CN110470354A - The test method of fuel for motor vehicle consumption under a kind of customized operating condition - Google Patents
The test method of fuel for motor vehicle consumption under a kind of customized operating condition Download PDFInfo
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- 239000000446 fuel Substances 0.000 title claims abstract description 90
- 238000010998 test method Methods 0.000 title claims abstract description 14
- 238000012360 testing method Methods 0.000 claims abstract description 104
- 238000000034 method Methods 0.000 claims abstract description 66
- 239000003575 carbonaceous material Substances 0.000 claims description 30
- 238000004458 analytical method Methods 0.000 claims description 24
- 239000004215 Carbon black (E152) Substances 0.000 claims description 22
- 229930195733 hydrocarbon Natural products 0.000 claims description 22
- 150000002430 hydrocarbons Chemical class 0.000 claims description 22
- 238000002485 combustion reaction Methods 0.000 claims description 21
- 238000004364 calculation method Methods 0.000 claims description 12
- 230000008676 import Effects 0.000 claims description 12
- 238000005070 sampling Methods 0.000 claims description 4
- 238000004088 simulation Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 3
- 238000012956 testing procedure Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F9/00—Measuring volume flow relative to another variable, e.g. of liquid fuel for an engine
- G01F9/001—Measuring volume flow relative to another variable, e.g. of liquid fuel for an engine with electric, electro-mechanic or electronic means
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Abstract
The present invention relates to a kind of test methods of fuel for motor vehicle consumption under customized operating condition, the method is directed to different operating conditions, work out the test analysis program of emission analyzer, so that the accuracy of its test process significantly improves, the method of the invention is suitable under indoor environment for the test of fuel for motor vehicle consumption under accelerating mode, cruising mode and idling operation, influence of the environmental change to test result is avoided, so that the accuracy of test is significantly improved compared with fuel consumption meter.
Description
Technical field
The present invention relates to a kind of surveys of fuel for motor vehicle consumption under automotive field more particularly to customized operating condition
Method for testing.
Background technique
With popularizing for automobile, domestic automobile ownership is substantially increased, while automobile fuel consumption, emission regulation is gradually perfect
It is tight with adding, oil consumption control is required higher and higher.Currently used fuel consumption measuring device is fuel consumption meter, not according to measuring principle
Together, Volumetric Fuel Consumption Meter, quality formula fuel consumption meter, flow-type fuel consumption meter and flowing speed type fuel consumption meter can be divided into；Although fuel consumption meter can be with
Fuel consumption is measured, but still faces measurement accuracy deficiency and is difficult to asking for the fuel consumption tested in the lower situation of oil consumption
Topic.
CN101339064A discloses a kind of electric control gasoline engine fuel consumption weight testing method, and the method is by starting
One air flow meter of series connection, acquires air flow meter signal by microsystem, after being handled and being calculated, obtains on machine air intake duct
To the air total amount of sucking engine, air total amount is arrived to the equivalent consumption of normal benzine, this scheme institute divided by 14.7
The method of stating is only applicable to the test of fuel consumption under cruising mode, and measuring accuracy is lower.
CN101676706A discloses a kind of measuring device and measuring method of diesel engine fuel consumption, described device be
Installation quality flowmeter in original fuel system, and the electric signal that the mass flowmenter is exported and original diesel engine output power
Electric signal, which is transported to together in fuel consumption instrument, carries out operation, and the output power, fuel consumption and fuel oil for exporting diesel engine disappear
Consumption rate；This scheme described device has measurement accuracy deficiency.
Although above-mentioned document discloses the test method of some fuel for motor vehicle consumptions, but still that there are measuring accuracies is low
Problem, therefore a kind of measuring accuracy height is developed, and the test method for the fuel for motor vehicle consumption being suitable under customized operating condition
Still it is of great significance.
Summary of the invention
The purpose of the present invention is to provide a kind of test method of fuel for motor vehicle consumption under customized operating condition, the sides
Method is directed to different operating conditions, the test analysis program of emission analyzer is worked out, so that the accuracy of its test process is obvious
It improves, the method for the invention can be suitably used for the survey of fuel for motor vehicle consumption under accelerating mode, cruising mode and idling operation
Examination, and the accuracy tested is significantly improved compared with fuel consumption meter.
In order to achieve that object of the invention, the invention adopts the following technical scheme:
The present invention provides a kind of test method of fuel for motor vehicle consumption under customized operating condition, the method includes with
Lower step:
(1) according to the Velocity Time data of customized operating condition, emission analyzer test analysis program is worked out；
(2) vehicle is recycled according to customized operating condition described in step (1), acquires Vehicular exhaust；
(3) using the carbonaceous material concentration in the Vehicular exhaust of emission analyzer analytical procedure (2) acquisition, acquisition is tested
Exhaust gas volumes calculate the discharge amount for acquiring carbonaceous material, and then the fuel consumption being calculated under the operating condition.
The method of the invention tests the fuel for motor vehicle consumption under customized operating condition based on emission analyzer, is directed to
Different operating conditions work out emission analyzer test program, so that the accuracy of its test result is significantly improved compared with fuel consumption meter, and
The test process of test method of the present invention can be completed indoors, thus can be effectively controlled the temperature and humidity of test process,
To avoid extraneous factor from changing the influence to test result.
Preferably, the method for step (1) the establishment emission analyzer test analysis program includes: according to customized operating condition
Velocity Time data, establish customized Velocity-time tables of data, analyzer user custom block import described in make by oneself
Adopted Velocity-time tables of data, establishment generate customized performance curve, described certainly using analyzer master control integrated program calling
The performance curve operation test of definition recycles the go forward side by side acquisition of end of line gas, analysis, and database calculation formula is called to obtain carbonaceous material
Discharge amount, for subsequent combustion consumption calculate.
According to the Velocity Time of customized operating condition in the method for establishment emission analyzer test analysis program of the present invention
Data, establishment generates customized performance curve in emission analyzer custom block, and it is integrated to establish analyzer master control later
Contacting between program and customized performance curve, so that integrating journey by analyzer master control in subsequent step (2) and step (3)
Sequence calls the customized performance curve operation test to recycle the go forward side by side acquisition of end of line gas, analysis, and test cycle refers to this hair herein
Circulation of the vehicle under the customized operating condition in bright step (2), end of line gas of going forward side by side acquisition, analysis, utilizes database later
Calculation formula is called to obtain the discharge amount of carbonaceous material, the calculating for subsequent combustion consumption.
Preferably, the Velocity Time data of the customized operating condition include the Velocity Time data of accelerating mode, constant speed work
In the Velocity Time data of condition or the Velocity Time data of idling operation any one or at least two combination.
Preferably, the emission analyzer is AVL emission analyzer or HORIBA emission analyzer.
Preferably, step (1) the customized operating condition includes any one in accelerating mode, cruising mode or idling operation
Kind or at least two combination.
Preferably, step (1) the customized operating condition is accelerating mode, the establishment emission analyzer test analysis program
Method include: Velocity Time data according to accelerating mode, establish the Velocity-time tables of data of customized accelerator, benefit
The Velocity-time tables of data of customized accelerator is imported with analyzer user custom block, it is bent that establishment generates accelerating mode
Line；The accelerating mode curve motion test cycle is called to go forward side by side the acquisition of end of line gas, analysis using analyzer master control integrated program,
It calls database calculation formula to obtain the discharge amount of carbonaceous material, calculated for subsequent combustion consumption.
Preferably, the accelerating mode is selected from the accelerating sections of NEDC operating condition.
Preferably, step (1) the customized operating condition is cruising mode, the establishment emission analyzer test analysis program
Method include: Velocity Time data according to cruising mode, establish the Velocity-time tables of data of customized constant speed process, In
Analyzer user custom block imports the Velocity-time tables of data of customized constant speed process, and establishment generates cruising mode's curve；
It calls cruising mode's curve motion test cycle to go forward side by side the acquisition of end of line gas, analysis using analyzer master control integrated program, adjusts
The discharge amount of carbonaceous material is obtained with database calculation formula, is calculated for subsequent combustion consumption.
Preferably, step (1) the customized operating condition is cruising mode, and the sampling time of tail gas is 3- in step (2)
15min, such as 4min, 5min, 6min, 7min, 8min, 9min, 10min, 11min, 12min, 13min or 14min etc., preferably
For 5-10min.
Preferably, step (1) the customized operating condition is idling operation, the establishment emission analyzer test analysis program
Method include: Velocity Time data according to idling operation, establish the Velocity-time tables of data of customized idling process, In
Analyzer user custom block imports the Velocity-time tables of data of customized idling process, and establishment generates idling operation curve；
It calls the idling operation curve motion test cycle to go forward side by side the acquisition of end of line gas, analysis using analyzer master control integrated program, adjusts
The discharge amount of carbonaceous material is obtained with database calculation formula, is calculated for subsequent combustion consumption.
Preferably, step (1) the customized operating condition is idling operation, and the sampling time of tail gas is 3- in step (2)
15min, such as 4min, 5min, 6min, 7min, 8min, 9min, 10min, 11min, 12min, 13min or 14min etc., preferably
For 5-10min.
Preferably, vehicle is subjected to 20-50km, such as 25km, 30km, 35km, 40km or 45km before carrying out step (2)
Deng, traveling preheating.
Preferably, the traveling warm carries out under chassis dynamometer road resistance simulation model.
Preferably, described circulate on chassis dynamometer of step (2) carries out.
Preferably, step (3) described carbonaceous material includes CO2, CO and hydrocarbon HC.
Preferably, step (3) described exhaust gas volumes test to obtain by constant volume sample CVS.
Preferably, the customized operating condition is acceleration and/or cruising mode, and the motor vehicle is diesel vehicle, step (3) institute
The formula for stating calculating is as follows:
Wherein, FC is fuel consumption, and unit is to rise every 100 km (L/100km)；D is that combustion is tested under 288K (15 DEG C)
The density of material, unit are thousand gram per liters (kg/L)；CHCFor the hydrocarbon emission amount measured, unit is gram every km (g/
km)；CCOFor the CO emission measured, unit is gram every km (g/km)；For the CO2 emission measured
Amount, unit are gram every km (g/km).
Preferably, the customized operating condition is acceleration and/or cruising mode, and the motor vehicle is gasoline car, step (3) institute
The formula for stating calculating is as follows:
Wherein, FC is fuel consumption, and unit is to rise every 100 km (L/100km)；D is that combustion is tested under 288K (15 DEG C)
The density of material, unit are thousand gram per liters (kg/L)；CHCFor the hydrocarbon emission amount measured, unit is gram every km (g/
km)；CCOFor the CO emission measured, unit is gram every km (g/km)；For the CO2 emission measured
Amount, unit are gram every km (g/km).
Preferably, the customized operating condition is idling operation, and step (3) formula for being applicable in calculating is as follows:
Wherein, FI is idle fuel consumption, and unit is liter per hour (L/h)；D is test fuel under 288K (15 DEG C)
Density, unit are thousand gram per liters (kg/L)；MHCFor the hydrocarbon emission amount measured, unit is gram (g)；MCOIt measures
CO emission, unit are gram (g)；For the CO2 emissions measured, unit is gram (g)；T is the time, single
Position is min.
As currently preferred technical solution, the test method packet of fuel for motor vehicle consumption under the customized operating condition
Include following steps:
(1) according to the Velocity Time data of customized operating condition, emission analyzer test analysis program is worked out；
If the customized operating condition is accelerating mode, the method for the establishment emission analyzer test analysis program includes:
According to the Velocity Time data of accelerating mode, establish the Velocity-time tables of data of customized accelerator, analyzer user from
Definition module imports the Velocity-time tables of data of customized accelerator, and establishment generates accelerating mode curve；Utilize analyzer master
Control integrated program calls the accelerating mode curve motion test cycle to go forward side by side the acquisition of end of line gas, analysis, and database is called to calculate
Formula obtains the discharge amount of carbonaceous material, calculates for subsequent combustion consumption；
If the customized operating condition is cruising mode, the method for the establishment emission analyzer test analysis program includes:
According to the Velocity Time data of cruising mode, establish the Velocity-time tables of data of customized constant speed process, analyzer user from
Definition module imports the Velocity-time tables of data of customized constant speed process, and establishment generates cruising mode's curve；Utilize analyzer master
Control integrated program calls cruising mode's curve motion test cycle to go forward side by side the acquisition of end of line gas, analysis, and database is called to calculate
Formula obtains the discharge amount of carbonaceous material, calculates for subsequent combustion consumption；
If the customized operating condition is idling operation, the method for the establishment emission analyzer test analysis program includes:
According to the Velocity Time data of idling operation, establish the Velocity-time tables of data of customized idling process, analyzer user from
Definition module imports the Velocity-time tables of data of customized idling process, and establishment generates idling operation curve；Utilize analyzer master
Control integrated program calls the idling operation curve motion test cycle to go forward side by side the acquisition of end of line gas, analysis, and database is called to calculate
Formula obtains the discharge amount of carbonaceous material, calculates for subsequent combustion consumption；
(2) vehicle is recycled according to customized operating condition described in step (1), acquires Vehicular exhaust；
(3) CO in the Vehicular exhaust of emission analyzer analytical procedure (2) acquisition is utilized2, CO and hydrocarbon HC
Concentration, and exhaust gas volumes are tested using constant volume sample CVS, the discharge amount for acquiring carbonaceous material is calculated, later using as follows
The fuel consumption under the operating condition is calculated in formula；
If operation accelerates and/or cruising mode, the motor vehicle is diesel vehicle, and step (3) described formula is as follows:
Wherein, FC is fuel consumption, and unit is to rise every 100 km (L/100km)；D is that combustion is tested under 288K (15 DEG C)
The density of material, unit are thousand gram per liters (kg/L)；CHCFor the hydrocarbon emission amount measured, unit is gram every km (g/
km)；CCOFor the CO emission measured, unit is gram every km (g/km)；For the CO2 emission measured
Amount, unit are gram every km (g/km).
If operation accelerates and cruising mode, the motor vehicle is gasoline car, and step (3) described formula is as follows:
Wherein, FC is fuel consumption, and unit is to rise every 100 km (L/100km)；D is that combustion is tested under 288K (15 DEG C)
The density of material, unit are thousand gram per liters (kg/L)；CHCFor the hydrocarbon emission amount measured, unit is gram every km (g/
km)；CCOFor the CO emission measured, unit is gram every km (g/km)；For the CO2 emission measured
Amount, unit are gram every km (g/km).
If running idling operation, step (3) formula for being applicable in calculating is as follows:
Wherein, FI is idle fuel consumption, and unit is liter per hour (L/h)；D is test fuel under 288K (15 DEG C)
Density, unit are thousand gram per liters (kg/L)；MHCFor the hydrocarbon emission amount measured, unit is gram (g)；MCOIt measures
CO emission, unit are gram (g)；For the CO2 emissions measured, unit is gram (g)；T is the time, single
Position is min.
Compared with the existing technology, the invention has the following advantages:
(1) the method for the invention corresponds to different operating conditions and works out different emission analyzer test programs, so that it is tested
As a result accuracy is significantly improved compared to fuel consumption meter；
(2) the method for the invention can complete the test to different operating condition fuel consumptions indoors, and test process can
It is precisely controlled temperature and humidity, external environment is avoided to change the influence to test result.
Detailed description of the invention
Fig. 1 is the stream of the test method of fuel consumption under customized operating condition described in specific embodiment of the invention part
Cheng Tu；
Fig. 2 is the Velocity-time relation curve under accelerating mode described in the embodiment of the present invention 1；
Fig. 3 is the Velocity-time relation curve under cruising mode described in the embodiment of the present invention 2.
Specific embodiment
The technical scheme of the invention is further explained by means of specific implementation.Those skilled in the art should be bright
, the described embodiments are merely helpful in understanding the present invention, should not be regarded as a specific limitation of the invention.
The flow chart of the test method of fuel consumption under customized operating condition described in specific embodiment of the invention part
As shown in Figure 1, as seen from the figure, the described method comprises the following steps:
(1) customized performance curve, i.e., the Velocity-time data relationship curve of customized operating condition, to work out are worked out
To emission analyzer test analysis program；
(2) prepare test vehicle and Resistance Value, i.e., carry out test vehicle traveling preheating under road resistance simulation model；
(3) vehicle after traveling preheating is subjected to Operation mode cycle according to customized operating condition described in step (1)；
(4) Vehicular exhaust is acquired, using the carbonaceous material concentration in emission analyzer analysis Vehicular exhaust, tests acquisition
The fuel consumption under the operating condition is calculated in exhaust gas volumes later.
The test vehicle of specific implementation method part is a kind of 4 wheel driven automatic catch vehicle, is tried according to I type of GB18352-2016
It tests requirement and carries out Vehicle preparation (including pretreatment, resistance determination etc.).
Embodiment 1
The present embodiment is the fuel consumption test under accelerating mode, specifically includes the following steps:
(1) accelerating mode curve, i.e., Velocity-time relation curve under accelerating mode, as shown in Fig. 2, the present embodiment are worked out
NEDC operating condition high regime accelerator is intercepted, as the accelerating mode curve of the present embodiment, speed accelerates to 68km/ by 0km/h
H, acceleration time are about 40s；
The emission analyzer test analysis program worked out according to above-mentioned accelerating mode curve is as follows: vehicle operation accelerates
The concentration and exhaust of the carbonaceous material generated in performance curve circulation, analyzer acquisition Vehicular exhaust and analysis and recording process
Volume is called analyzer database respective formula to calculate the discharge amount for acquiring carbonaceous material, and then is calculated under above-mentioned operating condition
Fuel consumption；
(2) after the traveling preheating that test vehicle is carried out to 30km, it is subjected to work according to accelerating mode described in step (1)
Condition circulation；
(3) CO in the tail gas of emission analyzer testing procedure (2) test vehicle is utilized2, CO and hydrocarbon HC
Concentration, and exhaust gas volumes are tested using constant volume sample CVS, the combustion under above-mentioned operating condition is calculated using following formula later
Expect consumption, test result is as shown in table 1；
Motor vehicle described in the present embodiment is gasoline car, and step (3) described formula is as follows:
Wherein, FC is fuel consumption, and unit is to rise every 100 km (L/100km)；D is that combustion is tested under 288K (15 DEG C)
The density of material, unit are thousand gram per liters (kg/L)；CHCFor the hydrocarbon emission amount measured, unit is gram every km (g/
km)；CCOFor the CO emission measured, unit is gram every km (g/km)；For the CO2 emission measured
Amount, unit are gram every km (g/km).
Embodiment 2
The present embodiment is the fuel consumption test under cruising mode, specifically includes the following steps:
(1) cruising mode's curve, i.e., Velocity-time relation curve under cruising mode, as shown in figure 3, the present embodiment are worked out
3 cruising modes are chosen altogether to test；Respectively 60km/h, 90km/h and 120km/h；
The emission analyzer test analysis program worked out according to above-mentioned cruising mode's curve is as follows: vehicle runs constant speed
The concentration and exhaust of the carbonaceous material generated in performance curve circulation, analyzer acquisition Vehicular exhaust and analysis and recording process
Volume calculates the discharge amount for acquiring carbonaceous material, and then the fuel consumption being calculated under above-mentioned operating condition；
(2) after the traveling preheating that test vehicle is carried out to 30km, it is subjected to work according to cruising mode described in step (1)
Condition circulation；
(3) CO in the tail gas of emission analyzer testing procedure (2) test vehicle is utilized2, CO and hydrocarbon HC
Concentration, and exhaust gas volumes are tested using constant volume sample CVS, the combustion under above-mentioned operating condition is calculated using following formula later
Expect consumption, the testing time under above-mentioned each cruising mode is 5min, and test result is as shown in table 1；
Motor vehicle described in the present embodiment is gasoline car, and step (3) described formula is as follows:
Wherein, FC is fuel consumption, and unit is to rise every 100 km (L/100km)；D is that combustion is tested under 288K (15 DEG C)
The density of material, unit are thousand gram per liters (kg/L)；CHCFor the hydrocarbon emission amount measured, unit is gram every km (g/
km)；CCOFor the CO emission measured, unit is gram every km (g/km)；For the CO2 emission measured
Amount, unit are gram every km (g/km).
Embodiment 3
The present embodiment is the fuel consumption test under idling operation, specifically includes the following steps:
(1) the present embodiment tests two kinds of idling operations, and vehicle is respectively placed in D gear and N is kept off；
The emission analyzer test analysis program worked out according to above-mentioned idling operation is as follows: vehicle runs idling operation
The concentration and exhaust body of the carbonaceous material generated in curve circulation, analyzer acquisition Vehicular exhaust and analysis and recording process
Product calculates the discharge amount for acquiring carbonaceous material, and then the fuel consumption being calculated under above-mentioned operating condition；
(2) after the traveling preheating that test vehicle is carried out to 30km, it is subjected to work according to idling operation described in step (1)
Condition circulation；
(3) CO in the tail gas of emission analyzer testing procedure (2) test vehicle is utilized2, CO and hydrocarbon HC
Concentration, and exhaust gas volumes are tested using constant volume sample CVS, the combustion under the operating condition is calculated using following formula later
Expect consumption, the testing time under each idling operation is 5min, and test result is as shown in table 1；
Motor vehicle described in the present embodiment is gasoline car, and step (3) described formula is as follows:
Wherein, FI is idle fuel consumption, and unit is liter per hour (L/h)；D is test fuel under 288K (15 DEG C)
Density, unit are thousand gram per liters (kg/L)；MHCFor the hydrocarbon emission amount measured, unit is gram (g)；MCOIt measures
CO emission, unit are gram (g)；For the CO2 emissions measured, unit is gram (g)；T is the time, single
Position is min.
Comparative example 1
This comparative example carries out Operation mode cycle as described in Example 1 on real road, and utilizes fuel consumption meter (SK-300
Type) its fuel consumption is tested, test result is as shown in table 1.
Comparative example 2
This comparative example carries out Operation mode cycle as described in Example 2 on real road, and utilizes fuel consumption meter (SK-300
Type) its fuel consumption is tested, test result is as shown in table 1.
Comparative example 3
This comparative example carries out Operation mode cycle as described in Example 3 on real road, and utilizes fuel consumption meter (SK-300
Type) its fuel consumption is tested, test result is as shown in table 1.
The result of fuel consumption under the customized operating condition that embodiment 1-3 and comparative example 1-3 are tested such as 1 institute of table
Show；
Table 1
As can be seen from the above table, it compares the test method of fuel for motor vehicle consumption of the present invention and is surveyed using fuel consumption meter
The test result of examination can be seen that under identical operating condition, is lower than using the oil consumption that the method for the invention is tested
The oil consumption tested using fuel consumption meter, but the variation tendency of test result is identical as fuel consumption meter, to illustrate institute of the present invention
It is feasible for stating method and carrying out the test of fuel consumption indoors, and avoids environmental change for the shadow of oil consumption test result
It rings, so that the test result of the method for the invention is more accurate.
And the fuel under different operating conditions is suitable for by the method for the invention it can be seen from the test result of embodiment 1-3
The accuracy of the test of consumption, test result is higher.
In conclusion the test method of fuel consumption of the present invention can not only carry out the survey of fuel consumption indoors
Examination, and its test for being suited to speed up operating condition, cruising mode and idling operation fuel consumption simultaneously, and test process avoids
It is influenced caused by environment, so that test result significantly improves.
The Applicant declares that the foregoing is merely a specific embodiment of the invention, but protection scope of the present invention not office
It is limited to this, it should be clear to those skilled in the art, any to belong to those skilled in the art and take off in the present invention
In the technical scope of dew, any changes or substitutions that can be easily thought of, and all of which fall within the scope of protection and disclosure of the present invention.
Claims (10)
1. the test method of fuel for motor vehicle consumption under a kind of customized operating condition, which is characterized in that the method includes following
Step:
(1) according to the Velocity Time data of customized operating condition, emission analyzer test analysis program is worked out；
(2) vehicle is recycled according to customized operating condition described in step (1), acquires Vehicular exhaust；
(3) using the carbonaceous material concentration in the Vehicular exhaust of emission analyzer analytical procedure (2) acquisition, the tail gas of acquisition is tested
Volume calculates the discharge amount for acquiring carbonaceous material, and then the fuel consumption being calculated under the operating condition.
2. the method as described in claim 1, which is characterized in that step (1) the establishment emission analyzer test analysis program
Method include: Velocity Time data according to customized operating condition, customized Velocity-time tables of data is established, in analyzer
User defined logic interface imports the customized Velocity-time tables of data, and establishment generates customized performance curve, using point
Analyzer master control integrated program calls the customized performance curve operation test to recycle the go forward side by side acquisition of end of line gas, analysis, calls
Database calculation formula obtains the discharge amount of carbonaceous material, calculates for subsequent combustion consumption；
Preferably, the Velocity Time data of the customized operating condition include the Velocity Time data of accelerating mode, cruising mode
In Velocity Time data or the Velocity Time data of idling operation any one or at least two combination.
3. method according to claim 1 or 2, which is characterized in that step (1) the customized operating condition include accelerating mode,
In cruising mode or idling operation any one or at least two combination.
4. the method according to claim 1, which is characterized in that step (1) the customized operating condition is to accelerate work
Condition, the method for the establishment emission analyzer test analysis program include: the Velocity Time data according to accelerating mode, are established certainly
The Velocity-time tables of data for defining accelerator, the speed of customized accelerator is imported using analyzer user custom block
Degree-time tables of data, establishment generate accelerating mode curve；The accelerating mode curve is called using analyzer master control integrated program
Operation test recycles the go forward side by side acquisition of end of line gas, analysis, after calling database calculation formula to obtain the discharge amount of carbonaceous material, be used for
Continuous fuel consumption calculates；
Preferably, the accelerating mode is selected from the accelerating sections of NEDC operating condition.
5. the method according to claim 1, which is characterized in that step (1) the customized operating condition is constant speed work
Condition, the method for the establishment emission analyzer test analysis program include: the Velocity Time data according to cruising mode, are established certainly
The Velocity-time tables of data for defining constant speed process, imports the speed-of customized constant speed process in analyzer user custom block
Time tables of data, establishment generate cruising mode's curve；Cruising mode's curve is called to transport using analyzer master control integrated program
Row test cycle is gone forward side by side the acquisition of end of line gas, analysis, and database calculation formula is called to obtain the discharge amount of carbonaceous material, for subsequent
Fuel consumption calculates；
Preferably, step (1) the customized operating condition is cruising mode, and the sampling time of tail gas is 3-15min in step (2)；
Preferably 5-10min.
6. the method according to claim 1, which is characterized in that step (1) the customized operating condition is idling work
Condition, the method for the establishment emission analyzer test analysis program include: the Velocity Time data according to idling operation, are established certainly
The Velocity-time tables of data for defining idling process, imports the speed-of customized idling process in analyzer user custom block
Time tables of data, establishment generate idling operation curve；The idling operation curve is called to transport using analyzer master control integrated program
Row test cycle is gone forward side by side the acquisition of end of line gas, analysis, and database calculation formula is called to obtain the discharge amount of carbonaceous material, for subsequent
Fuel consumption calculates；
Preferably, step (1) the customized operating condition is idling operation, and the sampling time of tail gas is 3-15min in step (2)；
Preferably 5-10min.
7. as the method according to claim 1 to 6, which is characterized in that vehicle is carried out 20- before carrying out step (2)
The traveling of 50km preheats；
Preferably, the traveling warm carries out under chassis dynamometer road resistance simulation model；
Preferably, described circulate on chassis dynamometer of step (2) carries out.
8. the method according to claim 1 to 7, which is characterized in that step (3) described carbonaceous material includes CO2, CO and
Hydrocarbon；
Preferably, step (3) described exhaust gas volumes test to obtain by constant volume sample CVS.
9. the method according to claim 1, which is characterized in that operation accelerates and/or cruising mode, described motor-driven
Vehicle is diesel vehicle, and step (3) formula for being applicable in calculating is as follows:
Wherein, FC is fuel consumption, and unit is to rise every 100 km；D is the density of test fuel under 288K, and unit is kilogram
Every liter；CHCFor the hydrocarbon emission amount measured, unit is gram every km；CCOFor the CO emission measured, unit
For gram every km；For the CO2 emissions measured, unit is gram every km；
Preferably, operation accelerates and/or cruising mode, the motor vehicle are gasoline car, and the formula of step (3) described calculating is such as
Under:
Wherein, FC is fuel consumption, and unit is to rise every 100 km；D is the density of test fuel under 288K, and unit is kilogram
Every liter；CHCFor the hydrocarbon emission amount measured, unit is gram every km；CCOFor the CO emission measured, unit
For gram every km；For the CO2 emissions measured, unit is gram every km；
Preferably, idling operation is run, step (3) formula for being applicable in calculating is as follows:
Wherein, FI is idle fuel consumption, and unit is liter per hour；D is the density of test fuel under 288K, and unit is kilogram
Every liter；MHCFor the hydrocarbon emission amount measured, unit is gram；MCOFor the CO emission measured, unit is gram；For the CO2 emissions measured, unit is gram that t is time, unit min.
10. such as the described in any item methods of claim 1-9, which is characterized in that the described method comprises the following steps:
(1) according to the Velocity Time data of customized operating condition, emission analyzer test analysis program is worked out；
If the customized operating condition is accelerating mode, the method for the establishment emission analyzer test analysis program includes: basis
The Velocity Time data of accelerating mode establish the Velocity-time tables of data of customized accelerator, customized in analyzer user
Module imports the Velocity-time tables of data of customized accelerator, and establishment generates accelerating mode curve；Utilize analyzer master control collection
At accelerating mode curve motion test cycle described in routine call go forward side by side end of line gas acquisition, analysis, call database calculation formula
It obtains the discharge amount of carbonaceous material, calculated for subsequent combustion consumption；
If the customized operating condition is cruising mode, the method for the establishment emission analyzer test analysis program includes: basis
The Velocity Time data of cruising mode establish the Velocity-time tables of data of customized constant speed process, customized in analyzer user
Module imports the Velocity-time tables of data of customized constant speed process, and establishment generates cruising mode's curve；Utilize analyzer master control collection
At cruising mode's curve motion test cycle described in routine call go forward side by side end of line gas acquisition, analysis, call database calculation formula
It obtains the discharge amount of carbonaceous material, calculated for subsequent combustion consumption；
If the customized operating condition is idling operation, the method for the establishment emission analyzer test analysis program includes: basis
The Velocity Time data of idling operation establish the Velocity-time tables of data of customized idling process, customized in analyzer user
Module imports the Velocity-time tables of data of customized idling process, and establishment generates idling operation curve；Utilize analyzer master control collection
At idling operation curve motion test cycle described in routine call go forward side by side end of line gas acquisition, analysis, call database calculation formula
It obtains the discharge amount of carbonaceous material, calculated for subsequent combustion consumption；
(2) vehicle is recycled according to customized operating condition described in step (1), acquires Vehicular exhaust；
(3) CO in the Vehicular exhaust of emission analyzer analytical procedure (2) acquisition is utilized2, CO and hydrocarbon concentration, and
Exhaust gas volumes are tested using constant volume sample CVS, calculate the discharge amount for acquiring carbonaceous material, are calculated later using following formula
Obtain the fuel consumption under the operating condition；；
If operation accelerates and/or cruising mode, the motor vehicle is diesel vehicle, and step (3) described formula is as follows:
Wherein, FC is fuel consumption, and unit is to rise every 100 km；D is the density of test fuel under 288K, and unit is kilogram
Every liter；CHCFor the hydrocarbon emission amount measured, unit is gram every km；CCOFor the CO emission measured, unit
For gram every km；For the CO2 emissions measured, unit is gram every km；
If operation accelerates and/or cruising mode, the motor vehicle is gasoline car, and step (3) described formula is as follows:
Wherein, FC is fuel consumption, and unit is to rise every 100 km；D is the density of test fuel under 288K, and unit is kilogram
Every liter；CHCFor the hydrocarbon emission amount measured, unit is gram every km；CCOFor the CO emission measured, unit
For gram every km；For the CO2 emissions measured, unit is gram every km；
If running idling operation, step (3) formula for being applicable in calculating is as follows:
Wherein, FI is idle fuel consumption, and unit is liter per hour；D is the density of test fuel under 288K, and unit is kilogram
Every liter；MHCFor the hydrocarbon emission amount measured, unit is gram；MCOFor the CO emission measured, unit is gram；For the CO2 emissions measured, unit is gram；T is time, unit min.
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Effective date of registration: 20231218 Address after: No.1, xinhongqi street, automobile economic and Technological Development Zone, Changchun, Jilin Province Patentee after: China Faw Co.,Ltd. Patentee after: CHANGCHUN AUTOMOTIVE TEST CENTER Co.,Ltd. Address before: No. 8899, Dongfeng Street, Changchun automobile economic and Technological Development Zone, Changchun City, Jilin Province, 130011 Patentee before: China Faw Co.,Ltd. |