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CONTROLLER AREA NETWORK BUS MONITOR

  • US 20160197944A1
  • Filed: 08/10/2015
  • Published: 07/07/2016
  • Est. Priority Date: 01/05/2015
  • Status: Active Grant
First Claim
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1. A system to monitor a controller area network bus comprising:

  • a processor to;

    detect a message from a source electronic control unit in a vehicle;

    calculate a location of the source electronic control unit based on at least two arrival times, the arrival times indicating a distance between a first monitor and the source electronic control unit;

    detect that the message corresponds to a function controlled by a second electronic control unit; and

    generate a warning that the message from the source electronic control unit is malicious.

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