Patent ID: 11914064
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 9:
10. A system, comprising:
a processor; and
a memory for storing executable instructions, the processor programmed to execute the instructions to:
determine, via a Time-of-Flight (ToF) localization controller, that a user device is positioned at a front region of a vehicle;
calculate a distance to the user device from a combination of two ToF antennae of a ToF antenna array;
perform a 2-dimensional (2D) trilateration calculation;
evaluate a confidence metric value;
determine a position of the user device based on the confidence metric value; and
generate an unlock signal that unlocks a vehicle door;
perform a first time-of-flight check for a signal received at a first vehicle exterior antenna of the ToF antenna array;
perform a second time-of flight check for the signal received at a second vehicle exterior antenna of the ToF antenna array;
perform a third time-of-flight check for the signal received at a third vehicle exterior antenna of the ToF antenna array;
perform a fourth time-of-flight check at a plurality of vehicle interior antennae of the ToF antenna array; and
determine that the user device is localized at a 0° position with respect to a front portion of the vehicle using the first time-of-flight check, a second time-of-flight check, the third time-of-flight check, and the fourth time-of-flight check.