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Automotive motion recorder

  • US 5,445,024 A
  • Filed: 09/07/1993
  • Issued: 08/29/1995
  • Est. Priority Date: 09/07/1993
  • Status: Expired due to Fees
First Claim
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1. A method to provide vehicle impact data, comprising:

  • A. providing a motion recorder comprising;

    a case;

    a first accelerometer oriented to sense acceleration in the direction of vehicle travel;

    a second accelerometer oriented to sense acceleration perpendicular to the direction of travel;

    a speed sensor to sense vehicle speed;

    first means for transferring acceleration data from both accelerometers to a circular non-volatile memory circuit when the speed sensor senses a speed above a preset value;

    second means for transmitting date/time data to the memory;

    third means for transmitting vehicle speed data from the speed sensor to the memory;

    whereby the accelerometers, speed sensor, and first, second and third means are located in the case;

    B. attaching the recorder to the vehicle, the vehicle further comprising either an automobile, motorcycle, truck or bus equipped with an antilock brake system; and

    ,C. subsequent to vehicle impact, removing the recorder from the vehicle, connecting the recorder and using a predetermined access code for retrieving the acceleration data from both accelerometers, the vehicle speed and date/time data for subsequent analysis.

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