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Low-temperature charging method and charging equipment of electric automobile

A technology for electric vehicles and charging equipment, applied in the field of low-temperature charging methods and charging equipment, can solve the problems of complex charging equipment circuits, long charging time, and insufficient charging, and achieve the effects of improving charging acceptance, low cost, and simple structure

Inactive Publication Date: 2015-09-23
周虎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current-limited charging leads to longer charging time, voltage-limited charging leads to unsatisfactory charging, and pulse charging leads to complex circuits and high costs for charging equipment

Method used

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  • Low-temperature charging method and charging equipment of electric automobile
  • Low-temperature charging method and charging equipment of electric automobile
  • Low-temperature charging method and charging equipment of electric automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Electric vehicle low temperature charging equipment is mainly composed of charging connector, charging cable, DC power supply, communication module, control module and oscillation module. The charging joint is responsible for connecting with the electric vehicle, and adopts a national standard DC interface. The charging cable is responsible for connecting the charging connector and the main part of the charging device, and is a seven-core cable, including power lines and communication lines. The direct current power supply is an AC / DC module, which is responsible for converting the alternating current power supply into direct current, and performing direct current output according to the instruction of the control module. The communication module is a CAN communication module, which is responsible for the communication between the charging device and the outside, mainly with the electric vehicle, and can also communicate with the monitoring background. The control modu...

Embodiment 2

[0015] Electric vehicle low temperature charging equipment is mainly composed of charging connector, charging cable, DC power supply, communication module, control module and oscillation module. The charging joint is responsible for connecting with the electric vehicle, and adopts a national standard DC interface. The charging cable is responsible for connecting the charging connector and the main part of the charging device, and is a seven-core cable, including power lines and communication lines. The direct current power supply is an AC / DC module, which is responsible for converting the alternating current power supply into direct current, and performing direct current output according to the instruction of the control module. The communication module is a CAN communication module, which is responsible for the communication between the charging device and the outside, mainly with the electric vehicle, and can also communicate with the monitoring background. The control modu...

Embodiment 3

[0017] Electric vehicle low temperature charging equipment is mainly composed of charging connector, charging cable, DC power supply, communication module, control module and oscillation module. The charging joint is responsible for connecting with the electric vehicle, and adopts a national standard DC interface. The charging cable is responsible for connecting the charging connector and the main part of the charging device, and is a seven-core cable, including power lines and communication lines. The direct current power supply is an AC / DC module, which is responsible for converting the alternating current power supply into direct current, and performing direct current output according to the instruction of the control module. The communication module is a CAN communication module, which is responsible for the communication between the charging device and the outside, mainly with the electric vehicle, and can also communicate with the monitoring background. The control modu...

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PUM

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Abstract

A low-temperature charging method provided by the present invention is normal charging with circuit oscillation. On the condition of low temperature, an electric automobile normally charges for a certain period of time, then a charging circuit is disconnected and an oscillation circuit is connected, after a battery oscillates for a certain period of time, the oscillation circuit is disconnected and the charging circuit is connected, after that, the electric automobile normally charges for a certain period of time, then the charging circuit is disconnected and the oscillation circuit is connected. And the cycle repeats, low-temperature charging of the electric automobile is achieved.

Description

technical field [0001] The invention relates to a charging method and charging equipment for electric vehicles, in particular to a low-temperature charging method and charging equipment for electric vehicles. Background technique [0002] The development of electric vehicles is very rapid, but its charging problem has always been a bottleneck restricting its development. There are many problems in charging electric vehicles, and the problem of low-temperature charging has always been the weakness of electric vehicles. The charging of electric vehicles is basically outdoors. In winter, the outdoor temperature is relatively low, and electric vehicles often cannot be charged or are not fully charged. There are two main solutions, one is to install a heating device inside the battery pack, and the other is to change the charging strategy. Installing a charging device inside the battery pack increases the cost of the battery pack, increases the weight of the battery pack, and in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/44
CPCY02E60/10
Inventor 周虎周思齐
Owner 周虎
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