Gearing Control TRIZ Cases

An integral housing links the pump, accumulator, reservoir, and valve to cut drillings, contamination risk, machining cost, and response delay.

A spring-loaded rod and spacer keep a geometric gap during pre-actuation, speeding clutch engagement at lower fluid pressure.

Selective torque and speed mode switching lets the hydrostatic assembly hold a vehicle on slopes without parking brake wear or excess pressurization.

A spheroid selector and biased detent pin create stable, repeatable selector positions with clear haptic feedback for vehicle shifting.

Filtered vibration signals and FFT isolate transmission natural frequencies to quantify damper clutch wear for timely maintenance.

A pull-cord mechanism lets drivers mechanically release electronic parking from the cabin when power is off, improving safety and service life.

Dual inverter drive keeps motorized shift switching smooth during abnormalities while preventing interference and preserving torque.

Retractable dogs limit relative rotation during torque reversal, cutting shock loads while preserving reliable clutch engagement.

A choke unit and hydraulic damper smooth pressure peaks in a transmission parking lock actuator, reducing interlock wear and improving reliability.

Placing the Hall IC outside the magnet's rotation radius increases relative motion and improves shift position detection accuracy.

Variable pulley pressure correction limits belt slip during reverse restarts while keeping the CVT ratio at LOW for smooth vehicle movement.

An electric motor and solenoid replace transmission linkages to hold park and non-park positions with lower weight, less corrosion, and easier repair.

Accelerator-based clutch pressure control lets a stuck vehicle roll back freely, then reapply torque quickly without overrunning.

A one-piece rotary switch integrates blocking and detent contours to simplify transmission mode selection, improve haptics, and lower cost.

A low-force electromagnet and mechanical latch hold the slider in Not-Park, cutting actuator size and cost while enabling fail-safe return to Park.

Reversed motor torque starts counter-side backlash elimination before detent completion, cutting gear rattle during shift position switching.

Coordinated control of first and second clutching devices keeps torque flowing through gear shifts for smoother off-highway transmission performance.

A piston contactor sensor converts rotary selector angle into linear stroke signals, improving gearbox shift detection near transition positions.

A shared electric motor drives both the hydraulic pump and an eccentric park lock actuator, cutting extra motors, valves, and assembly effort.

Using effective torque as the shift signal enables real-time ratio matching, smoother gear changes, and higher transmission efficiency.

Rotor and output shaft angle sensing corrects backlash drift in a motorized shift mechanism, preserving accurate detent positioning without overloading the spring.

Controller-based prime mover speed reduction cuts travel speed shift shock without adding bleed lines or extra hydraulic parts.

G-sensor vibration and engine or turbine speed data pinpoint shift shock, judder, and clutch impact sources during driving for targeted transmission repair.

A magnetoelastic shaft section and integrated release-mechanism sensor enable compact, real-time manual transmission torque measurement.

Calculating acceleration across candidate downshifts lets the gearbox choose the gear with fewer shifts and a smoother, faster response.

A laterally pulled roller assembly engages the pawl without longitudinal push, improving transmission packaging, strength, and lock return.

A ball ramp and elastic actuator drive axial dog clutch engagement, cutting park lock power demand while resisting high differential torque.

Soft integrated sliding plates and stoppers improve shift lever slidability, cut end-stop noise, and simplify assembly.

An inductive sensor tracks park lock gear position and speed so the pawl engages at the right angle, preventing vehicle creep and extra sensors.

A rotary selector with integrated locking, blocking, and axial push input simplifies vehicle transmission mode switching and adds haptic feedback.

Opposing buffer clutches, springs, and a protecting ring keep the shift fork parked securely and reduce clutch dislocation wear.

A magnet-sensed rotary shifter uses springs and a spur gear to deliver one-bump return-to-center shifting with direct gear selection and tactile feedback.

A controller adjusts transmission boost pressure from aggregate hydraulic demand, cutting pumping losses without sacrificing shift pressure response.

A toothed slider and dog clutch widen the parking lock engagement window, cutting violent shocks and improving holding on slopes.

A DCT dynamic model with Gaussian process torque compensation synchronizes engine and clutch speeds to minimize shift jerk.

Torque converter slip under reduced lock-up clutch pressure reveals solenoid high-pressure fixation faults in automatic transmissions.

A motor-driven sphere and clutch assembly enables shift lock while allowing manual override, improving safety and interface visibility.

A motorized rotary plate and incremental angle measurement verify Park and non-Park states without a gearbox position sensor.

Spring-biased engagement elements use brake pedal release to lock the parking gear during power failure, preserving vehicle hold.

A shaped guide-rod support contour maintains spring preload during pawl swiveling, reducing disengagement force and preventing unintended parking lock engagement.

By locking the output with forward and reverse clutches, the hydrostatic assembly heats cold oil quickly to reduce wear and restore transmission performance.

Controlled clutch torque reduction during motorcycle shifting enables speed synchronization without full disengagement, reducing jerk and traction loss.

A solenoid-driven actuator and annular spring let a differential lock or unlock on demand to maintain torque transfer when wheel traction differs.

Adjusting hydraulic machine displacement during gear changes keeps drag torque within limits and enables reliable transmission stage engagement.

One control unit drives the motor while the other observes, preventing learning interference and preserving accurate shift position acquisition.

Speed thresholds and long-press shift logic help prevent unintended gear changes while simplifying steering-wheel selector operation.

Load torque changes across detent valleys let the shift mechanism learn P, R, N, and D positions accurately without current-sensor noise.