CN102435441A - 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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- CN102435441A CN102435441A CN2011102649234A CN201110264923A CN102435441A CN 102435441 A CN102435441 A CN 102435441A CN 2011102649234 A CN2011102649234 A CN 2011102649234A CN 201110264923 A CN201110264923 A CN 201110264923A CN 102435441 A CN102435441 A CN 102435441A
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- Exhaust Gas After Treatment (AREA)
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 a kind of Light-Duty Gasoline Vehicle under the actual travel condition or the operating condition of rules and regulations vehicle carried type vehicle state and the moving vehicle of exhaust gas post-treatment device temperature down discharge the supplemental characteristic acquisition system.
Background technology
The long duration test of light-duty vehicle exhaust gas post-treatment device stand; Be with the durable process of bench simulation road; Through improving the aging test mode that catalyst temperature reduces the durable time; Its precondition is the exact acquisition of catalyst temperature in the road long duration test, therefore just needs a vehicular discharge supplemental characteristic acquisition system.
Existing catalyst temperature data acquisition technology is just carried out the catalyst temperature collection on engine pedestal, and the aging time of catalyst converter also is the experience digestion time, does not also form the acquisition system and the durable mode of stand of the standard of system.As for vehicle-mounted ternary catalyzing unit temperature acquisition; Be after the durable mode of stand appears in September, 2009 Europe 5/6 rules exhaust aftertreatment devices permanent seal cooling test (V-type test); Need 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,, make test findings have too many contingency and instability, thereby influence test figure result's authenticity and validity because road vehicle catalyst temperature influence factor is a lot.And exhaust aftertreatment devices accurately, correct temperature acquisition is prerequisite and basis (with reference to the EC692-2008) that the stand long duration test can be carried out.Therefore, needs are a kind of can standard, accurate, maneuverability and multiple functional moving vehicle discharging supplemental characteristic acquisition means.
Summary of the invention
Technical matters to be solved by this invention is, provide a kind of not only can monitoring driving person's driving habits, simultaneously can also the monitor vehicle state, calculate the moving vehicle discharging supplemental characteristic acquisition system of vehicle operating acceleration and deceleration.
The technical scheme that the present invention adopted is: a kind of moving vehicle discharging supplemental characteristic acquisition system; Comprise host computer; The CAN card that links to each other with host computer; The joint of described CAN card is connected on the CAN bus, and the vehicle condition tracking cell, driver's monitoring unit and the exhaust aftertreatment devices temperature test unit that link to each other with host computer through CAN bus and CAN card successively that are arranged on the moving vehicle are also arranged respectively.
Described CAN card is the CAN card with two CAN joints.
Described vehicle condition tracking cell includes the four-way data acquisition module that links to each other with the CAN bus, the GPS vehicle speedometer that links to each other with the four-way data acquisition module.
Described driver's monitoring unit includes the driver's control displayer that links to each other with the CAN bus respectively, the four-way data acquisition module, and described four-way data acquisition module connects pedal force sensor and pedal displacement sensor respectively.
Described pedal force sensor is arranged on the gas pedal, and described pedal displacement sensor is fixed on the displacement transducer fixed support that extends out from seat bottom.
Described exhaust aftertreatment devices temperature test unit includes the eight channel temperature acquisition modules that link to each other with the CAN bus, and described eight channel temperature acquisition modules connect high temperature resistant sets of temperature sensors.
Described high temperature resistant sets of temperature sensors includes a plurality of temperature sensors that are arranged on the ternary catalyzing unit place.
Vehicle OBD interface on the moving vehicle is successively through CAN bus and CAN card connection host computer.
Described vehicle condition tracking cell, driver's monitoring unit and exhaust aftertreatment devices temperature test unit provide power supply by vehicle-mounted cigar lighter power supply through the cigar lighter power supply tap respectively.
Described GPS vehicle speedometer also connects the vehicle speedometer antenna that is arranged on outside the car.
Moving vehicle discharging supplemental characteristic acquisition system 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 the vehicle operating acceleration and deceleration; But operational means (not only stipulated speed in the Europe 5/6 rules SRC circulation, also stipulated typical acceleration and deceleration) is provided for vehicle can make an experiment in strict accordance with the operating mode circulation of rules and regulations.At last, this systematic survey and write down the temperature of moving vehicle ternary catalyzing unit in the 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; Guaranteed that at first the driver operates according to certain rules standard; Reduced artificial error, guaranteed the authenticity of vehicle at the temperature data of the state exhaust aftertreatment devices of normal operation.
2, this system operation is simple, easy to carry, has solved the difficult problem of temperature acquisition operation in the road long duration test, helps the collecting test that vehicle detection mechanism carries out 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, but for the realization of the durable mode of stand lay a good foundation with operational means.
Description of drawings
Fig. 1 is a formation block diagram of the present invention;
Fig. 2 is a concrete structure synoptic diagram of the present invention.
Wherein:
1: vehicle-mounted cigar lighter power supply 2: vehicle OBD interface
3: pedal displacement sensor 4: the pedal force sensor
5: displacement transducer fixed support 6: the cigar lighter power supply tap
7: 8: eight channel temperature acquisition modules of high temperature resistant sets of temperature sensors
9: vehicle speedometer 10: the four-way data acquisition module
11: host computer 12:CAN card
13: data acquisition module 14: the vehicle speedometer antenna
15: driver's control displayer 16: the display instrument fixed pedestal
Embodiment
Below in conjunction with embodiment and accompanying drawing moving vehicle discharging supplemental characteristic acquisition system of the present invention is made detailed description.
The collection of catalyst temperature was the basic condition that the durable mode of stand realizes during car load went and circulates.Because condition of road surface and driver habit are not quite similar, the consistance of catalyst temperature data is caused influence in various degree with stable.Moving vehicle of the present invention discharging supplemental characteristic acquisition system has formed unified, standard and portable temperature acquisition system, this moving vehicle vehicle carried data collecting system has solved the means problem of obtaining true test figure.Guarantee the duty of driver's standard operation and tested vehicle, and on the basis of guaranteeing the various conditions in front, write down the temperature in the exhaust aftertreatment devices accurately.
Like Fig. 1, shown in Figure 2, moving vehicle discharging supplemental characteristic acquisition system of the present invention comprises host computer 11, and the CAN card 12 that links to each other with host computer 11, described CAN card 12 are the CAN cards with two CAN joints.The joint of described CAN card 12 is connected on the CAN bus, and the vehicle condition tracking cell A, driver's monitoring unit B and the exhaust aftertreatment devices temperature test unit C that link to each other with host computer 11 through CAN bus and CAN card 12 successively that are arranged on the moving vehicle are also arranged respectively.All test cells guarantee to satisfy can operate as normal with the car operation.The data acquisition software that this instance adopts is the IPEmotion professional version.
The described vehicle condition tracking cell A monitoring in real time and the speed of registration of vehicle reality, the mileage and the vehicle real time position of vehicle '; And calculate the real time acceleration of vehicle; Include the four-way data acquisition module 10 that links to each other with the CAN bus, the GPS vehicle speedometer 9 that links to each other with four-way data acquisition module 10.Described GPS vehicle speedometer 9 also connects the vehicle speedometer antenna 14 that is arranged on outside the car.GPS vehicle speedometer 9 applicable model described in this instance are vehicle speedometer-RACELOGIC.
Vehicle speedometer 9 can be accepted gps signal through antenna 14; Measure speed, distance travelled and the time corresponding of vehicle; And the acceleration in the vehicle acceleration and deceleration process of calculating correspondence; Various data are sent in the four-way data acquisition module 10, pass to host computer to data through CAN card 12 then, write down 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 monitoring in real time and the aperture of record gas pedal and the size of pedal force; Include the driver's control displayer 15 that is used to show testing cycle target vehicle speed and actual vehicle speed that links to each other with the CAN bus respectively; Four-way (except that temperature) data acquisition module 13, described four-way data acquisition module 13 connect pedal force sensor 4 and pedal displacement sensor 3 respectively.The driver is according to the recursion instruction steering vehicle of rules and regulations, and described pedal force sensor 4 is arranged on the gas pedal, and transmitting data in real time is given host computer, can monitor the driver and whether come steering vehicle in strict accordance with rules and regulations; Described pedal displacement sensor 3 is fixing through extend the displacement transducer fixed support 5 of coming from seat bottom, the variation of pedal travel in the monitor vehicle operational process.These data all send data to host computer 11 through four-way (except that temperature) data acquisition module 13 and CAN card 12, and note the data in the whole process, and data acquiring frequency is made as and is not less than 10 hertz.Select M-SENS008-3705 data acquisition module, MLA-1KNA pedal force sensor and displacement transducer-IMCOR-range 0-500mm in this instance respectively for use.
Described exhaust aftertreatment devices temperature test unit C; The temperature of after-treatment device in the real-time measuring vehicle operational process; Include the eight channel temperature acquisition modules 8 that link to each other with the CAN bus, described eight channel temperature acquisition modules 8 connect high temperature resistant sets of temperature sensors 7.Described high temperature resistant sets of temperature sensors 7 includes a plurality of temperature sensors that are arranged on the ternary catalyzing unit place: the first temperature sensor a that is arranged on the ternary catalyzing unit porch is specifically arranged, be arranged on the second temperature sensor b at 1 inch place of ternary catalyzing unit and be arranged on the three-temperature sensor c on the ternary catalyzing unit bed body.
Eight channel temperature acquisition modules 8 in this instance and the first～the three-temperature sensor a, b, c select M-THERMOK8 data acquisition module and 5mm-K type thermopair respectively for use.3 temperature sensors are installed in ternary catalyzing unit front end inlet place, vehicle bottom, 1 inch respectively and locate (being generally catalyst temperature peak temperature here) and a body place; This temperature sensor working temperature is very high; Therefore high temperature resistantly can not be lower than 1100 ℃; The data that temperature sensor is gathered are collected through eight channel temperature acquisition modules 8, pass to host computer 11 (computer) and recording real-time data to data through CAN card 12 then, and the temperature acquisition frequency is not less than 10 hertz.
Vehicle OBD interface 2 on the moving vehicle is connected host computer 11 through the CAN bus with CAN card 12 successively.Vehicle OBD interface data is a preliminary data, like auto vendor for the monitor vehicle situation, through corresponding C AN card agreement is provided, ECU data in the time of can be through the operation of native system monitor vehicle.Generally the SBC temperature acquisition can not connect vehicle OBD.
The total system power supply provides by vehicle-mounted cigar 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 cigar lighter power supply 1 through cigar lighter power supply tap 6 respectively.
Before using moving vehicle discharging supplemental characteristic acquisition system of the present invention, starting vehicle is system's power supply, opens main frame and searches for each test cell automatically, and search rationally is provided with each unit testing parameter in the software after accomplishing.Each cell data frequency acquisition preferably is provided with unanimity.
For data stability, vehicle speedometer 9 and eight channel temperature acquisition modules 8, four-way data acquisition module 10, data acquisition module 13 all are stuck in the bubble chamber the inside of aluminum.
Table 1 is that the used sensor of the present invention is adopted the module inventory with number
| Sequence number | Sensor | Function | Range |
| 1 | Temperature sensor a | Ternary catalyzing unit porch temperature | 0～2000℃ |
| 2 | Temperature sensor b | Ternary catalyzing unit is located temperature for 1 inch | 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 |
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) | The |
4 passages |
| 9 | Four-way data acquisition module 10 (MFRQ-4) | The |
4 passages |
| 10 | Number is adopted software | IPE-MOT-PRO | |
| 11 | |
|
|
| 12 | Cigar lighter power supply tap 6 | Power supply is provided | 24V |
| 13 | Driver's |
Show the testing cycle target vehicle speed | 0～150km/h |
Claims (10)
1. a moving vehicle discharges the supplemental characteristic acquisition system; Comprise host computer (11); The CAN card (12) that links to each other with host computer (11); The joint of described CAN card (12) is connected on the CAN bus, it is characterized in that, the vehicle condition tracking cell (A), driver's monitoring unit (B) and the exhaust aftertreatment devices temperature test unit (C) that link to each other with host computer (11) through CAN bus and CAN card (12) successively that are arranged on the moving vehicle are also arranged respectively.
2. moving vehicle discharging supplemental characteristic acquisition system according to claim 1 is characterized in that described CAN card (12) is the CAN card with two CAN joints.
3. moving vehicle discharging supplemental characteristic acquisition system according to claim 1; It is characterized in that; Described vehicle condition tracking cell (A) includes the four-way data acquisition module (10) that links to each other with the CAN bus, the GPS vehicle speedometer (9) that links to each other with four-way data acquisition module (10).
4. moving vehicle discharging supplemental characteristic acquisition system according to claim 1; It is characterized in that; Described driver's monitoring unit (B) includes the driver's control displayer (15) that links to each other with the CAN bus respectively; Data acquisition module (13), described data acquisition module (13) connect pedal force sensor (4) and pedal displacement sensor (3) respectively.
5. moving vehicle discharging supplemental characteristic acquisition system according to claim 4; It is characterized in that; Described pedal force sensor (4) is arranged on the gas pedal, and described pedal displacement sensor (3) is fixed on the displacement transducer fixed support (5) that extends out from seat bottom.
6. moving vehicle discharging supplemental characteristic acquisition system according to claim 1; It is characterized in that; Described exhaust aftertreatment devices temperature test unit (C) includes the eight channel temperature acquisition modules (8) that link to each other with the CAN bus, and described eight channel temperature acquisition modules (8) connect high temperature resistant sets of temperature sensors (7).
7. moving vehicle discharging supplemental characteristic acquisition system according to claim 5; It is characterized in that described high temperature resistant sets of temperature sensors (7) includes first temperature sensor (a), second temperature sensor (b) that is arranged on 1 inch place of ternary catalyzing unit that is arranged on the ternary catalyzing unit porch and is arranged on the three-temperature sensor (c) on the ternary catalyzing unit bed body.
8. moving vehicle discharging supplemental characteristic acquisition system according to claim 1 is characterized in that the vehicle OBD interface (2) on the moving vehicle is connected host computer (11) through the CAN bus with CAN card (12) successively.
9. moving vehicle discharging supplemental characteristic acquisition system 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 cigar lighter power supply (1) through cigar lighter power supply tap (6) respectively.
10. moving vehicle discharging supplemental characteristic acquisition system according to claim 3 is characterized in that described GPS vehicle speedometer (9) also connects the vehicle speedometer antenna (14) that is arranged on outside the car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110264923.4A CN102435441B (en) | 2011-09-08 | 2011-09-08 | Data acquisition system for emission parameter of moving vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110264923.4A CN102435441B (en) | 2011-09-08 | 2011-09-08 | Data acquisition system for emission parameter of moving vehicle |
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| CN102435441A true CN102435441A (en) | 2012-05-02 |
| CN102435441B 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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Cited By (5)
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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 |
| CN103196674A (en) * | 2013-03-18 | 2013-07-10 | 中国汽车技术研究中心 | 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 |
| CN111473977A (en) * | 2020-03-11 | 2020-07-31 | 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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| 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 |
| CN111473977A (en) * | 2020-03-11 | 2020-07-31 | 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 |
| 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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