CN101886940A - System and method for detecting energy consumption and emission of hybrid electric vehicle - Google Patents
System and method for detecting energy consumption and emission of hybrid electric vehicle Download PDFInfo
- Publication number
- CN101886940A CN101886940A CN201010222818XA CN201010222818A CN101886940A CN 101886940 A CN101886940 A CN 101886940A CN 201010222818X A CN201010222818X A CN 201010222818XA CN 201010222818 A CN201010222818 A CN 201010222818A CN 101886940 A CN101886940 A CN 101886940A
- Authority
- CN
- China
- Prior art keywords
- energy consumption
- unit
- data
- vehicle
- emission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a system for detecting the energy consumption and the emission of a hybrid electric vehicle. The system comprises a vehicular energy consumption and emission measuring device connected with a computer system, wherein the computer system comprises a data acquisition module and a detection and comparison model; the data acquisition module is used for acquiring and receiving the data of the vehicular energy consumption and emission measuring device, and the acquired data comprises fuel oil consumption, electric energy consumption and the mass emission of HC, CO, NOx and particulate matters (PM); the detection and comparison model comprises a plurality of databases, and at least the following information is stored in the databases: (A) energy consumption and emission data obtained in a field test of a testing field by a conventional diesel-engine vehicle, (B) energy consumption and emission data obtained in an analog line test by the conventional diesel-engine vehicle and (C) energy consumption and emission data obtained in a practical line operation by the conventional diesel-engine vehicle; and the acquired data is compared with the detection and comparison model by a data analyzing module to analyze the energy consumption and emission properties of hybrid electric vehicles of the same technological types or different technological types.
Description
Technical field
The present invention relates to a kind of energy consumption of vehicles discharging detection system and detection method, relate in particular to a kind of mixed power electric car energy consumption discharging detection system and detection method.
Background technology
At present, countries in the world government all vigorously advocates the development clean energy resource, adjusts industrial structure, carries out ecological construction, prevents and treats dust from land surface and control automobile pollution, makes atmosphere quality be improved.Wherein, in every prophylactico-therapeutic measures of being taked, the automobile pollution control measure account for about 1/3rd.
Along with the continuous maturation of heavy hybrid vehicle technology, for the development of low emission bus provides more optional direction, hybrid-power bus has bigger potential advantages aspect energy-saving and emission-reduction.Carrying out many successfully trials aspect this abroad.Countries in the world are all being tested and test operation mixed power electric car, and wherein, north America region rate has been introduced into the commercial operation stage, and the existing hybrid-power bus that surpasses 2000 of the U.S. puts into operation in each city.Britain intends with the speed of 500 of average annual growths existing common double-decker bus being replaced with new PHEV for meeting the 2012 London Olympic Games.Meanwhile, China also develops the low emission bus just energetically.Though, the research of estimating for heavy mixed power electric car energy-conserving and environment-protective (mainly being the U.S.) has abroad been carried out for many years, and abroad with regard to correlation technique and present Research be: the U.S. has carried out at the operation of hybrid-power bus and business-like research project.Its content mainly is that positive research is carried out in technology evaluation, selection and the enforcement when hybrid power passenger car is used for public passenger transportation, and the technological assessment of carrying out of proceeding from the reality mainly launches around the aspects such as cost, performance performance and reliability that mix in the power bus running process.In addition, the U.S. also around hybrid power technology public transport application start a series of project research.One of them big event be " activity of new technology vehicle testing " (AVTA), this project is intended to advance advanced energy-saving automobile technology from researching and developing to business-like transition, investigate by the market factor and customer demand, the durable reliability of vehicle actual motion is assessed these new technology vehicles.And China is at the early-stage in the research aspect this, and mainly is in application facet.In a word, no matter abroad still be domestic appraisement system at new forms of energy vehicle critical nature, the evaluation method of particularly heavy mixed power electric car (mainly being hybrid electric urban bus) energy-conserving and environment-protective then lacks always, at present, be starved of one more perfect at heavy mixed power electric car (mainly being hybrid electric urban bus) energy consumption discharging detection system and detection method, so that mixed power electric car energy-conserving and environment-protective performance is estimated.
Summary of the invention
At above-mentioned prior art, the invention provides a kind of mixed power electric car energy consumption discharging detection system, use this test macro to carry out the collection and the analysis of data, and utilize detection method of the present invention can analyze the energy consumption emission behavior of constructed type or different technologies type hybrid power car.Because motor vehicle driven by mixed power is except that the fuel consume power system with traditional conventional diesel-engine road vehicle, also increased driven by power (or generating) system that forms by battery, motor etc., have some features of orthodox car and electric automobile concurrently, so oil consumption test difference to some extent.In detection method of the present invention, considered that the electric weight energy storage changes the influence for the motor vehicle driven by mixed power practical oil consumption, carry out the oil consumption corrected Calculation of tested motor vehicle driven by mixed power according to China " GB/T 19754-2005 heavy mixed power electric car energy consumption test method ", thereby can estimate tested mixed power electric car during actual motion and problems such as the operating cost in the life cycle, fuel-economizing cost, discharging cutting down cost.
In order to solve the problems of the technologies described above, the technical scheme that mixed power electric car energy consumption discharging detection system of the present invention is achieved is: this detection system, comprise the vehicular energy consumption discharge measuring device that is connected with computer system, comprise in the described computer system: in order to gather, to receive the data acquisition module of described vehicular energy consumption discharge measuring device, the data of being gathered comprise: fuel consume, electric flux consumption and HC, CO, NO
xAnd the mass discharge of particle (PM); Detect comparison model,, store the energy consumption emissions data of the conventional diesel-engine road vehicle of following information: A. in the described database at least by in the test of place, testing field, obtaining comprising a plurality of databases; B. the energy consumption emissions data of conventional diesel-engine road vehicle by in the analog line test, obtaining; C. the energy consumption emissions data of conventional diesel-engine road vehicle by in the actual track operation, obtaining; In order to the above-mentioned data that collect are compared with detecting comparison model, thereby draw the data analysis module of testing result; Described vehicular energy consumption discharge measuring device comprises driving cycle tracking cell, gaseous contaminant discharge measuring unit, granular material discharged measuring unit and the energy consumption measurement unit that all is connected with a main control module; Described gaseous contaminant discharge measuring unit is connected with exhaust sampling and flow measurement device by pipeline with granular material discharged measuring unit; Described energy consumption measurement unit is made of with the fuel consumption meter that is connected with engine electrodymamometer; Described vehicular energy consumption emission test device is connected with described computer system by main control module wherein.
A kind of mixed power electric car energy consumption discharging of the present invention detection method, following steps are arranged: (one) sets up and detects comparison model: conventional diesel-engine road vehicle is carried out the test of place, testing field, analog line test and actual track operation test, utilize the vehicular energy consumption discharge measuring device in the discharging of the mixed power electric car energy consumption according to claim 1 detection system to measure emission performance and the energy consumption index of conventional diesel-engine road vehicle under different test conditions, the technical indicator in its actual track operation of monitoring record simultaneously; Wherein, energy consumption index comprises hundred kilometers fuel consumes (L/100km) and electric flux consumption at least, and the emission performance index comprises HC, CO, NO at least
xAnd the mass discharge (g/km) of particle (PM); Technical indicator comprises vehicle trouble, distance travelled, volume read-out, maintenance cost and critical component fault at least; With the mode of database with above-mentioned information stores in described computer system; (2) with the hybrid-power electric vehicle of different dynamic hybrid mode as measurand, and vehicular energy consumption discharge measuring device is installed in the vehicle of described measurand; (3) start vehicular energy consumption discharge measuring device, the fuel consume data that main control module collects the vehicle electric weight consumption data that comes from electrodymamometer and collect, collected by fuel consumption meter, the HC, the NO that collect by gaseous contaminant discharge measuring unit and granular material discharged measuring unit
X, CO and PM mass discharge information; (4) main control module in the described vehicular energy consumption emission test device is to the above-mentioned information of data acquisition module block transfer; (5) with data collecting module collected to above-mentioned all information pass to described data analysis module, after carrying out the corrected Calculation of oil consumption, data analysis module is according to tested comparison model and utilize following formula that the measurand PHEV is detected, and comprising: the energy-saving benefit that draws the measurand PHEV with fuel oil saving amount; Draw the pollutant emission benefit of measurand vehicle with the pollutant emission reduction of unit vehicle cost increment; The computing formula of pollutant emission benefit is as follows:
Wherein: B: the pollutant emission benefit, unit: gram/unit, Δ P: the measurand PHEV is with respect to the discharging reduction of conventional car, unit: gram; Mh: measurand PHEV cost, unit: unit; Mc: conventional vehicles cost, unit: unit; Δ My: tested motor vehicle driven by mixed power is saved the cost of fuel oil, unit: unit.
Compared with prior art, the invention has the beneficial effects as follows:
(1) utilizes vehicle-mounted measuring technology to carry out the discharging of motor vehicle driven by mixed power on test site and the actual travel circuit, oil consumption test, and the demonstration car is carried out track record, demonstrate in the mode of database and move the information management of fleet.According to the practical experience of demonstration operation, utilize mixed power electric car energy consumption discharging detection method that tested vehicle is carried out the evaluation of effects of energy conservation and environmental protection, to promote the application of mixed power electric car.
(2) the mixed power electric car energy consumption discharging detection system and the detection method that the present invention relates to for the optimization of hybrid power properties of product provides the data support, instruct enterprise to improve product, have improved technical feature.Based on discharging of mixed power electric car car load and energy consumption detection system under the real road service condition, can play a significant role aspect other motor vehicle driven by mixed power environmental protection and energy saving Performance Detection.
(3) set up rational energy consumption discharging and detected the compare of analysis model, and then can finish analysis and assessment the technical costs in the motor vehicle driven by mixed power life cycle, Environmental costs.The ready-made instrument of at present domestic not utilization maturation still, therefore setting up data compare of analysis model is of the present invention one big innovative point.By setting up rational detection comparison model, actual conditions in conjunction with China's mixed power electric car development, can finish analysis and assessment to the technical costs in the hybrid vehicle especially hybrid-power bus life cycle, Environmental costs, make the trial examination research that meets China's present stage mixed power electric car development, filled up the blank of China's research aspect hybrid-power bus demonstration running technology examination and energy conservation and environmental protection benefit analysis.
(4) utilize detection system of the present invention, operate to example with the demonstration of Beijing's hybrid-power bus, and reference and reference GB/T19754-2005 " heavy mixed power electric car energy consumption test method ", formulated heavy hybrid-power bus energy consumption emission testing method---" Beijing's hybrid-power bus demonstration running technology certification test outline ", the reference frame of formulating as the automobile industry recommended standard " heavy motor vehicle driven by mixed power discharge pollutants measuring method ".
Description of drawings
Fig. 1 is the vehicle-mounted energy consumption discharge measuring device synoptic diagram that the present invention relates to;
Fig. 2 is the logic relation picture between each module of mixed power electric car energy consumption discharging detection system of the present invention;
Fig. 3 is a mixed power electric car energy consumption discharging detection method process flow diagram of the present invention;
Fig. 4 is the dissimilar mixed power electric car fuel consumption data disposal route charts that relate among the present invention.
Among the figure:
1---sampling of tail gas thing and flow measurement device 2---engine
3---particulate matter measuring apparatus 4---electrodymamometer
5---fuel consumption meter 6---driving cycle tracker
7---main control module 8---gaseous contaminant measurement mechanism
10---vehicular energy consumption discharge measuring device 20---data acquisition module
30---detecting comparison model 40---data analysis module
50---data outputting module
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is done to describe in further detail.
As shown in Figure 2, mixed power electric car energy consumption discharging detection system of the present invention, comprise the vehicular energy consumption discharge measuring device 10 that is connected with computer system, comprise in the described computer system: in order to gather, to receive the data acquisition module 20 of described vehicular energy consumption discharge measuring device 10, these data comprise: fuel consume, electric flux consumption and HC, CO, NO
xAnd the mass discharge of particle (PM); Detect comparison model 30,, store the energy consumption emissions data of the conventional diesel-engine road vehicle of following information: A. in the described database at least by in the test of place, testing field, obtaining comprising a plurality of databases; B. the energy consumption emissions data of conventional diesel-engine road vehicle by in the analog line test, obtaining; C. the energy consumption emissions data of conventional diesel-engine road vehicle by in the actual track operation, obtaining; Certainly, according to the development plan of country, can also comprise D. country electric motor car application excitation index; Data analysis module 40, this data analysis module 40 are in order to comparing the above-mentioned data that collect with detecting comparison model, thus the testing result of drawing.
As shown in Figure 1, described vehicular energy consumption discharge measuring device 10 comprises driving cycle tracking cell 6, gaseous contaminant discharge measuring unit 8, granular material discharged measuring unit 3 and the energy consumption measurement unit that all is connected with a main control module 7; Described gaseous contaminant discharge measuring unit 8 is connected with sampling of tail gas thing and flow measurement device 1 by pipeline with granular material discharged measuring unit 3; Described energy consumption measurement unit is made of with the fuel consumption meter 5 that is connected with engine 2 electrodymamometer 4; Described vehicular energy consumption discharge measuring device 10 is connected with described computer system by main control module 7 wherein.
Be example below with the bus, describe the process that mixed power electric car energy consumption discharging detection method of the present invention realizes in conjunction with Fig. 3:
(1) set up the detection comparison model: conventional diesel-engine road vehicle is carried out the test of place, testing field, analog line test and actual track operation test, and the test of place, described testing field is to test according to specific operating condition on the code test place; Analog line test is that vehicle travels on the public bus network of its daily service but do not draw and carries a passenger, adopts bucket or sandbag to carry out the vehicle counterweight; Actual track operation examination is to examine according to the normal carrying operation of vehicle.
Utilize the vehicular energy consumption discharge measuring device 10 in the above-mentioned mixed power electric car energy consumption discharging detection system to measure emission performance and the energy consumption index of conventional diesel-engine road vehicle under different test conditions, wherein, energy consumption index mainly is divided into hundred kilometers fuel consumes (L/100km) and electric flux consumption, and the emission performance index mainly comprises HC, CO, NO
xAnd the mass discharge (g/km) of particle (PM).
Hundred kilometers fuel consumes are to measure fuel consumption by fuel consumption meter, and the distance travelled calculation of parameter according to record draws again.Electric flux consumption is difference according to the difference of hybrid vehicle electric weight energy storage device and to some extent then.For the batteries to store energy type, calculate the power change value by the integration and the electric battery both end voltage of electric current; For the super capacitor energy-storage type, then calculate the power change amount according to the difference of capacitance voltage before and after the test, computing formula is as follows:
Battery types:
The super capacitor type:
In the formula: NEC is the electric flux variable quantity of energy storage device, and unit is joule (J); A, b are the beginning and ending time of test process, unit second (s); V is the voltage at accumulator two ends, unit volt (V); I (t) is the momentary current intensity of accumulator bus in the test process, unit ampere (A); C is the rated capacity of super capacitor, per unit system (F); V
bBe respectively end of test (EOT) and test the capacitance voltage that begins, unit volt (V) with Va.
Utilize the GPS positioning system that the bus that each participates in operation is followed the tracks of, obtain status informations such as its position (longitude and latitude, the gradient etc.), travelling speed; Simultaneously, the technical indicator in its actual operation of monitoring record; Technical indicator comprises vehicle trouble, distance travelled, volume read-out, maintenance cost and critical component fault at least; In addition, in conjunction with existing national hybrid-electric car development plan, also can consider national electric motor car application excitation index, this index generally includes electric motor car tax revenue, charge and fiscal subsidy data etc.; In the storage unit of described computer system, utilize ripe database structure to carry out information management the above-mentioned data storage that records.
(2) (such as: hybrid-power electric vehicle series, parallel) as measurand, and vehicular energy consumption discharge measuring device (10) is installed in the vehicle of described measurand with the different dynamic hybrid mode; The OBS-2200 system that the ELPI analyser that solid contaminant proving installation in the vehicle-mounted energy consumption system for testing discharge can select for use Finland DEKATI company to release, gaseous contaminant proving installation can select for use Japanese HORIBA company to produce; Electrodymamometer can be selected WT1600 digital electric power meter for use; Fuel consumption meter can adopt the fuel consumption meter of FLOWTRONIC 210 sensors.Before using this test macro, vehicle-mounted annex such as air conditioning for automobiles should disconnect, and adopts necessary glissando when each measurement mechanism is installed, and guarantees that as far as possible test macro is not disturbed by too many vibration and environmental factor.Connect after the test macro, relevant apparatus should carry out necessary zero clearing and proofread and correct, dredges system preparation routines such as purifying and reveal inspection.
(3) pollutant emission proving installation and energy consumption testing device 10 should start under the control of main control module 7 synchronously, according to real-time working condition display system 6 speed of displaying signals, the driver operates Control of Automobile to travel under the operating mode of regulation by rational acceleration-deceleration.Simultaneously, rate signal is stored in the main control module 7 as the basic data of whole test result analysis, its recording frequency must not be lower than 1Hz.Vehicle exhaust is through exhaust sampling and flow measurement device 1 enters connected particulate matter measuring apparatus 3 and gaseous state contaminant measurement device 8 is analyzed, and analysis result is passed to main control module 7 measure control in real time.Utilize the charge and discharge electric current of 4 pairs of power accumulators of electrodymamometer and voltage with continuous the measuring of the frequency that is not less than 20Hz, the electric flux consumption that records is passed to main control module 7 and is measured control in real time.Utilize fuel consumption meter 5 to measure the fuel consume of engines 2 and measuring-signal is passed to main control module 7 control in real time.In a word, by said process main control module 7 collect the vehicle electric weight consumption data that comes from electrodymamometer 4 and collect, the fuel consume data that collect by fuel consumption meter 5, the HC, the NO that collect by gaseous contaminant discharge measuring unit 8 and granular material discharged measuring unit
X, CO and PM mass discharge information.
(4) main control module 7 in the described vehicular energy consumption emission test device 10 transmits above-mentioned information to data acquisition module 20.
(5) above-mentioned all information that data acquisition module 20 is collected pass to described data analysis module 40, and carry out the corrected Calculation of oil consumption; At present, the evaluation of motor vehicle driven by mixed power energy consumption also is subjected to people's attention day by day, because motor vehicle driven by mixed power is except that the fuel consume power system with traditional conventional diesel-engine road vehicle, also increased driven by power (or generating) system that forms by battery, motor etc., have some features of orthodox car and electric automobile concurrently, so oil consumption test difference to some extent.Consider that the electric weight energy storage changes the influence to the motor vehicle driven by mixed power practical oil consumption, pertinent literature has provided the electric weight energy storage and has changed the correction that fuel consume is calculated, with reference to " the heavy mixed power electric car energy consumption of GB/T 19754-2005 test method ", the energy consumption correction formula that this detection method is adopted is wherein revised final practical oil consumption result, it is the energy that the electric flux of 3.02kwh is equivalent to the 1L fuel oil, at last with the oil consumption result of conventional vehicle as benchmark, the energy consumption result of all vehicles is carried out normalized, analyze the energy-conservation level of the hybrid vehicle of different technologies type, with Fig. 4 is example, data result wherein is the average acquisitions afterwards of many instruction carriage oil-saving effects in every kind of vehicle, the HEV of two kinds of type of skills has good energy-saving effect as can be seen, especially tandem HEV has reached 12% rate of economizing gasoline.The detection and the energy consumption detection method of HEV emission behavior index are similar, also be to utilize onboard measure system to test various real-time emissions datas (as the flow of pollutant, concentration etc.), carry out series of computation according to parameters such as distance travelleds again and draw its mass discharge (g/km), the normalized of carrying out emissions data at last obtains the discharging reduction rate of different automobile types.In the various technical examination modes of real vehicle operation, particularly specify the place test under the operating mode, the reproducibility of test loop will influence test findings to a great extent, therefore, be no less than three times test, the mean value of test findings is as the test data of last normalized several times.
After finishing above-mentioned oil consumption corrected Calculation, data analysis module 40 is according to detecting comparison model 30 and utilizing following formula that the measurand PHEV is carried out energy consumption and discharging detection, based on real vehicle demonstration operation oil consumption of different technologies vehicle and discharging reduction data down, in conjunction with calculation of parameter such as the distance travelled in the vehicle life cycle, operating cost, Breakdown Maintenance cost, fuel-economizing cost discharge pollutants (HC, CO, NO
xAnd particle) cutting down cost is set up the computation model reasonably be used to detect the energy-conservation and emission reduction effect of measurand PHEV, draws the energy-saving benefit of measurand PHEV with fuel oil saving amount that is:; Draw the pollutant emission benefit of measurand vehicle with the pollutant emission reduction of unit vehicle cost increment, its computing formula is:
Wherein: B: pollutant emission benefit, unit: gram/unit; Δ P: the measurand PHEV is with respect to the discharging reduction of conventional car, unit: gram; Mh: measurand PHEV cost, unit: unit; Mc: conventional vehicles cost, unit: unit; Δ My: tested motor vehicle driven by mixed power is saved the cost of fuel oil, unit: unit.
According to the result of calculation of above-mentioned formula and in conjunction with the customary means in this area, can carry out cost analysis in the hybrid vehicle life cycle and assessment.In addition, national electric motor car application incentive policy also will reduce the acquisition cost of motor vehicle driven by mixed power greatly, thereby makes its energy conservation and environmental protection benefit clearer and more definite.
Embodiment:
In order to prove absolutely detection system of the present invention, carried out the test of mixed power electric car discharging and energy consumption at a certain standard testing field, the test outline is main with reference to national standard " the heavy mixed power electric car energy consumption of GB/T 19754-2005 test method ".
Select three hybrid electric vehicles (that is: HEV (1), HEV (2), HEV (3)) to move two typical urban public transport circulations continuously and be once complete test as tested vehicle, and test triplicate by standard-required at every turn, get its arithmetic mean as test findings.The test of discharging then is to test therewith simultaneously, utilizes that the on-board emission test device obtains the emissions data of above-mentioned vehicle (also comprise a reference conventional vehicles, see Table the data on conventional vehicles one hurdle in 1) under this circulation among the present invention, and is as shown in table 1.
Table 1 test vehicle fuel consume and emission test data
| Vehicle | Actual mileage (km) | Revise oil consumption (L) | Revise fuel consumption per hundred kilometers L/100km | ??HC??(g/km) | ??CO??(g/km) | ??NOx??(g/km) | ??PM??mg/km |
| ??HEV(1) | ??11.42 | ??4.01 | ??35.11 | ??0.21 | ??0.7 | ??10.83 | ??51.76 |
| ??HEV(2) | ??11.11 | ??3.94 | ??35.5 | ??0.11 | ??0.65 | ??15.12 | ??18.82 |
| ??HEV(3) | ??11.55 | ??3.3 | ??28.55 | ??0.19 | ??1.46 | ??11.94 | ??22.35 |
| Conventional vehicles | ??11.38 | ??4.3 | ??37.77 | ??1.23 | ??1.17 | ??11.37 | ??78.82 |
Record motor vehicle driven by mixed power fuel consume and emission test data according to the hybrid power vehicle-mounted proving installation of employing in service of demonstrating.From aforesaid comparison model database, extract discharging and the fuel consume information of place test phase pollutant HC, CO, NOx and PM, motor vehicle driven by mixed power test result and reference conventional vehicles are compared, calculate the discharging reduction rate and the fuel consume reduction rate of hybrid power respectively, as shown in table 2.
Table 2 hybrid power fuel consume and discharging reduction rate
Utilize the discharging reduction rate of table 2 different automobile types and fuel consume reduction rate and, can calculate the discharging reduction of each vehicle and the reduction of fuel consume in conjunction with distance travelled, as shown in table 3.
Table 3 hybrid power fuel consume and discharging reduction
Can draw the total cost increment of motor vehicle driven by mixed power according to acquisition cost, operating cost and the Breakdown Maintenance cost of demonstration operation phase motor vehicle driven by mixed power and conventional vehicles.The amount of fuel that hybrid power is saved is according to the market price (6 yuan/L) calculate can obtain the expense that hybrid power is saved fuel oil.Save the expense of fuel oil from total cost increment deduction and cut down back cost increment as the hybrid power oil consumption.The pollutant emission benefit that the ratio (formula of aforementioned calculating B) that utilizes motor vehicle driven by mixed power pollutant emission reduction and oil consumption to cut down back cost increment can draw in the demonstration run duration is as shown in table 4.
Table 4 hybrid power discharging performance analysis
Computing method according to above-mentioned demonstration run duration fuel consume and discharge capacity, in conjunction with annual distance travelled 35000km (supposing that the annual distance travelled of all motor vehicle driven by mixed powers all reaches 35000km), can calculate annual different automobile types fuel consume and pollutant emission reduction, as shown in table 5.
Annual fuel consume of table 5 and discharging reduction
The ratio (formula of aforementioned calculating B) that utilizes hybrid power year pollutant emission amount of subduing and oil consumption to cut down back cost increment can draw the discharging benefit of annual different pollutants, and is as shown in table 6.
The annual pollutant emission performance analysis guide look of table 6
In general, the life cycle of public transit vehicle is 15 years, and distance travelled can reach 500000 kilometers.Computing method according to place, testing field test period fuel consume and discharge capacity, in conjunction with distance travelled in the vehicle life cycle (supposing that distance travelled can both reach 500000km in all motor vehicle driven by mixed power life cycles), can calculate each vehicle fuel consume and pollutant emission reduction in the life cycle, as shown in table 7.
Fuel consume and discharging reduction in table 7 life cycle
In the life cycle of motor vehicle driven by mixed power, 3 motor vehicle driven by mixed powers totally can be saved fuel oil 70750L with respect to conventional vehicles, and the discharge capacity that reduces pollutant amounts to 2.244 tons, has the good energy-conservation emission reduction effect.
The ratio that utilizes interior pollutant emission reduction of motor vehicle driven by mixed power life cycle and oil consumption to cut down back cost increment can draw the discharging benefit of different pollutants, and is as shown in table 8.
Table 8 life cycle internal contamination thing discharging performance analysis
To sum up, the know-why that mixed power electric car energy consumption discharging detection system of the present invention adopts is: adopt the on-board emission test technology, carry out periodicity line test and the fixedly test of operating mode of place to the heavy hybrid-power bus of participation Beijing hybrid-power bus demonstration operation with as the conventional diesel oil bus according to object.Develop the compare of analysis model simultaneously,, take the discharging of method research hybrid-power bus and the fuel economy measuring technology of " operational management-testing experiment-model analysis " in conjunction with the data message of demonstration operation project.
The technical characterstic that operates to embodiment with the hybrid-power bus demonstration is:
HEV demonstration operation combines with vehicle testing.Utilize vehicle-mounted measuring technology, carry out discharging, oil consumption test on test site and the actual public bus network.The test site test is discharging and the oil consumption level between the test different technologies vehicle under same test conditions, and these data are as the discharging and the oil consumption reference data of demonstration operational vehicle; Vehicle-mounted test on the actual motion circuit stresses to obtain discharging and the oil consumption level under the vehicle actual motion state.
HEV demonstration operation combines with data acquisition.Regularly demonstration fleet is carried out track record, the data of gathering comprise vehicle trouble, maintenance or maintenance information, critical component fault, maintenance or replacing information, fuel adds record and Vehicle-Miles of Travel etc., demonstrates in the mode of database and moves fleet's information management.
HEV demonstration operation combines with model analysis.Performance model analysis tool (detection comparison model), finish the comprehensive assessment of fleet operations, emphasis is analyzed the performance between hybrid-power bus and the conventional bus, between the different technologies type hybrid power bus, between the different manufacturers of the constructed type hybrid-power bus, the environmental protection and energy saving benefit of synthetic study demonstration operational vehicle.
Practical experience according to fleet's demonstration operation, with reference to using for reference the successful precedent of advanced country aspect the electric automobile preferential policy, the electric automobile application incentive policy that research suits domestic current research and development technology level, tallies with the national condition, comprise measures such as tax revenue, charge and fiscal subsidy, promote domestic energy-conserving and environment-protective vehicle to apply.
Hybrid-power bus discharging, oil consumption test.In the road operational process, realize quantitative measurment to all discharge pollutants (not only comprise gaseous contaminant, also comprise particle) and fuel consumes.Research to develop hybrid-power bus emission test rules and method, integrated complete hybrid-power bus system for testing discharge is of the present invention one big innovation point.
Hybrid-power bus environmental protection and energy saving performance analysis instrument (computing formula of conversion) is finished analysis and assessment to the technical costs in the hybrid-power bus life cycle, Environmental costs.
Utilize the testing result of mixed power electric car energy consumption discharging detection system of the present invention, can finish hybrid-power bus environmental protection and energy saving performance analysis, the environmental protection and energy saving performance analysis principle and the method for research demonstration operational vehicle, exploitation demonstration Operational Data Analysis detection model.Meanwhile, also obtained the service data information of mass efficient, comprised hybrid-power bus and as every operating index of traditional bus of reference object: the cost of vehicle, discharging, oil consumption, power performance, input and operating cost, reliability, permanance, security, training and daily servicing cost etc.Detection system applicable scope emphasis of the present invention is that the performance between hybrid-power bus and the conventional bus, between the different technologies type hybrid power bus, between the different manufacturers of the constructed type hybrid-power bus is analyzed, thereby by the environmental protection and energy saving benefit of detection system synthetic study demonstration operational vehicle of the present invention.
Although invention has been described in conjunction with the accompanying drawings above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; under the situation that does not break away from aim of the present invention, can also make a lot of distortion, these all belong within the protection of the present invention.
Claims (4)
1. a mixed power electric car energy consumption discharging detection system comprises the vehicular energy consumption discharge measuring device (10) that is connected with computer system, it is characterized in that: comprise in the described computer system:
Data acquisition module (20)---in order to gather, to receive the data of described vehicular energy consumption discharge measuring device (10), comprising: fuel consume, electric flux consumption and HC, CO, NO
xAnd the mass discharge of particle (PM);
Detect comparison model (30)---comprising a plurality of databases, store following information in the described database at least:
A. the energy consumption emissions data of conventional diesel-engine road vehicle by in the test of place, testing field, obtaining;
B. the energy consumption emissions data of conventional diesel-engine road vehicle by in the analog line test, obtaining;
C. the energy consumption emissions data of conventional diesel-engine road vehicle by in the actual track operation, obtaining;
Data analysis module (40)---in order to the above-mentioned data that collect are compared with detecting comparison model, thus the testing result of drawing;
Described vehicular energy consumption discharge measuring device (10) comprises driving cycle tracking cell (6), gaseous contaminant discharge measuring unit (8), granular material discharged measuring unit (3) and the energy consumption measurement unit that all is connected with a main control module (7); Described gaseous contaminant discharge measuring unit (8) is connected with exhaust sampling and flow measurement device (1) by pipeline with granular material discharged measuring unit (3); Described energy consumption measurement unit is made of with the fuel consumption meter (5) that is connected with engine (2) electrodymamometer (4);
Described vehicular energy consumption emission test device (10) is connected with described computer system by main control module (7) wherein.
2. according to the described mixed power electric car energy consumption discharging of claim 1 detection system, it is characterized in that the ELPI analyser that described particle measuring unit (3) selects for use Finland DEKATI company to release; The OBS-2200 system that described gaseous contaminant measuring unit (8) selects for use Japanese HORIBA company to produce; Described electrodymamometer (4) is selected WT1600 digital electric power meter for use; Described fuel consumption meter (5) adopts the fuel consumption meter of FLOWTRONIC 210 sensors.
3. according to the described mixed power electric car energy consumption discharging of claim 1 detection system, it is characterized in that described exhaust sampling and flow measurement device (1) comprise the exhaust flow-meter that is connected with described gaseous contaminant discharge measuring unit (8) at least.
4. mixed power electric car energy consumption discharging detection method is characterized in that, is to adopt according to claim 1 that mixed power electric car energy consumption discharging detection system detects, and following steps are arranged:
(1) sets up the detection comparison model: conventional diesel-engine road vehicle is carried out the test of place, testing field, analog line test and actual track operation test, utilize the vehicular energy consumption discharge measuring device (10) in the discharging of the mixed power electric car energy consumption according to claim 1 detection system to measure emission performance and the energy consumption index of conventional diesel-engine road vehicle under different test conditions, the technical indicator in its actual track operation of monitoring record simultaneously; Wherein, energy consumption index comprises hundred kilometers fuel consumes (L/100km) and electric flux consumption at least, and the emission performance index comprises HC, CO, NO at least
xAnd the mass discharge (g/km) of particle (PM); Technical indicator comprises vehicle trouble, distance travelled, volume read-out, maintenance cost and critical component fault at least;
With the mode of database with above-mentioned information stores in described computer system;
(2) with the hybrid-power electric vehicle of different dynamic hybrid mode as measurand, and vehicular energy consumption discharge measuring device (10) is installed in the vehicle of described measurand;
(3) start vehicular energy consumption discharge measuring device (10), the fuel consume data that main control module (7) collects the vehicle electric weight consumption data that comes from electrodymamometer (4) and collect, collected by fuel consumption meter (5), the HC, the NO that collect by gaseous contaminant discharge measuring unit (8) and granular material discharged measuring unit (3)
X, CO and PM mass discharge information;
(4) main control module (7) in the described vehicular energy consumption emission test device (10) transmits above-mentioned information to data acquisition module (20);
(5) above-mentioned all information that data acquisition module (20) is collected pass to described data analysis module (40), after carrying out the corrected Calculation of oil consumption, data analysis module (40) comprises according to detecting comparison model (30) and utilizing following formula that the measurand PHEV is detected:
Draw the energy-saving benefit of measurand PHEV with fuel oil saving amount;
Draw the pollutant emission benefit of measurand vehicle with the pollutant emission reduction of unit vehicle cost increment; Its computing formula is as follows:
Wherein:
B: the pollutant emission benefit, unit: gram/unit,
Δ P: the measurand PHEV is with respect to the discharging reduction of conventional car, unit: gram;
Mh: measurand PHEV cost, unit: unit;
Mc: conventional vehicles cost, unit: unit;
Δ My: tested hybrid power is saved the cost of fuel oil, unit: unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010222818XA CN101886940A (en) | 2010-07-09 | 2010-07-09 | System and method for detecting energy consumption and emission of hybrid electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010222818XA CN101886940A (en) | 2010-07-09 | 2010-07-09 | System and method for detecting energy consumption and emission of hybrid electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101886940A true CN101886940A (en) | 2010-11-17 |
Family
ID=43072949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010222818XA Pending CN101886940A (en) | 2010-07-09 | 2010-07-09 | System and method for detecting energy consumption and emission of hybrid electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101886940A (en) |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155962A (en) * | 2011-03-04 | 2011-08-17 | 奇瑞汽车股份有限公司 | System and method for accurately measuring instantaneous oil consumption value of automobile |
| CN102169002A (en) * | 2011-01-04 | 2011-08-31 | 武汉理工大学 | Method for measuring fuel consumption and discharge of hybrid electromobile |
| CN102288243A (en) * | 2011-05-12 | 2011-12-21 | 通标标准技术服务(上海)有限公司 | Passenger car energy consumption detecting method |
| CN102735303A (en) * | 2012-07-16 | 2012-10-17 | 奇瑞汽车股份有限公司 | Energy consumption amount experiment calculation method of increased stroke type electric automobile |
| CN103049942A (en) * | 2011-10-06 | 2013-04-17 | 通用汽车环球科技运作有限责任公司 | Acquisition of in-vehicle sensor data and rendering of aggregate average performance indicators |
| CN103838971A (en) * | 2014-03-12 | 2014-06-04 | 中国航天系统工程有限公司 | Method for computing dynamical traffic energy consumption and emission of urban road networks |
| CN103852671A (en) * | 2014-03-27 | 2014-06-11 | 奇瑞汽车股份有限公司 | Method for testing dynamic balance of electric quantity of car |
| CN104316324A (en) * | 2013-10-28 | 2015-01-28 | 合肥国骋新能源汽车技术有限公司 | Automobile carbon emission detection, charging and controlling apparatus |
| CN104580374A (en) * | 2014-12-15 | 2015-04-29 | 北京九五智驾信息技术股份有限公司 | Vehicle energy consumption analysis system based on internet of vehicles |
| CN104680335A (en) * | 2015-03-24 | 2015-06-03 | 北京闪信鼎中技术有限公司 | Evaluation method for new energy source automobile |
| CN105044278A (en) * | 2015-04-22 | 2015-11-11 | 北京交通大学 | Detection method and detection apparatus of carbon emission of vehicles |
| CN105786900A (en) * | 2014-12-22 | 2016-07-20 | 上海机动车检测中心 | Emission big data based automobile environmental protection analysis method and system |
| CN107063351A (en) * | 2017-04-20 | 2017-08-18 | 苏州华业检测技术服务有限公司 | A kind of vehicular discharge measuring equipment and its measuring method |
| CN108645630A (en) * | 2018-06-27 | 2018-10-12 | 奇瑞万达贵州客车股份有限公司 | A kind of plug-in hybrid passenger car road energy consumption testing device and test method |
| CN109188073A (en) * | 2018-08-03 | 2019-01-11 | 中国汽车工程研究院股份有限公司 | Plug-in hybrid new-energy automobile method for testing energy consumption |
| CN109489753A (en) * | 2019-01-02 | 2019-03-19 | 长沙南车电气设备有限公司 | A kind of locomotive energy consumption measuring device |
| CN110222952A (en) * | 2019-05-14 | 2019-09-10 | 国网浙江电动汽车服务有限公司 | A kind of electric car Green Development system index calculation method |
| CN110222943A (en) * | 2019-05-14 | 2019-09-10 | 国网浙江电动汽车服务有限公司 | A kind of electric vehicle energy consumption saving evaluation method |
| CN110222945A (en) * | 2019-05-14 | 2019-09-10 | 国网浙江电动汽车服务有限公司 | A kind of electric vehicle green emission reduction index evaluation method |
| CN110487343A (en) * | 2019-09-22 | 2019-11-22 | 安徽安凯汽车股份有限公司 | A kind of simple oil consumption testing device of car and its working method |
| CN110588841A (en) * | 2019-09-12 | 2019-12-20 | 清华大学 | Plug-in hybrid power system configuration selection method based on limit energy-saving rate evaluation |
| CN110702426A (en) * | 2019-10-23 | 2020-01-17 | 中车资阳机车有限公司 | Method for calculating fuel saving rate of hybrid power shunting locomotive |
| CN112046762A (en) * | 2020-09-07 | 2020-12-08 | 南京航空航天大学 | Turboprop engine-based hybrid unmanned aerial vehicle and take-off and landing control method thereof |
| CN112528491A (en) * | 2020-12-08 | 2021-03-19 | 潍柴动力股份有限公司 | Method and device for calculating engine SOF (solid oxide Filter) original emission, storage medium and electronic equipment |
| CN113074952A (en) * | 2021-03-08 | 2021-07-06 | 中国汽车技术研究中心有限公司 | Energy consumption testing rack, system and method for power system of plug-in hybrid electric vehicle |
| EP4075408A1 (en) | 2021-04-14 | 2022-10-19 | IFP Energies nouvelles | Method for determining the amount of pollutant emissions emitted by a vehicle on a section of a road network |
-
2010
- 2010-07-09 CN CN201010222818XA patent/CN101886940A/en active Pending
Cited By (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169002A (en) * | 2011-01-04 | 2011-08-31 | 武汉理工大学 | Method for measuring fuel consumption and discharge of hybrid electromobile |
| CN102169002B (en) * | 2011-01-04 | 2013-03-20 | 武汉理工大学 | Method for measuring fuel consumption and discharge of hybrid electromobile |
| CN102155962B (en) * | 2011-03-04 | 2012-08-22 | 奇瑞汽车股份有限公司 | System and method for accurately measuring instantaneous oil consumption value of automobile |
| CN102155962A (en) * | 2011-03-04 | 2011-08-17 | 奇瑞汽车股份有限公司 | System and method for accurately measuring instantaneous oil consumption value of automobile |
| CN102288243A (en) * | 2011-05-12 | 2011-12-21 | 通标标准技术服务(上海)有限公司 | Passenger car energy consumption detecting method |
| CN102288243B (en) * | 2011-05-12 | 2012-10-17 | 通标标准技术服务(上海)有限公司 | Passenger car energy consumption detecting method |
| CN103049942A (en) * | 2011-10-06 | 2013-04-17 | 通用汽车环球科技运作有限责任公司 | Acquisition of in-vehicle sensor data and rendering of aggregate average performance indicators |
| US9299201B2 (en) | 2011-10-06 | 2016-03-29 | GM Global Technology Operations LLC | Acquisition of in-vehicle sensor data and rendering of aggregate average performance indicators |
| CN102735303A (en) * | 2012-07-16 | 2012-10-17 | 奇瑞汽车股份有限公司 | Energy consumption amount experiment calculation method of increased stroke type electric automobile |
| CN104316324A (en) * | 2013-10-28 | 2015-01-28 | 合肥国骋新能源汽车技术有限公司 | Automobile carbon emission detection, charging and controlling apparatus |
| CN103838971A (en) * | 2014-03-12 | 2014-06-04 | 中国航天系统工程有限公司 | Method for computing dynamical traffic energy consumption and emission of urban road networks |
| CN103852671A (en) * | 2014-03-27 | 2014-06-11 | 奇瑞汽车股份有限公司 | Method for testing dynamic balance of electric quantity of car |
| CN104580374A (en) * | 2014-12-15 | 2015-04-29 | 北京九五智驾信息技术股份有限公司 | Vehicle energy consumption analysis system based on internet of vehicles |
| CN105786900A (en) * | 2014-12-22 | 2016-07-20 | 上海机动车检测中心 | Emission big data based automobile environmental protection analysis method and system |
| CN104680335A (en) * | 2015-03-24 | 2015-06-03 | 北京闪信鼎中技术有限公司 | Evaluation method for new energy source automobile |
| CN105044278A (en) * | 2015-04-22 | 2015-11-11 | 北京交通大学 | Detection method and detection apparatus of carbon emission of vehicles |
| CN107063351A (en) * | 2017-04-20 | 2017-08-18 | 苏州华业检测技术服务有限公司 | A kind of vehicular discharge measuring equipment and its measuring method |
| CN108645630A (en) * | 2018-06-27 | 2018-10-12 | 奇瑞万达贵州客车股份有限公司 | A kind of plug-in hybrid passenger car road energy consumption testing device and test method |
| CN109188073A (en) * | 2018-08-03 | 2019-01-11 | 中国汽车工程研究院股份有限公司 | Plug-in hybrid new-energy automobile method for testing energy consumption |
| CN109489753A (en) * | 2019-01-02 | 2019-03-19 | 长沙南车电气设备有限公司 | A kind of locomotive energy consumption measuring device |
| CN109489753B (en) * | 2019-01-02 | 2023-09-22 | 长沙楠车电气设备有限公司 | Locomotive energy consumption measuring device |
| CN110222952A (en) * | 2019-05-14 | 2019-09-10 | 国网浙江电动汽车服务有限公司 | A kind of electric car Green Development system index calculation method |
| CN110222943A (en) * | 2019-05-14 | 2019-09-10 | 国网浙江电动汽车服务有限公司 | A kind of electric vehicle energy consumption saving evaluation method |
| CN110222945A (en) * | 2019-05-14 | 2019-09-10 | 国网浙江电动汽车服务有限公司 | A kind of electric vehicle green emission reduction index evaluation method |
| CN110222945B (en) * | 2019-05-14 | 2023-08-22 | 国网浙江电动汽车服务有限公司 | Green emission reduction index estimation method for electric vehicle |
| CN110222952B (en) * | 2019-05-14 | 2023-07-07 | 国网浙江电动汽车服务有限公司 | Method for calculating green development system index of electric automobile |
| CN110588841A (en) * | 2019-09-12 | 2019-12-20 | 清华大学 | Plug-in hybrid power system configuration selection method based on limit energy-saving rate evaluation |
| CN110487343B (en) * | 2019-09-22 | 2024-04-16 | 安徽安凯汽车股份有限公司 | Simple fuel consumption testing device for passenger car and working method thereof |
| CN110487343A (en) * | 2019-09-22 | 2019-11-22 | 安徽安凯汽车股份有限公司 | A kind of simple oil consumption testing device of car and its working method |
| CN110702426A (en) * | 2019-10-23 | 2020-01-17 | 中车资阳机车有限公司 | Method for calculating fuel saving rate of hybrid power shunting locomotive |
| CN112046762A (en) * | 2020-09-07 | 2020-12-08 | 南京航空航天大学 | Turboprop engine-based hybrid unmanned aerial vehicle and take-off and landing control method thereof |
| CN112046762B (en) * | 2020-09-07 | 2021-10-22 | 南京航空航天大学 | Turboprop engine-based hybrid unmanned aerial vehicle and take-off and landing control method thereof |
| CN112528491A (en) * | 2020-12-08 | 2021-03-19 | 潍柴动力股份有限公司 | Method and device for calculating engine SOF (solid oxide Filter) original emission, storage medium and electronic equipment |
| CN112528491B (en) * | 2020-12-08 | 2022-11-29 | 潍柴动力股份有限公司 | Method and device for calculating engine SOF original emission, storage medium and electronic equipment |
| CN113074952A (en) * | 2021-03-08 | 2021-07-06 | 中国汽车技术研究中心有限公司 | Energy consumption testing rack, system and method for power system of plug-in hybrid electric vehicle |
| FR3122011A1 (en) | 2021-04-14 | 2022-10-21 | IFP Energies Nouvelles | Method for determining the quantity of polluting emissions emitted by a vehicle on a section of a road network |
| EP4075408A1 (en) | 2021-04-14 | 2022-10-19 | IFP Energies nouvelles | Method for determining the amount of pollutant emissions emitted by a vehicle on a section of a road network |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101886940A (en) | System and method for detecting energy consumption and emission of hybrid electric vehicle | |
| Duarte et al. | Analysis of fuel consumption and pollutant emissions of regulated and alternative driving cycles based on real-world measurements | |
| Rosero et al. | Effects of passenger load, road grade, and congestion level on real-world fuel consumption and emissions from compressed natural gas and diesel urban buses | |
| CN104715605B (en) | A kind of traffic circulation data and emissions data coupling process and system based on VSP distributions | |
| Tong et al. | On-road motor vehicle emissions and fuel consumption in urban driving conditions | |
| He et al. | Energy consumption and well-to-wheels air pollutant emissions of battery electric buses under complex operating conditions and implications on fleet electrification | |
| Wang et al. | On-road vehicle emission inventory and its uncertainty analysis for Shanghai, China | |
| Meneguzzer et al. | Comparison of exhaust emissions at intersections under traffic signal versus roundabout control using an instrumented vehicle | |
| Song et al. | Estimation of fuel efficiency of road traffic by characterization of vehicle-specific power and speed based on floating car data | |
| Fernandes et al. | Are internally observable vehicle data good predictors of vehicle emissions? | |
| Saharidis et al. | Critical overview of emission calculation models in order to evaluate their potential use in estimation of Greenhouse Gas emissions from in port truck operations | |
| Zhai et al. | Development of a modal emissions model for a hybrid electric vehicle | |
| CN109613905B (en) | Method and device for dynamically identifying actual operation high-oil-consumption severe working condition of heavy commercial vehicle | |
| CN102054222A (en) | Method for quantizing urban motor vehicle emission load based on resident trip analysis | |
| Wang et al. | Developing a high-resolution vehicular emission inventory by integrating an emission model and a traffic model: Part 1—Modeling fuel consumption and emissions based on speed and vehicle-specific power | |
| CN101963800A (en) | Remote real-time monitoring system and monitoring method for diesel vehicle road emission | |
| CN113158125B (en) | Diesel vehicle NOx emission evaluation method based on Internet of vehicles | |
| Zhang et al. | Emissions characteristics for heavy-duty diesel trucks under different loads based on vehicle-specific power | |
| Beevers et al. | The impact of congestion charging on vehicle speed and its implications for assessing vehicle emissions | |
| CN104091440B (en) | Based on the urban traffic blocking Cost Estimation of category of roads and type of vehicle | |
| Mera et al. | Including engine data for energy and pollutants assessment into the vehicle specific power methodology | |
| Rymaniak | Comparison of the combustion engine operating parameters and the ecological indicators of an urban bus in dynamic type approval tests and in actual operating conditions | |
| CN113537803A (en) | Carbon emission reduction accounting method | |
| CN115655730A (en) | Method for calculating NOx emission in PEMS test of heavy-duty diesel vehicle | |
| Liu et al. | Technology and threshold: an empirical study of road passenger transport emissions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101117 |
|
| WD01 | Invention patent application deemed withdrawn after publication |