Abstract: An electric power transmission system may include: a power transmission antenna that constitutes a series resonator with an inductance component of L1 and a capacitance component of C1, and to which AC power is input; a power receiving antenna that constitutes a series resonator with an inductance component of L2 and a capacitance component of C2, and which receives electromagnetic energy from the power transmission antenna via electromagnetic fields; a rectifying unit that rectifies an output of the power receiving antenna to output DC power; and a load to which an output of the rectifying unit is input, wherein, when a coupling coefficient between the power transmission antenna and the power receiving antenna is k, if load resistance value R is used in a range that satisfies Rmin?R?Rmax, the following relationships are established: L 1 ? C 1 = L 2 ? C 2 ? ? and ( 2 ) L 1 C 1 > L 2 C 2 ? ? and ( 6 ) R m ? ? i ? ? n ? k ? L 2 C 2

Abstract: A vehicle includes a vehicle body having a steering section and a main body section connected together; a steerable wheel which is rotatably mounted to the steering section and which steers the vehicle body; a non-steerable wheel which is rotatably mounted to the main body section; a steering apparatus for inputting a steering instruction information; an inclination actuator apparatus for inclining the steering section or the main body section in a turning direction; a steering actuator apparatus for varying a steering angle of the steerable wheel based on the steering instruction information inputted from the steering apparatus; and a control apparatus which controls the inclination actuator apparatus and the steering actuator apparatus. The control apparatus controls a center of gravity to move in a steering direction included in the steering instruction information at an initial steering stage so that an acceleration toward turning-locus inner side is generated.

Abstract: The vehicle includes a vehicle body having a steering section and a drive section connected together; a steerable wheel which steers the vehicle body; a drive wheel which drives the vehicle body; an inclination actuator apparatus for inclining the steering section or the drive section in a turning direction; a plurality of sensors which detect lateral accelerations; yaw angular velocity detection means; vehicle speed detection means; and a control apparatus which controls the inclination of the vehicle body by controlling the inclination actuator apparatus. The control apparatus performs feedback control on the basis of the lateral accelerations, calculates a link angular velocity predicted value from the derivative value of the yaw angular velocity and the vehicle speed, and controls the inclination of the vehicle body by performing feedforward control while using the calculated link angular velocity predicted value.

Abstract: Provided is a power transmission system that can determine an optimal frequency for power transmission, and transmit power efficiently. The power transmission system of the present invention includes: an inverter unit 130 that converts a DC voltage into an AC voltage of a predetermined frequency to output; a power-transmission antenna 140 into which the AC voltage is input from the inverter unit 130; and a power-transmission control unit 150 that controls a frequency of an AC voltage output by the inverter unit 130, with electric energy being transmitted via an electromagnetic field from the power-transmission antenna 140 to a power-reception antenna that faces the power-transmission antenna 140, wherein the power-transmission control unit 150 controls in such a way as to select a frequency at which an antenna unit works as a constant voltage source when seen from a load side, to transmit power.

Abstract: A vehicle includes a vehicle body having a steering section and a main body section connected together; a steerable wheel which is rotatably mounted to the steering section and which steers the vehicle body; a non-steerable wheel which is rotatably mounted to the main body section; a steering apparatus for inputting a steering instruction information; an inclination actuator apparatus for inclining the steering section or the main body section in a turning direction; a steering actuator apparatus for varying a steering angle of the steerable wheel based on the steering instruction information inputted from the steering apparatus; and a control apparatus which controls the inclination actuator apparatus and the steering actuator apparatus. The control apparatus controls a center of gravity to move in a steering direction included in the steering instruction information at an initial steering stage so that an acceleration toward turning-locus inner side is generated.

Abstract: A power transmission system includes an inverter section for outputting AC power of a predetermined frequency, a power transmission antenna for receiving AC power from the inverter section as input and a control section for controlling the frequency of the AC power output from the inverter section and computationally determining the inverter efficiency of the inverter section for the purpose of transmitting electric energy to a power reception antenna disposed oppositely relative to the power transmission antenna by way of an electromagnetic field, wherein the control section controls the system by computationally determining the inverter efficiency, while lowering the operational frequency from an upper limit frequency by a predetermined unit frequency at a time, and selecting the frequency that provides the highest inverter efficiency for the system to transmit power.

Abstract: A power transmission system includes: a switching element that converts a DC voltage into an AC voltage of a predetermined frequency to output; a power-transmission antenna unit into which the output AC voltage is input; a current detection unit that detects current flowing through the power-transmission antenna unit; a peak hold unit that acquires a peak value of current detected by the current detection unit; a timer unit that measures a timer value of a difference in time between when the switching element is turned ON and when a zero current is detected by the current detection unit; a frequency determination unit that determines the frequency based on the peak value acquired by the peak hold unit and the timer value measured by the timer unit; and a control unit that drives, based on the frequency determined by the frequency determination unit, the switching element to transmit power.

Abstract: When measurements by sensors are impossible, the angular position of the vehicle is estimated from the conditions including rotation of the drive wheel and the driving torque so that the vehicle may travel in an inverted-pendulum position even in case of a failure of measurements of the vehicular position of angle. To achieve the object, the vehicle has a drive wheel rotatably mounted beneath a vehicular body, and a control unit that controls the vehicular position of angle through control of drive torque imparted to the drive wheel. The control unit has a means to estimate the vehicular angular position with respect to a vertical position from the conditions of rotation of the drive wheel and the driving torque.

Abstract: Described herein are devices and methods for controlling inclination in a vehicle. In certain aspects, inclination of the vehicle can be controlled with an inclination control processing section that includes a first control value limiting processing section which calculates a moving amount of the centroid, calculates a maximum angular acceleration, and limits a variation of the control value for inclination control on the basis of the maximum angular acceleration.

Abstract: The vehicle includes a vehicle body having a steering section and a drive section connected together; a steerable wheel which steers the vehicle body; a drive wheel which drives the vehicle body; an inclination actuator apparatus for inclining the steering section or the drive section in a turning direction; a plurality of sensors which detect lateral accelerations; yaw angular velocity detection means; vehicle speed detection means; and a control apparatus which controls the inclination of the vehicle body by controlling the inclination actuator apparatus. The control apparatus performs feedback control on the basis of the lateral accelerations, calculates a link angular velocity predicted value from the derivative value of the yaw angular velocity and the vehicle speed, and controls the inclination of the vehicle body by performing feedforward control while using the calculated link angular velocity predicted value.

Abstract: An information display apparatus which improves the position accuracy of superimposed displays. In a navigation apparatus, a position relationship detection unit acquires, as position information, the relationship between the position of the vehicle and the actual position where an object to be displayed in a superimposing manner should exist in the landscape, a vehicle attitude detection ECU acquires the attitude information of the vehicle, and a facial orientation recognition ECU acquires the facial orientation information of the driver. A display position determining unit determines the display position of the object on an HMD and HUD based on the position information, attitude information, and facial orientation information, and a display image generation unit performs control so as to display the object at the display position at the HMD, etc.

Abstract: When a vehicle is stopped on a slope, a brake is operated to stop rotation of a drive wheel so that no torque is applied thereto, and the posture of the body is controlled by moving an active weight portion so that stabilized stop state of the vehicle can be achieved without consuming a large quantity of energy. The vehicle comprises the drive wheel attached rotatably to the body, the active weight portion attached movably to the body, and a vehicle controller for controlling the posture of the body by controlling at least one of the drive torque imparted to the drive wheel and the position of the active weight portion, wherein the vehicle controller controls the posture of the body by controlling only the position of the active weight portion when the vehicle is stopped on a slope.

Abstract: The gradient of a road surface is estimated with a change in the attitude of a vehicle also taken into consideration. As a result, the gradient of the road surface can be estimated with high accuracy, and this enables the vehicle to stably stop and travel independently of the gradient of the road surface. The vehicle has a drive wheel rotatably mounted on a vehicle body and also has a vehicle control device for controlling the attitude of the vehicle by controlling drive torque applied to the drive wheel. The vehicle control device estimates the gradient of the road surface based on the attitude of the vehicle and corrects the drive torque based on the gradient.

Abstract: A camber angle changing mechanism is provided with a base member connected to the vehicle body side, a motor provided to the base member and generating rotational driving force, a rotating power transmitting mechanism that transmits the driving force of the motor, a transmitting member connected to the power transmitting mechanism through a first connecting section, a movable member for rotatably supporting the wheel, connected to the transmitting member through a second connecting member, and changing the camber angle of the wheel by being pivoted relative to the base member by the driving force of the motor; transmitted from the transmitting member, and a device for switching between a first state in which the second connecting section, the first connecting section, and a gear rotation axis are rectilinearly arranged in that order from the wheel side and a second state in which the second connecting section, the gear rotation axis, and the first connecting section are rectilinearly arranged in that order fr

Abstract: A vehicle provides upstanding and tilted (standstill for allowing a user to get on an off the vehicle) positions without movement of the vehicle. In the vehicle, even if the vehicle body tilts, a riding section is moved in the forward-backward direction to bring the vehicle to an orientation where the center of gravity (P) of the vehicle body is on a vertical line (V) passing through ground contact points (S1) or drive wheels (12). This controls the tilt angle of the vehicle body and the position of the riding section (13) so that the center of gravity (P) does not move. Thus, the upright position and the tilted position of the vehicle are achieved without movement of the vehicle (without rotation of the wheels). Further, influences such as an error in parameters and disturbance are compensated for by a balancer that moves in the forward-backward direction.

Abstract: When a vehicle climbs up/down a step, driving torque suitable for the step climbing operation is applied to a driving wheel, and the center of gravity of a vehicle body is moved in an upward direction of the step. Thus, a stable traveling state and stable posture of the vehicle body can be maintained both when climbing up a step and when climbing down a step, whereby an occupant can operate the vehicle safely and comfortably even on a place having steps. In view of this, the vehicle includes: a vehicle body; a driving wheel rotatably attached to the vehicle body; and a vehicle control apparatus for controlling driving torque that is applied to the driving wheel and controlling posture of the vehicle body. When climbing up/down a step on a road, the vehicle control apparatus controls a position of center of gravity of the vehicle body in accordance with the step.

Abstract: A non-contact power transmission system wherein, when transmitting power, it is possible to effectively perform non-contact power transmission by means of a series of power transmitting sequences which begins with recognizing and setting the power transmitting conditions, then with beginning the power transmission, and ends with completing the power transmission. Disclosed is a system for transmitting power in a non-contact manner to devices, such as vehicles, that use electric energy as the power source, which is provided with a power reception side antenna that is mounted on the device and that receives the power, and a transmission side antenna that sends power to the power reception side antenna.

Abstract: To provide a vehicle control device that improves the accuracy of an automatic follow-up control in an inverted pendulum vehicle, a vehicle control device according to the present invention performs an automatic follow-up running control in an inverted pendulum vehicle so as to automatically follow a preceding vehicle.

Abstract: A control device corrects the alignment of wheels of a vehicle during travel to improve fuel consumption performance. Operating conditions of a suspension device (alignment adjustment device) are controlled by alignment control while the vehicle is traveling, and when the alignment of the wheels is adjusted, travel resistance of the vehicle increases or decreases. The control device detects the travel resistance of the vehicle based on the value of an electric current supplied to a wheel drive device (electric motor), and the alignment of the wheels is adjusted so that the travel resistance of the vehicle decreases. As a result, the alignment of the wheels during travel is adjusted to a correct state to improve fuel consumption performance.

Abstract: An electric power transmission system includes: a transmitting-side system that includes switching elements that convert a direct-current voltage to an alternating-current voltage and that output the alternating-current voltage and a transmitting-side magnetic resonance antenna unit that has a first inductor and a first capacitor directly coupled to each other and to which the output alternating-current voltage is input; and a receiving-side system that includes a second inductor and a second capacitor directly coupled to each other and that resonates with the transmitting-side magnetic resonance antenna unit via electromagnetic field to thereby receive electric energy output from the transmitting-side magnetic resonance antenna unit.