CN101008588A - Device and method for measuring total amount of pollutants from motor vehicles and consumption of fuel - Google Patents

Abstract

This invention relates to one automobile pollution discharge and fuel consumption measurement device and method, wherein, the device comprises dilution sample tube with brag, wind machine, computer control system, basic chassis test machine, flow, temperature and pressure test devices and gas analysis bench and wind flow adjust device; the method comprises the following steps: computer control system controls basic chassis power machine operation and the wind flow adjust device adjusts wind flow to get standard dilution flow to test each gas volume concentration; computing real discharge pollution volume and fuel consumption through computer control system.

Description

A kind of pollutant discharging total of motor vehicle and fuel consumption measuring device and method

Technical field

The present invention relates to the measurement mechanism and the method for a kind of pollutant discharging total of motor vehicle and Fuel Consumption.

Background technology

Along with automobile volume of production and marketing in recent years increases progressively fast, the generation of a large amount of automotive emissions has become a pervasive social problem, and some urban automobile exhaust emission has become first pollution source, city.Existing automobile exhaust pollutant discharge amount detection method has FTP, ASM and IM240 method.The ASM detection method owes just and sound based on pollutant emission concentration rather than total emission volumn to the vehicle of different engine displacement, and can't carry out total amount of pollutant statistics; The IM240 method is very little with respect to FTP result's discreteness to the test result of HC, CO, three kinds of pollutants of NO, and false determination ratio is very low, but IM240 operating condition method cost of equipment is relatively more expensive, and day-to-day operation is safeguarded more complicated, is difficult to large tracts of land and promotes.In order to overcome the difficulty that ASM and FTP correlativity are poor, the IM240 expense is too high and be unfavorable for promoting, the detection method of existing IG240 (VMAS), this method relevant technologies core can be with reference to U.S. Patent number: US6387706 and US6085582 (VEHICLE MASS EMISSION MEASUREMENT).Domestic also have enterprise to propose based on CO on this patent basis ₂The patent of spike " a kind of measurement mechanism of motor vehicle emission pollutant total amount and method thereof " (number of patent application CN200410051631.2), above patented method substantial principle is the same: comprise dilution collection flexible pipe, blower fan, dilution exhaust flow measurement mechanism, first gas analysis module of measuring the five component gas analysis that meets the BAR97 standard of original tail gas of collecting tail gas and air, an O who measures diluents ₂Perhaps CO ₂Second gas analysis module of concentration is by O in two analysis modules ₂Perhaps CO ₂Concentration calculates the dilution ratio of dilution tail gas, and calculates original exhaust flow, thereby obtains the mass rate of tail gas.But its flow that extracts dilution tail gas is (being about 120L/s) fixed, motor vehicle for different displacements, dilution ratio alters a great deal, when extraction flow during at 120L/s, 2.4L the dilution ratio of the motor vehicle of discharge capacity when idling is about 3%, its dilution ratio of the motor vehicle of 0.8L discharge capacity has only about 1%.O as tracer gas ₂Perhaps CO ₂Concentration change is very little, and minimum error is (as O ₂When error is absolute percent content 0.1%, CO ₂When error is absolute percent content 0.04%) may cause the error of the dilution ratio of calculating very big.Therefore, these methods are not suitable for the measurement of the motor-vehicle tail-gas of a large amount of 0.8L-1.8L discharge capacities of China, can't satisfy China in the requirement with the car simple transient behavior method.So domestic urgent need a kind of novel pollutant discharging total of motor vehicle proving installation and method.

Along with high speed development of national economy, the output of automobile and recoverable amount are also in growth at full speed, and the fuel oil of automobile consumption will increase with benefit, and meanwhile, China's oil resource and output are limited.Country has formulated standard GB/T19233-2003 " light commercial vehicles Fuel Consumption limit value ", mandatory GB GB19578-2004 " passenger car Fuel Consumption limit value " for reducing automotive fuel wastage.Standard GB 18565-2001 " the commerial vehicle combination property requires and the method for inspection " also has the requirement of measuring the commerial vehicle fuel consumption simultaneously.But GB/T19233-2003 " light commercial vehicles Fuel Consumption limit value " adopts the method for testing among the GB18352.2-2001 " light-duty vehicle pollutant emission limit and measuring method ", i.e. IM240 operating condition method.This method cost of equipment is relatively more expensive, and day-to-day operation is safeguarded more complicated, is not suitable for China's large tracts of land and promotes the use of.

Therefore, domestic urgent need is a kind of both can measure the exhaust emissions total amount, again can be based on the measurement mechanism and the method for Carbon balance principle measuring machine motor-car Fuel Consumption.

Summary of the invention

Purpose of the present invention aims to provide a kind of can the adjustment automatically according to detected motor car engine displacement size and dilutes tail gas pump drainage flow, measures flow, temperature, the pressure of dilution tail gas in real time, and measures simultaneously and dilute CO, HC, CO in the tail gas ₂, NO, O ₂Deng the concentration of composition, and then calculate a kind of pollutant discharging total of motor vehicle and the fuel consumption measuring device and the method for instantaneous exhaust emissions quality.

The implementation of the object of the invention is, a kind of pollutant discharging total of motor vehicle and fuel consumption measuring device, the gas outlet that connects tested motor vehicle with bell-mouthed dilution sampling pipe 2 inlets, outlet is connected to blower fan 8, the blower fan 8 machine flow regulator 9 of giving a dinner for a visitor from afar, the control interface of computer measurement and control system 7 connects chassis dynamometer 1 and compressor flow regulating device 9, and the interface of flow measurement device 3, temperature measuring equipment 4, device for pressure measurement 5, gas analysis platform 6 connects computer measurement and control system 7.

A kind of pollutant discharging total of motor vehicle and fuel consumption measuring method, carry out according to the following steps:

1) gas analysis platform 6 extracts through HC filtrator and CO ₂The filtrator filtered air, perhaps concentration is 20.9% standard O ₂Return to zero, i.e. CO, HC, CO ₂, NO is 0, O ₂Be 20.9%,

2) will write down CO, HC, CO in the surrounding air with the hydraucone of bell-mouthed dilution sampling pipe 2 away from the gas outlet mouth of pipe of tested motor vehicle and directly extract air in the environment ₂, the NO concentration C _d,

3) will be with the hydraucone of bell-mouthed dilution sampling pipe 2 the gas outlet mouth of pipe over against tested motor vehicle, the air that extracts the whole exhausts of motor vehicle and participate in dilution by blower fan 8, and the tail gas of dilution is transported to flow measurement device 3,

4) according to the displacement size of tested motor vehicle, computer measurement and control system 7 is by the extraction flow of compressor flow regulating device 9 control blower fans 8, also can extract flows by compressor flow regulating device 9 control blower fans 8, make when motor vehicle during at idling mode by gas analysis platform 6 analysis diluentss in CO+CO ₂Volumetric concentration and be 0.4%～0.8%, in test process, according to the testing standard requirement, computer measurement and control system 7 control chassis dynamometers 1 load,

5) flow measurement device 3, temperature measuring equipment 4, device for pressure measurement 5 are measured flow (Q), temperature (T), the pressure (P) of dilution tail gas, and send signal to computer measurement and control system 7,

6) gas analysis platform 6 is directly measured CO, HC, the CO in the dilution tail gas in real time ₂, NO, O ₂Volumetric concentration (C _e), and send signal to computer measurement and control system 7,

7) chassis dynamometer 1 is with motor vehicle real-time speed V _iSend to computer measurement and control system 7,

8) computer measurement and control system 7 carries out data processing according to the signal that gas analysis platform 6 and flow measurement device 3, temperature measuring equipment 4, device for pressure measurement 5, chassis dynamometer 1 send over, and obtains the flow Q of the dilution tail gas under the standard state _s, with CO, HC, the CO in the dilution tail gas ₂, the volumetric concentration of NO and the CO in the surrounding air, HC, CO ₂, NO volumetric concentration obtain corrected concentrations C after proofreading and correct through dilution _i, in conjunction with Q _sAnd C _iCalculate CO, HC, CO ₂, NO the mass M of unit interval _i, and then obtain total discharging M of pollutant _Total, the real-time speed V that chassis dynamometer is sended over _iAdd up can obtain motor-driven vehicle going apart from d, calculate motor vehicle every km pollutant discharge amount M and per 100 km Fuel Consumption FC at last.

The present invention has adopted the automatic flow regulating device, makes a covering device can be fit to measure all vehicles that discharge capacity is 0.8L-6.0L; Adopted the method for direct measurement dilution exhaust flow and dilution exhaust gas volumes concentration, do not needed to calculate original tail gas dilution ratio, reduced because adopt Q ₂Perhaps CO ₂As tracer gas, by the dilution ratio error of calculation that the measuring error transmission causes, improved the accuracy of test, in addition, as adopting O ₂Perhaps CO ₂Calculate dilution ratio as spike, need a cover five component analysis instrument to measure original tail gas, time lag is at least more than 5 seconds, so real-time height of the present invention.

The present invention adopts electronically controlled frequency converter or electronically controlled transformer to control the size of pump drainage blower fan pump drainage air quantity automatically, and measure flow, temperature, the pressure that dilutes tail gas in real time, adopt high-precision gas analysis instrument to measure CO, HC, CO in the dilution tail gas simultaneously ₂, NO, O ₂Concentration, can obtain the instantaneous total emission volumn of vehicular pollutant and calculate Fuel Consumption by calculating by the Carbon balance method.This method has overcome and has adopted O in the past ₂Perhaps CO ₂Measure dilution tail gas carry out spike calculate simple transient behavior method system complex, the measuring accuracy of dilution tail gas dilution ratio low, be not suitable for shortcoming such as domestic automobile with small output volume measurements, for China's motor vehicle simple transient behavior method pollutant detects and the Fuel Consumption detection provides a kind of new method.

The present invention can obtain the total emission volumn and the Fuel Consumption of vehicular pollutant, reliable operation, measuring accuracy height, can be used for the detection of the pollutant discharging total of motor vehicle and the Fuel Consumption of various discharge capacities.

Description of drawings

Fig. 1 is a measurement mechanism structural representation of the present invention

Fig. 2 is the process flow diagram of measuring method of the present invention

Embodiment

With reference to Fig. 1, the gas outlet that connects tested motor vehicle with bell-mouthed dilution sampling pipe 2 inlets, outlet is connected to blower fan 8, and blower fan 8 is by 9 controls of compressor flow regulating device, and computer measurement and control system 7 is by interface control chassis dynamometer 1 and compressor flow regulating device 9.The interface of flow measurement device 3, temperature measuring equipment 4, device for pressure measurement 5, gas analysis platform 6 connects computer measurement and control system 7.

Gas analysis platform 6 is positioned at the rear end of flow measurement device 3, temperature measuring equipment 4, device for pressure measurement 5, from the sample tap sampling of rear end, directly measures CO, HC, CO in the dilution tail gas ₂, NO, O ₂Equal size.

At the tested vehicle of different displacements, the present invention is by the flow of compressor flow regulating device 9 control blower fans 8, makes the vehicle of various discharge capacities when idling, CO+CO in the dilution tail gas gas ₂Volumetric concentration and between 0.4%～0.8%, be unlikely to cause in the automobile with small output volume dilution tail gas phenomenon of tail gas overrich in rare excessively, the big discharge capacity car dilution of the tail gas tail gas.Tail gas after the dilution sends to computer measurement and control system 7 with measuring-signal after being with bell-mouthed dilution sampling pipe 2, flow measurement device 3, temperature measuring equipment 4, device for pressure measurement 5, CO, HC, CO in the gas analysis platform 6 real-time collection analysis dilution tail gas ₂, NO, O ₂Volumetric concentration and send signal to computer measurement and control system 7.Computer measurement and control system 7 is according to the flow of dilution tail gas and the mass rate that tail gas is calculated in gas composition automatically.

Compressor flow regulating device 9 can be electronically controlled frequency converter or electronically controlled transformer.Adopt the flow of electronically controlled frequency converter or electronically controlled transformer control blower fan to belong to known technology.Chassis dynamometer 1, flow measurement device 3, temperature measuring equipment 4, device for pressure measurement 5, gas analysis platform 6 needed flow sensors, temperature sensor, pressure transducer, NDIR infrared gas sensor, electrochemical gas sensor and the electrical signal conversion mechanism that needs all belong to the measuring equipment in the known technology.The interface of computer measurement and control system 7 can also can adopt interfaces such as A/D commonly used, D/A data acquisition control card for RS232, RS485 interface commonly used, and these all belong to known technology.

With reference to Fig. 2, measuring method of the present invention is: (perhaps concentration is 20.9% standard O for gas analysis platform extraction process HC filtrator and CO2 filtrator filtered air ₂) (CO, HC, CO return to zero ₂, NO is O, O ₂Be 20.9%); With the hydraucone of dilution sampling pipe 2 the gas outlet mouth of pipe, by the blower fan draw ambient air and write down CO, HC, CO away from tested motor vehicle ₂, NO concentration C _d, the air that extracts whole tail gas and participate in dilution by blower fan according to the testing standard requirement, is controlled chassis dynamometer and is loaded then, reads real-time traffic Q, temperature T, pressure P and CO, HC, CO ₂, NO, O ₂Volumetric concentration C _e, real-time speed V _i, by second calculating CO, a HC, CO ₂, NO the mass M of unit interval _i, operating range d, after the end of test (EOT), calculate total discharging M _Total, total operating range d, calculate every km pollutant discharge amount M and per 100 km Fuel Consumption FC.

Concrete computing method are as follows:

The flow Q of dilution tail gas under the standard state _sCalculate by following formula:

$Q_s=Q\×\frac{P}{T}\×\frac{T_0}{P_0}$

In the formula:

Q _s---the flow L/s of the dilution tail gas under the standard state,

The flow L/s that Q---flow measurement device records,

The pressure kPa that P---force measuring device records,

The temperature K that T---temperature measuring equipment records,

P ₀---the pressure under the standard state, 101.325kPa,

T ₀---the temperature under the standard state, 273.15K.

By CO, HC, the CO in the dilution tail gas ₂, the volumetric concentration of NO and the CO in the surrounding air, HC, CO ₂, NO volumetric concentration, by following formula calculation correction concentration C _i:

$C_i=C_e-C_d(1-\frac{1}{\mathrm{DF}})$

In the formula:

C _i---CO, HC after the correction, CO ₂, NO volumetric concentration,

C _e---CO, HC, the CO of dilution tail gas before proofreading and correct ₂, NO volumetric concentration,

C _d---CO, HC, CO in the surrounding air ₂, NO volumetric concentration,

DF---dilution factor.

Dilution factor DF is calculated as follows:

$\mathrm{DF}=\frac{13.4}{C_{{\mathrm{CO}}_2}+C_{\mathrm{CO}}+6\×C_{\mathrm{HC}}\×{10}^{-4}}$

In the formula:

C _CO2---the CO of dilution tail gas before proofreading and correct ₂Volumetric concentration, percent volume concentration,

C _HC---the volumetric concentration of the HC of dilution tail gas before proofreading and correct, part per million volumetric concentration (hexane equivalent),

C _CO---the volumetric concentration of the CO of dilution tail gas before proofreading and correct, percent volume concentration.

The mass M of the unit interval of HC, NO _iCalculate by following formula:

$M_i=C_i\×{10}^{-6}\×Q_s\×\frac{\mathrm{FZL}}{K_1}$

In the formula:

M _i---HC or the quality g/s of NO unit interval,

C _i---HC after the correction or the part per million volumetric concentration of NO,

Q _s---the flow L/s of the dilution tail gas under the standard state,

The gram molecular weight of FZL---HC or NO is respectively 86g/mol and 30g/mol,

K ₁---the gram molecular volume of ideal gas is 22.4136L/mol.

CO, CO ₂The mass M of unit interval _iCalculate by following formula:

$M_i=C_i\×{10}^{-2}\×Q_s\×\frac{\mathrm{FZL}}{K_1}$

In the formula:

M _i---CO or CO ₂The quality g/s of unit interval,

C _i---CO or CO after the correction ₂Percent volume concentration,

Q _s---the flow L/s of the dilution tail gas under the standard state,

FZL---CO or CO ₂Gram molecular weight, be respectively 28g/mol and 44g/mol,

K ₁---the gram molecular volume of ideal gas is 22.4136L/mol.

Motor vehicle is at total discharging M of certain pollutant of 0-t in the time _TotalCalculate by following formula:

$M_{\mathrm{Total}}=\underset{i=0}{\overset{t}{\mathrm{\Σ}}}{M}_i$

In the formula:

M _Total---total discharge capacity g of certain pollutant in the 0-t time,

M _i---total discharge capacity g of certain pollutant of unit interval.

Calculating by following formula of interior motor-driven vehicle going of 0-t time apart from d:

$d=\underset{0}{\overset{t}{\mathrm{\Σ}}}{V}_i$

In the formula:

In d---the 0-t time motor-driven vehicle going apart from km,

V _i---motor vehicle real-time speed km/s.

The every km pollutant discharge amount of motor vehicle (M) calculates by following formula:

$M=\frac{M_{\mathrm{total}}}{d}$

In the formula:

M---the discharge capacity g/km of every certain pollutant of km,

M _Total---total discharge capacity g of certain pollutant in the 0-t time,

Motor-driven vehicle going apart from km in d---the 0-t time.

Per 100 km Fuel Consumptions (FC), for the motor vehicle of dress gasoline engine, calculate by following formula:

$\mathrm{FC}=\frac{0.1154}{D}[(0.866\×M_{\mathrm{HC}})+(0.429\×M_{\mathrm{CO}})+(0.273\×M_{{\mathrm{CO}}_2})]$

For the motor vehicle of dress diesel engine, calculate by following formula:

$\mathrm{FC}=\frac{0.1155}{D}[(0.866\×M_{\mathrm{HC}})+(0.429\×M_{\mathrm{CO}})+(0.273\×M_{{\mathrm{CO}}_2})]$

In the formula:

FC---Fuel Consumption, L/100km,

M _HC---the every km pollutant HC discharge capacity g/km that records,

M _CO---the every km pollutant CO discharge capacity g/km that records,

M _CO2-every km pollutant CO of recording ₂Discharge capacity g/km,

D---the density kg/L of test fuel under the test temperature.

Claims (10)

1, a kind of pollutant discharging total of motor vehicle and fuel consumption measuring device, it is characterized in that connecting the gas outlet of tested motor vehicle with bell-mouthed dilution sampling pipe (2) inlet, outlet is connected to blower fan (8), blower fan (8) the machine flow regulator (9) of giving a dinner for a visitor from afar, the control interface of computer measurement and control system (7) connects chassis dynamometer (1) and compressor flow regulating device (9), and the interface of flow measurement device (3), temperature measuring equipment (4), device for pressure measurement (5), gas analysis platform (6) connects computer measurement and control system (7).

2, according to right 1 require described pollutant discharging total of motor vehicle and fuel consumption measuring device, it is characterized in that gas analysis platform (6) is positioned at the sample tap of the rear end of flow measurement device (3), temperature measuring equipment (4), device for pressure measurement (5).

3, according to right 1 require described pollutant discharging total of motor vehicle and fuel consumption measuring device, it is characterized in that compressor flow regulating device (9) is electronically controlled frequency converter or electronically controlled transformer.

4, the measuring method of a kind of pollutant discharging total of motor vehicle and Fuel Consumption is characterized in that carrying out according to the following steps:

1) gas analysis platform (6) extracts through HC filtrator and CO ₂The filtrator filtered air, perhaps concentration is 20.9% standard O ₂Return to zero, i.e. CO, HC, CO ₂, NO is 0, O ₂Be 20.9%,

2) will write down CO, HC, CO in the surrounding air with the hydraucone of bell-mouthed dilution sampling pipe (2) away from the gas outlet mouth of pipe of tested motor vehicle and directly extract air in the environment ₂, the NO concentration C _d,

3) will be with the hydraucone of bell-mouthed dilution sampling pipe (2) the gas outlet mouth of pipe over against tested motor vehicle, the air that extracts the whole exhausts of motor vehicle and participate in dilution by blower fan (8), and the tail gas of dilution is transported to flow measurement device (3),

4) according to the displacement size of tested motor vehicle, computer measurement and control system (7) is by the extraction flow of compressor flow regulating device (9) control blower fan (8), also can extract flow by compressor flow regulating device (9) control blower fan (8), make when motor vehicle during at idling mode by gas analysis platform (6) analysis diluents in CO+CO ₂Volumetric concentration and be 0.4%～0.8%, in test process, according to the testing standard requirement, computer measurement and control system (7) control chassis dynamometer (1) loads,

5) flow measurement device (3), temperature measuring equipment (4), device for pressure measurement (5) are measured flow (Q), temperature (T), the pressure (P) of dilution tail gas, and send signal to computer measurement and control system (7),

6) gas analysis platform (6) is directly measured CO, HC, the CO in the dilution tail gas in real time ₂, NO, O ₂Volumetric concentration (C _e), and send signal to computer measurement and control system (7),

7) chassis dynamometer (1) is with motor vehicle real-time speed V ₁Send to computer measurement and control system (7),

8) computer measurement and control system (7) carries out data processing according to the signal that gas analysis platform (6) and flow measurement device (3), temperature measuring equipment (4), device for pressure measurement (5), chassis dynamometer (1) send over, and obtains the flow Q of the dilution tail gas under the standard state _s, with CO, HC, the CO in the dilution tail gas ₂, the volumetric concentration of NO and the CO in the surrounding air, HC, CO ₂, NO volumetric concentration obtain corrected concentrations C after proofreading and correct through dilution ₁, in conjunction with Q _sAnd C ₁Calculate CO, HC, CO ₂, NO the mass M of unit interval ₁, and then obtain total discharging M of pollutant _Total, the real-time speed V that chassis dynamometer is sended over ₁Add up can obtain motor-driven vehicle going apart from d, calculate motor vehicle every km pollutant discharge amount M and per 100 km Fuel Consumption FC at last.

5, the measuring method of a kind of pollutant discharging total of motor vehicle according to claim 4 and Fuel Consumption is characterized in that the flow Q of the dilution tail gas under the standard state _sCalculate by following formula:

$Q_S=Q\×\frac{P}{T}\×\frac{T_0}{P_0}$

In the formula:

Q _s---the flow L/s of the dilution tail gas under the standard state,

The flow L/s that Q---measuring device records,

The pressure kPa that P---device for pressure measurement records,

The temperature K that T---temperature measuring equipment records,

P ₀---the pressure under the standard state, 101.325kPa,

T ₀---the temperature under the standard state, 273.15K.

6, the measuring method of a kind of pollutant discharging total of motor vehicle according to claim 4 and Fuel Consumption is characterized in that diluting tail gas corrected concentrations C ₁Calculate by following formula:

$C_i=C_e-C_d(1-\frac{1}{\mathrm{DF}})$

In the formula:

C _i---CO, HC after the correction, CO ₂, NO volumetric concentration,

C _e---CO, HC, the CO of dilution tail gas before proofreading and correct ₂, NO volumetric concentration,

C _d---CO, HC, CO in the surrounding air ₂, NO volumetric concentration,

DF---dilution factor.

Being calculated as follows of dilution factor:

$\mathrm{DF}=\frac{13.4}{C_{{\mathrm{CO}}_2}+C_{\mathrm{CO}}+6\×C_{\mathrm{HC}}\×{10}^{-4}}$

In the formula:

C _CO2---the CO of dilution tail gas before proofreading and correct ₂Volumetric concentration, percent volume concentration,

C _HC---the volumetric concentration of the HC of dilution tail gas before proofreading and correct, part per million volumetric concentration (hexane equivalent),

C _CO---the volumetric concentration of the CO of dilution tail gas before proofreading and correct, percent volume concentration.

7, a kind of pollutant discharging total of motor vehicle according to claim 4 and fuel consumption measuring method is characterized in that the mass M of the unit interval of HC, NO _iCalculate by following formula:

$M_i=C_i\×{10}^{-6}\×Q_S\×\frac{\mathrm{FZL}}{K_1}$

In the formula:

M _i---HC or the quality g/s of NO unit interval,

C _i---HC after the correction or the part per million volumetric concentration of NO,

Q _S---the flow L/s of the dilution tail gas under the standard state,

The gram molecular weight of FZL---HC or NO is respectively 86g/mol and 30g/mol,

K ₁---the gram molecular volume of ideal gas is 22.4136L/mol.

8, a kind of pollutant discharging total of motor vehicle according to claim 4 and fuel consumption measuring method is characterized in that CO, CO ₂The mass M of unit interval _iCalculate by following formula:

$M_i=C_i\×{10}^{-2}\×Q_S\×\frac{\mathrm{FZL}}{K_1}$

In the formula:

M _i---CO or CO ₂The quality g/s of unit interval,

C ₁---CO or CO after the correction ₂Percent volume concentration,

Q _S---the flow L/s of the dilution tail gas under the standard state,

FZL---CO or CO ₂Gram molecular weight, be respectively 28g/mol and 44g/mol,

K ₁---the gram molecular volume of ideal gas is 22.4136L/mol.

9, the measuring method of a kind of pollutant discharging total of motor vehicle according to claim 4 and Fuel Consumption is characterized in that the total discharging M of motor vehicle at certain pollutant of 0-t in the time _TotalCalculate by following formula:

$M_{\mathrm{Total}}=\underset{i=0}{\overset{1}{\mathrm{\Σ}}}{M}_i$

In the formula:

M _Total---total discharge capacity g of certain pollutant in the 0-t time,

M ₁---total discharge capacity g of certain pollutant of unit interval.

Calculating by following formula of interior motor-driven vehicle going of 0-t time apart from d:

$d=\underset{0}{\overset{1}{\mathrm{\Σ}}}{V}_i$

In the formula:

In d---the 0-t time motor-driven vehicle going apart from km,

V _i---motor vehicle real-time speed km/s.

10, the measuring method of a kind of pollutant discharging total of motor vehicle according to claim 4 and Fuel Consumption is characterized in that the every km pollutant discharge amount of motor vehicle (M) calculates by following formula:

$M=\frac{M_{\mathrm{total}}}{d}$

In the formula:

M---the discharge capacity g/km of every certain pollutant of km,

M _Total---total discharge capacity g of certain pollutant in the 0-t time,

Motor-driven vehicle going apart from km in d---the 0-t time.

Per 100 km Fuel Consumptions (FC), for the motor vehicle of dress gasoline engine, calculate by following formula:

$\mathrm{FC}=\frac{0.1154}{D}[(0.866\×M_{\mathrm{HC}})+(0.429\×M_{\mathrm{CO}})+(0.273\×M_{{\mathrm{CO}}_2})]$

For the motor vehicle of dress diesel engine, calculate by following formula:

$\mathrm{FC}=\frac{0.1155}{D}[(0.866\×M_{\mathrm{HC}})+(0.429\×M_{\mathrm{CO}})+(0.273\×M_{C{O}_2})]$

In the formula:

FC---Fuel Consumption, L/100km,

M _HC---the every km pollutant HC discharge capacity g/km that records,

M _CO---the every km pollutant CO discharge capacity g/km that records,

M _CO2---the every km pollutant CO that records ₂Discharge capacity g/km,

D---the density of test fuel under the test temperature, kg/L.

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