High-voltage battery pack test system

Abstract

The invention discloses a high-voltage battery pack test system, which comprises a central processing unit (CPU) module, a discharge control module, a charge control module, a discharge power circuit, a charge power circuit, a power supply and a monomer voltage acquiring module; a battery pack is connected with the CPU module through the monomer voltage acquiring module; the battery pack is connected with the discharge power circuit; the battery pack is connected with the charge power circuit; the CPU module is connected with the charge power circuit through the power supply; the discharge power circuit is connected with the discharge control module; the charge power circuit is connected with the charge control module; and the discharge control module is connected with the CPU module, and the charge control module is connected with the CPU module. The test system provided by the invention has the advantages that the system uses a singlechip as a nuclear processing element, the charge and discharge time, capacitance, energy and the like of the battery pack are calculated through acquiring the information of the monomer voltage, general voltage, temperature, charge current, discharge current and the like of the battery pack, and the data is sent to an upper computer through the Ethernet and an RS485 bus.

Description

technical field [0001] The invention relates to a high-voltage battery pack testing system. Background technique [0002] The function of the battery pack test equipment is mainly to charge and discharge the battery. How to charge and discharge the battery quickly and safely is a very important joint in the design of the test equipment, especially for the high-voltage and high-power battery pack test, and it is even more important for the accuracy of the test equipment. , Higher security requirements. Not only that, but the real-time and accuracy of the battery pack test data transmission are also crucial. Therefore, the key to the high-voltage battery pack test system lies in the charge and discharge control and communication quality. [0003] At present, constant-current and constant-voltage charging of batteries has been accepted by the industry as a common charging method, but there are mainly two types of existing constant-voltage charging implementation methods: soft...

AI Technical Summary

Problems solved by technology

Software constant voltage is generally carried out by means of single-chip software processing. This method is easily affected by factors such as crystal oscillators, voltage acquisition chips, and program bugs, and cannot protect batteries and test equipment in a timely and effective manner.

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