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Accumulated error time monitoring diagnostic control system

  • US 8,000,855 B2
  • Filed: 09/04/2008
  • Issued: 08/16/2011
  • Est. Priority Date: 06/30/2008
  • Status: Active Grant
First Claim
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1. A diagnostic system comprising:

  • N dedicated diagnostic modules that each correspond with a respective one of a plurality of control systems and that each generate status signals indicating results of respective diagnostic tests, where N is an integer value; and

    a diagnostic error time monitor that determines a first accumulated error time value corresponding to time between error events for each of said plurality of control systems based on said status signals and that selectively reports a fault to a respective one of said N dedicated diagnostic modules based on said first accumulated error time value.

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