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Design method of power battery temperature control system and corresponding control system

A temperature control system and power battery technology, applied in battery/fuel cell control devices, secondary batteries, design optimization/simulation, etc., can solve the problems of high design and manufacturing costs, insulation, and high difficulty in cooling system manufacturing, and achieve practicality Strong, high reliability, flexible heating energy source effect

Active Publication Date: 2016-05-04
爱科赛智能科技(浙江)有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage is that the design and manufacturing costs are high, and the cooling system is difficult to manufacture. Once the coolant pipe leaks, it will cause serious insulation problems

Method used

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  • Design method of power battery temperature control system and corresponding control system
  • Design method of power battery temperature control system and corresponding control system
  • Design method of power battery temperature control system and corresponding control system

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] The invention provides a method for designing a power battery temperature control system, which specifically includes the following steps:

[0036] (1) According to the installation layout structure of the power battery box and the layout of the battery modules inside the power battery box, construct a geometric model for the thermal simulation calculation of the power battery box;

[0037] Among them, the geometric model of the thermal simulation calculation of the power battery box is as follows: figure 1 As shown, it includes a plurality of battery cells 1, a cooling plate 2, a heat conducting plate 3 and a heating device 4, the cooling plate 2 is arranged between adjacent battery cells 1, the heat conducting plate 3 is connected to the lower part of the cooling plate 2, and Connect with heating device 4 together.

[0038]...

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Abstract

The invention provides a design method of a power battery temperature control system, which comprises: (1) constructing a geometric model of power battery box body thermal simulation calculation; (2) using cycle working conditions of a power battery box body in different working modes as inputs, and obtaining a thermal simulation calculation model of the power battery box body; (3) analyzing an inconsistency condition of temperature distribution among power battery modules and unevenness of surface flow of a power battery; (4) carrying out optimization design on structural design and flow field design of the battery modules; (5) determining a power battery temperature control mode and a protection method; (6) increasing a heating power parameter of a battery heater which meets a battery low-temperature heating requirement, and carrying out analysis calculation again; and (7) judging whether a temperature control requirement of the power battery box is met, completing design if the temperature control requirement of the power battery box is met, and if the temperature control requirement of the power battery box is not met, transferring to the step 4. The design method has the characteristics of high reliability, high practicality and the like. The invention also simultaneously provides a power battery temperature control system.

Description

technical field [0001] The invention belongs to the field of electric vehicles, and in particular relates to a design method of a power battery temperature control system and a corresponding control system. Background technique [0002] The power battery system is one of the core components of electric vehicles, and its performance directly affects the performance and safety of electric vehicles. Due to the limitations of the performance of the chemical materials of the power battery, the temperature of the power battery can only be used normally if it is within a suitable temperature range. For example, the normal discharge temperature range of a lithium iron phosphate battery is 10°C-55°C. When it is lower than 0°C, the available capacity of the power battery decays quickly. When the battery temperature is lower than -20°C, the capacity that can be discharged is very small. up. Similarly, the normal charging temperature of the lithium iron phosphate battery is usually 0°...

Claims

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Application Information

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IPC IPC(8): H01M10/615H01M10/613H01M10/617H01M10/625H01M10/633H01M10/635H01M10/6555H01M10/6571G06F17/50B60L11/18
CPCB60L58/26B60L58/27G06F30/23Y02T10/70
Inventor 周斯加施陈威周勇符兴锋梁智娟
Owner 爱科赛智能科技(浙江)有限公司
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