Aircraft Control TRIZ Cases

A three-mode EMA setup blocks failed flight control actuators to prevent free float, cut drag, and improve thermal management.

Separating the trailing edge into pivotable sections adds inter-section damping to suppress flutter and preserve control if the actuator fails.

Forward flight drag and reduced stabilization damp tethered payload swing during UAV winch retraction and deployment for steadier delivery.

A piston-driven spool valve refills an EHA accumulator at low fluid level, extending service life without bulky capacity or external sensors.

A piston-driven spool refill arrangement automatically replenishes EHA accumulator fluid, cutting weight, complexity, and downtime.

Autonomous control coordinates lift and pusher thrust at the transition point so eVTOL aircraft can shift smoothly between vertical and forward flight.

Real-time takeoff monitoring compares actual and reference velocity, then adjusts thrust and flap settings to keep departure within safety limits.

A spanwise hydraulic actuator with a bell-crank gives wing slats more travel in thin wings while avoiding front spar web penetration.

A single-housing FBW servo actuator uses dual differentials and four motors to cut latency, avoid single-point failures, and simplify maintenance.

A lossy-material damper attached to an aircraft control surface suppresses free play chatter, cutting vibration and noise.

A one-piece spar with continuous hinge lines uses the hinge datum to place brackets accurately, cutting jigging, rejection, and assembly time.

Portable wireless maintenance displays bring LRU status, identification, and control closer to cargo system components to cut repair time and improve safety.

A Y-shaped spar end and bonded blade fitting create a lightweight, durable aircraft joint without hard-to-install mechanical fasteners.

Three piston heads and selectable fluid volumes let one actuator switch between fast low-force motion and slower high-force output.

A polymeric thread insert separates the leadscrew and nut to carry high loads with lower wear and less need for lubrication.

Coordinate conversion maps pilot-frame commands to the aircraft frame, simplifying RC flight control as orientation changes.

Aerothermal heating turns stored lubricant into a flowing phase that lubricates and cools flight control surface bearings in high-speed vehicles.

A chamber-mounted damper stabilizes the flexure tube and nozzle to suppress LCO across temperature and flow changes.

Abnormal-load sensing triggers clutch disengagement and actuator braking to isolate jam loads without oversized aircraft structures.

A backup processor inside the inceptor keeps effector commands available when flight control computers fail, without heavy mechanical backup.

A U-shaped bushing with radial flanges cuts pin joint float while preserving flexible placement and access in tight aircraft structures.

A single handheld controller combines keyboard, scroll wheel, joystick, and display to cut cockpit space and weight while preserving mission input.

A fixed-wing UAV adjusts altitude and droplet size during autonomous spraying to extend flight time and reduce chemical drift.

Dynamic authority control lets remote pilots adjust electric aircraft in autopilot while blocking unsafe pitch and restricted-airspace commands.

Curved tubular cavities and additive manufacturing shrink aircraft servocontrol size and weight while preserving hydraulic connectivity and service life.

Curved additively manufactured hydraulic cavities shrink aircraft servo controls while preserving sealing, strength, and thermal expansion tolerance.

Separate-material hydraulic cylinder and piloting unit improve servocontrol modularity, weight, and thermal expansion tolerance.

Abnormal-load sensing disengages a clutch and applies braking to isolate jammed aircraft actuators without oversized structures.

A spherical bearing and shear fuse pin let an underwing flap support pivot and detach on ground contact, reducing wing damage, weight, and cost.

A backup rotary drive keeps the shaft moving when the primary actuator drive jams or fails, preserving full linear travel.

A flight controller estimates airspeed from onboard data to calculate turn rate, simplifying lateral control and avoiding costly sensors.

A three-piece failsafe clevis uses equal-thickness lateral parts to simplify fit-up, reduce shimming, and keep fail-safe strength.

Spatially separated sub-drives and coupled harmonic gears keep helicopter rotor actuation working after a drive fault and reduce wear.

Integrated flight control computers, FAT voters, and backup batteries keep small fly-by-wire aircraft controllable during failures.

A mechanically coupled selector sets UAV flight mode and camera pitch, cutting gimbal weight, cost, and electronic complexity.

A three-piece clevis uses uniform flange thickness and common fastener grip length to cut assembly time, shimming, and tolerance issues.

Viscoelastic material inside the side stick gear smooths axial gear engagement, reducing freeplay and improving force feedback accuracy.

An FBW descend plane automates rotorcraft descent and deceleration to hover, easing pilot workload while maintaining stable altitude and speed.

A voided extruded control surface with a deformable knuckle protects foam UAV wings from denting while staying light and easy to replace.

Forward flight drag and reduced stabilization damp tethered UAV payload oscillations during winch deployment and retrieval, improving delivery stability.

A flight controller manages lift, thrust, and pilot override to smooth eVTOL transition between vertical and horizontal flight.

An FCC adjusts pitch commands by AGL altitude to damp nose-up motion and prevent rotorcraft tail strikes during landing.

By combining flap status, aircraft state, and runway weather data, the system detects flap failure and guides safer slip landing.

A polymer thread insert separates metallic leadscrew and nut threads to carry high loads, reduce wear, and avoid lubrication.

A normally open bypass valve and reversible gear pump enable controlled landing gear extension and retraction, even with uncertain power.

Reflected light patterns help a drone detect glass or water surfaces and estimate distance for collision avoidance when obstacles are hard to recognize.

A 4-bar gooseneck hinge lets flight control surfaces deploy without cut-outs, reducing high-speed drag and easing aircraft integration.

Combining keyboard, joystick, scroll wheel, and display in one handheld unit reduces cockpit hardware while supporting real-time mission input and control.

A unified synthetic vision display merges onboard and external data to improve remote pilot awareness and cut workload in IMC and night flights.

Sensors and controllers isolate a jammed primary actuator lane and engage a standby secondary lane to maintain actuation and reduce damage.