Applicable to electric bicycles, cargo bikes, tricycles, and quadricycles, this chainless drive system integrates a range extender motor with multiple advanced functions. It can generate power, collect cadence and pedaling force data, and simulate bicycle resistance for a more realistic riding experience.The motor uses a FOC (Field-Oriented Control) algorithm to accurately simulate cycling resistance, providing smooth and natural pedal feedback. Through fully electrical transmission, it eliminates the need for mechanical chains, simplifying production and assembly while enabling multi-actuator control. On e-bikes and cargo, the chainless drive system enhances structural stability and load capacity. It can also be applied to small boats, reducing operational noise while maintaining efficient power delivery. The system features electric assist and a maintenance-free design, offering both operational convenience and environmentally friendly performance."