A system, method, and device for operations of an electrically motorized vehicle. The vehicle can utilize an electrically motorized wheel to convert a non-motorized wheeled vehicle to an electrically motorized wheeled vehicle. One system includes a server in communication with the device of each of a plurality of electrically motorized wheels, the server operable to track a position of each of the electrically motorized wheels and communicate the position thereof to a transportation network.

A system, method, and device for operations of an electrically motorized vehicle. The vehicle can utilize an electrically motorized wheel to convert a non-motorized wheeled vehicle to an electrically motorized wheeled vehicle. One system includes a server in communication with the device of each of a plurality of electrically motorized wheels, the server operable to track a position of each of the electrically motorized wheels and communicate the position thereof to a transportation network.

A detection device includes sensor device configured to obtain environmental information about surroundings of a small vehicle, an output unit outputting the environmental information to a control device of the small vehicle, and a mount configured to be attached to a rider of the small vehicle so as to hold the sensor device and the output device.

A detection device includes sensor device configured to obtain environmental information about surroundings of a small vehicle, an output unit outputting the environmental information to a control device of the small vehicle, and a mount configured to be attached to a rider of the small vehicle so as to hold the sensor device and the output device.

A human-powered vehicle drive unit that reduces loss of human driving force includes an electric motor, a crankshaft, an output portion, a speed reducer, and a clutch. The electric motor is configured to assist in propulsion of a human-powered vehicle. The output portion is coupled to the crankshaft. The speed reducer reduces a rotational speed of the electric motor in multiple steps. The clutch is provided between the output portion and the speed reducer. In a case in which the crankshaft rotates in a first rotational direction, the output portion is configured to rotate in the first rotational direction. In a case in which the crankshaft rotates in a second rotational direction, the output portion is configured to rotate in the second rotational direction. The clutch is configured to transmit a rotational force of the electric motor to the output portion from the speed reducer.

A human-powered vehicle drive unit that reduces loss of human driving force includes an electric motor, a crankshaft, an output portion, a speed reducer, and a clutch. The electric motor is configured to assist in propulsion of a human-powered vehicle. The output portion is coupled to the crankshaft. The speed reducer reduces a rotational speed of the electric motor in multiple steps. The clutch is provided between the output portion and the speed reducer. In a case in which the crankshaft rotates in a first rotational direction, the output portion is configured to rotate in the first rotational direction. In a case in which the crankshaft rotates in a second rotational direction, the output portion is configured to rotate in the second rotational direction. The clutch is configured to transmit a rotational force of the electric motor to the output portion from the speed reducer.

An electric power assist system generates an appropriate level of assist power while an electric assist vehicle is running on a slope and includes an electric motor that generates an assist power to assist human power of a rider of the electric assist vehicle, a controller that controls a magnitude of the assist power to be generated by the electric motor, and an acceleration sensor that outputs an acceleration signal representing an acceleration in a travel direction of the electric assist vehicle. The controller acquires speed information representing a running speed of the electric assist vehicle based on an external signal, detects an inclination angle of a road surface based on the speed information and the acceleration signal, and causes the electric motor to generate an assist power of a magnitude in accordance with the inclination angle.

A determination device is for a human-powered vehicle. The determination device includes a processor that is configured to obtain information related to a rotational speed of an input rotational shaft of the human-powered vehicle and information related to a rotational speed of a wheel of the human-powered vehicle to determine a predetermined state in accordance with a varied amount of the rotational speed of the input rotational shaft and a varied amount of the rotational speed of the wheel in a state in which a human driving force that is applied to the human-powered vehicle is greater than or equal to a predetermined threshold value.

A determination device is for a human-powered vehicle. The determination device includes a processor that is configured to obtain information related to a rotational speed of an input rotational shaft of the human-powered vehicle and information related to a rotational speed of a wheel of the human-powered vehicle to determine a predetermined state in accordance with a varied amount of the rotational speed of the input rotational shaft and a varied amount of the rotational speed of the wheel in a state in which a human driving force that is applied to the human-powered vehicle is greater than or equal to a predetermined threshold value.

The objective is to realize a rotation storage device with a lightweight and straightforward configuration that can release the energy of various urging means, typically a flat coil spring, over a more extended period and increase the urging force. The rotation storage device includes a plurality of single unit rotation storage devices that comprise of an urging means for urging of the rotational force and a one-way bearing with one end of the urging means fixed to one of its outer ring or inner ring, wherein a plurality of single unit rotation storage devices are characterized in that the outer ring and inner ring of the one-way bearings are connected, the other end of the urging means connected to one end of the urging means of the adjacent unit rotation storage device, and the rotation force is output between the outer ring and inner ring of the one-way bearing.