Electromagnetic damping and vibration reduction device for vehicle suspension

Abstract

The invention discloses an electromagnetic damping vibration reduction device for a vehicle suspension. The electromagnetic damping vibration reduction device comprises a cylindrical fault-tolerant PMLM (Permanent Magnet Linear Motor), a motor controller, a speed sensor, a storage battery, a suspension spring and a vehicle axle, wherein the cylindrical fault-tolerant PMLM comprises a stator and a rotor, one end of the stator is arranged on the vehicle axle, the rotor is sleeved with the suspension spring, one end of the suspension spring and one end of the rotor are together arranged on a vehicle frame, the other end of the suspension spring is fixedly connected with the other end of the stator, and the motor controller is connected with the cylindrical fault-tolerant PMLM, the speed sensor and the storage battery through wires. According to the electromagnetic damping vibration reduction device for the vehicle suspension, disclosed by the invention, the feed capacity is obtained while the electromagnetic damping vibration reduction is realized after certain control strategies are adopted, and the electromagnetic damping vibration reduction device has the advantages that the fault-tolerant performance is good, the reliability is high, the driving efficiency is high, the response speed is fast, the sensitivity is high, the randomness is good, the control is stable, the structure is simple, and the like.

Description

technical field [0001] The invention belongs to the field of vehicle suspension structures, in particular to an electromagnetic damping vibration reduction device for vehicle suspension. Background technique [0002] During the driving process of the car, the vibration of the wheels, engine, transmission system, etc. will be caused by the uneven road surface, the change of the speed and the driving direction. Stability, smoothness, and driving comfort, so the suspension as a vibration-reducing and stabilizing component is essential. [0003] The suspension is used to elastically connect the frame and the axle, ease the impact on the vehicle during driving, ensure the integrity of the cargo and the comfort of the personnel, attenuate the vibration caused by the elastic system, and transmit vertical, longitudinal, and lateral reaction forces and moments , and make the vehicle body jump relative to the vehicle body according to a certain track. Different driving conditions of...

AI Technical Summary

Problems solved by technology

Once the control unit sends a pulse signal, a voltage is generated in the coil to form a magnetic field, which changes the arrangement direction of the particles and hinders the flow of oil in the piston channel, thereby increasing the damping coefficient and adjusting the vibration reduction effect of the suspension. However, the structure is complex, Expensive

Due to the high motor drive efficiency, fast response, high sensitivity, good randomness, and stable control, the invention patent "Electromagnetic Energy Feed Semi-Active Suspension Feed Energy Damping Real-time Control Device and Method" with application number 201210054782.8 requires a planetary gear mechanism, Ball screw, in addition, the number of charging batteries connected in series is selected according to the feed voltage level, and the structure is more complicated

The invention patent with the application number 200410013577.2 "Energy Feedback Electromagnetic Damping Device for Vehicle Suspension" uses a linear generator, a power converter and an energy storage unit, but the motor lacks fault-tolerant performance, the converter is more complicated, and the sensors used are relatively complex. many

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