Fault-tolerant Fuel Injection System
This model represents a simple fault tolerant fuel injection system for throttle body
fuel injection. The control algorithms are implemented in Simulink block
diagrams, and the control logic for detecting and responding to sensor
failures is implemented in a Stateflow diagram. The controller is
combined with a simple model for airflow and fuel mixing so that the
entire feedback control system can be simulated. You can simulate a sensor
failure by clicking on the series of switches to short-circuit individual sensors.
The system is designed to use redundant sensor information to accommodate
any single failure. When more than one sensor fails or when engine speed is
excessive, the fuel system is disabled for safety reasons.
To run an example simulation from this model, click on "simulation". The
scope shows both continuous signal and a discrete-event signal, showing the
response of the fuel to a sensor failure.