A left and right feet pedaling analysis system is disclosed, comprising a pedaling sensing device and an electronic carrier, wherein the pedaling sensing device includes one or more transmission units and one or more accelerometers which are applied to detect the acceleration change data during pedaling, and the pedaling sensing device or/and the electronic carrier can analyze the signals coming from the accelerometer during riding the bicycle in order to acquire the pedaling rotation number, the ratio of the left and right foot forces as well as the installation direction thereby understanding the pedaling distribution ratio of the left and right foot when riding; as such, it can help improve the pedaling skills and adjust the pedaling force mode so as to reduce the risk of injury caused by excessively unbalanced pedaling asymmetry.

A left and right feet pedaling analysis system is disclosed, comprising a pedaling sensing device and an electronic carrier, wherein the pedaling sensing device includes one or more transmission units and one or more accelerometers which are applied to detect the acceleration change data during pedaling, and the pedaling sensing device or/and the electronic carrier can analyze the signals coming from the accelerometer during riding the bicycle in order to acquire the pedaling rotation number, the ratio of the left and right foot forces as well as the installation direction thereby understanding the pedaling distribution ratio of the left and right foot when riding; as such, it can help improve the pedaling skills and adjust the pedaling force mode so as to reduce the risk of injury caused by excessively unbalanced pedaling asymmetry.

The present disclosure relates to a method and a device for safety driving. The method includes: acquiring riding data of a current user of a self-balancing vehicle; comparing the acquired riding data with riding data corresponding to a plurality of preset user levels; and determining a user level of the current user of the self-balancing vehicle according to a result of the comparing. The riding data includes one or more of the following data: a riding time, a riding distance, a shaking frequency, a shaking arc magnitude, and a shaking time.

A control device is provided to a human-powered vehicle. The control device includes an electronic controller. The electronic controller is configured to control an air pressure of a tire provided to the human-powered vehicle, based on at least one of a roughness of a road surface on which the human-powered vehicle is traveling or will travel, a slope state related to an advancing direction of the human-powered vehicle, a wet state of a road surface, a traveling state of the human-powered vehicle, and a state of a component mounted on the human-powered vehicle.

Various systems and methods associated with protecting a rider of an electric bicycle from hazards while riding their bicycle are described. In some embodiments, the systems and methods enhance the safety of the rider in response current detected conditions surrounding the rider, such as conditions associated with the route or path traveled by the rider, other vehicles within the route or path traveled by the rider, potential hazards within the route or path traveled by the rider, environmental conditions through which the rider is traveling, and so on.

A lighting system for a vehicle having a housing, a plurality of elements generating an intensity of light and a controller. The controller selectively changing the intensity of at least one of the plurality of elements based on a sensed condition.

An electronic device is provided to a human-powered vehicle. The electronic device basically includes an electronic controller. The electronic controller is configured to selectively operate in an operational state that includes a first operational state and a second operational state. The second operational state consumes more electric power than the first operational state. The electronic controller is configured to switch the operational state between the first operational state and the second operational state in accordance with a rotational amount of a rotational body included in a transmission path of a human driving force in the human-powered vehicle.

A fuel filling device of a motorcycle can receive a high pressure gas only when it is ensured that the motorcycle is in a stable position. The device includes a fuel tank that stores and/or supplies a high pressure gas and is mounted on the motorcycle, a filling port through which the high pressure gas is fed to the fuel tank, a center stand that swings between a raised position in which the center stand supports the motorcycle in an upright position and a retracted position, a stand sensor that senses that the center stand is in the raised position, and a fuel filling valve provided between the fuel tank and the filling port and allowing a flow of the high pressure gas between the fuel tank and the filling port if the stand sensor senses that the center stand is in the raised position.

A vehicle of the present disclosure may include at least one pair of opposing wheels coupled to a tiltable central chassis by a four-bar linkage or the like, such that the wheels are configured to tilt in unison with the central chassis. A steering actuator and/or a tilting actuator may be discretely controllable by an electronic controller of the vehicle. The controller may include processing logic configured to maintain alignment between a median plane of the chassis and a net force vector caused by gravity and any induced centrifugal forces. Various control algorithms may be utilized to steer the vehicle along a desired path, either autonomously or semi-autonomously.

A vehicle of the present disclosure may include at least one pair of opposing wheels coupled to a tiltable central chassis by a four-bar linkage or the like, such that the wheels are configured to tilt in unison with the central chassis. A steering actuator and/or a tilting actuator may be discretely controllable by an electronic controller of the vehicle. The controller may include processing logic configured to maintain alignment between a median plane of the chassis and a net force vector caused by gravity and any induced centrifugal forces. Various control algorithms may be utilized to steer the vehicle along a desired path, either autonomously or semi-autonomously.