Vehicle-mounted charging system and vehicle with same

A vehicle-mounted charging and capacitor technology, which is applied in the field of vehicles, can solve the problems of unfavorable system reliability, lifespan, shock resistance, volume and cost increase of electrolytic capacitor C1', so as to broaden the range of charging voltage, improve charging efficiency, reduce costs and volume effect

Active Publication Date: 2021-03-30
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

Method used

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  • Vehicle-mounted charging system and vehicle with same
  • Vehicle-mounted charging system and vehicle with same
  • Vehicle-mounted charging system and vehicle with same

Examples

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Embodiment Construction

[0020] Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary, and embodiments of the present invention are described in detail below.

[0021] Refer below Figure 2-Figure 8 An on-vehicle charging system according to an embodiment of the present invention will be described.

[0022] figure 2 is a block diagram of an on-board charging system according to an embodiment of the present invention, such as figure 2 As shown, the vehicle charging system 100 of the embodiment of the present invention includes a first resonant circuit module 10 , a second resonant circuit module 20 , a DC conversion circuit module 30 and a control module 40 .

[0023] Wherein, the first resonant circuit module 10 is used for converting the electrical signal of the first half cycle of power supply, the first resonant circuit module 10 includes a first conversion unit 11, a first transformer T1, and a second conv...

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Abstract

The invention discloses a vehicle-mounted charging system and a vehicle with the same, the vehicle-mounted charging system comprises a first resonance circuit module, a second resonance circuit module, a direct current conversion circuit module and a control module, and the first resonance circuit module converts an electric signal of a first half cycle of power supply; the second resonance circuit module converts the electric signal of the second half period of power supply; the first resonance circuit module and the second resonance circuit module reuse a second conversion unit, and the direct current conversion circuit module performs DC-DC conversion on the input electric signal; the control module controls the gating of the first resonance circuit module in a first half period of power supply, controls the first resonance circuit module according to a time sequence signal of the first half period of power supply, controls the gating of the second resonance circuit module in a second half period of power supply, and controls the second resonance circuit module according to a time sequence signal of the second half period of power supply. According to the system and the vehicle,the electrolytic-capacitor-free design is adopted, the cost can be reduced, and the stability is improved.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to an on-board charging system and a vehicle with the on-board charging system. Background technique [0002] figure 1 It is a circuit diagram of an on-board charging system in the related art. One end of the system is connected to the power grid, and the other end is connected to the battery pack, including Part1' and Part2' two-stage circuits. During forward charging, Part1' realizes AC-DC conversion and power factor correction, and outputs DC voltage. Part2’ is a DC-DC converter that outputs a suitable voltage to charge the battery pack. 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 reliabil...

Claims

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Application Information

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IPC IPC(8): B60L53/20B60L53/22
CPCB60L53/20B60L53/22Y02T10/70Y02T10/7072Y02T90/14
Inventor 许兴发吴昊刘宇杨柳
Owner BYD CO LTD
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