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Information updating method of vehicle-mounted control apparatus, update information communication system, vehicle-mounted control apparatus, and information management base station apparatus

  • US 8,290,659 B2
  • Filed: 12/15/2003
  • Issued: 10/16/2012
  • Est. Priority Date: 12/15/2003
  • Status: Active Grant
First Claim
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1. An information updating method for vehicle-mounted control units, said method comprising:

  • when an updating event occurs, an information management base station transmitting a query to all vehicles under its management regarding whether or not a vehicle-mounted control unit that needs to be updated by the information management base station unit is present thereon;

    said information management base station selecting vehicles to be updated based on the replies from the individual vehicles; and

    said information management base station updating only the selected vehicles by updated contents divided into packets being transmitted to respective vehicle-mounted control units.

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