Complex Logic

Model complex logic using Stateflow® diagrams

To model complex logic in a Simulink® model, consider using Stateflow software.

Stateflow extends Simulink with a design environment for developing state transition diagrams and flow charts. Stateflow provides the language elements required to describe complex logic in a natural, readable, and understandable form. It is tightly integrated with MATLAB® and Simulink products, providing an efficient environment for designing embedded systems that contain control, supervisory, and mode logic.

Topics

Model Finite State Machines (Stateflow)

Model dynamic systems as finite state machines in Stateflow.

Model an Assembly Line Feeder (Stateflow)

Program a chart based on the operating modes of a feeder system.

Schedule Execution of Simulink Subsystems (Stateflow)

Design ladder logic, loop, and temporal logic scheduler algorithms.

Model Reactive Systems in Stateflow (Stateflow)

Basic approach for modeling event-driven systems with Stateflow charts.

Modeling Guidelines for Stateflow Charts (Stateflow)

Efficiently model charts by using states, transitions, and events.

Speed Up Simulation (Stateflow)

Reduce simulation time for large models.

Related Information

Featured Examples

Detect Faults in Aircraft Elevator Control System

Detect Faults in Aircraft Elevator Control System

Design a fault detection, isolation, and recovery (FDIR) application for a pair of aircraft elevators controlled by redundant actuators. This model uses the same fault detection control logic as the Avionics subsystem of the Aerospace Blockset™ example HL-20 Project with Optional FlightGear Interface (Aerospace Blockset).

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Implement an Automatic Transmission Gear System by Using the duration Operator

Implement an Automatic Transmission Gear System by Using the duration Operator

Models an automotive transmission system by using the Stateflow® temporal logic operator duration to automatically shift gears based on the vehicle's throttle requirements and speed. For more information, see Control Chart Execution by Using Temporal Logic (Stateflow).

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Model a Power Window Controller

Model a Power Window Controller

Model an automotive power window system using Model-Based Design with Simulink®, Stateflow®, Fixed-Point Designer™ and DSP System Toolbox™. The power window system models the response of the passenger window to the driver or passenger window controls. To lower cost, the system uses inputs from current sensors instead of position sensors.

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Model a Distributed Traffic Control System by Using Messages

Model a Distributed Traffic Control System by Using Messages

Model a distributed control system for an intersection of one-way roads. To coordinate the state of the traffic lights, the two charts communicate with each other by using messages. The design of the two charts is identical.

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