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Method of controlling a vehicle safety device

  • US 5,475,269 A
  • Filed: 09/20/1993
  • Issued: 12/12/1995
  • Est. Priority Date: 09/25/1992
  • Status: Expired due to Fees
First Claim
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1. A method of controlling a vehicle safety device, comprising:

  • detecting acceleration acting on a vehicle and generating corresponding acceleration data;

    judging whether or not a vehicle collision has occurred in accordance with the acceleration data;

    outputting an operation instruction signal in response to said judging;

    operating (i) a main switcher in response to the operation instruction signal, and (ii) a safety switch in response to an impact of the vehicle;

    detecting an operating condition of the safety switch;

    counting a time period during which (i) the operation instruction signal is being output, and (ii) the safety switch is detected as being in an ON-state;

    providing the counted time period as an electric current supplying time period; and

    turning off the main switcher when the electric current supplying time period reaches a preset time period.

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