Abstract: A bicycle shifting control apparatus controls an electrical power supplied from a power supply to first and second gear shifting devices that are operated by first and second gear shift operating devices, respectively. The bicycle shifting control apparatus includes a first power supply sensor and a controller. The first power supply sensor detects a power level of the power supply. The controller receives a power level signal from the first power supply sensor. The controller performs a stopping operation of the first gear shifting device in response to the first power supply sensor detecting the power level of the power supply being below a first prescribed power level, but the controller transmits a second gear shift signal from the second gear shift operating device to the second gear shifting device to perform a second shifting operation of the second gear shifting device.

Abstract: A switch designation apparatus for a bicycle control unit comprises a first switch structured to be mounted to a bicycle for providing signals to move a moving bicycle control device, a second switch structured to be mounted to the bicycle for providing signals to move the moving bicycle control device, and a switch designation unit that allows a user to selectively designate movements of the bicycle control device signaled by at least one of the first switch and the second switch.

Abstract: A motorized bicycle derailleur assembly has a motor unit, a movable part (e.g., a motor linkage, a derailleur linkage and/or a chain guide) and a controller. The movable part is in response to activation of the motor unit within a mechanical stroke. The motor unit has a motor output stroke with a prescribed maximum movement range that is larger than the mechanical stroke of the movable part. The movable part has an anti-jamming arrangement having an anti-jamming spring. The anti-jamming spring is configured and arranged to compress when the motor unit continues to apply a moving force to the movable part after the movable part reaches a lockup position. The controller is configured to set the motor unit output stroke to an operating movement range that is smaller than the prescribed maximum movement range so that the anti-jamming biasing element remains uncompressed during normal shifting operation.

Abstract: A bicycle display device is configured to accurately verify an amount of adjustment occurring when performing a fine adjustment of a transmission position of a transmission device. The bicycle display device is mounted on a bicycle, and includes a mounting part and a display element. The mounting part is attachable to a brake bracket of the bicycle. The display element is supported by the mounting part, and is configured and arranged to display a fine adjustment display screen for indicating the amount of adjustment when adjusting the transmission position of a transmission device such as a rear derailleur.

Abstract: A derailleur control apparatus comprises a control unit that receives shift control signals. The control unit provides a first signal to operate the derailleur a first distance from a first sprocket to a second sprocket in response to a first shift control signal received while operating in a riding mode, and the control unit provides a second signal to operate the derailleur a second distance less than the first distance in response to a second shift control signal received while operating in the riding mode.

Abstract: A bicycle component position correcting device is basically provided with a first sensor, a second sensor, a comparison unit and a position adjuster. The first sensor detects a current absolute value of a positioning angle of a movable part of a bicycle component. The second sensor detects both a movement direction of the movable part and an amount of movement of the movable part. The comparison unit compares the current absolute value of the positioning angle of the movable part to a prestored reference value of the positioning angle of the movable part in response to a component operation command. The position adjuster selectively outputs an adjustment command to the movable part that adjusts the absolute value of the positioning angle of the movable part in accordance with both detected results of the first and second sensors.

Abstract: A bicycle component calibration device and method are provided that assist the user in determining that an adjustment was made. Basically, when a calibration command in inputted to indicate a selected adjustment amount in a selected adjustment direction, the bicycle component (e.g., a derailleur) initially moves farther than the selected adjustment amount in a first direction by an adjustment indicating amount in response to the calibration command, and then subsequently moves the bicycle component in a second direction to the selected adjustment position in which the second direction is opposite to the first direction. The adjustment indicating amount is greater than the selected adjustment amount of the calibration command. Finally, the selected adjustment position is set as an adjusted position of the bicycle component.

Abstract: An apparatus for adjusting a position of a bicycle control device comprises a memory that stores a plurality of operating position values corresponding to a plurality of operating positions, a manually operated adjustment value providing unit that provides an adjustment value, and an updating unit. The updating unit provides a first updated operating position value from a first operating position value from the plurality of operating position values based on the adjustment value, and the updating unit provides a second updated operating position value from a different second operating position value from the plurality of operating position values based on the adjustment value.

Abstract: A bicycle signal generating apparatus comprises an input unit and a signal generating unit. The input unit receives a first input signal and a second input signal, wherein the first input signal corresponds to a first operation of a bicycle device and the second input signal corresponds to a second operation of the bicycle device. The signal generating unit generates a first output signal having a first pattern from the first input signal, and the signal generating unit generates a second output signal having a second pattern from the second input signal. The first pattern is different from the second pattern.

Abstract: An apparatus for controlling a gear shift device comprises a gear shift controller that operates the gear shift device from a first gear position to a second gear position during a gear shift operation, a movement sensor that detects movement of the gear shift device, a timer, and a gear shift stopping unit that provides a signal to the gear shift controller to stop the gear shift operation when the timer measures a first time interval during which the movement sensor does not sense movement of the gear shift device.

Abstract: An electric derailleur has a motor unit having a derailleur motor with an output shaft, a position control mechanism and a controller. The output shaft is rotated through a moveable range including a first derailleur shift position and a second derailleur shift position. The position control mechanism is configured and arranged to provide a position signal indicative of an angular position of the output shaft. The controller detects a predetermined lockup position of the derailleur motor occurring at one of the first and second derailleur shift positions. The controller also sets a predetermined stop position for the derailleur motor that is calculated distance prior to the lockup position based on the position signal of the position control mechanism. Thus, the derailleur motor can be calibrated such that a new stop position is set that prevents an overcurrent from occurring in the motor.

Abstract: A bicycle shift control apparatus comprises a threshold value setting unit that sets a threshold value of a running condition for shifting a bicycle transmission, a decision unit that decides if a current running condition value passes the threshold value, and a tentative shift unit that sets a tentative shift of the bicycle transmission when the decision unit decides that the current running condition value passes the threshold value. A canceling unit cancels the tentative shift if the decision unit decides that the current running condition value varies from a previous running condition value by a determined value.

Abstract: A bicycle gear shifting control apparatus has a manually operated shift device, a first gear shifting operation executing component, and a second gear shifting operation executing component. The manually operated shift device operates a front derailleur to shift gears. In response to operation of the manually operated shift device, the first gear shifting operation executing component executes a first gear shifting operation to move the front derailleur from a first shift position of a first sprocket to a second shift position of second sprocket. The second gear shifting operation executing component executes a second gear shifting operation to move the front derailleur a very small amount from the second shift position to a post shift position upon determining that the shifting operation should proceed.

Abstract: A motorized bicycle derailleur assembly has a motor unit, a movable part (e.g., a motor linkage, a derailleur linkage and/or a chain guide) and a controller. The movable part is in response to activation of the motor unit within a mechanical stroke. The motor unit has a motor output stroke with a prescribed maximum movement range that is larger than the mechanical stroke of the movable part. The movable part has an anti-jamming arrangement having an anti-jamming spring. The anti-jamming spring is configured and arranged to compress when the motor unit continues to apply a moving force to the movable part after the movable part reaches a lockup position. The controller is configured to set the motor unit output stroke to an operating movement range that is smaller than the prescribed maximum movement range so that the anti-jamming biasing element remains uncompressed during normal shifting operation.

Abstract: A bicycle display device is configured to accurately verify an amount of adjustment occurring when performing a fine adjustment of a transmission position of a transmission device. The bicycle display device is mounted on a bicycle, and includes a mounting part and a display element. The mounting part is attachable to a brake bracket of the bicycle. The display element is supported by the mounting part, and is configured and arranged to display a fine adjustment display screen for indicating the amount of adjustment when adjusting the transmission position of a transmission device such as a rear derailleur.

Abstract: A bicycle signal generating apparatus comprises an input unit and a signal generating unit. The input unit receives a first input signal and a second input signal, wherein the first input signal corresponds to a first operation of a bicycle device and the second input signal corresponds to a second operation of the bicycle device. The signal generating unit generates a first output signal having a first pattern from the first input signal, and the signal generating unit generates a second output signal having a second pattern from the second input signal. The first pattern is different from the second pattern.

Abstract: A bicycle gear shifting control apparatus has a manually operated shift device, a first gear shifting operation executing component, and a second gear shifting operation executing component. The manually operated shift device operates a front derailleur to shift gears. In response to operation of the manually operated shift device, the first gear shifting operation executing component executes a first gear shifting operation to move the front derailleur from a first shift position of a first sprocket to a second shift position of second sprocket. The second gear shifting operation executing component executes a second gear shifting operation to move the front derailleur a very small amount from the second shift position to a post shift position upon determining that the shifting operation should proceed.

Abstract: A control apparatus is provided that facilitates the operation of a component that is subjected to stress from a stress-inducing component. The apparatus comprises an operation sensing unit that senses when the component should be operated; a stress reducing unit that provides a signal for reducing an amount of stress applied to the component from the stress-inducing component when the operating sensing unit senses that the component should be operated; and a control unit that provides a signal for operating the component a predetermined time after the stress reducing unit provides the signal.

Abstract: An apparatus for controlling a movable bicycle device comprises a power supply sensor that detects an abnormal power supply characteristic, and a control unit operatively coupled to the power supply sensor. The control unit provides a first signal to command the bicycle device to move in a first manner when the power supply has a first characteristic, and the control unit provides a second signal to command the bicycle device to move in a different second manner when the power supply has a second characteristic.

Abstract: An apparatus for controlling a gear shift device comprises a gear shift controller that operates the gear shift device from a first gear position to a second gear position during a gear shift operation, a movement sensor that detects movement of the gear shift device, a timer, and a gear shift stopping unit that provides a signal to the gear shift controller to stop the gear shift operation when the timer measures a first time interval during which the movement sensor does not sense movement of the gear shift device.