Battery undervoltage protection method and system based on bms
A battery under-voltage and under-voltage protection technology, which is applied in the direction of emergency protection circuit devices, electrical components, instruments, etc., can solve the problems of battery BMS versatility and ease of use, unfavorable battery applications, etc.
Active Publication Date: 2021-05-18
江苏赣锋动力科技有限公司
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Problems solved by technology
Obviously, this has an impact on the versatility and ease of use of the BMS of the battery, which is not conducive to the application of the battery in various complex scenarios
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[0031] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0032] ginseng figure 1 As shown, the present invention discloses a battery undervoltage protection method based on BMS, including:
[0033] The battery management system monitors the battery voltage V;
[0034] When the battery voltage V is less than or equal to the first voltage threshold V1 and greater than the second voltage thres...
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The present invention discloses a BMS-based battery undervoltage protection method and system. The method includes: a battery management system monitors a battery voltage V; when the battery voltage V is less than or equal to a first voltage threshold V1 and greater than a second voltage threshold V2 , determine that the battery is in an under-voltage state, and perform under-voltage protection on the battery; the under-voltage protection is specifically to determine whether the time when the battery has no current reaches the preset time threshold; if so, disconnect the discharge device of the battery management system, if not, then Periodic undervoltage alarm. The battery under-voltage protection method and system based on the BMS of the present invention can protect the battery under the condition of under-voltage, ensure that the electrical equipment will not be suddenly powered off, ensure the safety of the electrical equipment and the operator, and has high performance. The versatility and ease of use are widely applicable to various scenarios.
Description
technical field [0001] The invention relates to the technical field of battery management, in particular to a BMS-based battery undervoltage protection method and system. Background technique [0002] The battery management system (BMS, BATTERY MANAGEMENT SYSTEM) is the link between the battery and the user, which can improve the utilization rate of the battery and prevent the battery from overcharging and over-discharging. [0003] When the battery-operated device is using the battery, once the battery is undervoltage, the BMS on the market will delay (the delay time may be long or short) and then turn off the switch. The BMS delay protection mainly hopes to communicate with the central control of the equipment through the BMS, and the central control of the equipment can reduce the output power of the battery. However, it is necessary to debug the BMS delay according to the equipment central control, or design the equipment central control according to the BMS delay. Obv...
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IPC IPC(8): H02H7/18G08B21/18
CPCG08B21/185H02H7/18
Inventor 施海驹朱雄伟
Owner 江苏赣锋动力科技有限公司