CAMP4 Therapeutics Corporation
Systems and Methods for Detection of Vehicle Bus Protocol Using Signal Analysis

Abstract:

Embodiments of the invention include a vehicle telematics device that performs vehicle CAN bus discovery using bit timing analysis. In an embodiment, the vehicle telematics device enters a vehicle CAN bus protocol discovery mode, samples a vehicle CAN bus signal, performs bit timing analysis of the CAN bus signal, calculates a BAUD rate of the vehicle CAN bus based on the bit timing analysis, determines a data packet format of data packets on the vehicle CAN bus, and identifies a vehicle CAN bus protocol from a plurality of vehicle CAN bus protocols based on the calculated BAUD rate and data packet format.