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Radome for radar sensor of motor vehicle and motor vehicle

A radar sensor and radar radome technology, which is applied to antennas, antennas, antenna parts and other directions suitable for movable objects, can solve problems such as loss, large transmission of electromagnetic energy of radar beams, and installation limitations of radar sensors. Achieve the effect of reducing reflected energy loss and improving transmission

Pending Publication Date: 2021-05-04
AUDI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem here is that the lacquer and / or plastic used on the one hand lead to very large losses in the transmission of the electromagnetic energy of the radar beam
This in turn leads to loss of radar sensor performance and vehicle functionality using radar data from the radar sensor
On the other hand, if this limitation on performance is not desired, then it places limitations on the mounting of radar sensors behind painted surfaces or generally behind plastic or other radomes

Method used

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  • Radome for radar sensor of motor vehicle and motor vehicle
  • Radome for radar sensor of motor vehicle and motor vehicle

Examples

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Effect test

Embodiment Construction

[0018] figure 1 A schematic diagram of a motor vehicle 1 according to the invention is shown. Motor vehicle 1 has a front bumper 2 and a rear bumper 3 , which bumper is composed, for example, of a plurality of bumper parts. In this case, three radar sensors 4 are concealed in each case in bumpers 2 , 3 . Here are small-scale radar sensors 4 realized in semiconductor technology, in particular CMOS technology, whose radar radiation is detected through the corresponding outer bumper part 5 as part 6 of motor vehicle 1, so that The bumper part 5 at least partially functions as a radome for the radar sensor 4 .

[0019] figure 2 The construction of the bumper part 5 functioning as the radome 7 is shown in more detail. The optically opaque base body 8 of the bumper part 5 initially comprises a plastic 9 , and the bumper part 5 is mainly made of plastic. The plastic part 9 facing the outside 10 is covered by a varnish layer 11 , here by a metallic varnish, which produces a meta...

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Abstract

The invention relates to a radome (7) for a radar sensor (4) of a motor vehicle (1). The radome (7) comprises at least one base body (8) which faces the radar sensor (4) and is to be transmissive, and the base body is made of at least one optically opaque material which has a first dielectric constant at least at the side facing away from the radar sensor (4), wherein the radome (7) also has an optically transparent film (12) which is applied to the main body (8) at the side facing away from the radar sensor (4) at least in the transmitted region and has a second dielectric constant which lies between the first dielectric constant and the dielectric constant of the air.

Description

technical field [0001] The invention relates to a radome for a radar sensor of a motor vehicle, which has at least one permeable base body facing the radar sensor, which is made of at least one light-opaque / optical non-transparent material, which The material has a first dielectric constant at least on the side facing away from the radar sensor. The invention also relates to a motor vehicle. Background technique [0002] Radar sensors are frequently used for environment detection in modern motor vehicles. In order to protect the radar sensor and also for design reasons, it is known to mount the radar sensor hidden behind other components of the motor vehicle, which then act as a radome for the radar sensor. For example, it is known to install at least one radar sensor in a bumper and / or in a door of a motor vehicle behind radar-transparent windows. Besides the fact that such parts, especially bumpers and radar-penetrable windows, are usually made of plastic, it is also kn...

Claims

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Application Information

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IPC IPC(8): H01Q1/42H01Q1/32G01S7/03G01S13/931
CPCH01Q1/422H01Q1/3233G01S7/03G01S13/931G01S7/027H01Q1/3283
Inventor M·施文科特
Owner AUDI AG
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