US 11,840,315 B2
Gear changer adjustment and device
Sage Hahn, Chicago, IL (US)
Assigned to SRAM, LLC, Chicago, IL (US)
Filed by SRAM, LLC, Chicago, IL (US)
Filed on Apr. 30, 2020, as Appl. No. 16/863,409.
Claims priority of provisional application 62/841,924, filed on May 2, 2019.
Prior Publication US 2020/0346714 A1, Nov. 5, 2020
Int. Cl. B62M 9/122 (2010.01); B62M 9/1244 (2010.01); B62M 9/126 (2010.01)
CPC B62M 9/122 (2013.01) [B62M 9/126 (2013.01); B62M 9/1244 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An electromechanical derailleur for a bicycle, the electromechanical derailleur comprising:
a base member mountable to a frame of the bicycle;
a movable member movably coupled to the base member;
a chain guide assembly rotatably connected to the movable member; and
a processor configured to:
identify and store potential chain rasping positions based on sensor data;
identify a plurality of datasets, each dataset of the plurality of datasets representing expected chain rasping positions for each gear of a plurality of gears;
selecting an identified adjustment index from a plurality of adjustment indexes for the electromechanical derailleur based on an error value, the error value of each adjustment index of the plurality of adjustment indexes being determined by a comparison of the identified potential chain rasping positions and the plurality of datasets; and
operate the electromechanical derailleur based on the identified adjustment index,
wherein the plurality of adjustment indexes are prestored.