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Post-charging battery thermal control method and device based on air temperature prediction

A thermal control and post-charging technology, which is applied in the field of electric vehicle battery thermal management, can solve the problem of large power consumption for battery heating, and achieve the effect of reducing switching frequency and energy consumption

Pending Publication Date: 2022-08-09
JIANGSU ZENIO NEW ENERGY BATTERY TECH CO LTD
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, heating and cooling the battery requires a lot of power

Method used

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  • Post-charging battery thermal control method and device based on air temperature prediction
  • Post-charging battery thermal control method and device based on air temperature prediction
  • Post-charging battery thermal control method and device based on air temperature prediction

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Embodiment Construction

[0046] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0047] figure 2 A battery management system for an electric vehicle is illustrated. The battery management system includes a processor 100 , a battery array 200 , a cooling system 300 , a heating system 400 and a mobile communication module 500 . The processor 100 is connected to the battery array 200 , the cooling system 300 , the heating system 400 and the mobile communication module 500 . The battery array 200 is formed by connecting several batteries in a battery box. The cooling system 300 usually adopts a liquid cooling method for cooling the batteries in the battery array 200 . The heating system 400 usually uses a PTC heating resistor for heating the batteries in the battery array 200 . The mobile communication module 500 uses 2G / 3G / 4G / 5G mobile communication to access the mobile network, so as to connect to the Internet and access websites on th...

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PUM

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Abstract

The invention discloses a post-charging battery thermal control method and device based on air temperature prediction. According to the method or the device, the predicted air temperature of a local area is obtained through a network, the predicted air temperature and the current battery temperature are compared, natural heat dissipation of the battery pack is combined, and heating or cooling of the battery is periodically controlled, so that the battery can be kept in a proper temperature range after being charged, and a user can conveniently use the vehicle at any time; and meanwhile, the electric energy consumed for heating or cooling the battery is reduced.

Description

technical field [0001] The present invention relates to electric vehicle battery thermal management. Background technique [0002] The power source used in existing electric vehicles is usually lithium-ion batteries. Lithium-ion batteries are more sensitive to temperature. Too low and too high temperatures will affect lithium-ion batteries, and even cause explosions, resulting in serious driving safety problems. Therefore, it needs to be within a reasonable working range when charging or discharging the lithium-ion battery. The ambient temperature changes with the climatic conditions, and it is difficult to maintain the temperature range of the lithium-ion battery. To this end, many electric vehicles are equipped with liquid cooling systems and heating systems for battery packs. When the battery temperature is too low, the battery temperature is increased by heating the battery by the heating system. When the battery temperature is too high, the cooling of the battery by...

Claims

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Application Information

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IPC IPC(8): H01M10/633H01M10/625H01M10/635H01M10/613H01M10/615H01M10/0525
CPCH01M10/633H01M10/625H01M10/635H01M10/613H01M10/615H01M10/0525Y02T10/70Y02E60/10H01M10/486
Inventor 王志刚
Owner JIANGSU ZENIO NEW ENERGY BATTERY TECH CO LTD
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