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Expanded protocol adapter for in-vehicle networks

  • US 9,158,723 B2
  • Filed: 07/30/2012
  • Issued: 10/13/2015
  • Est. Priority Date: 08/30/2000
  • Status: Expired due to Term
First Claim
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1. A protocol adapter for wirelessly transferring diagnostic signals between a vehicle network and a computer, said protocol adapter comprising:

  • said protocol adapter is for transferring diagnostic signals between a vehicle network and a computer that is a lap-top or bench top computer where said protocol adapter is used as a diagnostic tool to bridge the computer to a vehicle network wherein said protocol adapter wirelessly performs ECU fault code interrogation, communication with a remote network, vehicle maintenance status checks or trip performance data downloads, and improved asset control, logistics and inventory management, diagnostic support and maintenance scheduling;

    a plurality of electrical circuits and an RS232 bus, said circuits being capable of operating in more than one protocol, said circuits including a voltage translator for translating a voltage so that the protocol adapter operates in a pass-through mode;

    a processor contained in the protocol adapter;

    a processor memory map of the processor of said protocol adapter having a bank switching feature that is used to increase the amount of usable memory beyond the amount directly addressable by the processor, wherein memory is swapped in and out of the processor memory map to provide for multiple programs to be run on said protocol adapter, wherein said bank switching feature provides for field upgrade capability wherein non-volatile memory is programmed in the field such that new software features are added in the field.

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