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Method for diagnosing a network

  • US 6,795,941 B2
  • Filed: 12/21/2000
  • Issued: 09/21/2004
  • Est. Priority Date: 12/21/2000
  • Status: Expired due to Fees
First Claim
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1. A method for diagnosing a network having a computer in communication with at least one controllable CAN-based microcontroller in a sensing device, the method comprising the steps of:

  • (a) allowing each microcontroller to generate and store network communication errors in at least one counter;

    (b) if the counter reaches a marginally critical value in a particular microcontroller, allowing the particular microcontroller to notify the computer, wherein the particular microcontroller continues to communicate with the computer; and

    (c) if the counter reaches a critical value in a particular microcontroller, allowing the particular microcontroller to notify the computer and disconnect from the network, wherein the particular microcontroller does not continue to communicate with the computer.

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