Systems and methods for circuit failure protection
AssigneeHamilton Sundstrand Corporation
InventorsKamaraj Thangavelu, Matthew Ryan Hasseman, Jeffrey D. Myroth, Ryan Thomas Carter
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Abstract
In accordance with at least one aspect of this disclosure, a controller for an aircraft electrical system includes, a software safe module. In embodiments, the software safe module can be configured to determine whether there was a sudden power failure upon controller initialization, and cause operation of the controller in a software safe mode if there was a sudden power failure such that manual intervention is required to leave the software safe mode to prevent repetitive power failure of the controller.
Claims20
A controller for an aircraft electrical system, comprising:
- a software safe module configured to:
- determine whether there was a sudden power failure upon controller initialization;
- and
- cause operation of the controller in a software safe mode if there was a sudden power failure such that manual intervention is required to leave the software safe mode to prevent repetitive power failure of the controller.
A computer implemented method comprising:
- detecting whether a controller power is within limits;
- initializing a controller if the controller power is within limits;
- checking for a data flag indicative of a sudden power failure in a memory;
- and
- booting the controller in a software safe mode to prevent repetitive power failure if a data flag indicative of a sudden power failure is detected in the memory, wherein the software safe mode cannot be exited without manual intervention.
A non-transitory computer readable medium comprising computer executable instructions configured to cause a computer to execute a method, the method comprising:
- detecting whether a controller power is within limits;
- initializing a controller if the controller power is within limits;
- checking for a data flag indicative of a sudden power failure in a memory;
- and
- booting the controller in a software safe mode to prevent repetitive power failure if a data flag indicative of a sudden power failure is detected in the memory, wherein the software safe mode cannot be exited without manual intervention.
Dependencies are inferred from the claim text.