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Electronic airbag control unit having an autonomous event data recorder

  • US 20090204295A1
  • Filed: 02/11/2008
  • Published: 08/13/2009
  • Est. Priority Date: 02/11/2008
  • Status: Active Grant
First Claim
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1. An electronic control unit for an airbag, said control unit having:

  • a data recorder unit which has a volatile memory, a nonvolatile memory and a copy circuit, the copy circuit being designed to copy data from the volatile memory to the nonvolatile memory during a second operating phase of the control unit;

    a protocol unit which is designed to record vehicle and/or accident data in the volatile memory arranged in the data recorder unit during a first operating phase of the control unit;

    a first power supply unit which is connected to the control unit and supplies the protocol unit and further components of the control unit with power; and

    a second power supply unit which is connected to the data recorder unit and supplies the latter with power.

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