CN108444497A - A kind of test method of vehicle continual mileage, chassis dynamometer and test system - Google Patents
A kind of test method of vehicle continual mileage, chassis dynamometer and test system Download PDFInfo
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- CN108444497A CN108444497A CN201810270634.7A CN201810270634A CN108444497A CN 108444497 A CN108444497 A CN 108444497A CN 201810270634 A CN201810270634 A CN 201810270634A CN 108444497 A CN108444497 A CN 108444497A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C22/00—Measuring distance traversed on the ground by vehicles, persons, animals or other moving solid bodies, e.g. using odometers, using pedometers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/24—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
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Abstract
The embodiment provides a kind of test method of vehicle continual mileage, chassis dynamometer and test system, wherein methods to include：Obtain the road resistance of taxing after loss resistance of the standard vehicle on chassis dynamometer, and pre- exploitation vehicle drag fitting；According to the curvilinear equation of the curvilinear equation of road resistance of taxing and loss resistance, the curvilinear equation of the load resistance of chassis dynamometer is obtained；According to load resistance and the real-time speed of standard vehicle, loading force is set；Standard vehicle is obtained under loading force, by the mileage travelled of a preset time period.The scheme that the embodiment of the present invention is provided, in such a way that standard vehicle replaces pre- exploitation vehicle to carry out object test, obtain the continual mileage of pre- exploitation vehicle, compared to simulation analysis, it operates simpler, the troublesome operation of structure model is avoided simultaneously, and idealization data are influenced caused by the accuracy of data so that the accuracy higher of obtained continual mileage.
Description
Technical field
The present invention relates to vehicle testing equipment technical field, more particularly to a kind of test method of vehicle continual mileage, bottom
Disk dynamometer machine and test system.
Background technology
With the raising that environmental protection is realized in the development and people of automotive engineering, new-energy automobile comes into being.
During the performance development of pure electric automobile, the continual mileage of pure electric automobile is an important performance standard, often in vehicle
Exploitation is just needed to have the continual mileage level for developing vehicle in advance and is more accurately estimated early period, and the work of this part at present is all
It is in simulation process, to build the process complexity of model by building model and being carried out by simulation analysis and idealizing
It is built under state, the accuracy between test result and the actual test result for the vehicle produced can be influenced.
Invention content
Technical problems to be solved of the embodiment of the present invention are to provide a kind of test method of vehicle continual mileage, Chassis dynamometer
Machine and test system, to solve currently to carry out the continual mileage of pre- exploitation vehicle by the method for building model and simulation analysis
Assessment builds the process complexity of model and the problem that test result accuracy is not high.
In order to solve the above technical problems, an embodiment of the present invention provides a kind of test method of vehicle continual mileage, application
In chassis dynamometer, including：
The road after loss resistance of the standard vehicle on chassis dynamometer, and pre- exploitation vehicle drag fitting is obtained to slide
Row resistance；
According to the curvilinear equation of the curvilinear equation of road resistance of taxing and loss resistance, the load resistance of chassis dynamometer is obtained
The curvilinear equation of power；
According to load resistance and the real-time speed of standard vehicle, loading force is set；
Standard vehicle is obtained under loading force, by the mileage travelled of a preset time period.
Specifically, the test method of vehicle continual mileage as described above, the curvilinear equation of road resistance of taxing are：
f1=a1v2+b1v+c1=fw+ff+fmotor+fgearbox+fdriveshaft+fbearing+fbrake+fpark
Wherein, a1、b1、c1For the coefficient of the curvilinear equation of road resistance of taxing；
V is real-time speed；
fwFor air drag；
ffResistance coefficient is rolled for tire；
fmotorFor motor resistance；
fgearboxFor retarder resistance；
fdriveshaftFor drive shaft resistance；
fbearingFor bearing resistance；
fbrakePower is dragged for brake；
fparkPower is dragged for parking brake.
Specifically, the test method of vehicle continual mileage as described above, the curvilinear equation for losing resistance are：
f2=a2v2+b2v+c2
Wherein, a2、b2、c2For the coefficient of the curvilinear equation of loss resistance；
V is real-time speed.
Specifically, the test method of vehicle continual mileage as described above, according to the curvilinear equation of road resistance of taxing with
The curvilinear equation of resistance is lost, the step of obtaining the curvilinear equation of the load resistance of chassis dynamometer includes：
The curvilinear equation of road resistance of taxing and the curvilinear equation of loss resistance are subtracted each other, the load of chassis dynamometer is obtained
The curvilinear equation of resistance.
The embodiments of the present invention also provide a kind of chassis dynamometers, including：
Acquisition module for obtaining loss resistance of the standard vehicle on chassis dynamometer, and develops vehicle drag in advance
Road resistance of taxing after fitting；
First processing module is used for the curvilinear equation of the curvilinear equation and loss resistance according to road resistance of taxing, obtains
The curvilinear equation of the load resistance of chassis dynamometer；
Loading force is arranged for the real-time speed according to load resistance and standard vehicle in Second processing module；
Logging modle, for obtaining standard vehicle under loading force, by the mileage travelled of a preset time period.
The embodiments of the present invention also provide a kind of test systems of vehicle continual mileage, including：Standard vehicle and such as
The upper chassis dynamometer；
The driving wheel of wherein standard vehicle is positioned on the roller of chassis dynamometer, and the driven wheel of standard vehicle and ground are solid
Fixed connection.
Specifically, the test system of vehicle continual mileage as described above further includes：Power analyzer and data acquisition are set
Standby, power analyzer is connect by data acquisition equipment with standard vehicle, and the data for obtaining each component in standard vehicle are believed
Breath, and the battery discharge capacity of standard vehicle is obtained according to data information, data information includes：Torque, rotating speed, voltage and electricity
Stream.
Specifically, the test system of vehicle continual mileage as described above further includes：Data processing system, wherein data
Processing system is connect with power analyzer by data harness, the data information got for receiving power analyzer, and root
The operation conditions of standard vehicle is obtained according to data information.
Preferably, the test system of vehicle continual mileage as described above further includes：Environmental chamber, chassis dynamometer and
Standard vehicle may be contained within the inside of environmental chamber.
Specifically, the test system of vehicle continual mileage as described above further includes：Weather station, weather station are set to ring
The inside in border cabin, for obtaining or adjusting temperature, humidity and/or atmospheric pressure when experiment.
Compared with prior art, the test method of vehicle continual mileage provided in an embodiment of the present invention, chassis dynamometer and
Test system, at least has the advantages that：
The test method for the vehicle continual mileage that the embodiment of the present invention is provided, in vehicle development early period, by standard vehicle
It is placed on chassis dynamometer, and is slided according to the road after the loss resistance of standard vehicle and pre- exploitation vehicle drag fitting
Resistance obtains the load resistance on chassis dynamometer of standard vehicle, and the load according to load resistance to chassis dynamometer
Power is set so that standard vehicle is enterprising in chassis dynamometer with pre- exploitation vehicle when being tested on chassis dynamometer
The case where going when testing is identical, and then standard vehicle is made to replace continual mileage of the pre- exploitation vehicle completion on chassis dynamometer
Test.The continual mileage of pre- exploitation vehicle, phase are obtained in such a way that standard vehicle replaces pre- exploitation vehicle to carry out object test
Compared with existing by way of structure model and by simulation analysis, operation is simpler, closer to actual conditions, simultaneously
The troublesome operation for avoiding structure model avoids simulation analysis using idealization data shadow caused by the accuracy of data
It rings so that the accuracy higher of obtained continual mileage.
Description of the drawings
Fig. 1 is the flow diagram of the test method of vehicle continual mileage in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of chassis dynamometer in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the test system of vehicle continual mileage in the embodiment of the present invention.
【Reference sign】
1, chassis dynamometer；201, driving wheel；202, driven wheel；3, power analyzer；
4, data acquisition equipment；5, data processing system.
Specific implementation mode
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.In the following description, such as specific configuration is provided and the specific detail of component is only
In order to help comprehensive understanding the embodiment of the present invention.It therefore, it will be apparent to those skilled in the art that can be to reality described herein
Example is applied to make various changes and modifications without departing from scope and spirit of the present invention.In addition, for clarity and brevity, it is omitted pair
The description of known function and construction.
It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is related with embodiment
A particular feature, structure, or characteristic includes at least one embodiment of the present invention.Therefore, occur everywhere in the whole instruction
" in one embodiment " or " in one embodiment " not necessarily refer to identical embodiment.In addition, these specific feature, knots
Structure or characteristic can in any suitable manner combine in one or more embodiments.
In various embodiments of the present invention, it should be appreciated that the size of the serial number of following each processes is not meant to execute suitable
The execution sequence of the priority of sequence, each process should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention
Process constitutes any restriction.
It should be understood that the terms "and/or", only a kind of incidence relation of description affiliated partner, expression can deposit
In three kinds of relationships, for example, A and/or B, can indicate：Individualism A exists simultaneously A and B, these three situations of individualism B.
In addition, character "/" herein, it is a kind of relationship of "or" to typically represent forward-backward correlation object.
In embodiment provided herein, it should be appreciated that " B corresponding with A " indicates that B is associated with A, can be with according to A
Determine B.It is also to be understood that determine that B is not meant to determine B only according to A according to A, it can also be according to A and/or other information
Determine B.
Referring to Fig. 1, the embodiment provides a kind of test methods of vehicle continual mileage, are applied to Chassis dynamometer
Machine, including：
Step 1001, loss resistance of the standard vehicle on chassis dynamometer, and pre- exploitation vehicle drag fitting are obtained
Road resistance of taxing afterwards；
Step 1002, according to the curvilinear equation of the curvilinear equation of road resistance of taxing and loss resistance, Chassis dynamometer is obtained
The curvilinear equation of the load resistance of machine；
Step 1003, according to load resistance and the real-time speed of standard vehicle, loading force is set；
Step 1004, standard vehicle is obtained under loading force, by the mileage travelled of a preset time period.
In an embodiment of the present invention, in vehicle development early period, standard vehicle is placed on chassis dynamometer, and according to
Road resistance of taxing after the loss resistance of standard vehicle and pre- exploitation vehicle drag fitting, obtains being surveyed on chassis for standard vehicle
Load resistance on work(machine, and the loading force of chassis dynamometer is set according to load resistance so that standard vehicle is the bottom of at
It is identical as the case where exploitation vehicle on chassis dynamometer when being tested in advance when being tested on disk dynamometer machine, and then make mark
Quasi- vehicle replaces pre- exploitation vehicle, completes the test of the continual mileage on chassis dynamometer.It replaces opening in advance using standard vehicle
It dispatches a car and to carry out a mode for object test, the continual mileage of pre- exploitation vehicle is obtained, compared to existing by building model simultaneously
By way of simulation analysis, operation is simpler, closer to actual conditions, while avoiding the cumbersome behaviour of structure model
Make, avoiding simulation analysis is influenced using idealization data caused by the accuracy of continual mileage so that in obtained driving
The accuracy higher of journey.
Specifically, the test method of vehicle continual mileage as described above, the curvilinear equation of road resistance of taxing are：
f1=a1v2+b1v+c1=fw+ff+fmotor+fgearbox+fdriveshaft+fbearing+fbrake+fpark
Wherein, a1、b1、c1For the coefficient of the curvilinear equation of road resistance of taxing；
V is real-time speed；
fwFor air drag；
ffResistance coefficient is rolled for tire；
fmotorFor motor resistance；
fgearboxFor retarder resistance；
fdriveshaftFor drive shaft resistance；
fbearingFor bearing resistance；
fbrakePower is dragged for brake；
fparkPower is dragged for parking brake.
In an embodiment of the present invention, in advance the curvilinear equation of the road resistance of taxing of exploitation vehicle by by the air of vehicle
Resistance, tire rolling resistance coefficient, motor resistance, retarder resistance, drive shaft resistance, bearing resistance, brake drag power and
Parking brake drags power and is fitted, wherein the curvilinear equation of each section resistance can be by corresponding selected by vehicle to developing in advance
Parts carry out test acquisition so that the road resistance of taxing of pre- exploitation vehicle can realize by being fitted, compared to passing through
The mode for establishing model progress simulation analysis is more nearly reality, the accuracy higher of finally obtained continual mileage.
Specifically, the test method of vehicle continual mileage as described above, the curvilinear equation for losing resistance are：
f2=a2v2+b2v+c2
Wherein, a2、b2、c2For the coefficient of the curvilinear equation of loss resistance；
V is real-time speed.
In an embodiment of the present invention, the curvilinear equation of loss resistance of the standard vehicle on chassis dynamometer, passes through mark
Quasi- vehicle carries out measuring for the mode of actual test, can be apparent from the loss resistance of standard vehicle and standard vehicle is had a try vehicle
Relationship between speed, the test to carry out next step provides data and supports, while by way of actual test loss is hindered
The accuracy higher of power is conducive to the accuracy for improving finally obtained continual mileage.
Specifically, the test method of vehicle continual mileage as described above, according to the curvilinear equation of road resistance of taxing with
The curvilinear equation of resistance is lost, the step of obtaining the curvilinear equation of the load resistance of chassis dynamometer includes：
The curvilinear equation of road resistance of taxing and the curvilinear equation of loss resistance are subtracted each other, the load of chassis dynamometer is obtained
The curvilinear equation of resistance.For example, the curvilinear equation of the load resistance of chassis dynamometer is f1-f2, when specific implementation, road is slided
The curvilinear equation of row resistance subtracts the curvilinear equation of loss resistance, i.e.,：
f1-f2=(a1-a2)v2+(b1-b2)+(c1-c2)
And then obtain the curvilinear equation of the load resistance of chassis dynamometer.
In an embodiment of the present invention, the road resistance of taxing by developing vehicle in advance of the load resistance of chassis dynamometer
Subtract each other to obtain with the loss resistance of standard vehicle, that is, loads resistance and subtract loss resistance equal to road resistance of taxing so that chassis
Loading force is arranged according to load resistance in dynamometer machine so that for standard vehicle when being tested on chassis dynamometer, standard vehicle is certainly
The sum of the loss resistance of body and the load resistance of chassis dynamometer are equal to the taxiway resistance of pre- exploitation vehicle so that on chassis
Driving condition of the vehicle on real road is developed in simulation in advance completely on dynamometer machine, to obtain in the driving of pre- exploitation vehicle
Journey is conducive to the accuracy for improving continual mileage so that in driving compared to the form for carrying out simulation analysis by establishing model
Journey is closer to the actual continual mileage after pre- exploitation vehicle production.
Referring to Fig. 2, another preferred embodiment of the invention additionally provides a kind of chassis dynamometer, including：
Acquisition module for obtaining loss resistance of the standard vehicle on chassis dynamometer, and develops vehicle drag in advance
Road resistance of taxing after fitting；
First processing module is used for the curvilinear equation of the curvilinear equation and loss resistance according to road resistance of taxing, obtains
The curvilinear equation of the load resistance of chassis dynamometer；
Loading force is arranged for the real-time speed according to load resistance and standard vehicle in Second processing module；
Logging modle, for obtaining standard vehicle under loading force, by the mileage travelled of a preset time period.
The device of the invention embodiment is device corresponding with the embodiment of the above method, the institute in above method embodiment
There is realization rate suitable for the embodiment of the device, can also reach identical technique effect.
Referring to Fig. 3, another preferred embodiment of the invention additionally provides a kind of test system of vehicle continual mileage, packet
It includes：Standard vehicle and chassis dynamometer as described above 1；
The driving wheel 201 of wherein standard vehicle is positioned on the roller of chassis dynamometer 1, the driven wheel 202 of standard vehicle
It is fixedly connected with the ground.
In an embodiment of the present invention, the test system of vehicle continual mileage includes standard vehicle and chassis dynamometer 1,
The driving wheel 201 of Plays vehicle is positioned on the roller of chassis dynamometer 1, when performing a test, is carried out to chassis dynamometer 1
Loading force is preheated and be arranged, starts standard vehicle, the driving wheel 201 of standard vehicle is made to be simulated on real road on roller
Traveling, when test stop when, by the display device on chassis dynamometer 1 intuitively obtain standard vehicle test phase row
Mileage is sailed, as develops the continual mileage of vehicle in advance so that development teams can be obtained simply in the case of no sample car
The continual mileage of pre- exploitation vehicle improves the performance of pre- exploitation vehicle convenient for accordingly being improved developing vehicle in advance.
The driven wheel 202 of standard vehicle is fixedly connected with the ground so that standard vehicle is integrally fastened to ground, only drive
Wheel 201 can be rotated on roller so that standard vehicle can obtain on real road in the test environment in laboratory
Form situation.
Specifically, the test system of vehicle continual mileage as described above further includes：Power analyzer 3 and data acquisition are set
Standby 4, power analyzer 3 is connect by data acquisition equipment 4 with standard vehicle, the data for obtaining each component in standard vehicle
Information, and the battery discharge capacity of standard vehicle is obtained according to data information, data information includes：Torque, rotating speed, voltage and electricity
Stream.
In an embodiment of the present invention, the test system of vehicle continual mileage further includes：Power analyzer 3 and data acquisition
Equipment 4, the connection of data acquisition equipment 4 and standard vehicle, for obtaining standard vehicle each portion when being run on chassis dynamometer 1
The data information of part, and by the data information transfer of acquisition to power analyzer 3, power analyzer 3 is according to data equipment in sight
The battery discharge capacity of standard vehicle is obtained in electric current, the information of voltage of battery outlet port acquisition, convenient for staff according to standard vehicle
Battery discharge capacity determine test end time.The data information that data acquisition equipment 4 is acquired includes mainly standard vehicle
Torque, rotating speed, voltage and the electric current of main parts size on, main parts size include battery, motor, retarder, high pressure consumption
It can element, low pressure dissipative cell and semiaxis.It is convenient for subsequently to standard vehicle in test by data information more than acquisition
Operation conditions is assessed, and determines the validity of detected continual mileage.
Specifically, the test system of vehicle continual mileage as described above further includes：Data processing system 5, wherein data
Processing system 5 is connect with power analyzer 3 by data harness, the data information got for receiving power analyzer 3, and
The operation conditions of standard vehicle is obtained according to data information.
In an embodiment of the present invention, data processing system 5 obtains power point by data harness and power analyzer 3
Data information acquired in analyzer 3, and data information is analyzed, is handled, whether criterion vehicle is located in test phase
In normal operating phase, if by judging, standard vehicle is extremely not in the normally travel stage in test, then this test gained
The continual mileage arrived is invalid, cannot function as the data reference during the subsequent development of pre- exploitation vehicle, is conducive to developer
The data of accurate continual mileage are obtained, subsequent research and development are convenient for.
Preferably, the test system of vehicle continual mileage as described above further includes：Environmental chamber, chassis dynamometer 1 and
Standard vehicle may be contained within the inside of environmental chamber.
In an embodiment of the present invention, test system includes：Chassis dynamometer 1 and standard vehicle are set to by environmental chamber
Test experiments are carried out inside environmental chamber, advantageously reduce outside environmental elements influences caused by test experiments, ensures test
The validity of data.
Specifically, the test system of vehicle continual mileage as described above further includes：Weather station, weather station are set to ring
The inside in border cabin, for obtaining or adjusting temperature, humidity and/or atmospheric pressure when experiment.
In an embodiment of the present invention, it is additionally provided with weather station inside environmental chamber, by weather station to environmental chamber inner loop
Border factor is detected or adjusts, and wherein environmental factor includes temperature, humidity and/or atmospheric pressure, and then ensures standard vehicle
Environmental factor when carrying out test experiments is that developer carries out testing required environment, ensures the number that test experiments obtain
According to accuracy and validity.
In addition, the present invention can in different examples repeat reference numerals and/or letter.This repetition be in order to simplify and
Clear purpose itself does not indicate the relationship between discussed various embodiments and/or setting.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of test method of vehicle continual mileage is applied to chassis dynamometer, which is characterized in that including：
The road after loss resistance of the standard vehicle on the chassis dynamometer, and pre- exploitation vehicle drag fitting is obtained to slide
Row resistance；
According to the curvilinear equation of the curvilinear equation of the road resistance of taxing and the loss resistance, the chassis dynamometer is obtained
Load resistance curvilinear equation；
According to the load resistance and the real-time speed of the standard vehicle, loading force is set；
Standard vehicle is obtained under the loading force, by the mileage travelled of a preset time period.
2. the test method of vehicle continual mileage according to claim 1, which is characterized in that the road resistance of taxing
Curvilinear equation is：
f1=a1v2+b1v+c1=fw+ff+fmotor+fgearbox+fdriveshaft+fbearing+fbrake+fpark
Wherein, a1、b1、c1For the coefficient of the curvilinear equation of the road resistance of taxing；
V is real-time speed；
fwFor air drag；
ffResistance coefficient is rolled for tire；
fmotorFor motor resistance；
fgearboxFor retarder resistance；
fdriveshaftFor drive shaft resistance；
fbearingFor bearing resistance；
fbrakePower is dragged for brake；
fparkPower is dragged for parking brake.
3. the test method of vehicle continual mileage according to claim 1, which is characterized in that the curve of the loss resistance
Equation is：
f2=a2v2+b2v+c2
Wherein, a2、b2、c2For the coefficient of the curvilinear equation of the loss resistance；
V is real-time speed.
4. the test method of vehicle continual mileage according to claim 1, which is characterized in that slide resistance according to the road
The curvilinear equation of the curvilinear equation of power and the loss resistance obtains the curvilinear equation of the load resistance of the chassis dynamometer
Step includes：
The curvilinear equation of the road resistance of taxing and the curvilinear equation of the loss resistance are subtracted each other, the Chassis dynamometer is obtained
The curvilinear equation of the load resistance of machine.
5. a kind of chassis dynamometer, which is characterized in that including：
Acquisition module for obtaining loss resistance of the standard vehicle on the chassis dynamometer, and develops vehicle drag in advance
Road resistance of taxing after fitting；
First processing module is used for the curvilinear equation of the curvilinear equation and the loss resistance according to the road resistance of taxing,
Obtain the curvilinear equation of the load resistance of the chassis dynamometer；
Loading force is arranged for the real-time speed according to the load resistance and standard vehicle in Second processing module；
Logging modle, for obtaining standard vehicle under the loading force, by the mileage travelled of a preset time period.
6. a kind of test system of vehicle continual mileage, which is characterized in that including：Standard vehicle and as claimed in claim 5
Chassis dynamometer (1)；
The driving wheel (201) of the wherein described standard vehicle is positioned on the roller of the chassis dynamometer (1), the standard vehicle
Driven wheel (202) be fixedly connected with the ground.
7. the test system of vehicle continual mileage according to claim 6, which is characterized in that further include：Power analyzer (3)
With data acquisition equipment (4), the power analyzer (3) is connect by the data acquisition equipment (4) with the standard vehicle,
Data information for obtaining each component in the standard vehicle, and the electricity of the standard vehicle is obtained according to the data information
Tank discharge amount, the data information include：Torque, rotating speed, voltage and electric current.
8. the test system of vehicle continual mileage according to claim 7, which is characterized in that further include：Data processing system
It unites (5), wherein the data processing system (5) is connect with the power analyzer (3) by data harness, for receiving power
The data information that analyzer (3) is got, and the operation conditions of the standard vehicle is obtained according to the data information.
9. the test system of vehicle continual mileage according to claim 7, which is characterized in that further include：Environmental chamber, it is described
Chassis dynamometer (1) and the standard vehicle may be contained within the inside of the environmental chamber.
10. the test system of vehicle continual mileage according to claim 9, which is characterized in that further include：Weather station, institute
The inside that weather station is set to the environmental chamber is stated, for obtaining or adjusting temperature, humidity and/or atmospheric pressure when experiment
Power.
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| CN113776852A (en) * | 2021-09-10 | 2021-12-10 | 中国第一汽车股份有限公司 | Method for testing driving range and power consumption of pure electric vehicle |
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