Clutches TRIZ Cases

See how a magnetic coupling with spring-loaded decoupling prevents drive system damage when spr

See how a curved pipe inlet uses rotor-generated pressure differences to ventilate coupling gua

See how an autonomous overload protection mechanism disengages the spray arm drive when blockag

See how a radially enlarged clutch cover obscures fastener heads while preserving tool access,

See how a bearing chamber and shock-reducing sleeve eliminate axial gaps and vibration transmis

A support member below the engine creates protected hose paths, absorbs assembly error, and isolates vibration from the front axle.

Uses road gradient and deviation variables to switch between cruise and coasting on downhill roads, cutting energy use while maintaining speed and distance.

A friction disk and Belleville spring add adjustable damping between coaxial shafts to cut torque oscillations while preserving decoupling.

A copper bush and needle bearing work together in an EPS shaft joint to cut low-temperature noise and vibration while reducing cost and weight.

Torque reduction before clutch release and speed matching for the next clutch help work vehicles avoid shock, unintended drive, and wear.

Tactile vibration on the clutch pedal signals the engaged-disengaged transition, helping drivers recognize half-clutch more accurately.

Integrated over-running clutch and friction elements isolate belt-driven torque shocks, reducing wear, belt ejection, and maintenance downtime.

Limits engine torque and clutch engagement during vehicle launch to hold wheel slip and traction on ice or snow.

Acceleration-based clutch engagement and torque matching improve vehicle response and traveling feel during half-engaged acceleration.

Engine torque is reduced and tracked in real time so the clutch holds an effectively closed position, then opens near zero torque to cut slip and driveline oscillations.

Adjusted outer-rotor inertia replaces a flywheel to suppress torque ripples and rotational fluctuations in a more compact motor-generator.

Combining wheel speed, clutch pedal position, and engine speed resolves manual gearbox ambiguity for safer driver assistance control.

Alternating motor rotation clears dog clutch tooth-to-tooth blocking when a free shaft is friction-driven, improving EV powertrain coupling reliability.

When dog clutch teeth block on a free shaft, reversing tooth rotation uses friction and slip to complete engagement with less wear and vibration.

An axially aligned spring damper in the generator torque path cuts engine torsional vibration while avoiding a separate damping module.

During oversteer at high propulsion torque, rear clutch requests are equalized to prevent slip, protect clutches, and maintain wheel control.

During oversteer, rear dual clutches adjust torque capacity and distribution to limit slip, protect the clutches, and keep handling predictable.

A controller disengages and gradually reengages the axle-driven generator to avoid wheel blocking while keeping trailer refrigeration powered.

An annular-groove seal ring and grease-filled gap isolate the CV joint outer race from the hub bearing to cut noise and block contaminants.

Two cowl parts with grill openings shield the clutch, improve airflow cooling, and simplify gear motor assembly and maintenance.

Road-gradient-based switching of hold-control cancellation simplifies motorcycle starts while helping prevent uphill engine stalling.

A fail-open bypass valve and integrated pump-reservoir housing simplify hydraulic brake control while reducing external components and leakage risk.

A layered tolerance ring improves heat transfer and retention force to resist loosening, misalignment, thermal expansion, and wear.

Routing space between the engine and support member guides hoses, absorbs vibration, and protects the drive transmission shaft.

Position-compensated hold torque limits EV rollback on inclines while reducing driveline oscillation and improving launch stability.

Two-stage clutch synchronization matches rotor and gear speeds to avoid torque clipping, improve shift response, and limit wear.

Temperature-based current and speed control keeps transmission clutch oil flowing in extreme cold, preventing pump stall and excess power use.

A driveline controller uses position baseline and compensated speed to apply hold torque and prevent EV rollback without oscillations.

A boot assembly replaces the bearing internal seal to block contaminants, cut drag torque and friction noise, and simplify axle repair.

Gradual duty-ratio control of hydraulic clutches cuts shifting shock during two-wheel, four-wheel, and acceleration drive transitions.

A single brake pedal coordinates braking rate and forward-reverse clutch transmission to cut operator fatigue and simplify shifting.

Dynamic PTO clutch control smooths torque changes during activation in moving vehicles, improving drivability and stability.

Independent valve control on multiple cooling branches balances oil flow to motors, clutch, and transmission to avoid overcooling and heat imbalance.

A resilient ram lets rotor disks with axial run-out be pressed onto a shaft while preserving inner-edge orientation and bond quality.

Dynamically controllable one-way clutches cut drag in two-speed EV transmissions while easing shift precision and improving torque transfer.

Expandable elastomer plugs align female internally splined shafts by axial compression, reducing spline damage, vibration, and wear.

Real-time road data and cloud-based judder indexing predict DCT clutch life objectively and trigger timely maintenance alerts.

A single pump and hydraulic diverter alternately drive the brake or clutch, improving modulation while reducing handlebar weight and hand injury risk.

A shaft sleeve and internal lubrication path raise rotor shaft lateral stiffness for higher motor speed with less misalignment and wear.

During inertia-phase switching, the transmission learns µ-V friction behavior from torque and shaft acceleration to prevent shift shock over time.

A recessed circuit carrier fully encapsulates shaft-mounted electronics, improving sealing, durability, and wireless power transfer on rotating cardan shafts.

A sliding shaft and booted axial joint maintain CV power transfer while allowing plunge travel needed for harsh off-road terrain.

Automatic clutch and parking brake coordination prevents rollback on slopes in work vehicles without adding complex hill start hardware.

By merging the CV joint outer race with the wheel hub and using the boot as an inner seal, this case cuts weight, backlash, and hub nut loosening.

A CV joint at the drive end and a double-centered universal joint at the wheel end save space, raise torque capacity, and extend service life.

A downstream dual-range clutch layout expands EV gear ratios while shortening transmission length and lowering gear and shaft speeds.

Fluidly connected CV and axial boot covers equalize air pressure during shaft plunge while maintaining wheel power transmission on rough terrain.

A recessed washer layout in the CV joint suppresses wheel hub noise and vibration while blocking debris from contaminating the wheel speed sensor.

Segmented shafts and a hole-aligned coupling member maintain straightness over long spans while making multi-shaft assembly easier.

Axially compressed elastomer plugs lock alignment tools inside female splined shafts for precise centerline alignment without spline damage.

A two-piece spring damping assembly in a power take-off absorbs engine torque transients to cut torsional vibration noise.

A biased thrust washer and journal bearing add friction damping between nested shafts to reduce torsional oscillation and speed fluctuation.

By comparing input and output transmission speeds with the active gear ratio, this case estimates clutch slip and wear in real time.

Matching clutch slip-point speed direction to a target torque curve enables smoother torque transfer and less perceptible shifting.

Selective hard machining and soft finishing of ball tracks cuts CV joint cost while preserving guiding precision, efficiency, and service life.

Built-in piloting projections and seats align splined shafts to protect input seals and mating rings from misalignment wear.

A shaft shoulder backs up fluid and drives centrifugal counterflow through spline toothing to prevent wear and frictional corrosion.

Real-time gain and offset correction improves wet clutch torque estimation across oil temperature, flow, and pressure changes to reduce slippage.

Injection-molded retainers support coil springs in a one-piece steel assembly, cutting rivets, parts count, noise, and torsional angle limits.

A convex grease retainer seals the outer race through-hole to stop grease leakage, restrain ball movement, and simplify CV joint assembly.

An integrated ring and spring-washer layout removes rivets, simplifies torque limiter assembly, and maintains firm friction-disc clamping.

By switching between actuator output and release-angle sensing, the controller improves clutch touch-point estimation and adapts to wear and temperature.

Dual sensor feedback lets an electric actuator control clutch capacity with simpler hardware, reducing complexity and improving automatic engagement.

A sectional driveshaft cover contains grease without touching the spinning universal joint, improving durability and service access.

A self-calibrating dog clutch routine updates engagement threshold position to cut grinding, wear, and missed shifts in electrified transmissions.

A grooved adjusting ring seals and lubricates escalator roller bearings to block dirt and moisture, ease maintenance, and prevent corrosion.

Fastened to the driveshaft or yoke instead of the spinning joint, segmented cover sections contain grease and simplify maintenance.

A two-piece shaft with alignment indicators lets machine sections be swapped quickly without shaft disassembly while preserving drive timing.

A removable stop member in the cap blocks fitting axial travel during assembly, preventing boot contact, misalignment, and joint damage.

By separating engine or motor torque errors from clutch torque errors during shifts, this case shows how model-based clutch adjustment reduces NVH.

Nested tolerance rings in a cartridge prevent entanglement during packaging and shipment while enabling easier automated assembly.

A two-section shaft with alignment indicators enables faster machine arrangement swaps while preserving drive power transmission and timing.

A friction tube forms a spring-biased damping interface on a torsion shaft to curb angular vibration without adding the mass of conventional shafts.

Helical winding with protruded attenuation strips increases interference contact to absorb vibration energy and shift driveshaft resonance.

During heavy-vehicle engine shutdown, timed clutch disengagement and shaft braking cut driveline noise, vibration, and release-bearing wear.

Pressure-derivative timing tracks hydraulic clutch wear without gear, load, or slope inputs, enabling reliable driveline monitoring.

Laser-formed embossed areas keep joint rollers from slipping off, easing bent-axis piston unit assembly and reducing hydraulic fluid contamination.

Internal shaft passageways and a rotary distributor replace complex oil hoods, improving spindle lubrication and reducing rolling mill downtime.

Soft planet gears in an epicyclic window covering drive damp vibration, cut operating noise, and keep the shade moving quickly.

Optically activatable coatings on shaft and sleeve surfaces reveal gaps and misalignment early, enabling simpler aircraft drive shaft inspection.

Tool grooves and a locking nut simplify CV joint assembly, cutting installation cost and time while maintaining reliable torque transmission.

Controlled lock-up clutch slip pressure cuts torsional vibration while preserving torque converter efficiency and drivetrain life.

Serrated connectors and a mounting aid lock universal joints at the correct phase angle for smooth steering torque and neutral wheel alignment.

Oscillating test and checking currents help detect clutch pressure changes quickly, enabling faster, more accurate VKP setting for smoother shifts.

A keyed sleeve adapter aligns motor and workpiece shafts to transmit torque while reducing stress, wear, vibration, and fit errors.

A pressure relief valve caps hydraulic motor torque in a motor grader circle drive, preventing clutch overheating and protecting the gearbox.

A linear regression model estimates DCT line pressure from state variables, enabling timely oil pump control without a sensor or relief valve.

A pilot-operated valve and accumulator lock hydraulic fluid after charging, then release it after a pressure-delay to prevent premature discharge.

An annular insert in the splined coupling seal groove prevents joint wear, preserves oil retention, and maintains sealing under displacement.

Outer-diameter attachment with welded U-shaped disks reduces flexible coupling weight and size while improving manufacturability and debris protection.

Fast lever-speed detection shifts clutch capacity to a quick connection target, cutting engagement delay and improving rider response.

A clutch-path pressure sensor tracks accumulator pressure and valve spread during switchover, improving transmission hydraulic fault diagnosis.

Wireless torque mapping lets a multi-speed power tool remap clutch settings and signal when target torque is exceeded.

Internal bore oil flow and outlet orifices cool and lubricate generator and gearbox splines while supporting torque transfer.

A torsionally rigid retainer and elastic element compensate shaft misalignment and thermal expansion while preserving valve positioning and reducing noise.

Multiple cage windows and three track-pair geometries keep CV joint balls aligned in bending to cut friction, contact pressure, and failure risk.

Gripping the cage inner surface keeps the cassette aligned during orthogonal insertion and rotation, preventing ball loss and outer joint interference.

Axial spacing and a wave-structured tolerance ring tune torque transfer, improving overload protection and stability despite wear or temperature changes.

Targeted switching between clutch micro-slip and overpressing cuts slip losses while preserving smooth shifting and driving comfort.

Embedded piezoceramic sensors in a brake pad detect braking forces under heat and stress, helping prevent wear, noise, and vibration.

By timing clutch self-opening after actuator shutoff, this case detects stuck engagement before engine start without extra components.

Dynamic hydraulic pressure control uses rotational speed data to keep sealing ring PV within limits and trigger timely clutch maintenance.

Opposed slotted openings let the inner ring install without extra outer-ring width, cutting gimbal weight, drag, and bending stress.

Antistatic powder additives help polyamide 610 form a continuous sliding-shaft coating without vacuum voids, improving strength and heat resistance.

Annular grooves fix torsion bar active length despite assembly stackups, reducing spring rate variation and improving steering torque sensing.