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Fault Detection, Isolation, and Recovery

Design algorithms to identify and manage system failures

Enable your safety-critical model to recover from system failures by using redundant logic and explicit transitions for every state. When system faults occur, detect and isolate them by using SimStates. Test your model at specific fail times without rerunning the entire simulation.

Topics

Test a Chart with Fault Detection and Redundant Logic

Check the response of a chart to one or more failures.

Map Fault Conditions to Actions by Using Truth Tables

Use truth tables to map fault conditions to their consequent actions.

Design for Isolation and Recovery in a Chart

Detect system faults and recover from failure modes.

Related Information

Modeling a Fault-Tolerant Fuel Control System (Simulink)

Featured Examples

Model a Launch Abort System

Model a launch abort system. An aircraft is launched into outer space. If an anomaly or fault occurs during the launch, the operation is aborted, and the aircraft is sent back down to Earth.

Open Model

Fault Detection Control Logic in an Aircraft Elevator Control System

Design a fault detection, isolation, and recovery (FDIR) application for a pair of aircraft elevators with redundant actuators. The fault detection control logic used in this model is the same that is used in the Avionics subsystem of the Aerospace Blockset™ example entitled "NASA HL-20 with Optional FlightGear Interface."

Open Model