Unmanned aerial vehicle universal lithium battery pack full-life management device and management method thereof

Abstract

The invention provides an unmanned aerial vehicle universal lithium battery pack full-life management device and a battery management method thereof. The management device comprises a battery jar andan unmanned aerial vehicle battery management module, wherein the battery jar is detachably mounted on the unmanned aerial vehicle battery management module; and the battery jar is internally equippedwith a lithium battery pack formed by a plurality of single lithium batteries arranged in a buckling manner. The lithium battery pack is connected with the positive electrode and the negative electrode of the battery jar through a control switch, and series-parallel connection of the single lithium batteries is achieved, so that the problems of poor compatibility of existing unmanned aerial vehicle batteries and integration of the battery management module and the battery are solved, and independent disassembly, replacement and assembly of the batteries and the management modules can be achieved; battery parameters are preset through a communication interface, so that the universality of the management module is improved; through arrangement of a storage chip and a clock chip, recordingand storage of state information of each battery in a full life circle are realized; and the SOC and SOH states of the battery can be well predicted, and the working reliability of the batteries during flight is improved.

Description

technical field [0001] The invention belongs to the field of electronic technology and is mainly used for a micro multi-rotor unmanned aerial vehicle system powered by a lithium battery pack. The inventive device and method are used to manage the work of the lithium battery pack of the unmanned aerial vehicle. Background technique [0002] The UAV lithium battery and its battery management module in the prior art have the following problems: [0003] 1. Since the UAV industry, especially the micro UAV (hereinafter referred to as UAV) industry based on lithium battery power is still in the early stage of development, the types of lithium battery pack power systems of UAV manufacturers vary widely, resulting in different lithium batteries. The compatibility between battery modules is poor, which affects the further development of the power system of drones; take the battery packs of various brands of drones that can be searched on the Internet as examples, such as DJI, Xiaomi ...

AI Technical Summary

Problems solved by technology

[0003] 1. Since the UAV industry, especially the micro UAV (hereinafter referred to as UAV) industry based on lithium battery power is still in the early stage of development, the types of lithium battery pack power systems of UAV manufacturers vary widely, resulting in different lithium batteries. The compatibility between battery modules is poor, which affects the further development of the power system of drones; take the battery packs of various brands of drones that can be searched on the Internet as examples, such as DJI, Xiaomi and other brands. Compatible use cannot be achieved; relatively speaking, lithium battery packs for vehicles have begun to develop general modular module applications;

[0004] 2. At present, the battery management module of the lithium battery pack for drones is usually integrated with the battery. The interfaces of the battery management modules of different manufacturers are inconsistent, and they can only manage specific types of batteries; various types of lithium batteries for drones are available. Analysis of the structural composition of the module, the battery management module and the battery are integrated design, the battery or the management module cannot be replaced separately during normal use

[0005] 3. Due to the integrated design of the UAV battery management module and the battery, when the battery is scrapped at the end of its service life, the battery management module will also be scrapped together, resulting in waste of cost and resources;

[0006] 4. At present, the monitoring and prediction of battery performance by the UAV battery management module is mainly based on the calculation and analysis of real-time parameters such as battery pack voltage, current, and temperature in the operating state; from known information, no unmanned The battery management system of the machine can record the information in the non-operating state, form a relatively complete historical usage information data, and perform state analysis based on the complete service life cycle of the battery

Due to the lack of complete records of historical usage status, there are certain deficiencies in battery status prediction, large deviations in drone battery performance evaluation, and even sudden battery failure during flight.

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