Center-mounted control system of bicycle

摘要

A center-mounted control system of a bicycle comprises: a torsion detector (1), a torque transducer (2), first and second wireless transceiver units (3, 4) and a control unit (5). The torsion detector (1) is sleeved on a central shaft (12) of the bicycle and used for detecting a torque signal on the central shaft (12) and transmitting the torque signal to the torque transducer (2). The torque transducer (2) is fixedly connected to the torsion detector (1) and used for sensing the torque signal that is transmitted and sending the torque signal to the control unit (5) through the first and second wireless transceiver units (3, 4). The control unit (5) is used for receiving and processing the torque signal and performing control on a motor (6) of the bicycle. A first clutch (18) is sleeved on the central shaft (12) and is fixedly connected to one end that is near a chain wheel (13) of the torsion detector (1). In addition, the first clutch (18) is fixedly connected to the chain wheel (13). Based on the present invention, no matter whether a left or right foot puts forth strength, the torque transducer detects the torque signal before the chain wheel, which can implement a zero start and gain a better power assistance effect upon riding at a low speed or a high speed.