CN111090972A - Method for drawing motor efficiency map by using MATLAB software - Google Patents
Method for drawing motor efficiency map by using MATLAB software Download PDFInfo
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- CN111090972A CN111090972A CN201911351927.9A CN201911351927A CN111090972A CN 111090972 A CN111090972 A CN 111090972A CN 201911351927 A CN201911351927 A CN 201911351927A CN 111090972 A CN111090972 A CN 111090972A
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- matlab
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- efficiency map
- motor efficiency
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/30—Creation or generation of source code
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/20—Drawing from basic elements, e.g. lines or circles
- G06T11/206—Drawing of charts or graphs
Abstract
The invention discloses a method for drawing a motor efficiency map by using MATLAB software, which comprises the steps of firstly drawing motor efficiencies corresponding to different torques at various rotating speeds obtained by a motor experiment into a table 1, enabling the table to have any position, opening MATLAB, newly building an M file, storing the M file in the same path with the table 1, then inputting a set program into the newly built file, and clicking an operation button of the MATLAB to obtain the motor efficiency map; the MATLAB drawing has strong graphic processing capacity, the method is simple to operate and easy to realize, the difference points in experimental data can be clearly seen from the drawing, the four-quadrant efficiency drawing corresponding to the torque-rotating speed can be expanded, and the traditional matrix typesetting mode is not needed for generating the efficiency drawing.
Description
Technical Field
The invention relates to the technical field of motor efficiency, in particular to a method for drawing a motor efficiency map by using MATLAB software.
Background
The performance of the electric drive system, which is one of three electricity in a new energy automobile, directly determines main performance indexes of the electric automobile, such as climbing, acceleration, maximum speed and the like. The electric automobile controller can improve the driving control level of the electric automobile by controlling the torque, the rotating speed and the steering, ensure the efficient and stable operation of the electric automobile and increase the driving mileage of the electric automobile. The motor is required to be tested in the test of the motor and the motor controller, the controller and the electric control system process experimental data at efficiency values corresponding to different rotating speeds and different torques after the experiment is finished, and a motor efficiency map is drawn.
The method comprises the following steps: the existing method for drawing the motor efficiency is complex to operate, experimental data needs to be arranged into a matrix form of rotating speed-torque-efficiency, and a drawing cannot visually reflect measured motor information.
Disclosure of Invention
The invention aims to solve the problems that the existing method for drawing the motor efficiency in the prior art is complicated to operate, experimental data needs to be arranged into a matrix form of rotating speed-torque-efficiency, and a drawing cannot visually reflect the detected motor information.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for drawing a motor efficiency map by using MATLAB software specifically comprises the following steps:
s1, firstly, drawing motor efficiencies corresponding to different torques at various rotating speeds obtained by motor experiments into a table 1, and enabling the table to exist in any position;
s2, opening MATLAB, creating a new file,. M, and storing the new file in the same path as the table 1;
s3, inputting a set program in the newly-built file;
and S4, clicking an operation button of MATLAB to obtain a motor efficiency map.
Preferably, in S3, the program for inputting the setting is as follows:
program code for:
firstly changing motor parameters
Preferably, the MATLAB drawing has strong graphic processing capability, and the difference points in the experimental data can be clearly seen from the drawing.
Preferably, the MATLAB plot can be an extended four-quadrant efficiency plot corresponding to torque versus rotational speed.
Preferably, the MATLAB drawing does not need to generate the efficiency map by using a traditional matrix typesetting mode.
Preferably, the data obtained by the experiment are stored according to a table mode and then run in the matlab, so that the motor efficiency diagram can be efficiently and quickly drawn, the drawn efficiency diagram is accurate, real and effective, and the data obtained by the experiment can be quickly and accurately arranged to form an experiment report.
Compared with the prior art, the method for drawing the motor efficiency map by using MATLAB software provided by the invention has the following steps:
MATLAB drawing has strong graphic processing capacity;
2. the method is simple to operate and easy to realize;
3. the difference points in the experimental data can be clearly seen from the graph;
4. the four-quadrant efficiency map corresponding to torque-rotating speed can be expanded
5. The traditional matrix typesetting mode is not needed to generate the efficiency graph.
Drawings
FIG. 1 is a map of motor efficiency for the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A method for drawing a motor efficiency map by using MATLAB software specifically comprises the following steps:
s1, firstly, drawing motor efficiencies corresponding to different torques at various rotating speeds obtained by motor experiments into a table 1, and enabling the table to exist in any position;
s2, opening MATLAB, creating a new file,. M, and storing the new file in the same path as the table 1;
s3, inputting a set program in the newly-built file;
s4, clicking the MATLAB operation button to obtain a motor efficiency map, as shown in FIG. 1.
Table 1 at S3, the program for inputting the settings is as follows:
program code for:
firstly changing motor parameters
The MATLAB drawing has strong graphic processing capability and can vividly see the difference points in experimental data from the drawing.
The MATLAB plot can expand a four-quadrant efficiency map corresponding to torque-rotational speed.
The MATLAB drawing does not need to generate an efficiency map by using a traditional matrix typesetting mode.
The data obtained by the experiment are stored according to the table mode and then run in the matlab, so that the motor efficiency diagram can be efficiently and quickly drawn, the drawn efficiency diagram is accurate, real and effective, and the data obtained by the experiment can be quickly and accurately arranged to obtain an experiment report.
In summary, the following steps: the MATLAB drawing has strong graphic processing capacity, the method is simple to operate and easy to realize, the difference points in experimental data can be clearly seen from the drawing, the four-quadrant efficiency drawing corresponding to the torque-rotating speed can be expanded, and the traditional matrix typesetting mode is not needed for generating the efficiency drawing.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A method for drawing a motor efficiency map by using MATLAB software is characterized by comprising the following steps:
s1, firstly, drawing motor efficiencies corresponding to different torques at various rotating speeds obtained by motor experiments into a table 1, and enabling the table to exist in any position;
s2, opening MATLAB, creating a new file,. M, and storing the new file in the same path as the table 1;
s3, inputting a set program in the newly-built file;
and S4, clicking an operation button of MATLAB to obtain a motor efficiency map.
2. The method for mapping motor efficiency map using MATLAB software according to claim 1, wherein: in S3, the program for inputting the setting is as follows:
program code for:
firstly changing motor parameters
3. The method for mapping motor efficiency map using MATLAB software according to claim 1, wherein: the MATLAB drawing has strong graphic processing capability and can vividly see the difference points in experimental data from the drawing.
4. The method for mapping motor efficiency map using MATLAB software according to claim 1, wherein: the MATLAB plot can expand a four-quadrant efficiency map corresponding to torque-rotational speed.
5. The method for mapping motor efficiency map using MATLAB software according to claim 1, wherein: the MATLAB drawing does not need to generate an efficiency map by using a traditional matrix typesetting mode.
6. The method for mapping motor efficiency map using MATLAB software according to claim 1, wherein: the data obtained by the experiment are stored according to the table mode and then run in the matlab, so that the motor efficiency diagram can be efficiently and quickly drawn, the drawn efficiency diagram is accurate, real and effective, and the data obtained by the experiment can be quickly and accurately arranged to obtain an experiment report.
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| CN201911351927.9A CN111090972A (en) | 2019-12-25 | 2019-12-25 | Method for drawing motor efficiency map by using MATLAB software |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111976711A (en) * | 2020-09-01 | 2020-11-24 | 宁波洁程汽车科技有限公司 | Matching method for range extender efficient area |
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| CN109960854A (en) * | 2019-02-26 | 2019-07-02 | 武汉理工大学 | A kind of pure electric automobile motor parameter and fixed reduction ratio determine method simultaneously |
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2019
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| US20030078762A1 (en) * | 2001-07-19 | 2003-04-24 | Fujitsu Limited | Simulation system, method, program and record medium |
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| CN109840343A (en) * | 2018-08-29 | 2019-06-04 | 南京金龙新能源汽车研究院有限公司 | Vehicle power matching and method for analyzing performance based on Visual Studio and Matlab hybrid programming |
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