Fault monitoring method of battery pack and battery management system
A battery management system and fault monitoring technology, applied in the direction of measuring electricity, measuring devices, electric vehicles, etc., can solve the problems such as power failure of the whole new energy vehicle, insufficient safety of the battery pack, and difficulty in discovering battery operation faults in time. Avoid safety problems, avoid the effect of continuous discharge
Pending Publication Date: 2022-07-12
上海琪埔维半导体有限公司
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Problems solved by technology
However, in the actual implementation process, the inventor found that the disposal method for battery failure in the prior art is relatively simple, and it is difficult to find the operation failure of the battery in time and effectively dispose of the faulty battery
This leads to insufficient safety of the battery pack as a whole, and when a single battery fails, it will lead to a power outage of the new energy vehicle
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[0055] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.
[0056] It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.
[0057] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but it is not intended to limit the present invention.
[0058] The present invention includes:
[0059] A fault monitoring method for a...
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The invention relates to the technical field of new energy automobile batteries, in particular to a fault monitoring method of a battery pack and a battery management system, and the fault monitoring method comprises the steps: S1, obtaining the battery data of each battery unit in the battery pack; s2, judging whether the battery unit is a fault battery or not according to the battery data; if yes, turning to the step S3; if not, returning to the step S1; and S3, disconnecting the output loop of the fault battery, and then returning to the step S1. The method has the beneficial effects that the state of the battery is effectively judged by acquiring the real-time battery data of the battery unit, and the output loop of the faulty battery is cut off, so that the problems of overheating, fire and the like possibly caused by continuous discharge of the faulty battery are avoided. And when a single battery unit fails, the whole battery pack can still work normally, so that the safety problem possibly caused by power failure of the whole vehicle is avoided.
Description
technical field [0001] The invention relates to the technical field of new energy vehicle batteries, in particular to a fault monitoring method for a battery pack and a battery management system. Background technique [0002] A battery pack refers to an assembly that realizes a specific charge and discharge function by assembling a single cell into a battery unit and then connecting a plurality of battery units with a specific loop. A battery management system (BMS) usually refers to a system that is connected to the battery pack, controls the battery pack to achieve specific functions, and is used for the interaction between the user and the battery pack. With the development of new energy vehicle technology, how to improve the overall reliability of the battery pack and how to achieve better management functions of the battery management system is considered to be an extremely important technology development direction. [0003] In the prior art, in order to ensure the sa...
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IPC IPC(8): G01R31/382G01R31/396
CPCG01R31/382G01R31/396Y02T10/70
Inventor 秦岭王石林
Owner 上海琪埔维半导体有限公司