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Battery preheating control method and device suitable for direct current charging pile

A DC charging pile and pre-heating technology, which is applied in charging stations, secondary batteries, transportation and packaging, etc., can solve the problems of battery pre-heating, reduce life attenuation, and ensure charging safety.

Pending Publication Date: 2022-06-17
NEUSOFT REACH AUTOMOBILE TECH (SHENYANG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a control method and device for battery preheating suitable for DC charging piles, so as to alleviate the technical problem that the prior art cannot use DC charging piles to preheat batteries

Method used

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  • Battery preheating control method and device suitable for direct current charging pile
  • Battery preheating control method and device suitable for direct current charging pile
  • Battery preheating control method and device suitable for direct current charging pile

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Embodiment 1

[0043] According to an embodiment of the present invention, an embodiment of a control method for battery preheating suitable for a DC charging pile is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a set of computer executable instructions, for example. and, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that herein.

[0044] figure 1 It is a flow chart of a control method for battery preheating suitable for DC charging piles according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0045] Step S102, when the DC charging pile and the to-be-charged new energy vehicle perform the charging handshake identification work, determine whether the to-be-charged battery needs to be preheated;

[0046] The control method for battery preheating applicable to the D...

Embodiment 2

[0079] The embodiment of the present invention also provides a control device for battery preheating suitable for DC charging piles, and the control device for battery preheating suitable for DC charging piles is mainly used to implement the The control method for the battery preheating of the DC charging pile is described below in detail for the control device suitable for the battery preheating of the DC charging pile provided by the embodiment of the present invention.

[0080] image 3 It is a schematic diagram of a control device suitable for battery preheating of DC charging piles according to an embodiment of the present invention, such as image 3 As shown, the device mainly includes: a judgment unit 10, a control unit 20, an acquisition and transmission unit 30 and a contactor disconnection unit 40, wherein:

[0081] The judgment unit is used to judge whether the battery to be charged needs to be preheated when the DC charging pile and the new energy vehicle to be ch...

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Abstract

The invention provides a battery preheating control method and device suitable for a direct current charging pile, and the method comprises the steps: controlling a contactor in a high-voltage loop to execute a switching action after the charging handshake recognition work is completed if a to-be-charged battery needs to be preheated, and enabling the to-be-charged battery to be in the high-voltage loop; obtaining a charging pile output ready message sent by the direct current charging pile, and sending a first battery charging demand to the direct current charging pile, so that the direct current charging pile outputs a charging current; and when the charging current output by the direct-current charging pile meets a preset condition, a target contactor in the contactors is disconnected, so that the to-be-charged battery is disconnected from the high-voltage loop, and the charging current output by the direct-current charging pile supplies power to a heater of the to-be-charged new energy automobile, so that the heater heats the to-be-charged battery. According to the control method, the direct-current charging pile can be used for preheating the to-be-charged battery, so that the charging safety of the battery is ensured, and the service life attenuation of the battery is reduced.

Description

technical field [0001] The present invention relates to the technical field of battery preheating, in particular to a control method and device for battery preheating suitable for DC charging piles. Background technique [0002] With the scarcity of resources in the world and the increasing environmental pollution, my country is vigorously developing new energy vehicles represented by electric vehicles. As we all know, the battery configured on the current electric vehicle is greatly affected by the ambient temperature. When the temperature is very low (eg, -10°C to -20°C), the charging pile cannot directly charge the battery. Because when the battery is charged at low temperature, the charging current of the battery is very small (at a lower temperature, the battery is prohibited from charging, that is, the charging current is 0). If the actual charging current output by the DC charging pile is too large (meaning greater than The rechargeable current of the battery) will c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/62H01M10/615H01M10/625H01M10/633H01M10/637
CPCB60L53/62H01M10/615H01M10/625H01M10/633H01M10/637Y02T10/70Y02T10/7072Y02T90/12
Inventor 陈明亮王晓玉曹斌
Owner NEUSOFT REACH AUTOMOBILE TECH (SHENYANG) CO LTD
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