A drive power control device includes: a modeling error reduction unit configured to calculate a correction torque by performing high-pass filter processing on a correction amount calculated by a correction amount calculation unit; a control motor torque command value calculation unit configured to calculate a control motor torque command value by adding the correction torque to a motor torque command value; and a slip reduction control unit configured to perform, when the vehicle starts traveling or slip is detected, control to reduce slip by switching the cutoff frequency of a high-pass filter HPF to be low as compared with normal traveling.

An electric vehicle may comprise a board including first and second deck portions each configured to receive a left or right foot of a ride, a wheel assembly disposed between the deck portions and including a ground-contacting element, a motor assembly mounted to the board and configured to rotate the ground-contacting element around an axle to propel the electric vehicle, at least one sensor configured to measure orientation information of the board, and a motor controller configured to receive orientation information measured by the sensor and to cause the motor assembly to propel the electric vehicle based on the orientation information. The electric vehicle may include exactly one ground-contacting element, and the motor may be a hub motor.

A vehicle control device includes motors that respectively drive front and rear, left and right wheels independently, wheel speed sensors that detect rotation speeds of the respective wheels, motor rotation speed sensors that detect rotation speeds of the motors corresponding to the respective wheels, a slip determination module that sets, as a base rotation speed, a lowest rotation speed, and performs slip determination on each wheel on the basis of the base rotation speed and the rotation speeds of the motors, a rotation speed control module that performs torque down, and calculates requested torques of the motors from redistributed torques, and a redistribution control module that redistributes a torque down amount of the slipping wheel to a non-slipping wheel to calculate the redistributed torques.

A rotatable LIDAR device including contactless electrical couplings is disclosed. An example rotatable LIDAR device includes a vehicle electrical coupling including (i) a first conductive ring, (ii) a second conductive ring, and (iii) a first coil. The example rotatable LIDAR device further includes a LIDAR electrical coupling including (i) a third conductive ring, (ii) a fourth conductive ring, and (iii) a second coil. The example rotatable LIDAR device still further includes a rotatable LIDAR electrically coupled to the LIDAR electrical coupling. The first conductive ring and the third conductive ring form a first capacitor configured to transmit communications to the rotatable LIDAR, the second conductive ring and the fourth conductive ring form a second capacitor configured to transmit communications from the rotatable LIDAR, and the first coil and the second coil form a transformer configured to provide power to the rotatable LIDAR.

A rotatable LIDAR device including contactless electrical couplings is disclosed. An example rotatable LIDAR device includes a vehicle electrical coupling including (i) a first conductive ring, (ii) a second conductive ring, and (iii) a first coil. The example rotatable LIDAR device further includes a LIDAR electrical coupling including (i) a third conductive ring, (ii) a fourth conductive ring, and (iii) a second coil. The example rotatable LIDAR device still further includes a rotatable LIDAR electrically coupled to the LIDAR electrical coupling. The first conductive ring and the third conductive ring form a first capacitor configured to transmit communications to the rotatable LIDAR, the second conductive ring and the fourth conductive ring form a second capacitor configured to transmit communications from the rotatable LIDAR, and the first coil and the second coil form a transformer configured to provide power to the rotatable LIDAR.

A system including a drone device comprising securable compartments, each of the securable compartments lockable and configured to be unlocked by a user or a remote device is provided. The system also includes a series of sensors provided with the drone device and configured to assess health attributes of the user while the drone is positioned proximate the user and a remote computing system configured to receive sensed information from the drone device and assess health of the user, wherein the remote computing system holographically displays health attributes of the user. The drone device travels to the user to provide or receive healthcare related objects to or from the user. The series of sensors comprise at least one audio sensor and at least one video sensor configured to assess user health attributes about the user's body in a contactless manner based on both audio and visual health attribute readings.

An electric vehicle may comprise a board including first and second deck portions each configured to receive a left or right foot of a ride, a wheel assembly disposed between the deck portions and including a ground-contacting element, a motor assembly mounted to the board and configured to rotate the ground-contacting element around an axle to propel the electric vehicle, at least one sensor configured to measure orientation information of the board, and a motor controller configured to receive orientation information measured by the sensor and to cause the motor assembly to propel the electric vehicle based on the orientation information. The electric vehicle may include exactly one ground-contacting element, and the motor may be a hub motor.

A system and method for controlling an environmentally-friendly vehicle perform a safety function by blocking a high voltage output of a high voltage battery at the time of a rear-lateral side collision of the environmentally-friendly vehicle. The high voltage blocking function is smoothly performed at the time of the rear-lateral side collision accident by determining a rear-lateral side collision of the environmentally-friendly vehicle using a blind spot detection sensor, a lane change alert sensor, or a rear cross traffic alert sensor, along with a yaw rate sensor that detects a yaw rate, and turning off a relay of the high voltage battery at a moment when the rear-lateral side collision is determined.

The present disclosure provides a hands-free, self-balancing vehicle including a tiltable platform for a rider to stand on. The tiltable platform may tilt in any direction and direct the direction of motion of the vehicle. The vehicle is compact and may be disassembled for easy portability.

An electric vehicle may comprise a board including first and second deck portions each configured to receive a left or right foot of a ride, a wheel assembly disposed between the deck portions and including a ground-contacting element, a motor assembly mounted to the board and configured to rotate the ground-contacting element around an axle to propel the electric vehicle, at least one sensor configured to measure orientation information of the board, and a motor controller configured to receive orientation information measured by the sensor and to cause the motor assembly to propel the electric vehicle based on the orientation information. The electric vehicle may include exactly one ground-contacting element, and the motor may be a hub motor.