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Control method of thermal management module size cycle in power battery liquid cooling system

A power battery and module size technology, which is applied in the field of power battery liquid cooling system thermal management module size cycle control, can solve the problem of battery cycle life decline and other issues

Active Publication Date: 2020-11-10
南京骏睿金时新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the temperature rises by 10°C, the cycle life of the cell decreases by nearly 50%

Method used

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  • Control method of thermal management module size cycle in power battery liquid cooling system
  • Control method of thermal management module size cycle in power battery liquid cooling system

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Embodiment Construction

[0022] In order to further understand the invention content, characteristics and effects of the present invention, the following embodiments are listed below, and detailed descriptions are as follows in conjunction with the accompanying drawings.

[0023] The power battery liquid cooling system thermal management module size cycle control method realizes the temperature control of the battery liquid in the battery pack in multiple modes through an integrated thermal management system. The integrated thermal management system includes a cooling and heating unit, a water tank, a water pump, Solenoid valve and control system, the cooling and heating unit is mainly composed of cooling and heating plates, and the integrated thermal management system has three working modes, which are low-temperature cooling mode, cooling mode, and heating mode, so that the battery is always in the most optimal state. The best working temperature is within 10℃-35℃.

[0024] In the present invention,...

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Abstract

The invention relates to a thermal management module size cycle control method for a power battery liquid cooling system. Through the power battery liquid cooling system, the temperature of the battery pack in many modes, the integrated thermal management system internally comprises a refrigeration heating unit, Water tank, water pump, solenoid valve and control system. The refrigeration heating unit is mainly composed of refrigeration heating plate, and the integrated heat management system has three working modes, namely low temperature cooling mode, refrigeration mode and heating mode, so that the battery is always at the optimal working temperature of 10 DEG C-35 DEG C; By reading the temperature and temperature difference of the vehicle state sent by BMS and controlling the operationof the water pump, the cooling and heating unit and the electromagnetic water valve, the method can achieve the goal of keeping the battery working in the optimal temperature range, which responds tothe core component of the battery temperature control demand.

Description

technical field [0001] The invention belongs to the technical field of batteries, and in particular relates to a size cycle control method for a thermal management module of a power battery liquid cooling system. Background technique [0002] The power battery is the energy source of the electric vehicle. During the charging and discharging process, the battery itself will generate a certain amount of heat, which will cause the temperature to rise, and the temperature rise will affect many operating characteristic parameters of the battery, such as internal resistance, voltage, SOC, and available capacity. , charge and discharge efficiency and battery life. The thermal effect of the battery will also affect the performance and cycle life of the vehicle. Therefore, good thermal management is very important for the performance and life of the battery to the mileage of the vehicle. [0003] Due to the existence of battery impedance, during the charging and discharging process ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/42H01M10/48H01M10/613H01M10/615H01M10/6568
CPCH01M10/42H01M10/486H01M10/613H01M10/615H01M10/6568Y02E60/10
Inventor 蒲金鹏王亚峰蒲金山李雪
Owner 南京骏睿金时新能源科技有限公司