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Battery heating control method and device, storage medium and program product

A battery heating and control equipment technology, applied in storage media and program products, battery heating control methods, and equipment fields, can solve the problem that the battery cannot be charged at low temperature, and achieve the effect of effective heating and recovery of charging capacity

Inactive Publication Date: 2021-08-06
BEIJING QISHENG SCIENCE AND TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present disclosure provide a battery heating control method, device, storage medium, and program product to solve the problem that the battery cannot be charged at low temperature

Method used

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  • Battery heating control method and device, storage medium and program product
  • Battery heating control method and device, storage medium and program product
  • Battery heating control method and device, storage medium and program product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] Embodiment 1, a battery heating control method, the composite power supply includes a battery, a bidirectional DC / DC converter and a supercapacitor, wherein the battery is connected to the bidirectional DC / DC converter, and the bidirectional DC / DC converter is connected to the supercapacitor, and the method is applied For the battery heating control device, the battery heating control device is respectively connected to the battery, the bidirectional DC / DC converter, and the supercapacitor, and the method includes:

[0101] When the battery meets the preset conditions, start and control the composite power supply to perform at least one cycle charge and discharge operation; wherein, in any one cycle charge and discharge operation, control the bidirectional DC / DC converter to make the battery pass through the bidirectional The DC / DC converter discharges the supercapacitor, and then controls the bidirectional DC / DC converter so that the supercapacitor charges the battery t...

Embodiment 2

[0105] Embodiment 2. According to the method described in Embodiment 1, the control of the bidirectional DC / DC converter causes the battery to discharge the supercapacitor through the bidirectional DC / DC converter, and then controls the bidirectional DC / DC The converter enables the supercapacitor to charge the battery through a bidirectional DC / DC converter, including:

[0106] Obtain a target discharge current and a target discharge duration, and control the bidirectional DC / DC converter to discharge the supercapacitor from the battery through the bidirectional DC / DC converter with the target discharge current and the target discharge duration;

[0107] Obtaining a target charging current and a target charging duration, controlling the bidirectional DC / DC converter to charge the battery through the bidirectional DC / DC converter with the target charging current and the target charging duration.

Embodiment 3

[0108] Embodiment 3. According to the method described in embodiment 2, the acquisition of target discharge current and target discharge duration includes:

[0109] Acquire the battery temperature before discharge, the state of charge value, the first preset comparison relationship and the second preset comparison relationship, wherein the first preset comparison relationship is the comparison between the battery temperature, the state of charge value and the discharge current Relationship, the second preset comparison relationship is the comparison relationship between battery temperature, state of charge value and discharge duration;

[0110] determining the target discharge current according to the battery temperature before discharge, the state of charge value and the first preset comparison relationship;

[0111] The target discharge duration is determined according to the battery temperature before discharge, the state of charge value and the second preset comparison rel...

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Abstract

The embodiment of the invention provides a battery heating control method and device, a storage medium and a program product. In a hybrid power supply, a super capacitor is connected with a battery through a bidirectional DC / DC converter, and the battery heating control device is connected with the battery, the bidirectional DC / DC converter and the super capacitor. When the battery meets a preset condition, the hybrid power supply is started and controlled to execute at least one cyclic charging and discharging operation, that is, the battery is controlled to discharge the super capacitor through the bidirectional DC / DC converter, and then the super capacitor is controlled to charge the battery through the bidirectional DC / DC converter; if the temperature of the battery reaches a first preset temperature after each cycle charging and discharging operation, the cycle charging and discharging operation is ended; otherwise, the cyclic charging and discharging operation is repeatedly executed until the battery temperature reaches the first preset temperature. In the cyclic charging and discharging operation, the battery cell generates heat to heat the battery when the battery is discharged, electric energy in the super capacitor is recycled, charging and discharging circulation is formed, the battery is heated, and the low-temperature charging capacity of the battery is recovered.

Description

technical field [0001] Embodiments of the present disclosure relate to the field of battery technology, and in particular, to a battery heating control method, device, storage medium, and program product. Background technique [0002] At present, an electric vehicle is a vehicle driven by electricity, such as an electric bicycle, and usually uses a battery as an energy source, and through components such as a controller and a motor, the electric energy is converted into mechanical energy to drive the electric vehicle. However, the power batteries selected by electric vehicles usually have poor low-temperature performance and cannot be charged at low temperatures. Contents of the invention [0003] Embodiments of the present disclosure provide a battery heating control method, device, storage medium and program product to solve the problem that the battery cannot be charged at low temperature. [0004] In the first aspect, an embodiment of the present disclosure provides a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/637H01M10/615H01M10/625
CPCH01M10/637H01M10/615H01M10/625Y02E60/10
Inventor 王言子
Owner BEIJING QISHENG SCIENCE AND TECHNOLOGY CO LTD
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