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Battery management system with safety management

A battery management system and safety management technology, applied in the field of information collection and safety management of power battery packs, can solve problems such as complex structures, and achieve the effects of low misjudgment rate, early detection time, and high accuracy

Inactive Publication Date: 2018-03-06
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fire extinguishing medium is a mixture of foam fire extinguishing agent and water, which requires piping and complex structure

Method used

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  • Battery management system with safety management
  • Battery management system with safety management

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0026] In an exemplary embodiment of the present invention, by collecting battery-related measurable parameters (current, voltage, temperature, gas composition, etc.), battery safety status evaluation is performed through a safety management strategy, and the safety control device is triggered according to the evaluation result, and at the same time Carry out communication alarm. The timing of fire extinguishing is earlier, and it can be controlled at the initial stage of thermal runaway, so as to realize fire extinguishing in the cabin, and the fire extinguishing effect is good.

[0027] figure 1 is a schematic block diagram of a battery management system with safety management according to an embodiment of the present invention. Such as figure 1 As shown, the battery management system with safety management includes a main control unit and ...

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Abstract

The invention relates to a battery management system with safety management. The battery management system with the safety management determines the safety state of a battery through a voltage sensor,a temperature sensor, a flammable gas sensor, a flame sensor and a smoke sensor, and can select a fire-extinguishing strategy according to the thermal runaway situation in the event of a thermal runaway. A main control unit can command a fire-extinguishing device to spray a gas fire-extinguishing medium and cool the battery when the temperature of a battery box exceeds a temperature threshold, when the rate of temperature change is too fast, when the voltage of the battery box exceeds a voltage threshold, when the rate of voltage change is too fast and when the concentration of flammable gasexceeds a threshold; and the main control unit can command the fire-extinguishing device to spray a solid fire-extinguishing medium when a naked flame is in the battery box or the concentration of smoke in the battery box exceeds a threshold.

Description

technical field [0001] The invention relates to a battery management system with safety management, in particular to information collection and safety management of a power battery pack. Background technique [0002] With the increasingly prominent problems of energy crisis and environmental pollution, new energy transportation has been strongly supported by national policies, and the development of electric vehicles is in full swing. my country has become the world's largest producer and largest market for new energy vehicles. With the increase of electric vehicles, their safety issues are gradually exposed, and fire incidents occur from time to time, and the battery safety management function of electric vehicles has received more and more attention. The Ministry of Public Transport has issued a document in 2015, clarifying that the power battery box must have a fire extinguishing function. The market prospect of the battery management system with safety management is br...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/18A62C3/07A62C3/16A62C37/40
CPCA62C3/07A62C3/16A62C37/40B60L58/10B60L2240/54Y02T10/70
Inventor 王开春李建明杨斌郑再平蒋建文周海平
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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