Passive entry cell phone and method and system therefor

摘要

A system for a vehicle including: a bluetooth receiver configured to be installed in a vehicle and connected with an electronic system of the vehicle; and a phone including a long-range radio frequency (RF) transceiver configured to transmit signals to and receive signals from a cellular network and a bluetooth transmitter configured to communicate with the bluetooth receiver in the vehicle within a predetermined range.

主权项

1. A system for a vehicle, comprising:
a BLUETOOTH® receiver configured to be plugged into a telematics port of a vehicle and connected with an electronic system of the vehicle, wherein the electronic system of the vehicle includes a BLUETOOTH® passive entry system; and a phone including a long-range radio frequency (RF) transceiver configured to transmit signals to and receive signals from the electronic system of the vehicle through a cellular network and a BLUETOOTH® transmitter configured to communicate with the BLUETOOTH® receiver in the vehicle within a predetermined range, wherein the predetermined range is a distance for dock lock and unlock in the BLUETOOTH® passive entry system and the predetermined range is calibrated using received signal strength indication (RSSI), and when the phone is within the predetermined range, a first transmission provided from the phone via BLUETOOTH® is encrypted, the first transmission including the phone's ID, the ID being stored in a memory of a control unit of the vehicle, when a second transmission is provided from the phone via BLUETOOTH®, the second transmission is encrypted and includes the ID and a vehicle command, and when the second transmission is received, the ID is compared to the ID stored in the memory and if there is a match, the vehicle command is communicated to the control unit.