An earpiece includes an earpiece housing, a processor disposed within the ear piece housing, at least one inertial sensor disposed within the earpiece housing, the at least one inertial sensor operatively connected to the processor, and a wireless transceiver disposed within the earpiece housing and operatively connected to the processor. The earpiece is configured to exchange inertial data with a vehicle having one or more inertial sensors. The vehicle may be a motorcycle, moped, scooter, bicycle, electric bicycle, personal transporter, hover board, or other type of vehicle.

An electric self-balancing vehicle including a top cover, a bottom cover, an inner cover, a rotating mechanism, two wheels, two hub motors, a plurality of sensors, a power supply, and a controller is described herein. The top cover includes a first top cover and a second top cover disposed symmetrically and rotatable relative to each other. The bottom cover is fixed to the top cover and includes a first bottom cover and a second bottom cover disposed symmetrically and rotatable relative to each other. The inner cover is fixed between the top cover and the bottom cover and includes a first inner cover and a second inner cover disposed symmetrically and rotatable relative to each other. The rotating mechanism is fixed between the first inner cover and the second inner cover. The two wheels are rotatably fixed at two sides of the inner cover, respectively. The two hub motors are fixed in the two wheels, respectively. The plurality of sensors is disposed between the bottom cover and the inner cover, respectively. The power supply is fixed between the first bottom cover and the first inner cover. The controller is fixed between the second bottom cover and the second inner cover, the controller is electrically connected with the plurality of sensors, the power supply, and the hub motors, and the controller controls the hub motors to drive the corresponding wheels to rotate according to sensing signals transmitted by the sensors.

A method for classifying an accident event of a two-wheeled vehicle, in particular a bicycle. The method is able to run as an algorithm on a device having an evaluation unit in order to indicate to the driver of the two-wheeled vehicle or to a third party a collision or fall of the two-wheeled vehicle with the aid of correspondingly generated and/or transmitted information. The device may be used for a two-wheeled vehicle such as a bicycle and in particular for an electric bicycle. The use is naturally also possible for a motorcycle or some other single-track vehicle.

A control device wearable by a bicycle rider, the control device including at least one control sensor generating input signals when actuated. A control processor is connected to the at least one control sensor generating control signals responsive to the input signals. A wireless transmitter is in communication with the processor transmitting the control signals and a power source is connected to the shift control processor and the wireless transmitter. The control device may one or more of a control gear changer, one or more suspension component, and other electronically-controllable components or systems.

A control device wearable by a bicycle rider, the control device including at least one control sensor generating input signals when actuated. A control processor is connected to the at least one control sensor generating control signals responsive to the input signals. A wireless transmitter is in communication with the processor transmitting the control signals and a power source is connected to the shift control processor and the wireless transmitter. The control device may one or more of a control gear changer, one or more suspension component, and other electronically-controllable components or systems.

An automatic bicycle shifter making use of a global positioning system (GPS) altimeter for sensing road inclination, an accelerometer for sensing bicycle acceleration and a hot wire anemometer for sensing wind load, and through application of classical law of conservation of energy attenuates or appreciate automatic shifting speeds in real time to maintain a rider standard shifting torque. Automatic bicycle shifter is additionally provided with capability to sense, record, and interpret rider automatic shift override commands and further adjust automatic shift criteria to rider preference.

An automatic bicycle shifter making use of a global positioning system (GPS) altimeter for sensing road inclination, an accelerometer for sensing bicycle acceleration and a hot wire anemometer for sensing wind load, and through application of classical law of conservation of energy attenuates or appreciate automatic shifting speeds in real time to maintain a rider standard shifting torque. Automatic bicycle shifter is additionally provided with capability to sense, record, and interpret rider automatic shift override commands and further adjust automatic shift criteria to rider preference.

A method for controlling an electric motor as a drive motor of a bicycle. The method includes: a sensor-based detection of pushing of the bicycle by the user; acquiring an input of a user for activating the push-assistance operating mode, the acquisition taking place as a function of the detected pushing of the bicycle; and generating a motor torque for driving the bicycle in the push-assistance operating mode as a function of the detected pushing and the acquired input of the user.

A method for controlling an electric motor as a drive motor of a bicycle. The method includes: a sensor-based detection of pushing of the bicycle by the user; acquiring an input of a user for activating the push-assistance operating mode, the acquisition taking place as a function of the detected pushing of the bicycle; and generating a motor torque for driving the bicycle in the push-assistance operating mode as a function of the detected pushing and the acquired input of the user.

The bike (10) comprises a frame provided with a front wheel (12) oriented by a handlebar, a saddle (39) and a crankset. The bike (10) further comprises two pivoting rear uprights (18, 19) each carrying a rear wheel (22, 23), the pivoting rear uprights being mounted by independent pivot links on the frame.

The crankset actuates two drive means (26, 27, 59, 60) independent of the rear wheels. The drive means of each rear wheel comprises a free wheel (59, 60). The drive means are configured such that, in a bend, only the rear wheel located on the inside of the bend is driven by the crankset, the rear wheel located on the outside of the bend freewheeling and not being driven by the crankset.