Wireless charging system and method and automobile wireless charging device

A wireless charging and circuit technology, applied in electric vehicles, charging stations, electric vehicle charging technology and other directions, can solve the problem of mismatch between vehicle and infrastructure resonance

Active Publication Date: 2020-04-03
ZTEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In practical applications, the ground clearance of the vehicle chassis will change with factors such as load and tire pressure, resulting in a resonance mismatch between the vehicle and the infrastructure

Method used

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  • Wireless charging system and method and automobile wireless charging device
  • Wireless charging system and method and automobile wireless charging device
  • Wireless charging system and method and automobile wireless charging device

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0044] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0045] In addition, if there are descriptions involving "first", "second" and ...

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Abstract

The invention discloses a wireless charging system and method and an automobile wireless charging device. The wireless charging system comprises: a PFC circuit, an inverter circuit, a primary side resonance network and an infrastructure sampling control circuit which are located on the infrastructure side; and a secondary side resonance network, a controllable rectification adjusting circuit and avehicle-mounted detection control circuit which are located on the vehicle-mounted side. According to the detected resonance parameters of the primary side resonance network and the secondary side resonance network and the obtained charging demand, the working parameters of the controllable rectification adjusting circuit are adjusted, the working frequency of the wireless charging system is adjusted, resonance matching of the primary side resonance network and the secondary side resonance network is achieved, and meanwhile the transconductance/current/voltage gain of the system is adjusted;the infrastructure sampling control circuit is in communication connection with the vehicle-mounted detection control circuit, and controls and adjusts the output current and/or output voltage of thePFC circuit and the inverter circuit according to the detection signal and/or the control instruction output by the vehicle-mounted detection control circuit so as to adjust the output current/voltageof the system.

Description

technical field [0001] The invention relates to the technical field of wireless charging, in particular to a wireless charging system and method and a wireless charging device for automobiles. Background technique [0002] With the development of new energy sources, more and more cars are starting to use electric or gasoline-electric hybrids. When charging electric vehicles, the principle of electromagnetic induction can be used to sample wireless charging. [0003] In practical applications, the ground clearance of the vehicle chassis will change with factors such as load and tire pressure, resulting in a resonance mismatch between the vehicle and the infrastructure. Moreover, different vehicles or the same vehicle at different times require different charging voltage / current, and the wireless charging system needs to meet the different charging voltage / current requirements of the vehicle according to the vehicle BMS instructions. Contents of the invention [0004] The m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/122B60L53/22
CPCB60L53/122B60L53/22Y02T10/72Y02T10/70Y02T10/7072Y02T90/14
Inventor 刘玮罗勇胡超杨进陈振伟梁明
Owner ZTEV
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