Gearing Control TRIZ Cases

Rotatable sleeve locks shifter handle to lever with wedged flange, eliminating lash between components.

A control system limits power source output and applies braking force to reduce ground speed before executing a directional shift in mobile machines.

A tiltable transmission assembly adjusts belt tension via an electronic actuator to regulate drive speed in walk-behind lawn mowers.

A gear stage choosing apparatus selects optimal gears by evaluating a limited range around an estimated speed.

A transmission lever device uses a blocker to guide linear gear selection movement.

A transmission control module calculates vehicle speed offsets to determine target gears for downshifting during deceleration events.

Drive-train calculating device determines reference drive-train information using rider sustainable power and target cadence data.

Determining gearshift points relative to an engine target speed eliminates time-consuming calibration work while maintaining stable vehicle operation.

Transmission controller detects select operations using time and rotation speed thresholds to determine engagement sequences.

The device adjusts target drive force by calculating transmission input torque from corrected rotation speed, preventing drive force deviation during high load operation.

A mathematical model simulates cab movement to determine optimal traction force decrease, shift, and increase times that minimize vibration amplitudes.

A single triaxial Hall sensor replaces multiple units to simplify assembly and wiring while maintaining precise three-axis detection.

A hydrostatic drive controller adjusts pump and motor displacement to maintain constant machine speed during operation.

A vehicle transmission button gear shift uses light emitting portions to indicate current and selectable stages.

A lockup clutch control device manages frictional state variations during slip engagement transitions to ensure smooth torque transmission.

A control device adjusts idle rotational speed based on gear ratio to maintain hydraulic pressure.

A CVT control device manages the integral component via a limiting mechanism to maintain target transmission ratios.

A latch-mounted fork enables reverse gear engagement through a control finger housed in a rotating catch.

A vehicle control unit manages continuously variable transmission shifts to maintain acceleration response during driving.

Integrating the actuating drive into the core space minimizes radial and axial installation space while reducing power loss in the high-energy flow circuit.

A controller adjusts gear shift patterns and engine RPM based on estimated clutch temperatures to prevent overheating.

Dual locking arms block shifter yoke movement via surface abutment, eliminating precise pin-groove alignment requirements.

A torque converter clutch control method combines feedforward pressure commands with PID feedback to manage slip dynamics.

A transmission control system monitors filling pressure adaptation counters to manage gearshift quality during initial commissioning.

A vehicle control system selects between skip and stepwise downshifting using an accelerator evaluation index to optimize gear transitions.

A CVT control system determines a preferred input deceleration profile to manage variator speed ratio changes during step-upshifts.

Rotating the inlet-outlet distributor via a phase shift actuator optimizes energy efficiency by adapting phasing to varying operating conditions.

Radial cushion fixation positions the outer cable end while maintaining low axial rigidity to inhibit vibration transmission.

Sequential engagement of frictional and positive-locking switching elements reduces differential speed, preventing torque shocks during rapid gear shifts.

A vehicle control device manages engine torque during deceleration downshifts to maintain smooth transmission engagement.

Single bar-shaped fastener replaces multiple bolts and nuts, reducing component count while enhancing rigidity and noise resistance.

A vehicle transmission system calculates target clutch torque and shift spindle angle using real-time engine data for precise gear shifts.

A control unit detects actual speed parameters and compares them against predefined minimum and maximum limits to issue precise shift commands.

A control unit limits transmission ratio correction using front-wheel speed data when an external device connects to a vehicle connector.

Closing the oil passage to the primary pulley ensures timely starting clutch engagement during coast stop re-starts.

A control apparatus adjusts manual gear shift mode duration based on driver inputs and vehicle speed.

Dual control units monitor motor drivers and disconnect temporary faults to maintain continuous shift range switching.

A shift control device switches transmission ranges based on brake status to prevent unintended vehicle movement.

Electronic control device manages transmission gear shifts to ensure smooth transitions between automatic and manual driving modes.

An electronically controlled converter clutch uses integrated apply and release passages to manage engagement without dedicated supply lines.

Vehicle control device selects optimal gear positions using road slope data to minimize fuel consumption in automated manual transmissions.

Radial play in the decoupling ball isolates gear coupling lever vibrations from the shift lever, reducing amplified oscillations.

An FMR valve in the control line blocks fluid to disengage a single clutch, preventing uncommanded torque transmission during actuation failures.

Replacing mechanical encoders with magnetic flux analysis resolves the contradiction between measurement precision and device complexity in vehicle gearboxes.

Segmented RTN components with bias springs minimize hysteresis from machining tolerances, ensuring reproducible neutral positioning.

Worm gear actuator drives rack gear to rotate parking sprag, reducing operating force and shock during mode switching.

A transmission controller adjusts engaging target clutch torque capacity during phase transitions.

Raising the DC actuator motor voltage above the base system level accelerates dog clutching, reducing total gear shift duration by 20ms.

An insulating supporting element guides a locking pawl laterally, reducing friction and preventing spark formation from leakage currents.