Electric vehicle and wireless charging method, device and system thereof

A wireless charging and electric vehicle technology, applied in electric vehicle charging technology, electric vehicles, charging stations, etc., can solve the problem of low wireless charging efficiency, and achieve the effect of avoiding the reduction of charging efficiency and optimizing charging efficiency.

Active Publication Date: 2021-10-29
VOYAH AUTOMOBILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides an electric vehicle and its wireless charging method, device and system to solve or partially solve the technical problem that the current wireless charging efficiency of electric vehicles is not high

Method used

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  • Electric vehicle and wireless charging method, device and system thereof
  • Electric vehicle and wireless charging method, device and system thereof
  • Electric vehicle and wireless charging method, device and system thereof

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Embodiment Construction

[0035] In order to enable those skilled in the technical field to which the application belongs to understand the application more clearly, the technical solutions of the application will be described in detail below through specific embodiments in conjunction with the accompanying drawings. Throughout the specification, unless otherwise specified, terms used herein should be understood as commonly used in the art. Therefore, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, this specification shall take precedence. Unless otherwise specified, various equipment used in the present invention can be purchased from the market or prepared by existing methods.

[0036] Studies have shown that the physical separation of the transmitting coil and receiving coil must lead to their offset in the X and Y directions. At present, t...

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Abstract

The invention discloses a wireless charging method for an electric vehicle. The wireless charging method comprises the steps of acquiring load voltage of a power battery in the charging process of the electric vehicle; determining a target charging height according to the load voltage and a mapping relation of suspension height-voltage-charging efficiency; the target charging height being the suspension height corresponding to the highest charging efficiency under the load voltage; sending the target charging height to a suspension assembly, and the suspension assembly being used for adjusting the vehicle body height of the electric vehicle according to the target charging height. According to the method, it is guaranteed that the electric vehicle can always match the charging height with the optimal efficiency in the whole charging process, and then the overall charging efficiency is optimized.

Description

technical field [0001] The present application relates to the technical field of new energy vehicles, in particular to an electric vehicle and its wireless charging method, device and system. Background technique [0002] Electric vehicle wireless charging belongs to non-conductive charging. Through the coupling of the primary and secondary coils, the alternating current of the grid is finally converted into direct current to charge the power battery. Wireless charging eliminates the need for users to plug and unplug the gun. After the automatic parking system is combined, the user only needs to set the charging settings and turn on the parking function to realize the automatic parking and charging of the vehicle, bringing a very good experience. [0003] One of the core indicators of the wireless charging system is the charging efficiency. High charging efficiency means short charging time, less thermal damage to the system, and better overall performance. Since the wirele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/12B60L53/62B60L53/60B60G17/018
CPCB60L53/12B60L53/62B60L53/60B60G17/018B60G2500/30B60L2240/427Y02T10/70Y02T10/7072Y02T90/12Y02T90/14
Inventor 潘志强张明黄敏
Owner VOYAH AUTOMOBILE TECH CO LTD
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