Bicycle controller and bicycle drive device
AssigneeShimano Inc.
InventorsYasuhiro TSUCHIZAWA, Hiroshi MATSUDA, Kazuhiro FUJII, Satoshi SHAHANA, Hiroyuki MIYOSHI, Mitsuru TAUCHI
Life of this patent
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Abstract
A bicycle controller and bicycle drive device that improves the stability of the behavior of a bicycle. The bicycle controller includes an electronic control unit that reduces the output of a motor, which is configured to assist in propulsion of the bicycle, in accordance with an angular acceleration of a rotary body. The rotary body is included in a human power transmission path extending from an input for human power to a coupling portion coupled to a drive wheel.
Claims32
A bicycle controller comprising:
- an electronic control unit configured to reduce an output of a motor, which is configured to assist in propulsion of a bicycle, in accordance with an angular acceleration of a rotary body included in a human power transmission path extending from an input portion for human power to a coupling portion coupled to a drive wheel.
A bicycle controller that controls a drive unit configured to transmit rotation of a crank to a motor, the bicycle controller comprising:
- an electronic control unit configured to control a load produced by the motor in accordance with an angular acceleration of a first rotary body included in a first power transmission path extending from an input for human power to a drive wheel or an angular acceleration of a second rotary body included in a second power transmission path extending from a motor, which is configured to assist in propulsion of the bicycle, to the drive wheel.
A bicycle controller comprising:
- an electronic control unit configured to control a motor, which is configured to assist in propulsion of a bicycle, in accordance with human power,
- the electronic control unit being configured to increase a response speed of the motor with respect to a change in the human power upon determining a drive wheel of the bicycle is one of slipping and spinning and, at the same time, the human power decreases.
Dependencies are inferred from the claim text.