Abstract: Disclosed are a method and apparatus for reusing wastewater. The method for reusing wastewater disclosed herein includes: generating a mixed wastewater by mixing multiple types of wastewater (S20); performing a first purification by passing the mixed wastewater through a flocculation-sedimentation unit (S40); performing a second purification by passing an effluent of the flocculation-sedimentation unit through a membrane bioreactor (MBR) (S60); performing a third purification by passing an effluent of the MBR through a reverse-osmosis membrane unit (S80); and reusing an effluent of the reverse-osmosis membrane unit as cooling water or industrial water (S100).

Abstract: An electric bicycle and a method of controlling the same are disclosed. The electric bicycle according to one embodiment of the present invention includes a weight sensing unit for sensing a rider's weight; a motor output controlling unit for controlling a motor driving output; and an electronic control unit for varying the motor output through the motor output controlling unit according to the weight sensed by the weight sensing unit, and the weight sensing unit classifies the rider's weight into a standard weight mode, an underweight mode, and an overweight mode according to the sensed weight, and if the weight is in the underweight mode, the weight sensing unit reduces the motor output to a value below the motor output for the standard weight mode and if the weight is in the overweight mode, the weight sensing unit increases the motor output to a value above the motor output for the standard weight mode.

Abstract: An electric bicycle and a method of controlling the same are disclosed. The electric bicycle according to one embodiment of the present invention includes a weight sensing unit for sensing a rider's weight; a motor output controlling unit for controlling a motor driving output; and an electronic control unit for varying the motor output through the motor output controlling unit according to the weight sensed by the weight sensing unit, and the weight sensing unit classifies the rider's weight into a standard weight mode, an underweight mode, and an overweight mode according to the sensed weight, and if the weight is in the underweight mode, the weight sensing unit reduces the motor output to a value below the motor output for the standard weight mode and if the weight is in the overweight mode, the weight sensing unit increases the motor output to a value above the motor output for the standard weight mode.

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 safety apparatus of an electric bicycle and a safety driving method thereof. The safety apparatus of an electric bicycle includes a foldable portion which is foldable by rotation of a folding lever, a first sensing portion, a second sensing portion, a control unit provided with at least one of current rotation information and current folded position information and including at least one of sensing range information on a per rotation basis and sensing range information on a per position basis, and a safety drive portion which, when the control unit determines that at least one of the current rotation information and the current folded position information is deviated from at least one of the sensing range information on a per rotation basis and the sensing range information on a per position basis, turns off activation of a motor.

Abstract: Disclosed herein is a method of setting valid output sections of a 3-axis acceleration sensor mounted within a tire of a vehicle, including setting an output signal of the 3-axis acceleration sensor in the z-axis direction as a reference signal, setting a specific section of the output signal in the z-axis direction as a valid section where a part of the tire where the 3-axis acceleration sensor is mounted contacts a road surface, and setting sections of output signals of the 3-axis acceleration sensor in the x-axis and y-axis directions corresponding to the valid section in the z-axis direction as valid sections in the x-axis and y-axis directions. The method sets precise valid sections applied to detect information between the tire and a ground surface so as to minimize a component of a noise section by connecting output signals in the x-axis, y-axis and z-axis directions.

Abstract: Disclosed herein are a safety apparatus of an electric bicycle and a safety driving method thereof. The safety apparatus of an electric bicycle includes a foldable portion which is foldable by rotation of a folding lever, a first sensing portion, a second sensing portion, a control unit provided with at least one of current rotation information and current folded position information and including at least one of sensing range information on a per rotation basis and sensing range information on a per position basis, and a safety drive portion which, when the control unit determines that at least one of the current rotation information and the current folded position information is deviated from at least one of the sensing range information on a per rotation basis and the sensing range information on a per position basis, turns off activation of a motor.

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.

Abstract: Disclosed herein is a method of setting valid output sections of a 3-axis acceleration sensor mounted within a tire of a vehicle, including setting an output signal of the 3-axis acceleration sensor in the z-axis direction as a reference signal, setting a specific section of the output signal in the z-axis direction as a valid section where a part of the tire where the 3-axis acceleration sensor is mounted contacts a road surface, and setting sections of output signals of the 3-axis acceleration sensor in the x-axis and y-axis directions corresponding to the valid section in the z-axis direction as valid sections in the x-axis and y-axis directions. The method sets precise valid sections applied to detect information between the tire and a ground surface so as to minimize a component of a noise section by connecting output signals in the x-axis, y-axis and z-axis directions.

Abstract: Disclosed is a disc brake capable of constantly maintaining the braking performance by preventing the eccentric abrasion of a pad upon the braking operation. The disc brake includes a disc rotating together with a wheel, inner and outer friction pads installed at both sides of the disc, respectively, a caliper housing supporting the outer friction pad, a wedge member installed at a rear side of the inner friction pad and formed at a rear surface thereof with an inclined surface, a support member fixed to the caliper housing and formed with an inclined surface corresponding to the inclined surface of the wedge member, a driving device operating the wedge member for a braking operation, and a hinge unit for coupling the wedge member to the friction pad. The disc brake further includes an elastic member coupled to the wedge member and the friction pad while interposing the hinge unit therebetween.

Abstract: Disclosed is a disc brake capable of constantly maintaining the braking performance by preventing the eccentric abrasion of a pad upon the braking operation. The disc brake includes a disc rotating together with a wheel, inner and outer friction pads installed at both sides of the disc, respectively, a caliper housing supporting the outer friction pad, a wedge member installed at a rear side of the inner friction pad and formed at a rear surface thereof with an inclined surface, a support member fixed to the caliper housing and formed with an inclined surface corresponding to the inclined surface of the wedge member, a driving device operating the wedge member for a braking operation, and a hinge unit for coupling the wedge member to the friction pad. The disc brake further includes an elastic member coupled to the wedge member and the friction pad while interposing the hinge unit therebetween.