fixed support extending out from seat bottom.
Described exhaust aftertreatment devices temperature test unit includes the eight channel temperature acquisition modules that are connected with CAN bus, and eight described channel temperature acquisition modules connect high temperature resistant sets of temperature sensors.
Described high temperature resistant sets of temperature sensors includes multiple temperature sensors that are arranged on ternary catalyzing unit place.
Vehicle OBD interface on moving vehicle is linked and is connect host computer by CAN bus and CAN successively.
Described vehicle condition tracking cell, driver's monitoring unit and exhaust aftertreatment devices temperature test unit provide power supply by vehicle-mounted cigarette lighter power supply by cigar lighter power supply tap respectively.
Described GPS vehicle speedometer also connects the vehicle speedometer antenna being arranged on outside car.
Data acquisition system for emission parameter of moving vehicle of the present invention, has solved the means problem of obtaining true test figure.This system not only can monitoring driving person's driving habits, simultaneously all right monitor vehicle state, calculate vehicle operating acceleration and deceleration, for vehicle can in strict accordance with the Operation mode cycle of rules and regulations test provide can operational means (in the 5/6 rules SRC circulation of Europe, not only stipulated speed, also stipulated typical acceleration and deceleration).Finally, this systematic survey record the temperature of moving vehicle ternary catalyzing unit in road circulation.
The invention has the beneficial effects as follows:
1, native system is integrated vehicle condition tracking cell, driver's monitoring unit and exhaust aftertreatment devices temperature test unit, first guaranteed that driver operates according to certain law stendard, reduce artificial error, guaranteed the authenticity of vehicle at the temperature data of the state exhaust aftertreatment devices of normal operation.
2, this system is simple to operate, easy to carry, has solved temperature acquisition in road long duration test and has operated difficult problem, is conducive to vehicle detection mechanism and carries out the collecting test of a large amount of vehicle-mounted temperature catalyst converters, has saved financial resources and material resources.
3, this system specifications the collection of the necessary catalyst temperature of stand long duration test, for the realization of the durable mode of stand is laid a good foundation and can operational means.
Accompanying drawing explanation
Fig. 1 is formation block diagram of the present invention;
Fig. 2 is concrete structure schematic diagram of the present invention.
Wherein:
1: vehicle-mounted cigarette lighter power supply 2: vehicle OBD interface
3: pedal displacement sensor 4: pedal force sensor
5: displacement transducer fixed support 6: cigar lighter power supply tap
7: 8: eight channel temperature acquisition modules of high temperature resistant sets of temperature sensors
9: vehicle speedometer 10: four-way data acquisition module
11: host computer 12:CAN card
13: data acquisition module 14: vehicle speedometer antenna
15: driver's control displayer 16: display instrument fixed pedestal
Embodiment
Below in conjunction with embodiment and accompanying drawing, data acquisition system for emission parameter of moving vehicle of the present invention is described in detail.
In car load driving pattern, the collection of catalyst temperature is the basic condition that the durable mode of stand realizes.Because condition of road surface and driver habit are not quite similar, the consistance on catalyst temperature data and stability cause impact in various degree.Data acquisition system for emission parameter of moving vehicle of the present invention has formed unified, standard and portable temperature acquisition system, this moving vehicle vehicle carried data collecting system solved the means problem of obtaining true test figure.Guarantee the duty of driver's standard operation and tested vehicle, and recorded accurately the temperature in exhaust aftertreatment devices on the basis of guaranteeing various conditions above.
As shown in Figure 1 and Figure 2, data acquisition system for emission parameter of moving vehicle of the present invention, comprises host computer 11, the CAN card 12 being connected with host computer 11, and described CAN card 12 is the CAN cards with two CAN joints.The joint of described CAN card 12 is connected in CAN bus, also has respectively vehicle condition tracking cell A, the driver's monitoring unit B and the exhaust aftertreatment devices temperature test unit C that are connected with host computer 11 with CAN card 12 by CAN bus successively that are arranged on moving vehicle.All test cells guarantee to meet with car operation and can normally work.The data acquisition software that this example adopts is IPEmotion professional version.
Mileage and the vehicle real time position of described vehicle condition tracking cell A Real-Time Monitoring and the speed of registration of vehicle reality, Vehicle Driving Cycle, and calculate the real time acceleration of vehicle, include the four-way data acquisition module 10 being connected with CAN bus, the GPS vehicle speedometer 9 being connected with four-way data acquisition module 10.Described GPS vehicle speedometer 9 also connects the vehicle speedometer antenna 14 being arranged on outside car.GPS vehicle speedometer 9 applicable model described in this example are vehicle speedometer-RACELOGIC.
Vehicle speedometer 9 can be accepted gps signal by antenna 14, measure speed, distance travelled and the corresponding time of vehicle, and calculate the acceleration in corresponding vehicle acceleration and deceleration process, various data are sent in four-way data acquisition module 10, then by CAN card 12, data are passed to host computer, record real-time car speed and acceleration.Vehicle speedometer speed acquisition frequency is for being not less than 10 hertz.
Described driver's monitoring unit B Real-Time Monitoring and record the aperture of gas pedal and the size of pedal force, include be connected with CAN bus respectively for showing driver's control displayer 15 of test cycle target vehicle speed and actual vehicle speed, four-way (except temperature) data acquisition module 13, described four-way data acquisition module 13 connects respectively pedal force sensor 4 and pedal displacement sensor 3.Driver is according to the recursion instruction steering vehicle of rules and regulations, and described pedal force sensor 4 is arranged in gas pedal, and transmitting data in real time, to host computer, can be monitored driver and whether carry out steering vehicle in strict accordance with rules and regulations; Described pedal displacement sensor 3 is fixing by extend the displacement transducer fixed support 5 of coming from seat bottom, the variation of pedal travel in monitor vehicle operational process.These data all send host computer 11 by four-way (except temperature) data acquisition module 13 and CAN card 12 to data, and record the data in whole process, and data acquiring frequency is made as and is not less than 10 hertz.In this example, select respectively M-SENS008-3705 data acquisition module, MLA-1KNA pedal force sensor and displacement transducer-IMCOR-range 0-500mm.
Described exhaust aftertreatment devices temperature test unit C, the temperature of after-treatment device in measuring vehicle operational process in real time, include the eight channel temperature acquisition modules 8 that are connected with CAN bus, eight described channel temperature acquisition modules 8 connect high temperature resistant sets of temperature sensors 7.Described high temperature resistant sets of temperature sensors 7 includes multiple temperature sensors that are arranged on ternary catalyzing unit place: specifically have be arranged on ternary catalyzing unit porch the first temperature sensor a, be arranged on the second temperature sensor b at 1 inch of place of ternary catalyzing unit and be arranged on the three-temperature sensor c on ternary catalyzing unit bed body.
Eight channel temperature acquisition modules 8 in this example and the first～the three-temperature sensor a, b, c select respectively M-THERMOK8 data acquisition module and 5mm-K type thermopair.3 temperature sensors are arranged on respectively vehicle bottom ternary catalyzing unit front end inlet place, 1 inch and locate (being generally catalyst temperature peak temperature here) and bed body place, this temperature sensor working temperature is very high, therefore high temperature resistant can not be lower than 1100 ℃, the data of temperature sensor collection are collected by eight channel temperature acquisition modules 8, then by CAN card 12, data are passed to host computer 11 (computer) recording real-time data, temperature acquisition frequency is not less than 10 hertz.
Vehicle OBD interface 2 on moving vehicle is connected host computer 11 by CAN bus with CAN card 12 successively.Vehicle OBD interface data is preliminary data, if auto vendor is for monitor vehicle situation, and by corresponding CAN card agreement is provided, ECU data can move by native system monitor vehicle time.SBC temperature acquisition can not connect vehicle OBD under normal circumstances.
Whole system power supply provides by vehicle-mounted cigarette lighter power supply.Described vehicle condition tracking cell A, driver's monitoring unit B and exhaust aftertreatment devices temperature test unit C provide power supply by vehicle-mounted cigarette lighter power supply 1 by cigar lighter power supply tap 6 respectively.
Before using data acquisition system for emission parameter of moving vehicle of the present invention, startup vehicle is system power supply, opens the each test cell of main frame automatic search, has searched for the rear each unit testing parameter in software that rationally arranges.Each cell data frequency acquisition preferably arranges unanimously.
For the stability of data, vehicle speedometer 9 and eight channel temperature acquisition modules 8, four-way data acquisition module 10, data acquisition module 13 are all stuck in the bubble chamber the inside of aluminum.
Table 1 is that the present invention's sensor used and number are adopted module inventory
| Sequence number | Sensor | Function | Range |
| 1 | Temperature sensor a | Ternary catalyzing unit porch temperature | 0～2000℃ |
| 2 | Temperature sensor b | 1 inch of ternary catalyzing unit is located temperature | 0～2000℃ |
| 3 | Temperature sensor c | Ternary catalyzing unit bed temperature | 0～2000℃ |
| 4 | Accelerator pedal displacement sensor 3 | Measure accelerator open degree | 0～500mm |
| 5 | Gas pedal power sensor 4 | Measure gas pedal power | 0-1000N |
| 6 | GPS vehicle speedometer 9 | Measure the speed of a motor vehicle | 250Km/h |
| 7 | Temperature collect module 8 (M-THE005-3715) | Temperature type sensor signal passage | 8 passages |
| 8 | Data acquisition module 13 (M-SENS008-3705) | Sensor signal passage | 4 passages |
| 9 | Four-way data acquisition module 10 (MFRQ-4) | Sensor signal passage | 4 passages |
| 10 | Number is adopted software | IPE-MOT-PRO | |
| 11 | CAN card 12 | Data communication | |
| 12 | Cigar lighter power supply tap 6 | Power supply is provided | 24V |
| 13 | Driver's control displayer 15 | Show test cycle target vehicle speed | 0～150km/h |
Claims (6)
1. a data acquisition system for emission parameter of moving vehicle, comprise host computer (11), the CAN card (12) being connected with host computer (11), the joint of described CAN card (12) is connected in CAN bus, it is characterized in that, also there is respectively the vehicle condition tracking cell (A) being connected with host computer (11) with CAN card (12) by CAN bus being successively arranged on moving vehicle, driver's monitoring unit (B) and exhaust aftertreatment devices temperature test unit (C), described driver's monitoring unit (B) includes the driver's control displayer (15) being connected with CAN bus respectively, data acquisition module (13), described data acquisition module (13) connects respectively pedal force sensor (4) and pedal displacement sensor (3), described pedal force sensor (4) is arranged in gas pedal, described pedal displacement sensor (3) is fixed on the displacement transducer fixed support (5) extending out from seat bottom, described vehicle condition tracking cell (A) includes the four-way data acquisition module (10) being connected with CAN bus, the GPS vehicle speedometer (9) being connected with four-way data acquisition module (10), described exhaust aftertreatment devices temperature test unit (C) includes the eight channel temperature acquisition modules (8) that are connected with CAN bus, eight described channel temperature acquisition modules (8) connect high temperature resistant sets of temperature sensors (7).
2. data acquisition system for emission parameter of moving vehicle according to claim 1, is characterized in that, described CAN card (12) is the CAN card with two CAN joints.
3. data acquisition system for emission parameter of moving vehicle according to claim 1, it is characterized in that, described high temperature resistant sets of temperature sensors (7) include be arranged on ternary catalyzing unit porch the first temperature sensor (a), be arranged on second temperature sensor (b) at 1 inch of place of ternary catalyzing unit and be arranged on the three-temperature sensor (c) on ternary catalyzing unit bed body.
4. data acquisition system for emission parameter of moving vehicle according to claim 1, is characterized in that, the vehicle OBD interface (2) on moving vehicle is connected host computer (11) by CAN bus with CAN card (12) successively.
5. data acquisition system for emission parameter of moving vehicle according to claim 1, it is characterized in that, described vehicle condition tracking cell (A), driver's monitoring unit (B) and exhaust aftertreatment devices temperature test unit (C) provide power supply by vehicle-mounted cigarette lighter power supply (1) by cigar lighter power supply tap (6) respectively.
6. data acquisition system for emission parameter of moving vehicle according to claim 1, is characterized in that, described GPS vehicle speedometer (9) also connects the vehicle speedometer antenna (14) being arranged on outside car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110264923.4A CN102435441B (en) | 2011-09-08 | 2011-09-08 | Data acquisition system for emission parameter of moving vehicle |
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|---|---|---|---|
| CN201110264923.4A CN102435441B (en) | 2011-09-08 | 2011-09-08 | Data acquisition system for emission parameter of moving vehicle |
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| CN102435441A CN102435441A (en) | 2012-05-02 |
| CN102435441B true CN102435441B (en) | 2014-07-09 |
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| CN201110264923.4A Expired - Fee Related CN102435441B (en) | 2011-09-08 | 2011-09-08 | Data acquisition system for emission parameter of moving vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103149926A (en) * | 2012-09-21 | 2013-06-12 | 华晨汽车集团控股有限公司 | Durability testing system for vehicle control device |
| CN103196674B (en) * | 2013-03-18 | 2015-09-09 | 中国汽车技术研究中心 | A kind of vehicle test environment information collection system in altitude environment |
| CN103969089A (en) * | 2014-04-04 | 2014-08-06 | 深圳职业技术学院 | Automobile exhaust sampling device and sampling method thereof |
| CN109738382A (en) * | 2018-12-28 | 2019-05-10 | 南京理工大学 | Intelligent detection device and its detection method of the vehicle exhaust to atmosphere pollution |
| CN111473977B (en) * | 2020-03-11 | 2021-11-23 | 中汽研汽车检验中心（天津）有限公司 | Method for testing consistency of temperature data of SCR (selective catalytic reduction) inlet and outlet of vehicle-mounted terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| ATE268007T1 (en) * | 1998-01-05 | 2004-06-15 | Us Environment | MODULAR REAL-TIME EXHAUST FLOW METER FOR MOVING VEHICLES AND EMISSIONS REPORTING SYSTEM |
| US7500436B2 (en) * | 2003-05-22 | 2009-03-10 | General Electric Company | System and method for managing emissions from mobile vehicles |
| CN1769856A (en) * | 2005-07-28 | 2006-05-10 | 西华大学 | Fault detection method and system for three-effect catalyzer |
| CN100485732C (en) * | 2006-03-14 | 2009-05-06 | 上海大众汽车有限公司 | Date collecting method for measuring automobile external noise |
| US20080167772A1 (en) * | 2007-01-04 | 2008-07-10 | Sterling Du | Method and system for processing and transmitting automotive emission data |
| CN101276488B (en) * | 2008-03-26 | 2012-07-25 | 中国科学院电工研究所 | Vehicular recording instrument capable of implementing intelligent CAN bus communication |
| CN101865700B (en) * | 2009-04-15 | 2012-06-20 | 上海沃巴弗电子科技有限公司 | Displacement sensor for detecting rotation angle of accelerator pedal of hybrid automobile |
| CN201453714U (en) * | 2009-07-10 | 2010-05-12 | 王汝田 | Vehicle-mounted air freshener |
| CN201465195U (en) * | 2009-09-07 | 2010-05-12 | 哈尔滨工程大学科技园发展有限公司 | Data acquisition system based on CAN bus |
| CN101704337B (en) * | 2009-09-25 | 2012-07-11 | 徐工集团工程机械有限公司 | Parallel-connection type hydraulic-electro hybrid power driving system |
| CN101909117A (en) * | 2010-08-18 | 2010-12-08 | 吉林大学 | Car phone device based on mobile phone |
| CN201867876U (en) * | 2010-11-03 | 2011-06-15 | 赵京磊 | Portable automobile part running state monitoring and recording device |
| CN201963411U (en) * | 2011-03-23 | 2011-09-07 | 温州市气动元件厂 | Independent automatic control device for electronic throttle |
| CN202213547U (en) * | 2011-09-08 | 2012-05-09 | 中国汽车技术研究中心 | Vehicle-mounted vehicle state monitoring and data acquisition system |
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