| 摘要 |
PROBLEM TO BE SOLVED: To detect slipping at low cost in a two-wheel vehicle such as a power-assisted bicycle configured to travel by transmitting the torque of human power or the torque of an electric motor.SOLUTION: A two-wheel vehicle 10 includes a vehicle speed sensor 14 provided to detect a rear wheel rotational speed Vrr, and slip detection means 36 provided to generate slipping of the two-wheel vehicle 10 when the rear wheel rotational speed Vrr increases with the lapse of time and increases to a rotational speed threshold value Vbs in the case of no change in duty ratio Dt of a control signal supplied to a motor driver circuit 32 with the lapse of time.SELECTED DRAWING: Figure 1 |
