144 results about "Electromagnetic suspension" patented technology

According to the implantable magnetic suspension blood pump structure, an impeller is suspended in a containing cavity of a pump shell and can rotate around the central axis of the pump shell, and blood is sucked in from an inlet and discharged from an outlet; the motor comprises a motor stator assembly arranged in the pump shell and a rotor magnet array arranged on the impeller. The magnetic suspension device comprises an electromagnet arranged in the pump shell and a suspension magnet assembly arranged on the impeller, and electromagnetic suspension force provided by the electromagnet and passive permanent magnet bias suspension force provided by the suspension magnet assembly jointly maintain suspension balance of the impeller. The motor and the magnetic suspension device are independently controlled, so that the negative influence of low signal detection accuracy caused by magnetic field coupling is effectively reduced; the hybrid magnetic suspension structure reduces power consumption of the magnetic suspension device; the arrangement positions of the motor stator assembly and the electromagnet enable the blood pump to be compact in structure and reduce the size and weight; the gap and the position of the electromagnet and the suspension magnet assembly are accurately controlled, accurate control over the suspension position of the permanent magnet is achieved, and the pumping efficiency and stability of the blood pump are improved.

The invention belongs to the field of advanced inorganic non-metallic materials, and relates to a 3D special-shaped glass bending tempering forming method and system, which comprises the following steps: according to initial stress distribution data, partitioning a glass curved surface by adopting a k-means clustering algorithm, determining an independent temperature control parameter required by each partition, generating a multi-mode temperature field partitioning scheme, partition temperature control data is obtained; according to the stable temperature distribution data, a non-contact electromagnetic suspension technology is adopted to control the distance between the glass and the mold, electromagnetic field intensity distribution data is generated, the stress state of the glass is calculated through finite element analysis, and contact stress reduction data is obtained; and aiming at the optimized mechanical property data, integrating the temperature field, the deformation rate and the stress distribution data by adopting a data fusion algorithm, generating a process parameter database for bending and tempering forming of the 3D special-shaped glass, and determining final production control parameters.

The invention relates to the technical field of magnetron sputtering, and particularly discloses a magnetron sputtering silver-coated conductive material powder device based on an ultrasonic-electromagnetic suspension composite dispersion system and application of the magnetron sputtering silver-coated conductive material powder device. In order to solve the technical problems of powder agglomeration, low target material utilization rate and poor large-scale production uniformity, a porous ceramic tool plate is used as a core carrier, and a high-frequency ultrasonic vibrator array (adjustable in 20-100kHz), a planar rectangular cathode (with an inclination angle of 0-15 degrees) and a Helmholtz coil (0.1-0.5 T rotating magnetic field) are integrated; non-contact dispersion of powder and precise coating of a silver layer are achieved through the cavitation effect, electromagnetic suspension and multi-target cooperative sputtering. The tool disc adopts a gradient aperture design, and is combined with liquid nitrogen micro-channel cooling and a modular sub-cavity structure, so that the powder dispersion uniformity (CV value lt; 5%), the silver layer porosity (llt; 1%), the target material utilization rate (52%) and the single-furnace productivity (72 kg / 8 h) are obviously optimized, and an efficient and environment-friendly industrialization solution is provided for the field of electronic materials.

The present invention relates to the field of magnetron sputtering technology, and specifically discloses a magnetron sputtering silver-coated conductive material powder device based on an ultrasonic-electromagnetic suspension composite dispersion system and its application. In response to the technical difficulties of powder agglomeration, low target utilization rate and poor uniformity in large-scale production, the present invention uses a porous ceramic tooling disk as the core carrier, integrates a high-frequency ultrasonic vibrator array (adjustable at 20-100kHz), a planar rectangular cathode (tilt angle 0-15°) and a Helmholtz coil (0.1-0.5T rotating magnetic field), and realizes non-contact dispersion of powder and precise coating of silver layer through cavitation effect, electromagnetic suspension and multi-target collaborative sputtering. The tooling disk adopts a gradient aperture design, combined with liquid nitrogen microchannel cooling and modular cavity structure, so that the powder dispersion uniformity (CV value <5%), silver layer porosity (<1%), target utilization rate (52%) and single furnace production capacity (72kg / 8h) are significantly optimized, providing an efficient and environmentally friendly industrial solution for the field of electronic materials.

The invention discloses a feeding device for film coating processing, which relates to the technical field of film coating equipment, and comprises a feeding control assembly which is mounted at the side end of a side support framework and is in sliding connection with the side end of a top transverse electromagnetic suspension guide rail of the support framework, so that high-precision compensation on the edge thickness is effectively realized on the whole, and the thickness of the edge is reduced; the compensation precision can be within + / -5 [mu] m, different edge thickness distribution and variation trends can be adapted in special film coating operation, the accuracy and stability of edge compensation are ensured by monitoring and adjusting coating liquid parameters in real time, and the production efficiency of the lithium battery diaphragm is improved in the production process of the lithium battery diaphragm. The accurate edge thickness compensation can ensure that the ion conduction performance of the edge of the diaphragm is uniform and consistent, the charging and discharging efficiency and safety of the battery are improved, the adhesion effect of the coating liquid on the edge is further optimized, uniform adhesion and stable flowing of the coating liquid on the edge are ensured, the edge effect is effectively reduced, and the edge coating quality and appearance effect are improved.

The embodiment of the invention relates to a suspension collaborative steering and fault-tolerant method for a wave adaptive unmanned ship, and the method comprises the steps: collecting the environment perception information and attitude data of the unmanned ship in real time, and carrying out the fusion processing, and generating a multi-source data matrix; pre-judging the front sea condition based on the multi-source data matrix, and when the sea condition characteristic parameters meet preset dynamic adjustment conditions, adjusting the expansion and contraction amount of each group of electromagnetic suspensions in a pre-judgment time window so as to form a draught gradient adapting to the sea condition change; when a steering instruction is received, the draft difference of floating bodies on the two sides of the unmanned ship and the thrust difference of propelling systems on the two sides are synchronously adjusted, so that the steering track is controlled, and transverse inclination of the ship body is restrained; in the sailing process, the working states of the electromagnetic suspension and the propelling system are monitored in real time, faults are classified, when it is detected that the execution units are abnormal, a fault-tolerant reconstruction strategy is triggered according to the fault types, and stress distribution or propelling thrust is reconstructed by locking abnormal parts and utilizing the remaining execution units, so that the sailing capacity of the unmanned ship is maintained.

The invention relates to the technical field of maglev vehicle walking mechanisms, and provides a bilateral single-pull-rod traction suspension frame suitable for a single-section superconducting electric maglev vehicle, which improves the reliability of a suspension frame system, optimizes the spatial arrangement of suspension frame equipment, reduces the complexity of electrical pipelines, and facilitates the installation and maintenance of each equipment of the suspension frame. According to the technical scheme, the bilateral single-pull-rod traction suspension frame suitable for the single-section superconducting electric magnetic levitation vehicle comprises framework side beams, framework end beams, framework cross beams and traction pull rods, the two framework side beams are longitudinally arranged in parallel, and the ends of the two framework side beams are fixedly connected through the framework end beams to form a rectangular framework body; the two framework cross beams are arranged in the framework body in parallel, the ends of the framework cross beams are fixedly connected with the middles of the framework side beams, the centers of the top faces of the two framework end beams are each provided with a first installation base, one end of the traction pull rod is connected with the first installation bases, and the other end of the traction pull rod is connected with the traction device.

The utility model discloses a suspension beam for an electromagnetic suspension beam crane, and relates to the technical field of electromagnetic suspension beam cranes. The side surface of the suspension beam is provided with a chute which is arranged along the axial direction of the suspension beam and penetrates through the suspension beam; a plurality of sliding blocks which are sequentially arranged at intervals in the axial direction of the suspension beam and a driving mechanism for driving the sliding blocks to synchronously move are arranged in the sliding grooves, and hanging rings connected with the electromagnetic chucks are arranged on the two sides of the sliding blocks exposed through groove openings of the sliding grooves; when the electromagnetic chuck device is used for adsorbing and lifting objects with different sizes, the overall length of the plurality of electromagnetic chucks can be adaptively adjusted according to the sizes of the objects, so that the plurality of electromagnetic chucks can be used for adsorbing and lifting the objects, and powerful support is provided for the efficient and stable lifting operation of the electromagnetic suspended beam crane.

The event triggering robust model prediction control method for the maglev train suspension system comprises the following steps: S1, considering the influence of track irregularity interference, and establishing a mathematical model of the maglev train suspension system interfered by the track irregularity; s2, according to the established mathematical model of the suspension system and the state of the balance point of the suspension system, obtaining a tracking error model of the suspension system; s3, establishing an equivalent linear model, and calculating an equivalent state constraint and a control input constraint; s4, designing an event triggering robust model predictive control strategy by considering the state constraint and the control input constraint; s5, verifying recursive feasibility and system stability of the event-triggered robust model predictive control strategy; according to the method, the influence of track irregularity on the suspension system of the electromagnetic suspension train is eliminated, the suspension precision of the suspension system is improved, and the problems of calculation pressure and communication resource shortage caused by high-frequency control in the suspension control process of the magnetic suspension train are relieved on the basis of ensuring the suspension stability of the magnetic suspension train.

The utility model discloses a suspension type maglev vehicle and a suspension framework thereof, and relates to the technical field of rail transit, the suspension framework of the suspension type maglev vehicle comprises a first longitudinal beam and a second longitudinal beam, the second longitudinal beam is located below the first longitudinal beam, and the two ends of the first longitudinal beam are connected with the two ends of the second longitudinal beam; the middle part of the first longitudinal beam is connected with the middle part of the second longitudinal beam, the first longitudinal beam and the second longitudinal beam are integrally shaped like a Chinese character'ri ', the first longitudinal beam and the second longitudinal beam are provided with mounting structures, and the mounting structures are used for connecting components of the electromagnetic suspension walking part. According to the suspension type maglev vehicle suspension framework, through the adoption of the suspension framework with the structural design shaped like the Chinese character'ri ', a plurality of components of an electromagnetic suspension walking part are effectively and reasonably integrated in a limited space, meanwhile, the bearing capacity and stability of the framework are guaranteed, and the problems that in the prior art, a framework structure is not compact enough, and the occupied space is large are solved; and the overall performance and the operation efficiency of the vehicle are improved.

The invention relates to an axial permanent magnet suspension bearing based on electromagnetic suspension and a control system thereof, the axial permanent magnet suspension bearing comprises an axial permanent magnet suspension bearing stator, an axial permanent magnet suspension bearing rotor, a load, an axial permanent magnet bearing and two radial electromagnetic bearings, the axial permanent magnet suspension bearing rotor and the radial electromagnetic bearings are both mounted in the axial permanent magnet suspension bearing stator; the axial permanent magnet bearing is installed on the axial permanent magnet suspension bearing rotor, the axial permanent magnet suspension bearing rotor is connected with a load, the axial permanent magnet suspension bearing rotor penetrates through the radial electromagnetic bearings and the axial permanent magnet bearing, and the radial electromagnetic bearings are located on the two sides of the axial permanent magnet bearing. Axial suspension is realized through relative movement among a plurality of annular permanent magnets of the axial permanent magnet bearing. The radial control of the axial permanent magnet suspension bearing is realized, so that the axial permanent magnet suspension bearing designed based on a permanent magnet array suspension structure can work in an optimal suspension gap, and the buoyancy-weight ratio is greatly improved in the axial direction.

The invention provides an active electromagnetic suspension based on a linear motor. The active electromagnetic suspension comprises a sleeve, a linear motor body, two damping parts, a cooling assembly, a conveying device and a plurality of cooling fins. The linear motor main body is mounted in the sleeve; the two damping pieces are installed at the two ends of the linear motor body respectively. The cooling assemblies are respectively arranged in the sleeves; the conveying device is arranged on the surface of the sleeve; and the plurality of radiating fins are respectively arranged on the surface of the sleeve. According to the active electromagnetic suspension based on the linear motor, the multiple cooling fins, the multiple cooling rings and the multiple connecting pipes are arranged on the surface of the sleeve to be matched with the conveying device for use; after the linear motor main body works in the sleeve to generate temperature, cooling and heat conduction operation can be carried out through a plurality of cooling rings, a conveying device and a plurality of cooling fins, meanwhile, the whole device is installed on the surface of the sleeve so that the whole device can be compactly installed, and the influence of the device in use can be reduced.

The present application discloses a linear motor, an electromagnetic suspension and a vehicle. The linear motor includes a primary iron core, a secondary assembly and a position sensor. The primary iron core is an annular structure with a hollow cavity; the secondary assembly is connected to the primary iron core and the two can move relative to each other along a first direction; the position sensor has a first component and a second component; one of the first component and the second component is connected to the primary iron core, and the other is connected to the secondary assembly; at least a part of the first component and / or the second component is disposed in the hollow cavity.

The invention discloses a stator assembly, a linear motor, an electromagnetic suspension and a vehicle. The stator assembly comprises a stator core shaft, a winding, a conductive assembly and an adapter, a cavity is formed in the stator core shaft, a through hole communicated with the cavity is formed in the shaft wall of the stator core shaft, and the projection height of the through hole on the axis of the stator core shaft is x; the winding is arranged on the periphery of the stator mandrel, the conductive assembly is installed in the cavity, a welding part at the first end of the adapter penetrates through the through hole and then is electrically connected with the conductive assembly, the second end of the adapter extends out of the stator mandrel and is electrically connected with the winding, and the projection height of the welding part on the axis of the stator mandrel is y; wherein x and y meet the relational expression that x is larger than y + 3 mm. According to the stator assembly provided by the invention, the difference between the projection heights of the through hole and the welding part on the axis of the stator core shaft is set to be greater than 3mm, so that the operation difficulty that the welding part of the adapter passes through the through hole can be reduced.

The invention relates to the technical field of magnetic suspension planar motors, and discloses an electro-magnetic magnetic suspension planar motor coil configuration, which comprises a planar motor stator formed by a plurality of equivalent N-pole coils and a plurality of equivalent S-pole coils, the plurality of equivalent N-pole coils are arranged in a rectangular array, each equivalent S-pole coil is arranged among four adjacent equivalent N-pole coils, and the equivalent S-pole coils are arranged in a rectangular array. The middle radius of each equivalent N-pole coil is shrunk, the radiuses of the two ends of each equivalent S-pole coil are shrunk, the sections of the equivalent N-pole coils and the equivalent S-pole coils are double-trapezoid, and the current directions of the equivalent N-pole coils and the equivalent S-pole coils are opposite; the planar motor rotor is positioned above the planar motor stator and is formed by stacking a plurality of layers of ceramic-based printed coil circuit board groups with the same configuration at the same position; a cooling system is arranged on the planar motor stator; thermal demagnetization of the motor can be avoided, array parameters can be adjusted in real time, the harmonic proportion in magnetic field distribution is reduced, the motion precision of the motor is improved, and the purpose of improving the performance of the motor is achieved.

The invention provides a vehicle electromagnetic suspension assembly, a vehicle suspension system and a vehicle. The vehicle electromagnetic suspension assembly comprises a first supporting piece, a second supporting piece, an elastic piece and an electromagnetic driving device. The first supporting piece is used for being installed on a frame of a vehicle. The second supporting piece is used for being installed on a wheel of the vehicle. The elastic piece is supported between the first supporting piece and the second supporting piece and stretches out and draws back in the linear direction. The electromagnetic driving device is supported between the first supporting piece and the second supporting piece and actively applies damping force to drive the second supporting piece to move relative to the first supporting piece in the direction parallel to the straight line. The system is high in performance upper limit, simple in structure, high in response speed and capable of meeting user requirements.

The application discloses a kind of based on binocular camera formula hybrid electromagnetic suspension control system, including travel information detection unit, binocular camera comprehensive evaluation index calculation unit, binocular camera formula hybrid electromagnetic suspension control mode selection unit, binocular camera formula hybrid electromagnetic suspension execution unit.Travel information detection unit is used to obtain outdoor temperature, full energy feedback control mode execution time, half energy feedback half energy consumption control mode execution time, full energy consumption control mode execution time;Binocular camera comprehensive evaluation index calculation unit is used to calculate image pre-detection evaluation factor, original image correction evaluation factor, temperature compensation evaluation factor, to obtain binocular camera comprehensive evaluation index;Binocular camera formula hybrid electromagnetic suspension control mode selection unit includes full energy feedback control mode, half energy feedback half energy consumption control mode, full energy consumption control mode;Binocular camera formula hybrid electromagnetic suspension execution unit is adjusted according to different control mode to vehicle corresponding rule.

The invention discloses an electromagnetic suspension based on a planetary roller screw and a permanent magnet fault-tolerant motor, and belongs to the technical field of vehicle suspensions and motor driving. The electromagnetic suspension comprises a permanent magnet fault-tolerant motor, a reverse planetary roller screw and a spring. The permanent magnet fault-tolerant motor serves as a driving source, a rotor of the permanent magnet fault-tolerant motor is integrated with the lead screw nut, the permanent magnet fault-tolerant motor rotates to enable the pin rollers to rotate and revolve around the lead screw at the same time, then the rotating motion is converted into linear motion of the lead screw, and therefore axial acting force is output. The spring is connected with the shell and the lower connector, mainly bears the static weight of the vehicle body and has a synergistic effect with the acting force output by the motor. The device is compact in structure, high in transmission efficiency, good in fault-tolerant operation capacity, good in reliability, high in road impact resistance and capable of effectively restraining vibration of a vehicle body.

A primary assembly (1), a linear motor (6), an electromagnetic suspension (7) and a vehicle (8). The primary assembly (1) comprises an iron core (5), a separator (13) and a drain port (172), the iron core (5) is provided with an accommodating chamber (100); the separator (13) is arranged in the accommodating chamber (100), and the separator (13) separates the accommodating chamber (100) along the axial direction of the accommodating chamber (100) to form a first chamber (1001); the drain port (172) is in fluid communication with the first chamber (1001), and the drain port (172) is arranged away from the separator (13); coolant enters the first chamber (1001) via a supply port (172) disposed close to the separator (13), and is discharged out of the accommodating chamber (100) via the drain port (172).

The invention discloses a suspension electromagnet and a magnetic suspension vehicle, and relates to the technical field of vehicle engineering. The suspension electromagnet comprises a constant magnetic conduction group, the constant magnetic conduction group comprises a plurality of constant conduction units which are sequentially arranged in the advancing direction, the constant conduction units are connected with a controller, and the controller is used for adjusting the magnitude and / or direction of electromagnetic force provided by the constant conduction units; the superconducting magnetic group is arranged below the normal magnetic group and comprises a plurality of superconducting units which are sequentially arranged along the advancing direction; wherein a normal conduction magnetic circuit of the normal conduction unit can pass through a suspension air gap between the normal conduction magnetic group and the track and the track, and a superconducting magnetic circuit of the superconducting unit can pass through the normal conduction unit, the suspension air gap and the track. Due to the fact that the normal conduction units and the superconducting units are arranged up and down, series connection of the superconducting magnetic circuits and the normal conduction magnetic circuits is formed, the normal conduction magnetic circuits and the superconducting magnetic circuits share a magnetic circuit in the normal conduction units, the suspension air gap and the track, the total magnetic flux of the position can be changed by changing electromagnetic magnetic flux, the flexibility of suspension force adjustment is improved, and the dynamic response capacity of the suspension electromagnet is enhanced.

The invention discloses an intelligent control system and method based on rotary cylinder sail electromagnetic suspension type supporting. The system comprises a distance measuring sensing module, an intelligent control cabinet and a rotary cylinder control cabinet. The distance measurement sensing module comprises a plurality of distance measurement sensors which are uniformly arranged on the outer wall of an internal steel tower of the rotary drum sail in an annular array, measure the radial distance between the internal steel tower and an external rotary drum in real time and output a detection signal; the intelligent control cabinet is arranged in the rotary drum sail base and used for collecting inertial data of a ship and providing exciting current for the inner tower excitation module, so that the inner tower excitation module and the outer drum permanent magnet module form homopolar mutual exclusion magnetic field resultant force, and the exciting current is dynamically adjusted through a self-adaptive algorithm on the basis of the inertial data and a distance detection signal. Magnetic suspension dynamic balance of the external rotary cylinder is maintained, and a suspension state signal is generated; the rotating cylinder control cabinet is arranged in the base and used for sending working state signals such as starting / stopping, receiving suspension state signals and judging whether the rotating speed of the outer cylinder needs to be adjusted or not, and if adjustment is needed, the motor transmission mechanism is driven to change the rotating speed.

The application relates to the technical field of electromagnetic suspension, and provides a multi-layer loop control method and system of an electromagnetic suspension for coordinating vehicle performance and a vehicle.The method comprises the following steps: obtaining vehicle and motor state information through a preset sensing unit; a suspension controller calculates target control force and generates a control instruction based on a vehicle performance target and a control model; after receiving the instruction, a driving layer of an electromagnetic execution unit adopts an algorithm of FOC three-closed-loop control combined with a state observer, a current loop proportional integral control is used to track a target current, a speed loop and a position loop construct a sliding mode surface based on a state deviation through sliding mode control to design a control law, and a motor is driven to output corresponding electromagnetic force through coordinate inversion and space vector pulse width modulation.The method simultaneously compensates for the interference of motor electromagnetic characteristics, vehicle posture changes and external disturbances on motor output, accurately realizes suspension actuation control through multi-layer loop coordinated control, and effectively improves vehicle driving smoothness and safety.

The application discloses a variable stiffness and damping automobile self-tuning electromagnetic suspension, which comprises a stator shell, end covers fixedly connected to both ends of the stator shell and a mover inner core; the mover inner core is movably installed in the stator shell, two groups of coils are arranged on the mover inner core, and a plurality of tooth-shaped structures are arranged on the stator shell and the mover inner core on the left and right sides of each group of coils; a conductive copper ring is arranged at the inner wall of the stator shell on the side of one group of coils; linear bearings and supporting springs are sleeved on both ends of the mover inner core; one end of the supporting spring is fixed to the end cover, and the other end is directed to the shaft shoulder of the mover inner core; the end of the mover inner core on the side of the conductive copper ring is led out from the same side end cover and connected with a knuckle bearing, and the end cover on the other side is connected with the knuckle bearing. The application introduces two groups of electromagnetic coils to control the magnetic field intensity of electromagnetic springs and electromagnetic dampers, so that the stiffness and damping of the shock absorber can be independently tuned.

The invention belongs to the technical field of material corrosion testing, and particularly relates to a ferromagnetic metal corrosion test piece non-contact fixing device which mainly structurally comprises main magnet units arranged on the upper side and the lower side of a test piece, auxiliary magnet units arranged at the corners of the main magnet units and a laser displacement sensor arranged at the upper auxiliary magnet unit. The main magnet unit provides basic electromagnetic suspension force and balances the gravity of a test piece, the laser displacement sensor, the power amplifier and the PID controller are matched, and the auxiliary magnet unit performs electromagnetic force compensation and performs real-time fine adjustment on the position of the test piece, so that the test piece is kept in a stable suspension state; controllable electromagnetic force is applied to a ferromagnetic metal test piece through an electromagnet, so that the test piece is kept in a non-contact stable suspension state in a corrosion environment, the problems of galvanic corrosion, crevice corrosion and other abnormal local corrosion caused by a contact fixing mode are avoided, and the accuracy of material corrosion rate measurement is improved; the system has the advantages of high control precision, low power consumption and high environmental applicability.

The present invention provides a simulation model and simulation method for a superconducting electric suspension system damper, wherein the simulation model includes: a simulation circuit and a damping coil equivalent load; the simulation circuit includes: a damping coil module, a control module and an inverter circuit; wherein the damping coil module is used to provide a vertical speed to the control module; the vertical speed represents the speed of the damper in the vertical direction; the control module is used to generate a first switching signal according to the vertical speed to control the inverter circuit; the inverter circuit is used to output a corresponding input current to the damping coil module and the damping coil equivalent load according to the first switching signal; the damping coil module is used to generate a damping force according to the input current; the damping coil equivalent load is used to simulate the electrical characteristics of the damper according to the input current. The above-mentioned simulation model can control the current flowing through the damping coil module in combination with relevant control strategies, and provide support for the design of active dampers.

The invention discloses a collision control method, system and device based on an electromagnetic suspension, which are applied to collision control equipment based on the electromagnetic suspension, and the method comprises the following steps: receiving data of inertial measurement equipment, a vehicle body stability controller and safety airbag control equipment in real time, and determining a vehicle state; and according to the vehicle state, each electromagnetic suspension actuator is controlled to be adjusted to the corresponding electromagnetic flux state. According to the method, through accurate regulation and control of electromagnetic flux, the balance and stability of a vehicle body are actively maintained in the emergency braking and collision process, pitching and side tipping are effectively restrained, a better survival posture is provided for a passenger compartment, and in cooperation with passive safety systems such as an air bag, the safety during collision can be remarkably improved, and harm caused by collision is reduced; the advantages of simple structure and light weight of the electromagnetic suspension device are fully utilized, the safety is improved, the problems of high energy consumption of a hydraulic system or high cost and low reliability of an air system are solved, and unification of safety, energy efficiency and reliability is achieved.

The invention provides a self-stabilizing magnetic fluid double-suspension bearing, which relates to the field of magnetic fluid double-suspension bearings, and comprises a bracket, a rotating shaft, a first radial bearing unit, a second radial bearing unit, a first integrated valve block, a second integrated valve block and a power unit, the first radial bearing unit, the first integrated valve block, the second radial bearing unit and the second integrated valve block are sequentially arranged on the rotating shaft in a sleeving mode, the first radial bearing unit and the second radial bearing unit are connected with the support, the first radial bearing unit is connected with the first integrated valve block, and the second radial bearing unit is connected with the second integrated valve block. The second radial bearing unit is connected with the power unit, and the power unit is connected with the rotating shaft through a coupler. Power is provided through the rotating speed of the main shaft, external energy input is not needed, hydrostatic pressure supporting force can be provided on the premise that original electromagnetic suspension force is not affected, and the bearing capacity and rigidity of the magnetic fluid double-suspension bearing are improved.

The invention discloses a linear motor, an electromagnetic suspension and a vehicle, the linear motor comprises a primary assembly, the primary assembly comprises a core shaft and a winding sleeving the core shaft, and the core shaft defines an accommodating chamber; at least part of the conductive assembly is arranged in the containing cavity and fixedly connected with the mandrel, and the conductive assembly is electrically connected with the winding and the motor controller. Therefore, by arranging the conductive assembly and fixedly connecting the conductive assembly with the mandrel, the conductive assembly can be firmly installed, so that the connection between the conductive assembly and the motor controller can be stable, the connection between the linear motor and the motor controller can be stable, and the use safety and use reliability of the linear motor can be improved; at least part of the conductive component is arranged in the accommodating cavity, so that the space utilization rate is improved, and the miniaturization design of the linear motor is realized.

The invention discloses an electromagnetic drive control system and method, and the system comprises an electromagnetic track which comprises a plurality of drive coils which are used for generating a moving magnetic field; the sample support is arranged in the electromagnetic track, internally provided with a magnet and directionally moves along the electromagnetic track under the action of the moving magnetic field; the position / speed detection module is used for collecting motion state data of the sample support in real time; the control module is integrated with an FOC control algorithm and regulates and controls the driving current according to the motion state data; and the driving module performs current modulation on the driving coil according to the driving current to generate a moving magnetic field. According to the control system, the sample support can obtain high acceleration and speed, and the sample support can stably run in the electromagnetic track by continuously moving the magnetic field.

This invention discloses a series-parallel switching hydraulic-gas integrated force-controlled suspension system for automobiles and its usage method, belonging to the field of automotive suspension technology. This invention solves the problem that the adjustable frequency range of suspension systems is relatively low, and that they cannot simultaneously achieve rapid adjustment and wide-frequency vibration damping. Based on electromagnetic levitation technology, this invention sets up a magnetic levitation vibration reduction system, designing a series-parallel switching adjustment device between the hydraulic vibration absorption module and the electromagnetic levitation module. In series operation, the hydraulic vibration absorption module is actively adjusted by adjusting the valve opening size and changing the actuation speed and direction of the electromagnetic levitation module, enhancing its damping effect range. In parallel operation, the electromagnetic levitation module and the hydraulic vibration absorption module work independently. In this case, the electromagnetic levitation module can directly actuate between the sprung and unsprung masses of the vehicle, achieving vertical load-bearing and buffer limiting, and further reducing the output of its force-controlled motor dynamic load, thus improving overall energy efficiency.