Patent ID: 8354915
Filing Date: 2013-01-15
Classification: B60R

Abstract:
1. A method for determining whether or not passive entry of a vehicle is permitted, comprising: allocating separate channels for each authorized key FOB for the vehicle; detecting an indication of manual entry of the vehicle; outputting, in response to the detecting of the indication of manual entry into the vehicle, a challenge from a transmitter of a passive entry system provided in the vehicle; receiving the challenge by more than one key FOB in a vicinity of the vehicle, and outputting a respective remote keyless entry response at an assigned frequency channel for each respective key FOB; receiving the remote keyless entry responses at a receiver of the passive entry system, at each respective channel allocated for the respective key FOBs; and determining whether or not any of the respective key FOBs are assigned to authorized users of the vehicle, and if so, setting a vehicle door in an unlocked state to allow entry into the vehicle, wherein the receiving the remote keyless entry responses at a receiver step comprises: setting a scan frequency of the receiver to a first channel assigned to a first authorized key FOB that corresponds to a first authorized key FOB that has most accesses to the vehicle over a predetermined time period in the past; and thereafter, setting the scan frequency of the receiver to a second channel assigned to a second authorized key FOB that corresponds to a second authorized key FOB that has the second-most accesses to the vehicle over the predetermined time period in the past.