| 摘要 |
A vehicle remote function system is provided for determining locations of a fob 26 relative to a vehicle 12. The system includes a controller or ECU 24 configured for communication with antennas 22 mounted at different locations in the vehicle 12, the controller 24 for use in determining locations of the fob 26 based on ultra-wide band wireless signals 28 transmitted between the antennas 22 and the fob 26. The controller 24 is configured to use a first filtering of the wireless signals 28 to determine an initial location of the fob 26, and a second filtering of the wireless signals 28 to determine a subsequent location of the fob 26. A method is also provided which includes transmitting ultra-wide band wireless signals 28 between the fob 26 and antennas 22 mounted in the vehicle 12, using a first filtering of the wireless signals 28 to determine an initial location of the fob 26, and using a second filtering of the wireless signals 28 to determine a subsequent location of the fob 26. |
