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| Integrated Flight Control System Directorate | | | | | | |
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FLIGHT CONTROL | Pilot Controls | IFCS Integration | GroundTest | FLIGHT CONTROL SYSTEM: | IFCS Architecture | - Comprises of Digital Flight Control Computer, Actuators, Inertial and Air Data Sensors, Control and Test panels.
- Embedded Flight critical Software for redundancy management of actuators, inertial
and Air Data Sensors, pilot command sensors, switches and other signals.
- Developed by ADE.
| Software Development | DFCC Photograph |
- Developed using safe subset of Ada Language
- Contains Computer Software Configuration Item (CSCI) executed in all 4 channels
| ETS Photograph | -
Software Development life cycle as per DOD STD 2167A
- Includes Software Quality Assurance and Software Configuration Management to realise a safe-to-fly product
- Extensively tested, verified and validated to check the performance in sophisticated test rigs like Engineering Test Station (ETS), Mini-Bird and Iron-Bird.
- 50 hour Fault free testing completed independently by pilots
| Claw Block Diagram | - Level 1 flying qualities in operational flight envelope
- Signal processing algorithms implemented in DFCC using Ada language
- Ensure sufficient gain & phase stability margins
- Resistance to pilot induced oscillations taken in to account at the design stage
itself
- Design uses classical control, vector optimization and eigen structure assignment techniques
- Notch filters obtained for minimizing structural modes
- Computer Aided Tools and used for design and assessment of the control laws in linear and nonlinear domains
- Control laws validated using Ground based facilities Engine in Loop Simulator (ELS), Ironbird and Inflight simulators and Inflight simulators (NT-33,VISTA F-16)
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