Sram Corporation

Todd Squires

Brian T Jordan

Sage Hahn

Alexander Kon-I Ho

Mason Pluimer

A wireless control system for a bicycle may include a base part attachable to a bicycle and a movable part. The control system may also include an electric motor disposed on the electromechanical component and a control unit disposed on the electromechanical component for operating the electric motor to operate the electromechanical component, the control unit including a wireless receiver. The control system includes a wake sensor connected to the control unit, the wake sensor configured to communicate a wake signal to the control unit.

Electromechanical shifting systems and methods

A wireless control system for a bicycle may include a base part attachable to a bicycle and a movable part. The control system may also include an electric motor disposed on the electromechanical component and a control unit disposed on the electromechanical component for operating the electric motor to operate the electromechanical component, the control unit including a wireless receiver. The control system includes a wake sensor connected to the control unit, the wake sensor configured to cause the control unit and the wireless receiver to become operational in response to detected vibrations of the bicycle.

The invention provides a wireless control system for a bicycle, including at least one actuator having at least a pressed state and a released state, and a control unit configured to generate a first control signal responsive to the pressed state and a second control signal responsive to the released state, and to transmit the first control signal and the second control signal to at least one bicycle component.

The invention provides a wireless control system for a bicycle, including at least one shift unit including a shift actuator, and a master control unit in communication with the shift actuator. The master control unit transmits on a channel and listens for noise on the channel. When the master control unit receives an input signal from the shift actuator, the master control unit transmits a plurality of shift signals corresponding to the input signal for a message duration time if the channel is free of noise.

Electronic shifting systems and methods

A wireless control system for a bicycle, comprising a first shift control unit for a component of a bicycle, the first control unit comprising a radio configured to receive control signals, wirelessly transmitted by a second control unit of the bicycle; the radio operable to receive the control signals only when the radio is operating in a listen mode; and a processor configured to: activate the listen mode of the radio for a first length of time; detect, with the radio, a noise level during the first length of time; and extend the activation of the listen mode for a first extended time period when the noise level achieves a noise level threshold.

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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Bull Valley, IL, United States of America

Todd Squires