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Method and apparatus for rewriting data of control unit for vehicle

  • US 6,546,321 B1
  • Filed: 08/18/2000
  • Issued: 04/08/2003
  • Est. Priority Date: 08/25/1999
  • Status: Expired due to Fees
First Claim
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1. A method of rewriting data of a control unit for a vehicle which stores learning data for vehicle control in a control memory which is electrically erasable and programmable, comprising the steps of:

  • inputting information of parts that have been exchanged among parts of sensors outputting detection signals to said control unit for the vehicle and among parts controlled by said control unit for the vehicle;

    judging learning data which correlate to said parts exchanged among learning data for vehicle control stored in said control memory;

    reading an initial value of learning data correlating to said parts exchanged out of initial values pre-stored for each of said learning data; and

    rewriting to said initial value, said learning data which correlate to said parts exchanged among the learning data for vehicle control stored in said control memory.

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