Cascaded battery management system

A battery management system, cascaded technology, applied in secondary batteries, battery overcharge protection, battery circuit devices, etc., can solve the problems of reliability discount of management system, inability to protect single unit over temperature, signal acquisition interference, etc. Achieve the effect of improving dynamic response and accuracy, simple structure and fast response speed
CN105470595BActive Publication Date: 2018-01-09CHAJNA MAJNING DRAJVS EHND AUTOMEHJSHN KO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHAJNA MAJNING DRAJVS EHND AUTOMEHJSHN KO
Publication Date
2018-01-09

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Abstract

The invention relates to a cascaded battery management system. The cascaded battery management system comprises a cascaded signal acquisition balanced protection circuit, a voltage and temperature processing circuit, a current acquisition circuit and a data processing and communication circuit, wherein the cascaded signal acquisition balanced protection circuit is used for respectively acquiring a voltage signal of each battery of a battery pack to the voltage and temperature processing circuit, the data processing and communication circuit is used for respectively acquiring a voltage / temperature signal, processed by the voltage and temperature processing circuit, of each monomer battery and current information, acquired by the current acquisition circuit, of a battery loop during charging and discharging so as to achieve charge state estimation of the battery, voltage balance of each monomer battery and protection on overtempeature, low temperature, undervoltage, overvoltage, overcharging, over-discharging and the like, and meanwhile, the battery information is interacted with a vehicle-mounted center control system through the data processing and communication circuit.
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Description

technical field

[0001] The invention relates to a cascaded battery management system, belonging to the technical field of power battery applications. Background technique

[0002] Today, with the increasing shortage of energy resources and the intensification of environmental pollution, the global automotive industry is facing the huge challenge of product retention and technological innovation. At this stage, with the improvement of the overall living standard, more and more vehicle exhaust emissions undoubtedly aggravate the global air pollution and the more and more frequent smog weather to a certain extent. The use of efficient and clean energy to replace traditional power sources will become the main aspect of vehicle power reform. Therefore, accelerating the electrification of vehicle power systems has become a top priority for all countries to alleviate energy and environmental problems. As a traditional energy storage power supply equipment, the use of batteries has...

Claims

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