VOXX International Corporation
MULTI-SENSOR PASSIVE KEYLESS FUNCTIONALITY

Abstract:

In selected examples, a vehicle control system (VCS) includes Bluetooth beacons and an app running on a mobile device, such as a smartphone or a key fob equipped with movement sensors and a Bluetooth.RTM. transceiver. Passive keyless entry capability of the system uses received signal strength indications (RSSIs) together with movement-related indications of the movement sensors to determine when the mobile device moves away from the vehicle beyond a predetermined departure distance, and/or approaches the vehicle to within a predetermined arrival distance. When the user approaches the vehicle, the mobile device automatically transmits an arrival notification to the VCS, which automatically performs arrival actions, e.g., unlocking doors and disarming security features of the VCS/vehicle. When the user moves away from the vehicle, the mobile device automatically transmits a departures notification to the VCS, which performs departure actions, e.g., locking the vehicle and arming the security features of the VCS/vehicle.