Gearing Control TRIZ Cases
- Shift Apparatus Unified Control for Range Indication Accuracy
Unified control device coordinates display indication and transmission range switching, preventing discrepancies between indicated and actual vehicle ranges.
- Gearbox Selection Mask for Silent Reverse Gear Engagement
A gearbox selection mask mechanism actuates forward gear elements to brake the primary shaft during reverse gear engagement.
- Transmission Operating Mechanism Reduces Modified Parts
A transmission operating mechanism uses a universal housing to support multiple gear shifting configurations.
- Electro-hydraulic Control System Diagnostics via Pressure Adjustment
Adjusting main line pressure in electro-hydraulic control systems detects faults through pressure switch status monitoring.
- Vehicle Control Apparatus Engine Speed Management During Gear Switching
Electronic control unit manages engine target speed based on torque transmission state during gear switching operations.
- Vehicle Transmission Control Method for Faster Gear Shifting
A transmission control method cuts fuel and releases the clutch to reduce engine rpm before shifting gears.
- Shift Device Bearing Plate Segmentation for Support Distance
A shift device bearing plate uses segmented sheet metal components to provide adjustable support distance between shaft bearing points.
- Torque Converter Control for Landfill Compactor Overheating
A powertrain control system commands a torque converter to remain in direct-drive mode during transmission shifts.
- Gearshift Knob Vibration Damping via Viscoelastic Sheet
Bonding a viscoelastic metal film to the inner surface of a rigid gearshift lever knob suppresses high-frequency noise and shock amplification.
- Vehicle Shifter Assembly Selective Retention Mechanism
A shifter assembly employs a unitary locking member to prevent inadvertent movement while reducing component complexity and production costs.
- Compact Gear Lever System Using Vertical Offset for Wire Routing
A gear lever system uses a vertical support module to convert motion from the cab to horizontal wires under the vehicle.
- Blended Gear Ratio Torque Estimation During Transmission Shifts
Dynamic blended gear ratios estimate transmission torque during shifts, resolving accuracy losses from static models and reducing shift shock.
- Torque Converter Clutch Adaptation via Pressure-Torque Averaging
A torque converter clutch control system learns pressure points by averaging ramp pressure and engine torque over specific time periods.
- CVT Ratio Selection During Braking Using Predictive Velocity
Transmission control module calculates predictive vehicle velocity to actuate a continuously variable transmission to a desired speed ratio.
- Nested Gear Shift Control for Automatic Transmissions
A control method manages successive upshifts and downshifts in automatic transmissions by preparing switching elements during ongoing gear changes.
- Loading Cam Retainer Segmentation for Friction Roller Speed Reducer Stability
Offset retainer projections segment axial pressing force to prevent instability while hydraulic chambers adjust traction based on centrifugal speed.
- Adaptive Cruise Control Speed Behavior Model
A host vehicle control unit determines a leading vehicle speed behavior model to adapt time gap and speed regulation.
- Automatic Transmission Shift Control for Engine Speed Limiting
An automatic transmission control apparatus prevents sudden upshifting by dynamically adapting shift schedules to varying engine rotational speed limit values.
- Automatic Transmission Downshift Control for Cornering
A transmission control device predicts rolling amounts to determine target speed change stages.
- Automatic Transmission Ratio Shift Control for Torque Hole Elimination
A transmission ratio control system decouples engine torque from clutch engagement to manage gear shifts.
- Iterative Gear Tooth Deformation Calculation for Static Transmission Error
An iterative method calculates meshing tooth deformation to determine static transmission error without full finite element analysis.
- Shift Range Switching System Cogging Torque Control
A shift range switching system uses motor cogging torque and an allowance mechanism to position engagement members into troughs.
- Compact Dual Transmission Filter Housing Design
Single filter housing accommodates primary and auxiliary filters, reducing volume while maintaining dedicated filtration paths.
- Automated Transmission Prepositioning for Shift Timing
A control device prepositions transmission operating parameters using a Boolean variable to signal the next gear change direction.
- Lockup Clutch Control System for Vehicle Power Transmission
A lockup clutch control system selects engagement or release paths to minimize heat generation during vehicle power transmission operations.
- Actuating Current Reference Determination for Transmission Shifting Elements
Determines actuating current reference values by monitoring rotational speed differences between shifting element halves.
- Torque Converter Piston Resonance Damping via Hysteresis Friction
A torque converter piston generates hysteresis torque through a friction generating mechanism, preventing resonance damage during engine startup fluctuations.