Controlling can communication in a vehicle using shifting can message reference

A system for controlling controller area network (CAN) communication in a vehicle, the system comprising:

• a plurality of electronic control units (ECUs) equipped in the vehicle;
• a plurality of CAN databases configured to store CAN message information such that each CAN database stores a unique configuration of the CAN message information;
• a plurality of sensors equipped in the vehicle communicatively coupled to the plurality of ECUs;
• and a CAN bus through which the plurality of ECUs perform CAN communication,
• wherein one or more of the plurality of ECUs is configured to establish a plurality of periodic intervals during which each ECU performs CAN communication based upon the uniquely configured CAN message information stored in a particular CAN database among the plurality of CAN databases, wherein the particular CAN database is identified by a database reference number;
• and when a subsequent interval among the plurality of periodic intervals begins:
• receive a plurality of measurement values deriving from the plurality of sensors, calculate a new database reference number using the plurality of measurement values and one or more random numbers as parameters, the new database reference number newly identifying a particular CAN database among the plurality of CAN databases, and
• perform CAN communication based upon the uniquely configured CAN message information stored in the newly identified CAN database.

A non-transitory computer readable medium containing program instructions for controlling controller area network (CAN) communication in a vehicle including a plurality of electronic control units (ECUs) and a plurality of CAN databases accessible by the plurality of ECUs, wherein the plurality of CAN databases store CAN message information such that each CAN database stores a unique configuration of the CAN message information, the program instructions when executed by one or more of the plurality of ECUs causing the one or more ECUs to:

• establish a plurality of periodic intervals during which each ECU performs CAN communication based upon the uniquely configured CAN message information stored in a particular CAN database among the plurality of CAN databases;
• wherein the particular CAN database is identified by a database reference number;
• and when a subsequent interval among the plurality of periodic intervals begins:
• receive a plurality of measurement values deriving from a plurality of sensors equipped in the vehicle, calculate a new database reference number using the plurality of measurement values and one or more random numbers as parameters, the new database reference number newly identifying a particular CAN database among the plurality of CAN databases, and perform CAN communication based upon the uniquely configured CAN message information stored in the newly identified CAN database.