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On-vehicle electronic control apparatus with timer-based power supply

  • US 7,155,323 B2
  • Filed: 12/18/2003
  • Issued: 12/26/2006
  • Est. Priority Date: 01/21/2003
  • Status: Expired due to Fees
First Claim
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1. An electronic control apparatus to be mounted in an automotive vehicle having a battery and an ignition key switch to switch on/off electric power of the battery, comprising:

  • an auxiliary circuit connected to the battery so as to restlessly receive the electric power from the battery and formed to have a timer for restlessly executing a timer counting operation to count a predetermined timer activation time; and

    a main circuit formed to be activated by the electric power from the battery and to execute predetermined processing only when the predetermined timer activation time has been counted by said auxiliary circuit or the ignition key switch is turned on.

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