Hti Ip, LLC

Verizon Telematics Inc.

Dedeepya Kalinadhabhotla

Alex D Berkobin

Sneha Akula

Benjamin Hamby

Pankaj Sharma

A device may receive a first type of measurement associated with a vehicle and receive a second type of measurement associated with a power source connected to the vehicle. The second type of measurement may be different than the first type of measurement. The device may determine a key-on or a key-off status of the vehicle based on the first type of measurement and the second type of measurement without communicating with a vehicle diagnostic system associated with the vehicle. The key-off status may correspond to an engine of the vehicle being powered off and the key-on status may correspond to the engine of the vehicle being powered on. The device may initiate communications with the vehicle diagnostic system based on determining the key-on status.

Accelerometer and voltage based key-on and key-off detection

Examples of a telematics device are configured to connect to an on-board diagnostics port of a vehicle and collect telematics data related to the vehicle. The telematics device examples perform processes to determine whether a time value received by an external source is accurate with respect to a variance value. Based on the determination, a clock time value may be either modified based the accurate time value received from the external source or left unmodified. In addition, an example provides a time gap determination that accounts for time between a reconnection of the telematics device to a vehicle diagnostics port and receipt of an external time value.

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Atlanta, GA, United States of America

Dedeepya Kalinadhabhotla