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Processor safety test control systems and methods

  • US 9,122,662 B2
  • Filed: 06/01/2011
  • Issued: 09/01/2015
  • Est. Priority Date: 06/01/2011
  • Status: Active Grant
First Claim
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1. A system of a vehicle, comprising:

  • first, second, and third processor modules that selectively execute a test having N test states while an ignition system of the vehicle is off,wherein N is an integer greater than one and the N test states each include;

    the first processor module setting a first output to a first predetermined value for one of the N test states;

    the second processor module setting a second output to a second predetermined value for the one of the N test states;

    the third processor module selling a third output to a third predetermined value for the one of the N test states;

    a predetermined expectation for the one of the N test states; and

    at least one of the first, second, and third processor modules indicating a fault when a fourth output is different than the predetermined expectation; and

    a control module that sets the fourth output based on the first, second, and third outputs.

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