Abstract: The present invention relates to electric bicycle speed control device and method. According to the present invention, a torque of a motor for driving a wheel is controlled so that a speed of a pedal driven by a user follows a speed of the wheel, and a torque of the pedal is also controlled by applying an assist level according to the torque of the motor. Therefore, even in an electric bicycle with a chain, it is possible to feel a feeling of the pedal like a bicycle with a chain, and it is possible to adjust the force applied to the pedal according to the assist level.

Abstract: The present disclosure relates to a boosting mode of an electric bicycle, and has the effect of enabling safe operation of the electric bicycle while providing a necessary acceleration force by preventing a sudden acceleration not intended by a user by double determining the user's intention when rapid acceleration is required, such as when starting or overtaking an electric bicycle.

Abstract: The present invention relates to electric bicycle speed control device and method. According to the present invention, a torque of a motor for driving a wheel is controlled so that a speed of a pedal driven by a user follows a speed of the wheel, and a torque of the pedal is also controlled by applying an assist level according to the torque of the motor. Therefore, even in an electric bicycle with a chain, it is possible to feel a feeling of the pedal like a bicycle with a chain, and it is possible to adjust the force applied to the pedal according to the assist level.

Abstract: Disclosed herein are a bicycle and a control method of the same. The bicycle includes an electromagnet installed in a pedal body rotatably coupled to a pedal shaft and configured to generate a magnetic force when power is supplied thereto, a switching unit configured to switch on or off the power supplied to the electromagnet, and an electronic control unit configured to turn on or off the switching unit.

Abstract: Disclosed herein are an electric bicycle and a control method thereof. The control method of the electric bicycle in which a motor is rotated using electric energy stored in a battery to drive the electric bicycle, includes receiving an acceleration instruction value to accelerate the electric bicycle, input by a driver, during traveling, calculating a reference value according to a traveling velocity of the electric bicycle, and increasing time taken for a rotating velocity of the motor to reach a target velocity, if the received acceleration instruction value is more than the calculated reference value.

Abstract: Disclosed herein are a foldable electric bicycle and a control method thereof. The foldable electric bicycle including a drive motor to rotate at least one of a front wheel and a rear wheel, and an actuation lever to lock or unlock rotation between a front frame provided with the front wheel and a rear frame provided with the rear wheel by shifting the actuation lever, includes an actuation lever sensing unit to sense whether the actuation lever is at a locked position or at an unlocked position, a motor driving unit to drive the drive motor, and a control unit which controls the motor driving unit to drive the drive motor in order to generate torque between the front frame and the rear frame by movement of the wheels when the actuation lever is shifted from the locked position to the unlocked position.

Abstract: Disclosed herein are a foldable electric bicycle and a control method thereof. The foldable electric bicycle including a drive motor to rotate at least one of a front wheel and a rear wheel, and an actuation lever to lock or unlock rotation between a front frame provided with the front wheel and a rear frame provided with the rear wheel by shifting the actuation lever, includes an actuation lever sensing unit to sense whether the actuation lever is at a locked position or at an unlocked position, a motor driving unit to drive the drive motor, and a control unit which controls the motor driving unit to drive the drive motor in order to generate torque between the front frame and the rear frame by movement of the wheels when the actuation lever is shifted from the locked position to the unlocked position.

Abstract: An electric bicycle and a control method thereof are disclosed. The disclosed electric bicycle includes a direction sensor to sense a rotation direction of pedals, a pedal load controller to adjust a load applied to the pedals, and an electronic control unit to release the load applied to the pedals through the pedal load controller when the sensed rotation direction is a reverse direction.

Abstract: An electric bicycle and a control method thereof are disclosed. The disclosed control method, which drives the electric bicycle by rotating a motor using electrical energy accumulated in a battery, includes receiving an acceleration command value input by a user to accelerate the electric bicycle upon starting the electric bicycle from a stopped state, comparing the input acceleration command value with a reference value, and increasing a time taken for a rotation speed of the motor to reach a target speed when the input acceleration command value is greater than the reference value.

Abstract: Disclosed herein are an electric bicycle and a control method thereof. The control method of the electric bicycle in which a motor is rotated using electric energy stored in a battery to drive the electric bicycle, includes receiving an acceleration instruction value to accelerate the electric bicycle, input by a driver, during traveling, calculating a reference value according to a traveling velocity of the electric bicycle, and increasing time taken for a rotating velocity of the motor to reach a target velocity, if the received acceleration instruction value is more than the calculated reference value.

Abstract: An electric bicycle and a control method thereof are disclosed. The disclosed electric bicycle includes a direction sensor to sense a rotation direction of pedals, a pedal load controller to adjust a load applied to the pedals, and an electronic control unit to release the load applied to the pedals through the pedal load controller when the sensed rotation direction is a reverse direction.

Abstract: An electric bicycle and a control method thereof are disclosed. The disclosed control method, which drives the electric bicycle by rotating a motor using electrical energy accumulated in a battery, includes receiving an acceleration command value input by a user to accelerate the electric bicycle upon starting the electric bicycle from a stopped state, comparing the input acceleration command value with a reference value, and increasing a time taken for a rotation speed of the motor to reach a target speed when the input acceleration command value is greater than the reference value.