A self-propelling trolley assembly has a battery; a wheel driven by an electric motor that is powered by the battery; a rotation position or velocity sensor arranged to sense a rotation position or rotation velocity of the wheel; a user interface; and a control unit to affect a rotation of the wheel according to particular drive modes including a feedback assisted propulsion drive mode; a free-wheeling drive mode; and a rocking drive mode. The drive modes are implemented using different drive voltage patterns to the electric motor, and a stator of the electric motor has a number of stator poles that are not an integer multiple of a number of rotor poles and the stator poles are grouped into at least three magnetically and electrically identical subsets that are mounted sequentially around an angular direction of the electric motor.

An autonomous gardening apparatus comprising: a housing; a drive motor provided within the housing and comprising a stator and a rotor, the stator comprising a stator core and a winding wound around the stator core; a moving assembly, driven by the rotor of the drive motor, to drive the autonomous gardening apparatus to walk; a control unit, controlling operations of the drive motor, the operations comprising at least controlling the rotor to operate at a target rotation speed; and an energy storage unit providing electricity to the drive motor and/or the control unit, wherein when an actual rotation speed of the rotor is greater than the target rotation speed, the rotor rotates and cuts the winding to generate induced electric energy, and the induced electric energy is transferred to the energy storage unit.

The bike's crank speed and crank position are sensed via a micro controller, torque sensor, gyro and accelerator disposed on the bike's crank. External power and control signals can be passed to and from the crank micro controller and the e-bike controller through a throttle connector of the e-bike controller via slip rings around the crank hub with and with pogo pin connectors connected to the respective slip rings. Throttle data can also be provided to the e-bike controller wirelessly via a wireless dongle coupled to the throttle connector of e-bike controller.

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.

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 vehicle includes an engine and alternator having a field coil and a plurality of output windings, a field current controller configured to receive an AC input and convert the AC input into a regulated DC output that is supplied to the field coil of the alternator, and a controller configured to monitor at least one operating parameter of the field current controller and to compare a monitored value of the at least one operating parameter to a threshold range.

A vehicle includes an engine and alternator having a field coil and a plurality of output windings, a field current controller configured to receive an AC input and convert the AC input into a regulated DC output that is supplied to the field coil of the alternator, and a controller configured to monitor at least one operating parameter of the field current controller and to compare a monitored value of the at least one operating parameter to a threshold range.

A control section is configured to perform a high-degree abnormal state control in which the control section terminates a specified shifting step for shifting a vehicle to an operable state and shifts the vehicle to an operation inhibiting state when an operation checking section determines that the vehicle is in a predetermined high-degree abnormal state, and the control section is configured to perform a low-degree abnormal state control different from a normal state control without terminating the specified shifting step, when the operation checking section determines that the vehicle is in a predetermined low-degree abnormal state different from the predetermined high-degree abnormal state, and perform the normal state control, when the operation checking section determines that the vehicle has been restored from the predetermined low-degree abnormal state to a state in which the vehicle is operable normally.

A control section is configured to perform a high-degree abnormal state control in which the control section terminates a specified shifting step for shifting a vehicle to an operable state and shifts the vehicle to an operation inhibiting state when an operation checking section determines that the vehicle is in a predetermined high-degree abnormal state, and the control section is configured to perform a low-degree abnormal state control different from a normal state control without terminating the specified shifting step, when the operation checking section determines that the vehicle is in a predetermined low-degree abnormal state different from the predetermined high-degree abnormal state, and perform the normal state control, when the operation checking section determines that the vehicle has been restored from the predetermined low-degree abnormal state to a state in which the vehicle is operable normally.

A gear drive balancing scooter is provided that has a left side, a right side, and a center section located between the left and right side. The center section is coupled to the right and left sides through a gear. As the left side moves with respect to the center section, the right side moves in an opposite direction with respect to the center section. Both sides have a respective wheel motor assembly that is used to balance the scooter. To steer the scooter, the user angles one side differently than the other side. The angle of each side determines the rate and direction that each wheel motor assembly rotates. An optional staff extends upwardly from the center section to provide stability.