Rider Propulsion TRIZ Cases
- E-Bike Drive Unit Mounting via Orthogonal Shaft Nesting
Orthogonal shaft nesting positions the drive unit inside frame recesses, resolving chainstay space conflicts while maintaining mounting security.
- Power-Assisted Bicycle Torque Sensor Vibration Isolation
One-way clutch placement in reduction gears isolates torque sensor from vibration.
- Single-Shaft Motor Drive Unit Torque Detection Without One-Way Clutch
A single-shaft motor drive unit uses a cylindrical human power transmission member with a magnetostriction torque sensor to detect pedal rotation.
- Adaptive Time Constant Control for Electric Bicycle Drive Response
A control unit varies drive time constants based on rotational movement comparisons to optimize motor assistance.
- E-bike Drive Unit Idle Gear Reduces Rear Center Length
An idle gear transmits torque from a decelerator to a driven gear, shortening the rear center length and improving ground clearance.
- Bicycle Handlebar Drive Integrating Upper Body Motion
Cable drive and transmission assembly convert bidirectional handlebar motion into unidirectional sprocket rotation, adding upper body propulsion to pedal drive.