Shifting system for human-powered vehicle
AssigneeShimano Inc.
InventorsNaoki Fujimoto, Takeshi Ueda, Tsuyoshi Fukumori
Life of this patent
Estimating the term…
Abstract
A shifting system for a human-powered vehicle comprises a controller. The controller is configured to receive a driving torque and a cadence of the human-powered vehicle from at least one sensor. The controller is configured to determine a permitted shift timing based on the driving torque and the cadence. The controller is further configured to control a shift mechanism to perform a gear shift during the permitted shift timing in accordance with a permitted cadence range and a first threshold of the driving torque.
Claims19
A shifting system for a human-powered vehicle, comprising:
- a controller configured to:
- receive an input requesting a gear shift and a driving torque of the human-powered vehicle from at least one sensor;
- permit a shift mechanism to perform the gear shift in a state where the driving torque is equal to or greater than a first threshold;
- and
- prevent the shift mechanism from performing the gear shift in a state where the driving torque is less than the first threshold.
A shifting system for a human-powered vehicle, comprising:
- a controller configured to:
- receive a driving torque of the human-powered vehicle from at least one sensor;
- permit a shift mechanism to perform a gear shift in a state where the driving torque is equal to or greater than a first threshold;
- and
- prevent the shift mechanism from performing the gear shift in a state where the driving torque is less than the first threshold, wherein
- the controller is configured to receive a cadence of the human-powered vehicle from at least one sensor,
- the controller is configured to control the shift mechanism to perform the gear shift during a permitted shift timing, the permitted shift timing being based on the driving torque and the cadence,
- the permitted shift timing includes a first timing interval that has a first start and a first end, and
- the controller is configured to output a command signal for the gear shift to the shift mechanism if a current timing is between the first start and the first end of the first timing interval.
A shifting system for a human-powered vehicle, comprising:
- a controller configured to:
- receive a driving torque of the human-powered vehicle from at least one sensor;
- and
- control a shift mechanism to perform a gear shift during a permitted shift timing, the permitted shift timing being based on the driving torque, wherein
- the permitted shift timing includes a first timing interval that has a first start and a first end, and
- the controller is configured to output a command signal for the gear shift to the shift mechanism if a current timing is between the first start and the first end of the first timing interval.
A shifting system for a human-powered vehicle, comprising:
- a controller configured to:
- receive a driving torque of the human-powered vehicle from at least one sensor;
- permit a shift mechanism to perform a gear shift in a state where the driving torque is equal to or greater than a first threshold;
- and
- prevent the shift mechanism from performing the gear shift in a state where the driving torque is less than the first threshold, wherein
- the controller is configured to receive a shift input requesting the gear shift via a manual input device, and
- the controller is configured to permit the shift mechanism to perform the gear shift if the manual input device is actuated by a rider in the state where the driving torque is equal to or greater than the first threshold.
Dependencies are inferred from the claim text.