Patent ID: 11940555
Assignee: ZF AUTOMOTIVE UK LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 8:
9. A method of detecting misalignment, or checking for the correct alignment, of a radar apparatus for a stationary vehicle according to claim 1, the method comprising:
the signal processing apparatus comparing the acceleration signals output for at least two axes of the first 3 axis accelerometer captured when the second part is in a first position with the acceleration output from the corresponding two axes of the second 3 axis accelerometer when the second part is in the first position to determine any misalignment of the radar sensor for pitch or roll,
the signal processing apparatus sending the position signals to the actuator to move the second part of the movable platform to a second position by rotation about one or both of the longitudinal or lateral axes of the vehicle, and
the signal processing apparatus observing at least one of the acceleration signals output for the first 3 axis accelerometer when the second part is in the second position and in the event that the signal differs from the corresponding signal captured when the second part is in the first position by an amount which does not meet a predefined allowable value determining that the radar is incorrectly aligned for yaw.