| 摘要 |
The present invention refers to a system (1) for controlling a pedal-assisted bicycle (100) comprising an electric motor (101) associated to a wheel (102) of the bicycle, a pedal-thrust group (103) to be pedaled by a user, a transmission (104) operatively interposed between said pedal-thrust group (103) and one of the wheels (102) of the bicycle, wherein said control system (1) comprises:
- a sensor configured for detecting the speed (É w ) of said wheel (102) and for generating a signal representative of the wheel speed;
- an inertial measuring unit adapted to detect at least one among the longitudinal (a x ), lateral (ay) and vertical accelerations (a z ) and the yaw angular speed (É z ) of the bicycle and to generate signals representative of the same;
- a starting device adapted to deliver an activation or deactivation (ON/OFF) signal following an activation or deactivation command by the cyclist;
- a module (2) for controlling the electric motor (102), adapted to supply a motor current (I mot ) to be delivered to the electric motor (102) for controlling the same;
- a module (3) for determining the presence or absence of the cyclist on the bicycle, configured for delivering to the control module (2) of the electric motor (102) an activation or deactivation signal (Enable/Disable) according to whether it is detected the presence or absence of the cyclist, respectively;
wherein said module (3) for determining the presence or absence of the cyclist, comprises:
- one or more modules (6, 7, 8, 10, 11, 12) for preliminarily determining the presence or absence of the cyclist, each configured for generating a respective preliminary signal of absence or presence of the cyclist (1/0) based on one or more among the motor current (I mot ), the signal representative of the wheel speed (É w ), the activation/deactivation (ON/OFF) signal of the starting device, the one or more signals representative of one or more magnitudes detected by the inertial measuring unit (a x , a y , a z , w z );
- a synthesis module (5) configured for generating said activation or deactivation signal (Enable/Disable) to be delivered to the control module (2) of the electric motor (102) based on the combination of said preliminary cyclist absence/presence signals. Further, the present invention refers to a pedal-assisted bicycle provided with such control system. |
