Patent ID: 6866279
Filing Date: 2005-03-15
Classification: B62M

Abstract:
1. An apparatus for controlling upshifting and downshifting of a bicycle transmission, wherein the apparatus comprises: a running condition detecting mechanism comprising a wheel speed detector that detects a running condition of the bicycle; wherein the wheel speed detector comprises an alternating current generator that rotates with a wheel of the bicycle; a threshold value setting mechanism that sets at least one of an upshift threshold value and a downshift threshold value for the running condition; a control mechanism that provides a signal that commands at least one of an upshift and a downshift when the running condition is beyond the corresponding one of the upshift threshold value and the downshift threshold value at both a first detection and a second detection, wherein the second detection occurs after the first detection; and wherein the control mechanism provides the signal after the second detection and not in a time interval between the first detection and the second detection.