Driving control method of in-wheel drive for electric bicycle

A driving control method for an electric bicycle,

• wherein the electric bicycle has an in-wheel drive driving control driver (A) and employs a pedal assist system (PAS),
• wherein the in-wheel drive driving control driver (A) comprises:
• a pedal (10) provided between a front wheel (11) and a rear wheel (12) and generating a pedaling power;
• a rear wheel center support rod (20) fixed to a center of the rear wheel (12) by two frames and spaced apart from the pedal (10);
• a hub (30) surrounding an outer circumference of the rear wheel center support rod (20) and coupled with spokes of the rear wheel, wherein the hub rotates upon rotation of the rear wheel;
• an electric driving driver (40) installed inside the hub (30) and including an electric motor (41), wherein the electric motor (41) is driven by an electric battery (70), wherein the electric driving driver (40) transmits an electric power generated by the electric motor (41) to the hub (30) and drives the rear wheel;
• a sprocket (50) provided on a first side of the hub (30), coupled with the rear wheel center support rod (20), and connected to the pedal by a chain;
• a ratchet unit (60) provided between the sprocket (50) and the hub (30), transmits the pedaling power to the hub (30) upon a first direction pedaling, and idles upon a second direction pedaling;
• the electric battery (70) supplying the electric power and driving the electric driving driver (40) and the electric motor (41), wherein the electric battery (70) is installed inside or outside the hub (30);
• and
• a driving control unit (80),
• wherein the driving control unit (80) comprises:
• a communication module (110) communicating with an external remote control device;
• a wiring lead-out hole (120) formed inside the rear wheel center support rod (20) and transmitting an internal power and an electric signal to outside while the hub (30) rotates, wherein the rear wheel center support rod (20) passes through a center of the hub (30);
• and
• a rotation detection unit (200) installed between an inner circumference of the ratchet unit (60) and an outer circumference of the rear wheel center support rod (20) and detecting rotational information of the sprocket (50), the ratchet unit (60), or the pedal.
• wherein the driving control method comprises:
• a starting step of supplying the electric power to the electric motor (41) of the electric driving unit (40) and the driving control unit (80) and making the electric bicycle ready to move using the electric power upon a start signal;
• a constant speed driving step of moving the electric bicycle at a constant rotational speed under the control of the electric driving unit (40), regardless of the pedaling power is provided;
• a constant speed driving releasing step of automatically discontinuing the constant speed driving step;
• and
• a slope skidding prevention step of preventing the electric bicycle from being pushed in a moving direction or in an opposite direction to the moving direction when the electric bicycle starts and stops on a slope by applying a high load and a counter electromotive force to the electric driving unit (40) and the electric motor (41),
• wherein the starting step is initiated by:
• using a key console communicating with a communication module, wherein the communication module is mounted on a drive control unit (80) of the electric bicycle, wherein a unique identification number is assigned to the key console so that the communication module is responsive to the key console present within a predetermined distance.