Electromagnetic damping shock absorber for vehicle suspension

Abstract

The invention discloses an electromagnetic damping shock absorber for a vehicle suspension, and belongs to the field of shock absorbers for vehicle suspensions. The electromagnetic damping shock absorber comprises an outer cylinder and a piston rod, wherein the outer cylinder comprises a stator iron core and a cake type three-phase winding; the cake type three-phase winding is fixedly connected to the internal of a piston cavity of the stator iron core according to a spiral layout method; the piston rod comprises a mover iron core and multiple sections of annular windings; the multiple sections of annular windings are fixedly connected in sequence at equal intervals to coat the mover iron core; and each annular winding is independently connected with a vehicle-mounted power supply system to form parallel connection. The electromagnetic damping shock absorber can autonomously form real-time motion damping according to the generation condition of relative motion in vehicle jolting; the generation process of the motion damping has no need to be assisted by a complex and expensive advanced feedback control system, a feedback system or an additional power element; and such parameters as the magnitude of damping force and the inherent frequency of damping are realized through adjusting the current magnitude or direction of the multiple sections of annular windings according to the classical Lenz's law of the physics.

Description

technical field [0001] The invention belongs to the field of shock absorbers for automobile suspensions, in particular to an electromagnetic damping shock absorber for automobile suspensions. Background technique [0002] The damping shock absorber is the core component of the automobile suspension system. It uses elastic elements or damping elements to buffer and consume the vibration generated by the car body when the car is running, so it can reduce the damage of parts caused by vibration load and improve the comfort of the vehicle. Both performance and handling stability play an important role. [0003] According to the principle of automobile damping shock absorbers and their different control methods, automobile suspension systems can be roughly divided into passive suspension systems and active suspension systems, and passive suspension systems that passively generate damping effects through springs and other shock absorbing elements. In contrast, the active suspensi...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the shock absorption effect of the existing passive suspension system can no longer meet the future development needs of the automobile suspension system, the technology of the full active suspension system is not yet mature, and the existing semi-active suspension system generally adopts a method based on rheological fluid damping change. The characteristic damping shock absorber, there is no technical problem of the semi-active suspension system based on electronic control system and electric control damping device at present, the present invention provides a kind of electromagnetic damping shock absorber for automobile suspension

Images