Temperature compensation method, device with rechargeable battery and storage medium

文档序号:1115351 发布日期:2020-09-29 浏览:13次 中文

阅读说明:本技术 温度补偿方法、具有充电电池的设备及存储介质 (Temperature compensation method, device with rechargeable battery and storage medium ) 是由 姚元 于 2019-03-22 设计创作,主要内容包括:一种温度补偿方法,包括以下步骤:采集所述转接板处的当前温度T;按照预设时间长度划分所述电池充电或放电过程;参考预设的关系模型,得到所述电芯与所述转接板在某一预设时间长度内的温差ΔT<Sub>i</Sub>;累加所述ΔT<Sub>i</Sub>,得到累计温差ΔT;及得到所述电芯温度T<Sub>cell</Sub>,其中,T<Sub>cell</Sub>通过在所述T中减去所述累计温差ΔT得到。本申请还提供一种具有充电电池的设备及存储介质。上述温度补偿方法、具有充电电池的设备及存储介质,可以减少误报警或误关机的情况出现,提升用户体验。(A method of temperature compensation comprising the steps of: collecting the current temperature T at the adapter plate; dividing the charging or discharging process of the battery according to a preset time length; obtaining the temperature difference delta T between the battery cell and the adapter plate within a certain preset time length by referring to a preset relation model i (ii) a Accumulating the Δ T i Obtaining the accumulated temperature difference delta T; and obtaining the cell temperature T cell Wherein, T cell By subtracting the cumulative temperature difference Δ T from the T. The application also provides a device with the rechargeable battery and a storage medium. The temperature compensation method, the equipment with the rechargeable battery and the storage medium can reduce the false alarm or the false shutdown conditionAnd the user experience is improved when the condition appears.)

1. A temperature compensation method is applied to equipment with a rechargeable battery, wherein the battery comprises a battery core and an adapter plate, the equipment further comprises a sensor, the sensor is positioned on the adapter plate and used for acquiring the temperature of the adapter plate, and the method is characterized by comprising the following steps:

collecting the current temperature T at the adapter plate;

dividing the charging or discharging process of the battery according to a preset time length;

obtaining the temperature difference delta T between the battery cell and the adapter plate within a certain preset time length by referring to a preset relation modeli

Accumulating the Δ TiObtaining the accumulated temperature difference delta T; and

obtaining the cell temperature TcellWherein, TcellIs obtained by subtracting the accumulated temperature difference DeltaT from the Tcell=T-ΔT。

2. The method of temperature compensation according to claim 1, further comprising:

correcting the accumulated temperature difference delta T, and comparing the accumulated temperature difference delta T with a temperature difference upper limit threshold value and a temperature difference lower limit threshold value:

when the accumulated temperature difference is larger than the upper temperature difference threshold, taking the upper temperature difference threshold as the current accumulated temperature difference;

and when the accumulated temperature difference is smaller than the temperature difference lower limit threshold, taking the temperature difference lower limit threshold as the current accumulated temperature difference.

3. The temperature compensation method of claim 1, wherein the relationship model is a correspondence model between a rate of change of a temperature difference between the electric core and the interposer, a state of charge (SOC), and a current.

4. The method of temperature compensation according to claim 3, further comprising:

acquiring the state of charge (SOC) and the current of the battery after the battery is charged or discharged for a certain preset time length;

according to the SOC and the current, the change rate of the temperature difference between the corresponding battery cell and the adapter plate is searched in the pre-established relation model;

obtaining the temperature difference delta T according to the product of the change rate of the temperature difference and the preset time lengthi

5. The temperature compensation method of claim 4, wherein the current is an average current of the battery during the predetermined period of time of charging or discharging.

6. The temperature compensation method of claim 3, wherein the relational model is established by a method comprising:

when the battery is charged or discharged under different currents, acquiring the temperature of the battery core and the temperature of the adapter plate to obtain the temperature difference between the battery core and the adapter plate;

analyzing the temperature difference and the SOC under different currents, and determining a relation model among the change rate of the temperature difference, the SOC and the current.

7. The temperature compensation method of claim 6, wherein:

and carrying out regression analysis on the temperature difference and the SOC under different currents to determine a relation model among the change rate of the temperature difference, the SOC and the current.

8. The temperature compensation method of claim 2, wherein the upper threshold temperature difference is between 4 ℃ and 8 ℃ and the lower threshold temperature difference is between-2 ℃ and 2 ℃.

9. An apparatus having a rechargeable battery, the battery including a cell and an adapter plate, the apparatus further comprising:

the sensor is positioned on the adapter plate and used for collecting the temperature of the adapter plate;

the memory is used for storing a pre-established relation model, and the relation model is a corresponding relation model among the change rate of the temperature difference between the battery cell and the adapter plate, the state of charge (SOC) and the current; and

a processor for implementing the temperature compensation method of any one of claims 1 to 8 when executing a computer program stored in a memory.

10. A storage medium having stored thereon at least one computer instruction, wherein the instruction is loaded by a processor to perform a method of temperature compensation according to any one of claims 1 to 8.

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