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 transmission control apparatus comprises a control unit that provides a first signal to operate a first derailleur a gear shift distance from a first origin sprocket to a first destination sprocket. The control unit receives a condition signal that indicates a condition resulting from at least one of the first derailleur and a second derailleur; and an adjustment controller moves the first derailleur an adjustment distance less than the gear shift distance in response to the condition signal.

Abstract: A derailleur position processing apparatus includes a derailleur moving member that moves with the derailleur; an analog signal providing mechanism operatively coupled to the derailleur moving member, wherein the analog signal providing mechanism provides an analog position signal in response to movement of the derailleur moving member; and a digital signal providing mechanism operatively coupled to the derailleur moving member, wherein the digital signal providing mechanism provides a digital position signal in response to movement of the derailleur moving member.

Abstract: A control apparatus is provided for a bicycle shift control device that uses power from a rotating member to assist the operation of a bicycle transmission, wherein the shift control device includes an input transmission member that requests assistance of the rotating member and an output transmission member that is assisted by the rotating member. The control apparatus comprises an input transmission member drive member that moves at least to a neutral position, to an upshift position and to a downshift position; an input drive member position sensor operatively coupled to the input transmission member drive member; and a motor operatively coupled to the input transmission member drive member. A control unit is operatively coupled to the input drive member position sensor and to the motor to move the input transmission member drive member to at least one of the neutral position, the upshift position and the downshift position.

Abstract: A bicycle shift control device includes a shift signal output unit for outputting shift signals and an inhibiting unit operatively coupled to the shift signal output unit for inhibiting the output of a second shift signal after the output of a first shift signal. In a more specific embodiment, the inhibiting unit inhibits the output of the second shift signal for a predetermined standby time after the output of the first shift signal.

Abstract: A bicycle control device is provided that uses power from a rotating member to assist the operation of a bicycle mechanism, wherein the control device includes an input member that requests assistance of the rotating member and an output member that is assisted by the rotating member, and wherein the input member electrically moves from a first position to a second position and then to a third position. A method of operating the control device comprises the steps of providing an input signal for moving the input member from the first position to the second position and then to the third position; sensing a position of the input member with an input position sensor; and determining whether the input position sensor indicates the input member is in the third position.

Abstract: A bicycle information processing apparatus comprises a memory for storing information related to the bicycle; an information processing unit that accesses the memory and processes information stored in the memory; and a power supply sensor that detects an ability of a power supply to supply power so that the memory may be accessed without damaging information stored therein.

Abstract: A bicycle power supply apparatus comprises a battery unit for storing power from a power supply and for supplying power to electrical components; a power switch operatively coupled to the battery unit for selectively switching power from the battery unit to the electrical components; and a switch control unit that receives power from the power supply and controls the power switch according to the power received from the power supply.

Abstract: A bicycle display apparatus comprises a computing component and a separate display component. The computing component is structured for attachment to the bicycle, calculates cumulative information produced from a bicycle-related running condition, and includes an information output for outputting the calculated cumulative information. The display component includes an information input that receives the cumulative information calculated by the computing component, and the display component displays the cumulative information calculated by the computing component.

Abstract: A derailleur position processing apparatus includes a derailleur moving member that moves with the derailleur; an analog signal providing mechanism operatively coupled to the derailleur moving member, wherein the analog signal providing mechanism provides an analog position signal in response to movement of the derailleur moving member; and a digital signal providing mechanism operatively coupled to the derailleur moving member, wherein the digital signal providing mechanism provides a digital position signal in response to movement of the derailleur moving member.

Abstract: A method of communicating data in a bicycle data processing system comprises the steps of communicating first information from a transmitter to a receiver, wherein the first information has a first rate of change; and communicating second information from the transmitter to the receiver a plurality of times, wherein the second information has a second rate of change that is greater than the first rate of change. A method of storing data in a bicycle data processing system comprises the steps of receiving a first data item a first time; storing a value of the first data item in a first memory; receiving the first data item a second time; comparing a value of the first data item received the first time with a value of the first data item received the second time; and storing the value of the first data item received the second time in the first memory when the value of the first data item received the first time substantially equals the value of the first data item received the second time.

Abstract: A control apparatus is provided for a bicycle shift control device that uses power from a rotating member to assist the operation of a bicycle transmission, wherein the shift control device includes an input transmission member that requests assistance of the rotating member and an output transmission member that is assisted by the rotating member. The control apparatus comprises an input transmission member drive member that moves at least to a neutral position, to an upshift position and to a downshift position; an input drive member position sensor operatively coupled to the input transmission member drive member; and a motor operatively coupled to the input transmission member drive member. A control unit is operatively coupled to the input drive member position sensor and to the motor to move the input transmission member drive member to at least one of the neutral position, the upshift position and the downshift position.

Abstract: A bicycle control device is provided that uses power from a rotating member to assist the operation of a bicycle mechanism, wherein the control device includes an input member that requests assistance of the rotating member and an output member that is assisted by the rotating member, and wherein the input member electrically moves from a first position to a second position and then to a third position. A method of operating the control device comprises the steps of providing an input signal for moving the input member from the first position to the second position and then to the third position; sensing a position of the input member with an input position sensor; and determining whether the input position sensor indicates the input member is in the third position.

Abstract: A method of communicating data in a bicycle data processing system comprises the steps of communicating first information from a transmitter to a receiver, wherein the first information has a first rate of change; and communicating second information from the transmitter to the receiver a plurality of times, wherein the second information has a second rate of change that is greater than the first rate of change. A method of storing data in a bicycle data processing system comprises the steps of receiving a first data item a first time; storing a value of the first data item in a first memory; receiving the first data item a second time; comparing a value of the first data item received the first time with a value of the first data item received the second time; and storing the value of the first data item received the second time in the first memory when the value of the first data item received the first time substantially equals the value of the first data item received the second time.

Abstract: A bicycle shift control device includes a shift signal output unit for outputting shift signals and an inhibiting unit operatively coupled to the shift signal output unit for inhibiting the output of a second shift signal after the output of a first shift signal. In a more specific embodiment, the inhibiting unit inhibits the output of the second shift signal for a predetermined standby time after the output of the first shift signal.