Electronic airbag control unit having an autonomous event data recorder
First Claim
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.
1 Assignment
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Accused Products
Abstract
Embodiments of the present invention relate generally to an electronic control unit for an airbag, said control unit having a data recorder unit that has a volatile memory, a nonvolatile memory and a copy circuit. The copy circuit is designed to copy data from the volatile memory to the nonvolatile memory during a second operating phase of the control unit. A protocol unit designed to record vehicle and/or accident data in the volatile memory is arranged in the data recorder unit during a first operating phase of the control unit. A first power supply unit 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 is connected to the data recorder unit and supplies the latter with power.
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Citations
10 Claims
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1. An electronic control unit for an airbag, said control unit having:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification