Automatic Bicycle Gear Change

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Consumer Products

Automatic gear change for bicycle. Rotation sensor (magnetic or optical, counts teeth) on chain ring. Optimum pedal speed = 90 r.p.m. tired/fresh, athlete/slob, makes no difference. Gear changes to keep pedal speed optimum. Rear (and front maybe) mech has actuator (motor and screw on parallelogram) and position sensor. Box for electronics, battery, control. Action inhibited under back-pedal or no-pedal. Pedal slowly under free-wheel when approaching junction to set to bottom gear.

One less thing to think about while avoiding death by automobile.

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  • ABOUT THE ENTRANT

  • Name:
    Richard Mayo
  • Type of entry:
    individual
  • Profession:
    Engineer/Designer
  • Number of times previously entering contest:
    never
  • Richard's favorite design and analysis tools:
    HFSS
    Tanner
    Cadence
  • Richard's hobbies and activities:
    motorcycling, cycling,
  • Richard is inspired by:
    Stuff just bounces into my head.
  • Software used for this entry:
    Eagle PCB
  • Patent status:
    none