发明名称 |
ELECTRIC BICYCLE TRANSMISSION SYSTEMS, METHODS, AND DEVICES |
摘要 |
A derailleur-based electronic transmission system for an electric bicycle comprises a wheel; a driven sprocket set coupled to the wheel via at least a first one-way clutch, the driven sprocket set comprising two or more concentric sprockets of different effective diameters; a drive chain configured to engage the driven sprocket set; an electronically controllable derailleur configured to move the drive chain among the two or more sprockets; a pedal crank configured to cause rotation of the driven sprocket set by providing a user pedal force to the driven sprocket set through at least a second one-way clutch and the drive chain; a motor configured to cause rotation of the driven sprocket set by providing an electromechanical force to the driven sprocket set through at least a the drive chain; and an electronic controller configured to, responsive to a determination that a shift should occur at a time when neither the pedal crank nor the motor is causing rotation of the driven sprocket: operate the motor to rotate the driven sprocket at a rotational speed less than or equal to a current rotational speed of the wheel; and operate the derailleur to cause the shift to occur while the driven sprocket is being rotated by the motor. |
申请公布号 |
WO2016130833(A1) |
申请公布日期 |
2016.08.18 |
申请号 |
WO2016US17593 |
申请日期 |
2016.02.11 |
申请人 |
CIVILIZED CYCLES INCORPORATED |
发明人 |
SCHIEFFELIN, Zachary |
分类号 |
B62M6/40;B60L11/18;B62M6/45;B62M9/06;B62M23/02;F16H7/06 |
主分类号 |
B62M6/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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