Battery pack simulation method and device

Abstract

The invention discloses a battery pack simulation method and device, and the method comprises the steps: obtaining the structural characteristics and heat transfer performance of each component in N components of a target battery pack, N being a positive integer greater than 1; determining the resource occupancy rate of each component part in the simulation process according to the structural characteristics of each component part; according to the heat transfer performance and the resource occupancy rate corresponding to each component part, performing structure simplification on each component part to obtain N component parts after structure simplification; and constructing a simulation model of the target battery pack according to the N component parts after structure simplification. According to the method, on one hand, consumption of computing resources and the solving period are reduced, on the other hand, the simulation result with high credibility can be obtained according to the simulation model, the relation between the solving period and the computing resource consumption and the credibility of the thermal insulation simulation result is well balanced, and it is guaranteed that on the premise that certain computing resources exist, the reliability of the thermal insulation simulation result is improved. And a simulation result with relatively high credibility is obtained in a proper solving period.

Description

technical field [0001] The invention relates to the technical field of simulation, in particular to a battery pack simulation method and device. Background technique [0002] The endurance of new energy vehicles will face great challenges in the winter environment. The main reason is that the endurance of the power battery pack will be greatly reduced in low temperature environments. Therefore, it is necessary to do a good job of heat preservation and protection for the power battery pack. [0003] In related technologies, when researching heat preservation measures for power battery packs, it is mainly realized through two methods of experiment and simulation. Among them, when simulating the battery pack, the battery pack needs to be simplified, but there are the following problems: [0004] When the components of the battery pack are simplified too much, although the number of networks is relatively small, the quality is relatively high, the solution cycle is short, and t...

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present application provides a battery pack simulation method and device, which solves the technical problem in the prior art that the calculation resources and the credibility of the simulation results cannot be balanced when performing heat preservation simulation on the battery, and achieves a balance between calculation resources and simulation results. The reliability of the results not only ensures the high reliability of the simulation results, but also avoids the technical effect of using too many computing resources

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