Electric drive system efficient working area simulation method, device and equipment and storage medium

A technology of electric drive system and simulation method, which is applied in design optimization/simulation, electric digital data processing, special data processing application, etc., can solve problems such as difficulty and increase large experimental time, so as to reduce research and development costs and shorten experimental time. , the result is credible effect

Active Publication Date: 2021-07-23
华域麦格纳电驱动系统有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] As a result, for the traditional method of counting the proportion of qualified discrete points and the total number, it is more difficult to obtain close to the true v

Method used

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  • Electric drive system efficient working area simulation method, device and equipment and storage medium
  • Electric drive system efficient working area simulation method, device and equipment and storage medium
  • Electric drive system efficient working area simulation method, device and equipment and storage medium

Examples

Experimental program
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Example Embodiment

[0044] Example one

[0045]For traditional methods with a compliant discrete point and total number of statistics, the efficient work area of ​​the electric drive system is calculated, and the difficulty of obtaining the real value generated is large, and the interval of the measurement point is intensive, and it is necessary to increase The problem of a large number of experimental time, this embodiment proposes a simulation method of an electric drive system efficient work area, which simulates the three-dimensional surface determined by the electric drive system torque, speed and efficiency, by limited discrete The test data performs surface fitting, establish a more accurate mathematical model, and then use quasi-Monte Carlo to generate a large number of quasi-random number to simulate calculations, obtain the total number of electric drive systems actually output coverage area, while in line with the target efficiency Statistics, the ratio between the two is the proportion of...

Example Embodiment

[0113] Example 2

[0114] This embodiment provides an emulation device for an efficient work area of ​​an electric drive system, please see Figure 7 The simulation device of the electric drive system efficient work area includes:

[0115] Surface fitting module 1, used to obtain test data of torque, speed and efficiency of the electric drive system, fit the test data to the target domain;

[0116] Simulation module 2, by using the quasi-Monte Carlo algorithm, generate a large number of quasi-random numbers to simulate calculations, obtain the actual output of the electric drive system to cover the total number of points in the target domain, record the first statistical value; statistical coverage The point of the domain meets the total number of points required for the efficient workspace, records the second statistical value; calculates the ratio of the second statistical value and the first statistical value to obtain an efficient work area of ​​the electric drive system.

[01...

Example Embodiment

[0123] Example three

[0124] The simulation apparatus of the electric drive system efficient working area of ​​the present invention is described in detail from the angle of the modular functional entity, and the simulation device of the electric drive system efficient work area of ​​the present invention will be described in detail from the angle of hardware processing.

[0125] Please see Figure 8 The simulation device 500 of the electric drive system efficient work area can produce a relatively large difference in configuration or performance, and may include one or more processors (eg, one or more processors). And memory 520, one or more storage media 530 (e.g., one or a Shanghai quantity storage device) of the application 533 or data 532. The memory 520 and the storage medium 530 can be short-lived storage or persistent storage. The program stored in the storage medium 530 may include one or more modules (not shown), each module can include a series of instructions in the si...

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Abstract

The invention discloses an electric drive system efficient working area simulation method, device and equipment and a storage medium. When the proportion of the efficient working area of the electric drive system is calculated by using a traditional method of counting discrete points meeting conditions and the proportion of the total number, the difficulty of obtaining a value close to the true value is large. In order to solve the problem that a large amount of experiment time needs to be increased due to the fact that the interval requirement of measuring points is dense, the invention comprises performing curved surface fitting on limited discrete test data by simulating a three-dimensional curved surface determined by the torque, the rotating speed and the efficiency of an electric drive system; establishing a relatively accurate mathematical model, generating a large number of quasi-random numbers by using a quasi-Monte Carlo method to perform analog calculation, and obtaining the total number of actual output coverage area points of the electric drive system; meanwhile, counting points meeting target efficiency (efficient working area efficiency requirements), and the ratio of the two being the efficient working area proportion. The method meets the GB18488 standard requirement, the test time can be shortened, the research and development cost can be reduced, and meanwhile, the result is credible.

Description

technical field [0001] The invention belongs to the technical field of electric drive systems, and in particular relates to a simulation method, device, equipment and storage medium for a high-efficiency working area of ​​an electric drive system. Background technique [0002] The efficiency test of the new energy vehicle electric drive system is an important part of the drive motor type test. The drive motor system efficiency measurement includes drive controller efficiency measurement, drive motor efficiency measurement, and electric drive overall system efficiency measurement. Some of the parameters involved include: drive motor controller DC bus voltage and current; drive motor voltage, current, and electrical power; drive motor torque, speed, and mechanical power; drive motor, drive motor controller, or drive motor system efficiency . [0003] According to the requirements of GB18488.2-20157.2.5 high-efficiency work area, calculate the percentage of the work area that ...

Claims

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Application Information

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IPC IPC(8): G06F30/15G06F30/17G06F30/20G06F119/02
CPCG06F30/15G06F30/17G06F30/20G06F2119/02
Inventor 袁圆
Owner 华域麦格纳电驱动系统有限公司
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