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A positioning system and positioning method for wireless charging of electric vehicles

An electric vehicle and positioning method technology, which is applied in electric vehicle charging technology, electric vehicles, charging stations, etc., can solve the problems of no wireless charging positioning method, affecting the efficiency of charging and the feasibility of fast charging, etc., so as to improve the charging efficiency. The feasibility of fast charging, the simple and reliable positioning method, and the effect of improving positioning accuracy

Active Publication Date: 2021-12-07
上海万暨电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the on-board coil of the electric vehicle and the transmitting coil on the charging station are not accurately positioned, it will greatly affect the charging efficiency and the feasibility of fast charging
[0004] Therefore, in the field of electric vehicle wireless charging, how to realize the precise positioning between the transmitting coil and receiving coil of the electric vehicle wireless charging system with a simple, feasible and high-precision positioning device, there is no relatively simple and feasible wireless charging positioning method at present. Appear

Method used

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  • A positioning system and positioning method for wireless charging of electric vehicles
  • A positioning system and positioning method for wireless charging of electric vehicles
  • A positioning system and positioning method for wireless charging of electric vehicles

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Embodiment 1

[0069] The present invention includes a positioning system for wireless charging of electric vehicles, including:

[0070] At least three transmitting antennas 1 are respectively laid on the edge of the ferrite 10 at the ground end. The ferrite 10 is rectangular, and each transmitting antenna 1 is arranged in the middle of each side of the rectangle. At least three transmitting antennas 1 take turns Transmitting a magnetic field signal with a fixed frequency;

[0071] At least two receiving sensors 2 are symmetrically arranged at the rear of the electric vehicle 20, and the two receiving sensors 2 are used to receive the magnetic field signal, and calculate the coordinates and yaw angle of the electric vehicle 20 according to the signal strength indication value of the magnetic field signal to determine Charging locations for electric vehicles.

[0072] Through the above-mentioned technical solution of the positioning system for wireless charging of electric vehicles, such as...

Embodiment 2

[0084] The present invention also includes a positioning method for wireless charging of electric vehicles, which includes the following steps:

[0085] Step S1, providing at least three transmitting antennas to transmit a fixed-frequency magnetic field signal in turn;

[0086] Step S2, provide at least two receiving sensors to receive the magnetic field signal, and calculate the coordinates and yaw angle of the electric vehicle according to the signal strength indication value of the magnetic field signal, so as to determine the charging position of the electric vehicle.

[0087] Through the above-mentioned technical solution of the positioning method for wireless charging of electric vehicles, such as Figure 4 As shown, the positioning method can accurately determine the charging position of the electric vehicle, improve the positioning accuracy of the transmitting antenna and receiving sensor, and the positioning method is simple and reliable, and easy to promote.

[0088...

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Abstract

The present invention relates to the technical field of wireless charging, and in particular to a positioning system and positioning method for wireless charging of electric vehicles, which includes at least three transmitting antennas, which are respectively laid on the edge of the ferrite at the ground end, and the ferrite is Rectangular, each transmitting antenna is set in the middle of each side of the rectangle, at least three transmitting antennas transmit a fixed frequency magnetic field signal in turn; at least two receiving sensors are symmetrically arranged at the rear of the electric vehicle, and two receiving sensors It is used to receive the magnetic field signal, and calculate the coordinates and yaw angle of the electric vehicle according to the signal strength indication value of the magnetic field signal, so as to determine the charging position of the electric vehicle. Beneficial effects: the positioning accuracy of the transmitting antenna and the receiving sensor is improved, the charging position of the electric vehicle can be accurately determined, the charging efficiency of the electric vehicle and the feasibility of fast charging are improved, the scheme is simple and reliable, and easy to popularize.

Description

technical field [0001] The invention relates to the technical field of wireless charging, in particular to a positioning system and a positioning method for wireless charging of electric vehicles. Background technique [0002] With the rapid development of electric vehicles, the charging problem of electric vehicles needs to be solved urgently. Electrical charging methods for power batteries include contact charging and wireless charging. Wireless charging facilitates the realization of unmanned automatic charging and mobile charging, and provides effective utilization of energy. [0003] In the prior art, wireless charging uses radio wave and electromagnetic induction technology. At present, during the wireless charging process of electric vehicles, parking positioning charging is one of the key technologies in wireless charging technology for electric vehicles. If the on-board coil of the electric vehicle and the transmitting coil on the charging station are not accurat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L53/36B60L53/38B60L53/126H02J7/02H02J50/20H02J50/23H02J50/90
CPCB60L53/126B60L53/36B60L53/38H02J50/20H02J50/23H02J50/90Y02T10/70Y02T10/7072Y02T90/12Y02T90/14
Inventor 杨国勋徐诗卉寇秋林
Owner 上海万暨电子科技有限公司