CN112254979A - Test method for obtaining lightweight target value of electric automobile - Google Patents
Test method for obtaining lightweight target value of electric automobile Download PDFInfo
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- CN112254979A CN112254979A CN202010945864.6A CN202010945864A CN112254979A CN 112254979 A CN112254979 A CN 112254979A CN 202010945864 A CN202010945864 A CN 202010945864A CN 112254979 A CN112254979 A CN 112254979A
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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
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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
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
- G01G19/03—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing during motion
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
Abstract
The invention discloses a test method for obtaining a lightweight target value of an electric automobile, which comprises the following specific steps: preparing a test vehicle, adjusting the mass of the test vehicle to a preset test mass, cutting off the braking energy recovery function, mounting a motor vehicle road tester on the test vehicle, and performing a sliding test on the test vehicle on a horizontal asphalt pavement; carrying out tests and data acquisition according to preset test quality, carrying out tests on test vehicles at a constant speed of 40km/h and recording test mileage data under each preset test quality; after the data effectiveness is analyzed, fitting a test quality and driving range curve and a fitting curve formula by using the effective data; and calculating a test quality parameter corresponding to the target mileage according to the fitting curve formula and the target driving range, and calculating the preparation quality corresponding to the target mileage according to the design loading quality of the vehicle type, so as to obtain the lightweight target value of the vehicle type. The method is simple to operate, high in measuring and calculating efficiency and low in use cost.
Description
The technical field is as follows:
the invention relates to a test method for obtaining a lightweight target value of an electric automobile, and belongs to the technical field of electric automobiles.
Background art:
for the electric automobile, if the energy density and the power density of the battery have no substantial breakthrough in the development stage, the light weight design is the most effective way for increasing the driving range and reaching the set driving range target value of the electric automobile. However, in the actual development process, due to the restrictions of development expenses, test conditions and the like, the lightweight target data cannot be obtained timely, inexpensively and effectively, so that a new test method is needed.
The invention content is as follows:
the present invention provides a test method for obtaining a target value for weight reduction of an electric vehicle, in order to solve the above-mentioned problems of the prior art.
The technical scheme adopted by the invention is as follows: a test method for obtaining a lightweight target value of an electric automobile comprises the following specific steps:
firstly, preparing a test vehicle, adjusting the mass of the test vehicle to a preset test mass, cutting off the braking energy recovery function, installing a motor vehicle road tester on the test vehicle, and driving the test vehicle on a horizontal asphalt pavement for sliding test;
secondly, carrying out tests and data acquisition according to preset test quality, wherein the test vehicles carry out tests at a constant speed of 40km/h and record test mileage data under each preset test quality;
thirdly, after the data effectiveness is analyzed, fitting a test quality and driving range curve and a fitting curve formula by using the effective data;
and fourthly, calculating test quality parameters corresponding to the target mileage according to the fitting curve formula and the target driving range, and calculating the servicing quality corresponding to the target mileage according to the design loading quality of the vehicle type, so that the light-weight target value of the vehicle type can be obtained.
The invention has the following beneficial effects: the test method for obtaining the light-weight target value of the electric automobile has the advantages of simple operation, high measuring and calculating efficiency and low use cost, can effectively obtain the relation between the target driving range of the developed vehicle and the light-weight target value, and provides reliable development target data for the development of the electric automobile.
Description of the drawings:
FIG. 1 is a schematic illustration of a curve fit to test mass and range data in an embodiment of the present invention.
The specific implementation mode is as follows:
the invention discloses a test method for obtaining a lightweight target value of an electric automobile, which comprises the following specific steps of:
firstly, preparing a test vehicle, adjusting the mass of the test vehicle to a preset test mass, cutting off the braking energy recovery function, installing a motor vehicle road tester on the test vehicle, and driving the test vehicle on a horizontal asphalt pavement for sliding test;
secondly, carrying out tests and data acquisition according to preset test quality, wherein the test vehicles carry out tests at a constant speed of 40km/h and record test mileage data under each preset test quality;
thirdly, after the data effectiveness is analyzed, fitting a test mass and driving range curve and a fitting curve formula by using the effective data, wherein the fitting curve formula is Y-897.02-0.151X, X is the test mass, and Y is the driving range;
and fourthly, calculating test quality parameters corresponding to the target mileage according to the fitting curve formula and the target driving range, and calculating the servicing quality corresponding to the target mileage according to the design loading quality of the vehicle type, so that the light-weight target value of the vehicle type can be obtained.
The following describes a test method for obtaining a target value for weight reduction of an electric vehicle according to the present invention with reference to a specific example.
The light logistics vehicle in development is taken as a test vehicle, and the example test operation is carried out according to the method disclosed by the invention, so that the weight reduction target value data of the light logistics vehicle is effectively obtained.
The specific application is as follows: (1) selecting a light logistics vehicle, the main parameter information of which is shown in table 1
TABLE 1 Main parameters
(2) The constant velocity method test is carried out by adjusting the test loading quality of the test vehicle, and the obtained test data are shown in Table 2
TABLE 2 isotachy test data
A curve was fitted according to the test mass and range data of table 2 as shown in figure 1.
According to the calculation of a fitted curve, when Y is 897.02-0.151X, the test quality of the light logistics vehicle is to reach the target driving range of 402 km: 3278kg, and under the condition of ensuring 1390kg of design loading mass of the light logistics vehicle, the vehicle preparation mass is 2583kg, namely the vehicle is reduced by 517 kg.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (1)
1. A test method for obtaining a lightweight target value of an electric automobile is characterized by comprising the following steps: the method comprises the following specific steps:
firstly, preparing a test vehicle, adjusting the mass of the test vehicle to a preset test mass, cutting off the braking energy recovery function, installing a motor vehicle road tester on the test vehicle, and driving the test vehicle on a horizontal asphalt pavement for sliding test;
secondly, carrying out tests and data acquisition according to preset test quality, wherein the test vehicles carry out tests at a constant speed of 40km/h and record test mileage data under each preset test quality;
thirdly, after the data effectiveness is analyzed, fitting a test quality and driving range curve and a fitting curve formula by using the effective data;
and fourthly, calculating test quality parameters corresponding to the target mileage according to the fitting curve formula and the target driving range, and calculating the servicing quality corresponding to the target mileage according to the design loading quality of the vehicle type, so that the light-weight target value of the vehicle type can be obtained.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010945864.6A CN112254979A (en) | 2020-09-10 | 2020-09-10 | Test method for obtaining lightweight target value of electric automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010945864.6A CN112254979A (en) | 2020-09-10 | 2020-09-10 | Test method for obtaining lightweight target value of electric automobile |
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| CN112254979A true CN112254979A (en) | 2021-01-22 |
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| CN202010945864.6A Pending CN112254979A (en) | 2020-09-10 | 2020-09-10 | Test method for obtaining lightweight target value of electric automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113484037A (en) * | 2021-08-06 | 2021-10-08 | 中国汽车工程研究院股份有限公司 | Electric vehicle body-oriented lightweight evaluation method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890914A (en) * | 2016-06-27 | 2016-08-24 | 北京新能源汽车股份有限公司 | Method and device for testing driving mileage of electric automobile |
| CN108909717A (en) * | 2018-07-12 | 2018-11-30 | 奇瑞汽车股份有限公司 | Lightweight horizontal determining method, device and the storage medium of electric car |
| CN109631901A (en) * | 2018-12-27 | 2019-04-16 | 奇瑞商用车（安徽）有限公司 | A kind of calculation method of the corresponding electrical demand of new-energy automobile course continuation mileage |
| CN110110467A (en) * | 2019-05-17 | 2019-08-09 | 电子科技大学 | Pure electric automobile vehicle frame light weight method based on Non-Linear Programming |
| CN110254569A (en) * | 2019-05-28 | 2019-09-20 | 奇瑞汽车股份有限公司 | A kind of passenger car vehicle Lightweight Technology level evaluation method and storage medium |
| CN110702422A (en) * | 2019-08-26 | 2020-01-17 | 南京金龙新能源汽车研究院有限公司 | Electric automobile driving range simulation measuring and calculating method |
-
2020
- 2020-09-10 CN CN202010945864.6A patent/CN112254979A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890914A (en) * | 2016-06-27 | 2016-08-24 | 北京新能源汽车股份有限公司 | Method and device for testing driving mileage of electric automobile |
| CN108909717A (en) * | 2018-07-12 | 2018-11-30 | 奇瑞汽车股份有限公司 | Lightweight horizontal determining method, device and the storage medium of electric car |
| CN109631901A (en) * | 2018-12-27 | 2019-04-16 | 奇瑞商用车（安徽）有限公司 | A kind of calculation method of the corresponding electrical demand of new-energy automobile course continuation mileage |
| CN110110467A (en) * | 2019-05-17 | 2019-08-09 | 电子科技大学 | Pure electric automobile vehicle frame light weight method based on Non-Linear Programming |
| CN110254569A (en) * | 2019-05-28 | 2019-09-20 | 奇瑞汽车股份有限公司 | A kind of passenger car vehicle Lightweight Technology level evaluation method and storage medium |
| CN110702422A (en) * | 2019-08-26 | 2020-01-17 | 南京金龙新能源汽车研究院有限公司 | Electric automobile driving range simulation measuring and calculating method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113484037A (en) * | 2021-08-06 | 2021-10-08 | 中国汽车工程研究院股份有限公司 | Electric vehicle body-oriented lightweight evaluation method |
| CN113484037B (en) * | 2021-08-06 | 2023-09-19 | 中国汽车工程研究院股份有限公司 | Lightweight evaluation method for electric vehicle body |
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Application publication date: 20210122 |