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US 12,722,738 B2Granted
Rotational-position sensor unit, human-powered vehicle controller, and human-powered vehicle system
AssigneeShimano Inc.
InventorsYasuyuki Komada, Yusuke Oda, Koichi Kajiki, Kazuki Into, Tomohiro Takahashi
Life of this patent
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Abstract
A rotational-position sensor unit comprises sensor circuitry configured to detect at least one of: at least one reference sprocket tooth of a sprocket of a human-powered vehicle; and a space provided between adjacent two teeth including the at least one reference sprocket tooth.
Claims21
A rotational-position sensor unit comprising:
- sensor circuitry configured to detect at least one of
- at least one reference sprocket tooth of a sprocket of a human-powered vehicle, and
- a space provided between adjacent two teeth including the at least one reference sprocket tooth, wherein
- the sensor circuitry is configured to detect a rotational position of a sprocket assembly including a plurality of sprockets, and
- the reference tooth is provided on the sprocket having the smallest diameter among the plurality of sprockets.
2 more elements
A rotational-position sensor unit comprising:
- sensor circuitry configured to detect at least one of
- at least one reference sprocket tooth of a sprocket of a human-powered vehicle, and
- a space provided between adjacent two teeth including the at least one reference sprocket tooth, wherein
- the sprocket includes a plurality of sprocket teeth including the at least one reference sprocket tooth and at least one sprocket tooth,
- the at least one reference sprocket tooth has a first character causing the sensor circuitry to output a first detection result,
- at least one of the at least one sprocket tooth has a second character which is different from the first character and which causes the sensor circuitry to output a second detection result different from the first detection result, and
- the first character includes one of
- an opening so that the first character is different from the second character of the at least one sprocket tooth, and
- an opening and a first member provided in the opening so that the first character is different from the second character of the at least one sprocket tooth.
6 more elements
A human-powered vehicle controller comprising:
- electronic controller circuitry configured to control a human-powered vehicle based on a detection result of sensor circuitry of a rotational-position sensor unit configured to detect at least one of:
- at least one reference sprocket tooth of a sprocket of the human-powered vehicle;
- and
- a space provided between adjacent two teeth including the at least one reference sprocket tooth, wherein
- the electronic controller circuitry is configured to calculate a rotational position of the sprocket based on the detection result of the sensor circuitry.
2 more elements
A rotational-position sensor unit comprising:
- sensor circuitry configured to detect a reference shape of a reference portion of at least one of a sprocket and a lock member, the reference shape of the reference portion being different from a shape of another portion of the at least one of the sprocket and the lock member, wherein
- the reference shape includes an opening provided to the at least one of the sprocket and the lock member, the opening being provided along an axial direction of the sprocket.
A human-powered vehicle controller comprising:
- electronic controller circuitry configured to control a human-powered vehicle based on a detection result of sensor circuitry of a rotational-position sensor unit configured to detect at least one of:
- at least one reference sprocket tooth of a sprocket of the human-powered vehicle;
- and
- a space provided between adjacent two teeth including the at least one reference sprocket tooth, wherein
- the electronic controller circuitry is configured to control a gear changer of the human-powered vehicle based on the detection result of the sensor circuitry.
2 more elements
Dependencies are inferred from the claim text.