Automatic system and method for testing performance of power battery pack of electric automobile

Abstract

The invention discloses an automatic system for testing the performance of a power battery pack of an electric automobile, which comprises a charging and discharging cabinet electrically connected with a first alternating current power supply and a function testing cabinet electrically connected with the charging and discharging cabinet and a second alternating current power supply, and the function testing cabinet is provided with a fast charging port, a discharging port and a slow charging port, the fast charging port, discharging port and slow charging port of the function testing cabinet are used for being electrically connected with the power battery pack to be tested. The automatic system can simulate the working condition environment of the electric automobile, and can be used for performance testing of the power battery pack in the development stage and performance testing of the battery pack in the production and manufacturing processes, a series of performance verifications such as charging and discharging of the power battery pack, a CAN network, capacity and the like can be completed without utilizing a whole automobile resource of the electric automobile, the product development and manufacturing costs of the power battery pack are reduced, and the performance test efficiency of the power battery pack can be improved.

Description

technical field [0001] The invention belongs to the technical field of new energy vehicle power batteries, in particular, the invention relates to an automatic test system and a test method for the performance of electric vehicle power battery packs. Background technique [0002] As one of the key components of electric vehicles, the power battery pack has the functions of outputting electric energy to drive the operation of the electric vehicle motor system, exchanging information with the electric vehicle charging system to realize charging management, and exchanging information with the electric vehicle vehicle controller (VCU) to complete the vehicle energy Management and other functions. The main function of the above-mentioned power battery pack is to directly determine the key performance of the use of electric vehicles. Therefore, in the development and manufacturing process of the power battery pack, the performance of the power battery pack, such as fast charging, ...

AI Technical Summary

Problems solved by technology

[0003] At present, the test methods for power battery packs have the problems that they cannot simulate the working conditions of the whole vehicle and the test content is incomplete. The test system used has problems such as low degree of automation, low test efficiency, and untraceable test data.

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