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ARCHITECTURE FOR SCALABLE FAULT TOLERANCE IN INTEGRATED FAIL-SILENT AND FAIL-OPERATIONAL SYSTEMS
ARCHITECTURE FOR SCALABLE FAULT TOLERANCE IN INTEGRATED FAIL-SILENT AND FAIL-OPERATIONAL SYSTEMS
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机译:集成的无故障和故障操作系统中的可扩展容错体系结构
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摘要
An integrated fail-silence and fail-operational control system includes a primary controller controlling features of devices while operating under non-fault operating conditions. A secondary controller includes a fail detector/decider module monitoring faults in the primary controller. The fail detector/decider module determines whether the fault in the primary controller is associated with a fail-silence requirement or a fail-operational requirement. If the fail detector/decider module determines the fault is a fail-silence requirement, then the fail detector/decider module actuates a shutdown command to the primary controller to shut down a feature affected by the fault where the feature becomes non-operational. If the fail detector/decider module determines that the feature associated with the fault is a fail-operational requirement, then the fail detector/decider module signals the primary controller to relinquish controls of the feature to the secondary controller. The secondary controller functions as a high assurance system for controlling the feature in a fail-operational mode.
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