Patent attributes
Disclosed are a vehicle access system and method with at least two sets of a receiver and a transmitter, each set configured to receive a type of wireless communication signal from a corresponding transmitter of a user device, and the type of wireless communication signal received by a set is different from that received by at least another set; a signal module communicating with each set, each signal module configured to process the wireless communication signals received from the set to determine an initial location of the user device relative to the vehicle; a localization module communicating with the signal modules and configured to determine a final location of the user device relative to the vehicle, based on the initial locations determined by the signal modules; and a controller configured to lock or unlock a door of the vehicle based on the determined final location of the user device.
