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DC charging system and power distribution module, path detection method, charging method

A power module and DC charging technology, which is applied in charging stations, battery/battery traction, electric vehicle charging technology, etc., can solve problems such as hidden safety hazards in charging channels, and achieve the effect of improving safety and accuracy

Active Publication Date: 2019-07-09
XIAN TGOOD INTELLIGENT CHARGING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a DC charging system and its power distribution module, a path detection method, and a charging method for electric vehicles, which can improve the safety of charging sex

Method used

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  • DC charging system and power distribution module, path detection method, charging method
  • DC charging system and power distribution module, path detection method, charging method
  • DC charging system and power distribution module, path detection method, charging method

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Embodiment Construction

[0069] figure 1 It is a structural diagram of Embodiment 1 of the DC charging system of the present invention. The DC charging system can be applied in charging piles to charge electric vehicles. The DC charging system of this embodiment includes a power distribution module 10, a charging monitoring unit 20 and a plurality of power modules (power module 31, power module 32, . . . , power module N) connected via a CAN bus. Moreover, the power module 31 , the power module 32 , . The charging monitoring unit 20 dispatches idle power modules to the power distribution module 10 . The power distribution module 10 is connected to the power module 31, power module 32, ..., power module N through corresponding relays, and connected to the BMS (battery management system) module of the electric vehicle through a charging cable and a charging gun. It should be noted here that only one BMS module is shown in the figure, and correspondingly only one power distribution module 10 correspond...

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Abstract

The invention relates to a DC charging system, a power distribution module, a path detection method, and a charging method. The power distribution module includes a first switch and a second switch arranged in each charging path, and also includes: The fourth switch in the path, and the fourth switch is connected in parallel with the first switch in the corresponding charging path; the first switch that is arranged in each charging path and is used to sample the voltage after passing through the first switch and the second switch Sampling unit; controller, used to control the opening or closing of the first switch, the second switch and the fourth switch of the corresponding charging path, and compare the charging voltage output by the power module in the corresponding charging path with the sampling of the first sampling unit Voltage to judge whether the corresponding charging path is abnormal. Implementing the technical scheme of the invention improves the safety of charging.

Description

technical field [0001] The invention relates to the field of DC charging, in particular to a DC charging system and its power distribution module, a path detection method, and a charging method for electric vehicles. Background technique [0002] With the current rapid development of electric vehicles, charging piles have sprung up like mushrooms after the rain. In order to meet the simultaneous and efficient charging of multiple vehicles, a group charging system is derived. The group charging system is satisfied through one or more channels. The path is composed of relays and some electronic devices. These components are easily damaged, such as relay adhesion, relay failure, etc., resulting in potential safety hazards. Therefore, it is necessary to test the effectiveness of the charging path. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a DC charging system and its power distribution module, a path detection ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L53/14B60L50/60
CPCB60L53/14B60L53/31B60L53/60Y02T10/70Y02T10/7072Y02T90/12Y02T90/14
Inventor 张腾赵绿化卫建荣袁庆民茹永刚
Owner XIAN TGOOD INTELLIGENT CHARGING TECH CO LTD