CN105890914B - Electric car course continuation mileage test method and device - Google Patents
Electric car course continuation mileage test method and device Download PDFInfo
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- CN105890914B CN105890914B CN201610483412.4A CN201610483412A CN105890914B CN 105890914 B CN105890914 B CN 105890914B CN 201610483412 A CN201610483412 A CN 201610483412A CN 105890914 B CN105890914 B CN 105890914B
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- course continuation
- continuation mileage
- kerb weight
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Abstract
The application proposes a kind of electric car course continuation mileage test method and device, wherein this method comprises: obtaining tested vehicle the first road running resistance corresponding with the first kerb weight；First loading force of chassis dynamometer is set according to the first road running resistance, and tests the first course continuation mileage corresponding with the first kerb weight；Obtain tested vehicle the second road running resistance corresponding with the second kerb weight；Second loading force of chassis dynamometer is set according to the second road running resistance, and tests the second course continuation mileage corresponding with the second kerb weight；Influence coefficient of the kerb weight of tested vehicle to course continuation mileage is determined according to the first course continuation mileage and the second course continuation mileage.This application embodiment, by adjusting the loading force of chassis dynamometer, the convenient influence for accurately testing different kerb weights to course continuation mileage of realization is highly-safe.
Description
Technical field
This application involves automobile technical field more particularly to a kind of electric car course continuation mileage test method and devices.
Background technique
Currently, the pure electric automobile kerb weight of same level is higher than traditional combustion mostly due to the technical restriction of power battery
Petrol car.
However, kerb weight influences the course continuation mileage of pure electric automobile, reducing kerb weight becomes promotion course continuation mileage
A kind of important measure.Therefore, the test method influenced after a kind of complete vehicle quality mitigation of electric car on course continuation mileage is needed.
Summary of the invention
The application is intended to solve one of the technical problem in above-mentioned technology at least to a certain extent.
For this purpose, first purpose of the application is to propose that a kind of electric car course continuation mileage test method, this method are logical
The loading force of chassis dynamometer is overregulated, realizes the convenient influence for accurately testing different kerb weights to course continuation mileage, safety
Property it is high.
Second purpose of the application is to propose a kind of electric car course continuation mileage test device.
In order to achieve the above object, the application first aspect embodiment proposes a kind of electric car course continuation mileage test method,
It include: to obtain tested vehicle the first road running resistance corresponding with the first kerb weight；It is hindered according to first road driving
The first loading force of chassis dynamometer is arranged in power, and tests the first course continuation mileage corresponding with first kerb weight；It obtains
Tested vehicle the second road running resistance corresponding with the second kerb weight；According to second road running resistance, chassis is set
Second loading force of dynamometer machine, and test the second course continuation mileage corresponding with second kerb weight；It is continuous according to described first
Boat mileage and second course continuation mileage determine influence coefficient of the kerb weight of the tested vehicle to course continuation mileage.
The electric car course continuation mileage test method of the embodiment of the present application obtains measured vehicle and first first and reorganizes and outfit matter
Corresponding first road running resistance is measured, the first loading force of chassis dynamometer is set then according to the first road running resistance,
And corresponding with the first kerb weight the first course continuation mileage is tested, then obtain measured vehicle corresponding with the second kerb weight the
Two road running resistances then according to the second loading force of the second road running resistance setting chassis dynamometer, and are tested and the
Corresponding second course continuation mileage of two kerb weights.Tested vehicle is finally determined according to the first course continuation mileage and the second course continuation mileage
Influence coefficient of the kerb weight to course continuation mileage.This method is realized convenient accurate by the loading force of adjusting chassis dynamometer
Influence of the different kerb weights to course continuation mileage is tested, it is highly-safe.
In addition, can also be had according to the electric car course continuation mileage test method of the above embodiments of the present application following additional
Technical characteristic:
In some instances, the acquisition tested vehicle the first road running resistance corresponding with the first kerb weight, packet
It includes: obtaining test parameter, wherein the test parameter includes: coefficient of rolling resistance, air resistance coefficient, front face area and described
The speed of tested vehicle；Calculation processing is carried out to first kerb weight and the test parameter using preset formula, is obtained
First road running resistance.
In some instances, the acquisition tested vehicle the second road running resistance corresponding with the second kerb weight, packet
It includes: calculation processing being carried out to second kerb weight and the test parameter using preset formula, obtains second road
Running resistance.
In some instances, the preset formula includes:
Wherein, f0For coefficient of rolling resistance constant, f1For rolling resistance coefficient of first order, m is kerb weight, and v is the speed of tested vehicle, g
For acceleration of gravity, CdFor air resistance coefficient, A is front face area.
In some instances, in first loading force that chassis dynamometer is arranged according to first road running resistance
Before, further includes: environmental chamber temperature is adjusted according to testing requirement.
In order to achieve the above object, the application second aspect embodiment proposes a kind of electric car course continuation mileage test device,
It include: acquisition module, for obtaining tested vehicle the first road running resistance corresponding with the first kerb weight；Processing module,
For the first loading force of chassis dynamometer to be arranged according to first road running resistance, and tests and reorganize and outfit matter with described first
Measure corresponding first course continuation mileage；The acquisition module is also used to obtain tested vehicle corresponding with the second kerb weight second
Road running resistance；The processing module is also used to be arranged the second of chassis dynamometer according to second road running resistance
Loading force, and test the second course continuation mileage corresponding with second kerb weight；Determining module, for continuous according to described first
Boat mileage and second course continuation mileage determine influence coefficient of the kerb weight of the tested vehicle to course continuation mileage.
The electric car course continuation mileage test device of the embodiment of the present application, acquisition module, which obtains, first is measured vehicle and the
Corresponding first road running resistance of one kerb weight, then Chassis dynamometer is arranged according to the first road running resistance in processing module
First loading force of machine, and the first course continuation mileage corresponding with the first kerb weight is tested, it obtains module and obtains measured vehicle again
The second road running resistance corresponding with the second kerb weight, then bottom is arranged according to the second road running resistance in processing module
Second loading force of disk dynamometer machine, and test the second course continuation mileage corresponding with the second kerb weight.Last determining module according to
First course continuation mileage and the second course continuation mileage determine influence coefficient of the kerb weight of tested vehicle to course continuation mileage.The device is logical
The loading force of chassis dynamometer is overregulated, realizes the convenient influence for accurately testing different kerb weights to course continuation mileage, safety
Property it is high.
In addition, can also be had according to the electric car course continuation mileage test device of the above embodiments of the present application following additional
Technical characteristic:
In some instances, the acquisition module is specifically used for: obtaining test parameter, wherein the test parameter includes:
The speed of coefficient of rolling resistance, air resistance coefficient, front face area and the tested vehicle；Using preset formula to described first
Kerb weight and the test parameter carry out calculation processing, obtain first road running resistance.
In some instances, the acquisition module is specifically also used to: using preset formula to second kerb weight and
The test parameter carries out calculation processing, obtains second road running resistance.
In some instances, the preset formula includes:
Wherein, f0For coefficient of rolling resistance constant, f1For rolling resistance coefficient of first order, m is kerb weight, and v is the speed of tested vehicle, g
For acceleration of gravity, CdFor air resistance coefficient, A is front face area.
In some instances, the device, further includes: setup module, for adjusting environmental chamber temperature according to testing requirement
Degree.
The additional aspect of the application and advantage will be set forth in part in the description, and will partially become from the following description
It obtains obviously, or recognized by the practice of the application.
Detailed description of the invention
The application is above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is the flow chart of the electric car course continuation mileage test method of the application one embodiment；
Fig. 2 is the flow chart of the electric car course continuation mileage test method of the application another embodiment；
Fig. 3 is the structural schematic diagram of the electric car course continuation mileage test device of the application one embodiment；And
Fig. 4 is the structural schematic diagram of the electric car course continuation mileage test device of the application another embodiment.
Specific embodiment
Embodiments herein is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the application, and should not be understood as the limitation to the application.
Below with reference to the accompanying drawings the electric car course continuation mileage test method and device of the embodiment of the present application are described.
Fig. 1 is the flow chart of the electric car course continuation mileage test method of the application one embodiment.
As shown in Figure 1, the electric car course continuation mileage test method includes:
Step 101, tested vehicle the first road running resistance corresponding with the first kerb weight is obtained.
Step 102, the first loading force of chassis dynamometer, and test and institute are set according to first road running resistance
State corresponding first course continuation mileage of the first kerb weight.
Specifically, since the pure electric automobile kerb weight of current same level is higher than orthodox car mostly, in order to quantitatively divide
The different kerb weight of electric car is analysed to the influence degree of continual mileage, this application provides a kind of electric car course continuation mileages
Test method influences continual mileage to obtain electric car kerb weight according to test result, is the improvement of electric car
Reliable reference frame is provided.
In order to test influence of variation of the electric car with kerb weight to course continuation mileage, preset multiple and different
Kerb weight is tested, and the present embodiment tests different kerb weights by taking the first kerb weight and the second kerb weight as an example
Influence to course continuation mileage.In practical applications, it is tested in order to more fine-grained, more kerb weights can be passed through
Progress test and comparison, description of the specific implementation process referring to the present embodiment to the first kerb weight and the second kerb weight, herein
It repeats no more.
Firstly, determining the first kerb weight of tested electric car.Wherein, it should be noted that can be according to reality
Using electric car loading condition is needed to configure, corresponding first kerb weight is set, such as: semi-load are configured by electric car
State, alternatively, full load condition etc..
Then, tested vehicle the first road running resistance corresponding with the first kerb weight is obtained.It should be noted that can
To be needed to obtain the first road running resistance corresponding with the first kerb weight, example using various ways according to practical situations
Such as:
Example one inquires the correspondence application parameter of preset different pavement behavior and different kerb weights, according to application
Parameter obtains the first road running resistance corresponding with the first kerb weight；
Example two obtains test parameter according to preset running resistance calculation formula, is obtained and first according to test parameter
Corresponding first road running resistance of kerb weight.
Specifically, electric car on road when driving, external drag by rolling resistance of wheel, wheel bearing friction
Caused by effect with air, and electric car, when operating on chassis dynamometer, external drag is the rolling of driving wheel
Resistance, bearing friction and windage and the bearing friction of revolution component etc., these resistance ratios are suffered when driving on road
External drag it is much smaller, in addition, there is no electric cars on chassis dynamometer air resistance suffered when driving on road
Power and grade resistance.
Therefore, it in order to keep stress condition of the electric car on chassis dynamometer essentially the same on road with traveling, needs
First loading force of chassis dynamometer is set according to the first road running resistance, and test obtain the first kerb weight corresponding the
One course continuation mileage.
Step 103, tested vehicle the second road running resistance corresponding with the second kerb weight is obtained.
Step 104, the second loading force of chassis dynamometer, and test and institute are set according to second road running resistance
State corresponding second course continuation mileage of the second kerb weight.
With reference to the implementation process of above-mentioned steps 101 and step 102, the second kerb weight corresponding of electric car is tested
Two course continuation mileages.
Firstly, determining the second kerb weight of tested electric car, wherein it should be noted that the second kerb weight
It is different from the first kerb weight, electric car loading condition setting corresponding second can be configured according to the actual application reorganizes and outfit
Quality, such as: light condition is configured by electric car, alternatively, half cargo condition etc..
Tested vehicle the second road corresponding with the second kerb weight is obtained referring next to the implementation process of above-mentioned steps 101
Running resistance.It should be noted that since the second kerb weight is different from the first kerb weight, corresponding second road
Running resistance is different from the first road running resistance.
Therefore, it in order to keep stress condition of the electric car on chassis dynamometer essentially the same on road with traveling, needs
Second loading force of chassis dynamometer is set according to the second road running resistance, and then test obtains the second kerb weight and corresponds to
The second course continuation mileage.
Step 105, determine the kerb weight of tested vehicle in continuation of the journey according to the first course continuation mileage and the second course continuation mileage
The influence coefficient of journey.
Specifically, by comparing the course continuation mileage obtained under different kerb weights, kerb weight variation is obtained in continuation of the journey
The influence of journey.It should be noted that can according to the actual application using different calculations to the first course continuation mileage and
Second course continuation mileage is calculated, and determines influence coefficient of the kerb weight of tested vehicle to course continuation mileage.It is illustrated below:
Assuming that the first course continuation mileage 100KM, the second course continuation mileage 120KM, wherein the second kerb weight is 10KG fewer than the first kerb weight,
Example one obtains 1.2 value as reducing influence coefficient bits 1.2 of the 10KG to course continuation mileage by 120/100.
Example two obtains 0.2 value as reducing influence coefficient bits of the 10KG to course continuation mileage by (120-100)/100
0.2。
In conclusion the electric car course continuation mileage test method of the embodiment of the present application, obtain being measured first vehicle with
Corresponding first road running resistance of first kerb weight, then according to the of the first road running resistance setting chassis dynamometer
One loading force, and the first course continuation mileage corresponding with the first kerb weight is tested, then obtain measured vehicle and second and reorganize and outfit matter
Corresponding second road running resistance is measured, the second loading force of chassis dynamometer is set then according to the second road running resistance,
And test the second course continuation mileage corresponding with the second kerb weight.Finally determined according to the first course continuation mileage and the second course continuation mileage
Influence coefficient of the kerb weight of tested vehicle to course continuation mileage.This method is realized by the loading force of adjusting chassis dynamometer
The convenient influence for accurately testing different kerb weights to course continuation mileage, it is highly-safe.
In order to more clearly illustrate above-mentioned implementation process, in conjunction with Fig. 2 to obtain road running resistance by preset formula
For be described as follows:
Fig. 2 is the flow chart of the electric car course continuation mileage test of the application another embodiment.
As illustrated in fig. 2, it is assumed that the first kerb weight in the present embodiment corresponds to the half cargo condition of electric car, first is reorganized and outfit
Quality is M1；Second kerb weight corresponds to the light condition of electric car, and the second kerb weight is M2, in electric car continuation of the journey
Journey test method includes:
Step 201, test parameter is obtained, wherein test parameter includes: coefficient of rolling resistance, air resistance coefficient and windward
The speed of area and tested vehicle.
Step 202, calculation processing is carried out to the first kerb weight and test parameter using preset formula, obtains the first road
Running resistance.
Specifically, preset test parameter include coefficient of rolling resistance, air resistance coefficient, front face area, with
And tested vehicle four kinds of parameters of speed when, using the first kerb weight of preset formula carry out calculation processing beWherein, f0For coefficient of rolling resistance constant, f1To roll resistance
Power coefficient of first order, m1For the first kerb weight, v is the speed of tested vehicle, and g is acceleration of gravity, CdFor air resistance coefficient, A is to meet
Wind area.Obtain the first road running resistance.
Step 203, environmental chamber temperature is adjusted according to testing requirement.
Wherein, air drag and environmental condition close association, accuracy in order to ensure the test results are needed according to test
Demand adjusts environmental chamber temperature.The temperature range of general test demand, control errors it is positive and negative once.
Step 204, the first loading force of chassis dynamometer is set according to the first road running resistance, and is tested and first whole
Standby corresponding first course continuation mileage of quality.
In order to keep stress condition of the electric car on chassis dynamometer essentially the same on road with traveling, basis is needed
The corresponding first road running resistance setting chassis dynamometer of first kerb weight of the tested vehicle under the first test mode
First loading force, and then test and obtain corresponding first course continuation mileage of the first kerb weight.
Step 205, calculation processing is carried out to the second kerb weight and test parameter using preset formula, obtains the second road
Running resistance.
Specifically, preset test parameter include coefficient of rolling resistance, air resistance coefficient, front face area and
When four kinds of parameters of speed of tested vehicle, carrying out calculation processing using the second kerb weight of preset formula isWherein, f0For coefficient of rolling resistance constant, f1To roll
Resistance coefficient of first order, m2For the second kerb weight, v is the speed of tested vehicle, and g is acceleration of gravity, CdFor air resistance coefficient, A is
Front face area.Obtain the second road running resistance.
According to step 202, using default test parameter, the second kerb weight and test parameter are carried out using preset formula
Calculation processing obtains the second road running resistance.
Step 206, the second loading force of chassis dynamometer is set according to the second road running resistance, and is tested and second whole
Standby corresponding second course continuation mileage of quality.
Specifically, in order to keep stress condition of the electric car on chassis dynamometer essentially the same on road with traveling,
Need the corresponding second road running resistance setting of the second kerb weight according to tested vehicle under the second test mode chassis
Second loading force of dynamometer machine, and then test and obtain corresponding second course continuation mileage of the second kerb weight.
Step 207, determine the kerb weight of tested vehicle in continuation of the journey according to the first course continuation mileage and the second course continuation mileage
The influence coefficient of journey.
Specifically, by comparing the course continuation mileage obtained under different kerb weights, kerb weight variation is obtained in continuation of the journey
The influence of journey, referring specifically to step 105, and will not be described here in detail.
In conclusion the electric car course continuation mileage test method of the embodiment of the present application, obtain being measured first vehicle with
Corresponding first road running resistance of first kerb weight, then according to the of the first road running resistance setting chassis dynamometer
One loading force, and the first course continuation mileage corresponding with the first kerb weight is tested, then obtain measured vehicle and second and reorganize and outfit matter
Corresponding second road running resistance is measured, the second loading force of chassis dynamometer is set then according to the second road running resistance,
And test the second course continuation mileage corresponding with the second kerb weight.Finally determined according to the first course continuation mileage and the second course continuation mileage
Influence coefficient of the kerb weight of tested vehicle to course continuation mileage.This method is realized by the loading force of adjusting chassis dynamometer
The convenient influence for accurately testing different kerb weights to course continuation mileage, it is highly-safe.
In order to realize above-described embodiment, the application also proposes a kind of electric car course continuation mileage test device.
Fig. 3 is the structural schematic diagram of the electric car course continuation mileage test device of the application one embodiment.
As shown in figure 3, the electric car course continuation mileage test device includes: to obtain module 10, processing module 20 and determine
Module 30.
Wherein, module 10 is obtained for obtaining tested vehicle the first road running resistance corresponding with the first kerb weight.
Processing module 20 be used for according to the first road running resistance be arranged chassis dynamometer the first loading force, and test with
Corresponding first course continuation mileage of first kerb weight.
Firstly, determining the first kerb weight of tested electric car.Wherein, it should be noted that can be according to reality
Using electric car loading condition is needed to configure, corresponding first kerb weight is set, such as: semi-load are configured by electric car
State, alternatively, full load condition etc..
Then, tested vehicle the first road running resistance corresponding with the first kerb weight is obtained.It should be noted that can
To be needed to obtain the first road running resistance corresponding with the first kerb weight using various ways according to practical situations.Ginseng
The implementation process of above-mentioned steps 101 and step 102 is examined, and will not be described here in detail.
It obtains module 10 and is also used to obtain tested vehicle the second road running resistance corresponding with the second kerb weight；
Processing module 20 is also used to be arranged according to the second road running resistance the second loading force of chassis dynamometer, and tests
The second course continuation mileage corresponding with the second kerb weight.
With reference to the implementation process of above-mentioned steps 101 and step 102, the second kerb weight corresponding of electric car is tested
Two course continuation mileages.And will not be described here in detail.
Determining module 30 is used to determine the kerb weight pair of tested vehicle according to the first course continuation mileage and the second course continuation mileage
The influence coefficient of course continuation mileage.
Specifically, by comparing the course continuation mileage obtained under different kerb weights, kerb weight variation is obtained in continuation of the journey
The influence of journey.It should be noted that can according to the actual application using different calculations to the first course continuation mileage and
Second course continuation mileage is calculated, and determines influence coefficient of the kerb weight of tested vehicle to course continuation mileage.With reference to above-mentioned steps
105 implementation process, and will not be described here in detail.
It should be noted that the aforementioned explanation to electric car course continuation mileage testing example is also applied for the implementation
The electric car course continuation mileage test device of example, details are not described herein again.
In conclusion the electric car course continuation mileage test device of the embodiment of the present application, first acquisition module obtain tested
Vehicle the first road running resistance corresponding with the first kerb weight is measured, then processing module is set according to the first road running resistance
The first loading force of chassis dynamometer is set, and tests the first course continuation mileage corresponding with the first kerb weight, module is obtained and obtains again
Measured vehicle the second road running resistance corresponding with the second kerb weight is taken, then processing module is according to the second road driving
The second loading force of chassis dynamometer is arranged in resistance, and tests the second course continuation mileage corresponding with the second kerb weight.It is last true
Cover half root tuber determines influence system of the kerb weight of tested vehicle to course continuation mileage according to the first course continuation mileage and the second course continuation mileage
Number.For the device by the loading force of adjusting chassis dynamometer, realization is convenient accurately to test different kerb weights to course continuation mileage
Influence, it is highly-safe.
In order to more clearly illustrate above-mentioned implementation process, in conjunction with Fig. 4 to obtain road running resistance by preset formula
For be described as follows:
Fig. 4 is the structural schematic diagram of the electric car course continuation mileage test device of the application another embodiment.
As shown in figure 4, being based on embodiment illustrated in fig. 3, described device further include: setup module 40.
Wherein, setup module 40 is used to adjust environmental chamber temperature according to testing requirement.
Wherein, air drag and environmental condition close association, accuracy in order to ensure the test results are needed according to test
Demand adjusts environmental chamber temperature.The temperature range of general test demand, control errors it is positive and negative once.
It obtains module 10 to be specifically used for: obtaining test parameter, wherein the test parameter includes: coefficient of rolling resistance, wind
Hinder the speed of coefficient, front face area and the tested vehicle；Using preset formula to the first kerb weight and test parameter into
Row calculation processing obtains first road running resistance.
Specifically, preset test parameter include coefficient of rolling resistance, air resistance coefficient, front face area, with
And tested vehicle four kinds of parameters of speed when, using the first kerb weight of preset formula carry out calculation processing beWherein, f0For coefficient of rolling resistance constant, f1To roll resistance
Power coefficient of first order, m1For the first kerb weight, v is the speed of tested vehicle, and g is acceleration of gravity, CdFor air resistance coefficient, A is to meet
Wind area.Obtain the first road running resistance.
It obtains module 10 to be specifically also used to: the second kerb weight and the test parameter being calculated using preset formula
Processing obtains the second road running resistance.
Specifically, preset test parameter include coefficient of rolling resistance, air resistance coefficient, front face area,
And tested vehicle four kinds of parameters of speed when, using the second kerb weight of preset formula carry out calculation processing beWherein, f0For coefficient of rolling resistance constant, f1To roll
Resistance coefficient of first order, m2For the second kerb weight, v is the speed of tested vehicle, and g is acceleration of gravity, CdFor air resistance coefficient, A is
Front face area.Obtain the second road running resistance.
It should be noted that the aforementioned explanation to electric car course continuation mileage testing example is also applied for the implementation
The electric car course continuation mileage test device of example, details are not described herein again.
In conclusion the electric car course continuation mileage test device of the embodiment of the present application, first acquisition module obtain tested
Vehicle the first road running resistance corresponding with the first kerb weight is measured, then processing module is set according to the first road running resistance
The first loading force of chassis dynamometer is set, and tests the first course continuation mileage corresponding with the first kerb weight, module is obtained and obtains again
Measured vehicle the second road running resistance corresponding with the second kerb weight is taken, then processing module is according to the second road driving
The second loading force of chassis dynamometer is arranged in resistance, and tests the second course continuation mileage corresponding with the second kerb weight.It is last true
Cover half root tuber determines influence system of the kerb weight of tested vehicle to course continuation mileage according to the first course continuation mileage and the second course continuation mileage
Number.For the device by the loading force of adjusting chassis dynamometer, realization is convenient accurately to test different kerb weights to course continuation mileage
Influence, it is highly-safe.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the application.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present application, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the application includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be by the application
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system, including the system of processor or other can be held from instruction
The instruction fetch of row system, device or equipment and the system executed instruction) it uses, or combine these instruction execution systems, device or set
It is standby and use.
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
Although embodiments herein has been shown and described above, it is to be understood that above-described embodiment is example
Property, it should not be understood as the limitation to the application, those skilled in the art within the scope of application can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of electric car course continuation mileage test method, which comprises the following steps:
Obtain tested vehicle the first road running resistance corresponding with the first kerb weight；
First loading force of chassis dynamometer is set according to first road running resistance, so that the electric car after setting
Stress condition on chassis dynamometer is consistent with stress condition of the electric automobile during traveling on road, and test with
Corresponding first course continuation mileage of first kerb weight；
Obtain tested vehicle the second road running resistance corresponding with the second kerb weight, wherein divide according to the actual application
Not Pei Zhi electric car loading condition corresponding first kerb weight and the second kerb weight are set, the electric car
Loading condition includes light condition, half cargo condition or full load condition；
Second loading force of chassis dynamometer is set according to second road running resistance, so that the electric car after setting
Stress condition on chassis dynamometer is consistent with stress condition of the electric automobile during traveling on road, and test with
Corresponding second course continuation mileage of second kerb weight；
Determine the kerb weight of the tested vehicle in continuation of the journey according to first course continuation mileage and second course continuation mileage
The influence coefficient of journey, wherein using the ratio value between second course continuation mileage and first course continuation mileage as the shadow
Ring coefficient；Alternatively, determine the difference between second course continuation mileage and first course continuation mileage, and by the difference and institute
The ratio value of the first course continuation mileage is stated as the influence coefficient, the influence coefficient is for marking the variation of kerb weight to institute
State the influence of course continuation mileage.
2. the method as described in claim 1, which is characterized in that the acquisition tested vehicle corresponding with the first kerb weight
One road running resistance, comprising:
Obtain test parameter, wherein the test parameter includes: coefficient of rolling resistance, air resistance coefficient, front face area, Yi Jisuo
State the speed of tested vehicle；
Calculation processing is carried out to first kerb weight and the test parameter using preset formula, obtains first road
Running resistance.
3. method according to claim 2, which is characterized in that the acquisition tested vehicle corresponding with the second kerb weight
Two road running resistances, comprising:
Calculation processing is carried out to second kerb weight and the test parameter using preset formula, obtains second road
Running resistance.
4. method according to claim 2, which is characterized in that the preset formula includes:
Wherein, f0For coefficient of rolling resistance constant, f1To roll
Resistance coefficient of first order, m are kerb weight, and v is the speed of tested vehicle, and g is acceleration of gravity, CdFor air resistance coefficient, A is windward
Area.
5. the method as described in claim 1-4 is any, which is characterized in that set described according to first road running resistance
Before setting the first loading force of chassis dynamometer, further includes:
Environmental chamber temperature is adjusted according to testing requirement.
6. a kind of electric car course continuation mileage test device characterized by comprising
Module is obtained, for obtaining tested vehicle the first road running resistance corresponding with the first kerb weight；
Processing module, for the first loading force of chassis dynamometer to be arranged according to first road running resistance, so that setting
The stress condition of stress condition of the electric car on chassis dynamometer and the electric automobile during traveling on road is protected afterwards
It holds unanimously, and tests the first course continuation mileage corresponding with first kerb weight；
The acquisition module is also used to obtain tested vehicle the second road running resistance corresponding with the second kerb weight, wherein
Corresponding first kerb weight of electric car loading condition setting and second is respectively configured according to the actual application to reorganize and outfit
Quality, the loading condition of the electric car include light condition, half cargo condition or full load condition；
The processing module is also used to be arranged according to second road running resistance the second loading force of chassis dynamometer, with
Make stress condition of the electric car on chassis dynamometer and stress of the electric automobile during traveling on road after being arranged
Situation is consistent, and tests the second course continuation mileage corresponding with second kerb weight；
Determining module, for determining reorganizing and outfit for the tested vehicle according to first course continuation mileage and second course continuation mileage
Influence coefficient of the quality to course continuation mileage, wherein by the ratio between second course continuation mileage and first course continuation mileage
Value is used as the influence coefficient；Alternatively, determining the difference between second course continuation mileage and first course continuation mileage, and will
The ratio value of the difference and first course continuation mileage reorganizes and outfit matter for marking as the influence coefficient, the influence coefficient
Influence of the variation of amount to the course continuation mileage.
7. device as claimed in claim 6, which is characterized in that the acquisition module is specifically used for:
Obtain test parameter, wherein the test parameter includes: coefficient of rolling resistance, air resistance coefficient, front face area, Yi Jisuo
State the speed of tested vehicle；
Calculation processing is carried out to first kerb weight and the test parameter using preset formula, obtains first road
Running resistance.
8. device as claimed in claim 7, which is characterized in that the acquisition module is specifically also used to:
Calculation processing is carried out to second kerb weight and the test parameter using preset formula, obtains second road
Running resistance.
9. device as claimed in claim 7, which is characterized in that the preset formula includes:
Wherein, f0For coefficient of rolling resistance constant, f1To roll
Resistance coefficient of first order, m are kerb weight, and v is the speed of tested vehicle, and g is acceleration of gravity, CdFor air resistance coefficient, A is windward
Area.
10. the device as described in claim 6-9 is any, which is characterized in that further include:
Setup module, for adjusting environmental chamber temperature according to testing requirement.
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| CN107607125A (en) * | 2017-07-18 | 2018-01-19 | 芜湖赛宝信息产业技术研究院有限公司 | A kind of automobile continual mileage test method |
| CN107655700B (en) * | 2017-08-31 | 2019-11-12 | 北京新能源汽车股份有限公司 | A kind of determination method and device of road resistance of taxing |
| CN108444497A (en) * | 2018-03-29 | 2018-08-24 | 北京新能源汽车股份有限公司 | A kind of test method of vehicle continual mileage, chassis dynamometer and test system |
| CN110487563A (en) * | 2019-08-22 | 2019-11-22 | 广州小鹏汽车科技有限公司 | Reliability checking method, device and the test-bed of vehicle |
| CN110726566B (en) * | 2019-10-23 | 2021-04-06 | 重庆长安汽车股份有限公司 | Method for estimating endurance mileage of electric vehicle |
| CN111855228B (en) * | 2020-06-30 | 2021-05-18 | 东风汽车集团有限公司 | Method and device for measuring and calculating endurance mileage of pure electric vehicle |
| CN112254979A (en) * | 2020-09-10 | 2021-01-22 | 南京金龙客车制造有限公司 | Test method for obtaining lightweight target value of electric automobile |
| CN113442728B (en) * | 2021-06-18 | 2023-11-14 | 武汉力神动力电池系统科技有限公司 | Comprehensive driving mileage management system of electric vehicle |
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