Gearing Control TRIZ Cases

A pilot-controlled bypass valve opens quickly during shock loads to maintain minimum low pressure and protect closed-circuit hydraulic units.

A spring-latched dual-actuator parking lock adds self-testing and redundant pawl engagement to prevent unintended vehicle rolling.

A modular sliding pawl lock uses solenoid actuation for fail-safe park engagement and a cam release for towing or other manual disengagement.

When cold drag losses rise, extra shifting-element closure braces the transmission to prevent rolling and speed drive engagement.

A motor-driven rack-and-pinion pawl locks vehicle selector steps securely, preventing unintended movement during power loss or towing.

A glass-fibre reinforced polymer valve block cuts AMT actuator weight and manufacturing cost while preserving durability and heat resistance.

Ball-bearing linear guidance lets a gearbox selector slider move smoothly, improving shift precision while absorbing unintended contact forces.

Bi-directional spring-loaded cam shifting compensates for gear misalignment, enabling smooth speed changes without binding or component damage.

An actuator-driven shift lever uses a pawl, detent plate, and sensors to enable automatic gear changes for remote driving and parking.

Peak-pass timing lets the actuator estimate the target shift range before the detent roller reaches the valley bottom, improving response and cutting power.

Transmission ratio and shift position monitoring calibrate a CVP hub, detect backlash-defined end stops, and prevent actuator overload.

By reducing swash plate angle and prime mover speed during travel speed shifts, this case cuts hydraulic shock and energy waste.

An internal air channel formed by the housing groove and lead frame frees space, avoids connector clashes, and improves pneumatic actuation.

Switching between speed control and constant power control helps an electric oil pump prevent oil pressure drops during gear shifting.

A bidirectional actuating axis and lever replace spring return to keep gearbox clutch selection accurate despite off-center engagement.

Integrated steering wheel gear buttons replace central shifters to speed gear selection, free cabin space, and simplify driver control.

A selectable lower gear range restores driving force on uphill travel by shifting the minimum start gear below third gear.

By integrating LEDs and the magnetic sensor on one board, this shift lever layout cuts parts while keeping light guidance and position detection stable.

A spring-triggered rotary lock with dual actuators and magnetic position sensing improves parking brake reliability in electric drive units.

A rack-and-pinion push assembly simplifies transmission parking actuation, improving sprag engagement reliability while reducing friction, shock, and weight.

A rotary actuator and crank boost gearbox selection force to overcome friction blocking and support smooth return to neutral.

A manual gear-and-cam actuator disengages or engages the transmission park lock without hydraulic pressure or electric power, enabling safe towing.

A split transmitter-receiver layout with a blocking wall and moving mirror cuts light scattering, echo, size, and cost in 3D scanning.

A two-direction toggle and guided display simplify selecting and exiting added gearbox driving ranges without extra controls.

Stacked plates with offset through-holes form an oblique oil path between fluid chambers, cutting torque converter channel forging cost.

A relative longitudinal dynamics value lets one transmission control program deliver consistent shift behavior across different vehicle and powertrain setups.

An internal Hall sensor and magnet pair with a detent pin mechanism to deliver precise selector positions and repeatable haptic feedback.

Angled armature and flux collector surfaces stabilize BTSI solenoid action across heat, orientation changes, and 9-16 V operation.

Model-based learning updates automatic transmission gearshift parameters from speed sensor signals, cutting calibration shifts and enabling online adaptation.

A graph-regularized autoencoder fusion model propagates and corrects incomplete labels to improve multi-sensor classification with limited data.

Continuous pressure monitoring switches the driveline hydraulic system into limited actuation to preserve gear and clutch function while cutting pump energy use.

A cam-guided pawl and torsion spring lock an EV output gear without a ratchet, saving space while maintaining parking engagement.

Acceleration-based jump detection blocks shifts in off-road automatic transmissions to protect gear engagement and reduce mechanical stress.

A held gear selector actuation lets existing setting controls handle manual gear changes, cutting transmission hardware, weight, and console space.

A coil-driven coaxial latch replaces motor-spindle parking lock drives, cutting space and control complexity while keeping reliable actuation.

Motor reversal detection confirms the shift range despite overshoot risk, enabling earlier hydraulic control and more accurate shifting.

Distinct vibration patterns in a vehicle shift mechanism help drivers recognize drivable stages and avoid erroneous gear selection.

Dynamic offset current control cuts shift-solenoid load while preserving diagnosis and preventing oil pressure delay during gear shifts.

A pull-rod and cam linkage enables in-cabin parking release during power loss while preventing pawl misalignment and preserving parking function.

Adaptive shift control switches between automatic ratio changes and rider input, improving bicycle power delivery across changing riding states.

A monostable toggle switch and conditional direction symbol simplify selecting gearbox ranges and exiting a manual mode without extra controls.

Two separate inverters keep the shift motor moving during faults, smoothing position switching while avoiding oversized drive hardware.

A battery-powered external shifter drives the electric parking actuator so no-start hybrid vehicles can be moved safely during repair or production.

Load-based hydraulic valve shifting lets mulcher motors switch speed and torque levels to keep rotary implements productive across variable loads.

When acceleration demand spikes, this CVT control switches to a stepwise downshift and holds engine speed to sharpen early acceleration feel.

A spindle-driven threaded tube lets one electro-mechanical actuator shift gears and engage park, cutting gearbox actuation cost, weight, and complexity.

Controller-based valve opening reduction smooths traveling motor speed shifts and cuts shock without adding bleed fluid lines.

Speed-dependent gain tuning keeps toroidal CVT closed-loop control stable at high disc speeds without losing ratio response.

A forming tool creates load and guide regions in one pawl recess, simplifying manufacture while centering the locking bolt for reliable parking lock operation.

Pilot pressure is varied by travel motor speed stage to smooth shifting, prevent engine stall, and stabilize machine travel control.