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Power battery heating method based on self-adaption

A power battery and heating method technology, applied in battery/fuel cell control devices, electric vehicles, electric traction, etc., can solve the problems of setting heating conditions, single heating method, lack of pertinence, etc., to achieve the effect of protecting the power battery

Inactive Publication Date: 2018-04-06
CHENGDU RAJA NEW ENERGY AUTOMOTIVE TECH CO LTD
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Problems solved by technology

Most of the existing power battery heating methods have a single heating method, and the corresponding heating conditions are not set according to the actual temperature of the power battery, which is lack of pertinence

Method used

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  • Power battery heating method based on self-adaption

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Embodiment Construction

[0015] Attached below figure 1 The present invention is further described.

[0016] A power battery heating method based on self-adaptation includes the following steps: signal acquisition and processing, heating mode judgment, heating control, and heating termination judgment.

[0017] Further, the signal collection process includes: the battery management system collects the surface temperature of the power battery through a thermistor, calculates the minimum temperature and the maximum temperature of the power battery; and calculates the assembly voltage by means of resistor voltage division. It should be understood that the temperature of different parts of the power battery is different. The battery management system can collect the surface temperature of the power battery through the thermistor, and then calculate the power by bubble sorting, Hill sorting, heap sorting or other methods. The minimum temperature and maximum temperature of the battery.

[0018] Further, t...

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Abstract

The invention relates to the field of power battery heating control and aims to provide a power battery heating method based on self-adaption. According to the adopted technical scheme, the power battery heating method based on self-adaption comprises the following steps of signal collecting treatment, judgment of heating modes, heating control and heating stopping judgment. According to the powerbattery heating method based on self-adaption, accurate heating control over a power battery is achieved, the targeted heating modes can be automatically selected according to the actual temperatureof the power battery, and the heating effect is better.

Description

technical field [0001] The invention relates to the field of heating control of power batteries for vehicles, in particular to an adaptive power battery heating method. Background technique [0002] When the temperature of the power battery is too low, it will affect the performance of the power battery, causing the power battery to not work normally. Therefore, it is necessary to heat the low-temperature power battery to ensure the normal use of the power battery. Most of the existing power battery heating methods have a single heating method, and the corresponding heating conditions are not set according to the actual temperature of the power battery, which lacks pertinence. Therefore, it is necessary to study an adaptive power battery heating method to set corresponding heating conditions for different actual temperatures of the power battery, so as to achieve a better heating effect. Contents of the invention [0003] The purpose of the present invention is to provid...

Claims

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Application Information

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IPC IPC(8): B60L11/18
CPCB60L58/27Y02T10/70
Inventor 陕亮亮廖茜戴润义
Owner CHENGDU RAJA NEW ENERGY AUTOMOTIVE TECH CO LTD
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