Fluid-Pressure Actuator Testing TRIZ Cases

Pressure-based estimation of sealed gas loss detects excavator accumulator degradation early, helping cut fuel use and prevent oil leakage.

When position feedback fails, actuator pressure and a dynamic simulation model maintain position control for pneumatic or hydraulic devices.

Strength analysis on a hydraulic device design model creates reference data for real-time health monitoring without extensive physical testing.

Motor-speed feedback opens individual bypass valves so motor-pump units can start or stop without interrupting hydraulic pressure and flow.

Automatic learning runs verify actuator and requirement parameters from motion and physical limits, improving positioning accuracy and wear detection.

Cooling power and pump conveying power are used to assess hydraulic system ageing and maintenance urgency, helping avoid unnecessary service and failures.

A variable horn radius actuator changes moment arm length to match flight-control loads and cut peak hydraulic power demand.

A multi-position ejection flap holds and then releases round bales after unloading, preventing rollaway on uneven terrain and reducing harvest delays.

Two perpendicular electrode pairs enable fluid level and conductivity measurement in any mounting orientation without sensor adjustment.

Existing position and pressure sensors diagnose transmission accumulator volume and pressure faults without added sensor complexity.

A filtered dual-chamber reservoir lets high- and low-pressure hydraulic circuits share fluid, cutting pump demand and limiting contamination.

A control-unit diagnostic checks safety valve pressure drop in an automatic gearbox hydraulic circuit to catch faults without extra sensors.

Sensor feedback detects mismatches between pump flow, pivot angle, and pressure, then corrects valve settings to prevent hydraulic power loss.

Selective valves and a compensator tank balance sealed hydraulic flow to prevent lock, handle thermal expansion, and cut energy loss.

A composite dead zone keeps unintended fine lever inputs from triggering pump reconnection, preserving actuator speed and work pace.

A controller simulates joint-line flow between two hydraulic pumps to keep boom raising and swing operability while reducing pressure loss.

Sensor feedback and microcontroller logic keep pump pressure and engine speed within safe ranges to prevent stall in working machines.

A reference hydraulic cylinder and position sensing diagnose transmission pressure accumulator volume loss and gas leakage with fewer sensors.

Cooling power and pump delivery are tracked to judge hydraulic system ageing and maintenance urgency in metal forming plants.

A preadjusted valve start position based on load and geometry reduces dead band, oscillation, and power loss in hydraulic slewing.

A shared pressure sensor tracks real pressure drop during safety valve diagnosis, simplifying dual-clutch gearbox hydraulics and preventing sustained high pressure.

A control-unit diagnosis module uses one clutch-path pressure sensor to detect accumulator and gear selector leakage with lower sensor cost.

Differential pump pressure during straight travel reveals left or right track anomalies while canceling temperature and aging effects.

Onboard sensors compare frame and linkage signals to calibrate motor grader measurements without external devices or cumbersome setup.

Fuzzy hydraulic control adjusts a round baler feed opening from speed, force, and pressure signals to cut jamming and stabilize bale formation.

Predicting break-away pressure at other actuator positions enables wear and service life assessment without extra movement or measurements.

A bleed-off valve lowers meter-in differential pressure during calibration so actuator speed can be mapped accurately in high-velocity regions.

Comparing left and right pump pressures during straight travel detects track friction anomalies without temperature-based wear sensing.

Valve-sequenced pressure map calibration corrects hydraulic sensor errors, improving excavator actuator flow and velocity control.

A flow control valve limits arm oil during combined arm-bucket motion, helping the bucket keep rotation speed and reset position smoothly.

A trusted pressure sensor is used to recalculate gain and offset online, correcting drift in electrohydraulic valve sensors without downtime.

Pressure rise, elapsed time, and boom-lowering counts are used to estimate gas loss and flag hydraulic accumulator degradation early.

A microprocessor valve controller runs stored applications and sensor feedback to add flexible closed-loop pneumatic motion with less cabling.

A secondary load-signal line and pressure control valve offset power-beyond pressure losses to maintain hydraulic flow and precise attachment actuation.

Median-current teach-in corrects the flow-current curve to handle valve variation, improving hydraulic oil filling and shift smoothness.

A variable horn radius actuator changes moment arm length to cut peak hydraulic power demand and pressure loss in aircraft flight control surfaces.

Controlled hydraulic flow and idle-time measurement determine accumulator pre-charge without pressure sensors, improving repeatability and maintenance timing.

Predicted valve behavior, pressure, flow, and recovery time are used to sequence irrigation zones and avoid water hammer.

Differential pressure and flow sensing track filter condition in fluid synthesis, enabling timely replacement without harming suspension quality.

Mean-error pressure correction helps hydraulic actuators track target pressure quickly without amplifying fluid oscillations.