KEYFOB PROXIMITY THEFT NOTIFICATION
First Claim
1. A method of providing a notification for a vehicle having a passive keyless (PK) system that includes a vehicle transceiver (VT) carried by the vehicle and a portable keyfob, comprising the steps of:
- a) sending a vehicle challenge signal from the VT;
b) receiving from the keyfob a valid first response to the vehicle challenge signal;
c) carrying out a vehicle function in response to a command received from the PK system following receipt of the valid first response signal;
d) determining an absence of the keyfob within a vehicle passenger compartment of the vehicle after the vehicle is started; and
e) providing a notification in response to the determination of the keyfob'"'"'s absence.
3 Assignments
0 Petitions
Accused Products
Abstract
A method of providing a notification following a passive, keyless start of a vehicle when a keyfob for the vehicle is not within a passenger compartment of the vehicle. Where a motor is started using a passive keyless start (PKS) system having a keyfob transceiver within the keyfob and a vehicle transceiver (VT) within the vehicle, the absence of the keyfob may be determined by the failure to receive an accurate response signal from the keyfob transceiver following the transmission of a vehicle challenge signal from the vehicle transceiver. Upon this determination, a notification may be provided directly or indirectly to the vehicle user via a wireless carrier system.
42 Citations
17 Claims
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1. A method of providing a notification for a vehicle having a passive keyless (PK) system that includes a vehicle transceiver (VT) carried by the vehicle and a portable keyfob, comprising the steps of:
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a) sending a vehicle challenge signal from the VT; b) receiving from the keyfob a valid first response to the vehicle challenge signal; c) carrying out a vehicle function in response to a command received from the PK system following receipt of the valid first response signal; d) determining an absence of the keyfob within a vehicle passenger compartment of the vehicle after the vehicle is started; and e) providing a notification in response to the determination of the keyfob'"'"'s absence. - View Dependent Claims (2, 3, 4, 5, 6, 7, 15, 16)
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8. A method of providing a notification following a passive, keyless start of a vehicle when a keyfob for the vehicle is not within a passenger compartment of the vehicle, comprising the steps of:
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a) starting a motor of a vehicle using a passive keyless start (PKS) system; b) determining an absence of the keyfob within a vehicle passenger compartment after the motor is started; and c) providing a notification in response to the determination of the keyfob'"'"'s absence from the vehicle via a wireless carrier system using a vehicle telematics unit carried by the vehicle. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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17. A system of vehicle theft notification, comprising:
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a) a passive keyless start (PKS) system of a vehicle, the PKS system comprising; 1) a vehicle transceiver (VT); and 2) a vehicle keyfob having a keyfob transceiver (KT);
said VT and said KT capable of wirelessly communicating with each other to passively start the vehicle, and wherein the transceivers are capable of wirelessly communicating at least once after the vehicle is started to validate the presence of the keyfob within a passenger compartment of the vehicle;b) at least one vehicle system module (VSM) able to detect a vehicle sensor input associated with vehicle movement; and c) a vehicle telematics unit (VTU) carried by the vehicle able to wirelessly transmit a notification of the absence of the keyfob from within the vehicle when after the passive keyless start vehicle movement has been detected and there is a failure to validate the presence of the keyfob within the passenger compartment within a selected amount of time.
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Specification