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On-vehicle charging and discharging system and vehicle with same

A charge-discharge and capacitor technology, applied in the field of vehicles, can solve the problems of electrolytic capacitor C1', such as lifespan, shock resistance, unfavorable system reliability, volume and cost increase, etc., to reduce the number of switch tubes, improve the earthquake resistance level, reduce costs and volume effect

Active Publication Date: 2022-03-18
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this system, in order to provide a stable input DC voltage for the latter stage part2', a large-capacity electrolytic capacitor C1' is required between Part1' and Part2', which increases the volume and cost of the system, and the electrolytic capacitor C1' has a lifespan and is shock-resistant problem, which is detrimental to the reliability of the system

Method used

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  • On-vehicle charging and discharging system and vehicle with same
  • On-vehicle charging and discharging system and vehicle with same
  • On-vehicle charging and discharging system and vehicle with same

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Embodiment Construction

[0022] Embodiments of the present invention will be described in detail below with reference to the embodiments described with reference to the accompanying drawings.

[0023] Below Figure 2 - Figure 7 A vehicle charging power system is described in accordance with an embodiment of the present invention.

[0024] figure 2 A block diagram of a car charge discharge system according to an embodiment of the present invention, such as figure 2 As shown, the in-vehicle charge discharge system 100 of the embodiment of the present invention includes a first resonant circuit module 10, a second resonance circuit module 20, a first rectifier circuit module 80, a second rectifier circuit module 81, and a control module 50.

[0025] Wherein, the first resonance circuit module 10 is configured to convert the input electrical signal, and the first resonant circuit module 10 includes a first conversion unit 11, a first transformer T1, and a three bridge arm circuit conversion unit 12, in the em...

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Abstract

The invention discloses an on-vehicle charging and discharging system and a vehicle with the same, wherein the on-vehicle charging and discharging system includes two resonant circuit modules, two rectifying circuits and a control module, and the first resonant circuit module converts the input electrical signal ; The second resonant circuit module converts the input electrical signal; the first rectification circuit module and the second rectification circuit module rectify the input electrical signal, and the two-way resonant circuit module multiplexes the three-arm circuit conversion unit; Control the first resonant circuit module and the first rectifier circuit module during the first half cycle, or control the second resonant circuit module and the second rectifier circuit module during the second half cycle of power supply, or control the high-voltage battery pack to the low-voltage battery pack When charging, the three-bridge arm circuit conversion unit, the first rectification circuit module and the second rectification circuit module are controlled. The system and vehicle are designed with electrolytic capacitors, which can reduce costs and improve stability.

Description

Technical field [0001] The present invention relates to the field of vehicle technology, and more particularly to a vehicle-in-vehicle charger system, and a vehicle having the vehicle charger system. Background technique [0002] figure 1 It is a circuit diagram of a car charger system in the related art that is connected to the grid and the other end is connected to the battery pack, including Part1 'and Part 2' two-stage circuits. When charging is charged, Part1 'achieves AC-DC conversion and power factor correction, output DC voltage. Part2 'is a DC-DC converter, and the output is suitable for charging the battery pack. For this system, in order to provide a smooth input DC voltage, Part1 'and Part 2' require a large capacity of electrolytic capacitance C1 ', increase the volume and cost of the system, and the electrolytic capacitance C1' is a life, and the earthquake shock Question, the reliability of the system is unfavorable. Inventive content [0003] The present inventi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L53/20
CPCB60L53/20Y02T10/70Y02T10/72Y02T10/7072Y02T90/14
Inventor 杨柳吴昊刘宇许兴发
Owner BYD CO LTD
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