Gearing Control TRIZ Cases

A shift control system selects an interim gear stage to execute smooth skip shifts in automatic vehicle transmissions.

Predictive algorithms calculate motor RPM and regenerative voltage before shifting to avoid overvoltage damage.

Automatic parking control places the transmission in a power-cutoff state during manual shifting operations.

A shift isolation lever links a solenoid actuator to a clutch sleeve, resolving blocked tooth conditions that increase power output requirements.

Dynamic threshold adaptation prevents false diagnostic flags during ratio changes while maintaining accurate gross slip detection.

A hydrodynamic transmission system transmits drive power through fluid coupling to absorb mechanical shock loads during operation.

A control unit limits drive source torque based on hydraulic system pressure to maintain starting component engagement during vehicle startup.

Lock plate concave parts and variable convex heights enforce intentional shifting actions to prevent accidental gear selection errors.

A continuously variable transmission control method switches between position feedback and hydraulic feedback to manage primary pulley pressure.

Direction and range encoders verify discrete positions to prevent operational faults in hybrid transmissions.

Assembly regulating device prevents accidental vehicle movement by ensuring electric actuator alignment during maintenance.

Fusible zones in the gearbox casing allow the inertia mass to eject during impact, preventing bulkhead perforation and steering column contact.

Segmented rigidity in a shift lever cushion absorbs impact via low rigidity deformation while a high rigidity core restricts movement and reduces noise.

A control unit calculates gear steps using a predicted engine time period derived from torque and inertia parameters.

A controller shifts the transmission into neutral while the brake pedal is applied to conserve fuel.

A parking release monitoring device measures clutch solenoid driving current to detect gear state changes without extra sensors.

Segmented shift assemblies with return biasing members prevent damage during blocked conditions while maintaining smooth shifting operations.

A vane pump design uses back-pressure grooves to push vanes outward against a cam ring.

A control rod integrates a resilient locking means within its recess to engage gear position grooves.

A controller calculates gear ratios using shaft revolutions and a variable allowance map to determine the current transmission step.

A speed sensitive damping arrangement uses stacked plates and viscous grease to provide proportional resistance to shift lever movement.

Transmission control device detects blind corners and automatically executes downshifts to apply optimal engine braking.

Integrated fluid passages within coupled yokes eliminate external manifolds, reducing assembly volume while maintaining reliable power transmission.

A spring clip secures a knob to a lever using elastic deformation, eliminating screw-based assembly delays.

Synchronizing coast downshifts with torque speed eliminates false malfunction detections and reduces noise vibration harshness in automatic transmissions.