An axle assembly for a bicycle includes an axle having an inner wall extending along a length of the axle between a first end and a second end of the axle. The inner wall at least partially defines a first volume and a second volume within the axle. The first volume has a first diameter, and the second volume has a second diameter that is greater than the first diameter. The first volume is closer than the second volume to the first end of the axle. The axle assembly also includes a sensor attached to the inner wall of the axle within the second volume of the axle.

A crank spindle set-up for a vehicle. The set-up includes a crank spindle for receiving a force/torque from pedaling using crank arms attached to ends of the crank spindle; an output shaft for receiving a force and/or a torque from the crank spindle; a mechanical coupling having a tap between the ends of the crank spindle, for transmitting force/torque from the crank spindle to the output shaft; a first magnetic region on/in the output shaft for generating and outputting a first magnetic field that is a function of the state of mechanical stress of the output shaft; a second magnetic region on/in the crank spindle at an axial distance from the tap, for generating and outputting a second magnetic field that is a function of the state of mechanical stress of the crank spindle; and a sensor set-up for detecting a magnetic field outputted by the crank spindle set-up.

A human-powered vehicle control device is provided for suitably controlling a rotation state of a wheel of a human-powered vehicle. The human-powered vehicle control device includes a first detector and an electronic controller. The first detector is configured to detect information related to a driving force of the wheel of the human-powered vehicle on a road surface. The electronic controller is configured to change an operation state of a suspension device of the human-powered vehicle in response to a detection result of the first detector.

A human-powered vehicle control device is provided for suitably controlling a rotation state of a wheel of a human-powered vehicle. The human-powered vehicle control device includes a first detector and an electronic controller. The first detector is configured to detect information related to a driving force of the wheel of the human-powered vehicle on a road surface. The electronic controller is configured to change an operation state of a suspension device of the human-powered vehicle in response to a detection result of the first detector.

A method and a drive system for adapting a drive assist by an electric drive motor of an electrically drivable bicycle. The method includes: ascertaining an instantaneous rider torque exerted by a rider of the bicycle on a drive train of the bicycle, ascertaining rider torque statistics based on a plurality of rider torques ascertained over time, ascertaining an assignment rule between the rider torque statistics and a predefined target load spectrum for the bicycle, the assignment rule approximating the rider torque statistics to the target load spectrum, establishing a motor torque corresponding to the instantaneous rider torque, based on the assignment rule, and operating the electric drive by specifying the ascertained motor torque.

A method and a drive system for adapting a drive assist by an electric drive motor of an electrically drivable bicycle. The method includes: ascertaining an instantaneous rider torque exerted by a rider of the bicycle on a drive train of the bicycle, ascertaining rider torque statistics based on a plurality of rider torques ascertained over time, ascertaining an assignment rule between the rider torque statistics and a predefined target load spectrum for the bicycle, the assignment rule approximating the rider torque statistics to the target load spectrum, establishing a motor torque corresponding to the instantaneous rider torque, based on the assignment rule, and operating the electric drive by specifying the ascertained motor torque.

According to one embodiment of the present invention, provided is a power assisted driving system comprising: a measurement part for measuring an operation state of a crank; a control part for determining a voltage or current necessary for power assistance on the basis of the measured value of the measurement part; a motor part, to which the voltage or current is applied, for providing driving power; and a power supply part for providing electric power to components other than itself.

According to one embodiment of the present invention, provided is a power assisted driving system comprising: a measurement part for measuring an operation state of a crank; a control part for determining a voltage or current necessary for power assistance on the basis of the measured value of the measurement part; a motor part, to which the voltage or current is applied, for providing driving power; and a power supply part for providing electric power to components other than itself.

A control system for a human-powered vehicle includes a suspension device, at least one detector, an electronic controller. The suspension device includes a first suspension and a second suspension. The at least one detector is configured to detect information related to at least two conditions of the human-powered vehicle. The conditions include an operating state of the suspension device, a power input to the human-powered vehicle, a torque of a power transmission component, and a rotating state of the power transmission component. The electronic controller is configured to selectively control the suspension device between a first operating state and a second operating state in accordance with a detection result obtained by the at least one detector.

A control system for a human-powered vehicle includes a suspension device, at least one detector, an electronic controller. The suspension device includes a first suspension and a second suspension. The at least one detector is configured to detect information related to at least two conditions of the human-powered vehicle. The conditions include an operating state of the suspension device, a power input to the human-powered vehicle, a torque of a power transmission component, and a rotating state of the power transmission component. The electronic controller is configured to selectively control the suspension device between a first operating state and a second operating state in accordance with a detection result obtained by the at least one detector.