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A lightweight implementation method and apparatus of a battery box

An implementation method and battery box technology, applied in the direction of electrical digital data processing, design optimization/simulation, special data processing applications, etc., can solve the problems affecting optimization design efficiency, time-consuming, high cost of software and hardware, convergence and stability A problem and other problems, to achieve the effect of improving optimization design efficiency, optimizing sampling points, and shortening the optimization design cycle

Inactive Publication Date: 2019-02-19
DONG HAN NEW ENERGY VEHICLE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Generally, it takes 1-5 hours for one CAE call, and 1000-5000 hours for thousands of calls. The time spent directly calling CAE and the cost of software and hardware are too high
[0005] In addition, the lightweight design of the battery box structure based on CAE software is an iterative process, and convergence and stability are a problem in thousands of iterations
Design errors due to non-convergence and instability will seriously affect the efficiency of optimal design

Method used

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  • A lightweight implementation method and apparatus of a battery box
  • A lightweight implementation method and apparatus of a battery box
  • A lightweight implementation method and apparatus of a battery box

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] A lightweight implementation method for a battery box, such as figure 1 As shown, the method may include S101-S102:

[0087] S101. Determine a response surface approximate model of the battery box.

[0088] In the embodiment of the present invention, such as figure 2 As shown, the determination of the response surface approximate model of the battery box may include S201-S202:

[0089] S201. Construct a finite element model of the battery box, and determine multiple design objects and variable parameters of the design objects from the finite element model.

[0090]In the embodiment of the present invention, CATIA (computer aided three-dimensional interactive application) can be used, but not limited to, to establish the CAD surface and entity of the battery box, and ANSYS is used to divide the grid. ANSYS software is a large-scale general-purpose finite element analysis (FEA) software developed by ANSYS Corporation of the United States. It is the fastest growing com...

Embodiment 2

[0175] In the embodiment of the present invention, a specific embodiment of the scheme of the present invention is provided below:

[0176] In the embodiment of the present invention, a 3-dimensional fine model of the battery pack can be constructed first. The battery pack can be composed of 48 18650 batteries, and ternary lithium batteries can be used. First, 6 batteries are connected in parallel, and then 8 rows are connected in series (6p8s, a total of 48 batteries) Batteries). A schematic diagram of a battery pack can be seen as Figure 9 As shown, the battery box can be as image 3 As shown, it can be composed of 10 battery packs,

[0177] In the embodiment of the present invention, based on the above-mentioned battery box and the aforementioned response surface approximation model, seven design objects are selected, and the mass of the battery box based on the seven design objects can be calculated.

[0178] In the embodiment of the present invention, Table 3 gives th...

Embodiment 3

[0183] A lightweight implementation device 1 for a battery box, such as Figure 10 As shown, it includes a processor 11 and a computer-readable storage medium 12, and instructions are stored in the computer-readable storage medium 12, wherein, when the instructions are executed by the processor 11, the above-mentioned battery box is realized Lightweight implementation method.

[0184] The embodiment scheme of the present invention at least includes the following technical effects:

[0185] 1. The method for realizing the light weight of the battery box according to the embodiment of the present invention may include: determining the response surface approximate model of the battery box; performing quality optimization calculation according to the response surface approximate model, and obtaining the preset weight reduction verification standard The calculation result is taken as the mass of the battery box. Through the solution of this embodiment, the approximate model of th...

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Abstract

The embodiment of the invention discloses a lightweight implementation method and a device of a battery box. The method comprises the following steps: determining a response surface approximation model of the battery box; According to the response surface approximation model, the quality of the battery box is optimized, and the calculation results which accord with the preset quality lightening verification standard are obtained as the quality of the battery box. As that response surface approximation model is adopted for quality optimization calculation, the optimization design period of thebattery box is shortened, and the optimization design efficiency is improve.

Description

technical field [0001] The embodiments of the present invention relate to the battery box design technology, in particular to a method and device for realizing the weight reduction of the battery box. Background technique [0002] In the research on the structural design of the electric vehicle power battery box, the optimal design of the battery box structure based on CAE software is a commonly used method. CAE (Computer Aided Engineering): Computer Aided Engineering is a means of modeling and computational analysis using computer software and hardware. Common CAE methods are: finite element method (Finite Element Method), finite volume method (Finite Volume Method) and finite difference method (FiniteDifferential Method). [0003] The lightweight design of the battery box structure based on CAE (Computer Aided Engineering: Computer Aided Engineering) software requires thousands of CAE modeling and calculations in one optimization process; each calculation needs to change ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/23
Inventor 王玮
Owner DONG HAN NEW ENERGY VEHICLE TECH CO LTD
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