3464results about "Roller skates" patented technology

The present invention relates to a vehicle which can travel in the front and back direction and which can turn by right and left wheels rotated when a rider riding on a step-board moves the position of rider's balance from the center of a vehicle base.A vehicle which can be steered based on movement of balance according to the present invention includes left and right wheels 4L and 4R located at least on the same axis, first and second drive motors 5L and 5R for rotating the left and right wheels 4L, 4R, a vehicle base 2 having the left and right wheels located at its left and right sides and which has the first and second drive motors mounted thereon, a step-board 3 located above the vehicle base 2 and on which a rider rides, pressure sensors 6L, 6R, 7L, 7R interposed between the vehicle base and the step-board to detect movement of rider's balance and a drive control means 10 for controlling driving of the first and second drive motors based on detected signals from the pressure sensors to enable the vehicle to travel straight and / or turn.According to the present invention, it is possible for the rider to run the vehicle in the front and back direction and to turn the vehicle in the left and right direction by only moving rider's weight.

A controller for providing user input of a desired direction of motion or orientation for a transporter. The controller has an input for receiving specification by a user of a value based on a detected body orientation of the user. User-specified input may be conveyed by the user using any of a large variety of input modalities, including: ultrasonic body position sensing; foot force sensing; handlebar lean; active handlebar; mechanical sensing of body position; and linear slide directional input. An apparatus that may include an active handlebar is provided for prompting a rider to be positioned on a vehicle in such a manner as to reduce lateral instability due to lateral acceleration of the vehicle.

A skateboard having a front board, a rear board, a connecting element which interconnects the front board and the rear board in a spaced relationship, at least one direction-caster mounted on the underside of each of the front board and the rear board; and the connecting element comprises an elastic member so that the connecting element can be elastically twisted by application of at least one of a twisting or bending force and restores to its original shape when the force is removed.

An electric balance 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 bottom cover is fixed to the top cover. The inner cover is fixed between the top cover and the bottom 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.

A traveling apparatus suitable for use in a two-wheeled traveling vehicle on which a man rides, and a method for controlling thereof, are provided. An abrupt turn, which can make a rider fall down, is prevented, and stable traveling is obtained without fail. Specifically, the apparatus and method efficiently charge regenerative energy that is generated when decelerating or traveling on a downward slope. The apparatus and method include motors for driving a plurality of wheels independently, a chassis for connecting the plurality of wheels, in which sensors for detecting a shift of barycenter of a rider are provided, and a controller for restricting a rotational velocity of each of the plurality of wheels to a predetermined limited value, wherein turning is performed in accordance with the shift of a barycentric position.

The present invention relates to a vehicle which can travel in the front and back direction and which can turn by right and left wheels rotated when a rider riding on a step-board moves the position of rider's balance from the center of a vehicle base. A vehicle which can be steered based on movement of balance according to the present invention includes left and right wheels 4L and 4R located at least on the same axis, first and second drive motors 5L and 5R for rotating the left and right wheels 4L, 4R, a vehicle base 2 having the left and right wheels located at its left and right sides and which has the first and second drive motors mounted thereon, a step-board 3 located above the vehicle base 2 and on which a rider rides, pressure sensors 6L, 6R, 7L, 7R interposed between the vehicle base and the step-board to detect movement of rider's balance and a drive control means 10 for controlling driving of the first and second drive motors based on detected signals from the pressure sensors to enable the vehicle to travel straight and / or turn. According to the present invention, it is possible for the rider to run the vehicle in the front and back direction and to turn the vehicle in the left and right direction by only moving rider's weight.

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 bottom cover is fixed to the top cover. The inner cover is fixed between the top cover and the bottom 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.

In a coaxial two-wheeled vehicle, an attitude controller (84) calculates motor torque Tgyr for maintaining a base so that it has a target angle from deviation between base angle command θref serving as attitude command and current base angle θ0 calculated by using a gyro sensor (13) and an acceleration sensor (14). On the other hand, at a position proportional controller (86R), a differentiator (88R) and a velocity proportional controller (89R), there is performed PD control with respect to deviation between rotation position command Prefr of a motor rotor (92R) for right wheel and current rotation position θr of a motor rotor (92R). A current control amplifier (91R) generates motor current on the basis of added value of motor torque which is the control result and estimated load torque T1 calculated by using pressure sensors to drive the motor rotor (92R).

A traveling apparatus and a method for controlling thereof performs efficient charging with regenerative electrical power. An angle θ0 of a table (not illustrated) is detected by a gyroscopic sensor and an acceleration sensor to be supplied to a central control unit. Then, positional command signals Pref1(t) and Pref2(t) formed are supplied to motor control units which perform control of driving left and right motors respectively. Further, rotational positions θm1 and θm2 of the motors are respectively detected in rotary encoders, those det signals are fed back to the motor control units, and control is performed so as to comply with the positional command signals Pref1(t) and Pref2(t) formed in the central control unit. At the same time, a regenerative state is detected by comparing the rotational positions θm1 and θm2 with the positional command signals Pref1(t) and Pref2(t), and information thereon is transmitted to a regenerative charging circuit by serial communication to perform a control of discharging and charging a secondary battery (battery).

An electric skateboard is capable of detecting a load applied from a rider accurately without influence from various positions of the rider on the board and without influence from various road conditions. The electric skateboard includes a board arranged to receive a load from the rider, a load detection sensor arranged to detect the load received by the board, a front wheel provided on a lower surface of the board, an arm which rotatably supports the front wheel, a first frame connected with the arm, a second frame fixed to the board, and a shaft connecting the first and second frames. The load detection sensor is sandwiched by the first and second frames. A rear wheel is provided on the lower surface of the board and has a construction that is similar to that of the front wheel.