Pedalling Comfort of a Custom Pedal Series Hybrid Drivetrain in a Cargo E-Tricycle

A Pedal Series Hybrid Drivetrain (PSHD) uses an electrical power transmission rather than a chain, belt, or shaft. It creates exciting opportunities for the vehicle's design, but pedalling does not always feel comfortable. This study evaluates comfort of custom PSHD in electric cargo tricycle. In this PSHD, pedal-drive generator converts human mechanical to that is used by two hub motors propel vehicle. The pedal-driven mechanically decoupled from propulsion Therefore, natural replicated using programmable controller resistance generator. Test subjects reported very comfortable feeling, however slightly different feeling traditional e-bike. They failed explain differences more detail. Further measurements show pedal has same cycle as pedals e-bike, greater variation instantaneous angular velocity.