Gearing Control TRIZ Cases

A towing vehicle controller estimates trailered road grade by shifting sensor data in a spatial domain.

A shift operation determination apparatus regulates rotation of an operation member to prevent unintended gear range changes.

A pressure control valve connects to a selector that routes series pipes between high-pressure lines based on pressure differences.

Control system coordinates lock-up clutch release with brake input to engage drivetrain retarding force, reducing service brake wear and heat generation.

A cruise control system triggers transmission downshifts to provide engine braking on down gradients.

Guide sections on the base plate align the restriction member with auxiliary protrusions, preventing axial loosening without extra fastening steps.

A transmission controller learns engagement start pressure by monitoring differential rotation while a friction element slips during vehicle motion.

A shift range change system adjusts electric motor torque via duty ratio control for different operational phases.

A shift control unit manages clutch engagement and dog insert operations in a motorcycle transmission system.

Modified stator slots and a timing plate constrain planet axles, preventing egression while maintaining power capacity across wide speed ratios.

A hydraulic pressure control system sets operation pressure margins based on driving plans to reduce engine load and noise.

Electronic control unit adjusts transmission shift times based on driving mode to optimize gear changes.

Segmented flyweights on separate rotatable members eliminate belt slippage in high-performance engines by providing increased mechanical advantage.

A shift actuator control unit manages rotation positions to prevent dog portion re-engagement in twin clutch transmissions.

A vehicle transmission controller detects selector condition changes to set new transmission conditions based on previous and current states.

Multiplexed pressure control valves manage fluid flow to independently engage multiple torque converter clutches.

A shift range control apparatus determines the end of an idling state using motor and output shaft angles to set a precise target value.

An offgoing clutch control module increases clutch pressure above apply levels to ensure full engagement during negative torque conditions.

A CVT control device increases line pressure upon detecting oil vibration to stabilize hydraulic clamping forces.

A lock-up clutch engages in slip mode after a time delay and turbine speed threshold to transmit torque.

A control unit dynamically adjusts the change-gear ratio using output shaft rotational speed feedback to compensate for centrifugal clutch deterioration.

Proportional pressure conduits drive the actuator to modify cubic capacity, resolving manual load assessment errors and optimizing torque-speed balance.

A determination device updates actuator position parameters in a correspondence table to maintain precise gear selection.

A lockup control device adjusts pressure difference commands based on torque converter speed ratios to determine engagement timing.

A controller monitors hydraulic pressure and clutch rotational speed to prevent centrifugal lock-ups in work vehicle transmissions.

A multi-piece clevis assembly uses segmented sheet metal members to form complex gear shift components without investment casting.

A steering wheel mounted display assembly uses a counterweight mechanism to maintain an upright graphical output during rotation.

A shift-by-wire transmission uses a laterally offset second drive member to mechanically engage the park gear position.

A control device adjusts the continuously variable transmission ratio to align turbine and engine speeds during lock-up clutch engagement.

Adaptive cold start method for power split transmissions with hydrostats adjusts step duration based on monitored pressure and temperature states.

Segmented switching contours with spring-loaded latching elements constrain shifter shaft positions.

Electric gear shift actuator system automates transmission control via motor and reduction gearbox, eliminating manual operator intervention.

Fixation member applies constant mechanical pressure on axial seal to prevent water ingress despite rubber boot degradation.

A compact automatic transmission uses a single planetary gear set with claw clutches to enable high-speed overdrive and efficient power paths.

Segmenting the hydraulic pump into input and output driven units reduces power consumption during coasting while maintaining continuous lubrication.

A neutral lock lever with a retention pin prevents accidental forward or reverse gear engagement.

A dual clutch transmission shifts gears by engaging a higher auxiliary gear before the target gear to synchronize engine speed.

A speed change control device adjusts frictional element engaging pressure to manage torque transfer during gear shifts.

A continuously variable transmission control method increases engine rotational speed during vehicle acceleration to maintain output horsepower.

A transmission actuator fork uses fluid pressure adjustments to maintain precise pre-synchronization movement.

A shift lock structure uses a plate-shaped lock lever coupled to a solenoid plunger to block engaging lever rotation in the P-stage.

A shift range control apparatus holds transmission in non-drive state using door status signals.

Optimized centrifugal pump and turbine blade angles in a hydromechanical gearbox reduce engine power losses while maintaining high torque capacity.

Primary and secondary interlocking elements prevent simultaneous axial shift rail motion, protecting transmission components from damage.

A TGS cable socket integrates a rubber damper with a steel cup to transmit manipulation force while damping vibration from the outer cable.

A generator set uses a continuously variable transmission pulley system to adjust engine speed dynamically based on load conditions.

A vehicle control unit selects between torque and all-speed governors based on engine speed signals to manage transmission input shaft dynamics.

A transmission control system detects cornering values to adjust shift-down points based on rotational speed.