Demodulation circuitry includes an input terminal configured to be coupled to an analog-to-digital converter (ADC) and configured to receive a plurality of ADC outputs. The plurality of ADC outputs are generated based on resolver outputs. The demodulation circuitry also includes a rectifier configured to rectify the plurality of ADC outputs. Rectifying the plurality of ADC outputs preserves a phase of the plurality of ADC outputs. The demodulation circuitry includes amplitude determination circuitry configured to determine, based on the rectified plurality of ADC outputs, demodulated amplitude values corresponding to the resolver outputs. The demodulation circuitry further includes angle computation circuitry configured to generate position outputs based on the demodulated amplitude values.

Demodulation circuitry includes an input terminal configured to be coupled to an analog-to-digital converter (ADC) and configured to receive a plurality of ADC outputs. The plurality of ADC outputs are generated based on resolver outputs. The demodulation circuitry also includes a rectifier configured to rectify the plurality of ADC outputs. Rectifying the plurality of ADC outputs preserves a phase of the plurality of ADC outputs. The demodulation circuitry includes amplitude determination circuitry configured to determine, based on the rectified plurality of ADC outputs, demodulated amplitude values corresponding to the resolver outputs. The demodulation circuitry further includes angle computation circuitry configured to generate position outputs based on the demodulated amplitude values.

A gyro-stabilizer for a two-wheeled single-track vehicle, preferably a motorcycle, applicable in several driving modes, is configured in the form of a gyroscope in a gimbal mount, an outer ring of which is connected by a two-way axial pivot joint to the vehicle frame, wherein the axis of said joint is oriented along the longitudinal axis of the vehicle; an inner ring of the gimbal mount is connected by a two-way axial pivot joint to the outer ring; and a spin axis of the gyroscope is connected by a two-way axial pivot joint to the inner ring, wherein the axes of all three pivot joints are mutually perpendicular, and wherein the gyro-stabilizer has a means for locking rotation of the outer ring about the axis of the pivot joint between said outer ring and the frame of the vehicle. The gyro-stabilizer is disposed on the rear wheel swingarm and has a means for locking rotation of the inner ring about the axis of the pivot joint between the inner ring and the outer ring.

Disclosed is a magnetic-fluid momentum sphere, which is used for satellite attitude adjustment. The magnetic-fluid momentum sphere comprises stators and a spherical shell. The stators are classified into three groups, axes of the three groups of stators are orthogonal to each other, each group comprises two stators arranged symmetrically about the center of the spherical shell, and the inner surfaces of the stators are spherical surfaces. The spherical shell is formed by combining two hemispherical shells, the material of the spherical shell is a non-ferromagnetic material, the inner surfaces of the stators closely adhere to the outer surface of the spherical shell, there is no relative movement between the spherical shell and the inner surfaces of the stators, and the spherical shell is filled with magnetic fluid. The magnetic-fluid momentum sphere achieves a small size and mass, low costs, and small coupling among the axes.

The present disclosure provides systems, methods, and devices for operating a vehicle, such as a self-balancing vehicle, using a steering member and/or a braking member. A resistance to movement of the steering member may be controllable based upon an operating state or change thereof of the vehicle. The braking member may control a resistance to motion of at least one of at least two wheels of the vehicle based upon an operating state or change thereof of the vehicle.

An apparatus for providing a balance to objects attached to the apparatus. The apparatus comprises an annular body, drive assemblies, two hoops, and a harness. The annular body is placed around an object. Each drive assembly comprises a primary sheave radially and rotatably disposed on the annular body, a first secondary sheave rotatably disposed on the annular body above the primary sheave, a second secondary sheave rotatably disposed on the annular body below the primary sheave, and a motor for rotating the primary sheave. The two hoops comprise a first hoop rotatably supported between the primary sheave and the first secondary sheave and a second hoop rotatably supported between the primary sheave and the second secondary sheave. Rotating the primary sheave rotates the first hoop in a first direction and the second hoop in a second direction for generating the balance. The harness attaches the apparatus to the object.

An apparatus for providing a balance to objects attached to the apparatus. The apparatus comprises an annular body, drive assemblies, two hoops, and a harness. The annular body is placed around an object. Each drive assembly comprises a primary sheave radially and rotatably disposed on the annular body, a first secondary sheave rotatably disposed on the annular body above the primary sheave, a second secondary sheave rotatably disposed on the annular body below the primary sheave, and a motor for rotating the primary sheave. The two hoops comprise a first hoop rotatably supported between the primary sheave and the first secondary sheave and a second hoop rotatably supported between the primary sheave and the second secondary sheave. Rotating the primary sheave rotates the first hoop in a first direction and the second hoop in a second direction for generating the balance. The harness attaches the apparatus to the object.

Feedback control circuitry includes rate limiter circuitry configured to generate a rate limited position command based on a position command for a controlled component and based on a speed command for the controlled component. The feedback control circuitry also includes error adjustment circuitry configured to apply a control gain to an error signal to generate an adjusted error signal. The error signal is based on position feedback and the rate limited position command, and the position feedback indicates a position of the controlled component. The feedback control circuitry further includes an output terminal configured to output a current command generated based on the adjusted error signal.

Feedback control circuitry includes rate limiter circuitry configured to generate a rate limited position command based on a position command for a controlled component and based on a speed command for the controlled component. The feedback control circuitry also includes error adjustment circuitry configured to apply a control gain to an error signal to generate an adjusted error signal. The error signal is based on position feedback and the rate limited position command, and the position feedback indicates a position of the controlled component. The feedback control circuitry further includes an output terminal configured to output a current command generated based on the adjusted error signal.

Dither circuitry includes harmonic signal generation circuitry configured generate a high order even harmonic of a base excitation signal. The dither circuitry also includes a combiner configured to generate a dithered excitation signal based on the high order even harmonic and the base excitation signal. The dither circuitry further includes an output terminal configured to output the dithered excitation signal to a sensor device.