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Automotive radar alignment

A technology of radar waves and alignment equipment, applied in the direction of reflection/re-radiation of radio waves, utilization of re-radiation, measurement devices, etc., which can solve problems such as being prone to errors

Active Publication Date: 2017-05-10
ROBERT BOSCH GMBH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the method described is error-prone when dealing with variants

Method used

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  • Automotive radar alignment
  • Automotive radar alignment
  • Automotive radar alignment

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Embodiment Construction

[0027] Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and arrangement of components set forth in the following description or illustrated in the following drawings. The invention is capable of other embodiments and of being practiced or being carried out in various ways.

[0028] figure 1 A vehicle radar sensor system 10 is shown comprising a radar sensor unit 12 having a radar transmitter 14 for emitting radar waves and a radar receiver 16 for receiving reflected radar waves. The radar sensor unit 12 includes an electronic control unit (ECU) 24 connected to the radar transmitter 14 and the radar receiver 16 . In one embodiment, the ECU 24 of the radar sensor unit 12 includes a diagnostic port 25 .

[0029] In some configurations, figure 1 The ECU 24 shown in includes a processor 26 having an executable alignment program stored in a non-transitory com...

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Abstract

A method and apparatus for determining misalignment of a radar sensor unit mounted to a vehicle includes providing targets on an alignment apparatus. A vehicle is located at predetermined location on a test station an exact given distance from the alignment apparatus. The actual locations and distances of the targets from each other and from radar sensor unit of the vehicle at the test station are known and pre-stored. At least one target is a greater distance from the vehicle than the other targets. The targets receive and return a radar wave from the radar sensor unit. The radar sensor unit determines locations and distances of the targets and compares with the given or actual locations and distances of the targets to determine misalignment of the radar sensor unit. A calibration program automatically calibrates azimuth and elevation to adjust for misalignment.

Description

[0001] related application [0002] This application claims priority from US Provisional Application 62 / 037,871, filed August 15, 2014, which is incorporated herein by reference in its entirety. technical field [0003] The invention relates to an automotive radar alignment method and system. Background technique [0004] There are two common methods to align a car or vehicle radar unit in an OEM's factory. The first is passive alignment on an optical basis. The second is the active alignment method, in which the radar certifies whether it is aligned or not. For the second method, a target, the corner reflector, is used. For this method, the mounting tolerances of the radar sensor unit and the mirror directly influence the result of the measurement. [0005] Another method involves mirrors with three tilt angles arranged in sequence. These three angular positions are used to determine the vertical misalignment angle of the radar. Therefore, three separate measurements ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40G01S13/93G01S13/931
CPCG01S7/4026G01S7/4052G01S13/931G01S2013/93271G01S2013/93275G01S7/4034G01S7/403G01S7/4086G01S7/4095
Inventor O.F.施温特R.黑林格
Owner ROBERT BOSCH GMBH
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