Analysis method for pure electric vehicle motor working area

A pure electric vehicle and analysis method technology, which is applied in the field of pure electric vehicles, can solve the problems that the motor cannot be obtained directly, the speed and torque point ratio cannot be obtained, and the effect of avoiding data processing, fast processing speed, and high processing accuracy

CN110941877APending Publication Date: 2020-03-31江苏开沃汽车有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-03-31

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Abstract

According to the analysis method for the working area of the motor of the pure electric vehicle, the proportion of the working area of the motor in the whole NEDC working condition can be obtained only through the rotating speed, the torque, the efficiency and the corresponding time of the motor; the above data is obtained through simulation of cuse software and then processed in ncode software, ahistogram can be obtained, and the working time of each working point, the proportion of each working point in the whole working condition and the corresponding efficiency value can be clearly checked from the histogram. By using the method, tedious data processing is avoided, processing can be completed only by importing data and clicking to run node software, and the analysis method has the advantages of convenience, quickness, intuition, clearness, high processing precision, high processing speed and the like.
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Description

Technical field:

[0001] The invention relates to an analysis method for the working area of ​​a pure electric vehicle motor, which belongs to the technical field of pure electric vehicles. Background technique:

[0002] Power economy is the most basic and important performance in vehicle performance. How to choose the most economical motor under the premise of ensuring power performance is a problem that every OEM attaches great importance to. In the early stage of the pure electric vehicle research and development process, simulation software is used to simulate and analyze the power matching of the vehicle, which can provide useful information and related parameters for the selection and matching of power batteries, motors, and transmission systems, and improve the performance of pure electric vehicles for subsequent research. economic basis. With the development of modern computer technology, the use of modeling and simulation for power and economic calculation has becom...

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] The present invention is aimed at the analysis method of pure electric vehicle motor working area, and the steps are as follows:

[0018] (1) Fill in the motor's external characteristic curve, efficiency diagram, maximum speed, rated voltage, and moment of inertia parameters into the motor module in the cruise software, and then create a NEDC working condition simulation task in the Task Folder file for simulation;

[0019] (2) After the simulation, copy and paste the motor speed, torque, efficiency and the corresponding time into the excel sheet, put the time in the first column, the speed in the second column, the torque in the third column, and the efficiency in the fourth column;

[0020] (3) Then put the excel in step (2) into the work folder of ncode software, and save the excel format as csv format;

[0021] (4) Establish a signal processing flow in the...