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A new energy vehicle DC charging interface maintenance prompt system and method

A new energy vehicle, DC charging technology, applied in electric vehicle charging technology, charging stations, electric vehicles, etc., can solve the problems of affecting charging efficiency, increasing contact resistance, heating and burning of DC charging interface, etc., to prevent unnecessary losses , the effect of simple structure

Active Publication Date: 2019-09-20
奇瑞新能源汽车股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the DC charging interface is used for many times, it will inevitably cause wear and tear on the surface coating of the current connection terminal, resulting in an increase in contact resistance, affecting the charging efficiency, and even causing the DC charging interface to heat up and burn out.

Method used

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  • A new energy vehicle DC charging interface maintenance prompt system and method

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Embodiment Construction

[0015] The present invention is a system and method for prompting maintenance of the DC charging interface 3 of a new energy vehicle. By counting the number of times the DC charging interface 3 is used, and after the number of times of use reaches a set amount, the maintenance personnel are reminded by the vehicle instrument or other methods. The DC charging interface 3 is inspected and maintained.

[0016] The maintenance reminder system mainly includes: DC charging interface 3 , power battery management system 4 , multimedia module 5 and vehicle CAN network 6 . The DC charging interface 3 is a charging port conforming to the national standard, including CC1 and CC2 signal output lines. The CC1 and CC2 signal output lines are connected to the power battery management system 4 through the low-voltage wiring harness. When the DC charging gun 2 is connected to the DC charging interface 3 normally , CC1 and CC2 output a high level to the power battery management system 4 .

[00...

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Abstract

The invention discloses a direct current charging connector maintenance prompt system and method of a new energy car. A direct current charging connector is connected with a power battery management system through a communication line. The power battery management system transmits prompt signals of maintenance requirements to a multimedia module through a whole car CAN network. The direct currentcharging connector maintenance prompt system and method of the new energy car have the advantages that other parts do not need to be added, the system and method can be achieved by using an existing electric car physical structure, the structure is simple, and unnecessary loss caused by frequent use of the direct current charging connector can be effectively prevented.

Description

technical field [0001] The invention relates to the field of new energy vehicles, in particular to a system and method for prompting maintenance of a DC charging interface of a new energy vehicle. Background technique [0002] The DC charging interface of new energy vehicles, especially the DC charging interface of commercial buses, has the characteristics of large current, high voltage and frequent use. After the DC charging interface is used for many times, it will inevitably cause wear to the surface coating of the current connection terminal, resulting in an increase in contact resistance, affecting the charging efficiency, and even causing the DC charging interface to heat up and burn out. Contents of the invention [0003] The technical problem to be solved by the present invention is to realize a system that counts the number of times of use of the DC charging interface, and reminds the maintenance personnel to inspect and maintain the DC charging interface through ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L53/14B60L53/31B60L53/66
CPCY02T10/70Y02T10/7072Y02T90/12Y02T90/14Y02T90/16
Inventor 曾羽飞吴丽芳王飞姚意汪涛李东沙文瀚刘琳
Owner 奇瑞新能源汽车股份有限公司