METHOD AND DEVICE FOR ASCERTAINING A MISALIGNMENT OF A RADAR SENSOR OF A VEHICLE

摘要

A method for ascertaining a misalignment of a radar sensor of a vehicle ascertains a misalignment angle of the misalignment using a weighted averaging of calculated differences between first and second angles of radar reflectors relative to various axes. Also described is a device for ascertaining this misalignment.

主权项

1. A method for ascertaining a misalignment of a radar sensor of a vehicle, comprising:
measuring distances between the radar sensor and each individual radar reflector of a first plurality of radar reflectors spaced apart from each other at each individual measuring point of a second plurality of measuring points spaced apart from each other; measuring first angles between an axis of the radar sensor along which a radar emission takes place, and the radar reflectors at each measuring point; creating a virtual map on the basis of the measured distances including measuring positions that correspond to positions of the measuring points and radar reflector positions that correspond to positions of the radar reflectors; calculating at the measuring positions second angles between the radar reflector positions and reference axes defined on the virtual map which correspond to a vehicle longitudinal axis of the vehicle; calculating differences between angles of the first angles and angles of the second angles respectively; and ascertaining a misalignment angle of the misalignment using a weighted averaging of the calculated differences.