Battery preheating and cooling integrated design system and method for electric aircraft

By designing the integrated battery preheating and cooling design system for electric aircraft, the battery temperature is dynamically controlled in real time, the thermal management problems arising from electric aircraft batteries during high-power charging are solved, the battery temperature is uniformized and the available energy is maximized, and the battery service life is extended.

CN114976367BActive Publication Date: 2025-03-25CHONGQING JIAOTONG UNIV +1
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Patent Information

Application Number
CN202210582168.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-05-26
Publication Date
2025-03-25
Estimated Expiration
2042-05-26

AI Technical Summary

Technical Problem

During the high-power charging process of electric aircraft, the power battery module generates a lot of heat, resulting in an increase in the temperature difference between the inside and outside, affecting the battery performance, and uneven temperature distribution, resulting in battery life attenuation and inconsistent capacity, reducing available energy.

Method used

Design an integrated battery preheating and cooling design system, including a control unit, a heating unit, an air inlet regulation unit, a temperature detection unit and an air outlet regulation unit, and adjust the battery temperature through real-time dynamic control of heating or cooling, so as to achieve temperature uniformity and maximize available energy.

Benefits of technology

By achieving uniformization of battery temperature and dynamic optimization control, the available energy of the battery can be maximized and the service life of the battery can be extended.

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Abstract

The present invention discloses a battery preheating and cooling integrated design system and method for an electric aircraft, comprising a control unit, a heating unit arranged in an air inlet duct, an air inlet regulating unit arranged in a branch air duct, a temperature detection unit arranged in a battery module, and an air outlet regulating unit arranged in an air outlet duct; the air inlet duct and the air outlet duct are respectively the air inlet end and the air outlet end of a cavity, and the branch air duct is located in the cavity; the control unit is used to control the heating unit to heat, the air inlet regulating unit to adjust the air inlet volume, and the air outlet regulating unit to adjust the air outlet volume according to the detected temperature value. By combining the ventilation volume and wind speed, the heating power is adjusted to heat, cool, or keep the battery warm. The present invention can dynamically preheat or cool the battery in real time, maximize the available energy of the battery, and increase the service life of the battery.
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