Battery management system of high-power high-voltage battery pack

Abstract

The invention discloses a battery management system of a high-power high-voltage pack. The battery management system comprises a battery equalization circuit, a central processor, a voltage acquisition module, a current acquisition module, a thermal management module, an electronic switch circuit, a storage recording module and a Bluetooth transmission circuit, wherein the voltage acquisition module, the current acquisition module, the thermal management module, the electronic switch circuit, the storage recording module and the Bluetooth transmission circuit are connected with the central processor, the voltage acquisition module is used for acquiring a real-time voltage of each single battery of the lithium battery pack, the battery equalization circuit is opened / closed by control of thevoltage acquisition module and is used for providing an independent discharging passage for each single battery, the current acquisition module is sued for monitoring a current of the lithium batterypack, the thermal management module is used for monitoring a temperature of the lithium battery pack, the storage recording module is used for storing log information of the lithium battery pack, andthe Bluetooth transmission circuit is used for sending the log information stored in the storage recording module to a Bluetooth mobile terminal. An unmanned aerial vehicle master controller can be connected via a flight control interface, the working log data of the battery management system is uploaded to an upper computer by a data communication interface, so that the upper computer is used for data management.

Description

technical field [0001] The invention relates to a battery management system (Battery Management System, BMS), especially a battery management system of a high-power high-voltage battery pack. Background technique [0002] At present, soft-pack 6s and 12s non-intelligent ordinary batteries are generally used in the plant protection aircraft industry as the power supply for aircraft, which has many potential safety hazards and has many disadvantages: [0003] 1) There is no power display, and the current energy status of the battery is not sure, just like a car without fuel gauge indication is purely blind flying; [0004] 2) Without shell protection, it is easy to be squeezed, water ingress, etc., which will affect the safety and life of the battery; [0005] 3) The battery does not have the function of automatic management and safety alarm prompt, which leads to a decrease in the utilization rate of the battery, and is prone to improper use behaviors such as over-discharge,...

AI Technical Summary

Problems solved by technology

[0010] The main purpose of the present invention is to propose a special battery management system for high-power high-voltage lithium battery packs currently used in the fields of plant protection aircraft, electric vehicles, energy storage batteries, and high-rate battery power supply systems to solve the current high-power The battery management system of the high-voltage lithium battery pack in its main application field has high cost, insufficient functions and huge system problems

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