CN2677919Y - Underground detection device for pollutant discharge of gasoline vehicle stead-state loading operation condition - Google Patents
Underground detection device for pollutant discharge of gasoline vehicle stead-state loading operation condition Download PDFInfo
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- CN2677919Y CN2677919Y CN 03265811 CN03265811U CN2677919Y CN 2677919 Y CN2677919 Y CN 2677919Y CN 03265811 CN03265811 CN 03265811 CN 03265811 U CN03265811 U CN 03265811U CN 2677919 Y CN2677919 Y CN 2677919Y
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- chassis dynamometer
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- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 27
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 27
- 239000003502 gasoline Substances 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 title abstract description 13
- 239000000523 sample Substances 0.000 claims abstract description 27
- 230000003068 static effect Effects 0.000 claims abstract description 17
- 238000005070 sampling Methods 0.000 claims abstract description 9
- 238000012360 testing method Methods 0.000 claims description 28
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 71
- 238000000034 method Methods 0.000 description 18
- 238000005259 measurement Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 6
- 230000004044 response Effects 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 210000004712 air sac Anatomy 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000013028 emission testing Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000009183 running Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to an underground detection device for pollutant discharge of gasoline vehicle stead-state loading operation condition, which comprises a chassis dynamometer and a console. A main control computer and a five-gas analyzer connected with the main control computer are placed in the console, and a printer and a display are placed on the console. The chassis dynamometer adopts a German MAHAASMP type chassis dynamometer which is connected to the serial port of the main control computer; the chassis dynamometer is provided with a static calibration device with underground installation and two-way rotating detection, an air compressor is connected with the chassis dynamometer through an air passage; the probe of a sampling system is inserted in the exhaust pipe of a vehicle, and the other end is connected with a five-gas analyzer; an engine tachometer is installed on the five-gas analyzer. The utility model has the advantages of reasonable configuration, advanced and stable performance, perfect function, accurate detection, high efficiency, favorable repeatability, safe and convenient use and reliable quality.
Description
Technical field
The utility model relates to tail-gas from gasoline automobiles pollutant emission pick-up unit, especially a kind ofly mo(u)ld bottom half gasoline car static loading working condition pollutant emission pick-up unit.
Background technology
At present, the technology status based on the ground mo(u)ld bottom half gasoline car static loading working condition pollutant emission pick-up unit of MAHA ASM BF type chassis dynamometer and MAHA MGT 5 five gas analyzers is zero.
The ground mo(u)ld bottom half gasoline car static loading working condition pollutant emission pick-up unit of domestic other configuration of employing exists the loading power error big, and test car speed is inaccurate, CO, CO
2, HC, NO and O
2Concentration detect poor repeatability, the environment weather parameter can not be gathered in real time, the problem of poor reliability.
The utility model content
The purpose of this utility model is in order to solve the problem that existing ground mo(u)ld bottom half gasoline car static loading working condition pollutant emission pick-up unit exists, a kind of stable performance is provided, perfect in shape and function, detect accurately, the efficient height, good reproducibility, safe in utilization, convenient, reliable quality ground mo(u)ld bottom half gasoline car static loading working condition pollutant emission pick-up unit.
Pick-up unit described in the utility model comprises chassis dynamometer and operator's console.In operator's console, be placed with main control computer and connected five gas analyzers, on operator's console, be placed with printer and display, printer is connected with main control computer respectively with display, described chassis dynamometer adopts German MAHA ASM BF type chassis dynamometer, be connected on the serial ports of main control computer, has the static demarcating device, absorption maximum power is 110kW, the highest test speed of a motor vehicle is 160km/h, mechanical rotation inertia is 907kg, the ground mo(u)ld bottom half is installed, the test axle heavily is 2.7 tons, two-way rotation test, and drive motor power is 2.2kW, air compressor is connected with chassis dynamometer by gas circuit, the probe of sampling system inserts in the gas outlet of automobile, and the other end is connected with five gas analyzers, and engine speed meter and intelligent meteorological card are installed on five gas analyzers, dead ahead at tested vehicle also is provided with cooling blower, and the front upper place is provided with swamper's instrument.
Described engine speed meter comprises rotating speed card and induction speed probe, and induction speed probe is installed in optional position in the engine ignition circuit, and the rotating speed card is installed in five gas analyzers.
Described five gas analyzers have CO, CO
2, HC, NO and O
2Sensor.
Pick-up unit configuration described in the utility model is reasonable, stable performance, and perfect in shape and function detects accurately, the efficient height, good reproducibility, safe in utilization, convenient, reliable quality ground mo(u)ld bottom half gasoline car static loading working condition pollutant emission pick-up unit.
Description of drawings
Fig. 1 is a pick-up unit structural representation of the present utility model;
Fig. 2 is the structural drawing of chassis dynamometer;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the gas circuit structure figure of five gas analyzers;
Fig. 5 is pollutant emission detection computations machine operation control block diagram.
Below in conjunction with accompanying drawing pick-up unit described in the utility model is further specified.
Embodiment
Referring to Fig. 1, pick-up unit described in the utility model comprises chassis dynamometer 6 and operator's console 9.In operator's console 9, be placed with main control computer 10 and connected five gas analyzers 13, on operator's console 9, be placed with printer 11 and display 12, printer 11 is connected with main control computer 10 respectively with display 12, described chassis dynamometer 6 adopts German MAHA ASMBF type chassis dynamometer, be connected on the serial ports of main control computer, has the static demarcating device, absorption maximum power is 110kW, the highest test speed of a motor vehicle is 160km/h, mechanical rotation inertia is 907kg, and the ground mo(u)ld bottom half is installed, and the test axle heavily is 2.7 tons, two-way rotation test, drive motor power is 2.2kW, and its diameter of cylinder is 217mm, and inertia simulation can be under the load of the test vehicle speed range of (0～22.5) km/h and minimum 18.6kW, have the quality between simulation (907～2722) kg, produce (0～1.47) m/s
2The ability of acceleration.Air compressor 3 is connected with chassis dynamometer 6 by gas circuit 5, and the probe of sampling system 8 inserts in the gas outlet of automobile, and the other end is connected with five gas analyzers 13, and engine speed meter and intelligent meteorological card 14 are installed on five gas analyzers.Dead ahead at tested vehicle 7 also is provided with cooling blower 2, and the front upper place of tested vehicle is provided with swamper's instrument 1.
Described engine speed meter comprises rotating speed card and induction speed probe, and induction speed probe can be installed in optional position in the engine ignition circuit, and the rotating speed card is installed in five gas analyzers, is used to measure engine speed.The utility model adopts German MAHA engine speed meter.Engine rotational speed signal and CO, CO
2, HC, NO, O
2Concentration signal sends to main control computer together, has guaranteed the synchronism of engine speed model and pollutant levels signals collecting.Response time, accuracy was ± 3% less than 0.5 second.
The meteorological card of described intelligence 14 measures environment temperature, atmospheric pressure and relative humidity data by temperature sensor, barometric pressure sensor and relative humidity sensor.Meteorological card is installed in five gas analyzers, and the concentration signal of environment weather parameter signal and pollutant sends to main control computer together, has guaranteed the synchronism of environment weather parameter signal and pollutant levels signals collecting.Meteorological card described in the utility model adopts the meteorological card of German MAHA intelligence, its relative humidity range ability is (5～95) %, accuracy is full scale ± 3%, the temperature range ability is (18～60) ℃, accuracy is ± 1.7 ℃, the atmospheric pressure range ability is (80～110) kPa, and when environment temperature was (2～43) ℃, accuracy was ± 3%.
Described chassis dynamometer is used for tested vehicle is carried out Loading Control and speed detection, adopts German MAHA ASM BF type chassis dynamometer.Its diameter of cylinder is 217mm.Inertia simulation can have the quality between simulation (907～2722) kg under the load of the test vehicle speed range of (0～22.5) km/h and minimum 18.6kW, produce (0～1.47) m/s
2The ability of acceleration.After control module sent instruction, torque responsive reached 90% of desired value in 200ms, reached more than 98% of desired value in the 300ms, and the peak torque buckles does not exceed 25% of desired value.The load accuracy is ± 0.2kW, the speed accuracy is ± 0.1km/h, load power when being 11kW the coasting time error be not more than ± 2%, when other loads power the coasting time error be not more than ± 4%, become and load coasting time, static demarcating and the accuracy of loading response time and all satisfy U.S. BAR 97 authentication techniques and require and the requirement of Beijing environmental protection pattern authentication techniques.U.S. BAR 97 authentication and Beijing environmental protection type approvals have been passed through.Programming operations, the communication of RS232 agreement.Developed in the operation control software preheating relevant, static demarcating, parasitic power test with chassis dynamometer, permanent load slide test, variable load slide test, response time test, perseverance turn round adjustings, constant speed regulate, cross load protection, rotating speed protection, overheating protection and over-voltage protection function module, thereby guaranteed the accuracy and the stability of loading of chassis dynamometer power and test car speed.
For clarity sake, below its structure is simply introduced.Referring to Fig. 2 and Fig. 3, the master rotor 16 of described chassis dynamometer, 20 and auxiliary cylinder 25 and 27 by bearings on framework 30, left side master rotor 16 and right master rotor 20 connect together by shaft coupling 18, auxiliary cylinder 25 and 27 connects together by drive motor 17 and shaft coupling 26, main, auxiliary cylinder links by belt transmission 24, eddy current absorption dynamometer 22 links by shaft coupling 21 and master rotor, speed probe 28 is installed in the outer end of left master rotor 16, framework 30 both sides respectively have 5 holes 15, be used to install position-limited wheel 29, when tested vehicle moves on cylinder, need overcome the braking power that applies by eddy current absorption dynamometer 22, measure the speed of cylinder by speed probe 28.
Described five gas analyzers 13 have CO, CO
2, HC, NO and O
2Sensor is used for detecting tail gas CO, CO
2, HC, NO and O
2Concentration.The utility model adopts German MAHA MGT 5 types five gas analyzers, and its principle is: CO, HC and CO
2Adopt not beam split infrared method, NO and O
2Adopt electrochemical process.Range ability and accuracy are: HC is (0～2000) * 10 in range ability
-6The time, relative accuracy is ± 3%, absolute accuracy is 4ppmh, is (2001～5000) * 10 in range ability
-6The time, relative accuracy is ± 5%, is (5001～9999) * 10 in range ability
-6The time, relative accuracy is ± 10%; When CO was (0.00～10.00) % in range ability, relative accuracy was ± 3%, and absolute accuracy is 0.02%, and when range ability was (10.01～14.00) %, relative accuracy was ± 5%; CO
2When range ability was (0.1～16.0) %, relative accuracy was ± 3%, and absolute accuracy is 0.3%, and when range ability was (16.01～18.00) %, relative accuracy was ± 5%; NO is (0～4000) * 10 in range ability
-6The time, relative accuracy is ± 4%, absolute accuracy is 25 * 10
-6, be (4001～8000) * 10 in range ability
-6The time, relative accuracy is ± 8%; O
2When range ability was (0.0～25.0) %, relative accuracy was ± 5%, and absolute accuracy is 0.1%.Repeatability is: HC is (0～1400) * 10 in range ability
-6The time, relative error is ± 2%, absolute error is 3ppmh, is (1401～2000) * 10 in range ability
-6The time, relative error is ± 3%; When CO was (0.00～7.00) % in range ability, relative error was ± 2%, and absolute error is 0.02%, and when range ability was (7.01～10.00) %, relative error was ± 3%; CO
2When range ability was (0.0～10.0) %, relative error was ± 2%, and absolute error is 0.1%, and when range ability was (10.01～16.00) %, relative error was ± 3%; NO is (0～4000) * 10 in range ability
-6The time, relative error is ± 3%, absolute error is 20 * 10
-6O
2When range ability was (0.0～25.0) %, relative error was ± 3%, and absolute error is 0.1%.The T90 rising response time is: HC, CO and CO
2Less than 3.5 seconds, NO was less than 4.5 seconds, O
2Less than 7.5 seconds.The T10 decline response time is: HC, CO and CO
2Less than 3.7 seconds, NO was less than 4.7 seconds, O
2Less than 7.7 seconds.Other performance is diluted as anti-, anti-electromagnetic interference (EMI), and anti-vibrating and impact, the HC residual quantity is hung up, zero point drift, the drift of span point, propane equivalent coefficient, inert gas is interfered, the air-flow low discharge, and air-flow sensitivity is all satisfied U.S. BAR 97 authentication techniques and is required and the requirement of Beijing environmental protection pattern authentication techniques.Passed through Beijing environmental protection type approval.The communication of LON TALKS agreement.Developed functional modules such as the preheating relevant, leakage rate inspection, zeroing, the surrounding air HC determination of residual amount, the sampling system HC determination of residual amount, blowback, zero gas demarcation, high range demarcation, lower range demarcation in the operation control software, thereby guaranteed that five gas analyzers are to CO, CO with five gas analyzers
2, HC, NO and O
2The accuracy and the stability of concentration analysis.
Introduce its gas circuit structure below.Referring to Fig. 4, during the pollutant emission measurement of concetration, tail gas sample gas enters moisture trap 33 from sample gas inlet 34, enters CO, CO by aspiration pump 58 suctions through two-position three way magnetic valve 60 and 41, filter cleaner 42
2Measure these three kinds of pollutant levels with HC sensor 43, behind threeway 49 and 44, enter O respectively again
2 Sensor 40 and NO sensor 47 are measured O
2With the concentration of NO, the sample gas of measured mistake outside exporting 45 and 46 discharge machines, unwatering pump 36 runnings simultaneously, isolated water outside the filter cleaner 35 and the 37 discharge machines of outlet.High range standard gas timing signal, solenoid valve 55,56,57 and 60 powers on, and has connected the 2nd gas circuit of demarcating mouth 50 and each sensor, and high range standard gas is demarcated mouth 50 from the 2nd and is entered, and successively enters CO, CO through aspiration pump 58, solenoid valve 41 and filter cleaner 42
2With HC sensor 43, O
2Sensor 40 and NO sensor 47 couples of CO, CO
2, HC, O
2Demarcate with the concentration of NO.Lower range standard gas timing signal, solenoid valve 55,56 and 60 powers on, and has connected and has demarcated the 1st mouthful of 51 gas circuit with each sensor, and lower range standard gas is demarcated mouthfuls 51 from the 1st and is entered through aspiration pump 58, solenoid valve 41 and filter cleaner 42 and successively enter CO, CO
2With HC sensor 43, O
2Sensor 40 and NO sensor 47 couples of CO, CO
2, HC, O
2Demarcate with the concentration of NO.Zero standard gas timing signal, solenoid valve 55 and 60 powers on, and has connected the gas circuit of zero gas demarcation mouth 52 and each sensor, and zero standard gas enters through aspiration pump 58, solenoid valve 41 and filter cleaner 42 priorities from demarcation mouth 52 and enters CO, CO
2With HC sensor 43, O
247 pairs of zero gas of sensor 40 and NO sensor are demarcated.During the surrounding air measurement, solenoid valve 60 powers on, and has connected the gas circuit of surrounding air measurement mouth 53 with each sensor, and surrounding air enters through aspiration pump 58, solenoid valve 41, filter cleaner 42 and 54 priorities from measurement mouth 53 and enters CO, CO
2With HC sensor 43, O
2Sensor 40 and NO sensor 47 couples of CO, CO
2, HC, O
2Measure with the concentration of NO.When carrying out blowing function, solenoid valve 39 and 60 powers on, connected the gas circuit of compressed air inlet 38 with the inlet 34 of tail gas sample gas, cut off the gas circuit that enters each sensor, pressurized air 38 is discharged through solenoid valve 39, threeway 62, moisture trap 33, tail gas sample gas inlet 34 to sample lines and sampling probe from entering the mouth.
Referring to Fig. 5, the Lifter Raised of operating control procedure instruction chassis dynamometer, tested vehicle reaches chassis dynamometer, falls lifting jack.At the tested information of vehicles of information of vehicles input interface typing of operating control procedure,, determine the braking power and the emission limit of the eddy current absorption dynamometer of chassis dynamometer according to tested information of vehicles.Tested vehicle moves on chassis dynamometer with the BASM5024 operating mode, and operating control procedure is gathered and write down the speed of a motor vehicle in real time, loads NO, CO, the CO of power, engine speed, tail gas sample gas
2, HC and O
2Concentration, environment temperature, atmospheric pressure, relative humidity data.In BASM5024 operating mode testing process, fuel type that uses according to tested vehicle and environment weather parameter are calculated dilution correction factor and humidity correction factor in real time with NO, CO, CO to gathering
2Carry out corrected Calculation with HC concentration.To each device talk situation, continuous 2 seconds of the speed of a motor vehicle is overproof, and speed of a motor vehicle accumulative total 5 seconds is overproof, load continuous 2 seconds overproof, it is overproof to load accumulative total 5 seconds, to gasoline vehicle CO+CO
2＜6%, to other fuel vehicle CO+CO
2＜4%, engine speed is overproof, sample gas low discharge, and the working condition measurement time, tested vehicle operation state, tested vehicle utilization situation is carried out testing process and is monitored in real time.If the discontented sufficient requirement of arbitrary monitoring project, the zero setting again of BASM5024 operating mode, image data not, test restarts, and detects requirement condition until satisfying the BASM5024 operating mode.In total test duration, qualified if the discharging of the BASM5024 operating mode of tested vehicle detects, detection stops, and judges that this car discharging is qualified.If it is defective that the discharging of the BASM5024 operating mode of tested vehicle detects, carry out the BASM2540 operating mode and detect.Under this operating mode, operating control procedure loads eddy current absorption dynamometer according to the BASM2540 operating mode, gathers, writes down, calculates the same with the BASM5024 operating mode with the project of monitoring in real time.If it is qualified that the BASM2540 operating mode detects, judge that this car discharging is qualified, otherwise be defective.After detecting end, print examining report, rise lifting jack, tested vehicle withdraws from chassis dynamometer, or carries out next car discharging and detect, or closes detection system.
The operation control software of monitoring device described in the utility model is based on full simplified form of Chinese Character interface and Microsoft's Window platform, have and directly enter inspection procedure, Environmental Protection Agency's authentication marks, the device authentication numbering, chassis dynamometer loads, data acquisition, communications setting, work order, device responds, equipment, tested vehicle and testing process state show, the maloperation prompting, the information of vehicles inquiry, typing and record, clock setting, safe operation, locking and release, three grades of password setting, testing process monitoring, the engine speed checking, the equipment preheating, self check and demarcation, chassis dynamometer slides test, the blowback time set, license plate number is imported flexibly, detect serial number and generate dual-fuel automobile fast detecting, continuous detecting automatically, test data is calculated and is revised, the day-to-day operation daily record, database, statistical report form, can change parameter list, the data field summary, the emission limit inquiry, emission result is judged, print screen, examining report is printed, help file, and A coils backup, training pattern, functions such as detection of fuel tank cap sealing and flexible upgrading.Meet the requirement of " the gasoline car static loading working condition pollutant emission computer control testing regulations " of DB11/122-2000 " the gasoline car stable state loads pollutant emission standard " and Beijing Environmental Protection Agency.Operation control software comprises pollutant emission testing process monitoring project in real time: continuous 2 seconds of each device talk situation, the speed of a motor vehicle are overproof, speed of a motor vehicle accumulative total 5 seconds is overproof, load continuous 2 seconds overproof, load accumulative total 5 seconds overproof, to gasoline vehicle CO+CO
2＜6%, to other fuel vehicle CO+CO
2＜4%, overproof, the sample gas low discharge of engine speed, working condition measurement time, tested vehicle operation state, tested vehicle utilization situation have guaranteed that discharging detects quality.Operation control software is multiple functional perfect, stable performance, and reliable in quality, test operates steadily automatically, and friendly interface is easy to operate, is easy to learn and use, and the symbol of use and unit are according to the ISO standard.
The communication cable of MAHA ASM BF type chassis dynamometer is received on the serial ports of main control computer, and main control computer is gathered moment, rotating speed and time data in real time and chassis dynamometer is loaded.Meteorological card of MAHA intelligence and engine speed card are installed in five gas analyzers by communication port respectively, and speed probe is installed on the engine ignition circuit.One end of sampling system inserts in the gas outlet of automobile, and the other end is connected with five gas analyzers, and the tail gas sample gas of automobile is through the aspiration pump suction of five gas analyzers, by CO, CO
2, HC, NO and O
2Sensor carries out measurement of concetration.The communication cable of five gas analyzers links to each other with the USB port of main control computer, and main control computer is gathered CO, CO in real time
2, HC, NO and O
2Concentration data, engine speed data, ambient temperature data, atmospheric pressure data and envionmental humidity data.Air compressor links to each other with the Lifting air sac of chassis dynamometer by gas circuit, for the lifting action of chassis dynamometer lifting jack provides power.Operation control software loads pollutant emission detection rules according to the gasoline car stable state chassis dynamometer, five gas analyzers, engine speed meter, the meteorological card of intelligence and printer is operated, and realizes the detection of gasoline car static loading working condition pollutant emission.
The observation process of monitoring device described in the utility model is as follows:
The driving wheel of tested vehicle 7 places on the chassis dynamometer 6, control lifting jack 19 liftings of chassis dynamometer 6 by operation control software through gas circuit 5 from the pressurized air of air compressor 3, cooling blower 2 is positioned at the dead ahead of tested vehicle 7, swamper's instrument 1 is positioned at the front upper place of tested vehicle 7, the rotating speed card of engine speed meter is installed in five gas analyzers 13, its speed probe 4 is installed on the engine ignition circuit of tested vehicle 7, the probe of sampling system 8 inserts in the gas outlet of tested vehicle 7, meteorological card 14 is installed in five gas analyzers 13, the tach signal that five gas analyzers 13 receive from engine speed sensor 4, from the environment weather signal of meteorology card 14 with from the pollutant sample gas of sampling system 8.
In whole testing process, the concentration signal of environment weather parameter signal and pollutant sends to main control computer together, has guaranteed the synchronism of environment weather parameter signal and pollutant levels signals collecting.The tail gas sample gas of automobile is through the aspiration pump suction of five gas analyzers, by CO, CO
2, HC, NO and O
2Sensor carries out measurement of concetration.Air compressor 3 links to each other with the Lifting air sac of chassis dynamometer by gas circuit 5, for the lifting action of chassis dynamometer lifting jack provides power.Operation control software loads pollutant emission detection rules according to the gasoline car stable state chassis dynamometer, five gas analyzers, engine speed meter, the meteorological card of intelligence and printer is operated, and realizes the detection of gasoline car static loading working condition pollutant emission.
Claims (3)
1, ground mo(u)ld bottom half gasoline car static loading working condition pollutant emission pick-up unit, comprise chassis dynamometer (6) and operator's console (9), it is characterized in that in operator's console (9), being placed with main control computer (10) and connected five gas analyzers (13), on operator's console (9), be placed with printer (11) and display (12), printer (11) is connected with main control computer (10) respectively with display (12), described chassis dynamometer (6) adopts German MAHA ASM BF type chassis dynamometer, be connected on the serial ports of main control computer, has the static demarcating device, absorption maximum power is 110kW, the highest test speed of a motor vehicle is 160km/h, mechanical rotation inertia is 907kg, the ground mo(u)ld bottom half is installed, the test axle heavily is 2.7 tons, two-way rotation test, drive motor power is 2.2kW, air compressor (3) is connected with chassis dynamometer (6) by gas circuit (5), one end of sampling system (8) inserts in the gas outlet of automobile, the other end is connected with five gas analyzers (13), engine speed meter and intelligent meteorological card (14) are installed on five gas analyzers, be provided with cooling blower (2) in the dead ahead of tested vehicle (7), the front upper place is provided with swamper's instrument (1).
2, pick-up unit according to claim 1 is characterized in that described five gas analyzers (13) have CO, CO
2, HC, NO and O
2Sensor.
3, pick-up unit according to claim 1 and 2, it is characterized in that described engine speed meter comprises rotating speed card and induction speed probe, induction speed probe is installed in optional position in the engine ignition circuit, and the rotating speed card is installed in five gas analyzers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03265811 CN2677919Y (en) | 2003-05-29 | 2003-05-29 | Underground detection device for pollutant discharge of gasoline vehicle stead-state loading operation condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03265811 CN2677919Y (en) | 2003-05-29 | 2003-05-29 | Underground detection device for pollutant discharge of gasoline vehicle stead-state loading operation condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2677919Y true CN2677919Y (en) | 2005-02-09 |
Family
ID=34580449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03265811 Expired - Lifetime CN2677919Y (en) | 2003-05-29 | 2003-05-29 | Underground detection device for pollutant discharge of gasoline vehicle stead-state loading operation condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2677919Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506950A (en) * | 2018-11-19 | 2019-03-22 | 合肥市极点科技有限公司 | A kind of motor vehicle detecting simulated driving device |
| CN112525557A (en) * | 2020-12-28 | 2021-03-19 | 中国第一汽车股份有限公司 | Test platform for gasoline vehicle pollutant emission detection and test method thereof |
-
2003
- 2003-05-29 CN CN 03265811 patent/CN2677919Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506950A (en) * | 2018-11-19 | 2019-03-22 | 合肥市极点科技有限公司 | A kind of motor vehicle detecting simulated driving device |
| CN109506950B (en) * | 2018-11-19 | 2020-06-26 | 合肥市极点科技有限公司 | Motor vehicle detects with simulation device that traveles |
| CN112525557A (en) * | 2020-12-28 | 2021-03-19 | 中国第一汽车股份有限公司 | Test platform for gasoline vehicle pollutant emission detection and test method thereof |
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