Electronic shifting systems and methods
First Claim
1. A wireless control system for a bicycle, comprising:
- at least one shift actuator generating an input signal when actuated;
a master control unit transmitting a shift signal responsive to the input signal;
at least one electromechanical gear changer including a gear changer control unit, the gear changer control unit receiving the shift signal from the master control unit and controlling the at least one electromechanical gear changer corresponding to the received shift signal, the gear changer control unit listening for the shift signal during a part of an awake mode cycle time, the master control unit transmitting the shift signal for a message duration time which is greater than the awake mode cycle time.
1 Assignment
0 Petitions
Reexamination
Accused Products
Abstract
The invention provides a wireless control system for a bicycle, including at least one shift actuator generating an input signal when actuated and a master control unit transmitting a shift signal responsive to the input signal. At least one electromechanical gear changer is provided and includes a gear changer control unit. The gear changer control unit receives the shift signal from the master control unit and controls the at least one electromechanical gear changer corresponding to the received shift signal. The gear changer control unit listens for the shift signal during a part of an awake mode cycle time, the master control unit transmitting the shift signal for a message duration time which is greater than the awake mode cycle time.
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Citations
18 Claims
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1. A wireless control system for a bicycle, comprising:
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at least one shift actuator generating an input signal when actuated; a master control unit transmitting a shift signal responsive to the input signal; at least one electromechanical gear changer including a gear changer control unit, the gear changer control unit receiving the shift signal from the master control unit and controlling the at least one electromechanical gear changer corresponding to the received shift signal, the gear changer control unit listening for the shift signal during a part of an awake mode cycle time, the master control unit transmitting the shift signal for a message duration time which is greater than the awake mode cycle time. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An electromechanical gear changer actuable by a motor to change gears on a bicycle, comprising:
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a base part attachable to a bicycle; a movable part; a chain guide attached to the movable part; a linkage interconnecting the base part to the movable part to enable the movable part to move relative to the base part; the motor disposed on the electromechanical gear changer; a gear changer control unit disposed on the electromechanical gear changer for operating the gear changer; and a wake sensor connected to the gear changer control unit, which when actuated causes the gear changer control unit to become operational, wherein the wake sensor is a vibration sensor. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A bicycle wireless control system for controlling a derailleur on a bicycle, comprising:
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a mechanism for generating an input signal when actuated; a master control unit in operative communication with the mechanism, the master control unit including a transmitter that transmits a command signal responsive to the input signal to operate the derailleur; a slave control unit including a receiver for communicating with the master control unit; and a wake sensor connected to the bicycle, which when actuated causes the receiver to become operational. - View Dependent Claims (15, 16, 17, 18)
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Specification