Wheel Based Transmission TRIZ Cases

A control unit coordinates electric motor torque with rider input to enable smooth gear changes.

A polarization-maintaining fiber section introduces time delay between orthogonally polarized signals to compensate for optical path length differences.

Segmenting the motor and reduction mechanism on opposite sides of a hollow axle achieves weight balance without protrusion.

A double-acting air cylinder system manages compressed gas pressure between a motorcycle frame and wheel to adjust ride height.

A concentric bicycle transmission uses a variable speed motor and planetary gear mechanism to adjust rotational power.

Tilting balls in a spherical variator adjust the speed ratio, resolving the contradiction between transmission precision and device complexity.

Adaptive gear control resolves riding comfort issues by adjusting shift thresholds according to dynamic speed progression.

A vehicle wheeled device uses a steering mechanism to pivot support wheels for lateral stability.

Central brake pedal connects to side pedals via hinges and helical springs that prevent simultaneous activation for steer-by-braking functions.

A bicycle drive unit housing positions an assist motor adjacent to the crankshaft to minimize overall length.

A bicycle hybrid drive system uses an intermediate drive part and clutch to enable independent motor or crank operation.

A threaded adapter and holding member prevent axial and rotational movement to ensure stable wheel mounting without requiring stronger forks.

A cam lever and slot assembly enable tool-free wheel removal from closed bore dropouts.

Treeliss frame design reduces mass while increasing torsional rigidity to prevent elastic deformation during cornering.

A triangular driving unit arrangement positions overlapping motor and gear components to minimize axial footprint in electric assist bicycles.

Nesting a coaxial speed reducer inside the wheel hub resolves the conflict between high driving moment and limited mounting space.

A multi-speed gear hub integrates a vertical shear force load carrying through-bolt with epicyclical mechanisms for compact lightweight design.

A continuously variable planetary gear integrates electric and pedal drives within the crank area to enable stepless torque summation.

A bicycle drive unit integrates a planetary gear mechanism with a switching mechanism to manage transmission paths.

A foot-operated speed change controller uses an electro-hydraulic actuator and detection unit to translate driver input into precise gear shifts.

A motorcycle transmission uses a desmodromic drum to actuate coupling forks for precise gear selection.

An electro-mechanical bicycle transmission uses an input electrical machine to regulate torque within predetermined limits.

A bicycle hub integrates a continuous torque tube to transfer rotational forces between fork legs.

A hub assembly rotation control structure transmits differential rotational speeds between rotatable members.

A modular drive device integrates gearbox and brake components into a central housing for bicycles.

A bicycle component controlling apparatus uses multiple sensor signals to generate control commands for automatic transmission and suspension systems.

Segmented remote inertia valve distinguishes rider power from terrain forces, preserving efficiency while absorbing shocks.

A bicycle bottom bracket drive uses a linearly movable shift gate to block planetary gear degrees of freedom for seamless automatic shifting.

A gear-shift controller for a leaning vehicle predicts travel line changes to inhibit driving force fluctuations during turns.

A traveling apparatus calculates correct pitch angles by canceling yaw rate mixing from angular velocity sensors.

A bicycle image capture controller switches modes automatically using sensor data.

Integrating the electric motor and planetary gear within the crank mechanism reduces manufacturing costs while optimizing center of gravity for better handling.

An offset steering column aligns with the user centerline to improve control comfort and stability.

Sensors detect coasting states to adjust suspension damping, resolving the contradiction between pedaling efficiency and terrain traction.

A bicycle gear hub shift mechanism aligns actuator rotation with control pawl closure to simplify transitions between planetary gear modules.

A combined fender and brake assembly rotates about a pivot point to contact the front wheel rim.

Axle-mounted coil springs cushion vertical vibration at the front wheel, minimizing trail measurement to improve steering stability.

Longitudinal grooves in hollow bicycle frames protect cables from damage while access ports maintain assembly ease.

A motorcycle steering assembly uses a lever mechanism to manage load distribution between the upper and lower steering stems.

Relocating the shift actuator to the transmission rear reduces engine heat exposure and improves spatial efficiency.

Inverting the driving pulley direction counteracts drive track angular momentum, enabling easier leaning and turning on soft snow.

Offset main shafts reduce crankshaft-to-pivot distance while maintaining compact axial width in twin-clutch transmissions.

An actuation system for pedal-actuated electric vehicles uses an autonomous variable speed drive to adjust gear ratios without manual intervention.

A cam self-adaptive hub uses a cone-disc clutch to shift gears automatically.

A shift mechanism selects which device receives direct mechanical power from the engine, eliminating intermediate electrical conversion losses.

Merging the box body and cover eliminates separate machining of shaft holes, resolving coaxiality trade-offs while reducing production costs and noise.

Positioning a bearing at the same axial location as a transmission gear frees radial space for other components, resolving motor support constraints.