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Method for drawing motor efficiency map by using MATLAB software

A technology of motor efficiency and map

Inactive Publication Date: 2020-05-01
江西麦克斯韦科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the cumbersome operation of the existing method for drawing motor efficiency existing in the prior art. It is necessary to organize the experimental data into a matrix form of speed-torque-efficiency, and the graphs made cannot intuitively reflect the measured values. Due to the shortcomings of motor information, a method for drawing motor efficiency maps using MATLAB software is proposed

Method used

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  • Method for drawing motor efficiency map by using MATLAB software
  • Method for drawing motor efficiency map by using MATLAB software
  • Method for drawing motor efficiency map by using MATLAB software

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Experimental program
Comparison scheme
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Embodiment 1

[0029] A method for drawing a motor efficiency map using MATLAB software, specifically comprising the following steps:

[0030] S1. First draw the motor efficiency corresponding to different torques at various speeds obtained from the motor experiment into Table 1, and store the table in any position;

[0031] S2. Open MATLAB, create a new ".M" file, and save it to the same path as Form 1;

[0032] S3, then input the set program in the newly created file;

[0033] S4. Click the run button of MATLAB to get the motor efficiency map, such as figure 1 shown.

[0034]

[0035] Table 1 In S3, the procedure for input setting is as follows:

[0036] code:

[0037] Change the motor parameters first

[0038]

[0039]

[0040] The MATLAB drawing has a strong graphics processing capability, and the differences in the experimental data can be clearly seen from the figure.

[0041] The MATLAB drawing can expand the four-quadrant efficiency diagram corresponding to the torque-...

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Abstract

The invention discloses a method for drawing a motor efficiency map by using MATLAB software. The method comprises the following steps: drawing motor efficiencies corresponding to different torques atvarious rotating speeds obtained by a motor experiment into a table 1; opening MATLAB (Matrix Laboratory) when the table has any position, newly creating a. M file, storing the. M file in the same path as the table 1, then inputting a set program into the newly created file, and clicking an operation button of MATLAB to obtain a motor efficiency map; the MATLAB drawing has very strong graphic processing capability, the method is simple to operate and easy to implement, difference points in experimental data can be clearly seen from the drawing, a four-quadrant efficiency diagram correspondingto torque-rotating speed can be expanded, and an efficiency diagram does not need to be generated by using a traditional matrix typesetting mode.

Description

technical field [0001] 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 technique [0002] As one of the "three electrics" in new energy vehicles, the electric drive system directly determines the main performance indicators of electric vehicles such as climbing, acceleration, and maximum speed. The electric vehicle controller can improve the driving control level of the electric vehicle by controlling the torque, speed and steering, ensure the efficient and stable operation of the electric vehicle, and increase the mileage of the electric vehicle. In the test of the motor and motor controller, we need to test the corresponding efficiency values ​​of the motor, controller and electronic control system at different speeds and different torques. After the experiment is over, process the experimental data and draw the motor efficiency map. [0003] Disadvantages: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F40/174G06T11/20G06F8/30
CPCG06T11/206G06F8/30
Inventor 杨明王长江
Owner 江西麦克斯韦科技有限公司