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Position detection device for dynamic wireless charging electric automobile based on directional PCB board carrying antenna

A PCB board, electric vehicle technology, applied in electric vehicles, antenna grounding devices, electric vehicle charging technology, etc., can solve the problems of low detection accuracy, detection of magnetic field leakage, etc., and achieve good impedance matching, good directionality, and good effect. Effect

Active Publication Date: 2019-11-15
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the existing problems of low detection accuracy and leakage of the detection magnetic field, the present invention provides a position detection device for a dynamic wireless charging electric vehicle based on a directional PCB onboard antenna. The present invention provides the following technical solutions:

Method used

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  • Position detection device for dynamic wireless charging electric automobile based on directional PCB board carrying antenna
  • Position detection device for dynamic wireless charging electric automobile based on directional PCB board carrying antenna
  • Position detection device for dynamic wireless charging electric automobile based on directional PCB board carrying antenna

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specific Embodiment 1

[0034] A position detection device for a dynamic wireless charging electric vehicle based on a directional PCB onboard antenna, including a position detection device for a dynamic wireless charging electric vehicle based on a directional PCB onboard antenna, a radio frequency transmitting module, a radio frequency receiving module, an energy converter, and a vehicle control Device, touch controller, vehicle monitoring board, data transmission module, ZigBee module and magnetic field detector, described radio frequency transmitting module and radio frequency receiving module are all connected with directional PCB onboard antenna;

[0035] Among them, the radio frequency transmitting module and the radio frequency receiving module are mainly composed of radio frequency circuits designed by TI's cc2500 chip, and the radio frequency transmitting and receiving modules are connected to the designed directional PCB onboard antenna. The radio frequency transmitting module and the direc...

specific Embodiment 2

[0039] figure 1 and figure 2 It is the front view and back view of the designed directional board antenna simulation. The front side of the onboard antenna is composed of three guiding elements, reflecting element, excitation feeder and GND grounding layer, and the back is composed of reflecting element, antenna balun and GND grounding layer. In actual engineering, the GND ground plane is connected to the chassis of the electric vehicle to shield the rear-end signal of the antenna, that is, the antenna signal only propagates in the space in the positive direction of the z-axis. Set the length of the reflector to 44.96mm and the width to 3.05mm, the length of the guide to 34.29mm and the width to 3.81mm, set the distance between each guide to 15.49mm, and the distance between the reflector and the GND ground layer to 16.00mm, set The working frequency of the antenna is 2.4GHz, and the radiation pattern of the antenna is obtained through simulation as follows: image 3 shown...

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PUM

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Abstract

The invention discloses a position detection device for a dynamic wireless charging electric automobile based on a directional PCB board carrying antenna. The position detection device comprises a directional PCB board carrying antenna, a radio frequency emitting module, a radio frequency receiving module, an energy converter, a whole vehicle controller, a touch controller, a vehicle-mounted monitoring board, a data transmission module, a ZigBee module and a magnetic field detector, wherein the radio frequency emitting module and the radio frequency receiving module are connected to the directional PCB board carrying antenna. Through simulation, it can be seen that the resonance frequency point of the position detection device is stable to be about 2.4 GHz, the impedance matching performance is good, it can be seen from a radiation pattern that the designed antenna has good directionality, and the maximum gain can reach 6.94 dBi. According to the position detection device, under the condition that the total gain is not influenced, scattering of the transverse signal is limited to a great extent, and the effect is good.

Description

technical field [0001] The invention relates to the technical field of electric vehicle position detection, and relates to a position detection device for a dynamic wireless charging electric vehicle based on a directional PCB onboard antenna. Background technique [0002] Dynamic wireless charging technology is one of the emerging power transmission technologies. Compared with the mature static wireless charging technology and traditional wired charging technology, the dynamic wireless charging technology gets rid of the shackles of the original charging pile, and even realizes the application of charging while driving electric vehicles. This not only saves the time wasted when the electric vehicle is parked and charged, but also reduces the number of battery packs to a certain extent and greatly improves its cruising range. Traditional electric vehicles carry many battery packs. Due to the current battery technology in our country, there are still many problems, and the b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/12B60L53/38G01S1/04G01S1/08H01Q19/30H01Q19/13H01Q1/38H01Q1/42H01Q1/48H01Q1/50H01Q1/32
CPCB60L53/12B60L53/38G01S1/042G01S1/08H01Q19/30H01Q19/132H01Q1/38H01Q1/42H01Q1/48H01Q1/50H01Q1/3233Y02T90/16Y02T10/70Y02T90/14Y02T10/7072Y02T90/12
Inventor 朱春波王得安逯仁贵马东王霆阳
Owner HARBIN INST OF TECH