Steering Rudders TRIZ Cases

Parallel cooling-water distribution after the motor jacket balances motor, transmission, and inverter cooling without undercooling or excess flow.

A balanced rigid wing, tail control surface, and solar power enable autonomous sailing vehicles to travel long distances in rough seas.

A roller-screw actuator with a magnetic clutch extends marine steering stroke in a smaller envelope while resisting back-driving forces.

A nested roller screw actuator extends steering stroke in a compact marine vessel envelope while reducing bending loads and enabling clutch control.

Rudder-angle-based re-engagement lets marine autopilot resume quickly after manual steering without waiting for heading stabilization.

Compressible insulation lets a modular vessel stabilizer cut structural noise and vibration while easing maintenance and hull-free upgrades.

Rudder-angle-based re-engagement lets marine autopilot resume after manual steering without waiting for heading alignment, reducing delay and wear.

Coordinated trim tabs and propulsion steering control vessel roll and turn rate to cut energy use and limit dangerous side forces.

A separate edge touchscreen offloads marine controls from the main display, improving access to key features while reducing screen clutter and power use.

Speed-based parameter scaling lets a ship autopilot update model-based steering control and maintain stable performance as vessel speed changes.

Real-time evaluation of ship state and handling sets steering parameters that improve heading control and reduce excessive rudder action.

Closed-loop bow and stern distance control keeps a twin-rudder ship parallel to the quay for precise automatic docking under wind and current.

Automatic docking uses twin rudders, a bow thruster, and quay distance sensing to keep the ship parallel and correct wind and current drift.

Differential propeller speed induces yaw and breaks wake symmetry, improving surf wake shape without ballast or stern plates.

Online frequency-response tuning updates vessel control gain in real time, reducing memory load and calculation delay under disturbances.

Vibration-isolated modular mounting cuts structural noise from vessel stabilizers while allowing maintenance and upgrades without hull rework.

A single-body pump, cylinder, and distributor cut long cables and pipes in boat steering while preserving actuator performance.

Real-time evaluation of heading and steering behavior lets ship autopilots retune control parameters for changing cargo and weather.

Intermediate waypoint feedback updates steering angles in real time so ships can start turns correctly and stay on route despite waves.

Lowering ship speed control responsiveness before a turn reduces main engine load fluctuation and suppresses fuel consumption.

Coordinated trim-tab and outboard control cuts steering energy use while limiting roll, vibration, and side forces in vessel turns.

Lowering ship speed control responsiveness during turns reduces main engine load fluctuations, fuel use, and control interference.

Asymmetric yaw rate limits during left and right turns reduce hunting and meandering while keeping a watercraft closer to its target course.

Combining the pump, actuator cylinder, and flow distributor into one body cuts piping, lowers installation cost, and improves small-boat steering reliability.

Variable steering speed and torque limits keep the actuator within its output region while preserving steerable range and vessel turning response.

Real-time control coordinates water engagement devices with engine trim and steering to stabilize pitch, roll, and yaw while reducing drag.

Motion data shifts a vessel target area to its actual moving direction during turns, improving collision detection and reducing false alarms.

Differential stern propulsion and rudder counter-moments enable sideways ship movement and position holding without bow thruster interference.

A wireless helm-mounted sensor lets marine autopilot disengage on steering input, avoiding invasive hydraulic sensor installation.

Independent thrusters and directors let ships balance fuel efficiency with harbor maneuverability, reducing tugboat use and emissions.

Contact-free eddy current or ultrasound sensing tracks rudder bearing clearance continuously, reducing diver inspections and wear-related damage.

Electromagnetic hardstop engagement and periodic reverse pulses let a marine helm switch smoothly between joystick docking and normal steering.

Coordinated trim tabs and propulsion steering control vessel roll during turns, reducing side forces, vibration, and slow response.

Sensor feedback lets a UAV servo report position and operating status, enabling accurate position holding and health monitoring.

Wave-disturbance control coordinates thrusters and stabilizer fins to improve vessel stability while reducing fuel use and structural stress.

Motion-based control coordinates thrusters and stabilizer fins to counter waves, cut fuel use, and reduce structural stress on marine vessels.

An electronic control unit varies saildrive angle with rudder angle and boat speed to tighten turns and reduce stall effects.

An ECU varies saildrive angle with rudder angle and propeller speed to tighten turns and reduce stall effects across sailboat speed modes.

Hydrodynamic lift tabs keep rudder blades effective at low speed while avoiding jet-stream interference, spray, and wear.

By moving fin actuation outside the hull, this vessel stabilizer cuts cabin noise, frees interior space, and avoids wear-prone rotating seals.

Differential thrust and coordinated rudder control improve low-speed vessel yaw when reverse propeller flow weakens rudder steering.

A nested shaft passage shortens the cooling water flow path in an outboard motor, reducing pressure loss during lower unit pivoting.

A nested shaft passage shortens the annular cooling-water path in a pivoting outboard motor, reducing pressure loss and sustaining smooth cooling.

A mechanical tie bar and segmented hydraulic circuits keep twin marine steering actuators synchronized, load-shared, and operable after a failure.

Independent rudder control paths and electric actuators keep X-rudder steering available after partial failures while saving submarine space and weight.

A timed initial counter-rotating moment lets a ship move laterally from joystick input while keeping the hull attitude stable.

A pivotable fin and different lift coefficients across the rudder blade cut strength demand, cost, and drag while preserving maneuverability.

Digital twin steering compares actual and assumed hull motion to counter wind, waves, and currents with corrective rudder angles.

When steering angle sensing fails, the controller switches from feedback to operation-amount feedforward control to keep the watercraft steerable.

Turning-induced centrifugal force skews ship inclination readings, so this case corrects inertia sensor output using speed and rudder angle data.