Gearing Control TRIZ Cases

Segmenting input shafts via twin clutches prevents synchronous mesh coupling, resolving inertia mass trade-offs that worsen fuel efficiency.

A pre-packaged pressure control module integrates solenoid valves and a pilot sensor to regulate clutch actuation in automatic transmissions.

A control apparatus calculates rotational speed ratios to detect lock-up clutch engage-position sticking malfunctions during vehicle drive-off.

Segmented shift shafts with rotational play suppress transmission vibrations from the gearbox to the lever without adding damping components.

Reduces input speed to minimum during reverse rolling to prevent stalling and switching noise.

A transmission controller maintains a higher gear to prevent unnecessary shifting during vehicle operation.

A retractable gearshift paddle moves between deployed and retracted states to enable manual transmission control.

A shift by wire system separates the gear selector from the autonomous driving dial to prevent accidental mode activation.

A vehicle control system selects between clutch disengagement and engine output adjustment modes to manage gear position changes.

An automated transmission control system coordinates gear shifts to improve vehicle acceleration performance.

Axial prestressing via elastic elements prevents medium leakage by maintaining seal contact despite manufacturing tolerances.

A hydraulic detector measures discharge pressure to identify switching unit fixation in oil pumps.

An impeller disconnect clutch in a torque converter decouples the engine from the drivetrain during automatic start/stop events.

A shift-by-wire column shifter uses a slider magnet and sensors to detect gear position via linear motion conversion.

Merging rotation shafts and brackets eliminates assembly errors to enhance shift lever pivot center positioning accuracy.

A hydrostatic transmission controller adjusts pump and motor displacement to maximize available drag torque for vehicle braking.

Demand-driven supply pressure reduces feed pump power consumption during partial load operations.

A mechanical gear locking arrangement uses a transverse guide section to block shift rod movement, preventing simultaneous gear engagement.

Controller applies fluid volume to a multi-plate clutch while toggling an overrunning clutch into its overrunning state.

A transmission control system monitors brake pressure and vehicle velocity to determine optimal gear selection for engine braking.

A vehicle controller generates a notification indicating the previously selected driving mode upon restart.

A locking mechanism integrates a movable pawl with an actuating lever featuring a V-shaped flexible blade for positioning.

A vehicle shift control apparatus calculates target gear ratios based on detected road slope information ahead.

An indexed control knob limits the discharge outlet position, resolving maintenance difficulties caused by complex cable routing.

Integrating sensors and switches on one circuit board eliminates wire connections, reducing disconnection risks in gear-shift lever modules.

Control device synchronizes ignition timing retard with clutch engagement state to reduce shift shock and shorten recovery time during gear shifting.

A piston stroke return determination means detects the released state of a friction disc actuator in an automatic transmission.

Segments acceleration signals into six measurement factors to resolve responsiveness versus smoothness trade-offs.

A sub-CPU manages gear position maintenance and shifting to ensure smooth vehicle operation during main CPU abnormalities.

A four-position distributor valve minimizes component count while enabling non-sequential power-shift operations.

Segmented visual cues and color changes distinguish requested from applied ratios, resolving driver confusion during gear unavailability.

Differential land areas on a four-position shift valve apply fluid pressure to hold the transmission in the correct gear range during electrical failures.

Securing spare torque and using a servo clutch synchronizes motor speed with lower gear steps, preventing torque interruption during downshifts.

The system resumes torque down control when speed change progression stalls, preventing stagnation caused by insufficient torque reduction during upshifting.

A transmission controller uses mobile device orientation data to calculate vehicle roll angle and manage gear shifting operations.

A control unit adapts automatic manual transmission gear shifts to maintain traction on loose surfaces.

A compression coil spring biases a shift lever magnet against a printed wiring board to maintain consistent contact pressure during pivoting.

A spring bearing member pivots on a shift fork shaft to transmit lost motion spring load only during axial movement.

Real-time sensor data updates throttle and shift maps to maintain consistent acceleration despite varying road loads.

A pressure relief valve manages hydraulic fluid flow in a closed hydrostatic transmission circuit.

A shift range control apparatus applies cancellation current to reduce stator magnetic flux density.

A vehicle control apparatus calculates target torque based on air density while maintaining a constant target speed ratio.

A shift system control unit pre-fills air storage spaces using main shut-off valves to maintain pressure during gear changes.

Merging two pumps into one reversible unit simplifies the hydraulic circuit while maintaining reliable pressure distribution across all operating conditions.

Arranging measuring directions in three dimensions minimizes signal overlap between sensors while simplifying assembly complexity.

A single regulator valve manages fluid flow in a two-pass torque converter, maintaining lubrication and preventing stuck valve errors during engine shutdown.

Electric oil pump controls fluid flow in continuously variable transmission hydraulic circuits.

A hydraulic control device regulates pilot pressure to match line and secondary pressures in a continuously variable transmission.

A vehicle shift control device selects a transmission range based on real-time speed conditions during communication faults.

A transmission control unit calculates intersection passage time to prevent unnecessary downshifts during acceleration.