A bicycle hub assembly comprises a hub axle, a hub shell, a sprocket support body, and a clutch. The sprocket support body is rotatably mounted on the hub axle to rotate about a rotational axis. The sprocket support body is rotatable relative to the hub axle and the hub shell about the rotational axis. The clutch has a first coupling state where a pedaling rotational force is transmitted from the sprocket support body to the hub shell in a first rotational direction during pedaling, a first release state where the hub shell is rotatable relative to the sprocket support body in the first rotational direction during coasting, and a second coupling state where a coasting rotational force is transmitted from the hub shell to the sprocket support body in the first rotational direction during coasting.

A wheel hub motor includes a motor housing and a motor received in the motor housing. The motor housing includes a first holder, a second holder coupled to the first holder, and a protective ring detachably coupled to the second holder. The motor is received in the first holder and the second holder. An inner diameter of the second holder is equal to an outer diameter of the motor. An outer diameter of the protective ring is greater than the outer diameter of the motor. An inner diameter of the protective ring is smaller than the outer diameter of the motor.

A bicycle wheel has a wheel frame. The wheel frame is a hollow and annular frame and is composited by multiple equally sized wheel bars. Each one of the wheel bars has two halves connected to each other to form the wheel bar, and each one of the two halves being made by laminating, heating and forming a thermoplastic prepreg. The equally sized wheel bars are connected to each other to form the bicycle wheel.

A bicycle hub assembly includes a hub axle, a hub shell, and a sprocket supporting member. The sprocket supporting member includes a tubular portion and a first tooth. The tubular portion includes an outer peripheral surface and an attachment portion provided only radially inward of the outer peripheral surface. The first tooth is configured to be attached to the attachment portion of the tubular portion. The first tooth includes a first surface and a second surface. The first surface is configured to face a mounting portion of a bicycle sprocket in a circumferential direction of the sprocket supporting member. The second surface is opposite to the first surface in the circumferential direction. The second surface is configured to face the mounting portion of the bicycle sprocket in the circumferential direction.

A spoke attachment assembly configured to couple a rim to the spokes of a spoked bicycle wheel. The spoke attachment assembly comprises a nipple having an enlarged head and a stem provided with a coupling portion for coupling with a spoke, at least one shaped washer associated with the nipple and configured to abut on one side with the enlarged head of the nipple and, on the opposite side, with the rim and holding means configured to hold said at least one shaped washer associated with the nipple. The invention also relates to a spoked bicycle wheel and to a process for manufacturing such a wheel.

A freewheel hub for a bicycle is presented. The freewheel hub may include a hub axle, a hub sleeve which is mounted rotatably on the hub axle, and a driver which is mounted rotatably on the hub axle and can be connected to at least one sprocket arrangement. A freewheel device may be arranged between the hub sleeve and the driver. The free wheel device may include a first clutch ring, which is coupled or couplable to the hub sleeve in a torque-transmitting manner, a second clutch ring, which is coupled or couplable to the driver in a torque-transmitting manner. The two clutch rings have mutually facing axial toothings and a preload device which is designed and arranged to preload the two clutch rings axially towards one another, wherein the preload device has a spring arrangement with at least one spring element made of a plastic with a cellular structure.

A system and method in a building or vehicle for an actuator operation in response to a sensor according to a control logic, the system comprising a router or a gateway communicating with a device associated with the sensor and a device associated with the actuator over in-building or in-vehicle networks, and an external Internet-connected control server associated with the control logic implementing a PID closed linear control loop and communicating with the router over external network for controlling the in-building or in-vehicle phenomenon. The sensor may be a microphone or a camera, and the system may include voice or image processing as part of the control logic. A redundancy is used by using multiple sensors or actuators, or by using multiple data paths over the building or vehicle internal or external communication. The networks may be wired or wireless, and may be BAN, PAN, LAN, WAN, or home networks.

A drive system, wherein: a drive shaft and an output shaft as well as a second motor, to-gether with the second rotor shaft thereof, are arranged coaxially in a first shafting; a multi-stage cross-drive steering transmission of the drive system, together with a sun gear, a ring gear and a planetary carrier, is designed solely as a three-shaft planetary gear stage, which is arranged in a second shafting parallel to the first shafting; and a first motor is arranged in a third shafting together with the first rotor shaft thereof, said third shafting being parallel to the first shafting and to the second shafting.

A bicycle controller limits decreases in the assist force when the rotational speed of a crank changes. The bicycle controller can be mounted on a bicycle including a first transmission having at least two shift stages and configured to change a ratio of rotation of a wheel to rotation of a crank, a motor that provides assistance to human power input to the crank, and a second transmission configured to transmit a rotation force from the motor to a power transmission path extending from the crank to the wheel without changing the ratio of the rotation of the wheel to the rotation of the crank. The bicycle controller includes an electronic control unit that controls the second transmission in accordance with a condition of the bicycle and either one of a condition of the first transmission and a shift instruction to the first transmission.

A bicycle driving device that allows a second motor to be reduced in size includes a first planetary mechanism, a first motor, a second motor, and a speed reduction mechanism. The first planetary mechanism includes a first input body to which rotation of a crank is input, a first output body that rotates when the first input body rotates, and a first transmission body that transmits rotation of the first input body to the first output body. The first motor is capable of rotating at least one of the first input body, the first output body, and the crank. The speed reduction mechanism reduces rotation produced by the second motor in speed and transmits the rotation to the first transmission body.