Gearing Control TRIZ Cases

Unified control device coordinates display indication and transmission range switching, preventing discrepancies between indicated and actual vehicle ranges.

A gearbox selection mask mechanism actuates forward gear elements to brake the primary shaft during reverse gear engagement.

A transmission operating mechanism uses a universal housing to support multiple gear shifting configurations.

Adjusting main line pressure in electro-hydraulic control systems detects faults through pressure switch status monitoring.

Electronic control unit manages engine target speed based on torque transmission state during gear switching operations.

A transmission control method cuts fuel and releases the clutch to reduce engine rpm before shifting gears.

A shift device bearing plate uses segmented sheet metal components to provide adjustable support distance between shaft bearing points.

A powertrain control system commands a torque converter to remain in direct-drive mode during transmission shifts.

Bonding a viscoelastic metal film to the inner surface of a rigid gearshift lever knob suppresses high-frequency noise and shock amplification.

A shifter assembly employs a unitary locking member to prevent inadvertent movement while reducing component complexity and production costs.

A gear lever system uses a vertical support module to convert motion from the cab to horizontal wires under the vehicle.

Dynamic blended gear ratios estimate transmission torque during shifts, resolving accuracy losses from static models and reducing shift shock.

A torque converter clutch control system learns pressure points by averaging ramp pressure and engine torque over specific time periods.

Transmission control module calculates predictive vehicle velocity to actuate a continuously variable transmission to a desired speed ratio.

A control method manages successive upshifts and downshifts in automatic transmissions by preparing switching elements during ongoing gear changes.

Offset retainer projections segment axial pressing force to prevent instability while hydraulic chambers adjust traction based on centrifugal speed.

A host vehicle control unit determines a leading vehicle speed behavior model to adapt time gap and speed regulation.

An automatic transmission control apparatus prevents sudden upshifting by dynamically adapting shift schedules to varying engine rotational speed limit values.

A transmission control device predicts rolling amounts to determine target speed change stages.

A transmission ratio control system decouples engine torque from clutch engagement to manage gear shifts.

An iterative method calculates meshing tooth deformation to determine static transmission error without full finite element analysis.

A shift range switching system uses motor cogging torque and an allowance mechanism to position engagement members into troughs.

Single filter housing accommodates primary and auxiliary filters, reducing volume while maintaining dedicated filtration paths.

A control device prepositions transmission operating parameters using a Boolean variable to signal the next gear change direction.

A lockup clutch control system selects engagement or release paths to minimize heat generation during vehicle power transmission operations.

Determines actuating current reference values by monitoring rotational speed differences between shifting element halves.

A torque converter piston generates hysteresis torque through a friction generating mechanism, preventing resonance damage during engine startup fluctuations.

A manual transmission control lever uses a cable-driven retention release device to disengage the fixation member without direct access.

Synchronizing clutch application with engine speed drops during CVT upshifts reduces noise and vibration while maintaining torque transfer efficiency.

Residual-based detection identifies mass and rolling resistance shifts, reducing computational load while maintaining measurement precision.

A control apparatus adjusts clutch torque capacity and transmission speed ratio to protect the belt from slipping.

A gear blockout system within a manual transmission shifter assembly selectively blocks shift lever movement to prevent engagement of first and second gears.

Periodic solenoid cycling stabilizes actuator pressure during low speed and high temperature conditions, preventing destabilization.

A control device increases clamping force on a CVT belt using wheel speed difference sensing to prevent slippage.

Dynamic accumulator isolation maintains hydraulic stiffness and prevents pressure oscillations, enabling rapid clutch engagement without auxiliary pumps.

Segmented support absorbs manufacturing tolerances to reduce stress on electric motor during assembly.

A lean vehicle gear-shift controller inhibits automatic shift-down during coasting to maintain stable driving force.

A transmission control system detects driver hand gestures to project gear data on a heads-up display.

A gearshift control unit selects a starting mode to initiate clutch engagement for resolving tooth butt conditions.

A lock-up clutch control device adjusts integral term gains based on input shaft speed and oil temperature to match target slip speeds.

A vehicle transmission controller generates torque estimates using a single nonlinear function modified by measured values.

Planetary gear set steps up rotational movement in automatic transmission output region to enable additional gears without increasing device complexity.

Preliminary clutch disconnection allows rapid dog engagement without impact, reducing vibration and shortening torque transmission delay.

Engine control module adjusts torque converter lock-up clutch engagement speed to minimize mechanical shock.

An intermediary display value reduces perceived speed variation during garage parking shifts, minimizing operator unease caused by load fluctuations.

A vehicle transmission system switches gear shift maps based on throttle and speed signals to optimize shifting.

Metal powder injection molding shapes control fingers with high dimensional accuracy, eliminating casting defects and reducing post-processing costs.

Segmenting non-linear fluid device characteristics into linear sections simplifies controller tuning and improves drivability without complex high-order models.

A vehicle shifter assembly integrates a display unit and control buttons directly onto the shift lever housing.