Rider Propulsion TRIZ Cases

Angular velocity sensors analyze speed deviations from a sinusoidal curve to estimate torque, eliminating complex exposed mechanical torsion sensors.

A battery layout structure positions the drive control device beneath subframes to house electrical components within a compact frame.

A control unit coordinates electric and mechanical drive units to optimize torque conversion during gear changes.

A rotary force transfer mechanism uses a rack gear to transmit linear input force tangentially to a rotating structure.

Controller compares sensor signal phase and period differences to distinguish wheel from crank rotation, preventing inappropriate motor assist operation.

Replacing metal with carbon fiber-reinforced plastic resolves the contradiction between reducing vehicle body weight and maintaining sufficient strength.

A motorized bicycle controller switches between pedal regeneration and assistance modes based on detected terrain conditions.

Electronic control unit adjusts electric motor torque based on bottom bracket shaft rotation speed to provide selectable assistance levels.

Segmenting the bumper into separate lift and tow units resolves installation complexity while delivering enhanced towing strength.

Vertical mounting positions the assist motor ahead of the engine to access cooler air, resolving insufficient cooling caused by rear-mounted designs.

Torque pipe with magnetic conductive alloy sheet detects circumferential deformation via coil, enabling accurate zero-start control.

A gear shift detection method calculates motor load torque from existing sensor data to identify transmission state changes without extra hardware.

An integrated controller coordinates motor torque with automatic gear changes to extend battery life.

A segmented pod structure with a cantilever beam protects occupants from hazards while maintaining vehicle maneuverability.

An asymmetric replacement bumper alters ski orientation and contact points to resolve darting issues caused by front-end digging in ruts.

Hinged board segments enable tri-fold storage, resolving transport constraints for rigid longboards.

A pedelec control unit adjusts motor assist levels using sensor data and processing logic.

A control unit detects rider body movements using distance sensors to adjust electric bicycle propulsion in real time.

Adjustable fork and axle clamps on a universal front ski assembly accommodate varying motorcycle models while protecting tubes from trapped snow damage.

A manipulation detection unit compares actual drive power against target values to identify speed signal tampering in electric bicycles.

A concentric rotor assembly engages a bicycle sprocket to provide electric pedal assistance via a motorized drive subassembly.

Control logic reduces motor rotational speed before shifting to prevent chain damage and derailleur stress while ensuring rapid assistance recovery.

Rotating foot platforms allow independent pivoting while rollers guide wheels along grooved tracks to prevent dust accumulation.

Offset solar modules on bicycle wheels prevent fork blade shadows from collapsing electrical voltage.

An elastomer damping element decouples the bicycle drive from the frame to minimize structure-borne noise transmission.

A control device adjusts supporting torque using distinct rules across rider input ranges to ensure seamless power delivery.

Segmented battery extraction from the seat tube resolves the trade-off between integrated aesthetics and removal complexity.

Segmented plastic panels on a metal tube frame reduce weight and cost while maintaining structural integrity and protection from debris.

Segmented pedals with intermediary return mechanisms double power transmission while reducing pedal return time.

Bottom-mounted trucks with rounded cutout corners reduce stress concentration risers that cause deck cracks, improving stability without compromising strength.

Segmented shafts with an internal planet gear mechanism combine human and motor forces, eliminating front derailleur interference and chain wear issues.

A wheel skate device with a detachable foot platform secured by a locking pin.

A control unit coordinates electric and mechanical drive units to optimize shifting timing in hybrid transport systems.

A snow vehicle powertrain uses a multipiece drive axle to deliver independent track power while housing coolers within tunnel assemblies.

Nesting the exhaust inside the frame isolates users from heat while composite materials reduce weight without sacrificing durability.

An oblique frame tube opening enables diagonal battery insertion, preventing accidental ejection and collisions with upper tubes.

A detection device monitors a connecting portion to track gear shift movements, preserving inner cable durability while enabling precise motor control.

A drive motor control method adjusts torque output based on detected pedaling parameters and gear wear levels to protect transmission components.

Temperature sensors trigger deployable scratchers that throw snow onto skid rails, resolving inadequate cooling in extreme cold conditions.

A clip engages a ski bolt to shift stance laterally, eliminating tool removal and disconnection.

A control device detects user walking speed and nearby vehicle speeds to adjust electric bicycle motor output.

Switching between torque and speed control algorithms maintains downward regulation speed while reducing driver effort.

Vertical spring bars cushion force peaks and absorb structure-borne noise while compensating for manufacturing tolerances in the mounting assembly.

Progressive torsion spring coupling eliminates abrupt impact loads on snowmobile suspension components, reducing driver discomfort.

Integrating frame tubes as lever arms with a gear mechanism increases torque output while reducing overall bicycle weight.

Spacer bushings pivot blades to prevent digging into ice, resolving stability and maneuverability trade-offs.

An electronic controller manages transmission shifting in human-powered vehicles by restricting gear changes during motor state transitions.

Autonomous pedelec nodes exchange speed data to eliminate master-slave single points of failure and ensure fault-tolerant synchronization.

A carbon fiber-reinforced plastic snowmobile tunnel uses internal reinforcing members to achieve high rigidity.

Rear suspension assembly with torsion springs and hydraulic dampers counters weight transfer during acceleration.