Patent ID: 11933915
Assignee: MAGNA CLOSURES INC.
Field: Measurement (Instruments)
Classification: CPC G  B  E | IPC B  E  G

Claim 12:
13. A method of controlling movement of a closure member using a radar detection system for user-activated, non-contact operation of the closure member coupled to a vehicle body of a vehicle, comprising:
transmitting waves using least one transmit antenna of at least one radar sensor assembly;
receiving the waves after reflection from an object in a detection zone and using at least one receive antenna of the at least one radar sensor assembly coupled to the vehicle body;
outputting a sensor signal based on the waves received by the at least one receive antenna;
transforming the sensor signal from a time domain representation to a frequency domain representation of the sensor signal and analyzing the frequency domain representation of the sensor signal to determine a speed and an amplitude from the sensor signal corresponding to motion characteristics of the object;
analyzing the speed and the amplitude to determine when the object is performing an activation gesture in the detection zone; and
controlling movement of the closure member when the object is determined to be performing the activation gesture in the detection zone.