Internal multi-axis g sensing used to align an automotive forward radar to the vehicle's thrust axis

Abstract

A motor vehicle includes a vehicle floor, a tilt sensor attached to the vehicle floor and having an output, and a forward looking radar module attached to the vehicle. The radar module includes a radar, an accelerometer; and an output from the accelerometer, and a controller that averages the tilt sensor output and the accelerometer output and determines a difference between the output averages, the controller reporting when the differences changes more than a predetermined amount. A method of calibrating the forward looking radar module, when attached to a vehicle, comprises placing the vehicle on a flat surface to determine the accelerometer pitch.

Dependencies are inferred from the claim text.