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Novel quick charging mechanism of electric automobile

A technology for electric vehicles and fast charging, applied in electric vehicles, battery/fuel cell control devices, battery circuit devices, etc., can solve the problems of lack of corresponding mechanisms, inability to switch modules of automatic intelligent controllable switches, etc., and achieve the degree of automation and intelligence high effect

Inactive Publication Date: 2019-05-21
西安电子科技大学芜湖研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this solution is only a simple application of the series-parallel switch, which is not helpful for changing the charging and discharging mode of the battery; it also lacks a corresponding mechanism, and cannot automatically and intelligently switch the two battery connection relationships through the controllable switch module to apply both charging and discharging. state

Method used

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  • Novel quick charging mechanism of electric automobile
  • Novel quick charging mechanism of electric automobile
  • Novel quick charging mechanism of electric automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] like figure 1 , Figure 4 and Figure 5 As shown, a new mechanism for fast charging of electric vehicles includes a power supply station, a three-phase PFC power conversion unit, a charging pile, multiple sets of fast-charging battery pack modules and a control circuit, and the input end of the three-phase PFC power conversion unit is connected to Power supply station, the output end of the three-phase PFC power conversion unit is connected to the charging pile, and the charging pile is used to directly charge the electric vehicle;

[0036] If there is no three-phase isolation transformer involved in the three-phase PFC power conversion unit from the power supply station, the circuit in the charging pile adopts a full-bridge isolation power conversion unit, and the full-bridge isolation power conversion unit is used to convert voltage and current into suitable The voltage and current are output to multiple sets of fast charging battery pack modules and control circuit...

Embodiment 2

[0046] like Figure 1 to Figure 3 As shown, a new fast charging mechanism for electric vehicles includes a power supply station, a three-phase PFC power conversion unit, a charging pile, multiple sets of fast-charging battery pack modules and a control circuit, and the input end of the three-phase PFC power conversion unit is connected to Power supply station, the output end of the three-phase PFC power conversion unit is connected to the charging pile, and the charging pile is used to directly charge the electric vehicle;

[0047] The multiple sets of fast-charging battery pack modules and control circuits are internal circuits of electric vehicles, and the multiple sets of fast-charging battery pack modules and control circuits include charging control module units, controllable switch modules and fast-charging battery packs, and the fast-charging battery packs There are multiple groups in the battery pack, and each fast charging battery pack is connected through a controlla...

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Abstract

The invention discloses a novel quick charging mechanism of an electric automobile. The novel quick charging mechanism of the electric automobile comprises a power supply station, a three-phase PFC power conversion unit (used or power factor correction), a charging pile (comprising a BUCK topological power conversion unit and a monitoring and adjusting unit) and multiple sets of quick charging battery pack module and control circuits; the multiple sets of quick charging battery pack module and control circuits comprise a charging control module unit, a controllable switch module and a quick charging battery pack; due to arrangement of the connection manner of multiple sets of quick charging batteries and the controllable switch module, the serial and parallel connection relationship of thequick charging battery pack can be freely switched; the controllable switch module is controlled by a charging control module unit; the controllable switch module can be automatically and intelligently controlled to switch the two connection relationships; and, the charging pile and the three-phase PFC power conversion unit, which are matched, are arranged, so that the mechanism is complete and effectively.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to a new fast charging mechanism for electric vehicles. Background technique [0002] At present, electric vehicles are developing vigorously, especially now that people are paying more and more attention to environmental pollution issues, and traditional energy issues are imminent, so the proportion of new energy vehicles represented by electric vehicles in the automotive market will increase; [0003] At present, most of the battery packs in electric vehicles adopt a fixed connection mode, so the battery charging and battery power output of electric vehicles are mostly in a single mode, but it is better for the battery packs to be charged in series at high voltage and low current mode during charging, and it is better for the motor to deliver power during discharge. It is better to discharge the batteries in parallel in low voltage and high current mode when the power is charged. ...

Claims

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Application Information

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IPC IPC(8): H02J7/00B60L58/19B60L58/21
CPCY02T10/70
Inventor 吴勇檀生辉王东陈兴伍旭东张金生卫祥何滇张玉明
Owner 西安电子科技大学芜湖研究院
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