30results about How to "Suppress gyro effect" patented technology

The invention discloses a vehicle-mounted flywheel battery by adopting a five-degree-of-freedom hybrid magnetic bearing. The right middle inside a sealed vacuum chamber is provided with the five-degree-of-freedom hybrid magnetic bearing; the rotation shaft in the right middle of the magnetic bearing is coaxially and tightly sleeved with a magnetic bearing rotor; the right axial middle of the magnetic bearing rotor is tightly sleeved with a pulling force disc; the pulling force disc is fixedly sleeved with a flywheel; a stator pole is wound with a radial control coil; the axial stator is internally provided with an axial control coil; the right middle outside the top surface of an outer shell is a motor/generator, and the rotation shaft of the motor extends to the outer shell from top to bottom and is coaxially and fixedly connected onto the upper end of the rotation shaft of the magnetic bearing; the pulling force disc and the flywheel are integrated as a whole, the axial length of the flywheel battery is further shortened, gyroscopic effects can be effectively suppressed, two single three-degree-of-freedom hybrid magnetic bearings are integrated to form the five-degree-of-freedom hybrid magnetic bearing and are distributed at two sides of the pulling force disc in a mirror symmetry mode, and the control precision is high.

The invention discloses a spherical electric vehicle magnetic suspension flywheel battery; an inner housing, a spherical stator, a spherical cavity rotor, two permanent magnets and two magnetic suspension spherical surface bearings are arranged in a vacuum cavity; the spherical stator is arranged in the right center of the flywheel housing; the spherical cavity rotor is arranged outside the spherical stator; the spherical cap shape inner housing having the same spherical core is arranged outside the spherical cavity rotor; the bottom opening of the inner housing is seamlessly fixedly connected with the first permanent magnet in a spherical cap shape; the inner housing and the spherical cavity rotor are fixedly connected through a rotor connector; the second permanent magnet in the spherical cap shape is arranged right below the first permanent magnet, and fixedly connected on the inner surface of the flywheel housing; the two magnetic suspension spherical surface bearings are arranged between the flywheel housing and the inner housing, fixedly connected on the inner wall of the flywheel housing, and two central shafts thereof are intersected. The spherical electric vehicle magnetic suspension flywheel battery can eliminate air friction losses on the flywheel, and can increase the gyro control moment scope, thus inhibiting the flywheel gyroscopic effect.

The invention discloses an ultrathin vehicle-mounted magnetic suspension flywheel battery for an electric vehicle, and a working method thereof. A motor bracket, an axial magnetic flux motor, a flywheel, an inner stator of a five-degree-of-freedom magnetic bearing, a coil and a permanent magnet are coaxially arranged in a shell from top to bottom, and the flywheel consists of an upper layer, a middle layer and a lower layer which are continuous; an upper annular groove is formed in the middle of the upper annular layer of the upper flywheel, the axial flux motor is placed in the upper annular groove, and an annular inner groove, a middle annular cavity and a lower annular groove are communicated and jointly used for placing the inner stator, the coil and the permanent magnet of the five-degree-of-freedom magnetic bearing; and the five-degree-of-freedom magnetic bearing comprises an axial magnetic bearing, a repulsion magnetic bearing, a torsion magnetic bearing and a radial spherical magnetic bearing from inside to outside. The mode that magnetic bearings with different properties are reused is adopted, advantage complementation is achieved, the bearing capacity and control precision of magnetic bearing supporting can be improved, the stability of a flywheel is remarkably improved, and the problem that the loss of a control coil is large due to complex working conditions can be effectively solved.

In a power steering apparatus of a watercraft with propeller applying an assist torque of an assist motor driven in correspondence to a steering direction and a steering force of a steering handle to a steering force transmission path to the propeller, an output side of the assist motor is provided with an inverse input interrupting apparatus transmitting an assist torque of the assist motor to the steering force transmission path, and interrupting an inverse input torque applied to the steering force transmission path from a side of the propeller caused by a rotational reaction force of a screw provided in the propeller with respect to the assist.

The invention provides a multi-dimensional integrated vehicle-mounted magnetic suspension flywheel battery control system, and belongs to the technical field of vehicle-mounted flywheel battery control. According to the invention, a current signal processed by a current normalizing module is used as an input signal of a support vector machine displacement prediction module; an output signal of the support vector machine displacement prediction module and a signal which is output by the fuzzy PID cross feedback control module and the neural network inverse decoupling control module and is processed by the accumulation and coordinate system conversion module are used as input signals of the improved zero power control module; a displacement signal output by the support vector machine displacement prediction module and an output signal of the improved zero power control module are used as input signals of the linear closed-loop controller, and output of the linear closed-loop controller is used as input signals of the fuzzy PID cross feedback control module and the neural network inverse decoupling control module. According to the invention, the complexity of the whole system is simplified, the real-time response characteristic is greatly improved, the gyroscopic effect can be inhibited, the stability is improved, and the energy consumption and the cost are reduced.

The invention relates to an axial permanent magnet spherical surface magnetic levitation flywheel motor, belonging to the technical field of magnetic levitation motors. The axial permanent magnet spherical surface magnetic levitation flywheel motor comprises a flywheel, a rotor and a stator. The flywheel and the rotor form an integral body, the stator and the rotor are divided into an A phase anda B phase in an axial direction, and axial reverse magnetizing permanent magnets are respectively clamped between a rotor A-phase magnetic conducting ring and a rotor B-phase magnetic conducting ringand between a stator A-phase magnetic conducting ring and a stator B-phase magnetic conducting ring; the rotor comprises a rotor A-phase spherical surface iron core, a rotor B-phase spherical surfaceiron core, a rotor permanent magnet, the rotor A-phase magnetic conducting ring and the rotor B-phase magnetic conducting ring; the stator comprises a stator A-phase spherical surface iron core, a stator B-phase spherical surface iron core, a stator permanent magnet, the stator A-phase magnetic conducting ring, the stator B-phase magnetic conducting ring and a stator sleeve; each-phase stator spherical surface iron core is provided with a wide-tooth suspension poles, narrow-tooth torque poles and magnetic isolating bodies, and the suspension poles and the torque poles employ pole shoe structures and are respectively wound with suspension control coils and torque control coils. The axial permanent magnet spherical surface magnetic levitation flywheel motor improves the global uniformity ofair gap magnetic density, achieves the shaftless support of the flywheel and inhibits the gyroscopic effect; meanwhile, the system integration level, the operation efficiency and the reliability are improved, and the decoupling of the suspension magnetic circuit and the torque magnetic circuit is achieved.

The invention discloses a three-degree-of-freedom spherical hybrid magnetic bearing with an axial self-loop. An outer axial stator, an upper annular permanent magnet, a radial stator, a lower annularpermanent magnet and a lower axial stator sequentially coaxially sleeve a rotator from top to bottom, each of the upper axial stator and the lower axial stator is formed by axially connecting an upperdisc, a middle disc and a receiving disc, the inner end surface of every upper disc extend radially inwards extends to form a conical disc, small discs are arranged between the upper and lower end surfaces of the rotor and the corresponding conical discs, the small discs are closely attached to the upper and lower surfaces of the corresponding conical discs, the upper small disc is located abovethe upper end surface of the rotor, and the lower small disc is located below the lower end surface of the rotor; and axial air gaps are left between the upper and lower small disks and the end surface of the rotor, and a control magnetic flux enters the receiving discs through return air gaps to axially form the self-loop without mounting a pushing disc, so the rotating speed of the rotor is optimized, and coupling of axial and radial magnetic fields is reduced.

The invention discloses a vehicle flywheel battery suspension control system for suppressing gyro effect and with low energy consumption. The vehicle flywheel battery suspension control system comprises a low-energy consumption control system and a gyroscopic effect suppression control system. In the low-energy consumption control system, a current sensor reads a control current as input of a PIDcontroller, the control current is regulated by the PID controller and amplified by a power amplifier to control a magnetic bearing rotor to achieve low power operation, when disturbance occurs, a feedforward controller changes the control amount according to the disturbance to offset the influence of the disturbance, a smith predictor estimates the dynamic effect caused by the disturbance entering the system, and the estimation result is fed back to the PID controller to allow the PID controller to change for compensation in advance for the disturbance. In the gyroscopic effect suppression control system, detection signals are subjected to a displacement sensing module, is sent to the PID controller for decoupling to eliminate coupling items and are converted to a current through a force/current conversion module, the current is amplified to control the smooth operation of the magnetic bearing, and when the PID controller cannot perform regulation, the feedforward controller performsregulation to weaken the disturbance or eliminate the disturbance.