Module for monitoring vehicle operation through onboard diagnostic port

  • US 6,832,141 B2
  • Filed: 10/25/2002
  • Issued: 12/14/2004
  • Est. Priority Date: 10/25/2002
  • Status: Active Grant
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First Claim
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1. An onboard diagnostic memory module for an onboard diagnostic port of a vehicle comprising:

  • a connection to an onboard diagnostic port output of a vehicle;

    a memory for receiving and emitting recorded data from the connection to the onboard diagnostic port output of the vehicle;

    apparatus for time stamping the recorded data in the memory for receiving and emitting recorded data;

    a microprocessor responsive to operational firmware for manipulating data to and from the memory through the connection to the onboard diagnostic port output of the vehicle;

    memory operationally connected to the microprocessor for receiving the operational firmware;

    the operational firmware including;

    data receiving and recording parameters for the memory during the connection to the onboard diagnostic port output of the vehicle; and

    , discharge parameters for discharging the recorded data responsive to intelligent interrogation of a computer having a connection to the onboard diagnostic memory module; and

    , resetting parameters for a malfunction indicator light.

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